biological filtration system

Browsing: biological filtration system

In 2010, Shanghai turned a polluted industrial brownfield into Houtan Park; its wetlands now clean up to 634,000 gallons of river water a day

Science August 9, 2026

A similar vantage point pre-park construction and a similar vantage point post-park construction (Source: Kongjian Yu) In 2010, Shanghai transformed…