Biological Oxygen Demand (BOD)

Order of the National Green Tribunal regarding pollution of Godavari river, Telangana, 29/05/2025

Order of the National Green Tribunal in the matter of News Item titled "Telangana: Deepening pollution crisis in Godawari threatens lives livelihoods appearing in the Telangana Today dated 13.05.2025" dated 29/05/2025. The application was registered suo-motu on the basis of the news item titled Telangana: Deepening pollution crisis in Godawari …

Growth and decay of water hyacinth in lakes-change in lake water quality and accumulation of organic matter

Water hyacinth growing in the lakes absorbs the nutrients (phosphorous, nitrogen) being released to the lake water from untreated sewage discharged in the lake, for their growth and reduces the nutrient concentration in the lake water. After a period of time these plants sink to the bottom of lakebed and …

Rapid assessment of Kodaikanal lake

Kodaikanal Lake which forms the heart of the resort is a star shaped lake, covering an area of about 24 hectares. Kodaikanal Lake was created in 1863 by Sir Hendry Levinge. The objectives of this study is to assess the physico-chemical and biological quality of the Kodaikanal lake and to …

Mallathalli lake: Low DO levels confirmed

A sample study of the water collected by the Karnataka Pollution Control Board (KPCB) at the Mallathalli Lake on Saturday has revealed low Dissolved Oxygen levels (DO). Out of the four samples collected by KPCB at different corners of the lake, where a lakh fish had died, two samples were …

Stories float on fish kill in lake

The Mallathahalli lake, where about a lakh fish were found dead over the last four days, was cleared of the waste on Saturday by the Bruhat Bangalore Mahanagara Palike (BBMP). Water samples were collected from different parts of the lake and sent for tests, the results of which would be …

100 tonnes of fish on brink of death

Coimbatore Water level plummets to 15 ft as against full capacity of 55 ft AS the fishes in Amaravathy dam near Udumalpet are dying due to lack of oxygen and pollution following dip in the water level, five departments - Fisheries, Forest, Health, Public Works Department (PWD) and Tamil Nadu …

UPPCB determining Gomti's water quality

The Uttar Pradesh Pollution Control Board (UPPCB) on Monday sent a team to collect river water from Gomti barrage to find out its dissolved oxygen level. The step was taken after largescale death of fish was reported recently in the water stretch. UPPCB CEO DC Gupta said the dissolved oxygen …

Performance evaluation of anaerobic single baffled reactor as alternative to existing onsite sewage treatment for Lakshadweep Is

Recent study on ground water quality in Lakshadweep Islands shows that groundwater in these islands are mainly contaminated by domestic sewage and sea water intrusion. Contamination by domestic sewage is attributed to tank used by the islanders for sewage disposal. In the present study, an Anaerobic Single Baffled Reactor is …

Water quality for ecosystem and human health

The purpose of the new edition is to introduce the basic concepts of water quality and how it is related to ecosystem and human health; and to present an overview and assessments of current and upcoming global water quality issues with examples from around the world. It also includes a …

Recovery of better quality reusable salt from soak liquor of tanneries in solar evaporation pans

The segregation, collection and disposal of saline wastewater streams into solar evaporation are practiced in tanneries to minimize the Total Dissolved Solids (TDS)and Chlorides in the treated effluent and to protect the environment. The wastewater generated from the soaking operation contains soluble proteins such as albumin & globulin and suspended …

Sewage in Sankey tank: 200 fish die

The flora and fauna of Sankey Tank have been deteriorating rapidly in the last three months due to sewage flooding the tank from surrounding areas. It is estimated that 200 fish have died there and the influx of migrating birds had reduced considerably. The members of the Sankey Park Walkers …

Pollution level goes up in Yamuna

As the World Environment Day would be celebrated on Thursday, the Yamuna river would project a grim picture about increasing pollution level and dip in the water quality. "The Biochemical Oxygen Demand (BOD) load, an important indicator of pollution level has increased by 13 per cent over last year," Central …

Yamuna pollution rising: CPCB

With World Environment Day being celebrated on Thursday, the Yamuna river today projects a grim picture of increasing pollution levels. "The Biochemical Oxygen Demand (BOD) load, an important indicator of pollution levels, has increased by 13 per cent over last year,' Central Pollution Control Board (CPCB) has said in its …

Evaluation of ground water quality of Bareilly city

The quality of ground water across the Bareilly city has been determined by analyzing different physico-chemical parameters. Alkalinity and hardness of groundwater is beyond the WHO limits. Water quality index of different sites is also calculated.

Characterization of textile wastewater

The wastewater generated from textile industries of Bhilwara city is studied for its characterization. Wastewater of textile industry was found to contain a high degree of pollutants with high TDS and suspended solids. The wastewater is highly colored and viscous due to dyestuff and suspended solids respectively.

Characterization of tannery effluent

Effluent samples were collected from a tannery in Ambur, near North Arcot Dist, Tamil Nadu, India. The physico-chemical parameters of the effluent viz, colour, odour, pH, Electrical conductivity, TSS, TDS, BOD, COD, total hardness, calcium hardness, magnesium hardness, chloride, sulphate and total chromium were determined. The results revealed that almost …

Performance evaluation of the common effluent treatment plant for tanneries at Pammal - Pallavaram Tamil Nadu (India)

The data on flow, BOD, COD, TSS and TDS were collected from the common effluent treatment plant (CETP) for the period from June '96 to November '96. The data were analysed to assess the performance of the CETP in terms of removal efficiency for the above mentioned parameters. The original …

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