Cadmium adsorption in soil influenced by dissolved organic matter derived from rice straw and sediment

Abstract

Abstract: Dissolved organic matter (DOM) is an active component in territorial ecosystems.Effects of two types of DOMs extracted from sediment(DOM_sed) and rice straw(DOM_rs) on isotherm adsorption of Cd in latosol red soil (acidic soil),paddy soil and drab soil(alkaline soil)were studied using batch equilibrium studies.The maximum adsorption of Cd in all the 3 soils used was reduced by the additions of both of DOM_sed and DOM_rs.The range of the maximum adsorption of Cd decreased from 17.3% to 93.9% from all the 3 soils when DOMs were added.It was found that the decreaseds in the maximum adsorption of Cd was in order of latosol red soil>paddy soil>drab soil when the same DOM(DOM_sed or DOM_rs) was added.Effects of DOM_sed or DOM_rs on Cd adsorption were positively related with the soil pH.The maximum adsorption of Cd in the soils was dependent on the characteristics of soil solid when no DOMwas added,and decided by the DOMs in soil solutiom when DOM was added.The results imply that the proposed technology using organic manure to stablize Cd in soils is not suitable for remediation of contaminated soil.

Key words: Soil, Cd, Adsorption, Dissolved organic matter(DOM)

CLC Number:

X171.5

CHEN Tongbin, CHEN Zhijun. Cadmium adsorption in soil influenced by dissolved organic matter derived from rice straw and sediment[J]. Chinese Journal of Applied Ecology, 2002, (2): 183-186.

References

[1] Amrhein C,Strong JE,Mosher PA.1992.Effect of deicing salts on metal and organic matter mobilization in roadside soil.Environ Sci Technol,26:703～709
[2] Barricuso E,Bear U,Calvet R.1992.Dissolved organic matter and adsorption-desorption of Dimefuron,Atrazine and Carbetamide by soils.J Environ Qual,21:737～751
[3] Boyle M,Fuller WH.1987.Effect of municipal solid waste leachate composition on zinc migration through soil.J Environ Qual,16:357～360
[4] Castilho P del,Chardon PW,Salomons W.1993.Seasonal variations of cadmium,zinc and copper solubilities in a manured acidic,loamy-sand soil.J Environ Qual,22:689～697
[5] Chen T-B(陈同斌),Chen Z-J(陈志军).1998.Dissolved organic matter and its effects on adsorption and desorption of pollutants in soils.Plant Nutrit Ferti Sci(植物营养与肥料学报),4(3):201～210(in Chinese)
[6] Chirenje T,Ma LQ.1999.Effects of acidification on metal mobility in a papermill-ash amended soil.J Environ Qual,28(3):760～766
[7] Dawsion HJ,Hrutfiord BF,Zasocki RJ,et al.1981.The molecular weight and origin of yellow organic acids.Soil Sci,132:191～199
[8] Dunnivant FM,Jardine PM,Taylor DL,et al.1992.Cotransport of cadmium and hexachlorobiphenyl by dissolved organic carbon through columns containing aquifer materials.Environ Sci Technol,26:360～368
[9] Elrashidi MA,Baligar VC,Korcak RF,et al.1999.Chemical composition of leachate of dairy manure mixed with fluidized bed combustion residue.J Environ Qual,28(4):1243～1251
[10] Fotovat A,Naidu R,Naidu R.1998.Changes in composition of soil aqueous phase influence chemistry of indigenous heavy metals in alkaline sodic and acidic soils.Geoderma,84:(1～3):213～234
[11] Guo L,Thomas J,Allan B,et al.1993.Sorption and movement of Alachlor in soil modified by carbon-rich waste.J Environ Qual,22:186～194
[12] Hesterberg D,Bril J,Castilho P del.1993.Thermodynamic modeling of zinc,cadmium,and copper solubilities in a manured,acidic loamy-sand topsoil.J Environ Qual,22 (4):681～688
[13] Jiang Y(姜岩),Dou S(窦森).1987.Study on change of organic matter in soils after application of organic manures.Acta Pedol Sin(土壤学报),24(2):97～104(in Chinese)
[14] Leenheer JA,Huffman Jr EWD.1976.Classification of organic solutes in water by using macroparticular resins.J Res US Geol Survey,4(6):737～751
[15] Moore TR,Souza W de,Koprivnjak JK.1992.Control on the sorption of dissolved organic carbon by soils.Soil Sci,142:120～129
[16] Pohlman AA,Mccoll JG.1988.Soluble organic matter from forest litter and their role in metal dissolution.Soil Sci Soc Am J,52:265～271
[17] Tao S(陶澍),Cao J(曹军).1996.Simulated study on leaching dynamic of dissolved organic matter in mountanious region.China Environ Sci(中国环境科学),16(6):410～414(in Chinese)
[18] Wang Q-F(王启发).1993.Effects of Land Application of Crop Straw on Soil Physical Properties,and Adsorption and Desorption of Some Nutrients in Soils.Wuhan:Master Dissertation of Huazhong Agricultural University.46(in Chinese)
[19] Wu Q-T(吴启堂),Chen T-B(陈同斌).1999.Transportation of Pollutants in Territorial Ecosystem and its Computing Simulation.Beijing:China Agricultural Press.184～208(in Chinese)