Recycling of calcium-silicate material after wastewater filtration to agriculture -Soil condition impact
2012 (English)In: Ecological Chemistry and Engineering S, ISSN 1898-6196, Vol. 19, no 3, 373-382 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2012. Vol. 19, no 3, 373-382 p.
amendment, fosfor, liming, phosphorus, Polonite, soil, sorpcja, sorption, wapnowanie, wzbogacenie gleby
Water Engineering Soil Science
IdentifiersURN: urn:nbn:se:kth:diva-101312DOI: 10.2478/v10216-011-0027-6ISI: 000307645200006ScopusID: 2-s2.0-84864133578OAI: oai:DiVA.org:kth-101312DiVA: diva2:547072
QC 201208272012-08-272012-08-272012-11-06Bibliographically approved