@article{07ddf580961511de802f000ea68e967b,
title = "Phosphorus leaching from soils amended with thermally gasified piggery waste ash",
abstract = "In regions with intensive livestock farming, thermal treatment for local energy extraction from the manure and export of the P rich ash as a fertilizer has gained interest. One of the main risks associated with P fertilizers is eutrophication of water bodies. In this study P and K mobility in ash from anaerobically digested, thermally gasified (GA) and incinerated (IA) piggery waste has been tested using water loads ranging from 0.1 to 200 ml g−1. Leaching of P from soil columns amended with GA was investigated for one P application rate (205 kg P ha−1 corresponding to 91 mg P kg−1 soil dry matter) as a function of precipitation rate (9.5 and 2.5 mm h−1), soil type (Jyndevad agricultural soil and sand), amount of time elapsed between ash amendment and onset of precipitation (0 and 5 weeks) and compared to leaching from soils amended with a commercial fertilizer (Na2HPO4). Water soluble P in GA and IA constituted 0.04% and 0.8% of total ash P. Ash amended soil released much less P (0.35% of total P applied in sand) than Na2HPO4 (97% and 12% of total P applied in Jyndevad and sand, respectively).",
author = "Ksawery Kuligowski and Tjalfe Poulsen",
year = "2009",
doi = "10.1016/j.wasman.2009.04.004",
language = "English",
volume = "29",
pages = "2500 -- 2508",
journal = "Waste Management",
issn = "0956-053X",
publisher = "Pergamon Press",
number = "9",
}