Category: Tech 2.0

SWRO for water supply to coastal cities – A viable alternative – case study at Chennai

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SWRO Chennai Case Study

Abstract The water need of Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB) to fully serve the said area by 2026 is 2248 million liters per day (MLD) whereas the maximum potential from surface water, ground water and sea water desalination (SWRO of 200 MLD) is only 1954 MLD. The cost of SWRO water is about Rs 55 per Kiloliter (Kl) whereas the tariff for public is just about Rs. 5 per Kl by Government subsidy which cannot be sustained for long. Out of 1810 MLD, 837 MLD is from…

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Grey water management and natural purification processes

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Grey Water Management

INTRODUCTION Grey water refers to the wastewater generated from domestic activities, including water from bathrooms, kitchens, and laundry. While it is typically contaminated, it is not as hazardous as black water (from toilets). In areas with high population density, such as the Lower Ganges Basin and other river basins, managing grey water presents a significant challenge. This article discusses the natural purification and settlement processes of grey water that exist within local ecosystems. The primary contaminants found in grey water include: Detergents and Surfactants: From laundry and dishwashing soaps, these…

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Enhancing water security in rural India

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Rural Water Security

The water scenario in rural India India’s development and self-reliance is dependent upon water security. At present, India ranks 2 in water consumption and 132 in water availability per capita. Although rural India comprises 66 percent of the country’s population, it accounts for approximately 80 percent of the nation’s total water usage, for agricultural purposes. The water availability in any region is dependent on natural factors like rainfall, river systems, hydro- meteorological and geological conditions, however, water availability per person is dependent on the population of a country. The per…

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How innovative microbial formulations can enhance ultrafiltration membrane longevity

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Ultrafiltration Membrane

From the past few years, the significance of ultrafiltration membrane technology in wastewater treatment has grown a lot. It is universal and is able to produce high-quality treated water, making it a key component in modern wastewater treatment processes. However, due to various factors there are concerns that must be taken into consideration before incorporating it into the wastewater treatment. In this article, we will explore the importance of UF membrane technology, address the cost concerns, and introduce innovative solutions to enhance the longevity of this membrane technology. Let’s first…

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Transforming urban landscapes with digital water solutions and revolutionizing smart cities

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Digital Water Solutions

The concept of smart cities is rapidly gaining momentum as urbanization continues to increase and water demand rises. The integration of digital technologies and innovative strategies has become imperative in efficiently managing water resources in urban environments. The amalgamation of cutting-edge technologies, innovative strategies, and the concept of Smart Cities is revolutionizing the way water within these densely populated environments is perceived, managed, and utilized. As cities continue to evolve, the integration of advanced technologies and data-driven strategies becomes pivotal in safeguarding the future of urban water resources. Embracing these…

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Regenerated resins for a greener future

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Regenerated Resins

As populations surge and industries expand, the demand for clean water is reaching unprecedented levels. However, the conventional approach in the industry, relying on single-use ion exchange resins, carries a substantial environmental cost. In the current linear model, significant quantities of virgin resources are consumed, greenhouse gases are emitted, and landfills bear the weight of discarded resins. However, with resin regeneration, there is potential for a more sustainable way forward. Resins revitalized – a greener horizon Resin regeneration is the process of rejuvenating exhausted water treatment resins, extending their lifespan,…

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Water Monitoring: Essential for Sustainability

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Water is a crucial element for sustaining life. The swift expansion of population, urbanization, irrigation, and industrialization has exerted immense pressure on water resources. The combined effect of escalating usage of this invaluable natural resource has given rise to water scarcity in numerous regions across the globe with several countries facing difficult challenges. In India, almost 44% of the population is facing extreme water stress, reported by the Niti Aayog. Moreover, climate change has contributed to alterations in the hydrological cycle within the nation. Therefore, safeguarding this scarce resource requires…

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Urban and Industrial Sustainable Water Management: A Collective Responsibility

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Introduction: The finite nature of water resources and their susceptibility to pollution, contamination, and climatic influences underscore the pressing need for strategic interventions to ensure sustainable usage. The Sustainable Development Goal’s target 6.4, recognizes this challenge and demands increased water efficiency which is a way of easing water demand pressure/water user conflict by more effectively utilizing every unit of existing supply. Urban areas, in particular, grapple with burgeoning demands, prompting the imperative adoption of water conservation practices capable of reducing consumption by up to one-third, concurrently mitigating surface and groundwater…

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CONSTRUCTED WETLANDS: A WASTEWATER TREATMENT TECHNOLOGY AND ITS SCOPE IN INDIAN AGRICULTURE

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By Rama Pal, S. Islam, M. Muruganandam, Vibha Singhal, Trisha Roy and Uday Mandal ICAR-Indian Institute of Soil and Water Conservation IntroductionToday we face challenges of water scarcity, wastewater discharge, landscape limitation and ecological conservation. As per the CPCB report 2021, the total wastewater generation in India is 72,368 MLD out of which 72% is discharged untreated into surface water bodies. The sustainable solution to this problem could be innovative water management strategies that integrate technology with landscape design and enhances ecosystem services. Constructed wetlands(CWs) are such treatment systems that…

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ZERO LIQUID DISCHARGE PROJECTS IN CHEMICAL INDUSTRIES

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Earth's Water

By Ashish Chauhan, Asst. Manager (Process & Project), Lords Chloro Alkali ltd. In recent few years water scarcity is emerging problem in the world. Now days not only in Asian continent but also in European countries like England, Finland faces drought like scenario. Availability of Portable is limited and uneven rainfall made condition more badly. As per Data of water availability around 71% of earth surface is covered with water. In which only 2.5 % is only fresh water out of which only 31% available for us. In recent years…

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