A. 水處理工藝簡介（英文）
Biological Wastewater Treatment
This is a brief summary of the various techniques that have been developed to treat
wastewater by biological means. They accomplish what is generally called secondary treatment.
Purpose:
The idea behind all biological methods of wastewater treatment is to introce contact
with bacteria (cells), which feed on the organic materials in the wastewater, thereby
recing its BOD content. In other words, the purpose of biological treatment is BOD
rection.
Typically, wastewater enters the treatment plant with a BOD higher than 200 mg/L, but primary settling has already reced it to about 150 mg/L by the time it enters the
biological component of the system. It needs to exit with a BOD content no higher than about 20-30 mg/L, so that after dilution in the nearby receiving water body (river, lake), the BOD is less than 2-3 mg/L. Thus, the biological treatment needs to accomplish a 6-fold decrease in BOD.
Principle:
Simple bacteria (cells) eat the organic material present in the wastewater. Through their metabolism, the organic material is transformed into cellular mass, which is no longer in solution but can be precipitated at the bottom of a settling tank or retained as slime on solid surfaces or vegetation in the system. The water exiting the system is then much clearer than it entered it.
A key factor is the operation of any biological system is an adequate supply of oxygen.
Indeed, cells need not only organic material as food but also oxygen to breathe, just like humans. Without an adequate supply of oxygen, the biological degradation of the waste is slowed down, thereby requiring a longer residency time of the water in the system. For a given flowrate of water to be treated, this translates into a system with a larger volume and thus taking more space.
Advantages:
Like all biological systems, operation takes place at ambient temperature. There is no
need to heat or cool the water, which saves on energy consumption. Because wastewater treatment operations take much space, they are located outdoor, and this implies that the system must be able to operate at seasonally varying temperatures. Cells come in a mix of many types, and accommodation to a temperature change is simply accomplished by self adaptation of the cell population.
Similarly, a change in composition of the organic material (e to people』s changing
activities) leads to a spontaneous change in cell population, with the types best suited to digest the new material growing in larger numbers than other cell types.
Types of equipment for biological treatment:
There are two broad types of biological wastewater treatment: those that include
mechanical means to create contact between wastewater, cells and oxygen, and those than don』t.
a) With mechanical means:
1. Activated sludge: This is the most common type. It consists in a set of two basins. In the first, air is pumped through perforated pipes at the bottom of the basin, air rises through the water in the form of many small bubbles. These bubbles accomplish two things: they provide oxygen form the air to the water and create highly turbulent conditions that favor intimate contact between cells, the organic material in the water and oxygen. The second basin is a settling tank, where water flow is made to be very quiet so that the cellular material may be removed by gravitational settling. Some of the cell material collected at the bottom is captured and fed back into the first basin to seed the process. The rest is treated anaerobically (= without oxygen) until it is transformed into a compost-type material (like soil).
The cost of an activated-sludge system is chiefly e to the energy required to pump air at high pressure at the bottom of the aerator tank (to overcome the hydrostatic pressure of the water). Another disadvantage is that the operation is accomplished in two separate basins, thereby occupying a substantial amount of real estate.
2. Trickling filter: A trickling filter consists in a bed of fist-size rocks over which the
wastewater is gently sprayed by a rotating arm. Slime (fungi, algae) develops on the rock surface, growing by intercepting organic material from the water as it trickles down. Since the water layer passing over the rocks makes thin sheets, there is good contact with air and cells are effectively oxygenated. Worms and insects living in this 「」 also contribute to removal of organic material from the water. The slime periodically slides off the rocks and is collected at the bottom of the system, where it is removed. Water needs to be trickled several times over the rocks before it is sufficiently cleaned. Multiple spraying also provides a way to keep the biological slimes from drying out in hours of low-flow conditions (ex. at night). Plastic nets are graally replacing rocks in newer versions of this system, providing more surface area per volume, thereby recing the size of the equipment.
3. Biological contactor: This is essentially a variation on the trickling filter, with the
difference being that solid material on which slime grows is brought to the water rather than water being brought to it. Rotating disks alternate exposure between air and water.
b) Without mechanical means:
The wastewater is made to flow by gravity through a specially constructed wetland.
There, the water is brought into close contact with vegetation (ex. reeds), which acts as a biological filter to the water. The organic material in the wastewater is used as nutrient by the plants. Oxygen supply is passively accomplished by surface aeration (contact with oxygen of the atmosphere). Since water flow is slow in such system, to give ample time for the biological activity to take place, there is almost no turbulence in the water and reaeration is weak. Compared to mechanical systems, constructed wetlands occupy far more real estate, but they may be aesthetically pleasing, especially if they are well integrated in the local landscape. They emit no odor, but people should stay away because of the danger posed by pathogens. Constructed wetlands have also the least energy requirement. Energy is only needed to pump the wastewater to the entrance of the system, from where gravity and biology do the rest. A major disadvantage, however, is the highly reced performance ring winter, especially in regions where ground freezes ring some of the winter months.
