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个人信息
姓 名: 张译员  [编号]:2525 性 别: 女 
擅长专业: 环保 出生年月: 1981/1/1
民 族: 汉族 所在地区: 河北 石家庄
文化程度: 硕士 所学专业: 英语语言文学
毕业时间: 2007 毕业学校: 西南科技大学
第一外语: 英语 等级水平: 专业8级
口译等级: 中级 工作经历: 3 年
翻译库信息
可翻译语种: 英语
目前所在地: 河北 石家庄
可提供服务类型: 笔译
每周可提供服务时间: 随时
证书信息
证书名称: 高等学校英语专业考试TEM
获证时间: 2004/3/1
获得分数: 良好
工作经历
工作时期: 2007/7/1--2009/9/1
公司名称: 德国帕萨旺—洛蒂格环保公司
公司性质: 外商独资
所属行业: 其他
所在部门: 项目运行部
职位: 翻译
自我评价: 踏实负责上进自学能熟练应用Trados软件
笔译案例信息
案例标题: Basic Principles of Digestion Process
原文: The intensive anaerobic alkaline sludge digestion process is the optimal method to translate raw sludge produced in the WWTP to harmless (stabilised) matters. In the process, the organic part of the dry matters in the raw sludge decomposes into harmless metabolic end products, i.e. digested gas and water. The process relies on the microbial enzymes’ function (the so-called anaerobics) under exclusion of light and air or oxygen (the so-called anaerobic conditions) at a constant temperature. Organic matters decompose in the following four phases: The first two phases (the hydrolysis and acidic digestion phases) is the preliminary decomposition of organic matters, wherein part of anaerobic bacteria decomposes the large molecules of the metabolic products. Stimulated by enzymes, the anaerobic bacteria degrade compounds of the organic matters and remove from them carbonic and oxygenic components, wherein alcohol, organic acids, hydrogen sulphide, hydrogen, carbon dioxide and some methane are produced. Almost the water solution of each produced material is acid. Thus, the phase is called the acidic sludge digestion process. After that process, the sludge is not completely digested, slimy, grey, and highly pungent. In the third phase, acetates form acetic acid, hydrogen and carbon dioxide. The most important bacteria group in the fourth phase is known as methane bacteria because methane is its most important end product. These bacteria can degrade organic matters into molecules of the smallest form, wherein ammonia, carbon dioxide and methane are created. The latter two escape as gases; ammonia combines with water and becomes ammonium hydroxide, main origin of base. The process is “methane digestion“or alkaline sludge digestion process and produces completely digested, black and almost odourless sludge. If the sludge digestion process functions well, the alkaline phase dominates the acidic one, because the anaerobics in the second phase can produce oxygen that their metabolism needs by splitting the carbon dioxide accumulated in the acidic phase and converting the released carbon and hydrogen into methane. Since the intensive sludge digestion process generally produces a substantial amount of digestion gas and the energy it contains is sufficient to meet the process requirements, so no additional energy is needed. - heat the raw sludge up to the temperature inside the digester, - compensate for the heat loss in radiation (heat loss in transmission), - produce mechanical energy needed to operate circulation devices and sludge pumps, - heat the building. The raw sludge daily accumulating within Ww is first pre-thickened in the thickeners (SAS) and pre-thickening tanks (PS) before pumping into the digestion plant. During the raw sludge feeding stage, digested sludge is replaced from the corresponding digester while inoculation sludge is simultaneously added to the raw sludge in the seeding mixing pipe. By inoculating the raw sludge with digested sludge, the digestion process will be intensified and the raw sludge will be pre-heated at the same time.
译文: 集约型碱性污泥厌氧消化工艺是将污水处理装置中产生的原污泥转变为无害(稳定的)物质的最佳方法。 在工艺处理过程中,原污泥干物质中的有机部分会分解生成无害的新陈代谢终产物,即主要是消化气体和水。这种工艺是依靠微生物(称为厌氧菌)酶的作用,在隔绝光和空气和氧气(称为厌氧条件)并保持恒温条件下进行的。 有机物的分解分为四个阶段: 在前两个阶段(水解和酸性消化阶段)是有机物的初步分解,是由部分厌氧菌通过分解大分子的新陈代谢产物来完成。 利用酶的作用,厌氧菌对有机物中的化合物进行分解并除去其中的碳、氧成分,进一步就有乙醇、有机酸、硫化氢、氢气、二氧化碳和少量甲烷生成。 几乎所有产物溶于水都呈酸性,所以这个阶段称为酸性污泥消化过程。经过这一过程处理的污泥并未完全消化,有粘性,呈现灰色,有强烈的刺激味。 在第三阶段,醋酸(乙酸)盐形成醋酸、氢气和二氧化碳。 在第四阶段,最重要的厌氧菌群是甲烷厌氧菌,因甲烷是最重要的终产物而得名。这些厌氧菌可以将有机物分解成最小形式的分子。在此工艺过程中有氨气、二氧化碳和甲烷生成。后两者以气体形式排走;氨气与水结合形成氨水,是碱性的主要来源。 这一阶段被称为“甲烷消化”或“碱性污泥消化过程”,而处理过后的污泥已完全被消化,呈现黑色,几乎无难闻的臭气味。 如果污泥消化工艺运行良好,碱性消化阶段与酸性消化阶段相比,前者占主导地位,因为第二阶段的厌氧菌有能力生产自身新陈代谢所需的氧气,它们通过分解在酸性污泥消化阶段产生聚集的二氧化碳来生产氧气,并将分解出的碳与氢结合转化为甲烷。 通常情况下,集约型污泥消化工艺的运行不需要补充其它能源,因为工艺过程中会产生大量的消化气体,消化气体中所蕴含的能源足够用于: - 加热原污泥,使其温度达到消化罐内的温度 - 弥补散热造成的热损失(传输过程中的热损失) - 产生循环装置和污泥泵所需的机械能 - 加热建筑设施 每天从污水中沉淀聚集的原污泥先在污泥浓缩机(剩余活性污泥)和预浓缩池中(初沉污泥)预浓缩,再由泵抽入消化装置。 原污泥注入过程中,对应消化罐内的消化污泥被置换排出,而与此同时接种污泥在接种混合管道中被加入原污泥。通过接种,消化工艺效果增强同时原污泥也得到预热。
  
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