A pilot study on the advanced membrane concentration process(AMCP)is conducted for the treatment of reverse osmosis concentrate brine in a zero discharge system of desulfurization wastewater from coal-fired power plants.Through 168 hours of continuous operation,the feasibility of concentrating brine salinity to over 100 g·L-1 using AMCP at an operating pressure of 6-7 MPa is verified.It is revealed by the spot continuous pilot-scale test that AMCP has the features such as high concentration limit,low operating pressure,and stable system operation,and can be used for the reduction treatment of reverse osmosis concentrated brine.
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