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1. 上海大学环境与化学工程学院
2. 上海市水利管理处
纸质出版:2009
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蓝伟, 邱慧琴, 张洁, 等. 稳定剂对聚合氯化铁铝(PFAC)特性的影响[J]. 中北大学学报(自然科学版), 2009,30(4):365-369.
蓝伟, 邱慧琴, 张洁, et al. Effect of Stabilization Agent on the Characteristic of Polyferric Aluminum Chloride[J]. 2009, 30(4): 365-369.
以盐酸酸洗废液为主要原料
添加少量的铝酸钙粉
经氧化、酸溶、聚合、稳定过程
制备聚合氯化铁铝(PFAC)无机高分子复合混凝剂.利用Ferron逐时络合比色法、微电泳技术和超滤法研究磷酸钠稳定剂对PFAC形态分布、电动特性和相对分子质量分布的影响.结果表明:磷酸钠的引入
使PFAC中Fe()的某些水解形态发生了较大变化
单体Fe(a)减少
中间多核羟基络合物Fe(b)和高聚物Fe(c)均增加
而Fe()的各水解形态与磷酸根的络合作用又阻滞了大量高聚物Fe(c)的生成
使PFAC具有更好的稳定性;磷酸钠的引入
使PFAC的Zeta电位略有提高
PFAC的表观相对分子质量明显增大
表现为加磷酸钠的PFAC具有更优的混凝效能.
A composite inorganic polymer coagulant
polyferric aluminum chloride(PFAC)
was prepared with hydrochloric pickle liquor and calcium aluminate through the processes of oxidation
dissolution
polymerization and stabilization.The effect of stabilization agent on the species distribution
electrokinetic characteristic and molecular weight distribution of PFAC was investigated by Ferron-complexation timed spectrophotometer method
micro-electrophoretic technique and the ultrafiltration method respectively.Results indicate that with the addition of sodium phosphate
the Fe(Ⅲ) species in PFAC vary obviously
the monomer Fe(a) content decreases
both the intermediate multinuclear complex compounds Fe(b) content and the high polymer Fe(c) content increase.Because the complexation of PO43-and Fe(Ⅲ) species can prevent the creation of numerous Fe(c)
PFAC added with sodium phosphate gives a good stability.With the introduction of sodium phosphate the Zeta potential of PFAC increases smally and the apparent molecular weight of PFAC increases evidently
which make the coagulation performance of PFAC increasing.
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张占梅,郑怀礼,陈春艳.高铁铝矾土制备聚合氯化铝铁及其在污水处理中的应用研究[J].环境污染治理技术与设备,2006,7(6):52-55.Zhang Zhanmei,Zheng Huaili,Chen Chunyan.Preparation and application of polymerized aluminum ferrum chloridewith bauxite[J].Techniques and Equipment for Environmental Pollution Control,2006,7(6):52-55.(in Chinese)
郑怀礼,刘克万,龙腾锐.聚合氯化铝铁(PAFC)絮凝剂污水除磷的研究[J].环境化学,2005,24(6):693-695.Zheng Huaili,Liu Kewan,Long Tengrui.Study on polyaluminum ferric chloride for phosphorus removal inmunicipal wastewater[J].Environmental Chemistry,2005,24(6):693-695.(in Chinese)
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田宝珍,汤鸿霄.Ferron逐时络合比色法测定Fe()溶液聚合物的形态[J].环境化学,1989,8(4):27-34.Tian Baozhen,Tang Hongxiao.Determination of polymeric Fe()species by ferron-complexation timed spec-trophotometric method[J].Environmental Chemistry,1989,8(4):27-34.(in Chinese)
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戴亚英,邱慧琴.聚铁硅型混凝剂的形态分析及性能研究[J].环境污染治理技术与设备,2005,6(3):61-64.Dai Yaying,Qiu Huiqin.Speciation analysis and coagulation behavior of PFSS[J].Techniques and Equipment forEnvironmental Pollution Control,2005,6(3):61-64.(in Chinese)
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