Research on flocculation effect of fly ash composite on high turbidity and high salinity mine water
-
摘要: 煤矿分布式地下水库在神东地区应用取得显著成果,宁东地区已开始论证其可行性,但宁东地区矿井水多为高浊度高矿化度矿井水,需要对水库入水进行预处理。本文采用以粉煤灰为原料,通过与聚丙烯酰胺(PAM)、聚合氯化铝(PAC)、壳聚糖混合得到处理高浊度高矿化度矿井水的絮凝剂,试验对比了粉煤灰基复合絮凝剂和未加粉煤灰絮凝剂的絮凝效果,并探究了粉煤灰基絮凝剂的影响因素,确定了最佳投加量和试验条件。实验结果表明:① 5个处理组中对矿井水的处理效果依次是:PAM+PAC+壳聚糖+粉煤灰>PAM+PAC+壳聚糖>PAM+PAC>PAM>PAC;② 粉煤灰基复合絮凝剂的最佳絮凝条件为温度25℃、pH值7、搅拌强度220 r/min、搅拌时间20 min;③ 在最佳条件下,复合絮凝剂对矿化度、悬浮物、钙离子、总硬度和硫酸根的去除率分别为1216%、9804%、8057%、7786%和9544%;④ 粉煤灰基复合絮凝剂作为地下水库处理高浊度高矿化度矿井水预处理絮凝剂是可行的。本研究为地下水库进水的絮凝等预处理提供理论依据和技术支撑。Abstract: Significant results have been achieved in the application of distributed underground water reservoirs inShendong areaNingdong area has begun to demonstrate its feasibilityHowever,the mine water in Ningdong area is mostly of high turbidity and high salinity,so the pretreatment of the reservoir water is requiredThe experiment compares the flocculation effect of fly ashbased composite flocculant and unfilled coal ash flocculant,and explores the influence factors of fly ashbased flocculant,and determines the optimal dosage and test conditionsIn view of the characteristics of high turbidity and high salinity mine water,this experiment,using fly ash as raw material,to obtain high turbidity and high ore by mixing it with polyacrylamide(PAM),polyaluminum chloride(PAC) and chitosan,gets flocculants for treating high turbidity and high salinity mine waterThe experiment compares the flocculation effect of fly ashbased composite flocculant and unfilled coal ash flocculant,and explores the influencing factors of fly ashbased flocculant,and determines the optimal dosage and test conditionsThe experimental results show that:1The treatment effect of mine water in the five treatment groups is:PAM+PAC+chitosan+fly ash >PAM+PAC+chitosan > PAM+PAC>PAM>PAC;2The optimum condition of fly ash composite flocculant in temperature is 25° C,pH 7,stirring strength 220 r / min,stirring time 20 min;3Under the optimal conditions,the removal rates of salinity,suspended solids,calcium ions,total hardness and sulfate by composite flocculants are 1216%,9804%,8057%,7786% and 9544%;4It is feasible to use fly ashbased composite flocculant as pretreatment flocculant for the treatment of high salinity high suspended solid water in the groundwater reservoirThis article provides experimental theoretical basis and technical support for the pretreatment of flocculation in the groundwater reservoir.
-
Key words:
- mine water /
- flocculation /
- comprehensive utilization of fly ash /
- high turbidity /
- high salinity
-
[1] 张文艺,翟建平,李琴粉煤灰吸附法处理污水机理[J]. 粉煤灰综合利用,2006,2:54-56 [2] Zhang Wenyi,Zhai Jianping,Li QingMechanism of treating wastewater using fly ash absorption [J]. Fly Ash Comprehensive Utilization,2006,2:54-56 [3] Chen J,Min F,Wang HResearch status and progress on hydrophobic aggregation of the fine particles mineral:Areview[J]. Acta Mineralogica Sinica,2014,34(2) :181-188 [4] 徐德永,徐岩,康华粉煤灰基无机絮凝剂絮凝效果影响因素分析[J]. 选煤技术,2015,(1):5-8 [5] Xu Deyong,Xu Yan,Kang HuaAnalysis of influence factors of fly ash basis inorganic flocculant on flocculation effect [J]. Goal Preparation Technology,2015(1):5-8 [6] 杨建利,杜美利,白彬,等粉煤灰制备聚硅酸铝铁絮凝剂及对煤泥水的处理[J]. 煤炭科学技术,2013,41(7) :123-125 [7] Yang Jianli,Du Meili,Bai Bin,et al. Poly ferric silicate flocculant prepared with fly ash and treatment of slurry water[J]. Coal Science and Technology,2013,41(7) :123-125 [8] 董子龙,杨巧文,赵建兵,等聚合硫酸铁应用于选择性聚团法制备超纯煤[J]. 