① 谁能给我找篇关于污水处理的中英文翻译
1.1.2 编制原则
依靠科技、加强管理、优化网络、均衡施工。
1.1.3 编制指导思想
严格按照IS09001标准要求，与国际惯例接轨，参照了菲迪克条款对承建商的有关要求，力争使该施工组织设计能全面、系统、科学、有效地指导该工程的安装及调试直至试运行符合施工验收规范和业主要求，从而实现设计意图。
1.1.4 编制目的
确保某污水处理厂安装工程的施工进度、施工质量、施工安全、确保文明施工、环境保护、员工健康、实现业主愿望，确保用户满意。
1.2 工程概况
重庆市某污水处理厂二期工程是重庆市利用日本政府贷款建设的主城排水工程之一。本工程的实施将为重庆主城区的可持续发展创造安全的环境。
二期工程是在原一期工程的基础上，完成一级处理、二级生物处理、消毒及污泥处理工程，使污水处理达到国家一级排放标准后，排入长江。
重庆市某污水处理厂用来处理雨污合流的城市污水，二期工程设计旱季处理污水量为60万m3/d，雨季处理污水量为135万m3/d，二级生物处理过程。远期污水厂规模为处理污水量80万m3/d，雨季处理污水量165万m3/d，二级生物处理过程。
重庆市某污水处理厂二期工程由上海某设计研究院设计。
工期要求：合同生效后360天内（包括安装和完成预调试）。
1.3 工程特点
1.3.1该工程采取设备供货、安装及调试总承包方式招商，对投标人要求严，承建商负责按设计要求提供设备及各个单项设备的性能保证的供货，安装及试运行。同时负责污水处理厂出水水质达到国家一级排放标准，如果达不到所保证的性能，无论是在测试期还是在20个月的运行监理期间，承建商应对设备作必要的改进或更换以达到所保证的性能。
1.3.2安装技术要求高
工艺设备安装技术要求高。该工程将大量采用国内外先进设备及仪器仪表，安装精度的控制对调试致关重要，整个污水处理厂安装调试合格后将实现计算机管理。
1.3.3自动化程度高
本工程采用PLC集中与分散相接合的控制方式。对液位/界面、温度、压力、溶解氧、污泥浓度、酸碱度、流量、调节阀开启度、有害气体浓度、电压、电流、功率等实施测量控制，工艺设置CRT投影仪银幕进行显示。
1.3.4交叉作业多
地下管网、阀井、工艺设备预留孔与土建必须配合进行，存在大量交叉作业。
1.3.5露天作业多
露天作业受气候影响大，在施工中条件成熟的要抓紧时间实施，雨天作业要有相应的技术措施。
1.4工艺简介
采用A/A/O处理工艺
重庆市某污水处理厂二期处理程度为一级处理、二级生物处理、消毒及污泥处理，执行中华人民共和国国家标准GB8978—1996《污水综合排放标准》中的一级标准，即：BOD5≤20mg/1，SS≤20mg/1，CODcr≤60mg/1，NH3-N≤15mg/1，TP≤0.5mg/1。
该污水处理厂采用A/A/O生化处理工艺。它是在A/O工艺基础上增加了一个缺氧区，具有同步脱氮除磷的功能。
A/A/O工艺处理污水首先进入厌氧区，兼性厌氧发酵细菌将污水中可生物降解的有机物转化为VFA（挥发性脂肪酸类）这类低分子发酵中间产物。而聚磷菌可将其体内存储的聚磷酸盐分解，所释放的能量可供好氧的聚磷菌在厌氧环境下维持生存，另一部分能量还可供聚磷菌主动吸收环境中的VFA类低分子有机物，并以PHB（聚羟β丁酸）的形式在其体内储存起来。随后污水进入缺氧区，反硝化菌就利用好氧区回流混合液带来的硝酸盐，以及污水中可生物降解有机物作碳源进行反硝化，达到同时降低BOD5与脱氮的目的。接着污水进入曝气的好氧区，聚磷菌在吸收、利用污水中残剩的可生物降解有机物的同时，主要是通过分解体内储存的PHB释放能量来维持其生长繁殖。同时过量的摄取周围环境中的溶解磷，并以聚磷的形式在体内储积起来，使出水中溶解磷浓度达到最低。而有机物经厌氧区、缺氧区分别被聚磷和反硝化细菌利用后，到达好氧区时浓度已相当低，这有利于自养型硝化菌的生长繁殖，并通过硝化作用将氨氮转化为硝酸盐。非除磷的好氧性异养菌虽然也能存在，但他在厌氧区中受到严重的压抑，在好氧区又得不到充足的营养，因此在与其他生理类群的微生物竞争中处于相对劣势。排放的剩余污泥中，由于含有大量能超量储积聚磷的聚磷菌，污泥含磷量可以达到6%（干重）以上。从以上分析可以看出A/A/O工艺具有同步脱氮除磷的功能。
A/A/O工艺的优点是厌氧、缺氧、好氧交替运行，可以达到同时去除有机物、脱氮、除磷的目的，而且这种运行状况丝状菌不宜生长繁殖，基本不存在污泥膨胀问题。A/A/O工艺流程简单，总水力停留时间少于其他同类工艺，并且不需外加碳源，缺氧、缺氧段只进行缓速搅拌，运行费用低。
雨、污水经过上述处理合格，符合国家排放标准的污水直接排入长江。
② 求一篇关于废水处理的英文文章
Raw Influent (Sewage) is the liquid waste from toilets, baths, showers, kitchens, sinks etc. Household waste that is disposed of via sewers. In many areas sewage also includes some liquid waste from instry and commerce. In the UK, the waste from toilets is termed foul waste, the waste from items such as basins, baths, kitchens is termed sullage water, and the instrial and commercial waste is termed trade waste.
