湖泊沉积物对磷的吸附特征及其吸附热力学参数

doi:10.11821/yj2006010003

地理研究 ›› 2006, Vol. 25 ›› Issue (1): 19-26.doi: 10.11821/yj2006010003

湖泊沉积物对磷的吸附特征及其吸附热力学参数

王圣瑞, 金相灿, 庞燕

中国环境科学研究院湖泊生态环境研究中心,北京100012

收稿日期:2005-04-19 修回日期:2005-08-13 出版日期:2006-02-15 发布日期:2006-02-15
通讯作者: 金相灿(1945-),男,浙江义乌人,研究员。主要从事湖泊富营养化研究。E-mail:Jinxiang@pub- lic.bt.a.net.cn
作者简介:王圣瑞(1972-),男,内蒙古土左人,博士,副研究员。主要从事湖泊富营养化研究。E-mail:shen- gruiwang@sohu.com
基金资助:
国家重点基础研究发展规划项目“湖泊富营养化过程与蓝藻水华暴发机理研究”(2002CB412304)

The adsorption characteristics and adsorption thermodynamics parameter of phosphate on lake sediments

WANG Sheng-rui, JIN Xiang-can, PANG Yan

Research Center of Lake Eco-environment,ChineseResearch Academy of Environment Science,Beijing 100012,China

Received:2005-04-19 Revised:2005-08-13 Online:2006-02-15 Published:2006-02-15

摘要/Abstract

摘要：

在模拟条件下研究了属于不同营养水平的3个沉积物吸附磷等温线、动力学和热力学参数,比较了不同沉积物吸附磷的差别。结论如下:（1）在本研究条件下,五里湖沉积物吸附磷的Qmax、K、NAP和EPC0均高于东太湖和贡湖沉积物,而m却较低。东太湖和贡湖沉积物与其上覆水间基本保持磷吸附-解吸动态平衡状态,五里湖沉积物有向上覆水释放磷的趋势;（2）沉积物吸附磷主要发生在0⁰.5h之内,此时间段吸附速率为贡湖沉积物与东太湖沉积物相差不大,均高于五里湖沉积物;（3）温度对五里湖沉积物吸附磷影响相对较小,而对贡湖和东太湖沉积物影响较大。

关键词: 磷, 吸附等温线, 热力学参数, 吸附动力学, 吸附-解吸平衡浓度, 沉积物

Abstract:

The adsorption isotherms,kinetics and thermodynamics parameters of phosphate on three sediments that are in different trophic levels respectively were studied in simulated condition,and the differences of phosphate adsorption on different sediments were also compared.The conclusions are as follows. （1） The Qmax,K,m,NAP and EPC₀ of phosphate adsorption on the sediments from the East Taihu and the Gonghu lakes were almost the same,and the Qmax,K,NAP and EPC₀ of the two sediments were lower than that from the Wuli Lake,but m was higher.That means the Qmax and K of the sediment from the heavily polluted Wuli Lake were higher than that from the slightly polluted East Taihu and Gonghu lakes.At the same time NAP and EPC₀ of the Wuli Lake were also higher,the risk of phosphorus release of the sediment from the lake was higher,and m was lower.So the polluted state of sediment has significant effect on its phosphate adsorption.For the sediments from the East Taihu and the Gonghu lakes,they maintained a phosphate adsorption-desorption equilibrium state between the sediments and the overlying water,and for the sediment from the Wuli Lake,it tended to release phosphate into the lake′s overlying water. （2） The phosphate adsorption rate of the lake sediment within 0.5 h was the highest,and was 10 times or 100 times higher than that sampled in other time intervals,so the majority of phosphate adsorption on sediment was completed within 0.5 h.The phosphate adsorption rate within 0.5 h of the sediments from the Gonghu Lake was almost the same as the sediment from the East Taihu Lake,and the rate of the two sediments was higher than that from the Wuli Lake.Phosphate adsorption on sediment mainly depends on its physical and chemical properties such as distribution of sediment grain size.In this study,the adsorption rate within 0.5 h had no strong positive correlation with its volume percentage of fine particles less than 63μm.This suggests that the phosphate adsorption on the sediments studied was not only affected by its volume percentage of the fine particles,but also by its other physical and chemical properties. （3） The adsorption isotherms of phosphate on the sediments from the Wuli,the Gonghu and the East Taihu lakes at 283 K,298 K and 308 K were studied.The results show that the adsorption process of phosphate on the sediments was the endothermic reaction as the phosphate adsorption rate increased along with the increase of temperature.ΔH⁰ of the sediments from the East Taihu,the Wuli and the Gonghu lakes were 7.84,15.49 and 8.59 kJ·mol^-1,and ΔG⁰ were 8.50,5.95 and 8.07 kJ·mol^-1,respectively.The effect of phosphate adsorption by temperature was lower for the sediment from the Wuli Lake,and higher for the sediments from the East Taihu and the Gonghu lakes in this study.

Key words: phosphate, adsorption isotherms, thermodynamics parameter, adsorption kinetics, adsorption-desorption equilibrium concentration, sediment

王圣瑞, 金相灿, 庞燕. 湖泊沉积物对磷的吸附特征及其吸附热力学参数[J]. 地理研究, 2006, 25(1): 19-26.

WANG Sheng-rui, JIN Xiang-can, PANG Yan. The adsorption characteristics and adsorption thermodynamics parameter of phosphate on lake sediments[J]. GEOGRAPHICAL RESEARCH, 2006, 25(1): 19-26.

参考文献

[1] 隋少峰,罗启芳.武汉东湖底泥释磷特点.环境科学,2001,22(1):102~105.

