eprintid: 10078664
rev_number: 23
eprint_status: archive
userid: 608
dir: disk0/10/07/86/64
datestamp: 2019-07-24 09:59:28
lastmod: 2021-10-05 00:33:10
status_changed: 2019-07-24 09:59:28
type: article
metadata_visibility: show
creators_name: Leng, L
creators_name: Bogush, AA
creators_name: Roy, A
creators_name: Stegemann, JA
title: Characterisation of ashes from waste biomass power plants and phosphorus recovery
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F44
keywords: Incineration, Fertiliser, Phosphorus recovery, Acid neutralization capacity, Animal manure
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Biowastes, such as meat and bone meal (MBM), and poultry litter (PL), are used as energy sources for industrial combustion in the UK. However, the biomass ashes remaining after combustion, which contain nutrients such as phosphorus, are landfilled rather than utilised. To promote their utilisation, biomass ashes from industries were characterised in terms of their elemental and mineral compositions, phosphorus extractability, and pH-dependent leachability. These ashes were highly alkaline (pH as high as 13), and rich in calcium and phosphorus. The P bio-availabilities in the ash evaluated by Olsen's extraction were low. Hydroxyapatite and potassium sodium calcium phosphate were identified by X-ray powder diffraction (XRD) as the major phases in the MBM and PL ashes, respectively. The leaching of P, Ca, and many other elements was pH dependent, with considerable increase in leaching below about pH 6. P recovery by acid dissolution (e.g., with H2SO4) seems feasible and promising; the optimized acid consumption for ~90% P recovery could be as low as 3.2–5.3 mol H+/mol P.
date: 2019-11-10
date_type: published
official_url: https://doi.org/10.1016/j.scitotenv.2019.06.312
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
article_type_text: Journal Article
verified: verified_manual
elements_id: 1673638
doi: 10.1016/j.scitotenv.2019.06.312
lyricists_name: Bogush, Anna
lyricists_name: Stegemann, Julia
lyricists_id: ABOGU43
lyricists_id: JSTEG94
actors_name: Stegemann, Julia
actors_id: JSTEG94
actors_role: owner
full_text_status: public
publication: Science of the Total Environment
volume: 690
pagerange: 573-583
issn: 1879-1026
citation:        Leng, L;    Bogush, AA;    Roy, A;    Stegemann, JA;      (2019)    Characterisation of ashes from waste biomass power plants and phosphorus recovery.                   Science of the Total Environment , 690    pp. 573-583.    10.1016/j.scitotenv.2019.06.312 <https://doi.org/10.1016/j.scitotenv.2019.06.312>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10078664/8/Stegemann%20STOTEN-D-19-07294R1.pdf