The division of household water drains into greywater and blackwater is becoming more common in the developed world, with greywater being permitted to be used for watering plants or recycled for flushing toilets. A lot of sewage also includes some surface water from roofs or hard-standing areas. Municipal wastewater therefore includes residential, commercial, and instrial liquid waste discharges, and may include stormwater runoff. Sewage systems capable of handling stormwater are known as combined systems. Such systems are usually avoided since they complicate and thereby rece the efficiency of sewage treatment plants owing to their seasonality. In addition, heavy storms may overwhelm the sewage treatment system, causing a spill or overflow. It is preferable to have a separate storm drain system for stormwater.
The construction of combined sewers is a less common practice in the United States and Canada than in the past and is no longer accepted within building regulations in the UK and other European countries. Instead, liquid waste and stormwater are collected and conveyed in separate sewer systems, referred to as sanitary sewers and storm sewers in the U.S. and as foul sewers and surface water sewers in the UK. Overflows from foul sewers designed to relieve pressure from heavy rainfall are termed storm sewers or combined sewer overflows.
As rainfall runs over the surface of roofs and the ground, it may pick up various contaminants including soil particles, (sediment), heavy metals, organic compounds, animal waste, and oil and grease. Some jurisdictions require stormwater to receive some level of treatment before being discharged directly into waterways. Examples of treatment processes used for stormwater include sedimentation basins, wetlands, and vortex separators (to remove coarse solids).
The site where the process is concted is called a sewage treatment plant. The flow scheme of a sewage treatment plant is generally the same for all countries:
Mechanical treatment;
Influx (Influent)
Removal of large objects
Removal of sand and grit
Pre-precipitation
Biological treatment;
Oxidation bed (oxidizing bed) or aeration system
Post precipitation
Effluent
Chemical treatment (this step is usually combined with settling and other processes to remove solids, such as filtration. The combination is referred to in the US as physical-chemical treatment.).
