万杨2,
黄鑫3,
石宝友3,4,
耿建刚5,
华平2
1.南通大学分析测试中心,南通 226019
2.南通大学纺织服装学院,南通 226019
3.中国科学院生态环境研究中心,中国科学院饮用水科学与技术重点实验室,北京 100085
4.中国科学院大学,北京 100049
5.山东中科天泽净水材料有限公司,淄博 256406
基金项目: 国家自然科学基金资助项目21177067国家自然科学基金资助项目(21177067)
Treating dyeing wastewater with a kind of polyferric titanium sulfate
SHI Jian1,,WAN Yang2,
HUANG Xin3,
SHI Baoyou3,4,
GENG Jiangang5,
HUA Ping2
1.Analysis & Testing Center, Nantong University, Nantong 226019, China
2.School of Textile, Nantong University, Nantong 226019, China
3.Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
5.Shandong Zhongke Tianze Water Purification Material Co.Ltd., Zibo 256406, China
-->
摘要
HTML全文
图
参考文献
相关文章
施引文献
资源附件
访问统计
摘要:采用钛铁矿为主要原料,以硫酸溶出部分铁和钛,并调节Ti/Fe比、碱化度制备高效的新型含钛聚合硫酸铁混凝剂(T-PSF),将其用于分散兰和活性黄2种模拟印染废水的脱色处理并研究其混凝去除机理。实验结果表明,在Ti/Fe为1∶6和碱化度为2.0时,制备出的T-PSF混凝效果最好。T-PSF对分散兰的去除率为94.3%,比FeCl3的去除率提高53.8%;对活性黄的去除率为34.0%,比FeCl3提高12.7%。T-PSF处理分散兰和活性黄的最佳投加量均为0.3 mmol·L-1,最佳水样初始pH分别为6和8。絮体粒径及结构分析结果表明,T-PSF处理分散兰过程中形成的絮体粒径较FeCl3大,处理活性黄过程中所形成的絮体粒径较FeCl3小,但絮体结构均比FeCl3更密实。结合T-PSF的表征、Zeta电位及絮体特性分析表明,在分散染料去除过程中,T-PSF产生的多羟基钛铁聚合物的电中和及吸附架桥起主要作用;对于活性染料的去除,主要机制为T-PSF水解产生的带正电的多羟基钛铁聚合物的吸附络合作用。
关键词: 混凝剂/
印染废水/
絮体/
混凝机理
Abstract:In this study, a new polyferric-titanium sulfate coagulant (T-PSF) was prepared through dissolving a part of iron and titanium from ilmenite with sulfuric acid and adjusting Ti/Fe ratio and basicity. The T-PSF was used to treat two kinds of simulated dye wastewater (disperse blue and reactive yellow), and its coagulation mechanisms were also discussed. The results showed that T-PSF had a good coagulation performance with the Ti/Fe ratio of 1∶6 and basicity of 2.0. The removal efficiencies of disperse blue and reactive yellow by T-PSF coagulation were 94.3% and 34.0%, which were 53.8% and 12.7% higher than those by FeCl3 coagulation, respectively. For disperse blue and reactive yellow removal, the optimal T-PSF dosages were 0.3 mmol·L-1 and the optimum pHs were 6 and 8, respectively. In compared with flocs during FeCl3 coagulating dyes, larger and more compact ones occurred during T-PSF coagulating disperse blue, while smaller and more compact one occurred during T-PSF coagulating reactive yellow. In combination with T-PSF characterization, Zeta potential and other properties of flocs, charge neutralization and bridging of polyhydroxy-ferrotitanium polymers through T-PSF hydrolysis were identified as playing a key role in disperse dyes removal, while the adsorption and complexation of positively charged polyhydroxy-ferrotitanium polymers through T-PSF hydrolysis were identified as playing a key role in reactive dyes removal.
Key words:coagulant/
dyeing wastewater/
floc/
coagulation mechanism.
