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Product Series
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Extreme Low Pressure RO Membrane Elements

XLP-4040

Primarily used for desalination of surface water, groundwater, municipal water, etc., with salinity less than 1000mg/L. Applications include pure water, bottled drinking water, and secondary water supply for two-stage membrane systems. It features low energy consumption, high water production, extremely low operating pressure, and good desalination performance.

Extreme Low Pressure RO Membrane Elements

Extreme Low Pressure RO Membrane Elements

XLP-8040

Primarily used for desalination of surface water, groundwater, municipal water, etc., with salinity less than 1000mg/L. Applications include pure water, bottled drinking water, and secondary water supply for two-stage membrane systems. It features low energy consumption, high water production, extremely low operating pressure, and good desalination performance.

Extreme Low Pressure RO Membrane Elements

Ultra-low Pressure RO Membrane Elements

ULP-8040-2

Mainly used for desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. Its applications include packaged drinking water, community or park area water supply, food and beverages, etc. It features high water production, low operating pressure, and good desalination performance.

Ultra-low Pressure RO Membrane Elements

Ultra-low Pressure RO Membrane Elements

ULP-4040-2

Primarily used for desalination of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. Applications include packaged drinking water, community or park area water supply, food and beverage industries. It features high water production, low operating pressure, and good desalination performance.

Ultra-low Pressure RO Membrane Elements

Ultra-low Pressure RO Membrane Elements

ULP-4040HF

Mainly used for desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. Its applications include packaged drinking water, community or park area water supply, food and beverages, etc. It features high water production, low operating pressure, and good desalination performance.

Ultra-low Pressure RO Membrane Elements

Ultra-low Pressure RO Membrane Elements

ULP-8040HF

Mainly used for desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. Its applications include packaged drinking water, community or park area water supply, food and beverages, etc. It features high water production, low operating pressure, and good desalination performance.

Ultra-low Pressure RO Membrane Elements

Ultra-low Pressure RO Membrane Elements

ULP-8040MR-2

Mainly used for desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. Its applications include packaged drinking water, community or park area water supply, food and beverages, etc. It features high water production, low operating pressure, and good desalination performance.

Ultra-low Pressure RO Membrane Elements

Ultra-low Pressure RO Membrane Elements

ULP-4040MR-2

Mainly used for desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. Its applications include packaged drinking water, community or park area water supply, food and beverages, etc. It features high water production, low operating pressure, and good desalination performance.

Ultra-low Pressure RO Membrane Elements

Brackish Water Reverse Osmosis Membrane Elements

BW-8040-2

Primarily used for desalination of brackish water, surface water, groundwater, and tap water with salinity less than 5000mg/L. Applications include the preparation of pure water for electronics, power, municipal drinking water, chemical, and pharmaceutical industries. It can also be used for wastewater reuse and concentration projects. Features include good desalination performance, high water production, and low operating pressure.

Brackish Water Reverse Osmosis Membrane Elements

Brackish Water Reverse Osmosis Membrane Elements

BW-4040HF

Primarily used for desalination of brackish water, surface water, groundwater, and tap water with salinity less than 5000mg/L. Applications include the preparation of pure water for electronics, power, municipal drinking water, chemical, and pharmaceutical industries. It can also be used for wastewater reuse and concentration projects. Features include good desalination performance, high water production, and low operating pressure.

Brackish Water Reverse Osmosis Membrane Elements

Brackish Water Reverse Osmosis Membrane Elements

BW-8040HF

Primarily used for desalination of brackish water, surface water, groundwater, and tap water with salinity less than 5000mg/L. Applications include the preparation of pure water for electronics, power, municipal drinking water, chemical, and pharmaceutical industries. It can also be used for wastewater reuse and concentration projects. Features include good desalination performance, high water production, and low operating pressure.

Brackish Water Reverse Osmosis Membrane Elements

Brackish Water Reverse Osmosis Membrane Elements

BW-8040

Primarily used for desalination of brackish water, surface water, groundwater, and tap water with salinity less than 5000mg/L. Applications include the preparation of pure water for electronics, power, municipal drinking water, chemical, and pharmaceutical industries. It can also be used for wastewater reuse and concentration projects. Features include good desalination performance, high water production, and low operating pressure.

