THE BASIC PRINCIPLES OF STATIC MIXER FOR WATER TREATMENT

For that sewage sludge in the sewage treatment plant, the commonest sludge consists of Major and secondary sludge, exactly where the first sludge is the sludge gathered from the first clarifier, as well as secondary sludge could be the surplus-activated sludge (Nielsen and Stefanakis 2020). As for that onsite sanitation system, the sludge is referr