③ 求废水处理英文文献一篇
Raw Influent (Sewage) is the liquid waste from toilets, baths, showers, kitchens, sinks etc. Household waste that is disposed of via sewers. In many areas sewage also includes some liquid waste from instry and commerce. In the UK, the waste from toilets is termed foul waste, the waste from items such as basins, baths, kitchens is termed sullage water, and the instrial and commercial waste is termed trade waste.
The division of household water drains into greywater and blackwater is becoming more common in the developed world, with greywater being permitted to be used for watering plants or recycled for flushing toilets. A lot of sewage also includes some surface water from roofs or hard-standing areas. Municipal wastewater therefore includes residential, commercial, and instrial liquid waste discharges, and may include stormwater runoff. Sewage systems capable of handling stormwater are known as combined systems. Such systems are usually avoided since they complicate and thereby rece the efficiency of sewage treatment plants owing to their seasonality. In addition, heavy storms may overwhelm the sewage treatment system, causing a spill or overflow. It is preferable to have a separate storm drain system for stormwater.
The construction of combined sewers is a less common practice in the United States and Canada than in the past and is no longer accepted within building regulations in the UK and other European countries. Instead, liquid waste and stormwater are collected and conveyed in separate sewer systems, referred to as sanitary sewers and storm sewers in the U.S. and as foul sewers and surface water sewers in the UK. Overflows from foul sewers designed to relieve pressure from heavy rainfall are termed storm sewers or combined sewer overflows.
As rainfall runs over the surface of roofs and the ground, it may pick up various contaminants including soil particles, (sediment), heavy metals, organic compounds, animal waste, and oil and grease. Some jurisdictions require stormwater to receive some level of treatment before being discharged directly into waterways. Examples of treatment processes used for stormwater include sedimentation basins, wetlands, and vortex separators (to remove coarse solids).
The site where the process is concted is called a sewage treatment plant. The flow scheme of a sewage treatment plant is generally the same for all countries:
Mechanical treatment;
Influx (Influent)
Removal of large objects
Removal of sand and grit
Pre-precipitation
Biological treatment;
Oxidation bed (oxidizing bed) or aeration system
Post precipitation
Effluent
Chemical treatment (this step is usually combined with settling and other processes to remove solids, such as filtration. The combination is referred to in the US as physical-chemical treatment.).
④ 急求排水或污水处理的中英文对照的英文文献
drain off water; drain away water; dewatering: 开沟排水 dig trenches to drain water off◇排水暗沟 seugh; seuch; 排水泵 wet-pit pump; discharge pump; draining pump; 排水泵站 drainage pumping plant; 排水槽 rhone; 排水道 drainageway; by-wash; drain(age) passage; 排水吨数 displacement tonnage; 排水阀 draw off valve; 排水干渠 arterial drainage; 排水干线 trunk sewer; 排水工程 drainage work; 排水涵洞 discharge culvert; 排水涵闸 drainage culvert and sluice; 排水湖 drainage lake; 排水机 draught engine; drainage machine; 排水井 [土] drain; dry well; drainage well; pumping shaft; catch basin; 排水孔 dale; weep hole; 排水口 [土] waterspout; freeing port; outfall; outlet; 排水能力 drainability; 排水区 catchment; catchment area; 排水渠 drainage canal; conit; 排水渠道 discharge conit; 排水系统 drainage system; sewerage; 排水闸 outlet sluice; drainage sluice
污水处理
Sewage treatment
排水
Drain away water
⑤ 有关污水排放建议的英语作文带翻译
处理污水，造福人类
Sewage, the benefit of mankind
随着科学技术的进步，几乎每个城市都有许多的工厂，工厂里每天排出的污水都污染了许多江河、湖泊，导致大部分的鱼虾中毒死亡；同时也威胁这自然界里的生物和人类的安危，对人类的生活造成了极大的影响。
With the progress of science and technology, almost every city has many factories, factory every day discharge sewage pollution of many rivers, lakes, cause most of the deaths of fish and shrimp; Also threaten the creatures of the nature and the human safety, caused great impact on human life.
