KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Removal of Ammonia Nitrogen and Organics from Piggery Wastewater Using BACC Process-II. Effect of COD/N on Removal of NItrogen and Organics

BACC를 이용한 축산폐수의 암모니아성 질소 및 유기물의 제거 II. COD/N비가 질소 및 유기물 제거에 미치는 영향

  • 성기달 ((주)보명환경산업) ;
  • 류원률 (영남대학교 응용화학공학부) ;
  • 김인환 (대구보건대학 보건환경과) ;
  • 조무환 (영남대학교 응용화학공학부)
  • Published : 2001.04.01
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Abstract

To treat piggery wastewater containing refractory compounds including nitrogen, physical treatments using zeolite and biological processes were investigated. In biogical treatment, the removal efficiencies of organics and nitrogen in bioreador using BACC (Biological Activated Carbon Cartridge) media filled with granule activated carbon were examined. The best removal efficiencies achieved for TKN and COD(sub)cr were 82% and 53% respectively, when zeolite dosage was 300 g/L. Specific nitrogen removal ability was 3.2 mg/g at a zeolite dosage of 50 g/L, whereas specific nitrogen removal ability was 1.8 mg/g at a zeolite dosage of 300 g/L. The increased of C/N ratio resulting from the removal of nitrogen using zeolite led to an increase in removal efficiency of organics. As C/N ratio was increased to 2.0, 2.44 and 6.58 at a HRT of 48 hours in a BACC bioreactor, removal efficiencies of COD(sub)cr were increased to 53.5%, 57.4% and 80.6%. The removal efficiency of wastewater using a zeolite dosage of 399 g/L was increased by 27.1% compared to that of control treatment.

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References

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