Microbial conversion of wastewater from butanol fermentation to microbial oil by oleaginous yeast Trichosporon dermatis

Peng, Wanfeng; Huang, Chao; Chen, Xue-fang; Xiong, Lian; Chen, Xinde; Chen, Yong; Ma, Longlong

doi:10.1016/j.renene.2012.12.017

Cited by 66 publications

(47 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cultivation was performed in a 250-mL conical flask containing 50-mL fermentation broth in a rotary shaker at 28°C and 150 rpm. To compare with the lipid fermentation with other two yeasts also belonging to genus Trichosporon (T. dermatis and T. coremiiforme), the above fermentation conditions including inoculum concentration, temperature, and initial pH value were the same as our previous studies [4,5].…”

Section: Microorganism and Microbial Oil Production On Wastewatermentioning

confidence: 99%

“…Usually, these products (butanol, acetone, and ethanol) could be easily recovered by distillation. However, the residual sugars and some kinds of organic acids (the by-products of ABE fermentation) could not be removed by distillation, and thus, certain wastewater so called ABE fermentation wastewater with high COD value was produced after above process [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, oleaginous yeast was shown as one promising alternative for wastewaters treatment due to its simple fermentation technology and common equipment [8]. Our previous studies showed that oleaginous yeasts Trichosporon dermatis and Trichosporon coremiiforme are both potential microorganisms which can treat the ABE fermentation wastewater efficiency [4,5].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Acetone-Butanol-Ethanol (ABE) Fermentation Wastewater Treatment by Oleaginous Yeast Trichosporon cutaneum

Xiong

Huang

et al. 2015

Appl Biochem Biotechnol

Self Cite

View full text Add to dashboard Cite

In the present study, acetone-butanol-ethanol (ABE) fermentation wastewater with high chemical oxygen demand (COD) value (about 18,000 mg/L) was biologically treated by oleaginous yeast Trichosporon cutaneum without any pretreatment. During fermentation, most COD degradation was finished within 48 h and finally, a maximum COD degradation of 68% was obtained. The highest biomass and lipid content was 4.9 g/L and 14.7%, respectively. Various materials including sugars (glucose and xylose), organic acids (acetic acid and butyric acid), and alcohol compounds (ethanol and butanol) could be utilized as carbon sources by T. cutaneum simultaneously; thus, it has a broad carbon source spectrum and is a potential microorganism for biological treatment for various wastewaters. Overall, the lipid composition of microbial oils produced by this bioconversion is similar to that of vegetable oils, and thus, it could be used for biodiesel production.

show abstract

Section: Microorganism and Microbial Oil Production On Wastewatermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Acetone-Butanol-Ethanol (ABE) Fermentation Wastewater Treatment by Oleaginous Yeast Trichosporon cutaneum

Xiong

Huang

et al. 2015

Appl Biochem Biotechnol

Self Cite

View full text Add to dashboard Cite

show abstract

“…The yeast isolatefinally achieved 91e95% COD removals and gave consistently higher biomass yields than C. utilis, producing a maximum of w9 g,L À1 [10]. Furthermore, wastewaters from various fermentation processes, e.g., pharmaceutical, alcoholic [30], butanol [31], vitamin, glutamate [6] industry, etc., also contained sugar residues as the main COD constituent. An isolated yeast, identified as Pichia anomala, achieved maximum COD reduction (81%) from ergot alkaloid production wastewater [18].…”

Section: 1mentioning

confidence: 97%

Pollutant removal-oriented yeast biomass production from high-organic-strength industrial wastewater: A review

