Abstract
A membrane bioreactor- reverse osmosis( MBR- RO) combined process is used for advanced treatment of coking wastewater from secondary biological treatment. The removal of MBR and RO units on the pollutants are investigated and effects of raw water conductivity and trans- membrane pressure on water yield and desalination rate in RO unit are discussed in detail. The experimental results prove that MBR- RO combined process runs steadily with good treatment effect,which can obtain stable effluent water quality and meet the requirements ofDesign Criterion of the Industrial Circulating Cooling Water Treatment( GB 50050—2007).
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