甲烷

The reduction of trihalomethane formation potential was discussed, which indicated that ozonation has a good removal for chlorofom and bromodichloromethane formation potential, but for dibromochloromethane formation potential the removal efficiency was undesirable and there was almost no removal for bromoform forming potential, Furthermore, when there was enough bromide in water, ozonation would have a promotion effect for bromoform formation potential.

通过研究臭氧对三卤甲烷生成潜能的去除规律发现，臭氧对三氯甲烷和二氯一溴甲烷生成潜能都有很好的去除，对一氯二溴甲烷生成潜能的去除效果较差，对溴仿生成潜能基本没有去除。当水中溴化物含量较高时臭氧对溴仿的生成反而具有促进作用。

Methane chloridate , general name of monochloro methane , dichloro methane , trifluoro methane and tetra chloromethane mainly composed of natural gas and liquefied chlorine gas , can not only be used as solvent , degreasant , decolourant , aerosol , freezing medium and detoxicator , etc .but also the raw material for the production of medicine , pesticide , organic ailicon and organ fluorine , etc.

甲烷氯化物是包括一氯甲烷、二氯甲烷、三氯甲烷、四氯化碳四种产品的总称。甲烷氯化物除可作为溶剂、脱脂剂、漂白剂、氯雾剂、制冷剂、灭火剂、麻醉剂等以外，还是生产医药、农药、有机硅和有机氟系列产品等原料。

This paper introduces the basic theory to develop coalbed methane reservoir. It compares coalbed methane reservoir with conventional natural gas reservoir on geology and production characteristics, and explains the storage and migration mechanism in detail. And it also provides a set of new integrated mathematics, numerical model for the simulation of degasification process from coalbed seams. At last, it presents a significant computer software corresponding with the model.

为此，本文从煤层甲烷的开发基础入手，对煤层气藏与常规天然气藏储集特征和开采特征进行了综合对比分析研究；通过对煤层气藏的赋存、运移机理的深入研究，首次建立了一套完整的煤层甲烷运移的数学模型、数值模型，并研制开发了相应的计算机模拟模型，创造性地建立了一套煤层甲烷气藏开发动态评价和预测的理论和方法，对煤层气藏的开发具有重要的实际意义和重要的指导作用。

In this study,we analyze several calculation methods of the production rate of methane in rubbish and make a detailed calculation of the production rate and the cumulate output of methane. On the basis of this study,we use a real rubbish dumping field to calculate the production rate and the cumulate output of methane.

本文比较分析了几种常用的有关垃圾场甲烷气产率计算方法，并详细计算了甲烷的产率及累计产量，在此基础上用一个比较实际的垃圾填埋场计算垃圾填埋过程中甲烷气的产率情况及累计产量，为垃圾填埋场的沼气发电提供了可靠的资料。

In recent years, the demand growth rate of methane chloridate beyond the production growth rate in domestic market, there are more than 10 methyl chloride factories in our country, with the general production capability about 70 thousand tons, but the consumption is near about 80 thousand tons, the domestic market demand of monochloro methane reached 120—140 thousand tons in 2006, but the monochloro methane production capability just only 80-100 thousand tons.

近几年，国内市场对甲烷氯化物产品的需求增长速度大大快于生产增长的速度，我国现有氯甲烷生产厂10多家，总生产能力约7万吨，消费量近8万吨，到2006年国内对一氯甲烷的总需求量达到12-14万吨，而时国内一氯甲烷的生产能力8-10万吨。

Project Contents: Methane chloridate is a kind of chemical product including monochloro methane, dichloro methane, trifluoro methane, tetrachloromethane. It is an important chemical material and solvent.

建设内容：甲烷氯化物是一氯甲烷、二氯甲烷、三氯甲烷、四氯化碳四种甲烷氯化物的总称，是主要的化工原料和溶剂。

The raw material technology that manufactures methane chloride at present basically has methane to heat up chloridize law and law of methanol hydrogen chloridize two kinds, latter already took absolutely advantage, the whole world makes an appointment with the methane chloridize products of 15% only can be to be based on methane law, the others uses methanol method entirely.

目前生产甲烷氯化物的原料工艺主要有甲烷热氯化法和甲醇氢氯化法两种，后者已占绝对优势，全球只有约15%的甲烷氯化物产能是基于甲烷法，其余全部采用甲醇法。

A combination analysis of SIP and in situ microbiological methods was applied on the anaerobic digestion of biomass organics suffering from severe acids inhibition. The studies found that accumulated acids were degraded mainly by Methanosarcina firstly with acetoclastic pathway and then with hydrogenotrophic pathway under mesophilic condition, whereas acids were mainly degraded to methane by the tandem reactions of syntrophic acetate oxidation and hydrogenotrophic methanogenesis under thermophilic condition.

联合应用稳定同位素表征技术和微生态原位表征方法，对高浓度有机酸胁迫条件下的生物质类有机物厌氧发酵甲烷化途径的研究结果表明，面临高浓度有机酸迅速累积的环境，中温发酵条件下，优势菌种为甲烷八叠球菌，依时间次序，通过乙酸发酵和氢营养型途径利用累积的有机酸产生甲烷；而在高温条件下，有机酸则通过乙酸氧化和氢营养型甲烷化途径的串联反应被降解。

The catalytic combustion of methane and the methane reforming with carbon dioxides are two effective ways of make use of the methane.

甲烷催化燃烧和二氧化碳重整甲烷制合成气是利用甲烷的两条有效途径。由于甲烷的化学稳定性，两个反应都需要高温条件才能进行。

The results indicated: COD removal efficiency could remain at 70%, the product gas was mainly composed of methane, carbon dioxide and hydrogen, tile maximal methane producing activity sequentially were 211 mLCH4gVSS^(-1)d^(-1), 314 mLCH4gVSS^(-1)d^(-1), 319 mLCH4gVSS^(-1)d^(-1); The main components of effluent were acetic acid and propanoic acid; The dominant microorganisms sequentially were Bacillus, Coccus, Methanothrix and Methanosaet.

实验结果表明：COD的去除率可维持在70%左右，产气主要含有甲烷、二氧化碳和氢气，每格最大产甲烷活性依次为211 mLCH4gVSS^(-1)d^(-1)，314mLCH4gVSS^(-1)d^(-1)，319mLCH4gVSS^(-1)d^(-1)；出水产物为乙酸和丙酸；每格优势菌种依次为杆菌、球菌、甲烷丝状菌和甲烷八叠球菌。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。