Parameter optimization of coagulation and sedimentation for fine suspended solids removal from mine water

HOU Pin; QIN Haoming; LIU Hao; XV Dongying; JIA Shuhan; ZHANG Zhouai; WANG Jianbing

doi:10.19606/j.cnki.jmst.2024.02.014

Volume 9 Issue 2

Apr. 2024

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HOU Pin, QIN Haoming, LIU Hao, XV Dongying, JIA Shuhan, ZHANG Zhouai, WANG Jianbing. Parameter optimization of coagulation and sedimentation for fine suspended solids removal from mine water[J]. Journal of Mining Science and Technology, 2024, 9(2): 278-285. doi: 10.19606/j.cnki.jmst.2024.02.014

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Parameter optimization of coagulation and sedimentation for fine suspended solids removal from mine water

doi: 10.19606/j.cnki.jmst.2024.02.014

1.
School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
2.
Shenhuabao Rixile Energy Co, LTD, Hulunbuir Inner Mongolia 021025, China

Received Date: 2023-08-29
Rev Recd Date: 2023-11-28
Publish Date: 2024-04-30

Abstract

Abstract

In response to the issue of small particle size and difficult removal of suspended particles in the mine water of Baorixile open-pit coal mine, this study probed into the optimal parameters of the coagulation and precipitation process through single-factor and orthogonal experiments, and explored the mechanism behind the coagulation of fine particles in mine water.The optimal process parameters for coagulation and precipitation include: 50 mg/L of polyaluminum chloride (PAC), 5.0 mg/L of non-ionic polyacrylamide (NPAM) under 1 minute of rapid stirring (300 r/min), 8 minutes of slow stirring (50 r/min), and 5 minutes of settling.Under these optimum process conditions, the concentration of suspended solids (SS) is 5.0 mg/L with a removal efficiency of 99.1 %.Compared to the sole addition of PAC, the removal efficiency of fine particles below 10 μm increased by 25.9 %.Additionally, theζpotential of the mine water decreased from -40.9 mV to -16.3 mV, indicating that the coagulation mechanism of fine particles is mainly attributed to the adsorption and charge neutralization of PAC and the bridging effect of PAM.
- mine water,
- fine particles,
- suspended matter,
- coagulation and precipitation,
- parameter optimization,
- ζ potential,
- coagulation mechanism

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References(22)

