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Treatment of municipal wastewater using laterite-based constructed soil filter

DSpace at IIT Bombay

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Title Treatment of municipal wastewater using laterite-based constructed soil filter
 
Creator KADAM, AVINASH M
OZA, GOLDIE H
NEMADE, PRAVIN D
SHANKAR, HARIHARAN S
 
Subject air filters
biochemical oxygen demand
dissolution
dissolved oxygen
oxidation
porous materials
 
Description The present study reports the performance of municipal wastewater treatment plant located at Mumbai, India using laterite soil-based constructed soil filter (CSF) system monitored over 17 months. The results indicated increase in dissolved oxygen levels and reduction of chemical oxygen demand (COD) from 135.4 ± 79.4 to 28.8 ± 19.5 mg/L with first order rate constant (Kd) of 0.23 h−1. The bio-chemical oxygen demand (BOD) reduced from 92 to less than 10 mg/L with Kd of 0.35 h−1; suspended solids reduction from mean 188 to 12–18 mg/L and turbidity reduction from mean 140 to 5.0 ± 3.4 NTU. The seasonal data showed 3.2 ± 0.9, 2.8 ± 0.4 and 2.85 ± 1.0 log order removal for total coliform, fecal coliform and heterotrophic plate count, respectively. The unique features of the system include a single unit, low HRT, high hydraulic loading, no chemicals, pretreatment and mechanical aeration, odor free, low energy requirement (0.04 kWh/m3), and green ambience.
 
Publisher Elsevier
 
Date 2009-10-06T04:20:21Z
2011-11-25T15:45:42Z
2011-12-26T13:05:03Z
2011-12-27T05:51:00Z
2009-10-06T04:20:21Z
2011-11-25T15:45:42Z
2011-12-26T13:05:03Z
2011-12-27T05:51:00Z
2009
 
Type Article
 
Identifier Ecological Engineering 35(7), 1051-1061
0925-8574
http://dx.doi.org/10.1016/j.ecoleng.2009.03.008
http://hdl.handle.net/10054/1701
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1701
 
Language en