Sewage Treatment Plant - Huayu

A sewage treatment plant (STP) is a critical infrastructure that processes domestic, industrial, and stormwater sewage to remove pollutants before discharge or reuse. It typically employs physical, chemical, and biological processes: initial screening and sedimentation remove solid wastes, biological treatment breaks down organic matter via microorganisms, and final disinfection eliminates harmful pathogens. The treated water, meeting environmental standards, is released into water bodies or repurposed for irrigation and industrial use, while sludge is further treated for safe disposal or recycling. STPs play a vital role in protecting water ecosystems and public health by preventing water pollution.