Hangzhou Zhongsheng Environmental Engineering Co., Ltd. (Zhongsheng Environmental) is a specialist wastewater treatment company integrating technology R&D, process design, equipment manufacturing, on-site installation, commissioning, and long-term O&M support under one roof.
Headquartered in Hangzhou — one of China's largest environmental equipment manufacturing hubs — we have spent over 15 years engineering reliable, cost-effective solutions for clients across municipal, industrial, and commercial sectors worldwide.
From single equipment supply to complete turnkey EPC contracts — we cover every stage of the project lifecycle.
Every project starts with a site-specific process study. We select the optimal biological, physical, and chemical treatment sequence for your wastewater characteristics and discharge targets.
Our own production facility handles steel fabrication, membrane assembly, electrical panel integration and factory acceptance testing — giving you quality control from the first weld to final commissioning.
Equipment and turnkey solutions exported to Europe, the Americas, Southeast Asia, the Middle East, and Africa. We manage documentation, certification, logistics, and commissioning support internationally.
Our relationship doesn't end at handover. We provide preventive maintenance programmes, remote monitoring integration, operator training, and rapid-response spare parts supply throughout equipment life.
Engineered for performance across municipal, industrial, and commercial wastewater treatment applications.

Underground WSZ-series packaged plants for communities, hospitals & scenic areas
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Membrane bioreactors delivering Class 1A effluent quality for reuse applications
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High-efficiency dissolved air flotation for food, textile, and industrial effluents
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Integrated filtration, RO, and softening systems for process water and drinking water
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PAC, PAM, acid/alkali and nutrient dosing skids with full PLC automation
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Chlorine dioxide generators, sodium hypochlorite systems and UV disinfection units
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"Quality First, Service Supreme — we pursue excellence through rigorous engineering and continuous innovation."— Zhongsheng Environmental Engineering, Company Mission
Share your flow rate, wastewater characteristics, and discharge targets. Our engineering team responds within 24 hours with an initial process recommendation and budget estimate.