Research progress of zero valent iron and its composite materials in wastewater treatment
Modifications of zero-valent iron (ZVI) and its composites are presented,including cladding,loading,bimetallic,and vulcanisation. The mechanism of zero-valent iron treatment of wastewater,and the modification and application of its composites are discussed,and the problems existing in the application are analysed. The ZVI composites prepared by various modification methods can not only slow down the agglomeration of ZVI,increase the surface active area,but also can improve the treatment effect and stability of target pollutants. The stability of ZVI-modified materials and the synergistic solution of water pollution problems with microorganisms are proposed to be one of the key contents of future research.
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