Measurement of ion speciation in animal slurries using the Donnan Membrane Technique

B. van der Stelt, E.J.M. Temminghoff, W.H. van Riemsdijk

Research output: Contribution to journalArticleAcademicpeer-review

24 Citations (Scopus)

Abstract

The availability of nutrients in animal slurry for plant uptake depends on the total content as well as on the forms in which these nutrients are present in slurry manure. A DMT-manure cell was developed which can help to determine the speciation of nutrients in animal slurries. The cell consists of an acceptor compartment, which is separated from the slurry by two negatively charged cation-exchange membranes. The membranes only allow exchange of 'free' cations between the slurry and the acceptor solution. After about 4 days, Donnan equilibrium will be reached between 'free' cation concentrations in the acceptor solution and the 'free' cation concentrations in the animal slurry. The DMT-manure cell has been used to study the effect of dilution of animal slurry (with distilled water) on 'free' ionic species (K+, Mg2+, Na+, Ca2+ and NH4+). Total nutrient concentrations and the 'free' K+, Na+ and NH 4+ concentrations decreased proportionately with increasing dilution. In contrast, the 'free' concentrations of Ca2+ and Mg2+ remained more or less constant upon dilution. The buffering of the 'free' Ca2+ and Mg2+ concentrations is most probably the result of Ca2+ and Mg2+ release from organic matter. Also, dissolution of phosphate minerals (struvite and whitlockite), which were likely present in the initial slurry, may have contributed to the buffering of the 'free' Ca2+ and Mg2+ concentrations
Original languageEnglish
Pages (from-to)135-140
JournalAnalytica Chimica Acta
Volume552
Issue number1-2
DOIs
Publication statusPublished - 2005

Fingerprint

Slurries
Nutrients
slurry
Manure
Cations
Manures
Animals
Ions
Dilution
membrane
Membranes
Food
ion
animal
Phosphate minerals
manure
dilution
nutrient
cation
buffering

Keywords

  • cattle slurry
  • trace-metals
  • ammonia loss
  • manure
  • binding
  • release
  • systems
  • matter
  • acid

Cite this

van der Stelt, B. ; Temminghoff, E.J.M. ; van Riemsdijk, W.H. / Measurement of ion speciation in animal slurries using the Donnan Membrane Technique. In: Analytica Chimica Acta. 2005 ; Vol. 552, No. 1-2. pp. 135-140.
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abstract = "The availability of nutrients in animal slurry for plant uptake depends on the total content as well as on the forms in which these nutrients are present in slurry manure. A DMT-manure cell was developed which can help to determine the speciation of nutrients in animal slurries. The cell consists of an acceptor compartment, which is separated from the slurry by two negatively charged cation-exchange membranes. The membranes only allow exchange of 'free' cations between the slurry and the acceptor solution. After about 4 days, Donnan equilibrium will be reached between 'free' cation concentrations in the acceptor solution and the 'free' cation concentrations in the animal slurry. The DMT-manure cell has been used to study the effect of dilution of animal slurry (with distilled water) on 'free' ionic species (K+, Mg2+, Na+, Ca2+ and NH4+). Total nutrient concentrations and the 'free' K+, Na+ and NH 4+ concentrations decreased proportionately with increasing dilution. In contrast, the 'free' concentrations of Ca2+ and Mg2+ remained more or less constant upon dilution. The buffering of the 'free' Ca2+ and Mg2+ concentrations is most probably the result of Ca2+ and Mg2+ release from organic matter. Also, dissolution of phosphate minerals (struvite and whitlockite), which were likely present in the initial slurry, may have contributed to the buffering of the 'free' Ca2+ and Mg2+ concentrations",
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van der Stelt, B, Temminghoff, EJM & van Riemsdijk, WH 2005, 'Measurement of ion speciation in animal slurries using the Donnan Membrane Technique', Analytica Chimica Acta, vol. 552, no. 1-2, pp. 135-140. https://doi.org/10.1016/j.aca.2005.07.039

Measurement of ion speciation in animal slurries using the Donnan Membrane Technique. / van der Stelt, B.; Temminghoff, E.J.M.; van Riemsdijk, W.H.

In: Analytica Chimica Acta, Vol. 552, No. 1-2, 2005, p. 135-140.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Measurement of ion speciation in animal slurries using the Donnan Membrane Technique

AU - van der Stelt, B.

AU - Temminghoff, E.J.M.

AU - van Riemsdijk, W.H.

PY - 2005

Y1 - 2005

N2 - The availability of nutrients in animal slurry for plant uptake depends on the total content as well as on the forms in which these nutrients are present in slurry manure. A DMT-manure cell was developed which can help to determine the speciation of nutrients in animal slurries. The cell consists of an acceptor compartment, which is separated from the slurry by two negatively charged cation-exchange membranes. The membranes only allow exchange of 'free' cations between the slurry and the acceptor solution. After about 4 days, Donnan equilibrium will be reached between 'free' cation concentrations in the acceptor solution and the 'free' cation concentrations in the animal slurry. The DMT-manure cell has been used to study the effect of dilution of animal slurry (with distilled water) on 'free' ionic species (K+, Mg2+, Na+, Ca2+ and NH4+). Total nutrient concentrations and the 'free' K+, Na+ and NH 4+ concentrations decreased proportionately with increasing dilution. In contrast, the 'free' concentrations of Ca2+ and Mg2+ remained more or less constant upon dilution. The buffering of the 'free' Ca2+ and Mg2+ concentrations is most probably the result of Ca2+ and Mg2+ release from organic matter. Also, dissolution of phosphate minerals (struvite and whitlockite), which were likely present in the initial slurry, may have contributed to the buffering of the 'free' Ca2+ and Mg2+ concentrations

AB - The availability of nutrients in animal slurry for plant uptake depends on the total content as well as on the forms in which these nutrients are present in slurry manure. A DMT-manure cell was developed which can help to determine the speciation of nutrients in animal slurries. The cell consists of an acceptor compartment, which is separated from the slurry by two negatively charged cation-exchange membranes. The membranes only allow exchange of 'free' cations between the slurry and the acceptor solution. After about 4 days, Donnan equilibrium will be reached between 'free' cation concentrations in the acceptor solution and the 'free' cation concentrations in the animal slurry. The DMT-manure cell has been used to study the effect of dilution of animal slurry (with distilled water) on 'free' ionic species (K+, Mg2+, Na+, Ca2+ and NH4+). Total nutrient concentrations and the 'free' K+, Na+ and NH 4+ concentrations decreased proportionately with increasing dilution. In contrast, the 'free' concentrations of Ca2+ and Mg2+ remained more or less constant upon dilution. The buffering of the 'free' Ca2+ and Mg2+ concentrations is most probably the result of Ca2+ and Mg2+ release from organic matter. Also, dissolution of phosphate minerals (struvite and whitlockite), which were likely present in the initial slurry, may have contributed to the buffering of the 'free' Ca2+ and Mg2+ concentrations

KW - cattle slurry

KW - trace-metals

KW - ammonia loss

KW - manure

KW - binding

KW - release

KW - systems

KW - matter

KW - acid

U2 - 10.1016/j.aca.2005.07.039

DO - 10.1016/j.aca.2005.07.039

M3 - Article

VL - 552

SP - 135

EP - 140

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

SN - 0003-2670

IS - 1-2

ER -