我时常幻想着，假如这些污水经过处理，变成干净的、能饮用的水，那该多好啊！于是我就想到了需要一种能随意变大变小的“污水处理仪器”，我把它简称为“处污器”。它可以放在家里、学校里、也可以安装在工厂里。这个“处污器”是个正方形，外壳是一种踩不烂压不扁的塑料；它的心脏是由一块伸缩自如且永久使用的过滤网，一个具有除臭功能且永不变形的旋转筒和一片微型的智能电动芯片组成。这个“处污器”的电是用之不竭的，只要有一丝光亮，它就立刻把光能转化为电能，非常环保。这个“处污器”可以自动计算需要排出的污水量，然后根据排污量来改变自己的大小。比如：一间造纸厂每天生产一吨纸，只要你轻轻按红色按钮，它就自动计算出这间工厂的排污量，根据排污量把自己变大。再轻轻一按绿色按钮，“处污器”马上开始工作。污水流经入口的过滤网，所有的大大小小的垃圾就会被过滤掉。没有垃圾的污水直接流入旋转筒，旋转筒不停地转动去除臭味，再净化。同时，它会加入人体所需要的矿物质和微量元素，然后再通过出口排出来。这些经过处理的水非常神奇，人们喝了既可以美容又可以强身健体，少生病。动物喝了会更肥壮，再凶猛的动物喝了也会变得善良可爱。这些水用来浇灌禾苗，稻谷的产量会更高。这个“处污器”放在家里的时候，它会自动变小。家里的生活用水经过“处污器”可以循环利用。这样，我们不但达到了节约用水的目的，还保护了地球的生态环境。想到这里，我仿佛就生活在一个绿树成荫、鸟语花香、物产丰富、山清水秀……没有一丝污染的国家里。
I often fantasize about, if the wastewater has been treated, can become clean, drinking water, that it would be good! So I was thinking about can need a casual becomes big small "sewage treatment instrument", I put it referred to as the "basin". It can be put in the home, school, also can be installed in the factory. The "basin" is a square, the shell is a kind of trample bad pressure not flat plastic; Its heart is a piece of retractile and permanent use of filter, a deodorization function and never deformation and the rotating drum and a chip of the intelligent electric chip. The "basin" electricity is unlimited, as long as there is light, it immediately to convert light energy into electrical energy, environmental protection very much. The "basin" can automatically calculate need amount of sewage discharge, and then according to the size of the emissions to change itself. For example: a paper mill procing one ton of paper a day, as long as you gently press the red button, it will automatically calculate the emissions from the factory, according to position themselves. Gently press the green button again, "basin" start work immediately. The filter on the sewage through the entrance, all the big and small garbage will be filtered out. No garbage sewage directly into the rotating drum, rotating cylinder kept turning to remove odor, purify again. At the same time, it will join the minerals and trace elements of human need, and then discharged through exports. The treated water is very magical, people drink can not only beauty but it can strengthen physical health, sick less often. Animals drink will be more fat, and then drank the ferocious animals will become kind and lovely. The water used to irrigate the movie, the output of rice is higher. The "basin" at home, it will automatically become smaller. Home after "basin" of domestic water can be recycled. In this way, we not only achieved the purpose of saving water, protect the ecological environment of the earth. Thought of here, I like to live in a tree-lined, charactizing a fine spring day, rich natural resources, beautiful scenery... No any pollution in a country.
想到这里，我惊醒了，我想：这绝不是幻想的，这是我的梦想、理想。同学们，让我们行动起来，一起努力，保护环境，节约用水，珍惜水资源，处理污水，造福人类，为现实吧！
Thought of here, I woke with a start, I thought: this is not fantasy, this is my dream and ideal. Boys and girls, let's action, and work together to protect the environment, save water, cherish water, sewage, and for the benefit of humanity, for real!
