A Study by Proposal of Efficiency Increase for a Full-scale Wastewater Reclamation Facility using a Biofilter Packed with Granular Sulfur

하수처리수 재이용을 위한 실규모 입상황 생물막여과 시설의 효율증대 방안에 관한 연구

  • Received : 2009.12.07
  • Accepted : 2010.02.12
  • Published : 2010.02.15

Abstract

This study was performed to increase the removal efficiency of the biofilter packed with granular sulfur in municipal wastewater reclamation facility. Constituent units were influent water tank, denitrification tank, BOD reduction tank and outlet. And, the major operation factor is a biofilter packed with submerged granular sulfur. Actual wastewater and synthetic wastewater were used as influent wastewater. Experimental condition was divided into two phases according to the amount of a phosphorus coagulant. Total phosphorus removal efficiency was insignificant at mode I that phosphorus coagulant was not injected. The average influent and effluent total phosphorus concentrations at mode II were 0.5 ~ 1.0 mg/L and 0.27 mg/L, respectively. As for COD and BOD effluent concentrations, COD was 3.0 mg/L and BOD was 1.0 mg/L. Additionally, nitrogen removal rates were high at low influent DO concentration. In conclusion, a new process, biofilter packed with granular sulfur is expected to treat high-rate nitrogen wastewater and expected to be utilized as an alternative of technological innovation for the nitrogen treatment.

Acknowledgement

Supported by : 인하대학교

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