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“NON- REVENUE WATER (NRW) AND LEAKAGE DETECTION”

Dr. Anil Kumar Mishra, Bacteriologist, Delhi Jal Board, Govt. Of NCT, Delhi Water is an essential and vital component of life support system. The grounds as well as surface water resources are being utilized for drinking, irrigation and industrial and other purposes. However, due to rapid growth of population, urbanization, industrialization and agriculture activities, water resources are under stress. There is growing concern on the deterioration of water quality due to geogenic and anthropogenic activities. According to news published in daily News Paper “Dainik Jagaran” dated 14-06-2018; 13491 Million Quesec…

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DHI: GANGTOK AND PORT BLAIR CASE STUDIES

By DHI India Case Study 1: DEVELOPMENT AND MACRO-CALIBRATION OF THE WATER DISTRIBUTION MODEL OF GANGTOK, INDIA, 2005 8 Location: Gangtok, Sikkim, India  Type of project: Development and macrocalibration of the detailed water distribution model of Gangtok including monitoring for flows and pressures 8 Client: Gangtok Water Supply and Sanitation Project GWSSP, Gangtok, India. The project was externally funded via KBR, Australia.  Description Gangtok lies on the west of the River Ranipool, in the foothills of Kanchenjunga, at an elevation of 1,700m (5,600 ft), the town is 21 km (13…

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JICA ASSISTED GUWAHATI WATER SUPPLY PROJECT

By Rohit Dembi, Head –Digital Engineering Services, NJS Engineers India Pvt. Limited Project Summary The water system for Guwahati, the largest city in the northeastern region of India, was originally built to harness the Brahmaputra River with a gravity-based distribution system. Unregulated development led to water supply problems, as well as high water pressure in 60% of the system. To improve water distribution and the quality of life for residents, NJS Engineers India was tasked with constructing or upgrading water infrastructure throughout the city, including 36 kilometers of transmission mains,…

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CASE STUDIES OF OUTBREAK OF JAUNDICE EPIDEMICS

By Harisaran Das Outbreak of Jaundice Epidemic in Shimla in 2016 Jaundice epidemic, a waterborne disease broke out in Shimla city and adjoining areas in Himachal Pradesh during January 2016 which lasted till March 2016. It had rattled public health systems in the hill city. The Hospital of Indira Gandhi Medical College (IGMC), Shimla, had witnessed 60-70 cases of Jaundice patients per day in midJanuary which reduced to around 10 by end of February 2016. Over 1200 cases and two deaths were registered, though unofficial estimates put the number of…

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HOW THERMAL POWER PLANTS CAN SAVE 80% OF WATER?

By Dr. Jagjit Singh Sehra, President, CST Associates In the last edition of EA Water, the author presented some on idea how much water is being wasted in the cooling towers of thermal power plants. It was also mentioned that if we save this water how farmers can earn Rs. 3,315 crores per year. In this article we will discuss, how we can convert the existing thermal power stations, to save 80% of the water. To understand the same first we need to understand how much water is evaporated in…

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WIRELESS WATER QUALITY MONITORING SYSTEM

By Piyu Dhaker, Applications Engineer, Analog Devices, North America. Introduction :-Several industries such as beverage production, pharmaceutical plants, waste water treatment plants, and so on, rely on water quality monitoring systems to measure and control important water quality indicators. Parameters defining physical, chemical, and biological characteristics of water can be used as water quality indicators. Examples include: 8 Physical: temperature and turbidity  Chemical: pH, oxidation reduction potential (ORP), conductivity, and dissolved oxygen  Biological: algae and bacteria The article focuses on chemical measurement parameters that have been historically indispensable and unreliable,…

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IMPLEMENTATION OF A PROFICIENCY TESTING FOR WATER SAMPLING AND IN-SITU ANALYSES

By Eric ZIEGLER, Boris CONSTANTIN, Abdelkader BOUBETRA, Anne TIRARD Abstract:-  Since 2018, BIPEA has organized several proficiency tests for water sampling and insitu analyses.These proficiency tests require a very specificorganization, with especially all the participants being gathered at the same time at a defined place altogether. The proficiency test consists of routine in-situ analysis, such as pH, conductivity or dissolved oxygen, usually in three different locations and awater sampling exercise. According to the location, different type of water can be analysed: river, lake, water from a recreation complex, waste water…

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REDUCING INDUSTRIAL WATER FOOT PRINT BY RECLAIMING WASTEWATER

By Mohd Zeeshan, Senior Water Professional As it states, water is essential for life but also the most vulnerable resource, which is often wrongly considered as renewable. Water is not only used in the domestic perspective but also has a vital role in the agriculture and industrial sectors. As the world progresses, water security is becoming the most substantial, social, political, economic and environmental challenge for the humankind. As per a recent study by the Organization for Economic Cooperation and Development (OECD), by the end of 2030, 47 percent of…

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BENEFITS OF CENTRALIZED WASTEWATER TREATMENT

By Geza Csornyei, Attila Farkas, Tamas Kovari, Bernadett Lemaire, Jozsef Neer, Budapest Waterworks Abstract:-  In the past few decades, global population growth has been dominated by an increasing urban population. Maintaining urban hygiene and healthy water resources a major challenge to many countries around the world. Wastewater treatment approaches vary from the conventional centralized systems to the onsite decentralized systems. While in dispersed households decentralized water treatment solutions are promoted in order to economize the investment costs of the sewer system, for more densely populated areas centralized treatment represents a…

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THE IMPORTANCE OF CONTINUOUS ONLINE WATER QUALITY MONITORING IN DRINKING WATER PRODUCTION, STORAGE AND DISTRIBUTION IN REGARD TO CLIMATE CHANGE

By Christoph Schönher, Robert Wurm, Andreas Weingartner, scan Messtechnik GmbH, Vienna Introduction :- The global rise in temperature in regard to climate change affects the water supply in many different ways. In Austria, for example, regionally varying changes in groundwater recharge are expected. Another direct consequence of climate change is the increased number of extreme weather events in the form of heat waves. The increasing temperature has a particular impact on the temperature balance of groundwater, while heat waves are a very direct consequence of climate change in the distribution…

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