Hospital sewage is different from ordinary domestic sewage, as its composition is complex and harmful. Wastewater not only contains a large number of pathogenic microorganisms such as bacteria, viruses, and parasite eggs brought by patient excrement a…

Activated sludge process is a widely used biological treatment method for sewage treatment. The following is an introduction to its principles and operating procedures:principleMicrobial metabolism: Activated sludge contains a large number of microorg…