eprintid: 14757
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/47/57
datestamp: 2023-11-10 03:29:20
lastmod: 2023-11-10 03:29:20
status_changed: 2023-11-10 01:57:43
type: conference_item
metadata_visibility: show
creators_name: Kam, Y.L.
creators_name: Lam, M.K.
creators_name: Cheng, Y.W.
creators_name: Dasan, Y.K.
creators_name: Lau, S.Y.
creators_name: Tan, I.S.
creators_name: Foo, H.C.Y.
title: Decolourization of chicken compost derived liquid fertilizer via synergic ultraviolet (UV) irradiation and ozonation for enhanced microalgae cultivation
ispublished: pub
note: cited By 1; Conference of 2021 International Conference on Process Engineering and Advanced Materials, ICPEAM2020 ; Conference Date: 13 July 2021 Through 15 July 2021; Conference Code:185461
abstract: Compost-derived liquid fertilizers are uncostly and nutrient-enriched; however, its dark brown appearance limits light uptake of microalgae during autotrophic cultivation. Here, integrated UV irradiation/ozonation pretreatment was employed to decolourize the compost solution prior to microalgae cultivation. Aforesaid pretreatment could accomplish 16.52  (8 h) or 40.88  (24 h) decolorization efficiency by using optimal parameters (initial pH of 12, ozone concentration of 30 mg/L, and ozone flow rate of 3 L/min. Compared to untreated compost solution, microalgae Chlorella vulgaris grew better in the medium supplemented with decolourized compost solution (after 24 h UV irradiation/ozonation). For the autotrophic cultivation of C. vulgaris with 10 vol. compost solution, UV irradiation/ozonation pretreatment eventually increases the microalgae dry weight, specific growth rate, and biomass productivity from 0.58 g/L, 0.14 d-1, and 0.040 g/(L·d) to 0.88 g/L, 0.19 d-1, and 0.065 g/(L·d), respectively. Furthermore, the lipid content of microalgae has been increased by 33.33 with pretreatment of compost solution. © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/)
date: 2021
publisher: EDP Sciences
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116927545&doi=10.1051%2fe3sconf%2f202128704013&partnerID=40&md5=5cafca7cbe075ef4a2f3acf4be0cc269
id_number: 10.1051/e3sconf/202128704013
full_text_status: none
publication: E3S Web of Conferences
volume: 287
refereed: TRUE
issn: 25550403
citation:   Kam, Y.L. and Lam, M.K. and Cheng, Y.W. and Dasan, Y.K. and Lau, S.Y. and Tan, I.S. and Foo, H.C.Y.  (2021) Decolourization of chicken compost derived liquid fertilizer via synergic ultraviolet (UV) irradiation and ozonation for enhanced microalgae cultivation.  In: UNSPECIFIED.