global sales industrial composting machines sewage sludge
Is Your Compost Made of Sewage Sludge? | Planet Natural
Jan 14, 2013 · Sludge, the kind that ends up in a number of brands of commercial and municipal compost, the kind spread on farm crops, is the end product of sewage treatment, the process by which everything flushed, poured and dumped into the sewage system by home dwellers, businesses and industry is separated into liquid and solid components.
Global Wastewater and Sludge Production, Treatment and Use
Jan 1, 2015 · The global extent...