Abstract
This paper examines the influence of different operating parameters such as pressure, temperature, pH on the performance of polyamide reverse osmosis membrane. Varying these parameters, intensive trials were undertaken to study the performance of Reverse Osmosis (RO) membrane. Water samples for experiment were collected from Moradgaon village in Chandrapur district with high fluoride, TDS, sulphate and iron concentrations. Removal efficiency of contaminants due to the effect of different operating parameters of RO membrane was studied in detail. Results indicate that polyamide reverse osmosis membrane can successfully remove 95 to 98% of fluoride, TDS, sulphate, iron and ground water contaminants. Different parameters such as pH, pressure and temperature affects RO membrane efficiency. Thus, proper control of these factors is essential for successful operation and maintenance. RO Membrane generates huge quantity of reject water (i.e. 65%-75%), which was further passed through RO Membrane to study its reuse potential. The results showed that water received from RO membrane after recycling of reject water is within BIS limit of drinking water.
Highlights
India has been well endowed with large freshwater reserves, but increasing population and over-exploitation of surface and groundwater over the past few decades has resulted in water scarcity in most regions
In India ground water is considered as a safe source of drinking water which is being utilized intensively for drinking, irrigation and industrial purposes
The Reverse Osmosis (RO) membrane was very sensitive to various operating parameters such as feed water temperature, pressure and pH
Summary
India has been well endowed with large freshwater reserves, but increasing population and over-exploitation of surface and groundwater over the past few decades has resulted in water scarcity in most regions. 37.7 million Indians are affected by waterborne diseases annually, 1.5 million children are estimated to die of diarrhea alone and 73 million working days are lost due to waterborne disease each year [1]. The poor quality of raw water sources warrants the application of stringent treatment technologies and proper monitoring to ensure supply of safe drinking water. In India ground water is considered as a safe source of drinking water which is being utilized intensively for drinking, irrigation and industrial purposes. Due to rapid growth of population, urbanization, industrialization and agricultural activities, Indian ground water resources are under constant stress
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