Electrolytic deodorization of hog manure

来自密集养猪场的难闻气味越来越受到公众的关注。 特别是，土地处理产生了一个很好的粪肥喷雾，有很大的潜力释放到大气中的气味减少氮和硫化合物。 这些化合物在哺乳动物肠道和液体粪肥罐中形成，这两者都是厌氧细菌通过还原氧化的有机化合物而茁壮成长的缺氧环境。 尽管气味化合物可以被氧化成不太刺激的物质，但是由于高的细菌负荷和生物需氧量，用空气吹扫液体粪肥罐不足以实现和维持充氧条件。 我们之前已经在实验室规模上证明了“概念验证”，即可以通过电解（通过电流）减轻猪粪的气味。拟议研究的目的是开发具有以下目标的中试工厂。 1.使用电解通过对气味化合物的化学攻击和电流的杀菌作用（称为电穿孔的现象）的组合来减轻猪粪的难闻气味2。研究不同的阳极材料，以实现能源效率，耐用性，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.