treatment of pulp and paper mill wastewater in belgium

treatment of pulp and paper mill wastewater in belgium
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  • How does the pulp & paper industry use water?
  • The pulp and paper industry consumes enormous amounts of water and natural resources and is also one of the largest effluents generators. Before the 1970s, wastewaters from the pulp and paper mills were normally discharged directly to the rivers or lakes, without any treatment or even a rough primary treatment.
  • What percentage of pulping plants use biological effluent treatment systems?
  • Sixty to seventy-five per cent of all the biological effluent treatment plants within the pulp and paper industry use this kind of treatment system. This chapter reviews the current pulping technologies at mills and compares the chemical composition and biological treatment of wastewater between softwood and hardwood bleached pulps. 1. Introduction
  • What are the treatment processes for pulp and paper industrial effluents?
  • Various treatment processes for pulp and paper industrial effluents, including aerobic, anaerobic, photo-catalysis, electrochemical, ozonation, coagulation–flocculation and adsorption treatment processes have been presented.
  • What is a pulp mill wastewater treatment?
  • 7. Kraft pulping: wastewater treatment The typical pulp mill wastewater treatment should include primary treatment (neutralization, screening or sedimentation), principally to remove suspended solids, and biological/secondary treatment.