微泡臭氧处理反渗透浓缩液与剩余污泥混合液的试验研究

Experimental Study on Disintegration of The Mixture of RO Concentrate and Excess Sludge by Microbubbles Ozonation

采用微泡臭氧接触池,探讨了微泡臭氧氧化对反渗透(RO)浓缩液和剩余污泥处理效果。结果表明,随着臭氧投加量的增加,处理液的SS、色度下降较快,COD则有先小幅上升再下降的趋势,但当臭氧增加到某一程度时,由于臭氧的矿化作用使得处理液的SS、COD、色度都趋于稳定。臭氧最适投加量为185 mg O3/L。

The effect of mierobubbles ozonation on the mixture of RO concentrate and excess sludge was investigated in a bubble contact tank. The results showed that the treatment solution of SS and color decreased rapidly, and the concentration of COD was first increased slightly and then decreased with the increase of ozone dosage. Moreover, when the concentration of ozone increased to a certain extent, the treatment solution of SS, Color and COD are stabilized due to mineralization. The optimum dosage of ozone is 185 mgO3/L,