氨氮在含水层介质中的吸附影响因素分析
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摘要
以沈阳市黄家水源地不同层位的含水层介质为研究对象,研究了含水层介质埋深、温度、p H等对氨氮吸附特性的影响。结果表明,含水层介质埋深对氨氮的吸附影响实质是含水层介质粒度大小的影响,含水层介质粒度越大,对氨氮的吸附能力越小。含水层介质对氨氮的吸附过程是一个放热反应,温度越高,含水层介质对氨氮的吸附能力越小。p H对氨氮吸附能力的影响可能与H+对NH+4的竞争吸附和NH+4的水解等有关,使含水层介质对氨氮的吸附能力随p H的升高而增强。
The effect of aquifer media depth,temperature and p H on the adsorption characteristics of ammonia was studied by using aquifer media in different layers of water source in Shenyang city. The results show that the aquifer depth on ammonia adsorption effect is effect of aquifer particle size,aquifer particle size is larger,the adsorption capacity of ammonia is smaller; the adsorption process of aquifer media of ammonia is an exothermic reaction,the higher the temperature,the aquifer media on ammonia adsorption capacity the smaller; p H value may affect the ammonia adsorption capacity of NH+4 and H+competitive adsorption and hydrolysis of NH+4 and so on,the adsorption capacity of aquifer media of ammonia increased with p H value.
The effect of aquifer media depth,temperature and p H on the adsorption characteristics of ammonia was studied by using aquifer media in different layers of water source in Shenyang city. The results show that the aquifer depth on ammonia adsorption effect is effect of aquifer particle size,aquifer particle size is larger,the adsorption capacity of ammonia is smaller; the adsorption process of aquifer media of ammonia is an exothermic reaction,the higher the temperature,the aquifer media on ammonia adsorption capacity the smaller; p H value may affect the ammonia adsorption capacity of NH+4 and H+competitive adsorption and hydrolysis of NH+4 and so on,the adsorption capacity of aquifer media of ammonia increased with p H value.
引文
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2 梁秀娟,肖长来,盛洪勋,等.吉林市地下水中“三氮”迁移转化规律.吉林大学学报(地球科学版),2007;37(2):335—340Liang Xiujuan,Xiao Changlai,Sheng Hongxun,et al.Migration and transformation of ammonia-nitrite-nitrates in groundwater in the city of Jilin.Journal of Jilin University(Earth Science Edition),2007;37(2):335—340
3 罗泽娇.地下水三氮污染的研究进展.水文地质工程地质,2002;(4):65—69Luo Zejiao.Research progress of ammonia,nitrite and nitrate pollution in groundwater.Hydro Geological Engineering Geology,2002;(4):65—69
4 朱雅宁.氨氮在弱透水层中的渗透迁移规律研究.长春:吉林大学,2011Zhu Yaning.Study on permeation and migration law of ammonia nitrogen in the aquitard.Changchun:Jilin University,2011
5 赵丽,阿丽莉,刘梦杰,等.氨氮在松散孔隙型热储层中的吸附影响因素研究.安全与环境学报,2012;12(4):95—98Zhao Li,A Lili,Liu Mengjie,et al.Study on the influential factors of NH+4-N adsorption in the loose-pore geothermal reservoir matrix.Journal of Safety and Environmen,2012;12(4):95—98
6 王秉政,郑西来,胡荣庭,等.河床沉积物对氨氮的吸附及影响因素研究.勘察科学技术,2015;(5):21—24Wang Bingzheng,Zheng Xilai,Hu Rongting,et al.Studying on ammonia adsorption by riverbed sediments and its influence factors.Site Investigation Science and Technology,2015;(5):21—24
7 Li H T,Jiao Y C,Xu M C,et al.Thermodynamics aspect of tannin sorption on polymeric adsorbents.Polymer,2004;45(1):181—188
8 Wilcke W,Zech W,Kobza J.PAH-pools in soils along a PAH-deposition gradient.Environ Pollut,1996;92(3):307—313
9 Huang J G,Xu M C,Shi Z Q,et al.Synthesis and adsorption property of two polymeric adsorbents with pendent ether bonds.Chinese Chemical Letters,2003;14(9):914—916
10 李慧.氨氮在黄土包气带中吸附解吸特征和影响因素探讨.西安:长安大学,2014Li Hui.The characteristic and influence factors of ammonia-nitrogen adsorption desorption in the loess.Xi'an:Chang'an University,2014
11 潘俊,孟利,董健,等.滞洪型平原水库库底沉积物对氮素的吸附规律.环境工程学报,2015;9(8):3588—3589Pan Jun,Meng Li,Dong Jian,et al.Law of nitrogen adsorption by sediments underneath detention plain reservoir.Chinese Journal of Environmental Engineering,2015;9(8):3588—3589
12 Huang J G,Xu M C,Shi Z Q,et al.Synthesis and adsorption property of two polymeric adsorbents with pendent ether bonds.Chinese Chemical Letters,2003;14(9):914—916
13 田华.氨氮在滦河三角洲典型包气带介质上的吸附性能研究.环境工程学报,2011;5(3):507—510Ammonia-nitrogen adsorption characteristics on to vadose zone soils in Luanhe Delta.Chinese Journal of Environmental Engineering,2011;5(3):507—510
14 Moradi A,Abbaspour K C,Afyuni M.Modelling field-scale cadmium transport below the root zone of sewage sludge amended soil in an arid region in central Iran.J Contam Hydrol,2005;79(3—4):187 —206
15 Wang F L,Alva A K.Ammonium adsorption and desorption in sandy soils.Soil Science Society of America Journal,2000;64(5):1669—1674