Tag: Wastewater

Should Waste Water Be Regarded as a ‘Waste’ Anymore ?

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By Dr. Mayur J. Kapadia, former Additional General Manager & Head, Quality Control Division, GNFC Ltd., Bharuch, Gujarat. Water – the sole lifeline of people and a precious gift of nature –is becoming increasingly scarce. In the face of climate change, our freshwater resources are at threat. One tenth of the world’s population lacks access to clean and safe water. The population growth, increased human activities and degradation of natural environments have put challenge to provision of safe and sufficient water to the mankind. Wastewater is often seen as a…

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TREATMENT OF OILY WASTEWATER FROM CARBON BLACK MANUFACTURING UNIT

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By Jitendra Khandelwal, Amit Kumar, Pushkar Shukla, Hiten Mehta, Aditya Birla Water Application and Product Development Centre, Grasim Industries Limited (Chemical Division) Treatment of Oily wastewater is one of the most challenging tasks in effluent treatment. It involves several Physical and chemical processes. Free oil can be separated and recovered using several physical processes like skimmers, oil traps, interceptors etc. However, removal of emulsified oil is extremely challenging and requires chemical treatment with coagulants and flocculants.The efficacy of emulsified oil separation depends on factors like oil content, nature of oil,…

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The Universal Rise of Zero Liquid Discharge for Wastewater Management: Technologies and Future Directions

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Freshwater scarcity, one of the most critical global challenges of our time, poses a major threat to economic growth, water security, and ecosystem health. The challenge of providing adequate and safe drinking water is further complicated by climate change and the pressures of economic development and industrialization. The public and industrial sectors consume substantial amounts of freshwater while producing vast quantities of wastewater. If inadequately treated, wastewater discharge into the aquatic environment causes severe pollution that adversely impacts aquatic ecosystems and public health. Recovery and recycling of wastewater has become…

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LOW COST OF MLD/ZLD TREATMENT ACHIEVED THROUGH INNOVATIVE BRINE CONCENTRATION MEMBRANES HELPING THE TEXTILE SECTOR

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By Tina L. Arrowood, Principal Research Scientist, DuPont Water Solutions, USA and Mahesh Kulkarni, Technical Service and Development Scientist, DuPont Water Solutions, India EXTENDED ABSTRACT For maximizing wastewater reuse and preventing wastewater discharge, zero-liquid discharge (ZLD) is acknowledged for its benefits in protecting fresh surface waters. Unfortunately, it is typically determined to be too expensive to be practical. A more realistic and cost-effective method is a hybrid approach of minimal-liquid discharge (MLD), using reverse osmosis (RO) membranes, to minimize the volume of wastewater prior to thermal ZLD treatment. To comply…

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KSB Limited registers 26.5 per cent sales growth!

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KSB Limited, a leading pumps and valves manufacturer in India, recorded a growth of 26.5 per cent with a sales value of 8,661 Mio. INR on its half yearly sales (Jan to Jun 2022) vis-a-vis 2021 (Jan to Jun 2021). As an experienced pump manufacturer, its product portfolio includes building and industrial technology, water transport, wastewater treatment and power plant processes, agricultural applications, residential application. Owing to the innovative research and development, KSB can meet the most diverse requirements of customers. Benefit from many years of experience and technical expertise…

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Yogi govt working on utilizing drainage water for irrigation

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The Uttar Pradesh government led by Chief Minister Yogi Adityanath is working on an innovative plan to utilise drainage water for irrigation. Yogi government’s move is aimed at benefitting farmers and at the same time protecting the environment with better management of drainage water. The state government is preparing the blueprint of this plan and soon the scheme will be on the ground. The engineers of Namami Gange have been instructed to complete the task. Preparations are being made for the treatment of drainage water falling into the rivers through…

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USE OF MICROBES AND HERBAL EXTRACTS TO TREAT WASTEWATER

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By Sanjay Bahl When the going gets tough and when traditional water treatment methods seem unsatisfactory then we should resort to the natural ways of cleaning wastewater. If water was a Sadhu or Yogi then he would go to his ashram in the morning as a bright, smart, clear-headed gentleman and come back in the evening to his hut as a fat, lethargic, tired man and then would get into an intense tapasya to rejuvenate himself again for the next day. Similarly, technically Speaking water is a universal solvent and…

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WATER QUALITY OF GANGA RIVER

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Water Quality of Ganga

By Preeti Shinde, Application Specialist, Hanna Equipments India Pvt. Ltd. The holy river of Ganga is the largest river in India. The Ganges is threatened by severe pollution. This poses a danger not only to humans but also to animals; the Ganges is home to approximately 140 species of fish and 90 species of amphibians. The river also contains reptiles and mammals, including critically endangered species such as the gharial and South Asian river dolphin. The Ganges River Dolphin can only be found in the fresh water rivers of Bangladesh,…

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SUSTAINABLE WATER MANAGEMENT WITH REUSE OF WASTEWATER

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By Ms. Janshi.G, Murugappa organo water solutions private limited Water has been the backbone of evolution of life. Starting from mere existence to engineering achievement, the usage of water has been the catalyst.The water source decided the course of all the civilizations. It boosted the economy and trade. Along with improvising the standards of living, the anthropogenic water application equally resulted in the exploitation of the hydrosphere. Agriculture led to formation of civilized colonies and the later era industrial revolution led to urbanization in selected regions. Thus, started the challenge…

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SOLAR POWERED WASTE WATER MANAGEMENT (WWM)

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By Dilip Yewalekar and Manisha Kinge, Jain Irrigation Systems Ltd., Jalgaon India Solar power is very curious subject flaming all over the world in all sectors from space station to water management & treatment because of unlimited availability of free solar radiation without proprietorships and non-judicial! Concerning to use of solar power in waste water management sector is in primitive stage because of lack of awareness on design aspects and exceptional types of electro-mechanical machines for waste water management system. In the waste water treatment, all the electromechanical devices are…

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