Original Research Article
Year: 2020 | Month: January | Volume: 7 | Issue: 1 | Pages: 164-173
Bioassay Study of Biomedical Liquid Waste (Treated Effluent) of Bhopal City, Madhya Pradesh, India
Reeta Kori, Alok Saxena, Sandhya Mokhle, Vineeta Goutam, Ankita Kulshreshtha, Vandana Ramnani, Makhan Parmar
Central Laboratory, Madhya Pradesh Pollution Control Board, Paryavaran Parisar, E-5, Arera Colony, Bhopal, Madhya Pradesh, India.
Corresponding Author: Ankita Kulshreshtha
ABSTRACT
Biomedical liquid waste originated from hospital, laboratories & research centres has the potential to pose serious threat to the environment in terms of spread and contagiousness of infectious diseases to the system. Total fourteen hospitals were selected for this study. The study was conducted during April 2018 to March 2019. Monitoring of biomedical liquid waste (Treated Effluent) was performed as per guidelines of Central Pollution Control Board and bioassay test was performed as per BIS method, 6582: 2001. Biomedical waste may affected the aquatic life when it discharged in to the surface water. Fish are the primary bio indicator as they are very sensitive towards the pollution, so this study was based on toxicity test on fresh water Brachydanio rerio (Commonly known as Zebra fish). The observation based on 90% survival of tested fishes at 50% dilution (1:1 ratio of waste water to test water by volume) up to 96 hrs, that represented as toxicity factor one. Further increase in toxicity factor represents increase in toxicity found acute state. This study concluded that treated effluents from most of monitored hospitals of Bhopal city were found free from acute lethal toxicity.
Keywords: Hospitals, Biomedical Liquid Waste, Effluent Treatment Plant, Treated Effluent, Bioassay Test, Toxicity factor.
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