Search results for: METAL SPECIATION

• Influence of sludge treatment processes on heavy metal speciation

  Publication

  • H. Obarska-Pempkowiak
  • M. Gajewska

  - Year 2008

  Sludge composition is depending on sewage quality and also affected by processing methods such as thickening, stabilization and dewatering. During those processes some of sludge's undesirable properties might be reduced or enhanced.The objective of the study is the assessment of the influence of sludge processing on selected heavy metals partitioning between phases (aqueous and particle) and sludge. Sludge from the WWTP in Gdansk...

• Speciation of heavy metal compounds in samples of biota from marine ecosystems

  Publication

  • G. Bajger-Nowak
  • P. Konieczka
  • J. Namieśnik

  - CHEMICAL SPECIATION AND BIOAVAILABILITY - Year 2011

  It has become increasingly evident that the toxicity, mobility, bioavailability and bioaccumulation of metals are dependent on the particular physico-chemical form in which the element occurs in the environment. Special attention is paid to metals, which are essential for the proper functioning of organisms if present in appropriate amounts but are toxic if in excess (i.e. Se, Cr, Zn), and also to non-essential elements (i.e. Hg,...

• The 15th Workshop on Progress in Trace Metal Speciation for Environmental Analytical Chemistry

  Publication

  • R. Marcinkowska
  • J. Namieśnik

  - ANALYTICAL AND BIOANALYTICAL CHEMISTRY - Year 2017

  Artykuł jest sprawozdaniem z konferencji TRACESPEC - the 15th Workshop on progress in trace Metal Speciation for Environmental Analytical Chemistry, ktora odbyla sie we wrzesniu 2016 na Politechnice Gdańskiej. W artykule przedstawiono głowne cele i załozenia konferencji oraz opisano program naukowy.

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• The speciation and physico-chemical forms of metals in surface waters and sediments

  Publication

  • J. Namieśnik
  • A. Rabajczyk

  - CHEMICAL SPECIATION AND BIOAVAILABILITY - Year 2010

  Wody powierzchniowe mogą być zanieczyszczone przez metale występujące w różnych formach fizykochemicznych przez metale w postaci jonowej jak i również metale związane z materia zawieszoną. Substancje nierozpuszczone występujące w postaci koloidów lub w postaci zaabsorbowanej na powierzchni materii zawieszonej mogą ulegać procesowi rozpuszczania w odpowiedzi na zamianę warunków chemicznych i fizycznych środowiska wodnego.Również...

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• The speciation of selected heavy metals in sewage sludge stabilized in reed basins

  Publication

  • K. Kołecka
  • S. Nielsen
  • H. Obarska-Pempkowiak

  - Year 2008

  The aim of the work was to determine influence of time on organic matter content, nutrients concentrations as well as speciation of selected heavy metals (Cd, Pb, Ni, Cr, Cu and Zn) in sewage sludge stabilized in reed basins during 7-15 years. The analyzed sewage sludge was collected from reed basins from four municipal WWTPs located in Denmark serving from 9 000 to 40 000 pe in Vallo, Rudkøbing, Nakskov and Helsinge. Sewage...

• Removal and speciation of heavy metals in the constructed wetland treating landfill leachate

  Publication

  • E. Wojciechowska

  - Year 2010

  The results of heavy metals removal and speciation of metals at two treatment wetlands receiving landfill are discussed. The first TW is a surface flow facility consisting of 10 ponds. The next TW is a newly constructed pilot-scale facility consisting of three beds with alternately vertical and horizontal sub-surface flow. The metals concentrations were analysed in leachate(both TWs) and bottom sediments (surface flow TW). Seasonal...

• Speciation of heavy metals in wastewater and rejected waters from multistage bioreactors (MUCT)

  Publication

  • H. Obarska-Pempkowiak
  • M. Gajewska

  - Year 2007

  The objective of the study is to investigate the occurrence and availability of selected heavy metals after subsequent stages of treatment in WWTP with activated sludge (enhanced biological N and P removal). To achieved the target it was necessary to recognize the allocation of selected heavy metals between aqueous and solid phase in wastewater and reject waters. Application of sequential extraction of such metals as Cd Zn, Pb,...

• CHEMICAL SPECIATION AND BIOAVAILABILITY

  Journals

  ISSN: 0954-2299 , eISSN: 2047-6523

• Role of biochar-based free radicals in immobilization and speciation of metals in the contaminated soil-plant environment

  Publication

  • M. Rashid
  • G. Liu
  • B. Yousaf
  • Y. Hamid
  • A. Rehman
  • M. Arif
  • R. Ahmed
  • Y. Song
  • A. Ashraf

  - Journal of Environmental Management - Year 2023

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• Metals

  Journals

  ISSN: 2075-4701