共查询到16条相似文献,搜索用时 203 毫秒
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陈旋辉 《机电产品开发与创新》2012,(6):136-138
城市生活垃圾的主要成分是厨余垃圾,由于厨余垃圾为有机物,且含水量大,容易污染环境,传统的城市生活垃圾处理方式,污染较大,成本高,且造成资源浪费。论文介绍的厨余垃圾处理系统,利用可编程控制器系统对厨余垃圾采用就地高温高压水解,转化为有机肥,用于小区的绿化建设,该系统建于小区之中,可以让厨余垃圾在未腐烂变质前进行处理,避免污染和浪费,完美解决厨余垃圾处理难题。 相似文献
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《现代制造技术与装备》2020,(3)
介绍了50t/d餐厨+50t/d厨余垃圾预处理设备流水线的设计及应用,开始时,餐厨和厨余垃圾分别卸料,经过不同的处理方法,去除其中的杂质,保留有机质,最后汇总到一起,待需要时输入沼气反应器进行发酵反应,产生沼气,产生经济价值。 相似文献
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GC/MS内标法测定废水中的半挥发性有机污染物及其质量保证/质量控制 总被引:2,自引:0,他引:2
本文根据美国合同实验方案的有机分析工作说明其质量保证/质量控制要求,首次在国内用于废水中半挥发性有机污染物的内标定量分析,并以甘污水处理厂的二级处理排出水为实例,从中检出属于美国优先监测污染物的有16种,其中4种属于我国水环境优先监测污染物,含量在3.12-41.4ng之间,均在允许排放标准值之下,还有9种脂肪烃和糖、酸类和尝试性化合物含量在1.30-39.9ng之间,无三致毒性。采用此技术可提高 相似文献
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Nibbering NM 《Mass spectrometry reviews》2006,25(6):962-1017
Tremendous developments in mass spectrometry have taken place in the last 40 years. This holds for both the science and the instrumental revolutions in this field. In chemistry the research was heavily focused on organic molecules that upon electron ionization fragmented via complex mechanistic pathways as shown by isotopic labeling experiments. These studies, including ion structure determinations, were performed with use of double focusing mass spectrometers of both conventional and reversed geometry, and equipped with various types of metastable ion scanning and collision-induced dissociation techniques developed by physical and analytical chemists. Time-resolved mass spectrometry by use of the field ionization kinetics method, developed by physical chemists, was another powerful way to unravel details of unimolecular gas phase ion dissociations. Then the development of new ionization methods, such as desorption chemical ionization, field desorption, and fast atom bombardment permitted not only to analyze unvolatile, thermally labile and higher molecular weight compounds, but also to study their chemical behavior in the gas phase, initially with use of double focusing instruments and later on with multisector and hybrid mass spectrometers. These ionization methods also enabled to study organometallic compounds and increasingly the field of medium-sized to large biomolecules, the latter being exploded in the last decade by the development of electrospray- and matrix-assisted laser desorption ionization/time-of-flight mass spectrometry. Another area of research concerned the bimolecular chemistry of organic ions with organic molecules in the gas phase. Initially this was performed with use of among others drift-cell ion cyclotron resonance spectroscopy, that later on was replaced by the developed method of ion trapping and Fourier transform ion cyclotron resonance. Combination of the latter with the afore-mentioned ionization methods has shifted also in this case the research on organic molecules to organometallic/inorganic systems, and predominantly to biomolecules in the last decade. This invited review will describe the research efforts made by the author's group over the last 40 years together with some personal experiences during his career. 相似文献