浮床植物系统对富营养化水体中氮、磷净化特征的初步研究

摘要/Abstract

摘要： 以浮床空心菜(Ipomoea aquatica)、水芹(Oenanthe javanica)和无植物系统为对象,研究了其在富营养化水体中对N、P的去除及其N₂O的排放情况.结果表明,浮床植物系统对水体中N、P具有良好的净化效果,植物组织所累积的N、P量分别占各自系统去除量的40.32%～63.87%,说明植物的同化吸收作用是N、P去除的主要途径.换水周期内浮床植物系统中硝化反应进行充分,而反硝化反应相对缓慢,导致系统具有较高的NH₄⁺-N去除率,而产生NO₃--N累积.植物的存在降低了系统中N₂O的排放通量.生长较好的空心菜系统在换水前后平均N₂O排放量最低,为17.14μgN·m^-2h^-1,空白高达8.08μgN·m^-2h^-1,水芹为37.38μg N·m^-2·h^-1.

关键词: 富营养化, 浮床植物系统, N、P, 硝化和反硝化, 净化, N₂O

Abstract: The study on the N and P removal and N₂O release of eutrophic water body under planted float Ipomoea aquatica and Oenanthe javanica showed that planted float had a good effect on the removal of N and P from eutrophic water body.The bioaccumulation of N and P by the plants accounted for 40.32%～63.87% of the N and P removal,respectively,suggesting that plant uptake was the main removal process.Within the treating period,there was a rapid and sufficient nitrification but a slow and insufficient denitrification in the planted float system,and thereby,planted float system had a high NH⁺₄-N removal rate and NO^-₃-N accumulation.The presence of planted float reduced the release flux of N₂O,which was 17.14 μg N·m^-2·h^-1 for Ipomoea aquatica,37.38 μg N·m²·h^-1 for Oenanthe javanica,and 85.08 μg N·m^-2·h^-1 for the control.

Key words: Eutrophication, Planted float system, N and P, Nitrification and denitrification, Removal, N₂O

中图分类号:

X171.4

周小平, 王建国, 薛利红, 徐晓峰, 杨林章. 浮床植物系统对富营养化水体中氮、磷净化特征的初步研究[J]. 应用生态学报, 2005, 16(11): 2199-2203.

ZHOU Xiaoping, WANG Jianguo, XUE Lihong, XU Xiaofeng, YANG Linzhang . N and P removal characters of eutrophic water body under planted float[J]. Chinese Journal of Applied Ecology, 2005, 16(11): 2199-2203.

