Assessment of Reduction in Sewage Sludge Using Fluidized Bed Biological Carrier

SeongIl Chun; Kanghee Cho; Kyunghoon Cheong

doi:10.32390/ksmer.2021.58.2.100

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2021 Vol.58, Issue 2 Preview Page Next Page

Research Paper

Assessment of Reduction in Sewage Sludge Using Fluidized Bed Biological Carrier 유동상 생물 담체를 이용한 하수 슬러지 저감 가능성에 관한 연구

30 April 2021. pp. 100-106

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Abstract

To solve the problem of sewage sludge discharge into the ocean, reduction in the sewage sludge discharge in the reaction system (anoxic, aeration, and cohesion-precipitation) using a fluid bed biological carrier (FBBC) was investigated. After operation of a 30 m³ reaction system for 5 months, the FBBC adhesion bacteria showed high distribution of denitrification-organic oxidizing bacteria (anoxic reactor) and nitrification-organic oxidizing bacteria (aeration reactor). Additionally, the water discharged from the system was within the emission standards. Furthermore, no difference in the ammonia nitrogen (NH₃-N) removal efficiency was observed according to the sewage temperature since the C/N ratio was relatively high under low sewage temperature conditions.

Keywords

Fluid bed biological carrier

attached bacteria

sewage temperature

sewage sludge

C/N ratio

하수슬러지의 해양투기 배출규제에 대한 대체 처리방안으로, 유동상 생물 담체(FBBC)를 이용한 반응 시스템(무산소조 + 포기조 + 응집-침전조)의 하수 슬러지 저감 가능성을 조사하였다. 30m³ 크기의 반응 시스템을 5개월 동안 운영한 결과, FBBC의 부착 미생물은 탈질-유기 산화 미생물(무산소조), 질산화-유기 산화 미생물(포기조)의 분포도가 높게 나타났다. 시스템의 방류수는 관련 법적 기준에 적합하였으며, 하수 온도에 따른 암모니아성 질소 제거 효율의 차이가 나지 않았다. 이는 C/N의 비율이 저수온조건에서 상대적으로 높게 나타났기 때문이다.

키워드

유동상 생물 담체

부착미생물

하수 온도

하수 슬러지

C/N 비

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Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 58
No :2
Pages :100-106
Received Date : 2021-04-05
Revised Date : 2021-04-28
Accepted Date : 2021-04-28
DOI :https://doi.org/10.32390/ksmer.2021.58.2.100

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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