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Bioavailability of heavy metals in soil after non controlled application of sewage sludges ; Biodostupnosť ťažkých kovov v pôdach po aplikácii čistiarenských kalov

Takáč , P. , Technická Univ. , Košice . Fakulta Baníctva , Ekológie , Riadenia A Geotechnológií , Ústav Montážnych Vied A Ochrany Životného Prostredia ; Szabová , T.

Acta Regionalia et Environmentalica, 2009, Vol.(1), pp.25-28 [Tạp chí có phản biện]

ISSN: 1336-5452

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  • Nhan đề:
    Bioavailability of heavy metals in soil after non controlled application of sewage sludges ; Biodostupnosť ťažkých kovov v pôdach po aplikácii čistiarenských kalov
  • Tác giả: Takáč , P. , Technická Univ. , Košice . Fakulta Baníctva , Ekológie , Riadenia A Geotechnológií , Ústav Montážnych Vied A Ochrany Životného Prostredia ; Szabová , T.
  • Chủ đề: Polluted Soil ; Copper ; Lead ; Zinc ; Organic Fertilizers ; Sewage Sludge ; Sol Pollue ; Cuivre ; Plomb ; Zinc ; Engrais Organique ; Boue Residuaire ; Suelo Contaminado ; Cobre ; Plomo ; Cinc ; Abonos Organicos ; Lodos Residuales
  • Là 1 phần của: Acta Regionalia et Environmentalica, 2009, Vol.(1), pp.25-28
  • Mô tả: Eight or ten years after sewage sludge application soil samples were collected for determination of bioavailability of Cu, Pb, and Zn in soil. The heavy metal contents after sewage sludge application exceeded the highest admissible concentration (A1), and the indication value (B) in soils expressively increased the share of mobilizable forms in soils. The mobilizable form for cuprum was 7.5-38.8 mg/kg or 68.7-86% in relation to the concentration extracted with 2M HNO3 - releasable form, for lead 6.6-220 mg/kg or 40.7-85.4% of releasable form, and for zinc 36.3-478 mg/kg or 63.7-78.7% of releasable form. The sewage sludge application increased pH of soils, and in consequence the proportion of mobile forms compared with the control samples was not increased. Mobility of studied form followed the order Zn more than Pb more than Cu. In 2003 Act No. 188/2003 about sewage sludge application on agriculture utilized soils was passed. The basic philosophy of this act is safety on environmental proof of sludge application on soils. We recommended observed mobilizable and mobile forms of heavy metals in soils for sewage sludge application according to Act No. 188/2003. ; Summaries (En, Sk) ; 1 table ; 1 ill., 10 ref.
  • Ngôn ngữ: Slovak
  • Số nhận dạng: ISSN: 1336-5452

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