Brackish Water Reverse Osmosis Membrane Elements

Brackish Water Reverse Osmosis Membrane Elements

BW-4040

Primarily used for desalination of brackish water, surface water, groundwater, and tap water with salinity less than 5000mg/L. Applications include the preparation of pure water for electronics, power, municipal drinking water, chemical, and pharmaceutical industries. It can also be used for wastewater reuse and concentration projects. Features include good desalination performance, high water production, and low operating pressure.

Brackish Water Reverse Osmosis Membrane Elements

Fouling Resistant RO Membrane Elements

BW-8040LFR

Primarily used for desalination treatment of reclaimed water, recycled water, wastewater, and RO concentrate with salinity less than 8000mg/L. Applications include power generation, steel, electroplating, petrochemicals, coal chemical industry, dyeing, and municipal wastewater treatment, among many other fields. It features excellent desalination performance, good cleaning and recovery, and low pressure drop (pressure difference between the inlet pressure of the pressure vessel and the concentrate).

Fouling Resistant RO Membrane Elements

Fouling Resistant RO Membrane Elements

BW-8040XLFR

Primarily used for desalination treatment of reclaimed water, recycled water, wastewater, and RO concentrate with salinity less than 8000mg/L. Applications include power generation, steel, electroplating, petrochemicals, coal chemical industry, dyeing, and municipal wastewater treatment, among many other fields. It features excellent desalination performance, good cleaning and recovery, and low pressure drop (pressure difference between the inlet pressure of the pressure vessel and the concentrate).

Fouling Resistant RO Membrane Elements

Fouling Resistant RO Membrane Elements

BW-8040FR

Primarily used for desalination treatment of reclaimed water, recycled water, wastewater, and RO concentrate with salinity less than 8000mg/L. Applications include power generation, steel, electroplating, petrochemicals, coal chemical industry, dyeing, and municipal wastewater treatment, among many other fields. It features excellent desalination performance, good cleaning and recovery, and low pressure drop (pressure difference between the inlet pressure of the pressure vessel and the concentrate).

Fouling Resistant RO Membrane Elements

Fouling Resistant RO Membrane Elements

BW-4040XLFR

Primarily used for desalination treatment of reclaimed water, recycled water, wastewater, and RO concentrate with salinity less than 8000mg/L. Applications include power generation, steel, electroplating, petrochemicals, coal chemical industry, dyeing, and municipal wastewater treatment, among many other fields. It features excellent desalination performance, good cleaning and recovery, and low pressure drop (pressure difference between the inlet pressure of the pressure vessel and the concentrate).

Fouling Resistant RO Membrane Elements

Fouling Resistant RO Membrane Elements

BW-4040FR

Primarily used for desalination treatment of reclaimed water, recycled water, wastewater, and RO concentrate with salinity less than 8000mg/L. Applications include power generation, steel, electroplating, petrochemicals, coal chemical industry, dyeing, and municipal wastewater treatment, among many other fields. It features excellent desalination performance, good cleaning and recovery, and low pressure drop (pressure difference between the inlet pressure of the pressure vessel and the concentrate).

Fouling Resistant RO Membrane Elements

Mid-Pressure Low Fouling RO Elements

HW-8040

The HW-8040 membrane product is an anti-fouling aromatic polyamide composite reverse osmosis membrane element developed by Keensen High-Tech for use under complex influent conditions. This series uses a special membrane-making process to improve the hydrophilicity, charge, and roughness of the membrane sheet, reducing the growth and adsorption of pollutants and microorganisms on the membrane surface during operation. The membrane element uses a 34mil wide flow channel design to reduce clogging, lower the membrane system pressure difference, and is easy to clean, extending the service life of the membrane element.

Mid-Pressure Low Fouling RO Elements

Low Fouling RO Elements

EP-8040FR

EP-8040FR is a high salt rejection, low pressure drop, and high stability anti-pollution reverse osmosis membrane element using a new type of 34-LD grid and production technology. It is suitable for power, steel, electroplating, petrochemical, coal chemical, dyeing, papermaking, and leachate wastewater treatment and reclaimed water reuse projects with salt concentration within 10000mg/L. The pressure drop of EP-8040FR is 30% lower than that of conventional anti-pollution membranes, further improving the anti-pollution ability of the membrane element, reducing the chemical cleaning cycle, and extending the service life of the membrane element.

