ABSTRACT The efficacies of ozonation and peroxone (O3/H2O2) pretreatments were compared for citric acid wastewater sludge conditioning with the objective of improving dewatering characteristics of the sludge. Treatment with 84 mg O3/g dry solid (DS) and 12.5 mg/g DS H2O2 greatly enhanced the effectiveness of ozonation, providing sludge dewaterability similar to that obtained by ozonation at 250 mg O3/g DS. Most importantly, treatment of citric acid wastewater sludge with 84 mg O3/g DS and 12.5 mg/g DS H2O2 led to the preservation of the nutrient elements nitrogen, phosphorus, and potassium in the sludge with a minimal volatile suspended solids/total suspended solids reduction of 5.5%, which is much lower than that with ozonation at 250 mg O3/g DS.

中文翻译：

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臭氧和过氧化氢提高柠檬酸废水处理污泥的脱水性和其他性能

摘要 臭氧和过氧酮 (O3/H2O2) 预处理对柠檬酸废水污泥调理的效果进行了比较，目的是改善污泥的脱水特性。用 84 mg O3/g 干固体 (DS) 和 12.5 mg/g DS H2O2 处理大大提高了臭氧化的效果，提供的污泥脱水能力与在 250 mg O3/g DS 下通过臭氧化获得的相似。最重要的是，用 84 mg O3/g DS 和 12.5 mg/g DS H2O2 处理柠檬酸废水污泥导致污泥中营养元素氮、磷和钾的保存，同时挥发性悬浮固体/总悬浮固体含量极低减少 5.5%，远低于臭氧化 250 mg O3/g DS。