⑥ 求助一篇生活污水处理英文文献
非洲喀麦隆，不过包括处理池塘减少蚊虫
Mosquito development in a macrophyte-based wastewater
treatment plant in Cameroon (Central Africa)
Ives Magloire Kengne a,∗, François Brissaud b, Amougou Akoa a,
Roger Atangana Etemea, Jean Nyaa, Alomba Ndikefor a, Theophile Fonkou c
a Wastewater Research Unit, Faculty of Science, University Yaounde I, P.O. Box 8404, Yaounde, Cameroon
b Hydrosciences, University Montpellier II, 34095 Montpellier Cedex 05, France
c Faculty of Science, University Dschang, P.O. Box 67, Dschang, Cameroon
Received 10 December 2002; received in revised form 30 July 2003; accepted 15 August 2003
http://www.bvsde.paho.org/bvsacd/leeds/mosquito.pdf
http://www.ianrpubs.unl.e/epublic/live/g1479/build/g1479.pdf
Water and Wastewater Element
Introction
This element addresses the City of Hagerstown’s water and wastewater systems. It
establishes policies to guide the provision of future wastewater and water service to the
City and its Medium-Range Growth Area. While this element is not intended to meet the
requirements of the Water Resources Element (pursuant to House Bill 1141), it
nonetheless sets forth policies that emphasize the maximization of available treatment
capacity, and the coordination of water and wastewater service allocation with the City’s
growth goals. This element of the 2008 Comprehensive Plan will supplement the
Washington County Water and Sewer Plan, which was in progress in 2008. Figure 4-1
delineates current water and wastewater service areas.
Wastewater Service
http://www.hagerstownmd.org/Assets/Plan_Dev/04-Water-Sewer.pdf
这个建议你看一下，Power Point讲美国加州
http://www.doh.state.fl.us/chdJackson/Documents/Jackson_Blue_springs4forweb.pdf
这个可以看看
http://www.ianrpubs.unl.e/epublic/live/g1473/build/g1473.pdf
⑦ 急求一篇关于我国污水处理事业现状及今后发展的趋势的论文的参考文献及英文翻译
一楼2007...大骗子！！！！！！！！！！！！
⑧ 关于污水处理的原版英文 带翻译的 急需
DSTE型生活污水处理设备
使
用
说
明
书
一、 用途与适用范围
本设备主要适用于处理一般生活污水或与之相类似的工业有机污水。如：饭店、疗养院、学校、住宅区、工矿企业等生活有机污水处理。
二、 处理工艺
SWZ系列污水设备处理工艺，其主要处理工艺是采用目前较为成熟的生物膜法污水处理设备，对处理氨氮指标较为成熟。水质设计参数按一般生活污水水质设计计算，按进水平均BOD5:≤250mg/L,出水BOD5:≤20mg/L,进水平均CODcr:≤400mg/L,出水CODcr:≤100mg/L,进水平均NH3-N:≤40mg/L ，出水NH3-N:≤15mg/L ，进水平均SS:≤300mg/L, 出水SS:≤70mg/L，进水平均动植物油≤40mg/L，出水动植物油≤10mg/L，主要工艺路线如下：
厨房污水
污水入流
垃 事 达
圾 故 标
清 旁 回流 排
运 通 放
上 清 液
