一种无机复合絮凝剂的制备及其对染料废水的处理

doi:10.6040/j.issn.1672-3961.0.2018.002

摘要/Abstract

摘要： 以FeCl₃·6H₂O,ZnSO₄·7H₂O,MgCl₂·6H₂O和Na₂SiO₃·9H₂O为主要原料,制备了聚合硅酸铁锌镁絮凝剂,通过对刚果红染料废水进行脱色实验,得出了制备过程中铁锌镁硅的最佳物质的量比,初始pH和絮凝剂用量对脱色率及污泥体积的影响。实验结果表明,制备聚合硅酸锌铁镁过程中,铁锌镁硅的最佳物质的量比为1∶4∶1∶2。聚合硅酸铁锌镁在pH为9.0~13.0变化过程中脱色率均在90%以上,特别是pH为10.0和11.0时脱色率达到了99%。一定pH条件下,聚合硅酸铁锌镁对刚果红溶液的脱色效果随着用量先增大再降低。实验过程中产生的污泥体积随着pH和絮凝剂用量的增大而增大,特别是当pH从11.0变化到12.0时,污泥体积增加了近3倍。相对于传统镁盐絮凝剂,聚合硅酸铁锌镁在处理染料废水时具有pH适用范围更宽且产生污泥体积更小的优势。

关键词: 刚果红, 染料废水, 聚合硅酸铁锌镁, 脱色率, 絮凝, 污泥体积

Abstract: With FeCl₃·6H₂O, ZnSO₄·7H₂O, MgCl₂·6H₂O and Na₂SiO₃·9H₂O as main materials, the flocculant poly-silicate ferric zinc magnesium was prepared. The optimal molar ratio of iron, zinc, magnesium and silicon and the impact of initial pH and flocculant dosage on the decolorization rate and sludge volume were investigated through the decolorization experiment of Congo red wastewater. The results showed that the optimal molar ratio of Fe, Zn, Mg and Si was 1∶4∶1∶2. The decolorization rate was higher than 90% during the range of pH 9.0~13.0. Especially at pH=10.0 and 11.0, the decolorization rate reached 99%. Under a certain pH condition, the decolorization performance of the flocculant on the Congo red solution increased and then decreased with the addition of dosage. Sludge volume increased with the increase of pH and flocculant dosage. Especially when pH changed from 11.0 to 12.0, the sludge volume increased nearly 3 times. Compared with the traditional magnesium salt flocculant, poly-silicate ferric zinc magnesium had the advantages of wider pH application range and smaller sludge volume when treating dye wastewater.

Key words: decolorization rate, poly-silicate ferric zinc magnesium, sludge volume, flocculation, Congo red, dye wastewater

中图分类号:

X703.5

孙树青,孙丰凯,梁爽,徐晓丽. 一种无机复合絮凝剂的制备及其对染料废水的处理[J]. 山东大学学报(工学版), 2018, 48(2): 128-133.

SUN Shuqing, SUN Fengkai, LIANG Shuang, XU Xiaoli. Preparation of an inorganic composite flocculant and its effect on dye wastewater treatment[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2018, 48(2): 128-133.

