<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Reactive filter materials aimed at phosphorus (P) recovery is a novel method for on-site wastewater treatment. Once the bed filter is no longer effective, the sorbent must be replaced and can then be recycled as a soil amendment to agriculture. This study investigated the short-term effects of such amendments in a field with a wheat crop in order to evaluate the risks and/or potential benefits of this disposal option. The developed product Polonite (manufactured from Opoka) was used as a model filter sorbent in the field trial. Rates corresponding to approximately 6 and 8 tons per hectare were applied. In the short-term, this amending did not affect soil physical and sorption properties. The rate of Polonite used here, as P source for wheat was irrelevant in this kind of soil. The usefulness of this disposal option of exhausted filter material is discussed.</p></abstract>

Reactive filter materials aimed at phosphorus (P) recovery is a novel method for on-site wastewater treatment. Once the bed filter is no longer effective, the sorbent must be replaced and can then be recycled as a soil amendment to agriculture. This study investigated the short-term effects of such amendments in a field with a wheat crop in order to evaluate the risks and/or potential benefits of this disposal option. The developed product Polonite (manufactured from Opoka) was used as a model filter sorbent in the field trial. Rates corresponding to approximately 6 and 8 tons per hectare were applied. In the short-term, this amending did not affect soil physical and sorption properties. The rate of Polonite used here, as P source for wheat was irrelevant in this kind of soil. The usefulness of this disposal option of exhausted filter material is discussed.

Recycling of Calcium-Silicate Material After Wastewater Filtration to Agriculture - Soil Condition Impact

Department of Land and Water Resources Engineering, KTH Royal Institute of Technology, Teknikringen 76, SE-100 44 Stockholm, Sweden

Department of Soil Science and Soil Protection, University of Agriculture in Krakow, al. A. Mickiewicza 21, 31-120 Kraków, Poland

Ecological Chemistry and Engineering S

Reactive filter materials aimed at phosphorus (P) recovery is a novel method for on-site wastewater treatment. Once the bed filter is no longer effective, the...

Recycling of Calcium-Silicate Material After Wastewater Filtration to Agriculture - Soil Condition Impact

Published Online: Jul 16, 2012

Page range: 373 - 382

DOI: https://doi.org/10.2478/v10216-011-0027-6

Keywords
amendment, liming, phosphorus, Polonite, soil, sorption

This content is open access.

Recycling of Calcium-Silicate Material After Wastewater Filtration to Agriculture - Soil Condition Impact

Published Online: Jul 16, 2012

Page range: 373 - 382

DOI: https://doi.org/10.2478/v10216-011-0027-6

Keywordsamendment, liming, phosphorus, Polonite, soil, sorption

This content is open access.

Keywords
amendment, liming, phosphorus, Polonite, soil, sorption