设备沉淀池为竖流式沉淀池，沉淀上升流速为0.4—0.8毫米/秒，接触氧化填料采用立体弹性填料，填料比表面积300m2/m3,供氧量按BOD5，NH3-N精确计算，曝气时间6—8小时。
缺氧池停留时间2—3小时，缺氧后的污水经接触氧化后，混合液回流缺氧池，回流比例根据调试确定（回流比100—200%）沉淀池停留时间1.5—2小时以上，沉淀池污泥气提至污泥池好氧消化，上清液回流调节池重新处理，污泥贮存污泥池由环卫部门定期清理。
三、 接管外形图及设备安装
1、本设备具有三种安装形式：一是安装在地表以下；二是一
半埋在地坪以下，一半在地坪上；三是全安装在地坪以上。基础必须水平，如设备安装在地坪以下，基础离地坪相对高度按图尺寸为准，同时四周挖掘宽度，长度必须离基础边线500mm以上，以便管道安装。
2、管道安装连接应该在设备就位时考虑好，设备就位时必须
按说明书设备自重，配合吊车吨位大小，安装顺序按现场对照图就位、管道连接附管道安装图一份，设备就位后连接管道用橡皮垫及螺丝紧固好，使连接处不渗漏。
3、根据安装图，设备的位置，方向不能放错，互相间距必须
正确。
4、安装完毕后设备与基础地板必须连接固定，绝对保证不使
设备流动上浮，全部安装完毕必须把设备存满水。试验各管路口必须不渗漏，同时设备不受地面水上涨，而使设备错位和倾斜。
5、设备安装完毕无不妥后，即可用土填入设备四周的间隙中
并整平，地面填土时应注意：⑴设备人孔盖板必须高出地坪100mm左右；⑵不能让土堵塞人孔盖板上的进气口。
6、把电控柜控制线与设备接通，接线时注意风机及潜污泵电
机的转向。控制柜不能放在露天，须防日晒，雨淋等。以免控制板及接线头漏电，烧毁控制板。
7、注意事项：⑴设备安装之处必须保证下雨不积水，⑵设备
的出水管必须在相对地坪0.4m以下，⑶设备上方不得压有重物，不得有大型车辆经过（指无特殊设计的），⑷设备一般不得抽空内部污水，以防止地下水把设备浮起。
四、 设备使用前检查及设备启动
1、启动设备前检查好电路，接线控制柜线路是否正确，电压
及电流是否符合要求。该设备控制柜为现场控制柜。本控制柜可同时控制若干台潜污泵、风机，并结合工作情况实时监测，具有自动保护报警功能，还配有手动，自动控制系统，启动水泵时检查水泵管路是否有渗漏及吸水，有无堵塞。
2、本设备水泵采用抗堵塞撕裂型潜污泵，其中二台水泵的控
制由微机通过检测污水池中的液位来完成，当液位由低到高到达工作水位时，启动工作泵，如液位继续上升到警戒水位时，再启动备用泵，即二台同时工作，当液位下降到工作水位时关掉工作泵，（液位通过液位开关来检测），启动风机时检查旋转方向是否正确，切忌反转。
3、当调节池污水较少，液面低于水泵启动液位时，二台水泵
都停止工作。这时，为使生物膜正常生长，风机间歇启动，启动时间在30分钟内任选、间歇启动周期为2小时内任选。
4、沉淀池排泥控制采用电磁阀气提排泥，排泥周期为2小时/次，排泥时间5—8分钟/次。
5、设备控制中心在微机柜上按照设计编排工作程序一次完
成（无特殊情况下不得采用手动控制方式），手动控制通过面板上按键开关，由人工控制潜污泵、风机、电磁阀及二氧化氯发生器等设备的开启和关闭。
五、 生物膜的培养
1、污水按额定流量不断进入设备内。
2、启动潜污泵、风机、电磁阀及二氧化氯发生器，风机的充
氧量减至正常充氧量的一半左右。
3、每天观察好氧池内填料情况，如填料上长出橙黄色或橙黑
色的一层粘状物，即已培养好生物膜，这个过程一般要7—15天完成。
4、气温一般在摄氏15℃—25℃最为适宜。
5、如原污水浓度太低，培养生物膜时间太长，必要时要加一
点营养，主要以粪便为主或其它。
6、PH值一定要保证6~9之间，原污水要保证达到可生化状
态。
7、开始调试时，生活污水少量进入生活污水处理系统，待生
物膜培养好后，生活污水可按正常流量不断进入生活污水处理系统，即调试正常开始。
六、 设备运行管理
1、将风机调至正常状态；
2、好氧池混合液回流比调至最佳状态；
3、按设计运行程序工作，经常观察生物膜的生长情况。
七、 维护保养及故障排除
1、必须注意污水中不得有大块固体物质进入设备，以免堵塞
管道与孔口和水泵损坏；
2、设备人孔必须盖好，以防发生意外或掉入大块固体物质；
3、进入设备的污水PH值必须在6~9之间，偏酸偏碱会影响
生物膜的正常生长；
4、风机一般运行6个月左右需要换机油一次，以提高风机使
用寿命；
5、必须保证风机进气口畅通。
6、故障排除
故 障 原 因 排 除
污水流动不畅 管路或孔口有杂物堵住 用压力水或压缩空气冲刷
曝气量不足 进气口有异物堵塞 清理异物
混合液回流不畅 管道内有异物或阀门堵死 旋开阀门，用压力水冲洗
污泥提升不畅 管道内有异物或阀门堵死 旋开阀门，用压力水冲洗
DSTE TYPE DOMESTIC SEWAGE TREATMENT EQUIPMENT
OPERATION INSTRUCTIONS
Operation instructions to the DSTE
I Use and scope
This set is mainly used to treat the domestic sewage or some kind of instrial waste water, such as the waste water from the restaurant , sanatorium, or school, etc.