B. 三級廢水處理過程英文怎麼寫
三級廢水處理過程
[詞典] tertiary wastewater treating process
C. 求關於cass污水處理工藝的英文資料
This book with emphasis introced and the hospital sewage treatment related practical technology, like hydrolisis acidification, CASS, ABF, A/O, A2/O, the AB law, the oxidation ditch and so on, and elaborated at present commonly used moreover the economical effective disinfection method, like the end proct sodium hypochlorite disinfection fluid, the chemical process chlorine dioxide disinfection and so on, in addition, this book also collected reorganized the massive hospital sewage treatment typical project example.
This book in compilation process, prominent usability and pointed, introced the above method characteristic, the situation and the application method with emphasis.
D. 英文資料：國外污水處理最新進展
偶有，發到你信箱了哦，記得給分啊
E. 污水處理廠一般流程用英語表述
污水處理廠一抄般流程
The general proceres for the waste water treatments.
污水襲經過格柵進入初沉池，再進入生物反應池，在進入二沉池，
The waste water is allowed to go through the filtering grids to the preliminary sedimentation pool, and then to the biological reaction pool, and again into the secondary sedimentation pool.
F. 廢水處理的方法英文
廢水處理的方法英文可以是Methods of wastewater treatment
G. 關於污水處理過程的英語作文
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!
H. 處理流程的英文，處理流程的翻譯，怎麼用英語翻譯處理
翻譯如下
處理流程
treatment flowsheet或process flow
例句；
詳細闡述了數據採集系統的功能組成及基本回處答理流程。
The function and basic process flow of data acquisition system aredescribed.
I. 關於污水處理的原版英文 帶翻譯的 急需
DSTE型生活污水處理設備
使
用
說
明
書
一、 用途與適用范圍
本設備主要適用於處理一般生活污水或與之相類似的工業有機污水。如：飯店、療養院、學校、住宅區、工礦企業等生活有機污水處理。
二、 處理工藝
SWZ系列污水設備處理工藝，其主要處理工藝是採用目前較為成熟的生物膜法污水處理設備，對處理氨氮指標較為成熟。水質設計參數按一般生活污水水質設計計算，按進水平均BOD5:≤250mg/L,出水BOD5:≤20mg/L,進水平均CODcr:≤400mg/L,出水CODcr:≤100mg/L,進水平均NH3-N:≤40mg/L ，出水NH3-N:≤15mg/L ，進水平均SS:≤300mg/L, 出水SS:≤70mg/L，進水平均動植物油≤40mg/L，出水動植物油≤10mg/L，主要工藝路線如下：
廚房污水
污水入流
垃 事 達
圾 故 標
清 旁 迴流 排
運 通 放
上 清 液
設備沉澱池為豎流式沉澱池，沉澱上升流速為0.4—0.8毫米/秒，接觸氧化填料採用立體彈性填料，填料比表面積300m2/m3,供氧量按BOD5，NH3-N精確計算，曝氣時間6—8小時。
缺氧池停留時間2—3小時，缺氧後的污水經接觸氧化後，混合液迴流缺氧池，迴流比例根據調試確定（迴流比100—200%）沉澱池停留時間1.5—2小時以上，沉澱池污泥氣提至污泥池好氧消化，上清液迴流調節池重新處理，污泥貯存污泥池由環衛部門定期清理。
三、 接管外形圖及設備安裝
1、本設備具有三種安裝形式：一是安裝在地表以下；二是一
半埋在地坪以下，一半在地坪上；三是全安裝在地坪以上。基礎必須水平，如設備安裝在地坪以下，基礎離地坪相對高度按圖尺寸為准，同時四周挖掘寬度，長度必須離基礎邊線500mm以上，以便管道安裝。
2、管道安裝連接應該在設備就位時考慮好，設備就位時必須
按說明書設備自重，配合吊車噸位大小，安裝順序按現場對照圖就位、管道連接附管道安裝圖一份，設備就位後連接管道用橡皮墊及螺絲緊固好，使連接處不滲漏。
3、根據安裝圖，設備的位置，方向不能放錯，互相間距必須
正確。
4、安裝完畢後設備與基礎地板必須連接固定，絕對保證不使
