Preparation and removal effect of ballasted material for synergistic turbidity and fluoride removal from coal mine water

doi:10.19965/j.cnki.iwt.2022-0956

Abstract

Abstract:

The overall utilization rate of mine water in China is low. In recent years，the mine water discharged from coal mines presents new characteristics such as large changes in water quality and quantity，and multi-pollutant compound pollution. In this study，a new type of ballasted material was prepared by using stripped limestone from coal mine open-pit mining as raw material to treat mine water. Through the gradient setting of reaction conditions，the removal effect of turbidity and fluoride ions was studied，and the change of material characteristics before and after treatment was analyzed. The research results showed that the turbidity and fluoride ion removal efficiency of ballasted flocculation were better than traditional coagulation technology. Under the optimal conditions that the dosage of PAC was 60 mg/L，the dosage of PAM was 1.2 mg/L，and the dosage of new ballasted material was 2.0 g/L，the turbidity removal rate could reach 92.7%，and the fluoride ion removal rate could reach 96.35%. The continuous running results showed that the turbidity of the outlet was below 0.8 NTU，and the fluoride ion concentration of the outlet could be controlled within 0.7-1.0 mg/L. The results of SEM，XRD and FTIR showed that the main component of the new ballasted material was hydroxyapatite，and the related mechanisms mainly include surface flocculation and adsorption. After the reaction，a large amount of suspended solids was adsorbed on the surface of the new ballasted material，and the main product produced by the ion exchange reaction was Ca₅（PO₄）₃F.

Key words: suspended solids, ballasted flocculation, fluoride ion, hydroxyapatite, coal mine water

摘要：

我国煤矿矿井水整体利用率较低，近年来煤矿外排矿井水呈现水质水量变化大、多污染物复合污染等新特征。采用煤矿露天开采剥离的石灰岩为原料，制备一种新型加载材料处理矿井水，通过反应条件梯度设置，研究对浊度和氟离子的去除效果，分析处理前后材料的特征变化。研究结果表明，加载絮凝的浊度、氟离子去除效果均优于传统混凝技术，在聚合氯化铝（PAC）投加量为60 mg/L，聚丙烯酰胺（PAM）投加量为1.2 mg/L，新型加载材料投加量为2.0 g/L的最优条件下，浊度去除率可达92.7%，氟离子去除率可达96.35%。连续运行结果表明，出水浊度在0.8 NTU以下，出水氟离子质量浓度可控制在0.7~1.0 mg/L。扫描电镜、X射线衍射和傅里叶红外光谱的表征结果表明，制备的新型加载材料主要成分为羟基磷灰石，涉及机理主要包括表面絮凝和吸附。反应结束后，新型加载材料表面吸附大量悬浮物，通过离子交换反应生成的主要产物为Ca₅（PO₄）₃F。

关键词: 悬浮物, 加载絮凝, 氟离子, 羟基磷灰石, 矿井水

CLC Number:

X752
X703.1

Ming WEI, Xiaohui NIU, Yanping LIU, Tingchao YANG, Xiaohang ZHANG, Shipeng YANG. Preparation and removal effect of ballasted material for synergistic turbidity and fluoride removal from coal mine water[J]. Industrial Water Treatment, 2023, 43(9): 84-90.

卫明, 牛晓惠, 刘艳萍, 杨廷超, 张晓航, 杨世鹏. 新型除浊除氟加载材料的制备及其处理矿井水效果[J]. 工业水处理, 2023, 43(9): 84-90.

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URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2022-0956

https://www.iwt.cn/EN/Y2023/V43/I9/84

Figures/Tables 9

Table 1 The component contents of limestone sample

项目	CaO	SiO₂	MgO	Fe₂O₃	Al₂O₃	MnO	TiO₂	K₂O	Na₂O	SrO
质量分数/%	55.48	0.68	0.45	0.09	0.24	0.005	0.015	0.14	0.008	0.02

Fig. 1 The cooperative removal apparatus for suspended solids and fluoride in coal mine water

Fig.2 The SEM，XRD，FT-IR of new ballasted material

Fig. 3 The effect of coagulant dosage on removal of turbidity and fluoride pollutant

Fig. 4 The effect of flocculant dosage on removal of turbidity and fluorine pollutant

Fig. 5 The effect of the dosage of new ballasted material on removal of turbidity and fluorine pollutant

Fig. 6 The SEM of sediment

Fig.7 The XRD，FT-IR of new ballasted material before and after adsorption

Fig. 8 The dynamic experiment of combined removal of suspended solids and fluoride