References

[1]	王勇, 吴丽, 王雪冬. 化学混凝法处理阜新矿区矿井水试验研究[J]. 煤炭科学技术, 2017, 45(2): 203-208. https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ201702034.htm WANG Yong, WU Li, WANG Xuedong. Experimental study on chemical coagulation of mine water in Fuxin Mining Area[J]. Coal Science and Technology, 2017, 45(2): 203-208. https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ201702034.htm
[2]	景长勇, 张尊举, 雷兆武, 等. 磁混凝沉淀工艺处理煤矿矿井水实验研究[J]. 工业安全与环保, 2022, 48(10): 79-82, 99. https://www.cnki.com.cn/Article/CJFDTOTAL-GYAF202210019.htm JING Changyong, ZHANG Zunju, LEI Zhaowu, et al. Experimental study on treatment of coal mine water by magnetic coagulation sedimentation process[J]. Industrial Safety and Environmental Protection, 2022, 48(10): 79-82, 99. https://www.cnki.com.cn/Article/CJFDTOTAL-GYAF202210019.htm
[3]	陈雄山, 樊少武, 马超, 等. 混凝法去除矿井水浊度的试验研究[J]. 煤炭科学技术, 2010, 38(10): 118-120, 123. CHEN Xiongshan, FAN Shaowu, MA Chao, et al. Experiment study on coagulation method applied to reduce turbidity of mine water[J]. Coal Science and Technology, 2010, 38(10): 118-120, 123.
[4]	章丽萍, 吴胜念, 宋学京, 等. 难沉降钨矿选矿废水处理研究[J]. 矿业科学学报, 2020, 5(6): 687-695. doi: 10.19606/j.cnki.jmst.2020.06.012 ZHANG Liping, WU Shengnian, SONG Xuejing, et al. Study on treatment of difficult settling wastewater from tungsten mineral processing[J]. Journal of Mining Science and Technology, 2020, 5(6): 687-695. doi: 10.19606/j.cnki.jmst.2020.06.012
[5]	李福勤, 贾玉丽, 孟立, 等. 高悬浮物矿井水混凝试验及应用[J]. 能源环境保护, 2016, 30(3): 20-22. https://www.cnki.com.cn/Article/CJFDTOTAL-NYBH201603005.htm LI Fuqin, JIA Yuli, MENG Li, et al. Coagulation test and application of the high suspended solids mine water[J]. Energy Environmental Protection, 2016, 30(3): 20-22. https://www.cnki.com.cn/Article/CJFDTOTAL-NYBH201603005.htm
[6]	杨建, 王皓, 王甜甜, 等. 矿井水地下储存过程中典型污染组分去除规律: 以内蒙古敏东一矿为例[J]. 煤炭学报, 2020, 45(8): 2918-2925. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB202008023.htm YANG Jian, WANG Hao, WANG Tiantian, et al. Removal law of typical pollution components during underground storage of mine water: taking Mindong No. 1 Mine Inner Mongolia as an example[J]. Journal of China Coal Society, 2020, 45(8): 2918-2925. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB202008023.htm
[7]	WANG Xi, XV Hui, WANG Dongsheng. Mechanism of fluoride removal by AlCl₃ and Al₁₃: The role of aluminum speciation[J]. Journal of Hazardous Materials, 2020, 398: 122987. doi: 10.1016/j.jhazmat.2020.122987
[8]	SUN Cuizhen, QIU Jinwei, ZHANG Zhibin, et al. Coagulation behavior and floc characteristics of a novel composite poly-ferric aluminum chloride-polydimethyl diallylammonium chloride coagulant with different OH/(Fe³⁺ + Al³⁺) molar ratios[J]. Water Science and Technology: a Journal of the International Association on Water Pollution Research, 2016, 74(7): 1636-1643. doi: 10.2166/wst.2016.290
[9]	何绪文, 张晓航, 李福勤, 等. 煤矿矿井水资源化综合利用体系与技术创新[J]. 煤炭科学技术, 2018, 46(9): 4-11. https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ201809002.htm HE Xuwen, ZHANG Xiaohang, LI Fuqin, et al. Comprehensive utilization system and technical innovation of coal mine water resources[J]. Coal Science and Technology, 2018, 46(9): 4-11. https://www.cnki.com.cn/Article/CJFDTOTAL-MTKJ201809002.htm
[10]	郑铭灏, 赵飞, 张净瑞, 等. PAC-PAM复合絮凝剂处理燃煤电厂脱硫废水的研究[J]. 现代化工, 2022, 42(5): 178-182. https://www.cnki.com.cn/Article/CJFDTOTAL-XDHG202205034.htm ZHENG Minghao, ZHAO Fei, ZHANG Jingrui, et al. Study on PAC-PAM compound flocculant for treatment of desulfurization wastewater from coal-fired power plants[J]. Modern Chemical Industry, 2022, 42(5): 178-182. https://www.cnki.com.cn/Article/CJFDTOTAL-XDHG202205034.htm
[11]	朱阳阳, 金二锁, 宋君龙, 等. 两性聚丙烯酰胺的性质、合成与应用研究进展[J]. 化工进展, 2015, 34(3): 758-766, 789. https://www.cnki.com.cn/Article/CJFDTOTAL-HGJZ201503029.htm ZHU Yangyang, JIN Ersuo, SONG Junlong, et al. Progress in properties, synthesis and applications of amphoteric polyacrylamide[J]. Chemical Industry and Engineering Progress, 2015, 34(3): 758-766, 789. https://www.cnki.com.cn/Article/CJFDTOTAL-HGJZ201503029.htm
