IJEP 41(6): 686-692 : Vol. 41 Issue. 6 (June 2021)
1. GIET University, Gunupur – 765 022, Odisha, India
2. National Institute of Technology, Rourkela – 769 001, Odisha, India
Abstract
In the present scenario, the consumption of milk and its products is increasing day to day due to the increase in population for which a number of dairy industry is growing every year. It requires a huge amount of water for the processing purpose which produces plenty of wastewater containing a number of pollutants, such as organics, suspended solids, total dissolved solids, sulphur, phosphorous and nitrogen, discharged in the open field. It becomes a challenge to get the usable water by removing these pollutants from this wastewater and make it fit for cultivation. The process for the treatment of wastewater generated from the milk processing plant has been described and discussed. Characterization of dairy wastewater with respect to various inorganic and organic constituents presents therein and the consequent harmful health effects have been highlighted. Different treatment techniques for environmentally acceptable disposal of wastewater have been presented. A few recent techniques being developed for the treatment have also been highlighted.
Keywords
Dairy wastewater, Physico-chemical treatment, Biological treatment, Advanced treatment
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