Abstract：
:There is a global need for the implementation of more cost-effective green technologies for the treatment of effluent from wineries. However, systems reliant on microbial biodegradation may be adversely affected by the highly seasonal character of cellar waste. In this study, the biodegradation of two different formulations of winery effluent in sand bioreactors was compared. The degradation of organic substrates and formation of metabolites was monitored by physicochemical analyses of pore water and final effluent samples. Changes in the bacterial community structures were detected using molecular fingerprinting. In wastewater with an overall COD of 2027 mg/L, a formulation with a high concentration of acetate (800 mg COD/L) was more recalcitrant to degradation than a formulation with a high concentration of glucose (800 mg COD/L). Ethanol, glucose and phenolics were degraded preferentially in the deeper layers of the sand bioreactors (average Eh 25 mV) than in the superficial layers (average Eh 102 mV). The redox status also played a pivotal role on the bacterial community composition. The study yielded valuable insight that can be utilized in the design (configuration and operation) of full scale sand bioreactors.
journal_name
J Environ Managejournal_title
Journal of environmental managementauthors
Welz PJ,Palmer Z,Isaacs S,Kirby B,le Roes-Hill Mdoi
10.1016/j.jenvman.2014.06.025subject
Has Abstractpub_date
2014-12-01 00:00:00pages
147-56eissn
0301-4797issn
1095-8630pii
S0301-4797(14)00326-0journal_volume
145pub_type
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journal_title：Journal of environmental management
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journal_title：Journal of environmental management
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journal_title：Journal of environmental management
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journal_title：Journal of environmental management
pub_type： 杂志文章,评审
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abstract：:A potential and cost-effective treatment method utilizing thermally activated bentonite was evaluated for the treatment of highly loaded real petroleum processing wastewater (COD = 4500 mg/L) in order to reduce its COD and improve the corrosion properties. A save discharging COD limit of the treated effluent (800 mg/L...
journal_title：Journal of environmental management
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