[12]	赵恒, 李望, 牛泽鹏, 等. 赤泥制备聚合氯化铝铁及其吸附性能研究[J]. 稀有金属与硬质合金, 2019, 47(5): 64-68, 82. https://www.cnki.com.cn/Article/CJFDTOTAL-XYJY201905014.htm ZHAO Heng, LI Wang, NIU Zepeng, et al. Preparation and adsorption properties of polyaluminum ferric chloride from red mud[J]. Rare Metals and Cemented Carbides, 2019, 47(5): 64-68, 82. https://www.cnki.com.cn/Article/CJFDTOTAL-XYJY201905014.htm
[13]	王东升, 安广宇, 刘丽冰, 等. Al₁₃的分子学及其在环境工程中的应用[J]. 环境工程学报, 2018, 12(6): 1565-1584. https://www.cnki.com.cn/Article/CJFDTOTAL-HJJZ201806002.htm WANG Dongsheng, AN Guangyu, LIU Libing, et al. Molecules of Al₁₃ and its application in environmental engineering[J]. Chinese Journal of Environmental Engineering, 2018, 12(6): 1565-1584. https://www.cnki.com.cn/Article/CJFDTOTAL-HJJZ201806002.htm
[14]	刘鹏宇, 夏传, 常青, 等. 聚合硫酸铁混凝消除水中有机氯的研究[J]. 中国环境科学, 2015, 35(8): 2382-2392. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGHJ201508021.htm LIU Pengyu, XIA Chuan, CHANG Qing, et al. The removal of OCPs in water by coagulation with poly ferric sulfate[J]. China Environmental Science, 2015, 35(8): 2382-2392. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGHJ201508021.htm
[15]	李庭, 李井峰, 杜文凤, 等. 国外矿井水利用现状及特点分析[J]. 煤炭工程, 2021, 53(1): 133-138. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ202101030.htm LI Ting, LI Jingfeng, DU Wenfeng, et al. Current status and characteristics of mine water reuse in foreign countries[J]. Coal Engineering, 2021, 53(1): 133-138. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ202101030.htm
[16]	李福勤, 豆硕超, 高珊珊, 等. 多重混凝沉淀处理高悬浮物矿井水试验及应用[J]. 煤炭工程, 2023, 55(4): 102-106. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ202304019.htm LI Fuqin, DOU Shuochao, GAO Shanshan, et al. Experiment and application of multiple coagulation and sedimentation treatment of mine water with high suspended solids[J]. Coal Engineering, 2023, 55(4): 102-106. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ202304019.htm
[17]	张海波, 陈岚岚, 杨艳平, 等. 聚丙烯酰胺的合成及应用研究进展[J]. 高分子材料科学与工程, 2016, 32(8): 177-181, 190. https://www.cnki.com.cn/Article/CJFDTOTAL-GFZC201608032.htm ZHANG Haibo, CHEN Lanlan, YANG Yanping, et al. Progress on synthesis and application of polyacrylamide[J]. Polymer Materials Science & Engineering, 2016, 32(8): 177-181, 190. https://www.cnki.com.cn/Article/CJFDTOTAL-GFZC201608032.htm
[18]	WANG Pin, JIAO Ruyuan, LIU Libing, et al. Optimized coagulation pathway of Al₁₃: effect of in situ aggregation of Al₁₃[J]. Chemosphere, 2019, 230: 76-83.
[19]	韩瑞, 吕宪俊, 李琳, 等. 非离子絮凝剂对微细粒尾矿絮凝沉降的影响[J]. 中国矿业, 2016, 25(5): 97-101. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKA201605021.htm HAN Rui, LV Xianjun, LI Lin, et al. The impact of non-ionic flocculant on the settling performance of micro-fine tailings[J]. China Mining Magazine, 2016, 25(5): 97-101. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKA201605021.htm
[20]	文宗. 残留消毒剂对多孔介质中病原体的影响探究[D]. 长春: 吉林大学, 2022. WEN Zong. Study on the effect of residual disinfectant onpathogens in porous media[D]. Changchun: Jilin University, 2022.
[21]	羊丽萍. 预氧化强化混凝处理低温低浊高有机物水库水的效能研究[D]. 哈尔滨: 哈尔滨工业大学, 2018. YANG Liping. Efficiency of preoxidation enhanced coagulation of low temperature and low turbidity reservoir water containing high organic matters[D]. Harbin: Harbin Institute of Technology, 2018.
[22]	叶淑娟, 何占航, 洪广峰, 等. 化学消毒剂对污水处理系统中游离细菌表面zeta电位的影响[J]. 中国消毒学杂志, 2006, 23(5): 415-418. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGXD200605014.htm YE Shujuan, HE Zhanhang, HONG Guangfeng, et al. Influence of chemical disinfectant on zeta potential of free bacterial surface in sewage treatment system[J]. Chinese Journal of Disinfection, 2006, 23(5): 415-418. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGXD200605014.htm

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Parameter optimization of coagulation and sedimentation for fine suspended solids removal from mine water

doi: 10.19606/j.cnki.jmst.2024.02.014

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