Effects of organic loading rates on reactor performance and microbial community changes during thermophilic aerobic digestion process of high-strength food wastewater

Hyun Min Jang; Jae Won Lee; Jeong Hyub Ha; Jong Moon Park

doi:10.1016/j.biortech.2013.08.090

Effects of organic loading rates on reactor performance and microbial community changes during thermophilic aerobic digestion process of high-strength food wastewater

Hyun Min Jang
, Jae Won Lee
, Jeong Hyub Ha^*
, Jong Moon Park

^*Corresponding author for this work

Environmental Engineering

Pohang University of Science and Technology

Research output: Contribution to journal › Journal article › peer-review

34 Scopus citations

Abstract

To evaluate the applicability of single-stage thermophilic aerobic digestion (TAD) process treating high-strength food wastewater (FWW), TAD process was operated at four organic loading rates (OLRs) from 9.2 to 37.2kgCOD/m³d. The effects of OLRs on microbial community changes were also examined. The highest volumetric removal rate (13.3kgCOD/m³d) and the highest thermo-stable protease activity (0.95unit/mL) were detected at OLR=18.6kgCOD/m³d. Denaturing gradient gel electrophoresis (DGGE) profiles and quantitative PCR (qPCR) results showed significant microbial community shifts in response to changes in OLR. In particular, DGGE and phylogenetic analysis demonstrate that the presence of Bacillus sp. (phylum of Firmicutes) was strongly correlated with efficient removal of organic particulates from high-strength food wastewater.

Original language	English
Pages (from-to)	261-269
Number of pages	9
Journal	Bioresource Technology
Volume	148
DOIs	https://doi.org/10.1016/j.biortech.2013.08.090
State	Published - 2013.11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Food wastewater
Microbial community
Organic loading rate (OLR)
Protease activity
Thermophilic aerobic digestion (TAD)

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10.1016/j.biortech.2013.08.090

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@article{153ac2283f6c4d799d0dd7b825b96651,

title = "Effects of organic loading rates on reactor performance and microbial community changes during thermophilic aerobic digestion process of high-strength food wastewater",

abstract = "To evaluate the applicability of single-stage thermophilic aerobic digestion (TAD) process treating high-strength food wastewater (FWW), TAD process was operated at four organic loading rates (OLRs) from 9.2 to 37.2kgCOD/m3d. The effects of OLRs on microbial community changes were also examined. The highest volumetric removal rate (13.3kgCOD/m3d) and the highest thermo-stable protease activity (0.95unit/mL) were detected at OLR=18.6kgCOD/m3d. Denaturing gradient gel electrophoresis (DGGE) profiles and quantitative PCR (qPCR) results showed significant microbial community shifts in response to changes in OLR. In particular, DGGE and phylogenetic analysis demonstrate that the presence of Bacillus sp. (phylum of Firmicutes) was strongly correlated with efficient removal of organic particulates from high-strength food wastewater.",

keywords = "Food wastewater, Microbial community, Organic loading rate (OLR), Protease activity, Thermophilic aerobic digestion (TAD)",

author = "Jang, \{Hyun Min\} and Lee, \{Jae Won\} and Ha, \{Jeong Hyub\} and Park, \{Jong Moon\}",

year = "2013",

month = nov,

doi = "10.1016/j.biortech.2013.08.090",

language = "English",

volume = "148",

pages = "261--269",

journal = "Bioresource Technology",

issn = "0960-8524",

}

TY - JOUR

T1 - Effects of organic loading rates on reactor performance and microbial community changes during thermophilic aerobic digestion process of high-strength food wastewater

AU - Jang, Hyun Min

AU - Lee, Jae Won

AU - Ha, Jeong Hyub

AU - Park, Jong Moon

PY - 2013/11

Y1 - 2013/11

N2 - To evaluate the applicability of single-stage thermophilic aerobic digestion (TAD) process treating high-strength food wastewater (FWW), TAD process was operated at four organic loading rates (OLRs) from 9.2 to 37.2kgCOD/m3d. The effects of OLRs on microbial community changes were also examined. The highest volumetric removal rate (13.3kgCOD/m3d) and the highest thermo-stable protease activity (0.95unit/mL) were detected at OLR=18.6kgCOD/m3d. Denaturing gradient gel electrophoresis (DGGE) profiles and quantitative PCR (qPCR) results showed significant microbial community shifts in response to changes in OLR. In particular, DGGE and phylogenetic analysis demonstrate that the presence of Bacillus sp. (phylum of Firmicutes) was strongly correlated with efficient removal of organic particulates from high-strength food wastewater.

AB - To evaluate the applicability of single-stage thermophilic aerobic digestion (TAD) process treating high-strength food wastewater (FWW), TAD process was operated at four organic loading rates (OLRs) from 9.2 to 37.2kgCOD/m3d. The effects of OLRs on microbial community changes were also examined. The highest volumetric removal rate (13.3kgCOD/m3d) and the highest thermo-stable protease activity (0.95unit/mL) were detected at OLR=18.6kgCOD/m3d. Denaturing gradient gel electrophoresis (DGGE) profiles and quantitative PCR (qPCR) results showed significant microbial community shifts in response to changes in OLR. In particular, DGGE and phylogenetic analysis demonstrate that the presence of Bacillus sp. (phylum of Firmicutes) was strongly correlated with efficient removal of organic particulates from high-strength food wastewater.

KW - Food wastewater

KW - Microbial community

KW - Organic loading rate (OLR)

KW - Protease activity

KW - Thermophilic aerobic digestion (TAD)

UR - https://www.scopus.com/pages/publications/84884263266

U2 - 10.1016/j.biortech.2013.08.090

DO - 10.1016/j.biortech.2013.08.090

M3 - Journal article

C2 - 24055968

AN - SCOPUS:84884263266

SN - 0960-8524

VL - 148

SP - 261

EP - 269

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Effects of organic loading rates on reactor performance and microbial community changes during thermophilic aerobic digestion process of high-strength food wastewater

Abstract

UN SDGs

Keywords

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