Low Fouling RO Elements

Ultra-Low Pressure Low Fouling RO Elements

ES-8040UFR

The ES-8040UFR is a newly developed ultra-low-pressure, anti-fouling membrane element. While enhancing the anti-fouling performance of the membrane element, it can also reduce the energy consumption of the membrane system. It is suitable for treating industrial water, municipal wastewater, surface water, and groundwater.

Ultra-Low Pressure Low Fouling RO Elements

Sea Water Desalination RO Elements

SW-8040HF

SW-8040HF seawater desalination membrane elements are suitable for high-salinity solutions or wastewater concentration, seawater desalination, (near) zero liquid discharge and other water treatment industries, helping customers solve the treatment needs of high-difficulty wastewater and seawater with salinity above 10000mg/L.

Sea Water Desalination RO Elements

Sea Water Desalination Membrane Elements

SW-8040HR

Primarily used for desalination of high-salinity source water with salinity levels above 10000 mg/L. Applications include seawater desalination, RO concentrate reuse, zero liquid discharge treatment of high-salinity wastewater, and material concentration. It features high desalination performance, stable operation, and high water production.

Sea Water Desalination Membrane Elements

Sea Water Desalination Membrane Elements

SW-8040MR

Primarily used for desalination of high-salinity source water with salinity levels above 10000 mg/L. Applications include seawater desalination, RO concentrate reuse, zero liquid discharge treatment of high-salinity wastewater, and material concentration. It features high desalination performance, stable operation, and high water production.

Sea Water Desalination Membrane Elements

Sea Water Desalination Membrane Elements

SW-4040MR

Primarily used for desalination of high-salinity source water with salinity levels above 10000 mg/L. Applications include seawater desalination, RO concentrate reuse, zero liquid discharge treatment of high-salinity wastewater, and material concentration. It features high desalination performance, stable operation, and high water production.

Sea Water Desalination Membrane Elements

Sea Water Desalination Membrane Elements

SW-4040HR

Primarily used for desalination of high-salinity source water with salinity levels above 10000 mg/L. Applications include seawater desalination, RO concentrate reuse, zero liquid discharge treatment of high-salinity wastewater, and material concentration. It features high desalination performance, stable operation, and high water production.

Sea Water Desalination Membrane Elements

Nanofiltration Membrane Elements

NF1-4040R

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.

Nanofiltration Membrane Elements

Nanofiltration Membrane Elements

NF1-8040R

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.

Nanofiltration Membrane Elements

Nanofiltration Membrane Elements

NF2-4040

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.

Nanofiltration Membrane Elements

Nanofiltration Membrane Elements

NF2-8040

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.

Nanofiltration Membrane Elements

Nanofiltration Membrane Elements

NF1-4040

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water, and wastewater treatment industries.

Nanofiltration Membrane Elements

Nanofiltration Membrane Elements

NF1-8040

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.

Nanofiltration Membrane Elements

Ultra Low Pressure RO Membrane Elements

ULP-4021

Generally applicable to desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. It can be widely used in small systems such as automatic water vending machines in communities or parks, drinking water equipment in office buildings, and pure water in medical laboratories.

Ultra Low Pressure RO Membrane Elements

Ultra Low Pressure RO Membrane Elements

ULP-2521

Generally applicable to desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. It can be widely used in small systems such as automatic water vending machines in communities or parks, drinking water equipment in office buildings, and pure water in medical laboratories.

Ultra Low Pressure RO Membrane Elements

Ultra Low Pressure RO Membrane Elements

ULP-2540

Generally applicable to desalination treatment of surface water, groundwater, municipal water, etc., with salinity less than 2000mg/L. It can be widely used in small systems such as automatic water vending machines in communities or parks, drinking water equipment in office buildings, and pure water in medical laboratories.

Ultra Low Pressure RO Membrane Elements

Sea Water Desalination RO Membrane Elements

SW-2521

Generally applicable to desalination treatment of seawater, brackish water, and high-salinity water, it can be widely used in small seawater desalination systems such as ships and islands.

