① 誰能給我找篇關於污水處理的中英文翻譯
1.1.2 編制原則
依靠科技、加強管理、優化網路、均衡施工。
1.1.3 編制指導思想
嚴格按照IS09001標准要求,與國際慣例接軌,參照了菲迪克條款對承建商的有關要求,力爭使該施工組織設計能全面、系統、科學、有效地指導該工程的安裝及調試直至試運行符合施工驗收規范和業主要求,從而實現設計意圖。
1.1.4 編制目的
確保某污水處理廠安裝工程的施工進度、施工質量、施工安全、確保文明施工、環境保護、員工健康、實現業主願望,確保用戶滿意。
1.2 工程概況
重慶市某污水處理廠二期工程是重慶市利用日本政府貸款建設的主城排水工程之一。本工程的實施將為重慶主城區的可持續發展創造安全的環境。
二期工程是在原一期工程的基礎上,完成一級處理、二級生物處理、消毒及污泥處理工程,使污水處理達到國家一級排放標准後,排入長江。
重慶市某污水處理廠用來處理雨污合流的城市污水,二期工程設計旱季處理污水量為60萬m3/d,雨季處理污水量為135萬m3/d,二級生物處理過程。遠期污水廠規模為處理污水量80萬m3/d,雨季處理污水量165萬m3/d,二級生物處理過程。
重慶市某污水處理廠二期工程由上海某設計研究院設計。
工期要求:合同生效後360天內(包括安裝和完成預調試)。
1.3 工程特點
1.3.1該工程採取設備供貨、安裝及調試總承包方式招商,對投標人要求嚴,承建商負責按設計要求提供設備及各個單項設備的性能保證的供貨,安裝及試運行。同時負責污水處理廠出水水質達到國家一級排放標准,如果達不到所保證的性能,無論是在測試期還是在20個月的運行監理期間,承建商應對設備作必要的改進或更換以達到所保證的性能。
1.3.2安裝技術要求高
工藝設備安裝技術要求高。該工程將大量採用國內外先進設備及儀器儀表,安裝精度的控制對調試致關重要,整個污水處理廠安裝調試合格後將實現計算機管理。
1.3.3自動化程度高
本工程採用PLC集中與分散相接合的控制方式。對液位/界面、溫度、壓力、溶解氧、污泥濃度、酸鹼度、流量、調節閥開啟度、有害氣體濃度、電壓、電流、功率等實施測量控制,工藝設置CRT投影儀銀幕進行顯示。
1.3.4交叉作業多
地下管網、閥井、工藝設備預留孔與土建必須配合進行,存在大量交叉作業。
1.3.5露天作業多
露天作業受氣候影響大,在施工中條件成熟的要抓緊時間實施,雨天作業要有相應的技術措施。
1.4工藝簡介
採用A/A/O處理工藝
重慶市某污水處理廠二期處理程度為一級處理、二級生物處理、消毒及污泥處理,執行中華人民共和國國家標准GB8978—1996《污水綜合排放標准》中的一級標准,即:BOD5≤20mg/1,SS≤20mg/1,CODcr≤60mg/1,NH3-N≤15mg/1,TP≤0.5mg/1。
該污水處理廠採用A/A/O生化處理工藝。它是在A/O工藝基礎上增加了一個缺氧區,具有同步脫氮除磷的功能。
A/A/O工藝處理污水首先進入厭氧區,兼性厭氧發酵細菌將污水中可生物降解的有機物轉化為VFA(揮發性脂肪酸類)這類低分子發酵中間產物。而聚磷菌可將其體內存儲的聚磷酸鹽分解,所釋放的能量可供好氧的聚磷菌在厭氧環境下維持生存,另一部分能量還可供聚磷菌主動吸收環境中的VFA類低分子有機物,並以PHB(聚羥β丁酸)的形式在其體內儲存起來。隨後污水進入缺氧區,反硝化菌就利用好氧區迴流混合液帶來的硝酸鹽,以及污水中可生物降解有機物作碳源進行反硝化,達到同時降低BOD5與脫氮的目的。接著污水進入曝氣的好氧區,聚磷菌在吸收、利用污水中殘剩的可生物降解有機物的同時,主要是通過分解體內儲存的PHB釋放能量來維持其生長繁殖。同時過量的攝取周圍環境中的溶解磷,並以聚磷的形式在體內儲積起來,使出水中溶解磷濃度達到最低。而有機物經厭氧區、缺氧區分別被聚磷和反硝化細菌利用後,到達好氧區時濃度已相當低,這有利於自養型硝化菌的生長繁殖,並通過硝化作用將氨氮轉化為硝酸鹽。非除磷的好氧性異養菌雖然也能存在,但他在厭氧區中受到嚴重的壓抑,在好氧區又得不到充足的營養,因此在與其他生理類群的微生物競爭中處於相對劣勢。排放的剩餘污泥中,由於含有大量能超量儲積聚磷的聚磷菌,污泥含磷量可以達到6%(乾重)以上。從以上分析可以看出A/A/O工藝具有同步脫氮除磷的功能。
A/A/O工藝的優點是厭氧、缺氧、好氧交替運行,可以達到同時去除有機物、脫氮、除磷的目的,而且這種運行狀況絲狀菌不宜生長繁殖,基本不存在污泥膨脹問題。A/A/O工藝流程簡單,總水力停留時間少於其他同類工藝,並且不需外加碳源,缺氧、缺氧段只進行緩速攪拌,運行費用低。
雨、污水經過上述處理合格,符合國家排放標準的污水直接排入長江。
② 求一篇關於廢水處理的英文文章
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 求廢水處理英文文獻一篇
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 急求排水或污水處理的中英文對照的英文文獻