Yang

Zheng

2014

Biomass and Bioenergy

View full text Add to dashboard Cite

t r a c tMicrobial single-cell-protein (SCP) production from high-organic-strength industrial wastewaters is considered an attractive method for both wastewater purification and resource utilization. In the last two decades, pollutant removal-oriented yeast SCP production processes, i.e., yeast treatment processes, have attracted a great deal of attention from a variety of research groups worldwide. Different from conventional SCP production processes, yeast treatment processes are characterized by higher pollutant removal rates, lower production costs, highly adaptive yeast isolates from nature, no excess nutrient supplements, and are performed under non-sterile conditions. Furthermore, yeast treatment processes are similar to bacteria-dominated conventional activated sludge processes, which offer more choices for yeast SCP production and industrial wastewater treatment.This review discusses why highly adaptive yeast species isolated from nature are used in the yeast treatment process rather than commercial SCP producers. It also describes the application of yeast treatment processes for treating high-carboxyhydrate, oil-rich and high-salinity industrial wastewater, focusing primarily on high-strength biodegradable organic substances, which usually account for the major fraction of biochemical oxygen demand. Also discussed is the biodegradation of xenobiotics, such as color (including dye and pigment) and toxic substances (including phenols, chlorophenols, polycyclic aromatic hydrocarbons, etc.), present in industrial wastewater. Based on molecular information of yeast community structures and their regulation in yeast treatment systems, we also discuss how to maintain efficient yeast species in yeast biomass and how to control bacterial and mold proliferation in yeast treatment systems.ª 2014 Elsevier Ltd. All rights reserved. IntroductionYeasts are a group of unicellular fungi widely distributed in nature, most of which belong to two separate phyla: the Ascomycota and the Basidiomycota. Yeasts have played * Corresponding author. Tel.: þ86 10 58809266. E-mail address: zsk@bnu.edu.cn (S. Zheng).Available online at www.sciencedirect.com ScienceDirect ht tp://www.elsevier.com/locate/biombioe b i o m a s s a n d b i o e n e r g y 6 4 ( 2 0 1 4 ) 3 5 6 e3 6 2 http://dx

show abstract

“…The two strains of this experiment were also used in wastewater treatment, malodorous treatment and bioremediation. Trichosporon dermatis, fermented hydrolysate waste liquid yeast, were used in sewage treatment [13,14] . Ochrobactrum intermedium, which belongs to the same genus as Ochrobactrum anthropi, the surfactants it produced can be used to repair sludge in refinery wastewater tank [15] .…”

Section: Strain Identificationmentioning

confidence: 99%

Research on Simultaneous Removal of Cyclohexane and Methyl Acetate in Biotrickling Filters

Zhanga¹,

Denga²,

Qina³

et al. 2018

International Conference of Recent Trends in Environmental Science and Engineering

View full text Add to dashboard Cite

-In order to further purify two kinds of organic waste gases, methyl acetate and cyclohexane, which were difficult to be biodegraded in refinery wastewater treatment process, a new scheme for purifying mixed waste gas by bio-film construction with dominant bacteria was put forward. Because of the packing has a great influence on the performance of the bio-trickling filter (BTF) for purifying exhaust gas, the effect of two kinds of packing, namely ceramsite and volcanic rock, on cyclohexane purification was investigated. The results indicated that the filter efficiencies with two different packing were equivalent under the same conditions, but ceramsite was finally chosen as the next experimental packing because of its low weight. With activated sludge in secondary sedimentation tank from wastewater treatment plant as the original strain, the dominant degrading bacteria of methyl acetate and cyclohexane were obtained. After initial identification, a vertical BTF was startup with membrane of the dominant cyclohexane degradation bacteria Ochrobactrum intermedium. The tower can be startup quickly in 10 days, and the removal efficiency can reach over 95%. Moreover, the maximum eliminate capacity of cyclohexane was achieve 58.59 g·m -3 ·h -1 . When the reactor entered in stable phase, two kinds of methyl acetate predominant degrading bacteria, Bacillus velezensis and Ochrobactrum anthropi, were added and the methyl acetate gas was injected into the BTF. The performance of purify the mixture of cyclohexane and methyl acetate in the BTF was investigated in different operating conditions. The results showed that when the empty bed residence time was 176.6 s and 83.3 s, for cyclohexane concentration in the inlet air ranging from 50 mg·m -3 to 300 mg·m -3 , the removal efficiency was above 90%. Meanwhile, for methyl acetate concentration ranging from 300 mg·m -3 to 800 mg·m -3 , the removal efficiency was achieve 100%. The maximum eliminate capacity of the two kinds of pollutions was attain 72.99 g·m-3·h-1. In addition, the BTF was strongly resistant to impact load, and the pressure drop was remained at 5~100 pa over the entire operation time, no blockage appeared in the tower.

show abstract

Microbial conversion of wastewater from butanol fermentation to microbial oil by oleaginous yeast Trichosporon dermatis

Cited by 66 publications

References 19 publications

Acetone-Butanol-Ethanol (ABE) Fermentation Wastewater Treatment by Oleaginous Yeast Trichosporon cutaneum

Acetone-Butanol-Ethanol (ABE) Fermentation Wastewater Treatment by Oleaginous Yeast Trichosporon cutaneum

Pollutant removal-oriented yeast biomass production from high-organic-strength industrial wastewater: A review

Research on Simultaneous Removal of Cyclohexane and Methyl Acetate in Biotrickling Filters

Contact Info

Product

Resources

About