Enviro energy

REVERSE OSMOSIS

“Zero Discharge” is where every industry wants to be these days. No treated effluent discharged to the ground. The two main systems required to achieve this are 1. REVERSE OSMOSIS 2. EVAPORATOR

Almost all major industries these days have effluent treatment plants. As we have indicated earlier, most of them will be in need of Phase III technologies. In other words their effluents may not have been treated properly, in spite of their ETP fully loaded with equipments. Phase III technology means innovative way of making the ETP work together. Unlike raw water RO, if you feed treated effluent, the performance of the ETP plays the most important role. The following are the five steps leading to that goal. Your industry may already be practicing some of these steps.

The five steps to prepare effluent for treatment in RO

• Characterise all effluents produced on – site;

• Implement a waste minimization program to reduce the volume and
strengths of effluents;

• Incorporate in-process conditioning and treatment, where appropriate;

• Determine and install segregation facilities to tailor treatment options;

• Optimise performance of ETP-Phase III Technologies.

Then push through RO to recycle the water to process

Install RO for the treated effluent to recover process water.

RO membranes are designed to handle only raw water. Hence too get the maximum performance from the RO membrane, the effluent be treated to the best possible, as close to the raw water quality as possible. Hence the performance of the ETP plant plays a very important role in reducing the fouling of the membrane.

We offer a single RO plant which can handle both effluent and raw water, eliminating the need for 2 RO plants (1 for raw water and another for effluent).

Evaporator Crystallizer to convert RO reject to salt

The last step in achieving “Zero Discharge” is the Evaporator to evaporate the reject into salt. The main twin problems to be solved in an evaporator are corrosion, fouling of the heat exchanger tubes, and energy requirement to evaporate the water.