Assessment of Domestic Wastewater Generation and Treatment Gaps in Baikampady Industrial area, Mangaluru, Karnataka
The current study focuses on the pollution of the Netravathi River, Gurupura River, and Baggundi Lake in the Dakshina Kannada District, which is highly polluted as a result of illegal or unauthorized discharge of domestic wastewater into these rivers. A study was carried out to assess the quality and quantity of sewage water generated in the Baikampady Industrial Area, Mangaluru, alongside an initial survey to examine the types and nature of industries operating within the area. Sewage water samples were collected from 20% of industries in each category; i.e., treated sewage and untreated sewage water were analyzed for various physicochemical and microbiological parameters such as pH, biochemical oxygen demand, total suspended solids, ammoniacal nitrogen, chemical oxygen demand, total nitrogen, and fecal coliform. Total domestic sewage wastewater generated from 9 water-intensive industries is 1900.22 KLD and is being treated in their own sewage treatment plant, and approximately 515 KLD domestic sewage wastewater is generated from 170 industries that do not have any treatment plant facilities for treating their domestic wastewater. This study reveals a gap in the treatment of approximately 515 KLD of domestic wastewater, primarily generated by orange and green category water-intensive industries. A total of 515 KLD of wastewater may be considered for the design of a Common Sewage Treatment Plant/Combined Sewage Treatment Plant.