Sea Water Desalination RO Membrane Elements

Sea Water Desalination RO Membrane Elements

SW-4021

Generally applicable to desalination treatment of seawater, brackish water, and high salinity water, it can be widely used in small seawater desalination systems such as ships and islands.

Sea Water Desalination RO Membrane Elements

Sea Water Desalination RO Membrane Elements

SW-2540

Generally applicable to desalination treatment of seawater, brackish water, and high salinity water, it can be widely used in small seawater desalination systems such as ships and islands.

Sea Water Desalination RO Membrane Elements

NF Membrane Elements

NF2-2540

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.

NF Membrane Elements

NF Membrane Elements

NF1-2540

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.

NF Membrane Elements

Reverse Osmosis Membrane Elements

RO-1812-50

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-1812-75

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-3020-600

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-2012-100-2

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-1812-75-2

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-3012-500

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Reverse Osmosis Water Purifier Water Efficiency Limit Values and Water Efficiency Grades".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-3013-600

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-3013-400

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-3012-600

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-3012-400

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-2812-200

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-2012-150

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

Reverse Osmosis Membrane Elements

RO-2012-100

This product is generally suitable for desalination treatment of raw water with a salt content of less than 1000mg/L. It features high desalination rate and low operating pressure, and is mainly used in small-scale direct drinking water devices for homes or offices. The product meets the Class 3 and above water efficiency requirements in GB34914-2017 "Water efficiency limit values and water efficiency grades for reverse osmosis water purifiers".

Reverse Osmosis Membrane Elements

NF Membrane Elements

NF-2012

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are mainly used in small water purification devices such as household water purification, building, and office drinking water systems.

NF Membrane Elements

NF Membrane Elements

NF-3013

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are mainly used in small water purification devices such as household water purification, building, and office drinking water systems.

NF Membrane Elements

NF Membrane Elements

NF-1812

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are mainly used in small water purification devices such as household water purification, building, and office drinking water systems.

NF Membrane Elements

NF Membrane Elements

NF-2812

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are mainly used in small water purification devices such as household water purification, building, and office drinking water systems.

NF Membrane Elements

NF Membrane Elements

NF-3012

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are mainly used in small water purification devices such as household water purification, building, and office drinking water systems.

NF Membrane Elements

A petrochemical company in Dalian

<p>A petrochemical company in Dalian&nbsp;uses&nbsp;a reverse osmosis (RO) system to treat secondary effluent from a wastewater treatment plant,with a treatment capacity of 24,000 m3/day,providing make-up water for the boiler system.<br /> In April 2024,&nbsp;the first pass membrane system in the workshop was fully upgraded with KeenSen BW-8040XLFR anti-fouling membranes.&nbsp;After installation and commissioning,&nbsp;the system has demonstrated stable performance, with both the permeate flow and water quality meeting the client&rsquo;s operational requirements.</p>

A petrochemical company in Dalian

A Petroleum and Natural Gas Technology Company in Karamay

The project uses a reverse osmosis (RO) system to treat municipal tap water for boiler feed water, with a treatment capacity of 14,000 m³/day. In 2019,KeenSen BW-8040FR membrane were purchased and installed in the concentrate RO unit. Since commissioning, the system has been operating stably, with all performance indicators meeting production needs and technical specifications.

A Petroleum and Natural Gas Technology Company in Karamay

A Petroleum Company in Shaanxi Province

The project uses a reverse osmosis (RO) system to treat surface water (from the Yellow River) for use as boiler feed water and process water. In January 2019, KeenSen BW-8040FR membranes were used to replace imported brands. Since then, the system has been operating steadily, meeting the client's expected service life and performance requirements.

A Petroleum Company in Shaanxi Province

A chemical group in Shandong

A chemical group in Shandong uses a reverse osmosis system to treat water from a plain reservoir (surface water) for boiler water replenishment and pure water preparation. The treatment capacity is 25000 m³/d. In November 2023, seven reverse osmosis systems from three enterprises under the group all used Qinsen High-tech BW-8040XLFR anti-pollution membrane elements. Currently, the water production flow rate and water quality of each reverse osmosis system meet the owner's requirements.

