Anaerobic digestion of municipal sewage under psychrophilic conditions

被引：29

作者：

Serrano Leon, Esteban ^{[1
,2
]}

Perales Vargas-Machuca, Jose Antonio ^{[2
]}

Lara Corona, Enrique ^{[1
]}

Arbib, Zouhayr ^{[1
]}

Rogalla, Frank ^{[1
]}

Fernandez Boizan, Maikel ^{[1
]}

机构：

[1] EDAR El Torno, FCC Aqualia, C Poligono Ind El Torno S-N, Cadiz, Spain

[2] Univ Cadiz, Dept Tecnol Medio Ambiente, Ctr Andaluz Ciencia & Tecnol Marinas CACYTMAR, Campus Univ Poligono Rio San Pedro, Cadiz, Spain

来源：

JOURNAL OF CLEANER PRODUCTION | 2018年 / 198卷

关键词：

Anaerobic digestion; Biogas; COD balance; Psychrophilic temperature; Pulsed feeding system; Sewage; WASTE-WATER TREATMENT; OF-THE-ART; UASB REACTOR; LOW-TEMPERATURES; SLUDGE TREATMENT; GRANULAR SLUDGE; FILTER REACTOR; PERFORMANCE; HYBRID;

D O I：

10.1016/j.jclepro.2018.07.060

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The anaerobic digestion of municipal sewage was studied at psychrophilic temperatures (19 degrees C and 17 degrees C) in three up-flow anaerobic sludge bed reactors (UASB). A pulsed feeding system was operated for 430 d, during which different hydraulic retention time (HRT) (6, 8, 10, 12, 14, 18, 24 and 36 h) were tested. Granulation of the sludge was observed under the pulsed feeding strategy and a 6 h HRT. Low hydrolysis rates were obtained at HRTs lower than 10 h, as a result of an increased solids accumulation inside the reactor. An HRT of 14 h was identified as the most suitable HRT under the studied temperatures (19 degrees C and 17 degrees C), with methane yields of 136 and 117 mL CH4/g of removed chemical oxygen demand (CODremoved), respectively. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：931 / 939

页数：9

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