The stabilized sludge is disinfected, and lime is added, transforming it into a useful material, rich in plant nutrients called biosolids. The Malabar Sewage Treatment Plant alone produces 40,000 tons of biosolids yearly.
एकट्या मॅलबार सांडपाणी शुद्धीकरण कारखान्यात वर्षाला ४०,००० टन बायोसॉलिड तयार होते.