Factories are rapidly expanding, as is pollution as well as water use! It was common practice in India, particularly, to release enormous amounts of wastewater into rivers. One kind of wastewater treatment technique that is specifically made to clean industrial & household waste & wastewater for recycling is the ETP Plant. Commercial RO Plant is the best effluent treatment plant manuf... https://www.commercialroplant.com/effluent-treatment-plant-manufacturer/