<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Differences between vertical mobilities of nutrient and trace elements within a long-term sludge-treated and an adjacent untreated Alpine grassland cambisol were investigated by column experiments. The site had been intensely fertilized with urban sewage sludge for 10 years of 7.5 Mg/ha annually, whereas an adjacent site had been left untreated. A model column experiment was set up to investigate changes of permeabilities and trace element retentions at 0-20 cm and 20-60 cm layers thereof. Elution was performed with de-ionized water at amounts of expected rainfall at the sampling site (1000 mm), as well as with equal volume of manure after biogas production. Long-term sludge treatment increased organic carbon, formation of ammonium and nitrate, and increased vertical mobility of K, P, S, Cu, and Fe, but also slightly higher (below 10-fold) for Na, Sr, Ba, Ni and V. Additional application of manure was of minor effect, mainly upon nitrate formation, and upon leaching of Fe, Mn as well as Fe/Mn proportion. Prior addition of FeCl<sub>2</sub> to the manure in order to increase sulfide precipitation, mainly affected the output of ammonia, but hardly the cations or anions (e.g. P) investigated.</p></abstract>

Differences between vertical mobilities of nutrient and trace elements within a long-term sludge-treated and an adjacent untreated Alpine grassland cambisol were investigated by column experiments. The site had been intensely fertilized with urban sewage sludge for 10 years of 7.5 Mg/ha annually, whereas an adjacent site had been left untreated. A model column experiment was set up to investigate changes of permeabilities and trace element retentions at 0-20 cm and 20-60 cm layers thereof. Elution was performed with de-ionized water at amounts of expected rainfall at the sampling site (1000 mm), as well as with equal volume of manure after biogas production. Long-term sludge treatment increased organic carbon, formation of ammonium and nitrate, and increased vertical mobility of K, P, S, Cu, and Fe, but also slightly higher (below 10-fold) for Na, Sr, Ba, Ni and V. Additional application of manure was of minor effect, mainly upon nitrate formation, and upon leaching of Fe, Mn as well as Fe/Mn proportion. Prior addition of FeCl2 to the manure in order to increase sulfide precipitation, mainly affected the output of ammonia, but hardly the cations or anions (e.g. P) investigated.

Vertical Migrations in an Alpine Grassland Cambisol after Long-Term Sewage Sludge Application

Institute for Food Safety Vienna, Spargelfeldstrasse 191, A 1220 Vienna,

Ecological Chemistry and Engineering S

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Differences between vertical mobilities of nutrient and trace elements within a long-term sludge-treated and an adjacent untreated Alpine grassland cambisol...

Vertical Migrations in an Alpine Grassland Cambisol after Long-Term Sewage Sludge Application

Published Online: Apr 12, 2017

Page range: 141 - 158

DOI: https://doi.org/10.1515/eces-2017-0011

Keywords
sewage sludge deposition, vertical mobilities in soil, soil columns, phosphate, sulfate, nitrate, ammonium, copper, zinc, Fe treatment of biogas residues

© by Manfred Sager

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Vertical Migrations in an Alpine Grassland Cambisol after Long-Term Sewage Sludge Application

Published Online: Apr 12, 2017

Page range: 141 - 158

DOI: https://doi.org/10.1515/eces-2017-0011

Keywordssewage sludge deposition, vertical mobilities in soil, soil columns, phosphate, sulfate, nitrate, ammonium, copper, zinc, Fe treatment of biogas residues

© by Manfred Sager

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
sewage sludge deposition, vertical mobilities in soil, soil columns, phosphate, sulfate, nitrate, ammonium, copper, zinc, Fe treatment of biogas residues