黄河内蒙古段表层沉积物对氨氮的吸附特征
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摘要
在实验室模拟环境中研究了内蒙古段黄河表层沉积物对氨氮的吸附特征,并探讨吸附反应的可逆性。研究结果表明,沉积物对氨氮的吸附反应符合Langumuir等温吸附模型,得出春季最大吸附量为416.67~909.10 mg/kg,秋季为714.29~2 000.00 mg/kg,与沉积物TN、TP、CEC及有机质呈显著正相关关系;沉积物氨氮的吸附-解吸平衡浓度平均为1.61 mg/L;沉积物对氨氮的吸附行为属于不可逆反应。
In this paper,the characteristics of ammonia adsorption on surface sediments form Inner Mongolia reach of the Yellow River was studied in laboratory simulated conditions. Adsorption isotherm of ammonia in surface sediments from the Yellow River in Inner Mongolia could be described by Langmuir isotherm model,the maximum amount of adsorption was 416. 67 ~909. 10 mg / kg in spring,714. 29 ~ 2 000. 00 mg / kg in autumn. The capacity of the ammonia adsorption in sediments was mainly affected by TN、TP、CEC and the content of organic matter of sediments. The adsorption-desorption equilibrium concentration averaged at 1. 61 mg / L. Ammonia adsorption behavior of sediments belonged to an irreversible reaction.
In this paper,the characteristics of ammonia adsorption on surface sediments form Inner Mongolia reach of the Yellow River was studied in laboratory simulated conditions. Adsorption isotherm of ammonia in surface sediments from the Yellow River in Inner Mongolia could be described by Langmuir isotherm model,the maximum amount of adsorption was 416. 67 ~909. 10 mg / kg in spring,714. 29 ~ 2 000. 00 mg / kg in autumn. The capacity of the ammonia adsorption in sediments was mainly affected by TN、TP、CEC and the content of organic matter of sediments. The adsorption-desorption equilibrium concentration averaged at 1. 61 mg / L. Ammonia adsorption behavior of sediments belonged to an irreversible reaction.
引文
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[12]陈静生,王飞越,陈江麟.论小于63μm粒级作为水体颗粒物重金属研究介质的理性及有关粒级转换模型研究[J].环境科学学报,1994,14(4):419-425.
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[14]GB/T 12763.4—2007《海洋调查规范》第4部分:海水化学要素调查[S].
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[17]刘子亭,于俊清,张保华,等.烧失量分析在湖泊沉积与环境变化研究中的应用[J].盐湖科学,2006,14(2):67-71.
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[19]姜桂华.铵态氮在土壤中吸附性能探讨[J].长安大学学报,2004,21(2):32-38.
[20]Suna Balci.Nature of ammonium ion adsorption by sepiolite:Analysis of equilibrium data with several isotherms[J].Water Research,2004,38:1129-1138.
[21]庞燕,金相灿,王圣瑞,等.长江中下游浅水湖泊沉积物对磷的吸附特征-吸附等温线和吸附/解吸平衡质量浓度[J].环境科学研究,2004,17(增刊):18-23.
[22]高效江,张念礼,陈振楼,等.上海滨岸潮滩水沉积物中无机氮的季节性变化[J].地理学报,2002,5(4):407-412.
[23]潘纲,李贤良,秦延文,等.EXAFS研究Zn在d-Mn O2上的吸附-解吸机理[J].环境科学,2004,24:54-59.
[24]Li F,Rosen M J.The adsorption of Gemini and conventional surfactants onto some soil solids and the removal of 2-naphthol by the soil surface[J].J Colloid Interface Sci,2001,234:418-424.
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[26]Froelich P N.Kinetic control of dissolved phosphate in natural rivers and estuaries:A primier on the phosphate buffer mechanism[J].Limnol Oceanogr,1988,33:649-668.
[27]王晓丽,包华影,郭博书.黄河沉积物对磷的吸附行为[J].生态环境学报,2009,18(6):2076-2080.
[28]王晓丽,潘纲,包华影,等.黄河中下游沉积物对磷酸盐的吸附特征[J].环境科学,2008,29(8):2131-2142.
[2]丁磊.黄河内蒙古段河道变迁和干流水量损失研究[D].呼和浩特:内蒙古农业大学,2012.
