Abstract

Dineshwar  Prasad  Singh¹ and  Nityanand Singh  Maurya^2*

DOI : http://dx.doi.org/10.13005/ojc/320311

Various methodologies have been adopted for estimation of greenhouse gas (GHG) emission from wastewater treatment systems.  Intergovernmental Panel on Climate Change (IPCC), World Resources Institute and the U.S. Environmental Protection Agency have provided general guidelines for estimation of CH₄ and N₂O based on per capita total waste loads. Bridle Consulting, (2007) has identified five distinguished parts where greenhouse gases are emitted, namely the bio-treatment, sludge treatment, chemical usage, power consumption and biogas production and proposed an empirical static model for estimation of GHGs. Monteith et al., (2005) suggested a rational procedure for estimation of GHGs from municipal treatment plant. A comprehensive mathematical model was proposed by Shahabadi et al., (2009 & 2010) that estimates GHG emission from on-site and off-site activities. Detailed mechanistic models that dynamically describe the behaviour of wastewater treatment plants   have been developed by Ashrafi et al., (2013). The present work is dedicated to briefly describe the various important methodologies and models available for the estimation of GHGs emission from wastewater treatment plant. A comparative study will also be conducted to identify their usefulness and their accuracy in estimation GHGs as extended work of the present study.

Wastewater treatment; greenhouse gas; climate change; static; dynamic model

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