Air stripping of ammonia from pig slurry:: characterisation and feasibility as a pre- or post-treatment to mesophilic anaerobic digestion

被引：342

作者：

Bonmatí, A ^{[1
]}

Flotats, X ^{[1
]}

机构：

[1] Univ Lleida, Dept Soil & Environm Sci, Lab Environm Engn, E-25198 Lleida, Spain

来源：

WASTE MANAGEMENT | 2003年 / 23卷 / 03期

关键词：

D O I：

10.1016/S0956-053X(02)00144-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The objective of the present paper has been to study the effect of pig slurry waste type, fresh or anaerobically digested,. and the effect of initial pH on ammonia air stripping from pig slurry waste at high temperature (80 degreesC). Stripping process as pre- or post-treatment to anaerobic digestion has been also evaluated. Treatment performances differ according to pig slurry type. When fresh pig slurry is used, despite working at 80 degreesC, a high initial pH (11.5) is required for complete ammonia removal. On the other hand, for digested pig slurry, complete ammonia removal without pH modification is possible and organic matter significantly less contaminates recovered ammonia salt. Batch anaerobic tests showed that ammonia air stripping is not an advisable pre-treatment to pig slurry anaerobic digestion. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：261 / 272

页数：12

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