成型聚铝污泥吸附剂处理实际尾水及再生研究  

Application and Regeneration of Manufactured Polyaluminum Chloride Sludge( PACS) in Treatment of Wastewater Treatment Effluent

作　　者：蒋曙兰 吴慧芳[1] 段二高 

机构地区：[1]南京工业大学城市建设学院,江苏南京211816

出　　处：《中国给水排水》2017年第9期101-103,共3页China Water & Wastewater

基　　金：污染控制与资源化研究国家重点实验室开放课题(PCRRF13018);江苏省高校自然科学研究重大项目(12KJA610001);住建部科技计划项目(2014-K7-010)

摘　　要：成型聚铝污泥对阴离子具有良好的亲和吸附能力,可作为水处理领域的吸附剂。以印染废水尾水为处理对象,采用成型聚铝污泥吸附经Fenton氧化后的尾水,在pH值=4.0、FeSO_4·7H_2O用量为56 mg/L、H_2O_2用量为0.2 m L/L、反应时间为120 min、聚铝污泥吸附剂投加量为20 g/L、进水COD和TP分别为114和1.85 mg/L的条件下,出水COD和TP分别为44、0.46 mg/L。分别用酸碱和Fenton技术对吸附饱和的聚铝污泥进行再生试验,在pH值=3.0、FeSO_4·7H_2O投加量为40 mg/L的条件下,当H_2O_2投加量为0.3 m L/L时,Fenton氧化对聚铝污泥的再生率几乎可达到100%。The manufactured polyaluminum chloride sludge （PACS） has good affinity and adsorp- tion capacity on anions. Therefore, it can be used as an adsorbent in the field of wastewater treatment. This study took textile dyeing wastewater treatment effluent as a research object, and treated with the Fen- ton oxidation and the manufactured PACS, to reduce COD and TP to reach discharge standards. When the pH was 4.0, FeSO4 · 7H20 dosage was 56 mg/L, H2O2 dosage was 0.2 mL/L, reaction time was 120 min, manufactured PACS dosage was 20 g/L, COD and TP of the influent were 114 mg/L and 1.85 rag/L, the COD and TP of the final effluent was 44 mg/L and 0.46 mg/L, respectively. The regenera- tion of saturated adsorbent with alkali-acid and Fenton technologies was tested. Under the conditions of the pH of 3.0, H202 dosage of 0.3 mL/L, and FeSO4 · 7H20 dosage of g0 rag/L, the Fenton technolo- gy regenerated almost 100% of the adsorption efficiency of the manufactured PACS.

关 键 词：聚铝污泥 FENTON氧化 吸附 再生 

分 类 号：X703[环境科学与工程—环境工程]