Journal
URBAN WATER JOURNAL
Volume 17, Issue 10, Pages 860-870Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/1573062X.2020.1836238
Keywords
Organic pollutants; paper mill wastewater; endocrine disrupting chemical; Phaseolus aureus; Tubifix tubifix
Categories
Funding
- Department of Biotechnology New Delhi, University Grant Commission, New Delhi [BT/PR18896/BCE/8/1372/2016]
- NFPwD [01-01/2019-Sch.]
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The paper industry wastewater even after bio-treatment at industrial scale is a major source of aquatic and soil pollution due to various unknown compounds. Hence, the study has focused on the detection of residual organic pollutants from the bleached and unbleached paper mill wastewater and both sources showed endocrine-disrupting compounds. The toxicity test with Phaseolus aureus seed germination showed inhibition of seed germination and alpha-amylase activity >25% in bleached and unbleached paper mill wastewater. The LC50 of Tubifex tubifex was noted of >50% after 48 hours incubation test. This revealed that the wastewater discharged from bleached paper mill is more toxic than unbleached paper mill waste this might be due to the use of more chemicals during bleaching and pulping process. This study has revealed that there is need to treat both paper mill wastewaters adequately prior to discharge.
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