Development of a treatment system for molasses wastewater: The effects of cation inhibition on the anaerobic degradation process

Onodera, Takashi; Sase, Shinya; Choeisai, Pairaya; Yoochatchaval, Wilasinee; Sumino, Haruhiko; Yamaguchi, Takashi; Ebie, Yoshitaka; Xu, Kai; Tomioka, Noriko; Mizuochi, Motoyuki; Syutsubo, Kazuaki

doi:10.1016/j.biortech.2012.12.126

Cited by 45 publications

(22 citation statements)

References 24 publications

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“…2.8 g L À1 ; K + : 1.3 g L À1 ; Ca 2+ : 0.5 g L À1 ; Mg 2+ : 0.4 g L À1 ) during Phase 6 (Table S1). The concentrations of individual cations in this study are lower than those in previous reports of inhibition (Chen et al, 2008;Kugelman and Chin, 1971;Onodera et al, 2013). In addition, Kugelman and Chin (1971) described antagonism of toxicity by multiple cations with acetate feeding in a laboratory-scale digester, suggesting that cation inhibition of aceticlastic methanogens did not occur significantly in the MS-UASB reactor.…”

contrasting

confidence: 80%

“…In addition, with high Ca 2+ concentration (780-1560 mgCa L À1 ), very low methanogenic activity (approximately <0.1 gCOD gVSS À1 d À1 ) with acetate was demonstrated by calcium precipitation in granules (Van Langerak et al, 2000). Onodera et al (2013) reported that the COD removal rate in a mesophilic (35°C) USSB reactor used to treat diluted molasses decreased from 37 kgCOD m À3 d À1 to 8 kgCOD m À3 d À1 with an increase in the influent cation concentration from approximately 4.0 to 14.3 g L À1 . However, a remarkable decrease in organic removal efficiency was not observed because OLR was increased with the monitoring of cation concentration to avoid the inhibition on the anaerobic degradation (Table S1) .…”

Section: Organic Removalmentioning

confidence: 99%

“…A high cation concentration is known to be a causative factor of methanogenic activity inhibition (Chen et al, 2008). Onodera et al (2013) reported that the COD removal rate decreased from 37 kgCOD m À3 d À1 to 8 kgCOD m À3 d À1 while the cation concentration was 14.3 g L À1 (Na + : approx. 6.8 g L À1 ; K + : 6.0 g L À1 ; Ca 2+ : 1.0 g L À1 ; Mg 2+ : 0.5 g L À1 ).…”

mentioning

confidence: 99%

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High organic loading treatment for industrial molasses wastewater and microbial community shifts corresponding to system development

Kuroda

Chosei

Nakahara

et al. 2015

Bioresource Technology

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contrasting

confidence: 80%

Section: Organic Removalmentioning

confidence: 99%

mentioning

confidence: 99%

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High organic loading treatment for industrial molasses wastewater and microbial community shifts corresponding to system development

Kuroda

Chosei

Nakahara

et al. 2015

Bioresource Technology

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“…Our research group has been developing a combined anaerobic-aerobic system consisting of a UASB and a downflow hanging sponge (DHS) as an energy-saving wastewater treatment system (Tandukar et al, 2007). DHS is an aerobic trickling filter system that uses sponge as the supporting medium (Takahashi et al, 2004), and it has been used for treating various industrial wastewaters (El-Kamah et al, 2011;Onodera et al, 2013). First, UASB removes most of the organic compounds and converts them to methane.…”

Section: Introductionmentioning

confidence: 99%

Development of UASB-DHS System for Treating Industrial Wastewater Containing Ethylene Glycol

Watari

Tanikawa

Kuroda

et al. 2015

J. of Wat. & Envir. Tech.

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This study evaluated the performance of a novel treatment system consisting of an upflow anaerobic sludge blanket (UASB) and a downflow hanging sponge (DHS) for the treatment of industrial wastewater containing 8% ethylene glycol and 2% propylene glycol discharged from a rubber production unit. The system achieved high COD removal (91 ± 4.3%) and methane recovery (82 ± 20%) at an organic loading rate of 8.5 kg-COD/(m 3 ·day). The UASB allowed an organic loading rate of 14 kg-COD/(m 3 ·day) with a constant hydraulic retention time of 24 h. The COD of DHS effluent was 370 ± 250 mg-COD/L during the entire experimental period. Thus, the proposed system could be applicable for treating industrial wastewater containing ethylene glycol. Massively parallel 16S rRNA gene sequencing elucidated the microbial community structure of the UASB. The dominant family Pelobacteriaceae could mainly degrade the organic compounds of ethylene glycol and decomposed products of ethanol. In Archaea, the hydrogenotrophic methanogen family Methanobacteriaceae was predominant in UASB granular sludge.

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“…Anaerobic treatment (biomethanation) is widely applied for the treatment of molasses wastewater (Satyawali and Balakrishnan, 2008;Onodera et al, 2013). However, the removal of color in anaerobic treatment is not significant (Satyawali and Balakrishnan, 2008).…”

Section: Introductionmentioning

confidence: 99%

Removal of Color from Molasses Wastewater Using Membrane Bioreactor with Acidic Condition

Shahata

Omata

Urase

2013

J. of Wat. ^|^ Envir. Tech.

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The advantage of acidic operation below pH of 3 in membrane bioreactors (MBRs) for the treatment of molasses wastewater was examined. Stable operation of both an acidic reactor and a neutral pH reactor was observed for 91 days. Percent COD removal was 48.5% for the acidic reactor and 63.6% for the neutral pH reactor when biologically pretreated molasses wastewater was fed to the reactors. Higher percentage removals of COD (89.0% for the neutral pH reactor and 84.0% for the acidic reactor) were observed, when molasses wastewater (COD 650 mg/L) was directly fed to the reactor because of higher concentration of biologically degradable organic matter in the feed solution. In spite of lower percentage of COD removal in the acidic reactor, higher percentage of color removal was observed spectrophotometrically with the low pH operation. Higher percentage of color removal in the acidic reactor was probably due to the enhanced adsorption of colored substances in the acidic environment followed by gradual biological degradation.

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Development of a treatment system for molasses wastewater: The effects of cation inhibition on the anaerobic degradation process

Cited by 45 publications

References 24 publications

High organic loading treatment for industrial molasses wastewater and microbial community shifts corresponding to system development

High organic loading treatment for industrial molasses wastewater and microbial community shifts corresponding to system development

Development of UASB-DHS System for Treating Industrial Wastewater Containing Ethylene Glycol

Removal of Color from Molasses Wastewater Using Membrane Bioreactor with Acidic Condition

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