Electrolytic deodorization of hog manure

集约化养猪场产生的难闻气味越来越受到公众的关注。特别是，土地处理产生的粪便有很大的潜力释放有气味的还原氮和硫化合物到大气中。这些化合物是在哺乳动物的肠道和液体粪池中形成的，两者都是缺氧环境，厌氧细菌通过还原氧化的有机化合物而茁壮成长。虽然恶臭化合物可以被氧化为不那么刺鼻的物质，但由于细菌负荷和生物需氧量高，用空气净化液粪池不足以达到和维持充氧条件。我们之前已经在实验室规模上证明了“概念证明”，猪粪的气味可以通过电解（电流通过）来减轻。拟议研究的目的是建立一个具有以下目标的试验工厂。1. 利用电解对气味化合物的化学攻击和电流的杀菌作用（一种称为电穿孔的现象）相结合来减轻猪粪的难闻气味。研究不同的阳极材料，以达到节能、耐用、长寿命和成本的最佳性能。

Offensive odors from intensive hog operations are the subject of increasingly adverse public attention.  In particular, land disposal produces a fine spray of manure with great potential for release of odorous reduced nitrogen and sulfur compounds to the atmosphere.  These compounds are formed in the mammalian gut and the liquid manure tank, both of which are anoxic environments where anaerobic bacteria thrive by reducing oxidized organic compounds.  Although the odor compounds can be oxidized to less pungent substances, purging the liquid manure tank with air is insufficient to achieve and maintain oxygenated conditions because of the high bacterial load and biological oxygen demand.  We have previously demonstrated "proof of concept" at the laboratory scale that the odor of hog manure can be mitigated by electrolysis (passage of an electric current). The purpose of the proposed research is to develop a pilot plant with the following objectives.  1. Use of electrolysis to mitigate the offensive odour of hog manure by a combination of chemical attack on the odour compounds and the bactericidal action of an electric current (a phenomenon known as electroporation)  2. Study of different anode materials to achieve optimum properties of energy efficiency, ruggedness, long life, and cost.