Performance comparison of a pilot-scale UASB and DHS system and activated sludge process for the treatment of municipal wastewater

Madan Tandukar, A. Ohashi, H. Harada

研究成果: Article査読

131 被引用数 (Scopus)

抄録

This study compares the performance of a pilot-scale combination of UASB and DHS system to that of activated sludge process (ASP) for the treatment of municipal sewage. Both systems were operated in parallel with the same sewage as influent. The study was conducted for more than 300 days, which revealed that organic removal efficiency of UASB + DHS system was comparable to that of ASP. Unfiltered BOD removal by both systems was more than 90%. However, UASB + DHS system outperformed ASP for pathogen removal. In addition, volume of excess sludge production from UASB + DHS was 15 times smaller than that from ASP. Moreover, unlike ASP, there is no requirement of aeration for the operation of UASB + DHS system, which makes it an economical treatment system. Considering the above observations, it was concluded that UASB + DHS system can be a cost-effective and viable option for the treatment of municipal sewage over ASP, especially for low-income countries.

本文言語English
ページ(範囲)2697-2705
ページ数9
ジャーナルWater Research
41
12
DOI
出版ステータスPublished - 2007 6月

ASJC Scopus subject areas

  • 生態モデリング
  • 水の科学と技術
  • 廃棄物管理と処理
  • 汚染

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