References 20

1	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.
	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.
2	李福勤，李硕，何绪文，等. 煤矿矿井水处理工程存在的问题及对策［J］. 中国给水排水，2012，28（2）：18-20. doi:10.3969/j.issn.1000-4602.2012.02.005
	LI Fuqin， LI Shuo， HE Xuwen，et al. Problems and solutions for mine water treatment works［J］. China Water ＆ Wastewater，2012，28（2）：18-20. doi:10.3969/j.issn.1000-4602.2012.02.005
3	张晓航. 气浮-加载絮凝-零价铁过滤处理煤矿矿井水技术研究［D］. 北京：中国矿业大学（北京），2020.
4	王淑璇，张溪彧，杨建. 露天矿矿井水强化混凝与季节适应性研究［J］. 工业水处理，2022，42（9）：117-123.
	WANG Shuxuan， ZhANG Xiyu， YANG Jian. Enhanced coagulation and seasonal adaptability of open-pit mine water［J］. Industrial Water Treatment，2022，42（9）：117-123.
5	DESJARDINS C. Laboratory study of ballasted flocculation［J］. Water Research，2002，36（3）：744-754. doi:10.1016/s0043-1354(01)00256-1
6	CAILLEAUX C， PUJOL E， DIANOUS D，et al. Study of weighted flocculation in view of a new type of clarifier［J］. Journal of Water Supply：Research and Technology-AQUA，1992，41（1）：18-27.
7	DIANOUS F， DERNAUCOURT J C. Advantages of weighted flocculation in water treatment［J］. Water Supply，1991，9（4）：3-6.
8	刘芳池，戚凯，李向东. 粉煤灰加载絮凝处理煤矿矿井水的试验研究［J］. 能源环境保护，2022，36（1）：44-50. doi:10.3969/j.issn.1006-8759.2022.01.007
	LIU Fangchi， QI Kai， LI Xiangdong. Experimental study on optimization of fly ash loading flocculation treatment of coal mine water［J］. Energy Environmental Protection，2022，36（1）：44-50. doi:10.3969/j.issn.1006-8759.2022.01.007
9	张晓航，何绪文，高瑶，等. 磁絮凝磁选机磁系设计与矿井水处理工艺优化［J］. 水处理技术，2019，45（7）：85-88.
	ZHANG Xiaohang， HE Xuwen， GAO Yao，et al. Magnetic system design of magnetic separator of magnetic flocculation and optimization of mine water treatment process［J］. Technology of Water Treatment，2019，45（7）：85-88.
10	LAPOINTE M. Selection of media for the design of ballasted flocculation processes［J］. Water Research，2018，147：25-32. doi:10.1016/j.watres.2018.09.041
11	MURUJEW O. The impact of polymer selection and dose on the incorporation of ballasting agents onto wastewater aggregates［J］. Water Research，2020，170：115346. doi:10.1016/j.watres.2019.115346
12	刘成，胡伟，李俊林，等. 用于地下水除氟的羟基磷灰石制备及其除氟效能［J］. 中国环境科学，2014，34（1）：58-64.
	LIU Cheng， HU Wei， LI Junlin，et al. Preparation of the hydroxyapatite to remove fluorine from groundwater and its removal performance［J］. China Environmental Science，2014，34（1）：58-64.
13	杨威，纪登杰，许依能，等. 响应面法优化贻贝壳制备羟基磷灰石工艺［J］. 中国食品添加剂，2022，33（4）：95-102.
	YANG Wei， JI Dengjie， XU Yineng，et al. Optimization of the preparation of hydroxyapatite from mussel shells by response surface methodology［J］. China Food Additives，2022，33（4）：95-102.
14	姚艳，杨道武，任卓，等. 硫酸铝和聚氯化铝处理高浓度含氟废水的对比研究［J］. 给水排水，2011，47（1）：150-152. doi:10.3969/j.issn.1002-8471.2011.01.037
	YAO Yan， YANG Daowu， REN Zhuo，et al. Comparative study on treatment of high concentration fluorine containing wastewater with aluminum sulfate and polyaluminum chloride［J］. Water ＆ Wastewater Engineering，2011，47（1）：150-152. doi:10.3969/j.issn.1002-8471.2011.01.037
15	ZHANG Xiaohang， HE Xuwen， WEI Ming，et al. Magnetic flocculation treatment of coal mine water and a comparison of water quality prediction algorithms［J］. Mine Water and the Environment，2019，38（2）：391-401. doi:10.1007/s10230-019-00590-9
16	Jinfang LÜ， ZHENG Yongxing， TONG Xiong. Clean utilization of waste rocks as a novel adsorbent to treat the beneficiation wastewater containing arsenic and fluorine［J］. Journal of Cleaner Production，2021，293：126160. doi:10.1016/j.jclepro.2021.126160
17	陈啸，伍喜庆，岳涛，等. 矿山尾矿水的磁种絮凝处理及机理研究［J］. 环境污染与防治，2019，41（11）：1313-1318.
	CHEN Xiao， WU Xiqing， YUE Tao，et al. Study on the magnetic seed flocculation treatment of mine tailings water and its mechanism［J］. Environmental Pollution ＆ Control，2019，41（11）：1313-1318.
18	廖杭，吕莉，唐盛伟，等. 盐酸法制磷酸中氯化钙废水的除氟工艺［J］. 工业水处理，2021，41（11）：89-93. doi:10.19965/j.cnki.iwt.2021-0216
	LIAO Hang， Li LÜ， TANG Shengwei，et al. Defluorination process of calcium chloride wastewater from phosphoric acid production by hydrochloric acid method［J］. Industrial Water Treatment， 2021，41（11）：89-93. doi:10.19965/j.cnki.iwt.2021-0216
19	WANG Yuying， LIU Yuxue， LU Haohao，et al. Competitive adsorption of Pb（Ⅱ），Cu（Ⅱ），and Zn（Ⅱ） ions onto hydroxyapatite-biochar nanocomposite in aqueous solutions［J］. Journal of Solid State Chemistry，2018，261：53-61. doi:10.1016/j.jssc.2018.02.010
20	胡家朋，吴代赦，肖丽盈，等. 羟基磷灰石的制备及其对水中氟离子的吸附［J］. 环境工程学报，2015，9（4）：1823-1830. doi:10.12030/j.cjee.20150449
	HU Jiapeng， WU Daishe， XIAO Liying，et al. Fabrication of hydroxyapatite and its absorption property for fluorid ion［J］. Chinese Journal of Environmental Engineering，2015，9（4）：1823-1830. doi:10.12030/j.cjee.20150449

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