Experimental Study on Slow Release Persulfate in Coordination with Microbial Degradation of Pollutants in Water
In this work,paraffin-coated persulfate(PS)slow-release materials were prepared,batch tests of nano-zero-valent iron(nZVI)activated PS slow-release materials were designed,the effects of factors such as the mass ratio of PS to pollutants,the mass ratio of PS to paraffin,and the mass ratio of nZVI to PS on the degradation of 2,4-dichlorophenol in water were studied.Cooperating with microorganisms to carry out degradation tests,and the effects of PS slow-release materials on the living environment of microorganisms were studied.The results showed that when the mass ratio of PS to 2,4-dichlorophenol was 70,and the mass ratio of PS,paraffin and nZVI was 3∶1∶2.4,the slow-release system had the best degradation effect on 2,4-dichlorophenol,and the degradation rate could reach more than 90％within 312 hours.It can further improve the degradation rate of 2,4-dichlorophenol close to 100％,indicating that the slow-release material can be used in water polluted by 2,4-dichlorophenol without damaging the living environment of microorganisms.
万方数据
维普