A chemical group in Shandong

A chemical company in Shandong

A chemical company in Shandong uses a reverse osmosis system to treat surface water (Yellow River water) for boiler feed water and process water. In August 2022, three reverse osmosis units were replaced with Qinsen High-tech BW-8040LFR anti-pollution membrane elements. The membrane system has been running smoothly since then, and the current water production flow rate and water quality of each reverse osmosis system meet the owner's requirements.

A chemical company in Shandong

A gas-fired thermal power project in Zhejiang

The reverse osmosis (RO) system treats effluent from a wastewater treatment plant - pretreatment through ultrafiltration and reverse osmosis -to provide high-quality boiler make-up water for key process units.Since the project's launched in 2022, all three sets membrane systems across the workshops have been gradually upgraded with KeenSen BW-8040XLFR membrane model. Since the replacement and commissioning of membranes , the RO units have been operating with excellent stability.To date, both the permeate flow and water quality consistently meet the strict requirements of the end user, demonstrating the outstanding performance and reliability of KeenSen membrane.

A gas-fired thermal power project in Zhejiang

A thermal power plant in Zhejiang

<p>This power plant in Shaoxing&nbsp;uses river water as its source,which is treated through pretreatment, reverse osmosis (RO), and EDI to produce demineralized process water for industrial units.The system has a treatment capacity of 100,000 m&sup3;/day.<br /> Since 2021, the plant has adopted membrane products from KeenSen, with nearly 5,000pcs membranes replaced to date. The RO systems have been operating stably, and the current permeate flow and water quality consistently meet the requirements of the&nbsp;owner&#39;s requirements.</p>

A thermal power plant in Zhejiang

A coal chemical enterprise in Anhui

The water source of the reclaimed water reuse system in a coal chemical industrial park in Huaibei, Anhui Province, is a mixture of power plant circulating wastewater and industrial wastewater. The industrial wastewater mainly consists of production and domestic sewage from enterprises in the Huaibei new coal chemical synthetic materials base park. After biological treatment by a newly built wastewater treatment plant, the wastewater meets the Class A standard of the "Discharge Standard for Pollutants from Urban Wastewater Treatment Plants". The overall treatment scale of the reclaimed water reuse system is 20000 m3/d, with a total of 4 reverse osmosis membrane systems. Three of them use KeenSen BW-8040FR membrane elements, while one uses imported  Fouling-Resistant membrane elements for comparison. There is no significant difference in the operation indicators of the membrane systems, which has been well received by the owner.

A coal chemical enterprise in Anhui

A coal chemical enterprise in Hulunbuir

The Hulunbuir Coal Chemical Project, with a processing capacity of 30,000 m³/d, began using KeenSen membrane products in 2018. Product models include BW-8040FR, BW-8040XLFR, and SW-8040MR, used in workshop desalted water systems, reclaimed water systems, concentrated brine systems, and zero-discharge high-pressure reverse osmosis systems, respectively. The excellent performance of KeenSen reverse osmosis membrane elements has reduced the frequency of chemical cleaning, saving operating costs, and the good price-performance ratio has received customer praise.

A coal chemical enterprise in Hulunbuir

A dyeing and printing enterprise in Guangdong

In this water reclamation project, the raw water is textile dyeing wastewater. Through pretreatment and nanofiltration (NF) treatment, the produced water is reused as process water. In October 2022 and February 2023, the NF membrane elements in Train AB and Train CD were replaced respectively, with a total replacement quantity of 720 elements. Since commissioning, the NF system has maintained stable operation, with both produced water flow rate and quality currently meeting the owner's specifications.

A dyeing and printing enterprise in Guangdong

A chemical fiber project in Henan

This water reuse project uses surface water as its feed source. Through pretreatment, the produced water is utilized as process water for chemical fiber production and boiler makeup water. The factory began using KeenSen membrane elements since 2017, with a cumulative replacement quantity of 2,000 units. In 2022, the project continued using KeenSen BW-8040FR fouling-resistant membrane elements. The reverse osmosis system employing KeenSen membrane elements in this water production plant operates stably, currently maintaining a salt rejection rate exceeding 98%. Both the produced water flow rate and quality consistently meet the owner's requirements.

