water treatment chemicals mining sludge dewatering in britain

water treatment chemicals mining sludge dewatering in britain
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  • Does mechanical dewatering reduce sludge water content?
  • However, due to the hydrophilicity and negative surface charge of extracellular polymer substances (EPS), conventional mechanical dewatering methods merely achieve a reduction in sludge water content up to 80% (G. Li et al., 2025a; Zhang et al., 2025a ). While there exist obligatory criteria for the water content in subsequent disposal.
  • Who invented sludge dewatering agents?
  • The USA pioneered the fundamental research of sludge dewatering agents (Novak and Montgomery, 1975) and kept pace in the applied research.
  • Which country is best for sludge dewatering?
  • With respect to countries, Japan paid more attention to applied research, whereas the USA performed well both in fundamental research and applied research.China has high quantity in both papers and patents in agents for sludge dewatering.
  • Can sludge be used in mine water treatment?
  • Reusing sludge in the mine water treatment might be a promising method because of its capacity to immobilize toxic elements, but requires caution due to potential release of other contaminants.