Prospects for a self-sustainable sewage treatment system: A case study on full-scale UASB system in India's Yamuna River Basin

Nobuyuki Sato, Tsutomu Okubo, Takashi Onodera, Akiyoshi Ohashi, Hideki Harada

Research output: Contribution to journalArticlepeer-review

83 Citations (Scopus)

Abstract

The government of India decided to launch a project to implement 16 full-scale Upflow Anaerobic Sludge Blanket (UASB) reactors (with a total capacity of 598,000 m3/d) in the Yamuna River basin under its Yamuna Action Plan (YAP). A polishing pond called the Final Polishing Unit (FPU) was utilized for post-treatment. This paper evaluates the sewage treatment efficiency of the combined system of full-scale UASB reactors and polishing ponds under Indian climatic conditions. Results have shown that the effluent from the sewage treatment plants (STPs) investigated failed to comply with applicable discharge standards in terms of BOD, SS, and fecal coliform removal. Therefore, it is proposed that such proper operation and maintenance as removing excess sludge and scum be conducted in order to increase treatment efficiency. Moreover, trained and experienced workers are also required to operate and maintain the systems, along with a scientific approach.

Original languageEnglish
Pages (from-to)198-207
Number of pages10
JournalJournal of Environmental Management
Volume80
Issue number3
DOIs
Publication statusPublished - 2006 Aug 1

Keywords

  • Low cost
  • Operation and maintenance
  • Polishing pond
  • Sewage treatment
  • UASB

ASJC Scopus subject areas

  • Environmental Engineering
  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law

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