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 …

Nine rivers found highly polluted

Forest and environment minister Bijayshree Routray today informed the State Assembly that the Odisha State Pollution Control Board (OSPCB) has found 43 stations of nine main rivers of the state as highly polluted. Replying to a question of MLA Amar Prasad Satpathy, Rourtay said that the Board in 2011 had …

Reaction kinetics and validity of BOD test for domestic wastewater released in marine ecosystems

With urbanization of coastal cities, marine pollution is becoming a severe problem. The rates of biodegradation, decomposition, and ratification of pollutants get slowed down due to salinity. The higher temperatures prevalent in tropical regions significantly affect reaction rates. Multiple factors influence the rate of biodegradation, making the process complex. Hence, …

Ganga water contamination exceeds permissible limit

Bacterial contamination in the Ganges has exceeded the maximum permissible limit at a number of locations even as 80 per cent of pollution in the river is due to discharge of sewage, the government said today. "...the levels of bacterial contamination in terms of fecal coliform are reported to be …

Interceptor sewer project by July ’14

‘It Is Expected To Benefit 70% Of Delhi’. New Delhi: Delhi Jal Board has claimed that work on the interceptor sewage system is set to be completed by July 2014. Once the three main drains running through the city — Najafgarh, Shahdara and Supplementary — are intercepted, the biochemical oxygen …

Assessment of environmental flows for the upper Ganga basin

One of the key threats to the upper Ganga and other Himalayan rivers is water abstraction for hydropower, irrigation, urban and industrial needs. To address this, the concept of ‘minimum flows’ has recently been proposed and is being implemented in some river basins. However, this is still not based on …

Study of waste water treatment technologies adopted in Ludhiana and Muktasar districts of Punjab by the State Government

The Department of Rural Development & Panchayats, Government of Punjab has recently implemented waste water treatment systems, applying Waste Stabilization Ponds (WSP) technology in some of the villages in the districts of Ludhiana and Muktasar, in order to rejuvenate/renovate existing unused ponds. The state government desired to have techno-economic evaluation …

Ammonia oxidizing bacteria community dynamics in a pilot-scale wastewater treatment plant

Chemoautotrophic ammonia oxidizing bacteria (AOB) have the metabolic ability to oxidize ammonia to nitrite aerobically. This metabolic feature has been widely used, in combination with denitrification, to remove nitrogen from wastewater in wastewater treatment plants (WWTPs). However, the relative influence of specific deterministic environmental factors to AOB community dynamics in …

Outlook on water environmental management in Asia 2012

The WEPA Outlook is the flagship publication of WEPA which includes basic information on the water environment and its management in each WEPA partner country. The Outlook 2012 consists of three main chapters. Chapter 1 presents the result of the analysis of institutional frameworks for water environmental management in each …

Road map for pollution free rivers

The Central Pollution Control Board in association with State Pollution Control Boards and Pollution Control Committees have established a network of 1085 Water Quality Monitoring Stations along various river stretches. Water quality data in respect of Bio-chemical Oxygen Demand (BOD) has exceeded the desired water quality criteria (< 3 …

Steep rise in river pollution

The Central Pollution Control Board (CPCB) in association with State Pollution Control Boards (SPCBs) and Pollution Control Committees (PCCs) have established a network of 1085 Water Quality Monitoring Stations (WQMS) along various river stretches. Water quality data in respect of Bio-chemical Oxygen Demand (BOD) has exceeded the desired water quality …

Report unveils poison rivers - Jharkhand fares miserably in CAG water audit

Ranchi, Jan. 15: A first-ever water pollution audit carried out by the Comptroller and Auditor General (CAG) has pegged Jharkhand at the bottom of the performance chart with most river conservation projects lying incomplete in the state. According to the report, Performance Audit of Water Pollution in India, the Ganga, …

Churning still water: a briefing paper on the state of urban waterbodies, conservation and management in India

In this new briefing paper Centre for Science and Environment (CSE) focuses on state of waterbodies, conservation and management in India and provides a review of the existing policies, acts and laws to tackle loss of urban water bodies. Urban waterbodies play an important role in flood control, groundwater recharge …

Yamuna clean-up: Interceptor project launched

New Delhi: The ambitious interceptor sewage project that is being pitched as the ultimate solution to the Yamuna’s filth was finally inaugurated on Thursday. Work is expected to begin on Friday but the system, that entails construction of parallel channels along the three main drains in the city – Najafgarh, …

Vaitarna among most polluted rivers in state

Vaitarna among most polluted rivers in state Clara Lewis, TNN | Dec 23, 2011, 06.22AM IST MUMBAI: Vaitarna, which provides drinking water to Mumbai, is among the most polluted rivers in Maharashtra. The only solace for Mumbaikars is that the BMC has one of the finest water treatment plants in …

CCEA okays Phase-III of Yamuna clean-up

The Cabinet Committee on Economic Affairs on Thursday gave the green signal to the proposed third phase of cleaning the 22-km stretch of Yamuna river passing through Delhi. The Japan International Cooperation Agency (JICA)-assisted Yamuna Action Plan (YAP) Phase III project in Delhi was approved under the Centrally sponsored scheme …

Status of water quality in India - 2010

The water quality data on rivers, lakes, ponds, tanks and groundwater locations being monitored under the network is evaluated against the water quality criteria and the monitoring locations in exceedence with respect to one or more parameters are identified as polluted and require action for restoration of water quality. The …

Wetlands for water quality management: the science and technology

This paper examines the use of constructed wetlands for water purification. The introduction begins witha brief overview of wetlands: their nature and services offered. These wetlands are ecoststems with water that is static or flowing and characerized by emergent , floating and submerged aquatic vegetation. Some of the services provided …

Darkling waters

The Bagmati loses its way in Kathmandu amid political vacuum and urban chaos. The chaos and urban sprawl of today’s Kathmandu have taken a serious toll on the stretch of the Bagmati and its tributaries that meet in the city. In the absence of clear guidelines regulating river water use …

Benthasludge stabilization in the river Ganga at Kanpur

Field observations conducted at Kanpur, to analyze the ration of biochemical oxygen demand (BOD) contributions by benthasludge to the overlaying waters of the river Ganga were presented in part 1 of this paper. This data was later correlated to the data obtained under different conditions of operating and process variables …

Urban sewage water recycling through aquaculture

Production of fish in any culture system depends to a great extent on water quality management.

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