drain off water; drain away water; dewatering: 開溝排水 dig trenches to drain water off◇排水暗溝 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; 排水噸數 displacement tonnage; 排水閥 draw off valve; 排水乾渠 arterial drainage; 排水干線 trunk sewer; 排水工程 drainage work; 排水涵洞 discharge culvert; 排水涵閘 drainage culvert and sluice; 排水湖 drainage lake; 排水機 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; 排水區 catchment; catchment area; 排水渠 drainage canal; conit; 排水渠道 discharge conit; 排水系統 drainage system; sewerage; 排水閘 outlet sluice; drainage sluice
污水處理
Sewage treatment
排水
Drain away water
⑤ 有關污水排放建議的英語作文帶翻譯
處理污水,造福人類
Sewage, the benefit of mankind
隨著科學技術的進步,幾乎每個城市都有許多的工廠,工廠里每天排出的污水都污染了許多江河、湖泊,導致大部分的魚蝦中毒死亡;同時也威脅這自然界里的生物和人類的安危,對人類的生活造成了極大的影響。
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.
我時常幻想著,假如這些污水經過處理,變成干凈的、能飲用的水,那該多好啊!於是我就想到了需要一種能隨意變大變小的「污水處理儀器」,我把它簡稱為「處污器」。它可以放在家裡、學校里、也可以安裝在工廠里。這個「處污器」是個正方形,外殼是一種踩不爛壓不扁的塑料;它的心臟是由一塊伸縮自如且永久使用的過濾網,一個具有除臭功能且永不變形的旋轉筒和一片微型的智能電動晶元組成。這個「處污器」的電是用之不竭的,只要有一絲光亮,它就立刻把光能轉化為電能,非常環保。這個「處污器」可以自動計算需要排出的污水量,然後根據排污量來改變自己的大小。比如:一間造紙廠每天生產一噸紙,只要你輕輕按紅色按鈕,它就自動計算出這間工廠的排污量,根據排污量把自己變大。再輕輕一按綠色按鈕,「處污器」馬上開始工作。污水流經入口的過濾網,所有的大大小小的垃圾就會被過濾掉。沒有垃圾的污水直接流入旋轉筒,旋轉筒不停地轉動去除臭味,再凈化。同時,它會加入人體所需要的礦物質和微量元素,然後再通過出口排出來。這些經過處理的水非常神奇,人們喝了既可以美容又可以強身健體,少生病。動物喝了會更肥壯,再兇猛的動物喝了也會變得善良可愛。這些水用來澆灌禾苗,稻穀的產量會更高。這個「處污器」放在家裡的時候,它會自動變小。家裡的生活用水經過「處污器」可以循環利用。這樣,我們不但達到了節約用水的目的,還保護了地球的生態環境。想到這里,我彷彿就生活在一個綠樹成蔭、鳥語花香、物產豐富、山清水秀……沒有一絲污染的國家裡。
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.
想到這里,我驚醒了,我想:這絕不是幻想的,這是我的夢想、理想。同學們,讓我們行動起來,一起努力,保護環境,節約用水,珍惜水資源,處理污水,造福人類,為現實吧!
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 求助一篇生活污水處理英文文獻
非洲喀麥隆,不過包括處理池塘減少蚊蟲
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
這個建議你看一下,Power Point講美國加州
http://www.doh.state.fl.us/chdJackson/Documents/Jackson_Blue_springs4forweb.pdf
這個可以看看
http://www.ianrpubs.unl.e/epublic/live/g1473/build/g1473.pdf
⑦ 急求一篇關於我國污水處理事業現狀及今後發展的趨勢的論文的參考文獻及英文翻譯
一樓2007...大騙子!!!!!!!!!!!!
⑧ 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
⑨ 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!
⑩ 高分求城市污水處理的相關英文文獻,帶中文翻譯
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