Title of article :
A study on estimation of greenhouse gas emissions from industrial wastewater sector in Iran
Author/Authors :
Nayeb, Hossein Department of Environmental Engineering - Faculty of Water and Environment - Shahid Beheshti University, Tehran, Iran , Mirabi, Maryam Department of Environmental Engineering - Faculty of Water and Environment - Shahid Beheshti University, Tehran, Iran , Motiee, Homayoon Department of Environmental Engineering - Faculty of Water and Environment - Shahid Beheshti University, Tehran, Iran , Alighardashi, Abolghasem Department of Environmental Engineering - Faculty of Water and Environment - Shahid Beheshti University, Tehran, Iran , Khoshgard, Ahmad Department of Chemical Engineering - Faculty of Engineering - Islamic Azad University South Tehran Branch, Tehran, Iran
Abstract :
Industrial activities are one of the most important emission sources of greenhouse
gases at a global level. The process of production, transportation, electricity
consumption, and industrial wastewater are the four major components in
producing greenhouse gases. Industrial wastewater management (collection,
treatment, and disposal) results in direct emission of greenhouse gases (including
carbon dioxide, methane, and nitrous oxide). Also, energy consumption in the
wastewater treatment process causes indirect carbon dioxide emissions. The
present study aimed to estimate the contribution of industrial wastewater treatment
plants in Iran from this emission, in addition to identifying sources of greenhouse
gas emissions in the industrial wastewater treatment plant and estimating
greenhouse gas emissions from the industrial wastewater sector in Iran. In this
research, the emission calculations were conducted by using the methodology of
Intergovernmental Panel on Climate Change (IPCC) guidelines for calculating
greenhouse gases emission. Based on the estimations performed in this study,
1,305.98 kt of CH4 were emitted directly from wastewater in 2017 in the entire
industrial wastewater sector. Further, the results indicated that industrial
wastewater treatment plants in Iran’s industrial parks generate 46.53 kt of CH4
directly and 259.5 kt of CO2 indirectly. According to the studies, the food industry,
especially the industries involved in processing agricultural products (with 48.74 %
of total methane emissions) has the highest greenhouse gas emissions in the
country, followed by the paper production industry (with 27.46 % of total methane
emissions) in the second place. One of the best strategies for reducing greenhouse
gas emissions in industrial wastewater treatment plants is energy production from
methane produced in large treatment plants and implementing necessary
amendments in production processes to decrease wastewater production.
Keywords :
Industrial wastewater treatment plants , Greenhouse gases , Global warming , Methane emission
Journal title :
Journal of Applied Research in Water and Wastewater (JARWW)
