期刊
BIORESOURCE TECHNOLOGY
卷 241, 期 -, 页码 1067-1076出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.06.046
关键词
Bioreactors; Landfill leachate; Recalcitrant compound removal; Wastewater treatment; White-rot fungi
资金
- Carbala Project [PIRSES-GA-2011-295176]
Conventional wastewater treatment technologies are ineffective for remediation of old LandFill Leachate (LFL), and innovative approaches to achieve satisfactory removal of this recalcitrant fraction are needed. This study focused on old LFL treatment with a selected fungal strain, Bjerkandera adusta MUT 2295, through batch and continuous tests, using packed-bed bioreactors under non-sterile conditions. To optimize the process performance, diverse types of co-substrates were used, including milled cellulose from beverage cups waste material. Extracellular enzyme production was assayed, in batch tests, as a function of a) cellulose concentration, b) leachate initial Chemical Oxygen Demand (COD) and Soluble COD (sCOD), and c) co-substrate type. Bioreactors were dosed with an initial start-up of glucose (Rg) or cellulose (Rc). An additional glucose dosage was provided in both reactors, leading to significant performance increases. The highest COD and sCOD removals were i) 63% and 53% in Rg and ii) 54% and 51% in Rc. (C) 2017 Elsevier Ltd. All rights reserved.
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