Feasibility of anaerobic co-digestion of pig waste and paper sludge

被引：54

作者：

Parameswaran, Prathap ^{[1
]}

Rittmann, Bruce E. ^{[1
]}

机构：

[1] Arizona State Univ, Biodesign Inst, Swette Ctr Environm Biotechnol, Tempe, AZ 85287 USA

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 124卷

关键词：

Methanogenesis; Pig waste; Paper sludge; Co-digestion; Hydrolysis; MANURE; AMMONIA; MODEL;

D O I：

10.1016/j.biortech.2012.07.116

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Pig waste (PW) and paper sludge (PS) possess complementary properties that can be combined for successful anaerobic digestion. Biochemical methane potential (BMP) tests revealed that a PW:PS 3:1 (v/v) ratio had the highest normalized CH4-COD removal (54%), while PS had the lowest value (11%) and PW had 44%. Batch BMP tests revealed a significant decrease in lag times for methane production in the order of PW:PS 1:3 (14 days) < PW:PS 1:1 (17 days) < PW:PS 3:1(20 days) < PW (23 days). Hydrolysis constants (k(hyd)) were higher for all PW:PS combinations than for either of the individual waste streams: 0.004 d(-1) (PS) < 0.02 d(-1) (PW) < 0.024 d(-1) (PW:PS 3:1) < 0.03 d(-1) (PW:PS 1:1) <0.05 d(-1) (PW:PS 1:3). Semi-continuous reactors performing co-digestion of PW and PS at a 2:1 ratio showed 1.5 times higher methane production than baseline PW-only reactors, confirming the BMP results. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：163 / 168

页数：6

共 34 条

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