混凝-吸附联用预处理页岩气压裂返排液
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摘要
为降低液相中有机污染负荷,采用烧杯实验和气相色谱-质谱联用技术研究和分析了混凝-吸附法联用预处理页岩气压裂返排液的可行性。结果表明:精制硅藻土(硅藻土J)投加有利于污染物的去除,联用顺序和吸附反应时间可以影响处理效果;先投加硅藻土J 8 mg·L~(-1),反应30 min后再投加PAC 2 000 mg·L~(-1),COD和浊度去除率分别达到57%和87%;混凝-吸附联用能去除水中22种有机污染物,大部分烷烃类、醇类、邻苯二甲酸二丁酯和卤代烃得到很好的去除。PAC和硅藻土J联用比传统混凝/吸附可以更高效地降低溶液有机负荷物,可以作为一种页岩气压裂返排液预处理的方法。
In this study, to reduce the organic pollution load in the liquid phase, the feasibility of the coagulation-adsorption for hydraulic fracturing flow-back fluid of shale gas pre-treatment was analyzed and discussed by Jar tests and gas chromatography-mass spectrometry. The results showed that the addition of refined diatomite(diatomite J) was beneficial to pollutants removal, and the addition sequence and adsorption reaction time had effects on the treatment results. When first dosing diatomite J at 8 mg·L~(-1) and 30 minutes reaction, then dosing PAC at 2 000 mg·L~(-1), the removal efficiencies of COD and turbidity were 57% and 87%,respectively. Coagulation-adsorption integrated process could remove 22 organic pollutants in fluid, and most of the alkanes, alcohols, dibutyl phthalate and halogenated hydrocarbons. This indicated that joint of PAC and diatomite J was more efficient to reduce the organic pollutants in fluid than traditional coagulation/adsorption method, and it can be used as an effective method for treating hydraulic fracturing flow-back fluid of shale gas.
In this study, to reduce the organic pollution load in the liquid phase, the feasibility of the coagulation-adsorption for hydraulic fracturing flow-back fluid of shale gas pre-treatment was analyzed and discussed by Jar tests and gas chromatography-mass spectrometry. The results showed that the addition of refined diatomite(diatomite J) was beneficial to pollutants removal, and the addition sequence and adsorption reaction time had effects on the treatment results. When first dosing diatomite J at 8 mg·L~(-1) and 30 minutes reaction, then dosing PAC at 2 000 mg·L~(-1), the removal efficiencies of COD and turbidity were 57% and 87%,respectively. Coagulation-adsorption integrated process could remove 22 organic pollutants in fluid, and most of the alkanes, alcohols, dibutyl phthalate and halogenated hydrocarbons. This indicated that joint of PAC and diatomite J was more efficient to reduce the organic pollutants in fluid than traditional coagulation/adsorption method, and it can be used as an effective method for treating hydraulic fracturing flow-back fluid of shale gas.
引文
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[15]陈清莲,罗跃,彭楚翱.一种用于页岩气压裂返排液絮凝处理的PADD絮凝剂制备及应用[J].石油天然气学报,2014,36(3):139-141.
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[19]孙钰林,丁然,高迎新,等.工业园区废水深度处理的活性炭吸附-混凝技术中试研究[J].给水排水,2018,54(1):85-90.
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[21]樊炜.压裂返排液处理技术研究[J].化工技术与开发,2016,45(3):55-56.
[22]裴旋.耦合离子交换功能基团的絮凝剂的混凝性能和机理研究[D].泰安:山东农业大学,2014.
[23]SHENG G,WANG S,HU J,et al.Adsorption of Pb(II)on diatomite as affected via aqueous solution chemistry and temperature[J].Colloids and Surfaces A:Physicochemical&Engineering Aspects,2009,339(1):159-166.
[24]王煜杰.预氧化复合混凝-吸附预处理珠江水中的有机污染物的研究[D].广州:华南理工大学,2017.
[25]别楚君,姚迎迎,董秉直.基于高效液相凝胶色谱与三维荧光光谱研究饮用水中溶解性有机物去除规律[J].给水排水,2017,53(2):27-33.
[26]毕传健.强化混凝技术在集中式印染废水处理厂的应用研究[D].上海:东华大学,2017.
[27]严涵.石墨烯类材料对水体中多种污染物的吸附去除研究[D].南京:南京大学,2015.
