Journal ArticleDOI
Treatment of carbofuran-bearing synthetic wastewater using UASB process.
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TLDR
The toxic effect of carbofuran was reversible to a certain extent and the reactor efficiency was also measured in terms of specific acetoclastic methanogenic activity (SMA).Abstract:
In the present study, fate of carbofuran in anaerobic environments and the adverse effects of carbofuran on conventional anaerobic systems were evaluated. Carbofuran degradation studies were carried out in batch reactors with varying carbofuran concentrations of 0 to 270.73 mg/L corresponding to a sludge-loading rate (SLR) of 2.12 × 10− 6 to 3.83 × 10− 3 g of carbofuran/g of volatile suspended solids (VSS)/d. Carbofuran concentration was reduced to undetectable levels at the end of 8 and 13 days in the batch reactors operated with a SLR of 2.12 × 10− 6 and 3.33 × 10− 5 g of carbofuran/g of VSS/d, respectively. Performances of two anaerobic reactors i.e. upflow anaerobic sludge blanket (UASB) and modified UASB (with tube settlers) were evaluated in the presence and absence of carbofuran using synthetic wastewater. In the absence of carbofuran, the soluble chemical oxygen demand (COD) removal efficiency in the conventional UASB reactor at 8 h and 6 h hydraulic retention time (HRT) was nearly 88% and 76%, re...read more
Citations
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Journal ArticleDOI
A microbial consortium from a biomixture swiftly degrades high concentrations of carbofuran in fluidized-bed reactors
Víctor Castro-Gutiérrez,Mario Masís-Mora,Gloria Caminal,Teresa Vicent,Elizabeth Carazo-Rojas,Marielos Mora-López,Carlos E. Rodríguez-Rodríguez,Carlos E. Rodríguez-Rodríguez +7 more
TL;DR: The use of this consortium for the treatment of CBF and other carbamates at reactor scale represents a potential approach for the removal of these pesticides from agricultural wastewater, as an alternative to BPS.
Journal ArticleDOI
Carbofuran removal in continuous-photocatalytic reactor: Reactor optimization, rate-constant determination and carbofuran degradation pathway analysis.
TL;DR: The reactor system and GAC-TiO2 catalyst used could be constructive in cost-effective CBF removal with no impact to receiving environment through getaway of photocatalyst.
Journal ArticleDOI
Screening of Carbofuran-Degrading Bacteria Chryseobacterium sp. BSC2-3 and Unveiling the Change in Metabolome during Carbofuran Degradation
Joo-Hyun Seo,Wang Min +1 more
TL;DR: In this article , the intracellular and extracellular metabolites of the Chryseobacterium sp. BSC2-3 strain were analyzed during carbofuran degradation by using a liquid chromatography-mass spectrometry-based metabolomics approach.
Journal ArticleDOI
Carbofuran pesticide toxicity to the eye.
TL;DR: In this article , a review describes carbofuran toxicity to the eye with special emphasis on corneal morbidities and blindness, and reported alteration of autophagy mechanism in human cornea in vitro and ex vivo post carbofuranium exposure.
References
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Journal ArticleDOI
Relative persistence of hexachlorocyclohexane, methyl parathion and carbofuran in an alluvial soil under flooded and non-flooded conditions
TL;DR: In this paper, the relative persistence of hexachlorocyclohexane (γ-HCH, organochlorine), methyl parathion (O-O-dimethyl O-p-nitrophenyl phosphorothioate, organophosphate) and carbofuran (2,3-dihydro-2,2-dimdimethyl-7-benzofuranyl N-methyl carbamate, carbamate) in an alluvial soil was studied under flooded and non-flooded conditions.
Journal ArticleDOI
Acute Toxicity of Carbofuran to Adult and Juvenile Flathead Chubs
TL;DR: Research has indicated that portions of the Missouri River watershed in the western Dakotas are maintaining good populations of flathead chubs, however, potentially deleterious agricultural practices in these areas during the past two decades have included increases in insecticide coverage (Facemire 1993).
Journal Article
Anearobic biotechnology for the treatment of wastewaters: a review
L. Iyengar,C. Venkobachar +1 more
Journal ArticleDOI
Tetrachloroethylene (TCE) removal during anaerobic granulation in an upflow anaerobic sludge blanket (UASB) reactor.
TL;DR: The anaerobic biotransformation of TCE was investigated during the granulation process by reducing the HRT and increasing the chemical oxygen demand (COD) and TCE loadings in a 2 l laboratory-scale upflow an aerobic sludge blanket (UASB) reactor.
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