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Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer

The fish processing sector contributes serious organic pollution loads and high salinity to receiving waters. This research aimed to study the effect of salt (NaCl) concentration on the treatment efficiency of fish processing wastewater in a continuous flow system by natural biodegradation. This res...

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Main Authors: Ching, Yun Chen, Redzwan, Ghufran
Format: Article
Published: MDPI 2017
Subjects:
Q Science (General)
QH Natural history
Online Access:http://eprints.um.edu.my/19205/
http://dx.doi.org/10.3390/su9071062
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spelling my.um.eprints.192052019-12-06T06:03:15Z http://eprints.um.edu.my/19205/ Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer Ching, Yun Chen Redzwan, Ghufran Q Science (General) QH Natural history The fish processing sector contributes serious organic pollution loads and high salinity to receiving waters. This research aimed to study the effect of salt (NaCl) concentration on the treatment efficiency of fish processing wastewater in a continuous flow system by natural biodegradation. This research also focused on the use of a laboratory-scale bioreactor, which is operated in an aerobic continuous flow system with a 5-day cycle treatment of three different concentrations of diluted fish processing wastewater (30-, 50-, and 100-fold) with salt concentrations varying from 0% to 7% w/v NaCl. The evaluation of system performance at nine different operating hydraulic retention times (HRT) that range from 2-10 days indicated that the substrate removal rates increase with the increase in HRT along with the increasing wastewater concentration. The optimum biomass yield was found at the 8-day HRT, and the highest substrate removal was obtained at 10-day HRT. The study on 11 different salt contents in wastewater at the optimal HRTs of 10, nine, and eight days showed the existence of inhibition effects on biomass growth and substrate removal from 3.0% salt concentration. The treated wastewater without offensive odor is feasible for its reutilization as an environmental friendly liquid fertilizer. MDPI 2017 Article PeerReviewed Ching, Yun Chen and Redzwan, Ghufran (2017) Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer. Sustainability, 9 (7). p. 1062. ISSN 2071-1050 http://dx.doi.org/10.3390/su9071062 doi:10.3390/su9071062
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
QH Natural history
spellingShingle Q Science (General)
QH Natural history
Ching, Yun Chen
Redzwan, Ghufran
Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer
description The fish processing sector contributes serious organic pollution loads and high salinity to receiving waters. This research aimed to study the effect of salt (NaCl) concentration on the treatment efficiency of fish processing wastewater in a continuous flow system by natural biodegradation. This research also focused on the use of a laboratory-scale bioreactor, which is operated in an aerobic continuous flow system with a 5-day cycle treatment of three different concentrations of diluted fish processing wastewater (30-, 50-, and 100-fold) with salt concentrations varying from 0% to 7% w/v NaCl. The evaluation of system performance at nine different operating hydraulic retention times (HRT) that range from 2-10 days indicated that the substrate removal rates increase with the increase in HRT along with the increasing wastewater concentration. The optimum biomass yield was found at the 8-day HRT, and the highest substrate removal was obtained at 10-day HRT. The study on 11 different salt contents in wastewater at the optimal HRTs of 10, nine, and eight days showed the existence of inhibition effects on biomass growth and substrate removal from 3.0% salt concentration. The treated wastewater without offensive odor is feasible for its reutilization as an environmental friendly liquid fertilizer.
format Article
author Ching, Yun Chen
Redzwan, Ghufran
author_facet Ching, Yun Chen
Redzwan, Ghufran
author_sort Ching, Yun Chen
title Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer
title_short Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer
title_full Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer
title_fullStr Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer
title_full_unstemmed Biological Treatment of Fish Processing Saline Wastewater for Reuse as Liquid Fertilizer
title_sort biological treatment of fish processing saline wastewater for reuse as liquid fertilizer
publisher MDPI
publishDate 2017
url http://eprints.um.edu.my/19205/
http://dx.doi.org/10.3390/su9071062
_version_ 1654960688588652544
score 13.211869

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