Catalytic Performance of Cow-Dung Sludge in Water Treatment Mitigation and Conversion of Ammonia Nitrogen into Nitrate

Lokesh Kumar, Jaigopal Sharma and Raminder Kaur
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Lokesh Kumar: Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
Jaigopal Sharma: Department of Biotechnology, Delhi Technological University, Delhi 110042, India
Raminder Kaur: Department of Polymer Science and Chemical Technology, Delhi Technological University, Delhi 110042, India

Sustainability, 2022, vol. 14, issue 4, 1-11

Abstract: The present research study was performed to find a solution for the mitigation of ammonia nitrogen in municipally treated sewage effluent (MTSE) using two natural bio-resources. One was composted cow-dung sludge that had catalytic enzymes and nitrifying bacterial mass, and the second was Yucca extract (a desert plant). MTSE samples put in one-liter beakers/jars having initial ammonia nitrogen content of 34.78 mg/L, when treated with 0.0 g/L (control Sample), 1 g/L, 5 g/L (cowdung) and 10 mg/L, 50 mg/L ( Yucca extract), respectively, reported depletion of ammonia nitrogen to about 0.00 mg/L ammonia (NH 3 ) as N. It (NH 3 ) transformed to 17.8, 0.18, 0.09, 18.65, and 18.85 mg/L nitrite asN. Ammonia converted to 21.8, 110.1, 133.5, 20.5, 20.8 mg/L nitrate asNO 3, respectively. After eight days of treatment, the jar test apparatus reported the results at 35 rounds per minute (RPM) and a temperature of 32 °C. It was found that digested cowdung acted catalytically in eliminating the ammonia nitrogen by converting it to nitrate in a short period of nearly eight days, leading to almost 100% ammonia conversion.

Keywords: municipal sewage; biological treatment; ammonia nitrogen; cow-dung sludge; yucca extract (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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