使用氮素添加剂控制猪粪堆肥过程中二甲硫和二甲基二硫的气味。
Control of dimethyl sulfide and dimethyl disulfide odors during pig manure composting using nitrogen amendment.
机构信息
College of Resource and Environmental Science, China Agricultural University, Beijing 100193, PR China; Department of Food, Agricultural and Biological Engineering, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691, USA.
College of Resource and Environmental Science, China Agricultural University, Beijing 100193, PR China.
出版信息
Bioresour Technol. 2017 Jan;224:419-427. doi: 10.1016/j.biortech.2016.11.023. Epub 2016 Nov 9.
Effects of nitrogen electron acceptors on dimethyl sulfide (MeS) and dimethyl disulfide (MeSS) odor emission during composting was investigated. The chemicals and doses used included sodium nitrate (NO at 10mM, 20mM and 40mM), sodium nitrite (NO at 10mM, 20mM and 40mM) and sodium nitrite (10mM, 20mM and 40mM) with hexaammonium heptamolybdate tetrahydrate (HHT). The results showed that the addition of these chemicals restricted the emission of MeS and MeSS. The emission reduction effect of NO was greater than NO at the same dosage. A greater reduction was observed when HHT was also added. With 2mM HHT+40mM NO addition, the emission of MeS and MeSS was reduced by 92.3% and 82.3%, respectively. Comparison of compost maturity indices for treated and untreated composts indicated that none of the additives adversely affected compost quality. These results indicate that nitrogen chemical addition may provide an efficient method to control sulfur odors during composting.
研究了氮电子受体对堆肥过程中二甲基硫（MeS）和二甲基二硫（MeSS）气味排放的影响。所用的化学品和剂量包括硝酸钠（NO 分别为 10mM、20mM 和 40mM）、亚硝酸钠（NO 分别为 10mM、20mM 和 40mM）和六水合钼酸铵四水合物（HHT）。结果表明，这些化学品的添加限制了 MeS 和 MeSS 的排放。相同剂量下，NO 的减排效果大于 NO。当添加 HHT 时，观察到更大的减少。添加 2mM HHT+40mM NO 时，MeS 和 MeSS 的排放量分别减少了 92.3%和 82.3%。处理和未处理堆肥的堆肥成熟度指数比较表明，添加剂均未对堆肥质量产生不利影响。这些结果表明，氮化学添加可能为控制堆肥过程中的硫气味提供一种有效方法。
Zotero 插件