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Nutrients removal enhancement using a modified rotating activated bacillus contactor (RABC) process

수정 RABC 공정을 이용한 영양염류 제거능 제고에 관한 연구

Kim, Sunhee;Kim, Donghwan;Jang, Giung;Kim, Eung-Ho
김선희;김동환;장기웅;김응호

  • Received : 2015.11.09
  • Accepted : 2016.02.05
  • Published : 2016.02.28

Abstract

This study was performed to develop a new process technology for advanced wastewater treatment using a modified Rotating Activated Bacillus Contactor (RABC) process that adopts anoxic-oxic suspended biomass tanks to enhance nutrients removal. A modified lab-scale RABC process was applied to examine its applicability and to obtain the design factors for the optimum operation of the system. The modified RABC process showed a little more stable and high nutrients removal efficiency than the prototype RABC process: about 70% of nitrogen and 55% of phosphorous removal when the low organic loading (influent COD 200mg/L). However, the processing efficiency of nutrients removal rates was enhanced to great extent when high organic loading: nitrogen 90% and phosphorous 85% (influent COD 500mg/L). High organic loading stimulated extremely good biomass attachment on the reticular carrier RABC stage and the excellent nutrients removal, nevertheless with almost no offensive odor.

Keywords

Advanced wastewater treatment;Bacillus sp.;Nutrients removal;RABC

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Acknowledgement

Supported by : 홍익대학교