Technology Details

Area of Technology:Life Sciences

Title of the Innovation: PROCESS SYSTEM FOR CLEANUP OF DISSOLVED OIL AND SALT CONTAMINATED WASTE WATER FOR GAINFUL UTILIZATION

Brief About Innovation

PROCESS SYSTEM FOR CLEANUP OF DISSOLVED OIL AND SALT CONTAMINATED WASTE WATER FOR GAINFUL UTILIZATION

ABOUT THE TECHNOLOGY

 Large quantities of waste water having dissolved oil and salt is typically produced due to industrial operation. One such example is produce water that is generated during oil drilling operations. For land locked oil platforms the separated water is typically reinjected into the well (a costly affair) as it is not suitable for surface discharge.

In our process we use micro-nano bubbles of in-situ generated ozone gas to oxidize and remove dissolved oil from waste water. Dissolved salt removal is achieved using a Reverse Osmosis step in the tail end. The final water is thus free of dissolved oil and salt and can be discharged on surface. In parlance of produce water this technology will reduce reinjection cost. This water is also suitable for agricultural use and/or other gain full applications (industry process water, water reuse etc.). Such usages become all the more important if the industry is located in rain deficient/arid regions.

SALIENT FEATURES

• TOC, COD, BOD(5) and TDS of the treated water are 8, 10.3, 14 and 404 ppm, respectively.
• The treated water is suitable for agricultural end use.
• Specific energy consumption is 20-25 kW-hr/m3 of water processed.
• Around 50 % recovery can be attained in tail end RO system.

APPLICATIONS

• The treated water is amenable for surface discharge.
• The treated water can be used for agriculture or other gain full purposes (like industrial process water, water reuse etc). This is essential in rain deficient/arid regions.
• The process is ideal for land locked industries (e.g. on shore oil exploration platforms).
• Connect for licensing: ajain@nrdc.in; 9467988231