Effect of alternating anaerobic and aerobic phases on the performance of a SBR treating effluents with high salinity and phenols concentration

被引：20
作者：
Ferrer-Polonio, E. [1 ]
Garcia-Quijano, N. T. [1 ]
Mendoza-Roca, J. A. [1 ]
Iborra-Clar, A. [1 ]
Pastor-Alcaniz, L. [2 ]
机构：
[1] Univ Politecn Valencia, Inst Seguridad Ind Radiofis & Medioambiental, Camino Vera S-N, E-46022 Valencia, Spain
[2] Depurac Aguas Mediterraneo, Avda Benjamin Franklin 21,Parque Tecnol, Paterna 46980, Spain
来源：
BIOCHEMICAL ENGINEERING JOURNAL | 2016年 / 113卷
关键词：
Biological wastewater treatment; SBR; Phenolic compounds; Hypersaline wastewater; Anaerobic/aerobic phases; ACTIVATED-SLUDGE PROCESS; OXYGEN-UPTAKE RATE; WASTE-WATER; BIOLOGICAL TREATMENT; OLIVE; BIODEGRADATION; DEGRADATION; REMOVAL; OPTIMIZATION; WASTEWATERS;
D O I：
10.1016/j.bej.2016.05.010
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The biological treatment of hypersaline wastewaters with high COD and phenols concentration requires long hydraulic retention times and much energy for aeration. In this work aeration time reduction in the reaction phase was studied in two sequential batch reactors (SBR) treating fermentation brine from table olive processing wastewater. To study the influence of an anaerobic phase on the SBR performance (for COD and phenolic compound removal efficiencies), different anaerobic/aerobic reaction times were evaluated. SBR-1 was operated with an anaerobic/aerobic hours ratio of 0/22, 8/14 and 14/8 and SBR-2 with a ratio of 22/0, 14/8 and 8/14. Results showed that the maximum organic matter reduction was obtained under aerobic reaction conditions (ratio 0/22) with a 82.3% and 77.9% of COD and total phenols removal, respectively. However, optimal conditions were considered to prevail for an anaerobic/aerobic ratio of 8/14, since the reactors performances were similar with lower energy consumption. Thus, 82.3% and 79.5% of COD and 77.9% and 78.3% of total phenols were removed in SBR-1 and SBR-2, respectively. (C) 2016 Elsevier B.V. All rights reserved.
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页码：57 / 65
页数：9
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