A chemical fiber project in Henan

Desalination water project of a certain steel mill in Sichuan

The desalination project uses river water as its source, with a total treatment capacity of 15000 m³/d. In April 2023, the membrane elements of the two reverse osmosis systems in this project were replaced with KeenSen BW-8040FR Fouling-Resistant membrane elements. Since commissioning, the system has been operating stably, and both water production and Rejection Rate meet project requirements.

Desalination water project of a certain steel mill in Sichuan

Yeast project in Yunnan

2.Surface Water Serves as the Feedwater Source. After treatment via reverse osmosis (RO), the system supplies both process water and boiler feed water to the yeast production facility. In March 2024, the entire RO membrane array was upgraded to KeeSen BW-8040FR elements. Post-installation, the system has maintained stable operation, with product water flux and quality consistently meeting project specifications.

Yeast project in Yunnan

A bio-technology project in Ningxia

Municipal tap water serves as the raw water source for this project. After dual-pass reverse osmosis (RO) treatment, the product water is supplied as boiler feedwater. All RO systems at the facility utilize our proprietary fouling-resistant membrane elements, which consistently meet operational performance requirements. The system has maintained spec-compliant product water flux and quality since its commissioning in February 2023.

A bio-technology project in Ningxia

A waterworks in Ningbo

This region possesses a large area of tidal flats and a high-capacity tidal flat reservoir. Due to its coastal location, the collected water is from the end of the river network and has been subjected to a certain degree of pollution. It is slightly polluted brackish water and does not meet the water source water quality standards. This water plant is the largest domestic water plant using UF+RO dual-membrane deep treatment technology. The first-phase project has a designed daily water supply capacity of 50,000 tons and an actual daily water supply of 40,000 tons. The second-phase expansion project will reach 100,000 tons/day. The treated pure water is blended with ultrafiltration water to meet the national drinking water supply water quality standards.

A waterworks in Ningbo

A water plant in Inner Mongolia

The project primarily uses deep well groundwater as its raw water source. The total water treatment capacity is 30,000 m³/d, employing an advanced "UF+RO dual membrane" deep treatment process to ensure safe, stable, and efficient equipment operation. The treated water quality meets the national standard for "Hygiene Standards for Drinking Water" (GB5749-2006).

A water plant in Inner Mongolia

Wastewater reuse project at a paper mill in Indonesia

A paper mill in Indonesia adopts a dual-membrane process to treat surface water, with a daily capacity of 30,000 tons. The produced water is utilized for paper manufacturing. The system comprises 32 skid-mounted units, each equipped with 336 membrane elements. Approximately 4,368 units of BW-8040FR membrane elements were procured between 2019 and 2020. Currently, the system operates stably, with both water production volume and quality meeting manufacturing requirements.

Wastewater reuse project at a paper mill in Indonesia

Wastewater reuse project of a paper mill in Shandong

A wastewater reuse project at a paper mill in Shandong Province, with a daily treatment capacity of 30,000 tons, adopts the "Biological Treatment + Multi-media Filtration + UF + RO" process. The produced water is recycled for production. The system comprises 8 skid-mounted units (6 operational + 2 standby), utilizing a total of 1,728 membrane elements. All RO membranes are BW-8040LFR model, supplied by KeenSen.

Wastewater reuse project of a paper mill in Shandong

Wastewater reuse project at a certain electronics factory in Dongshan

The project's raw water is wastewater from circuit board cleaning, containing small amounts of copper ions (0.67mg/L), nickel ions (0.038mg/L), and ammonia nitrogen; the water quality is complex. A reverse osmosis membrane process is used. Originally, imported anti-pollution membrane elements were used. In 2018, these were replaced with 180 Qinsen High-Tech reverse osmosis series "BW-8040FR" membrane elements. The treated water quality meets the standard for recycled water (conductivity <250μs/cm).

Wastewater reuse project at a certain electronics factory in Dongshan

A certain electronics factory in Xiamen

The factory uses reverse osmosis to treat tap water, and the reverse osmosis water is further processed by the backend process for the production of electronic components. The factory has been using 560 Qinsen High-tech brackish water BW-8040 membrane elements since 2020. The membrane system has maintained stable performance and has received positive feedback from users.

A certain electronics factory in Xiamen

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