II. Treatment Technology
This DSTE set is mainly adopt the method of the Biomembrane method to deal with the waste water, it is a quite mature method to remove the NH4-N content in the water nowadays, the parameter of the water quality is designed according to the waste quantity containing in the raw water:
Waste intake average parameter
BOD5≤250mg/l
CODcr≤400mg/l
NH3-N≤40mg/l
SS≤300mg/l
Grease≤40mg/l
Effluent average parameter
BOD5≤20mg/l
CODcr≤100mg/l
NH3-N≤15mg/l
SS≤70mg/l
Grease≤10mg/l
The main treatment technology flow is as follow:
Kitchen sewage Oil interceptor
Intake of the sewage Bar rack Retention pool Anaerobic tank
sludge recycle
Contact oxidation tank Sediment tank disinfection tank
To disposal sludge tank
The sediment tank is erect style tank, the up-flow velocity is 0.4---0.8mm/s, contact oxidation material is stereoscopic and elastic, the specific surface area of it is 300m2/m3, the O2 supply is designed according to the BOD5 and NH3-N content in the water, and the aeration period will be 6～8 hours.
The time for waste water stay in the anaerobic tank is 2-3 hours, after contact oxidation, the waste water and sludge backflow to the anaerobic， backwater ratio is (100--200%) according to the adjustment. The time the waste water be kept in the sediment tank should more than 1.5～2 hours, sludge in the sediment tank will be exalted to the sludge tank by air waiting for the contact oxidation, then the overflow will backflow to the retention basin retreated, the sludge in the tank would be cleaned periodically.
III Installation
1.Three forms of installation: ⑴underground installation; ⑵half underground installation;⑶on the ground installation. The basement must be flat, if the set is installed underground, the height between the basement and the surface of the ground should adopt the drawing, and make the excavation width exceed 500mm out of the foundation plate , which is better for pipe installation.
2. Everything about pipe installation and connection should be taken into consideration when the set is ready. Make sure the net weight is suit with the crane, and the installation sequence should adopt the designed drawing, tight the screws with the rubber washer so as to connect the pipes, make sure there isn’t any leaking in the conit joint.
3. The install direction and position should be correct, so do the interval between them.
4. Fix the set with the surface of the ground after the installation has been finished, make sure it is firmly fixed, and the set wouldn’t move in the future. Pour in water after finish installation to the full. Make sure there isn’t any leaking on the conit joint, and make sure the set wouldn’t in version or inclined because of rise of the water under the ground.
5. After correct installation, pour some soil into the interval and make it flat, make sure:
⑴ The cover of the manhole should higher than the surface for about 100mm;
⑵ The air intake pipe on the manhole wouldn’t be blocked by the soil.
6. Connect the electrical control wire with the set, pay attention to the running direction of the blower and the submersible sewage pump. The electrical control cabinet couldn’t be kept outdoor, because the sun or rain would destroy the control board.
