ASSESSMENT OF SLUDGE MANAGEMENT AT THU DAU MOT WASTEWATER TREATMENT ENTERPRISE

Abstract

Research and assessment of the management of sludge in the Thu Dau Mot wastewater treatment plant. The composition of the sludge depends on the composition of the wastewater, the wastewater treatment process and the sludge treatment process. The most common non-toxic organic compounds include materials of plant and animal origin such as proteins, amino acids, sugars, fats ... compounds containing N, P ... Toxic organic compounds include compounds PHA (Poly-nuclear aromatic hydrocarbons), alkyl phenols, polychlorinated biphenyls (PSBs) organochlorine homestead, phenols, chloro – benzenes… Heavy metals such as: Zn, Pb, Cu, Cd, Ni, Cr, Hg, As… (from 1ppm to 100ppm). Some of these compounds can be toxic to humans and animals. Therefore, it is necessary to control the concentration of heavy metals in the sludge before disposal or reuse. Harmful microorganisms such as pathogenic bacteria, viruses and protozoa together with parasitic helminths can increase the potential harm to human, animal and plant health. Inorganic compounds such as silicates, aluminates, calcium and magnesium compounds.