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A pilot-scale anaerobic moving-bed biofilm reactor with PVA gel beads as media for the treatment of fish canning industry wastewater
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Document Title
A pilot-scale anaerobic moving-bed biofilm reactor with PVA gel beads as media for the treatment of fish canning industry wastewater
Author
Jirasaranporn A, Jantharadej K, Wongwailikhit K, Chawengkijwanich C, Lohwatcharin J, Suwannasilp BB
Name from Authors Collection
Affiliations
Chulalongkorn University; Chulalongkorn University; National Science & Technology Development Agency - Thailand; National Nanotechnology Center (NANOTEC); Chulalongkorn University
Type
Article
Source Title
WATER REUSE
ISSN
2709-6092
Year
2022
Volume
12
Issue
2
Page
206-222
Open Access
gold
Publisher
IWA PUBLISHING
DOI
10.2166/wrd.2022.090
Format
Abstract
This research aims to investigate the performance of a pilot-scale anaerobic moving-bed biofilm reactor (AnMBBR) using PVA gels as media for the treatment of real wastewater from a fish canning factory. The chemical oxygen demand (COD) removal efficiencies at different organic loading rates (OLRs) were investigated at 3.0, 4.3, 6.5, and 8.7 kg COD/m(3) day by adjusting the flow rates to 350, 500, 750 and 1,000 L/d, respectively. The soluble COD removal efficiencies of the system at flow rates of 350, 500, 750, and 1,000 L/d were 81.0 +/- 12.4%, 76.8 +/- 8.2%, 74.7 +/- 6.2%, and 70.6 +/- 12.4%, respectively. According to the residence time distribution (RTD) tests at the highest and lowest flow rates, the mean residence times of both flow rates were significantly higher than the theoretical residence time, indicating very strong external recirculation inside the AnMBBR. The results suggest a 3-pass flow pattern through the AnMBBR. From 16S rRNA gene amplicon sequencing (MiSeq, Illumine) and scanning electron microscopy (SEM) analysis, Methanosaeta, acetoclastic methanogens, were the predominant microorganisms in the system. Most of the microorganisms were located within a 1.994 +/- 0.266 mm depth from the PVA gel surface, with two distinct layers.
Keyword
AnMBBR | food wastewater | pilot-scale | polyvinyl alcohol gel
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Funding Sponsor
Research Network NANOTEC (RNN) program of the National Nanotechnology Center (NANOTEC); National Science and Technology Development Agency (NSTDA); Ministry of Higher Education, Science, Research and Innovation, Thailand; Kuraray Co., Ltd, Japan
Publication Source
WOS