7. Points of attention:
⑴ The place to install the set could not store up the water when it is raining, ⑵ The water outlet pipes should be 0.4m under the surface of the ground.
⑶ Make sure that there wouldn’t any heavy things on top of it, and no tracks would get through it.
⑷ There should always some waste water in the set to prevent the floatage of the set by the underground water.
IV Examine the set and start before use
Make sure the electrical wires, control panel wires and the voltage are all accord with requirement. The local control cabinet could not only be used to control submersible sewage pumps and the blowers at the same time, but also could monitor itself according to the working condition. It also have the ability to self protect and self alarm, beside that, manual switch and automatic exchange switch are also equipped. To examine the pipes of the pump before start to see whether it is seeping or bibulous or stifled.
The pump of this set is antiblock avusion type pump, the control of two pumps is through the liquid switch in the waste water basin, working pump start to work when the height raised to the start level; the spare pump start when the height raised to the highest level; pump stop working when the height fall to the low level. Check out whether the revolving direction of the blower is correct when it is started.
When the liquid level is lower than the pump starting height, both two pumps stop working. At this time, the blower start to work intermittently, working time should between 0～30 minutes, and the period of the intermittent start should between 0～2 hours.
The control of the sludge discharge in the sediment tank is air boost discharge by the electromagnetic valve, discharging cycle: 2hours/time, discharging time: 5～8minutes/time.
The control of the set should be finished according to the computer designed working procere one time, (only under some special conditions the hand –driven control could be used). If it is necessary, the manual control of the submersible sewage pumps and the blowers and the electromagnetic valve can be realized through turning the switch on or off by hand.
V. The cultivation of the biomembrane
1. The quantity of sewage which entering in the set should accord with the rated flux with no stop.
2. The oxygen volume from the blower should reced to half amount when starting the submersible sewage pump, blower, electromagnetic valve and the CLO2 generator。
3. Observe the material filled in the contact oxidation tank, the biomembrane has finished when a piece of yellow or black dope could be found on the surface. The process costs 7～15 days.
4. The best temperature should be: 15～25℃
5. If the density of the original sewage is to low, it would cost more time to cultivate the biomembrane, so when it is necessary, some kind of furtilizer should be added.
6. The pH value should be kept between 6 and 9, so that the original sewage could reach the step of contact oxidation.
7. When start, pour in small quantity of sewage into the sewage treatment system. After the bilmembrane is finished, Sewage could enter in the system in normal flux.
VI. The management of the operation
1. Turn the blower to the normal position.
2. Let the backflow ratio of the contact oxidation tank reach the best position.
3. Working as designed, often observe the cultivative situation of the biomembrane.
VII. Maintenance and fix the breakdown
1. Make sure that there wouldn’t any solid material content in the sewage, to prevent the block of the pipes.
2. Cover the manhole of the set so as to prevent the droping of some solid material.
3. The pH value should be kept between 6 and 9, in order to keep a better condition for cultivation.
4. Change the lubricating oil in the blower one time every six months.
5. Keep the entrance of the blower unblocked.
6. Fix the breakdown
fault reason method
No enough water flow Sth. block in the pipe Clean by pressure water or air
No enough aeration volume Sth. block in the entrance of the blower Clean it
No enough refluence of the mix liquid Sth. block in the pipe or entrance of valve Unscrew the valve, clean it by pressure water
No enough refluence of the sludge Sth. block in the pipe
or entrance of valve Unscrew the valve, clean it by pressure water
⑨ 关于污水处理过程的英语作文
Title: Process in Recycle of Used Water.
A huge amount of used water are proced in our daily life. Treatment of used water not only prevents environmental pollution also saves water resource. Recyle of used water is usually involved in the following process. First, used water is introced into a sewage plant where the water are left steady for certain time. Precipitates are separated and used for fertilizers. The remaining water can be regarded as ordinary water which either is discharged into river or introced into a purification plant for fresh water.
Therefore, we must save water in our daily life!
⑩ 高分求城市污水处理的相关英文文献，带中文翻译
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