Title: Performance evaluation of sewage treatment plant at a residential building

Authors: J.M. Aishwarya; D. Nilavunesan; P. Baskaralingam; S. Sivanesan

Addresses: Department of Chemical Engineering, AC Tech, Anna University, Chennai 600 025, Tamilnadu, India ' Department of Applied Science and Technology, Anna University, Chennai 600 025, Tamilnadu, India ' Department of Chemistry, Anna University, Chennai 600 025, Tamilnadu, India ' Department of Applied Science and Technology, Anna University, Chennai 600 025, Tamilnadu, India

Abstract: In India, most residential sewage treatment plants are expected to have zero liquid discharge (ZLD). This study has been undertaken to evaluate the performance of 800 KLD residential sewage treatment plant (STP) located at Egattur, Uthandi, Kanchipuram District, Tamilnadu. It is based on fluidized bed aerobic bioreactor (FBR). This plant is designed and constructed with an aim to manage wastewater so as to minimize and remove organic matter, solids, nutrients, disease-causing organisms and other pollutants before it is reused. Sewage samples were collected from four different stages of the sewage treatment plant for 4 months and analysed for water quality parameters. From the analyses it is found that the maximum pH at inlet and outlet was 6.99 and 7.83, alkalinity was 248 and 136 mg/l, chloride was 194.25 and 82.14 mg/l, TSS was 165 and 31 mg/l, TDS 788 and 713 mg/l, BOD was 352.94 and 26.88 mg/l, COD was 463 and 27 mg/l and sulphate was 126.54 and 88.28 mg/l, respectively.

Keywords: BOD; biochemical oxygen demand; COD; chemical oxygen demand; efficiency; FBR; sewage treatment plants; TSS; total suspended solids; performance evaluation; residential buildings; India; fluidized bed reactors; aerobic bioreactors; wastewater treatment; water quality; water pollution.

DOI: 10.1504/IJESD.2016.077389

International Journal of Environment and Sustainable Development, 2016 Vol.15 No.3, pp.326 - 336

Received: 31 Mar 2015
Accepted: 18 Sep 2015
Published online: 29 Jun 2016 *

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