TOP GUIDELINES OF PLOW BLADE SCRAPER CLARIFIER

For the sewage sludge from the sewage treatment plant, the most common sludge involves Principal and secondary sludge, in which the main sludge is definitely the sludge gathered from the principal clarifier, as well as the secondary sludge would be the surplus-activated sludge (Nielsen and Stefanakis 2020). As for that onsite sanitation system, the