[3]杨龙元,蔡启铭,秦伯强,等.太湖梅梁湾沉积物-水界面氮迁移特征初步研究[J].湖泊科学,1998,10(4):41-47.
[4]吴丰昌.云贵高原湖泊沉积物和水体氮磷和硫的生物地球化学作用和生态环境效应[J].地质地球化学,1996(6):88-89.
[5]焦立新.浅水湖泊表层沉积物氮形态特征及在生物地球化学循环中的功能[D].呼和浩特:内蒙古农业大学,2008:27-31.
[6]徐德星.三峡入库河流大宁河回水区沉积物和消落带土壤氮磷形态及其分布特征研究[D].北京:北京化工大学,2009.
[7]易文利,王圣瑞,杨苏文,等.长江中下游浅水湖泊沉积物腐殖质组分赋存特征[J].湖泊科学,2011,23(1):21-28.
[8]王圣瑞,焦立新,金相灿,等.长江中下游浅水湖泊沉积物总氮、可交换态氮与固定态铵的赋存特征[J].环境科学学报,2008,28(1):37-43.
[9]张雷,秦延文.三峡入库河流大宁河回水区浸没土壤及消落带土壤氮形态及分布特征[J].环境科学,2009,30(10):2884-2890.
[10]申宇,东昌湖补水过程中氮的变化及沉积物对氨氮的吸附-解吸特征研究[D].北京:中国海洋大学,2013.
[11]杨洪美.南四湖表层沉积物中氮形态及吸附释放研究[D].济南:山东大学,2012:19-21.
[12]陈静生,王飞越,陈江麟.论小于63μm粒级作为水体颗粒物重金属研究介质的理性及有关粒级转换模型研究[J].环境科学学报,1994,14(4):419-425.
[13]鲍士旦.土壤农化分析[M].2版.北京:农业出版社,1994.
[14]GB/T 12763.4—2007《海洋调查规范》第4部分:海水化学要素调查[S].
[15]中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科学技术出版社,1978:282-283.
[16]Keppler F,Eiden R.Halocarbons produced by natural oxidation processes during degradation of organic matter[J].Nature,2000,403:298-301.
[17]刘子亭,于俊清,张保华,等.烧失量分析在湖泊沉积与环境变化研究中的应用[J].盐湖科学,2006,14(2):67-71.
[18]钱宝,刘凌,肖潇.土壤有机质测定方法对比分析[J].河海大学学报.自然科学版,2011,39(1):34-37.
[19]姜桂华.铵态氮在土壤中吸附性能探讨[J].长安大学学报,2004,21(2):32-38.
[20]Suna Balci.Nature of ammonium ion adsorption by sepiolite:Analysis of equilibrium data with several isotherms[J].Water Research,2004,38:1129-1138.
[21]庞燕,金相灿,王圣瑞,等.长江中下游浅水湖泊沉积物对磷的吸附特征-吸附等温线和吸附/解吸平衡质量浓度[J].环境科学研究,2004,17(增刊):18-23.
[22]高效江,张念礼,陈振楼,等.上海滨岸潮滩水沉积物中无机氮的季节性变化[J].地理学报,2002,5(4):407-412.
[23]潘纲,李贤良,秦延文,等.EXAFS研究Zn在d-Mn O2上的吸附-解吸机理[J].环境科学,2004,24:54-59.
[24]Li F,Rosen M J.The adsorption of Gemini and conventional surfactants onto some soil solids and the removal of 2-naphthol by the soil surface[J].J Colloid Interface Sci,2001,234:418-424.
[25]Huang W,Young T M,Schlautman M A,et al.A distributed reactivity model for sorption by soils and sediments.9:General isotherm nonlinearity and applicability of the dual reactive domain model[J].Environ Sci,1996,161(12):812-831.
[26]Froelich P N.Kinetic control of dissolved phosphate in natural rivers and estuaries:A primier on the phosphate buffer mechanism[J].Limnol Oceanogr,1988,33:649-668.
[27]王晓丽,包华影,郭博书.黄河沉积物对磷的吸附行为[J].生态环境学报,2009,18(6):2076-2080.
[28]王晓丽,潘纲,包华影,等.黄河中下游沉积物对磷酸盐的吸附特征[J].环境科学,2008,29(8):2131-2142.