Application Area
Environmental Protection, Papermaking, Textile Printing and Dyeing
Recycled water reuse
Landfill leachate and wastewater treatment for compliant discharge
Wastewater decolorization, COD removal
Related cases
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 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.
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 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.
No. 370, Minghu Road, Donghong Street, Xiangjiang New Area, Hunan,China
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