Jan 13, 2026 – Driven by tightening global environmental regulations and booming infrastructure needs in emerging markets, China's sewage purification tanks have witnessed a robust export growth, becoming a key player in the global water treatment equipment trade. Latest industry data shows that China ranks among the top three exporters of sewage treatment equipment worldwide, with shipments to over 58 countries and regions in 2025.
The surging demand is fueled by multiple factors. Globally, urbanization rates have exceeded 65%, while industrial wastewater discharge has risen by 12% year-on-year, pushing the global sewage treatment equipment market to a record high. Southeast Asia and Africa have emerged as the fastest-growing target markets, as governments in these regions step up investments in water pollution control to meet upgraded emission standards .
Chinese-manufactured sewage purification tanks stand out for their advanced technology and cost-effectiveness. Integrated designs, combining MBBR (Moving Bed Biofilm Reactor) and AO (Anaerobic-Oxic) processes, enable the tanks to achieve 80%-95% COD removal rate and over 90% ammonia nitrogen removal rate, meeting international first-class discharge standards. Equipped with intelligent IoT monitoring systems, the tanks support remote operation and predictive maintenance, reducing operational costs by 30%-40% compared to traditional equipment.
Compliance with international standards is a core competitive edge. Exported tanks have obtained CE certification for the European market, EPA approval for the U.S., and ISO 14001 environmental management system certification. Manufacturers adopt compression-molded SMC materials, ensuring durability even in harsh climatic conditions, with a 20-year warranty for tank structures.
Logistics and localization strategies further boost export growth. Most tanks are shipped via sea with shockproof and moisture-proof packaging, and manufacturers collaborate with local agents to provide on-site installation and after-sales service. "We have expanded our supply capacity to 10 sets per month, and customized solutions for industrial, municipal and emergency scenarios are well-received," said a representative of a leading exporter.
With the global market expected to grow at a CAGR of over 6% by 2030, Chinese exporters are focusing on technological innovation, including resource recovery functions and low-carbon designs, to seize more opportunities in the global circular economy.
