Shanghai Tongjie Environmental Protection Technology Co.,Ltd.

Become the best water treatment manufacturer

10+

Years Experience

99%

Client Satisfaction

50+

Countries Served

Shanghai Tongjie Environmental Technology Co., Ltd., a trusted name in industrial wastewater treatment and membrane separation technology, has successfully commissioned a customized STRO (Spiral Tube Reverse Osmosis) pharmaceutical wastewater treatment system for WuXi AppTec's manufacturing site in Singapore.

Designed for a treatment capacity of 4 tons per hour and a water recovery rate of 45%, the system addresses one of the most challenging industrial effluent profiles in the pharmaceutical sector. The raw wastewater features COD levels up to 500 mg/L, TDS concentrations reaching 400 mg/L, strong alkalinity (pH 13), and high chloride content — conditions that frequently cause fouling and scaling in conventional reverse osmosis systems.

Tongjie Environmental's STRO membrane technology offers a distinct advantage: its patented open-channel, low-fouling flow path design minimizes membrane blockage and enables stable, long-term operation even under extreme water quality fluctuations. This makes it an ideal solution for pharmaceutical wastewater reuse, zero-liquid-discharge (ZLD) pretreatment, and high-salinity industrial water recycling applications.

"We are proud to support WuXi AppTec's sustainability goals with a robust, energy-efficient treatment system that reduces liquid waste volume while maximizing water recovery," said a spokesperson for Tongjie Environmental. "This project not only validates our STRO technology in a rigorous regulatory environment like Singapore but also strengthens our presence in the fast-growing Southeast Asian water treatment market."

With over a decade of R&D and engineering experience, Tongjie Environmental specializes in STRO/DTRO membrane systems, landfill leachate treatment, and industrial zero-discharge solutions. The company has delivered hundreds of projects across China and export markets, including Southeast Asia, the Middle East, and South America.

This latest delivery reinforces Tongjie Environmental's reputation as a reliable partner for high-end pharmaceutical and chemical wastewater treatment, and positions the company for further global expansion as industries increasingly adopt water conservation and circular economy practices.

Our Service

Shanghai Tongjie Environmental Technology Co., Ltd. is a high-tech enterprise focused on the R&D, design, manufacturing, and after-sales support of advanced membrane separation systems. The company's core technologies include STRO, DTRO, NF, and UF membrane processes, serving industries such as pharmaceuticals, chemicals, landfill leachate, and power generation.

History

Shanghai Tongjie Environmental Protection Technology Co., Ltd. was established in 2010, recognized as a national high-tech enterprise, Shanghai specialized and special new enterprise. Tongjie is a technology-based enterprise integrating technology research and development, design, manufacturing, engineering implementation, operation and service based on water treatment process. After more than ten years of development, Zhongjie environmental Protection has won the trust of its customers with its technical strength, management level and quality of service. Have the environmental protection contracting level II qualification, mechanical and electrical installation contracting level II qualification. The company has been focusing on the research and development of core technologies in the field of water treatment for a long time, and has successively obtained 2 invention patents, more than 10 national utility models, patents and software copyright, quality system certification, environmental management system certification, high-tech enterprises, membrane Association member certification, landfill leachate association member and many other certifications. With special film application as the core technology, relying on more than ten years of equipment manufacturing experience and advantages, it can provide economical and efficient customized, modular equipment and after-sales service according to the project needs; excellent manufacturing equipment, complete testing means, and the products strictly implement ISO9001 quality system standards.

Main Market:

North America, South America, Worldwide, Western Europe, Eastern Europe, Eastern Asia, Southeast Asia, Middle East

Business Type:

Distributor/Wholesaler

Brands:

STJEPT

No. of Employees:

50~100

Annual Sales:

$1000000-$10000000

Year Established:

2010

Export P.C:

60% - 70%

Customers Served:

CNOOC

Customized service:

OEM & ODM