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Water Pollution has become a major problem with increasing urbanisation and rapid industrialisation. Despite the abundance of water, pollution causes the water to be less useful and more harmful to health, environment, and life on our planet. In past few years, many researchers have focussed on use of biological & physical treatment methods that are cost-effective and cause no harm to the environment instead of chemical methods. The aim of the present work is to study the effect of organic solid wastes in the form of orange peels, marigold flowers, and neem leaves on domestic wastewater treatment. Eco-enzyme solutions were prepared using Dr. Rosukon’s method from the wastes mentioned which involves mixing jaggery along with the wastes and water in the ratio of 1:3:10. The eco-enzyme solution was then allowed to be prepared through 90 days of fermentation process. The three eco-enzyme solutions – after 10 days of filtration – were then mixed with domestic wastewater samples individually keeping 90 astewater and 10% eco-enzyme solution. The results after 50 days of digestion period suggests that orange eco-enzyme was the most effective in reducing Total Dissolved Solids (TDS) while Marigold eco-enzyme was most effective in reducing Chemical Oxygen Demand (COD).

Effect of eco-enzymes prepared from selected organic waste on domestic waste water treatment