Tag: SWRO

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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Achieving consistent low energy consumption in sea water RO based desalination plants using Lowatt® technology

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Low Energy Consumption

Abstract Biofouling remains the single most important factor that increases energy consumption as time progresses in the operation of the Reverse Osmosis (RO) membrane system. One of the challenges with plant operation is that once a plant has been designed for certain energy consumption, it does not remain steady over a period. This is mainly due to biofouling and the inability to clean the membrane efficiently. In an effort to maintain healthy operational efficiency in terms of water production and energy consumption, differential pressure across the membranes should remain constant…

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