Pesticide removal by a mixed culture of bacteria and white-rot fungi

Hai, Faisal I.; Modin, Oskar; Yamamoto, Kazuo; Fukushi, Kensuke; Nakajima, Fumiyuki; Nghiem, Long D.

doi:10.1016/j.jtice.2011.11.002

Cited by 113 publications

(46 citation statements)

References 14 publications

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“…This observation points to a synergistic effect achievable by combining a mixed culture of bacteria and white-rot fungus. Our observation is in line with another study where enhanced removal of three pesticides from their mixture was demonstrated by a mixed culture of bacteria and white-rot fungus as compared to bacteria or white-rot fungus -only cultures (Hai et al, 2012a …”

Section: [Figure 2]supporting

confidence: 92%

Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi

Nguyen

Hai

Yang

et al. 2013

Bioresource Technology

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117

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Nghiem, L. D. (2013). Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi. Bioresource Technology, 148 (November), 234-241. Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi AbstractThe degradation of 30 trace organic contaminants (TrOC) by a white-rot fungus-augmented membrane bioreactor (MBR) was investigated. The results show that white-rot fungal enzyme (laccase), coupled with a redox mediator (1-hydroxy benzotriazole, HBT), could degrade TrOC that are resistant to bacterial degradation (e.g. diclofenac, triclosan, naproxen and atrazine) but achieved low removal of compounds (e.g. ibuprofen, gemfibrozil and amitriptyline) that are well removed by conventional activated sludge treatment. Overall, the fungus-augmented MBR showed better TrOC removal compared to a system containing conventional activated sludge. The major role of biodegradation in removal by the MBR was noted. Continuous mediator dosing to MBR may potentially enhance its performance, although not as effectively as for mediator-enhanced batch laccase systems. A ToxScreen3 assay revealed no significant increase in the toxicity of the effluent during MBR treatment of the synthetic wastewater comprising TrOC, confirming that no toxic by-products were produced. 2013 Elsevier Ltd. Abstract:The degradation of 30 trace organic contaminants (TrOC) by a white-rot fungus-augmented membrane bioreactor (MBR) was investigated. The results show that white-rot fungal enzyme (laccase), coupled with a redox mediator (1-hydroxy benzotriazol, HBT), could degrade TrOC that are resistant to bacterial degradation (e.g. diclofenac, triclosan, naproxen and atrazine) but achieved low removal of compounds (e.g. ibuprofen, gemifibrozil and amitriptyline) that are well removed by conventional activated sludge treatment. Overall, the fungus-augmented MBR showed better TrOC removal compared to a system containing conventional activated sludge.The major role of biodegradation in removal by the MBR was noted. Continuous mediator dosing to MBR may potentially enhance its performance, although not as effectively as for mediator-enhanced batch laccase systems. A ToxScreen3 assay revealed no significant increase in the toxicity of the effluent during MBR treatment of the synthetic wastewater comprising TrOC, confirming that no toxic by-products were produced.

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Section: [Figure 2]supporting

confidence: 92%

Removal of trace organic contaminants by an MBR comprising a mixed culture of bacteria and white-rot fungi

Nguyen

Hai

Yang

et al. 2013

Bioresource Technology

Self Cite

117

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“…Probably for that reason (it is a common herbicide for sunflowers), only a few researches can be found in the articles of northern developed countries and in the literature. Also it can be seen in the literature that a few studies have explored the combination of fungi and bacteria to remove pesticide from the aqueous phase [12]. For that reason, our study has an importance to complete the information in the literature.…”

Section: Journal Of Chemistrymentioning

confidence: 98%

“…It was reported that the mineralization of some pesticides was mainly due to fungal activity. However, pesticides were not degraded when fungi or bacteria were separately inhibited [12].…”

Section: Witnessmentioning

confidence: 99%

“…Results of our experiments show the importance of fungus-bacteria mixed cultures. Hai et al [12] found that physical adsorption or uptake by the biomass without biochemical degradation of the pesticides appears to be a major removal mechanism by the fungus-only cultures. However, for the fungus-bacteria mixed cultures, biochemical degradation and physical adsorption/uptake both appear to have played roles in removing pesticides from the liquid phase.…”

Section: Witnessmentioning

confidence: 99%

See 1 more Smart Citation

Monitoring Aclonifen Remediation in Soil with a Laboratory-Scale Research

Ergüven¹,

Bayhan²,

Demir³

et al. 2016

Journal of Chemistry

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Aclonifen was used as the most preferable type of herbicide which is used in sunflower farming in the Thrace Region. Bacteria and fungi were isolated from the soil samples taken from the Thrace Region, and a mixed culture was prepared from equal volumes (10 8 CFU/mL) of liquid cultures of microorganisms. Including the witness sample, five different setups were prepared, to which Aclonifen, with a concentration of 1900 g/L, was added. Each unit was diluted with distilled water for six weeks. The water filtered at this stage was measured for chemical oxygen demand (COD), biochemical oxygen demand, total organic carbon (TOC), and Aclonifen. Additionally, pH and dissolved oxygen measurement was performed. According to the results of the study, the highest bioremediation was observed in the soil sample to which 10 mL of mixed culture of microorganisms was added and Aclonifen, COD, BOD 5 , and TOC remediation was observed as 93.2%, 97.8%, 98.8%, and 98.7%, respectively.

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“…Mixed cultures of bacteria and WRF have been found to remove TrOCs from wastewater via biodegradation and biosorption [158,159]. There is also evidence that WRF can eliminate TrOCs from biosolids.…”

Section: Bioaugmentationmentioning

confidence: 99%