矿业科学学报,2019,4(5):455-460 [9] Dong Zilong,Yang Qiaowen,Zhao Jianbing,et al. The application of polymeric ferric sulfate in the selective agglomeration of ultra pure coal [J]. Journal of mining science and technology,2019,4(5):455-460 [10] 孙娜,李贤,赵杰峰,等聚硅铁镁絮凝剂处理渗滤液生化出水的参数优化、絮凝效果与絮凝机制[J]. 现代化工,2018,38(5):76-80 [11] Sun Na,Li Xian,Zhao Jiefeng,et al. Parameter optimization,flocculation performance as well as flocculation mechanism of treating landfill leachate by PSFM[J]. Modern Chemical Industry,2018,38(5):76-80 [12] 黄卫红,葛建华,王金明,等PAC-chitosan复合絮凝剂中铝形态分布及絮凝性研究[J]. 环境工程学报,2008,2(12):1636-1638 [13] Huang Weihong,Ge Jianhua,Wang Jinming,et al. Study on flocculation and distribution aluminum form of composite flocculant PAC-chitosan [J]. Chinese Journal of Environmental Engineering,2008,2(12):1636-1638 [14] 李暮,钱飞跃,李欣珏,等铁盐和铝盐混凝对印染废水生化出水中溶解性有机污染物的去除特性[J]. 环境工程学报,2012,6(11):3833-3838 [15] Li Mu,Qian Feiyue,Li Xinjue,et al. Characteristic of different organic fractions removal from biotreated effluents of textile and dyeing wastewater by ferric and aluminum coagulation [J]. Chinese Journal of Environmental Engineering,2012,6(11):3833-3838 [16] 姜晓琳,解强利用粉煤灰中溶出的硅、铝定向合成沸石[J]. 矿业科学学报,2017,2(4):395-401 [17] Jiang Xiaolin,Jie QiangDirectional synthesis of zeolite from silicon and aluminum dissolved in fly ash [J]. Journal of Mining Science and Technology,2017,2(4):395-401 [18] 范晓露,张东晨,闫佳煤炭微生物絮凝剂研究现状及展望[J]. 洁净煤技术,2016,22(2):18-22 [19] Fan Xiaolu,Zhang Dongchen,Yan JiaResearch progress and prospect of coal microbial flocculant [J]. Clean Coal Technology,2016,22(2):18-22 [20] 卢伟阴离子聚丙烯酰胺絮凝剂的制备及其对水中特征有机物的处理研究[D]. 重庆:重庆大学,2013:15-20 [21] 万鹰昕,徐婧,杨雪静,等絮凝剂产生菌Geotrichumcandidum的絮凝特征研究[J]. 地球与环境,2013,41(2):111-116 [22] Wan Yingxin,Xu Jing,Yang Xuejing,et al. Characterization of a bioflocculant produced by geotrichum candidum [J]. Earth and Environment,2013,41(2): 111-116 [23] 胡承志,刘会娟,曲久辉电化学水处理技术研究进展[J]. 环境工程学报,2018,12(3):676-696 [24] Hu Chengzhi,Liu Huijuan,Qu JiuhuiResearch progress of electrochemical technologies for water treatment[J]. Chinese Journal of Environmental Engineering,2018,12(3):676-696 [25] 袁玉婷,张洪刚,潘纲粉煤灰提取液的絮凝效应[J]. 环境工程学报,2016,10(10):5901-5906 [26] Yuan Yuting,Zhang Honggang,Pan GangFlocculation effects of coal fly ash leachate[J]Chinese Journal of Environmental Engineering,2016,10(10):5901-5906 [27] Li Yumei,Chen Lirong,Du MingzhanPreparation of coagulant from fly ash and its application in Yellow River water treatmentChinese Journal of Environmental Engineering,2013,7(4):1346-1350 [28] Yan Long,Wang Yufei,Ma Hongzhu,et al. Feasibility of fly ashbased composite coagulant for coal washing wastewater treatment[J]. Journal of Hazardous Materials,2012,203:221-228 [29] 牛风明矿井水中硫酸根、总硬度去除试验研究[D]. 山西:太原理工大学,2010:54 [30] Yao Z T,Xia M S,Sapkerp K,et al. A review ofthe alumina recovery from coal fly ash,with a focus in China[J]Fuel,2014,120:74-85 [31] 朱启红,李忠彬粉煤灰絮凝剂处理实验室废水实验研究[J]. 矿业研究与开发,2008,28(3):73-74 [32] Zhu Qihong,Li ZhongbinExperimental Study on the Treatment of Laboratory Wastewater with Fly Ash Flocculants [J]. Mining Research and Developmen,2008,28(3):73-74 [33] 王昶,胡文红,张颖,等蒙脱石矿物材料絮凝剂的制备、絮凝效果及机理研究[J]. 农业环境科学学报,2018,37(4):780-787 [34] Wang Chang,Hu Wenhong,Zhang Ying,et al. Study on preparation,flocculation effect,and mechanism of montmorillonite mineral material flocculant[J]. Journal of AgroEnvironment Science,2018,37(4):780-787
点击查看大图
计量
- 文章访问数: 411
- HTML全文浏览量: 100
- PDF下载量: 62
- 被引次数: 0