[2]ESTRADA J M,BHAMIDIMARRI R.A review of the issues and treatment options for wastewater from shale gas extraction by hydraulic fracturing[J].Fuel,2016,182:292-303.
[3]WARNER N R,JACKSON R B,DARRAH T H,et al.Geochemical evidence for possible natural migration of Marcellus Formation brine to shallow aquifers in Pennsylvania[J].Proceedings of the National Academy of Sciences,2012,109(30):11961-11966.
[4]冯栩,鲍晋,苟杰,等.页岩气压裂返排液的序批式生物膜处理研究[J].工业水处理,2018,38(6):50-53.
[5]KARGBO D M,WILHELM R G,CAMPBELL D J.Natural gas plays in the Marcellus Shale:Challenges and potential opportunities[J].Environmental Science&Technology,2010,44(15):5679-5684.
[6]陈文娟,张健,朱江,等.油田压裂返排液组合深度处理工艺研究进展[J].工业水处理,2016,36(5):10-14.
[7]GHANBARI E,DEHGHANPOUR H.The fate of fracturing water:A field and simulation study[J].Fuel,2016,163:282-294.
[8]GREGORY K B,VIDIC R D,DZOMBAK D A.Water management challenges associated with the production of shale gas by hydraulic fracturing[J].Elements,2011,7(3):181-186.
[9]LUTZ B D,LEWIS A N,DOYLE M W.Generation,transport,and disposal of wastewater associated with Marcellus Shale gas development[J].Water Resources Research,2013,49(2):647-656.
[10]ELLSWORTH W L.Injection-induced earthquakes[J].Science,2013,341(6142):1225942.
[11]RAHM B G,BATES J T,BERTOIA L R,et al.Wastewater management and Marcellus Shale gas development:Trends,drivers,and planning implications[J].Journal of Environmental Management,2013,120:105-113.
[12]NICOT J P,SCANLON B R,REEDY R C,et al.Source and fate of hydraulic fracturing water in the Barnett Shale:Ahistorical perspective[J].Environmental Science&Technology,2014,48(4):2464-2471.
[13]杨德敏,夏宏,程方平.页岩气压裂返排废水的混凝处理效能研究[J].工业水处理,2016,36(9):32-34.
[14]许剑,李文权.页岩气压裂返排液处理工艺试验研究[J].石油机械,2013,41(11):110-114.
[15]陈清莲,罗跃,彭楚翱.一种用于页岩气压裂返排液絮凝处理的PADD絮凝剂制备及应用[J].石油天然气学报,2014,36(3):139-141.
[16]杜文婷.炼厂废水蒸发回用处理工艺的水质控制技术研究[D].成都:西南石油大学,2014.
[17]BASHIR M J K,XIAN T M,SHEHZAD A,et al.Sequential treatment for landfill leachate by applying coagulation-adsorption process[J].Geosystem Engineering,2016,20(1):9-20.
[18]ROSENBLUM J S,SITTERLEY K A,THURMAN E M,et al.Hydraulic fracturing wastewater treatment by coagulationadsorption for removal of organic compounds and turbidity[J].Journal of Environmental Chemical Engineering,2016,4(2):1978-1984.
[19]孙钰林,丁然,高迎新,等.工业园区废水深度处理的活性炭吸附-混凝技术中试研究[J].给水排水,2018,54(1):85-90.
[20]唐艳.混凝吸附法处理煤矿废水的研究[J].四川建材,2016,42(5):36-37.
[21]樊炜.压裂返排液处理技术研究[J].化工技术与开发,2016,45(3):55-56.
[22]裴旋.耦合离子交换功能基团的絮凝剂的混凝性能和机理研究[D].泰安:山东农业大学,2014.
[23]SHENG G,WANG S,HU J,et al.Adsorption of Pb(II)on diatomite as affected via aqueous solution chemistry and temperature[J].Colloids and Surfaces A:Physicochemical&Engineering Aspects,2009,339(1):159-166.
[24]王煜杰.预氧化复合混凝-吸附预处理珠江水中的有机污染物的研究[D].广州:华南理工大学,2017.
[25]别楚君,姚迎迎,董秉直.基于高效液相凝胶色谱与三维荧光光谱研究饮用水中溶解性有机物去除规律[J].给水排水,2017,53(2):27-33.
[26]毕传健.强化混凝技术在集中式印染废水处理厂的应用研究[D].上海:东华大学,2017.
[27]严涵.石墨烯类材料对水体中多种污染物的吸附去除研究[D].南京:南京大学,2015.