期刊文献+

Effect of lime on speciation of heavy metals during composting of water hyacinth 被引量:3

Effect of lime on speciation of heavy metals during composting of water hyacinth
原文传递
导出
摘要 Composting is attractive and inexpensive method for treatment and biomass disposal of water hyacinth. However, the major disadvantage of water hyacinth composting is the high content of heavy metals in the final compost. Addition of lime sludge significantly reduced most bioavailable fractions (exchangeable and carbonate) of heavy metals. Studies were carried on composting of water hyacinth (Eichhornia crassipes) with cattle manure and sawdust (6:3:1 ratio) and effects of addition of lime (1%, 2% and 3%) on heavy metal speciation were evaluated during 30 days of composting period. The Tessier sequential extraction method was employed to investigate the changes in speciation of heavy metals such as Zinc (Zn), Copper (Cu), Manganese (Mn), Iron (Fe), Lead (Pb), Nickel (Ni), Cadmium (Cd) and Chromium (Cr) during water hyacinth composting. Effects of physicochemical parameters such as temperature, pH and organic matter on speciation of heavy metals were also studied during the process. Results showed that, the total metal content was increased during the composting process. The higher reduction in bioavailability factor (BF) of Cu, Fe, Ni, Cd and Cr was observed in lime 2 treatment about 62.1%, 64.4%, 71.9%, 62.1% and 58.9% respectively; however higher reduction in BF of Zn and Pb was observed in lime 1 treatment during the composting process. Reducible and oxidizable fractions of Ni, Pb and Cd were not observed during the process. Addition of lime was very effective for reduction ofbioavailability of heavy metals during composting of water hyacinth with cattle manure and sawdust. Composting is attractive and inexpensive method for treatment and biomass disposal of water hyacinth. However, the major disadvantage of water hyacinth composting is the high content of heavy metals in the final compost. Addition of lime sludge significantly reduced most bioavailable fractions (exchangeable and carbonate) of heavy metals. Studies were carried on composting of water hyacinth (Eichhornia crassipes) with cattle manure and sawdust (6:3:1 ratio) and effects of addition of lime (1%, 2% and 3%) on heavy metal speciation were evaluated during 30 days of composting period. The Tessier sequential extraction method was employed to investigate the changes in speciation of heavy metals such as Zinc (Zn), Copper (Cu), Manganese (Mn), Iron (Fe), Lead (Pb), Nickel (Ni), Cadmium (Cd) and Chromium (Cr) during water hyacinth composting. Effects of physicochemical parameters such as temperature, pH and organic matter on speciation of heavy metals were also studied during the process. Results showed that, the total metal content was increased during the composting process. The higher reduction in bioavailability factor (BF) of Cu, Fe, Ni, Cd and Cr was observed in lime 2 treatment about 62.1%, 64.4%, 71.9%, 62.1% and 58.9% respectively; however higher reduction in BF of Zn and Pb was observed in lime 1 treatment during the composting process. Reducible and oxidizable fractions of Ni, Pb and Cd were not observed during the process. Addition of lime was very effective for reduction ofbioavailability of heavy metals during composting of water hyacinth with cattle manure and sawdust.
出处 《Frontiers of Environmental Science & Engineering》 SCIE EI CAS CSCD 2016年第1期93-102,共10页 环境科学与工程前沿(英文)
关键词 COMPOSTING LIME heavy metals bioavailabil-ity factor SPECIATION composting, lime, heavy metals, bioavailabil-ity factor, speciation
  • 相关文献

参考文献2

二级参考文献13

  • 1CarmalinSophiaA K.Swaminathan.Leaching of metals on stabilization of metal sludge using cement based materials[J].Journal of Environmental Sciences,2005,17(1):115-118. 被引量:3
  • 2Baham J,,Sposito G.Proton and metal complexation bywater-soluble ligands extracted from anaerobically digestedsewage sludge[].Journal of Environmental Quality.1996
  • 3Fu J P.Determination of soil humic substance fractions[].Chinese Journal of Soil Science.1983
  • 4Gao J,Lam K C,Dawson R W,Liu W X,Tao S.The effectof pH, ion strength and reactant content on the complexationof Cu2+ by various natural organic ligands from water and soilin Hong Kong[].Chemosphere.2004
  • 5Heikkinen K.Nature of dissolved organic matter in thedrainage basin of a boreal humic river in northern Finland[].Journal of Environmental Quality.1990
  • 6Hsu J H,Lo S L.Effect of composting on characterizationand leaching of copper, manganese and zinc from swinemanure[].Environmental Pollution.2001
  • 7Inaba S,Takenaka C.Effects of dissolved organic matteron toxicity and bioavailability for lettuce sprouts[].Environment International.2005
  • 8Schinitzer M,Skinner S I M.Organo-metallic interactionin soil[].Soil Science.1966
  • 9Schnitzer M,Lowe L E,Dormaar J F,Martel Y.A procedurefor the characterization of soil organic matter[].CanadianJournal of Soil Science.1981
  • 10Schwab P,Zhu D,Banks M K.Heavy metal leaching frommine tailings as affected by organic amendments[].Bioresource Technology.2007

共引文献19

同被引文献18

引证文献3

二级引证文献25

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部