参考文献

[1] Borin M, Vianello M, Morari F, et al. 2005. Effectiveness of buffer strips in removing pollutants in runoff from a cultivated field in North-East Italy. Agric Ecosyst Environ, 105:101 ～ 114
[2] Cheng S-P(程树培),Ding S-R(丁树荣),Hu Z-M(胡忠明).1991.The study of purification of water spinach planted on artificial substrata on filature wastewater.Environ Sci(环境科学),12(4):47～51(in Chinese)
[3] Dai Q-Y(戴全裕),Chen Z(陈钊).1993.Purification of beer wastewater by Lolium multiflorum.Chin J Appl Ecol(应用生态学报),4(3):334～337(in Chinese)
[4] Dai Q-Y(戴全裕),Jiang X-C(蒋兴昌),Wang Y-B(汪耀斌),et al.1995.Eco-engineering simulation on pollutant control in river courses of Taihu Lake.Chin J Appl Ecol(应用生态学报),6(2):201 ～ 205 (in Chinese)
[5] Diemo D, Manfred KS. 1998. Influence of nutrient solution pH on N₂O and N2 emissions froma soilless culture system. Plant Soil,203:279 ～ 287
[6] Drizo A, Frost CA, Smith KA, et al. 1997. Phosphorus and ammonium removal by constructed wetlands with horizontal subsurface flow, using shale as a substrate. Water Sci Technol, 35 (5):95～102
[7] James FR, Alex JH, Craig DM. 2000. Nitrate removal from a drinking water supply with large free-surface constructed wetlands prior to groundwater recharge. Ecol Eng, 14..33 ～ 47
[8] Jin X-C(金相灿),Liu S-K(刘树坤),Zhang Z-S(章宗涉),et al.1995.China Lake Eutrophication.Beijing:China Ocean Press.(in Chinese)
[9] Jing Y-S(靖元孝),Yang D-Q(杨丹菁).2004.Nitrogen removal and nitrogen-transformation bacteria in Cyperus alternifolius constructed wetland.Ecol Sci(生态科学),23(1):89～91(in Chinese)
[10] Kivaisi AK.2001.The potential for constructed wetlands for wastewatertreatment and reuse in deve-loping countries:A review.Ecol Eng,16:545～560
[11] Li F-B(李芳柏),Wu Q-T(吴启堂).1997.Domestic wastewater treatment with means of soilless cultivated plants.Chin J Appl Ecol (应用生态学报),8(1):88～92(in Chinese)
[12] Li W,Friedrich R.2002.In situ removal of dissolved phosphorusin irrigation drainage water by planted floats:Preliminary results from growth chamber trail. Agric Ecosyst Environ, 90:9～ 15
[13] Liu S-Y(刘淑嫒),Ren J-C(任久长),You W-H(由文辉).1999.A study on putification ofthe eutrophic water body with economical plants soillessly cultivated on artificial substratum.Acta Univ Pekinensis(SciNat)(北京大学学报·自然科学版),35(4):518～522(in Chinese)
[14] Lu R-K(鲁如坤).2000.Analysis Methods of Soil Agricultural Chemistry.Beijing:Agricultural Science Press.(in Chinese)
[15] Ma L-S(马立珊),Lou Y-M(骆永明),Wu L-H(吴龙华).2000.The pibt study of purification development and efficiency of Vetiveria zizanioids with floating technologies on N and P in eutrophic water.Soil(土壤),2:99～101(in Chinese)
[16] Matheson FE,Nguyen ML,Cooper AB,et al.2002.Fate of 15N-nitrate in unplanted,planted and harvested riparian wetland soil microcosms.Ecol Eng,19:249～264
[17] Miao S-Y(缪绅裕),Chen G-Z(陈桂珠),Huang Y-S(黄玉山).1999.Allocation and circulation of phosphorusin artificial westewater within a simulated mangrove wetland system.Acta Ecol Sin(生态学报),19(2):236～241(in Chinese)
[18] Monnet F, Vaillant N, Hitmi A, et al. 2002. Treament of domestic wastewater using the nutrient film technique(NFT)to produce horticultural roses. Water Res, 36:3489 ～ 3496
[19] Peter MG, Arthur JG, Kelly A. 2000. Nitrous oxide production in riparian zones and its importance to national emission inventories.Chernosphere, 2:291 ～ 299
[20] Quan W-M(全为民),Shen X-Q(沈新强),Yan L-J(严力蛟).2003.Advances in research of biological purification of eutrophic water body.Chin J Appl Ecol(应用生态学报),14(11):2057～2081(in Chinese)
[21] Roberto GR, Sarah NP, Brian AW. 1998. Denitrification and nitrous oxide production in sediments of the Wiske, a lowland eutrophic river. Sci Total Environ, 210:307～ 320
[22] Sakadevan K, Bavor HJ. 1998. Phosphate adsorption characteristics of soils, slags and zeolite to be used as substrates in constructed wetland systems. War Res, 32(2):393 ～ 399
[23] Si Y-B(司友斌),Bao J-J(包军杰),Cao D-J(曹德菊),et al.2003.Purification of eutrophicated water body by Vetiveria zizanioids.Chin J Appl Ecol(应用生态学报),14(2):277～279(in Chinese)
[24] Song X-F(宋祥甫),Zou G-Y(邹国燕),Wu W-M(吴伟明),et al.1998.Study on the removal effect and regulation of rice plants a floating beds to main nutrients N and Pin eutrophicated water bodies.Acra Sci Circ(环境科学学报),18(5):489～494(in Chinese)
[25] Sookmh RD,Wilkie AC.2004.Nutrient removal by floating aquatic macrophytes culturedin anaerobically digested flushed dairy manure wastewater.Ecol Eng,22:27～42
[26] State Environmental Protection Adminitration of China(国家环境保护总局).2002.Detecting and analyzing methods of water and wastewater.4th ed.Beijing:China Environmental Science Press.(in Chinese)
[27] Susan BP,John MT.1996.The role of plants in ecologically engineered wastewatertreatment systems.Ecol Eng,6:137～148
[28] Todd LI, Lawrence AB.1998.Nitrate removal in wetland microcosms.Wat Res,32(3):677～684
[29] Xu H(徐华),Xing G-X(邢光熹),Cai Z-C(蔡祖聪),et al.1999.Effect of soil water regime and chemical N fertilizers application on N₂O emission from paddy field.Chin J Appl Ecol(应用生态学报),10(2):186～188(in Chinese)
[30] Yin C-Q(尹澄清),Lan Z-W(兰智文),Yan W-J(晏维金).1995.Retention of allochthonous nutrients by ecotones of Baiyangdian Lake.Chin J Appl Ecol(应用生态学报),6(1):76～80(in Chinese)