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TREATMENT OF OILY WASTEWATER FROM CARBON BLACK MANUFACTURING UNIT

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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RESPONDING TO EMERGING INFRASTRUCTURE TRENDS IN INDIA WITH BOROUGE’S SUSTAINABLE SOLUTIONS

By Peck Tze Kang, Head of Regional Marketing, Energy & Infrastructure, Asia South, Borouge Projected to become the world’s most populous country in 2023 , India is on the cusp of an energy and infrastructure revolution. The government must ensure its rapidly growing population has access to affordable, reliable, sustainable energy and water. At Borouge, we enable everyday life. As a leading petrochemical company, Borouge provides innovative and differentiated polyolefin solutions for the infrastructure, energy, mobility, advanced packaging, agriculture and healthcare industries. Our solutions also help address several global challenges,…

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

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

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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NGT Imposes Environmental Compensation Of Rs 3,500 Cr On Bengal Over Failure In Waste Treatment

The National Green Tribunal has imposed an environmental compensation of Rs 3,500 crore on West Bengal for failure in the treatment of solid and liquid waste. The green bench noted that the West Bengal government did not take much initiative in prioritising solid and sewage treatment plants in urban areas, news agency PTI reported. The bench, headed by Justice Adarsh Kumar Goel, sought for remedial measures to be taken within six months. The order stated that for failure in liquid waste management processing, “liability of the state is to pay…

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Wabag bullish on Indian market; looking at Middle East, Africa to increase revenues

Water technology firm Wabag said it is bullish on the Indian market with the government’s thrust on clean water and river rejuvenation projects, and also exploring Middle East and African markets to increase revenues. Chennai-based multinational firm which is associated with the Clean Ganga Mission has executed the first Sewage Treatment Plant (STP) under Namami Ganga in 2018. Besides Namami Ganga, the government’s focus on Swachh Bharat Mission, Atal Mission for Rejuvenation and Urban Transformation (AMRUT) and Jal Jeevan Mission are the growth triggers for the company, Wabag global head…

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National Mission for Clean Ganga: 13 projects approved for mapping & management

Government has sanctioned 13 projects pertaining to geo-mapping, sewerage management, riverfront development among others for conservation of resources and management of infrastructure along the Ganga river system as part of National Mission for Clean Ganga. At the 44th meeting of the Executive Committee organised by National Mission for Clean Ganga (NMCG), the government has sanctioned 13 projects pertaining to geo-mapping, sewerage management and wetland conservation among others that would cost an estimate of INR818 crore. The 13 projects that were sanctioned included Geo-mapping in Uttarakhand, Uttar Pradesh and the NCT…

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Hyderabad all set to become India’s first city to fully treat its sewage

If things go according to plan, Hyderabad will become the only city in the country to have 100 per cent sewage treatment facility by the end of next year. Work on the 31 Sewage Treatment Plants (STPs) in Greater Hyderabad and its outskirts are on at a brisk pace and are expected to be completed by next summer. In fact, some of them are expected to be ready by the end of this year. Apart from treating the generated sewage, the new STPs would also help protect water bodies including…

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Amritsar: 24X7 surface-based water supply project to be completed by 2024

The 24×7 surface-based water supply project will be completed by July 2024. Around 16 per cent work has been completed till the date. A meeting was recently organised under the chairmanship of Mayor Karamjit Singh Rintu regarding the progress of the canal water project being implemented under the Punjab Municipal Infrastructure Development Company (PMIDC). During the meeting, the officials of L&T Limited, a construction company, claimed that the canal water project was set to be completed by July 2024. The company has also been provided a 10-year contract for the…

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Vijayawada Municipal Corporation set to revive sewage treatment plants

As part of its efforts to achieve a better rank in the next edition of Swachh Survekshan, the Vijayawada Municipal Corporation (VMC) has formulated an action plan to revive sewage treatment plants to reduce carbon emissions under its ambit. According to VMC officials, the Union Ministry of Housing and Urban Affairs have identified 28 cities in the country under Swachh Bharat Mission.  As a pilot project in the Sustainable City category, Vijayawada is among the five selected cities. Special funds will be released by the United Nations Industrial Development Organisation…

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