[1] | KATHERESAN V, KANSEDO J, |
[2] | 任南琪, 周显娇, 郭婉茜, 等. 染料废水处理技术研究进展[J]. 化工学报, 2013, 64(1): 84-94. |
[3] | 韩志勇, 韩昆, 郝昊天, 等. 铜铁氧体法处理模拟染料废水[J]. 环境科学, 2018, 39(3): 1195-1201. |
[4] | YAGUB M T, |
[5] | DUAN J, GREGORY J. Coagulation by hydrolysing metal salts[J]. Advances in Colloid and Interface Science, 2003, 100: 475-502. |
[6] | LEI G, |
[7] | OKOUR Y, SHON H K, |
[8] | CHEN W, ZHENG H, GUO J, et al. Preparation and characterization of a composite coagulant: Polyferric titanium sulfate[J]. Water, Air & Soil Pollution, 2016, 227(3): 79. |
[9] | 薛文文. 聚硫酸铁钛混凝剂(PFTS)的制备及其在饮用水处理中的应用[D]. 重庆: 重庆大学, 2015. |
[10] | 苏漫漫. 钛铁类净水剂的研发及在废水中的应用效果[D]. 济南: 济南大学, 2015. |
[11] | 陈伟. 铁钛混凝剂的制备及在除藻和控制藻源膜污染中的应用研究[D]. 重庆: 重庆大学, 2016. |
[12] | ZHAO S, GAO B, YUE Q, et al. Study of enteromorpha polysaccharides as a new-style coagulant aid in dye wastewater treatment[J]. Carbohydrate Polymers, 2014, 103(3): 179-186. |
[13] | 黄鑫. 聚合钛盐混凝剂的研究[D]. 济南: 山东大学, 2017. |
[14] | 陈伟, 郑怀礼, 翟俊, 等. 聚合硫酸铁钛混凝剂的制备及红外、紫外-可见光谱分析[J]. 光谱学与光谱分析, 2016, 36(4): 1038-1043. |
[15] | 曾超. 铁碳微电解-混凝深度处理印染废水作用机制研究[D]. 上海: 东华大学, 2015. |
[16] | LI R, GAO B, GUO K, et al. Effects of papermaking sludge-based polymer on coagulation behavior in the disperse and reactive dyes wastewater treatment[J]. Bioresource Technology, 2017, 240: 59-67. |
[17] | 孙勇. 粉煤灰提取液合成聚硅铁混凝剂及铅絮体分形研究[D]. 济南: 济南大学, 2011. |
[18] | GREGORY J, DUPON V. Properties of flocs produced by water treatment coagulants[J]. Water Science & Technology, 2001, 44(10): 231-236. |
[19] | 赵艳侠. 钛盐混凝剂的混凝行为、作用机制、絮体特性和污泥回用研究[D]. 济南: 山东大学, 2014. |
Turn off MathJax -->
点击查看大图
计量
文章访问数:1423
HTML全文浏览数:1326
PDF下载数:115
施引文献:0
出版历程
刊出日期:2019-06-03
-->
聚合铁钛混凝剂对印染废水的处理
石健1,,万杨2,
黄鑫3,
石宝友3,4,
耿建刚5,
华平2
1.南通大学分析测试中心,南通 226019
2.南通大学纺织服装学院,南通 226019
3.中国科学院生态环境研究中心,中国科学院饮用水科学与技术重点实验室,北京 100085
4.中国科学院大学,北京 100049
5.山东中科天泽净水材料有限公司,淄博 256406
基金项目: 国家自然科学基金资助项目21177067国家自然科学基金资助项目(21177067)
关键词: 混凝剂/
印染废水/
絮体/
混凝机理
摘要:采用钛铁矿为主要原料,以硫酸溶出部分铁和钛,并调节Ti/Fe比、碱化度制备高效的新型含钛聚合硫酸铁混凝剂(T-PSF),将其用于分散兰和活性黄2种模拟印染废水的脱色处理并研究其混凝去除机理。实验结果表明,在Ti/Fe为1∶6和碱化度为2.0时,制备出的T-PSF混凝效果最好。T-PSF对分散兰的去除率为94.3%,比FeCl3的去除率提高53.8%;对活性黄的去除率为34.0%,比FeCl3提高12.7%。T-PSF处理分散兰和活性黄的最佳投加量均为0.3 mmol·L-1,最佳水样初始pH分别为6和8。絮体粒径及结构分析结果表明,T-PSF处理分散兰过程中形成的絮体粒径较FeCl3大,处理活性黄过程中所形成的絮体粒径较FeCl3小,但絮体结构均比FeCl3更密实。结合T-PSF的表征、Zeta电位及絮体特性分析表明,在分散染料去除过程中,T-PSF产生的多羟基钛铁聚合物的电中和及吸附架桥起主要作用;对于活性染料的去除,主要机制为T-PSF水解产生的带正电的多羟基钛铁聚合物的吸附络合作用。
English Abstract
Treating dyeing wastewater with a kind of polyferric titanium sulfate
SHI Jian1,,WAN Yang2,
HUANG Xin3,
SHI Baoyou3,4,
GENG Jiangang5,
HUA Ping2
1.Analysis & Testing Center, Nantong University, Nantong 226019, China
2.School of Textile, Nantong University, Nantong 226019, China
3.Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
5.Shandong Zhongke Tianze Water Purification Material Co.Ltd., Zibo 256406, China
Keywords: coagulant/
dyeing wastewater/
floc/
coagulation mechanism
Abstract:In this study, a new polyferric-titanium sulfate coagulant (T-PSF) was prepared through dissolving a part of iron and titanium from ilmenite with sulfuric acid and adjusting Ti/Fe ratio and basicity. The T-PSF was used to treat two kinds of simulated dye wastewater (disperse blue and reactive yellow), and its coagulation mechanisms were also discussed. The results showed that T-PSF had a good coagulation performance with the Ti/Fe ratio of 1∶6 and basicity of 2.0. The removal efficiencies of disperse blue and reactive yellow by T-PSF coagulation were 94.3% and 34.0%, which were 53.8% and 12.7% higher than those by FeCl3 coagulation, respectively. For disperse blue and reactive yellow removal, the optimal T-PSF dosages were 0.3 mmol·L-1 and the optimum pHs were 6 and 8, respectively. In compared with flocs during FeCl3 coagulating dyes, larger and more compact ones occurred during T-PSF coagulating disperse blue, while smaller and more compact one occurred during T-PSF coagulating reactive yellow. In combination with T-PSF characterization, Zeta potential and other properties of flocs, charge neutralization and bridging of polyhydroxy-ferrotitanium polymers through T-PSF hydrolysis were identified as playing a key role in disperse dyes removal, while the adsorption and complexation of positively charged polyhydroxy-ferrotitanium polymers through T-PSF hydrolysis were identified as playing a key role in reactive dyes removal.