参考文献

[1] 李庆云,韩洪晶.偶氮类染料废水处理技术的研究进展[J]. 当代化工,2016,45(9):2217-2221. LI Qingyun, HAN Hongjing. Research progress in the treatment technology of azo dying wastewater[J]. Contemporary Chemical Industry, 2016, 45(9):2217-2221.
[2] 徐言慧,尹显洪,邱江源,等.多孔材料Cu₃(BTB)₂和H₂O₂处理偶氮染料废水及机理[J].资源与环境化工,2017,36(12): 4700-4707. XU Yanhui, YIN Xianhong, QIU Jiangyuan, et al. Application and mechanism of azo dye wastewater treatment using Cu₃(BTB)₂ and H₂O₂[J].Chemical Industry and Engineering Progress, 2017, 36(12):4700-4707.
[3] 方涛,徐霞,邓丽娟,等.光电催化氧化法脱色处理刚果红染料废水[J].化工环保,2014,34(6):515-519. FANG Tao, XU Xia, DENG Lijuan, et al. Decolorization of dye wastewater containing Congo red by photoelectrocatalytic oxidation process[J].Environmental Protection of Chemical Industry, 2014, 34(6):515-519.
[4] 王亚丽,马文娇,刘世巍.固定化HPR催化降解染料废水中的刚果红[J].湖北农业科学,2015,54(18):4441-4445. WANG Yali, MA Wenjiao, LIU Shiwei. Degradation of Congo red dye in wastewater catalyzed by immobilized horseradish peroxidase[J]. Hubei Agricultural Sciences, 2015, 54(18):4441-4445.
[5] 贾雷峰,董磊,胡红星,等.刚果红染料废水的Cu/γ-Al₂O₃催化降解[J].广东化工,2016,43(1):101-103. JIA Leifeng, DONG Lei, HU Hongxing, et al. Cu/γ-Al₂O₃ degradation of Congo red dye wastewater[J]. Guangdong Chemical Industry, 2016, 43(1):101-103.
[6] GAO B Y, WANG Y, YUE Q Y, et al.The size and coagulation behavior of a novel composite inorganic—organic coagulant[J].Separation and Purification Technology, 2008, 62(3):544-550.
[7] 周树辉,黄佳丽,刘倩,等.无机-天然有机复合絮凝剂的研究进展[J].山东化工,2017,46(16):64,70. ZHOU Shuhui, HUANG Jiali, LIU Qian, et al.The research progress of inorganic-atural organic composite flocculant[J].Shandong Chemical Industry, 2017, 46(16):64,70.
[8] 魏锦程,高宝玉,王燕,等.聚合铁复合絮凝剂用于城镇纳污河河水化学强化处理的性能及机理研究[J].精细化工,2008,25(2):171-177. WEI Jincheng, GAO Baoyu, WANG Yan, et al. Study of performance and mechanism of polyferric-organic composite flocculants in chemically enhanced treatment of wastewater received by Urban Rivers[J]. Fine Chemicals, 2008, 25(2):171-177.
[9] 丛涛泉,丁璐,毛泽星,等.聚硅酸金属盐类絮凝剂的研究进展[J].当代化工,2014,43(1):48-50. CONG Taoquan, DING Lu, MAO Zexing, et al. Research progress in metal-polysilicate flocculants[J]. Contemporary Chemical Industry, 2014, 43(1):48-50.
[10] 蒋明龙. 聚硅酸盐类絮凝剂的制备及性能[J].石化技术与应用,2016,34(3):216-220. JIANG Minglong. Preparation and performance of polysilicate flocculant[J]. Petrochemical Technology & Application, 2016, 34(3):216-220.
[11] 康万里,傅敏.含硼聚硅酸铁锌絮凝剂的制备及其性能研究[J].广州化工,2015,43(19):53-57. KANG Wanli, FU Min. Study on the preparation and properties of polysilicate-iron-sulphate-zinc containing boron flocculants[J].Guangzhou Chemical Industry, 2015, 43(19):53-57.
[12] WEN Yanxin, DING Aimin, DONG Ling, et al. Characterisation and coagulation performance of an inorganic coagulant-poly-magnesium-silicate-chloride in treatment of simulated dyeing wastewater[J].Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2015, 470(12):137-141.
[13] 俞小勇,戎爱芸.聚硅酸镁盐絮凝剂对印染废水的脱色研究[J].广东化工,2011,38(1):125-126. YU Xiaoyong, RONG Aiyun. Color removal from dyeing wastewater using polymeric magnesium silicate-sulfate and polymeric aluminum magnesium silicate-sulfate[J]. Guangdong Chemical Industry, 2011, 38(1):125-126.
[14] GAO B Y, YUE Q Y, WANG Y, et al. Color removal from dye-containing wastewater by magnesium chloride[J]. Journal of Environmental Management, 2007, 82(2):167-172.
