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RO+NF+MF Process Advantage
- Jun 27, 2018 -

RO+NF+MF Process Advantage

1 Low operating energy consumption

This process uses anaerobic treatment to reduce the subsequent aerobic treatment load and reduce operating costs. The power consumption is the main cost of the aerobic process. In this process, membrane-type microporous aerators with higher oxygen utilization efficiency are selected. The utilization of oxygen can generally reach 30%, which is much higher than that of other aeration devices. Oxygen utilization. Selecting an integrated MBR with low energy consumption, the power consumption is 0.2 to 0.4 kW·h/m 3 , which is only about 1/10 of the split type.

2 flexible operation

In the initial stage of operation, the low-concentration leachate can directly enter the MBR and nanofiltration unit without passing through the intermediate temperature anaerobic reactor. The reverse osmosis device is added on the basis of the nanofiltration device so that the water quality of the system can be guaranteed to meet the standard. Since the nanofiltration water has undergone a desalination, the pressure required for the reverse osmosis system will be very small, and the reverse osmosis membrane will be protected. The water production rate can also be increased relatively. In addition, if the filtered water satisfies the effluent water quality standard, the subsequent reverse osmosis unit can be closed to reduce energy consumption and save operating costs.

3 Less secondary pollution

The process adopts a combination of biochemical treatment and materialized treatment. The use of intermediate-temperature anaerobic and MBR can thoroughly degrade pollutants and reduce the amount of pollutants and the degree of harm. The amount of sludge produced by this process is far less than other processes, especially those that simply use physical and chemical treatment. The small amount of sludge produced can be recharged to control its environmental hazards.

The leachate treatment process fully exploits the functional complementarity of the three membrane processes of microfiltration, nanofiltration, and reverse osmosis, ensures the stable and efficient operation of the membrane components, is easy to combine, and has strong operability.