Environmental Sciences Bulletin of The Korean Environmental Sciences Society

The Korean Environmental Sciences Society (한국환경과학회)
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Development of Optimal Treatment Process Train of Leachate from Industrial Waste Disposal Site

  • Han Gee Baek (Department of Environmental Engineering, Sorabol College) ;
  • Choi Kwang Soo (Department of Environmental Engineering, Pusan National University) ;
  • Min Man Gi (Department of Environmental Engineering, Sorabol College) ;
  • Han Young Hwan (Department of Biology, Dongguk University) ;
  • Im Jung Hoon (Department of Environmental Engineering, Pusan National University) ;
  • Lee Hae Goon (Department of Environmental Engineering, Pusan National University) ;
  • Choi Myung Won (Department of Environmental Engineering, Pusan National University) ;
  • Kim Chang Won (Department of Environmental Engineering, Pusan National University) ;
  • Park Dong Keun (Department of Environmental Engineering, Dongseo University)
  • Published : 1998.12.01
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Abstract

Train of chemical and biological processes was investigated to treat leachate from industrial waste landfill. Organics and nitrogen concentrations of landfill leachate studied in this research were high and their BOD/COD ratio was 0.3. Biological process should be combined with chemical process for optimum treatment of leachate. PAC(Polyaluminium chloride) was the best coagulant among three chemicals tested, and the optimum condition of PAC coagulation was pH 6 and 1,250 mg/L of dosage. When SBR was operated for simultaneous removal of organics and nitrogen, removal efficiency of COD and T-N reached over $82\%,\;71\%,$ respectively and time distribution of 2/4/2/1 was most effective for one cycle of anoxic/aerobic/anoxic/aerobic.

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