Sewage Treatment and Management in Goa, India: A Case Study

Singh, Anju; Kazmi, A.A.; Starkl, Markus; Bawa, I.T.; Khale, P.; Patil, Vikrant; Nimkar, Indrayani; Naik, Mayuri

doi:10.1007/s12403-015-0183-5

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…It can be inferred that the domestic wastewater used in this study was low‐strength wastewater. Similar values were also reported elsewhere (Alagha et al, 2020; Singh et al, 2015).…”

Section: Resultssupporting

confidence: 92%

Domestic wastewater treatment in a coupled sequential batch reactor‐electrochemical reactor process

Akula

Gaddam

Damaraju

et al. 2020

Water Environment Research

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The effectiveness of a sequenced biological–physicochemical reactor system for treating sewage was studied. The biological degradation was conducted in a Sequential Batch Reactor, which had innovative features for simplifying the operation and maintenance of the reactor. The reactor was operated at 4, 6, 8, and 12 hr cycle. Up to 82% removal of Chemical Oxygen Demand (COD), 50% removal of Dissolved Organic Carbon (DOC), 45% removal of Total Nitrogen (TN), and 45% removal of Total Phosphorus (TP) were achieved. The treated effluent was further polished in a continuous‐flow bipolar‐mode electrochemical reactor to remove additional recalcitrant organic matter from the wastewater. The process parameters were optimized using Response Surface Methodology. At the optimum condition (pH = 8.7; Current = 1.0; reaction time = 9.0), up to 90% removal of COD, 67% removal of DOC, 61% removal of TN, and 99.9% removal of TP were achieved in the coupled system. Micropollutants belonging to Pharmaceutically Active Compounds, pesticides, etc., were significantly removed. The coupled system completely removed Salmonella, Pseudomonas, and Staphylococcus. However, coliforms were detected at the outlet samples. A UV or ozone disinfection treatment is recommended for the safe reuse of the treated water for nonpotable purposes. Practioner points Sequential sequential batch reactor‐electrochemical reactor process (SBR‐ECR) technology is effective for micropollutant removal from sewage. The coupled SBR‐ECR system requires less footprint compared to conventional biological systems for wastewater treatment. Carbon material balance study revealed that more than 60% of carbon escapes from wastewater in the form of CO2

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“…It can be inferred that the domestic wastewater used in this study was low‐strength wastewater. Similar values were also reported elsewhere (Alagha et al, 2020; Singh et al, 2015).…”

Section: Resultssupporting

confidence: 92%

Domestic wastewater treatment in a coupled sequential batch reactor‐electrochemical reactor process

Akula

Gaddam

Damaraju

et al. 2020

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…The inorganic constituents include large concentrations of sodium, calcium, potassium, magnesium, chlorine, sulfur, phosphate, bicarbonate, ammonium salts and heavy metals (Chen et al 2018: Horan 1990Lim et al 2011). In order to minimize the environmental and health hazards (Singh et al 2015;Jafarinejad 2017;Khudair and Jasim 2017;Kominko et al 2018), these constituents need to be brought down to permissible limits. Therefore, removal of the nutrients, organic contaminants and pathogens from wastewater is of paramount importance in order to prevent eutrophication, oxygen depletion and toxicity (Najar and Khan 2011Najar 2017;Ajala et al 2018).…”

Section: Introductionmentioning

confidence: 99%