Denitrification of Wastewater Using Sludge and Methanol as a Carbon Source
Journal Title: Universal Journal of Environmental Research and Technology - Year 2014, Vol 4, Issue 3
Abstract
External carbon sources can enhance denitrification rates and thus improve nitrogen removal in wastewater treatment plants. When external carbon sources are added, no severe effect could be observed from an operational point of view. Denitrification is a process in which the oxidized nitrogen substances, i.e. nitrates and nitrites are reduced to nitrogen gas, such as N2O and N2, when a proton donor (energy source) is available. Nitrogen in groundwater results from human excreta, ground garbage and industrial effluents, particularly from food processing plants. The addition of external carbon source helps in increasing denitrification rates and enhances the nitrogen removal. In most biological denitrification systems, the nitrate polluted wastewater (e.g. domestic sewage) contains sufficient carbon source to provide the energy source for the conversion of nitrate to nitrogen gas by the denitrifying bacteria. The groundwater, in which the nitrate contents may be as high as 100 mg/L with low dissolved carbon content, an additional proton acceptor is required. This project work discusses the successful implementation of methanol as carbon sources for Wastewater Treatment Facility utilizing upflow deep bed continuous filter. This work will describe the methodology employed to implement methanol carbon sources, the modifications required to utilize methanol carbon sources in deep bed filter technologies.
Authors and Affiliations
Dholam Sujit S. , Attarde S. B. , Wagh N. D. and Ingale S. T.
Keywords
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