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.

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

1. The treated water is amenable for surface discharge.
2. 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.
3. The process is ideal for land locked industries (e.g. on shore oil exploration platforms).

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.

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

1. Micro-nano bubbles of ozone are injected into water to remove dissolved oil.
2. An in-house hydrodynamic cavitation based micro bubble generator used to break ozone gas into fine bubbles.
3. Two dedicated stages for dissolved oil removal (micro ozonation followed by adsorption).
4. Tail end reverse osmosis system for removal for dissolved salt.

1. The treated water is amenable for surface discharge.
2. 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.
3. The process is ideal for land locked industries (e.g. on shore oil exploration platforms).

1. All components of the process are available in Indian market.

1. Fabrication work shop (welding cutting, drilling milling etc.), assembly and testing floor.

1. 4 technicians (3 mechanical and 1 electrical) sufficient for fabrication and assembly of different components. 1 engineer (B.Tech in chemical engineering) will be needed to supervise the assembly as per drawings and flow sheets.