Lesson-16-Sewage-Treatment-Device.doc

Lesson 16 Sewage Treatment Device第16课 生活污水处理装置1. Summary概述The Taiko Ship Clean “SBT Series” are compact sized sewage treatment systems with superior performance capabilities，designed exclusively for marine installations.Taiko船舶清洁“SBT系列”是尺寸紧凑的生活污水处理系统，它有优越的性能，并且专门针对海洋设施设计。They are the result of considerable research and include the latest technology to prevent water pollution.它们是大量研究的结果,包括最新的防止水的污染技术。The use of a “Submerged Bio-filter Treatment System” and the transposition of the sterilization compartment to the center of the device enables it to be more compact. These state of the art devices are thereby more stable under conditions of pitch and roll and are sized for vessels of 200 or more gross tons，or accommodating 10 or more persons as described in the Annex IV of MARPOL TREATY 73/78.采用“淹没式生物滤器处理系统”和灭菌室换位到设备的中心，使它结构更紧凑。因此这些具有先进技术水平的装置在船舶纵横摇动的情况下更稳定, 而且它们的处理能力适合200总吨及以上,或相容10人及以上的船舶，符合MARPOL条约73/78附则IV的规定。Another remarkable feature of these devices is the ease of operation and maintenance compared with conventional systems.另一个显著的特点是这些装置与常规系统相比操作维护方便。Furthermore，the quality of effluent exceeds the requirements specified for Type II MSD (Marine Sanitation Devices)contained in Regulation(33CFR159)enforced by the U. S. Coast Guard and also those of the MEPC 2(VI). (MARPOL TREATY)此外,排出水的质量超过了美国海岸警卫队对实施的规定(33 CFR159)中对II型船舶卫生设备的要求和MARPOL公约附则VI的要求。Test results verify the following performance characteristics.检测结果符合以下性能特点。BOD5: less than 50 ppm 生化耗氧量：不超过50PPMSS: less than 50 ppm 悬浮固体量：不超过50PPMColiform bacteria (MPN): less than 200/100 mL 大肠杆菌：不超过200100L2. Construction (refer to Fig. 16-1) 2.结构（参考图16-1）2.1 General of “Bio-filter Method” 2.1 生物滤池法的概述The Bio-filter Method is a method of processing sewage by utilizing a biological film. Packing media are placed in the tank and liquid sewage is circulated around it by means of aeration.生物滤池法是利用生物膜来处理生活污水的方法。填料介质装在柜子里，生活污水流体通过曝气在它周围循环。The sewage contacts the biological film causing growth of bacteria on the surface of packing media and organic matter (BOD source) is treated by biochemical oxidation.污水接触生物膜以后，使得细菌在填料的表面生长繁殖。从而通过生化氧化处理污水中的有机物(生化需氧量来源)。2.2 Construction2.2 结构a. Bio-filter Tank a 生物滤池柜Sewage from toilets in the ship flows into the Bio-filter Tank. Foreign objects which could obstruct operation of the device are held by a screen.Air from a blower causes circulation of the liquid and breaks up the solids. It also supplies oxygen to the microorganisms attached to the packing media.船上厕所里的污水流入生物滤池柜。能够影响设备运行的外来杂质被一个筛子阻挡。从鼓风机出来的空气使得液体循环，固体分解。它也向附着在填料介质上的微生物提供氧气。b. Sterilization compartment b 消毒室The sewage treated in the Bio-filter Tank flows into the sterilization compartment. This liquid is thoroughly disinfected as it washes against the chemical sterilizing tubes in the sterilization compartment. The treated water is collected in the sterilization compartment then discharged overboard by automatic operation of the discharge pump.生物滤池柜处理过的污水流入消毒室。这些液体流过消毒室的化学消毒管时被彻底消毒。处理过的污水在消毒室里汇集，然后通过排污泵的自动操作排到舷外。B. Multiple Choice.选择题Questions 1-8 are based on the text. 根据课文回答问题1-8.1. Which of the following statements is not true about the “SBT Series”? 关于“SBT系列”，哪一项叙述不正确?答案-CA. The operation of the plant is stable under pitch and roll conditions. 装置在船舶纵横摇动的情况下也能稳定工作B. The plant is more compact compared with the conventional one. 与传统设备相比更紧凑C. It is especially designed for land use. 专门针对陆用设计。D. The plant has excellent performance. 装置性能良好。2. Which of the following requirements met by the quality of effluent from the “SBT Series”? “SBT系列”排污水满足哪一项要求?答案;DA. Coliform bacteria (MPN):less than 200/100 mL. 大肠杆菌:不超过200/100 mL.B. SS: less than 50 ppm. 悬浮固体量:不超过50 ppmC. BOD5: less than 50 ppm. 生化耗氧量:不超过50 ppmD. All of the above. 以上全部。3. How does the Bio-filter Method process sewage? 生物滤池法如何处理生活污水?答案;DA. By causing growth of bacteria in the sewage使污水中的细菌繁殖。.B. By utilizing a biological film. 利用生物过滤膜。C. By treating organic matter in biochemical oxidation. 生化氧化处理污水中的有机物D. All of the above. 以上全部。4. Which of the following operations is correct? 下列哪项操作是正确的?答案:C A. After being treated in the Bio-filter Tank the sewage is discharged overboard. 生物滤池柜处理过的污水排向舷外。B. After going through the biological film，the sewage is discharged overboard. 经过生物膜后，污水排向舷外。C. The sewage treated in the Bio-filter Tank flows into the sterilization compartment生物滤池柜处理过的污水流人消毒室。.D. The sewage is first collected in the sterilization compartment then discharged to the Bio-filter Tank. 在消毒室收集生活污水，然后排向生物滤池柜。5. The basic process of biologicai sewage treatment consists of_the liquid eitherby bubbling air through it，or by agitating the surface. 生活污水生化处理的基本过程是使液体，既可通过向液体中通气也可通过搅动其表面进行。答案.AA. oxygenating氧化B. disinfecting消毒C. deoxygenating脱氧 D. proportioning配比6. It is_that reduce the BOD by converting the organic content of the sewage to a chemically and organically inert sludge. 是_将污水中的有机质转化为化学性和生物性惰性污泥，才减少了生物耗氧量。答案:AA. the bacteria.细菌B. oxygen.氧气C. oxidizing function氧化作用D. agitation function.搅拌作用7. The sewage treatment usually consists of_.生活污水处理通常包括_。答案.CA. the Bio-filter Tank生物滤池柜B. the sterilization compartment消毒室C. both A and B A和B D. either A or B A或B8. What is the way of oxygenating the effluent in the “SBT Series”?SBT系列”中氧化污水的方式是什么?答案;AA. Air from a blower causes circulation of the liquid supplies it with oxygen.鼓风机吹气使液体循环B. By burning the sludge. 通过燃烧污泥C. By using packing media. 使用包装介质D. By utilizing a biological film. 利用生物膜。Task 2 Vocabulary and Structure任务2词汇与结构A. Technical Terms专业术语Translate the following into Chinese. 将下列词组译成汉语。1. SBT Series SBT系列2. sewage treatment system生活污水处理系统3. marine installation海洋设施4.latest technology最新技术5. sterilization compartment消毒室6. pitch and roll纵横摇7. conventional system传统系统8. biological film生物膜D. Active Words常用词Complete the following sentences by filling in the blanks with the words in the table. Change the form of the words if necessary. 从框中选词完成句子，如有必要改变词的形式。designexceedprocesstreatobstruct1. The circuit breaker will also open if the overload current rating is exceeded for a period of time. 如果额定电流超载一段时间，断路器也会打开。2. These powerful computer