[15] 张钢,范先媛,朱小丽,等.聚硅酸铝铁复合絮凝剂性能的研究[J].环境科学与技术,2012,35(8):185-188. ZHANG Gang, FAN Xianyuan, ZHU Xiaoli, et al. Coagulation behavior of polysilicate aluminum ferric sulfate composite flocculant[J].Environmental Science & Technology, 2012, 35(8):185-188.
[16] 韩清芬,王雪枫,马风云,等.聚硅锌絮凝剂的研制和性能[J].新疆大学学报(自然科学版),2012,29(3): 328-332. HAN Qingfen, WANG Xuefeng, MA Fengyun, et al. Preparation and performance for poly-zinc-silicate-sulfate flocculant[J]. Journal of Xinjiang University(Natural Science Edition), 2012, 29(3):328-332.
[17] XU X, SHEN R Y, LIANG Y T, et al.Characterisation and coagulation performance of polysilicate-ferric-zinc[J].Chemical Papers, 2015, 69(6):864-871.
[18] 陈建.无机高分子絮凝剂的研究进展简述[J].廊坊师范学院学报(自然科学版),2016,16(1):70-72. CHEN Jian. Research progress of inorganic polymer flocculants[J]. Journal of Langfang Teachers University(Natural Science Edition), 2016, 16(1):70-72.
[19] WEI Y X, JI Q Z, CHEN L, et al. Preparation of an inorganic coagulant-polysilicate—magnesium for dyeing wastewater treatment: Effect of acid medium on the characterization and coagulation performance[J]. Journal of the Taiwan Institute of Chemical Engineers, 2017, 72(3):142-148.
[20] 李巍,毛泽星,杨双春,等.Al-Fe-Zn聚硅酸絮凝剂制备的研究[J].应用化工,2017,46(9):1738-1741. LI Wei, MAO Zexing, YANG Shuangchun, et al. Research on Al-Fe-Zn cation polysilicate flocculant[J]. Applied Chemical Industry, 2017, 46(9):1738-1741.
[21] 王元宏,魏群山,季有知,等.聚硅酸铝镁锌混凝剂的制备及去除抗生索性能和机理初探[J].安全与环境学报,2017,17(3): 1057-1063. WANG Yuanhong, WEI Qunshan, JI Youzhi, et al. Preparation of inorganic polymer coagulant-PSAMZ and the mechanism for its antibiotics removing performance[J].Journal of Safety and Environment, 2017, 17(3):1057-1063.
[22] 付英. 聚硅酸铁(PSF)Si-Fe反应机制及水解规律[D].哈尔滨:哈尔滨工业大学,2007. FU Ying. Preparation and coagulation mechanism of poly-silicic-ferric(PSF)coagulant[D]. Harbin:Harbin Institute of Technology, 2007.
[23] 高宝玉,滕素玲.氯化镁用于染料废水的脱色研究[J].山东大学学报(理学版),1993,28(3):327-335. GAO Baoyu, TENG Suling. Study on decolorization of dye wastewater with magnesium chloride[J].Journal of Shandong University(Natural Science), 1993, 28(3):327-335.
[24] 杨萍,迟姚玲,蒋进元,等.铁硅摩尔比对聚合硅酸铁的聚合机制及混凝效果的影响[J].当代化工,2016,45(12):2717-2720. YANG Ping, CHI Yaoling, JIANG Jinyuan, et al. Effect of Fe/Si molar ratio on the polymerization mechanism and coagulation efficiency of polymeric ferric silicate[J]. Contemporary Chemical Industry, 2016, 45(12):2717-2720.
[25] LIN Q, PENG H, ZHONG S, et al. Synthesis, characterization, and secondary sludge dewatering performance of a novel combined silicon-aluminum-iron-starch flocculant[J]. Journal of Hazardous Materials, 2015, 285:199-206.
[26] 王雪枫,俞静,黄雪莉.聚硅酸锌絮凝剂絮凝性能及水中残锌量的研究[J].环境科学与技术,2014,37(9):145-149. WANG Xuefeng, YU Jing, HUANG Xueli. Performance of poly-zinc silicate sulfate as flocculating agent and residual zinc in water[J]. Environmental Science & Technology, 2014, 37(9):145-149.
[27] 王润楠,张浩,连丽丽,等.新型聚硅酸铝锌-淀粉复合絮凝剂的制备及其表征[J].硅酸盐通报,2017,36(9):3119-3124. WANG Runnan, ZHANG Hao, LIAN Lili, et al. Synthesis and Characterization of a Novel Composite Flocculant PSiAZ-St[J].Bulletin of the Chinese Ceramic Society, 2017, 36(9):3119-3124.

多维度评价

Viewed

Full text

Abstract

Cited

Shared

Discussed