設備流動上浮，全部安裝完畢必須把設備存滿水。試驗各管路口必須不滲漏，同時設備不受地面水上漲，而使設備錯位和傾斜。
5、設備安裝完畢無不妥後，即可用土填入設備四周的間隙中
並整平，地面填土時應注意：⑴設備人孔蓋板必須高出地坪100mm左右；⑵不能讓土堵塞人孔蓋板上的進氣口。
6、把電控櫃控制線與設備接通，接線時注意風機及潛污泵電
機的轉向。控制櫃不能放在露天，須防日曬，雨淋等。以免控制板及接線頭漏電，燒毀控制板。
7、注意事項：⑴設備安裝之處必須保證下雨不積水，⑵設備
的出水管必須在相對地坪0.4m以下，⑶設備上方不得壓有重物，不得有大型車輛經過（指無特殊設計的），⑷設備一般不得抽空內部污水，以防止地下水把設備浮起。
四、 設備使用前檢查及設備啟動
1、啟動設備前檢查好電路，接線控制櫃線路是否正確，電壓
及電流是否符合要求。該設備控制櫃為現場控制櫃。本控制櫃可同時控制若乾颱潛污泵、風機，並結合工作情況實時監測，具有自動保護報警功能，還配有手動，自動控制系統，啟動水泵時檢查水泵管路是否有滲漏及吸水，有無堵塞。
2、本設備水泵採用抗堵塞撕裂型潛污泵，其中二台水泵的控
制由微機通過檢測污水池中的液位來完成，當液位由低到高到達工作水位時，啟動工作泵，如液位繼續上升到警戒水位時，再啟動備用泵，即二台同時工作，當液位下降到工作水位時關掉工作泵，（液位通過液位開關來檢測），啟動風機時檢查旋轉方向是否正確，切忌反轉。
3、當調節池污水較少，液面低於水泵啟動液位時，二台水泵
都停止工作。這時，為使生物膜正常生長，風機間歇啟動，啟動時間在30分鍾內任選、間歇啟動周期為2小時內任選。
4、沉澱池排泥控制採用電磁閥氣提排泥，排泥周期為2小時/次，排泥時間5—8分鍾/次。
5、設備控制中心在微機櫃上按照設計編排工作程序一次完
成（無特殊情況下不得採用手動控制方式），手動控制通過面板上按鍵開關，由人工控制潛污泵、風機、電磁閥及二氧化氯發生器等設備的開啟和關閉。
五、 生物膜的培養
1、污水按額定流量不斷進入設備內。
2、啟動潛污泵、風機、電磁閥及二氧化氯發生器，風機的充
氧量減至正常充氧量的一半左右。
3、每天觀察好氧池內填料情況，如填料上長出橙黃色或橙黑
色的一層粘狀物，即已培養好生物膜，這個過程一般要7—15天完成。
4、氣溫一般在攝氏15℃—25℃最為適宜。
5、如原污水濃度太低，培養生物膜時間太長，必要時要加一
點營養，主要以糞便為主或其它。
6、PH值一定要保證6~9之間，原污水要保證達到可生化狀
態。
7、開始調試時，生活污水少量進入生活污水處理系統，待生
物膜培養好後，生活污水可按正常流量不斷進入生活污水處理系統，即調試正常開始。
六、 設備運行管理
1、將風機調至正常狀態；
2、好氧池混合液迴流比調至最佳狀態；
3、按設計運行程序工作，經常觀察生物膜的生長情況。
七、 維護保養及故障排除
1、必須注意污水中不得有大塊固體物質進入設備，以免堵塞
管道與孔口和水泵損壞；
2、設備人孔必須蓋好，以防發生意外或掉入大塊固體物質；
3、進入設備的污水PH值必須在6~9之間，偏酸偏鹼會影響
生物膜的正常生長；
4、風機一般運行6個月左右需要換機油一次，以提高風機使
用壽命；
5、必須保證風機進氣口暢通。
6、故障排除
故 障 原 因 排 除
污水流動不暢 管路或孔口有雜物堵住 用壓力水或壓縮空氣沖刷
曝氣量不足 進氣口有異物堵塞 清理異物
混合液迴流不暢 管道內有異物或閥門堵死 旋開閥門，用壓力水沖洗
污泥提升不暢 管道內有異物或閥門堵死 旋開閥門，用壓力水沖洗
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
J. 請翻譯成英文 關於污水處理的
this is a split flow system project， water，rain water and sewage go into each pipe line respectively，
sanitary sewage；toilet sewage goes into community underground sewage pipeline after disposed in septic tank，kitchen waste water after separated in separation tank goes into underground sewage pipeline，
rain water；according to regulations，collect it into pool then discharge them into neighborhood rainwater pipeline，
instrial waste water；this equipment proces waste water by coating spraying process，sewage quantity about 128m3/d,the proction waste water first goes into sewage plant to be disposed by standard procere，then discharge into sewage pipeline，
the material and layout of drainage pipe ；pe double layer corrugated pipe is adopted for outside pipelines，and UPVC for inside pipeline，