[2] 刘忠翰,贺彬,王宜明,等.滇池不同流域降雨径流对河流氮磷入湖总量的影响.地理研究,2004,23(5):593~604.

[3] 盖美,田成诗1大连市近岸海域水环境质量、影响因素及调控研究.地理研究,2003,22(5):644~653.

[4] 汤鸿霄.微界面水质过程的理论与模式应用.环境科学学报,2000,20(1):1~10.

[5] 吴丰昌,万国江,等.沉积物-水界面的生物地球化学作用.地球科学进展,#1996,..(2):.9.~.96.

[6] 范成新,秦伯强,等.梅粱湾和五里湖水)沉积物界面的物质交换.湖泊科学,1998,10(1):73~78.

[7] Lee-H yung Kim,Eu iso C hoi,et al. Sediment charact erist ics,ph os phorus t ypes and phosph orus rel ease rat es b e-t ween river an d lake s edim ent s. Chemosphere,2003,50:53~61.

[8] 焦念志,李德尚.悬浮沉积物对磷酸盐的吸附与释放及藻类对吸附磷的利用.青岛海洋大学学报,1989,19(2):27~35.

[9] Bengt Bos tr on,Jens M,et al. Exchange of phosphoru s across th e s ediment-wat er in terface. H ydrobiologis,1988,17:229~244.

[10] 王圣瑞,金相灿,等.不同营养水平沉积物对磷酸盐在不同pH下的等温吸附特征研究.环境科学研究,2005,18(1):53~57.

[11] 刘巧梅,刘敏,等.上海滨岸潮滩不同粒径沉积物中无机形态磷的分布特征.海洋环境科学,2002,21(3):29~33.

[12] L opez P,Llu ch X,et al. Adsorpt ion of phosph orus on sedimen ts of t he Balearic Is lands(Spain)relat ed t o t h eircomposit ion. Est uarine,Coast al and Shel f Sci ence,1996,42:185~196.

[13] 林荣根,吴景阳.黄河口沉积物对磷酸盐的吸附与释放.海洋学报,1994,16(4):82~90.

[14] 李九发,陈小华,万新宁,等.长江河口枯季河床沉积物与河床沙波现场观测研究.地理研究,2003,22(4):513~519.

[15] 蔡后建.微囊藻水化的漂移合降解对太湖水环境的影响.见:蔡启明主编.太湖环境生态研究(一).北京:气象出版社,1998. 149~157.

[16] 蔡启明,高锡芸,等.太湖水质的动态变化及影响因子的多元分析.湖泊科学,1995,7(2):97~106.

[17] Fan Chen xin,Ji Jian g,et al. Com perh ens ive eval uat ion and preliminary p redict ion for wat er qualit y and eut rophi-cat ion of Gong hu Bay. Transact ions of Ocean ol ogy and Lim nology,1997,3:18~24.

[18] C hen Qin. Self organizati on feat ure maps for anal ysis of aquat ic dat a:a case st udy of eut roph icat ion analysi s inT aihu Lak e. J. Hydraulics Eng.,2001,6:94~99.

[19] Jin Xiangcan,Wang Shengru i,et a l. T he ad sorpt ion of phosp hat e on different t rophic lake sediment s1 Colloid ands urfaces A:Ph ysicoch emical and E ngineering Aspect,2005,254:241~248.

[20] 中国科学院南京土壤研究所编.土壤理化分析.上海:上海科学技术出版社,1978. 121~134.

[21] R uban V,L?pez- Snch ez P,et al. H arm onized pr ot ocol and cert ifi ed reference mat erial for th e det erminat ion ofext ract abl e cont en t s of ph os phorus in fresh wat er sediment s)A s ynt hesis of recent wor ks. Fresenius J. Ana.lC hem.,2001,370:224~228.

[22] AWWA,APH A,et al. St an dard Meth ods for t he Examinat ion of wat er and was tewat er,.8t h(edn.). Was hing-t on,DC:American Publ ic Heal th As sociat ion,1998. 458.

[23] 金相灿,王圣瑞,等1湖泊沉积物对磷酸盐的负吸附研究1生态环境,2004,13(4):493~496.

[24] Stu mm W,Morgan J. Aquat ic Chem ist ry. New York:J. Wil ey an d Son s,1981. 102~123.

[25] 刘敏,侯立军,等.长江河口潮滩表层沉积物对磷酸盐的吸附特征.地理学报,2002,57(4):397~406.

[26] 高超,张桃林,等.不同利用方式下农田土壤对磷的吸持与解吸特征.环境科学,2001,22(4):67~72.

[27] 杨麟,孙健.五里湖)梅梁湖磷污染调查.环境监测管理与技术,2001,13(6):18~20.

[28] 韩伟明.底泥释磷及其对杭州西湖富营养化的影响.湖泊科学,1993,5(1):71~77.

[29] 唐孟成,贾之慎,等.西湖沉积物磷释放影响因子的研究.浙江农业大学学报,1997,23(3):289~292.

[30] Liikanen A1 Effect s of t emp eratu re and oxyg en avail abil it y on greenh ou se gas an d nut rient dynam ics in sedimen t ofa eut rophi c m id-boreal l ake1 Biogeochemist ry,2002,59:269~286.

[31] 朱利中,杨坤,等.对硝基苯酚在沉积物上的吸附特征)吸附等温线和吸附热力学.环境科学学报,2001,21(6):674~678.

湖泊沉积物对磷的吸附特征及其吸附热力学参数

The adsorption characteristics and adsorption thermodynamics parameter of phosphate on lake sediments

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