2025年 02期

Preparation of Polyferric-titanium Chloride Flocculants and Coagulation Characteristics

摘要(Abstract):

针对传统聚合形态絮凝剂制备存在费时、费力及无法调控水解聚合微界面等问题,采用电渗析法合成聚合氯化铁钛絮凝剂,采用Ferron逐时络合比色法、傅里叶变换红外光谱、碱化度和Zeta电位表征絮凝剂的形态结构,通过混凝实验探究聚合氯化铁钛絮凝剂最佳合成条件及混凝动力学。结果表明,制备的聚合氯化铁钛絮凝剂的聚合程度大,碱化度高,电中和能力强;铁元素与钛元素的物质的量比为1∶0.5的絮凝剂混凝效果最好,该絮凝剂具有絮体生长速度快、絮体粒径大以及抗剪切力和恢复能力强等优点。

关键词(KeyWords):水处理;混凝;聚合氯化铁钛絮凝剂;电渗析;混凝动力学

基金项目(Foundation):山东省泰山学者青年专家计划项目(tsqn202103080);; 山东省高等学校青创科技支持计划项目(2021KJ043)

作者(Author): 牟俊郦,王清民,杨焱明,赵艳侠

DOI: 10.13349/j.cnki.jdxbn.20240524.002

参考文献(References):

[1] 董红钰.铁盐混凝剂中铁形态对混凝-超滤联用工艺的影响[D].济南:山东大学,2015.

[2] 潘思茹.铁盐混凝剂对混凝-微滤工艺膜污染的影响研究[D].北京:北京交通大学,2011.

[3] 沈雪.复合混凝剂对混凝-超滤工艺水处理效能和膜污染的影响[D].济南:山东大学,2020.

[4] 高宝玉,黄鑫,姚广平,等.钛盐混凝剂的研究进展[J].山东大学学报(工学版),2020,50(1):109.

[5] SUN Y J,ZHU C Y,ZHENG H L,et al.Characterization and coagulation behavior of polymeric aluminum ferric silicate for high-concentration oily wastewater treatment[J].Chemical Engineering Research and Design,2017,119:23.

[6] 刘霜.聚合硫酸铁钛复合混凝剂的研制及处理印染废水的试验研究[D].重庆:重庆大学,2019.

[7] HUANG X,SUN S L,GAO B Y,et al.Coagulation behavior and floc properties of compound bioflocculant-polyaluminum chloride dual-coagulants and polymeric aluminum in low temperature surface water treatment[J].Journal of Environmental Sciences,2015,30:215.

[8] 赵旭,连会情,赵艳侠,等.稀释和熟化对钛盐絮凝效果及混凝机制的影响[J].济南大学学报(自然科学版),2023,37(4):415.

[9] CHI Y T,TIAN C,LI H B,et al.Polymerized titanium salts for algae-laden surface water treatment and the algae-rich sludge recycle toward chromium and phenol degradation from aqueous solution[J].ACS Sustainable Chemistry & Engineering,2019,7(15):12964.

[10] CHEKLI L,CORJON E,TABATABAI S A A,et al.Performance of titanium salts compared to conventional FeCl3 for the removal of algal organic matter(AOM) in synthetic seawater:coagulation performance,organic fraction removal and floc characteristics[J].Journal of Environmental Management,2017,201:28.

[11] ZHAO Y X,PHUNTSHO S,GAO B Y,et al.Preparation and characterization of novel polytitanium tetrachloride coagulant for water purification[J].Environmental Science & Technology,2013,47(22):12966.

[12] WANG X M,LI M H,SONG X J,et al.Preparation and evaluation of titanium-based xerogel as a promising coagulant for water/wastewater treatment[J].Environmental Science & Technology,2016,50(17):9619.

[13] SEDIGHI M,BEHVAND USEFI M M,ISMAIL A F,et al.Environmental sustainability and ions removal through electrodialysis desalination:operating conditions and process parameters[J].Desalination,2023,549:116319.

[14] CHEN Q,XUE C,ZHANG W M,et al.Green production of ultrahigh-basicity polyaluminum salts with maximum atomic economy by ultrafiltration and electrodialysis with bipolar membranes[J].Industrial & Engineering Chemistry Research,2014,53(34):13467.

[15] 连会情.高效聚钛基盐絮凝剂的电化学合成及性能研究[D].济南:济南大学,2022.

[16] LIAN H Q,ZHAO Y X,TIAN C,et al.Innovative synthesis of polytitanium chloride by electrodialysis:identification of Ti-based hydroxyl polymers and coagulation performance[J].Journal of Water Process Engineering,2022,47:102684.

[17] 王清民,赵艳侠,许伟颖,等.聚铝钛基絮凝剂的电化学合成及其混凝行为和絮体特性研究[J].环境工程,2023,41(增刊1):139-140.

[18] WANG D S,TANG H X.Modified inorganic polymer flocculant-PFSi:its preparation,characterization and coagulation behavior[J].Water Research,2001,35(14):3423.