Waste Water Reuse By Vishvarja Infra

Waste Water Reuse By Vishvaraj Infra

Mr. Arun Lakhani the CMD of Vishvaraj Infra saw the Waste Water Reuse development as a Civic Necessity and a Business Opportunity. This project went on to become a huge success story with the Orange City Water and also popularly known as Nagpur 24x7 Water Supply project. The citizens of Nagpur are extremely happy and fortunate with the implementation of the waste water reuse model.

Here’s what Arun Lakhani saw differently and thought was it was about time to change. In contrast the demand for fresh water is growing rapidly, estimated to go from 813 BCM today to 1,447

BCM by 2050, whereas the resource base remains constrained at 1,122 BCM. The industrial sector, which is one of the major users of fresh water, mostly puts fresh water to non-potable. Wastewater treated up to secondary level can easily be utilized for this purpose freeing up massive amounts of freshwater for domestic consumers.

This can easily be achieved by improving the municipal wastewater collection, treatment and reuse thus not only recycling wastewater which is otherwise lost but also save the downstream water bodies from pollution. This is the win-win proposition of VIL’s model for the all the stakeholders, a unique example of creating value from waste whilst contributing positively to environmental sustainability.

Amongst the challenges thrown up by increased urbanization in India one of the bigger ones is massive increase in wastewater generation.

The Central Pollution Control Board (CPCB) estimates that about 80 percent of the water supplied for domestic use is discharged as wastewater. This pollutes the downstream areas as it enters untreated into these water bodies. Around 38,250 MLD of wastewater is generated by class I and class II cities in India, which is estimated to grow 3.5 times to 132,250 MLD by 2050. The current wastewater treatment capacity can handle only 30 percent of the total generation, out of which too only 55 percent is operational.

This translates to an investment gap of over USD 7 Billion for class I and class II cities by 2016-17.

VIL India saw this as a win win situation through the reuse model.

The untreated sewage will not only be treated but the treated water

will also be reused by thermal power plant or any other industry.

Additional potable water currently used by industries will be available for drinking water supply. The urgency of the need of dams or additional infrastructure for meeting the drinking water requirements of the growing population will be pushed by number of years. The client may recover all its investment through the sale of treated water, thus, the STP for them would be constructed without any investment addressing the menace of untreated water.

200 MLD Waste Water Treatment Project in Nagpur. Nagpur is 10th largest Indian city with ~2.5 Mn population; Population is expected to grow to 5 Mn in the next 25 years. 3rd largest and most industrialized city after Mumbai and Pune in Maharashtra. The Objective was Providing Sewage Treatment for 200 MLD and possible reuse by potential Customers in Nagpur.

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