Category: Case Study

SIBF system – A sustainable solution for wastewater treatment & reuse

By Navin Singh & Rahul Babar INTRODUCTION India is a fast developing economy and has recently gained prominence in the world as a global leader. There is a huge pool of scientists, engineers and doctors available in the country which is contributing to the fast pace of development on all fronts. The government has taken good measures to raise the standard of living of the citizens by focusing on infrastructure development. But, due to the huge population, rapid industrialisation and fast urbanization, there are major challenges to be overcome. The…

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FEASIBILITY STUDY ON SEPTAGE TREATMENT USING VERMICOMPOSTING AND ELECTROCOAGULATION METHODS

By BindhyaMol K Junior Scientific Assistant, Kerala State Pollution Control Board  & Harikumar P S (Corresponding Author) Senior Principal Scientist & Head, Water Quality Division Abstract The faecal matter from on-site sanitation facilities such as septic tanks and pit latrines can pose significant health risks if it has not been adequately treated. In Kerala 95.2% of households have latrine facilities within the premises; it is higher than the national average (46.9%), but the safe management of faecal matter from on-site sanitation structures received limited attention. The study made an attempt…

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A CASE STUDY ON THE RIVER MAHANANDA WITH RESPECT TO CITY OF SILIGURI

By Aniruddha Bhattacharyya, Assistant Environmental Engineer, West Bengal Pollution Control Board River Mahananda originates from a height of 2100 m at Paglajhora near Kurseong. Originally it was glacial fed but the Mahanada glacier vanished 100 years back. It travels around 360Km to reach Bangladesh to meet River Padma. This river is the main drinking water source of Siliguri. Siliguri being the second largest city of West Bengal has an active population of around 20 lakhs people and discharges the total sewer in to the river. In the lean season the…

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FLUORIDE ISSUE IN GROUNDWATER, ITS HEALTH IMPLICATIONS AND WAY FORWARD

By Ranjit Kumar, IVLP Fellow (Water Pricing and Water Economics), USA, Water Expert, KPMG   Background: Water is essential for all physiological activities associated with humans, animals, and for plant. However, the nature and quality of surface and ground water are widely variable and are determined by the local geological history, including the rocks and hidden ore deposits surrounding the sites for the collection of the water, and other factors, such as the movement of elemental particles and pollutants by lentic and lotic waters and underground aquifers (Datta et al,…

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GROUND WATER EXPLORATION IN HIGH ALTITUDE AREA OF JAMMU & KASHMIR

By S K Juneja Ex Scientist D and Head of Office Central Location of Area Cold deserts of the western Himalayas are unique ecosystems covering 80,000 sq kms of which major part falls in Ladakh region. Ladakh region is one of the inhabited plateaus in the world ranging in altitude from 2100 m to more than 5000 m amsl. Temperature goes as low as -50 0C and Drass is the second coldest inhabited place in the world. Siachen glacier, largest outside the Polar region, is an inhospitable terrain which provides…

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CHITTAGONG WATER SUPPLY IMPROVEMENT & SANITATION PROJECT, PHASE I 2014-2015, PHASE II 2018-2019

Description Chittagong is the second largest city of Bangladesh with an estimated 4.2 million population. It is a very important industrial base and the water network has been managed by CWASA since 1963. CWASA is implementing the Chittagong Water Supply Improvement and Sanitation Project (CWSISP) with funding support from the World Bank (80.5241.01). The model covers approximately 560 km (350 miles) of main pipelines – the maximum pipe diameter being 1,200 mm (48 inches). Surface water sources, groundwater sources, and tube wells provide approx. 6.5 m3/s (230 ft3/s) of water…

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CASE STUDY ANALYSIS & IMPROVEMENTS

By Sumit Kumar, Embassy Services Private Limited. Executive Summary: Energy saving is an essential key performance indicator for every commercial building specially where major part of energy is consumed by HVAC system. To maintain ideal IKW/TR rating of the chiller the condenser & condensate system plays major role.During operations of HVAC system, the energy rating is majorly affected by approach temperature across condenser. Regular approach temperature can only be maintained withhigh quality of water parametersused in condensate system with the support of latest water management & treatment techniques. One such…

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CASE STUDY ON NRW MANAGEMENT THROUGH IMPLEMENTATION OF DMA IN NETWORK

By Rudranarayan Kumar, Chief Manager and Devipriya Rout, Executive, Business Development, Swach Environment Pvt Ltd. Overview Non-Revenue Water (NRW) is a burning issue with water supply utilities in India, which includes both physical and commercial losses and free authorized water for which payment is not collected. One of the major issues affecting the Indian water utilities is the pronounced difference between the amount of system input volume (SIV) into the distribution system and the amount of water billed to consumers, which is the NRW. Average NRW in India is around…

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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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