絮凝過程 的英文怎麼說
中文拼音 [xùníngguòchéng]
絮凝過程
英文
flocculation process-
Application of coagulant in wastewater treatment
廢水處理過程中絮凝劑的應用The research of forming process of the activated sludge floc
活性污泥凝絮體的形成過程研究It showed that, the formation process of floc consisted of four stages ; bacteria multiplication ; floccule forming ; floccule polymerizing and the phase of the floe coming into being
結果顯示:反應器活性污泥凝絮體的形成過程經歷了4個階段,即細菌增殖階段、絮狀體形成階段、絮狀體聚合階段、凝絮體形成階段。By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合試驗條件的假設,建立了顆粒碰撞頻率表達式,應用了顆粒數量平衡方程,從而建立了絮凝過程的動力學生長模型,模型計算結果與試驗數據對比表明,二者趨勢一致,在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生長階段,通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維數基本與試驗中的實際絮體相符,在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。In the text, the forming process and the microbial ecology of the activated sludge floe in sbr ( sequencing batch reactor ) were observed and studied
摘要採用序列間歇式反應器( sbr ) ,對啤酒廢水活性污泥凝絮體的形成過程及其微生態演替進行研究。In this way thick and big floes are formed. this process decides that floes have self - similarity and dilation symmetry in a certain extent, and they are two important characteristics of the fractal
這一過程決定了絮凝體在一定范圍內具有自相似性和標度不變性,這正是分形的兩個重要特徵。Better effect of the dust cleaning has been obtained at flocculation agent and form coagulant aids are added to the powder , which makes a part of fine particulates of the blasting fume sole " join " each other and flocculate and colloids spider webs which combining with the produced foam viscosity forms a big net of catching dust. and the net will coth the remaining fine particulates according to the principles of colloid unstability and characters of the blasting fume aerocolloid. all the processes of catching dust are completed automatically inside the blasting fume. 3figs., 1tab., 18refs
依據膠體脫穩原理,利用爆破煙塵氣溶膠的特性,在工程爆破使用的炸藥中添加絮凝劑和發泡助凝劑,使爆煙氣溶膠中的部分微粒先相互「架橋」絮凝成許多蛛網狀膠團,又與隨後生成的泡沫粘結成捕塵「網」再去捕集其餘的微粒,在爆煙的內部自發地完成捕塵過程,從而取得了較好的除塵凈化效果.圖3 ,表1 ,參18Study achievement appears as following aspects : ( 1 ) yellow river estuary gate river flow and tide flow mixed area is not keep standing deposition status, on special income water and sediment conditions, boundary conditions and oceanic power conditions, this area may on the scour status ; ( 2 ) observed from estuary sediment deposition distributing process : delta and sea offing area sediment deposition vary trend is similar, each part sediment deposition scale varies as wave shape ; ( 3 ) on estuary gate, affect the sediment deposition factors, primary factors are tide prop, the gate widens gradually, estuary gate have branches, brine induced flocculation. this paper study the estuary gate widen, estuary gate have branches to affect the river channel deposition in quantity ; ( 4 ) based on field measured data, for the first time, deduce the estuary sediment deposition and distributing regress formula which can estimate estuary different areas sediment deposition volume ; ( 5 ) this subject demonstrate the estuary delta coastline dynamic balance conception, build the relationship between the estuary income sediment with deposition land area, draw the following important conclusion : when estuary years - averaged income sediment keeps at 345 million tons, the delta coastline may on the dynamic balance status. ( 6 ) this subject firstly brings up estuary sediment optimized control conception, and has the primary study on the macroscopically optimized control conception method
研究認為: ( 1 )黃河河口口門逕流潮汐區域並非持續保持淤積狀態,在特定的來水來沙、邊界條件和海洋動力條件下,該區域可以處于沖刷狀態; ( 2 )從河口泥沙沉積分配的過程來看:三角洲與濱海區泥沙的沉積變化趨勢是基本一致的,各部位的泥沙沉積比例變化基本呈波動狀態,且三角洲與濱海區泥沙的沉積比例與來沙量密切相關,基本成正比關系; ( 3 )在口門處,影響泥沙沉淤的因素主要集中在潮汐頂托、口門逐漸加寬、河口門分汊、鹽水造成絮凝等,本報告主要對口門加寬,口門西妥理工大學工程碩士專業學位論文分漢對河道淤積的影響進行了定量分析: (一扣根據實測資料首次建立了河贖流路泥沙沉積分配的回歸計算式,據此可以預估計算河口不同區域泥沙的沉淤量; 、 5 )本項研究首次論證了河口三角洲岸線動態平衡的概念,並建立了黃河河口來沙量與造陸面積的相關關系,得出了當河口多年平均來沙量維持在3 . 45億t時其河口三角洲岸線則可能處于動態平衡狀態的重要結論; 『 6 )本項研究首次提出了河口泥沙優化調控的概念,並對其宏觀優化調控模式進行了初步探討。The flocculation morphology is an advanced subject that researchs flocculation processes from the reality sha pe and size of the colloid and the flocculating agent in the water, according to the reality structure of flocks
混凝形態學就是從水中膠體顆粒和所加混凝劑在水中的真實形狀和大小,以及由它們形成的絮凝體真實結構出發來研究整個混凝過程的一門較高層次的學科。The experimental study suggests that ofm reactor should provide high efficient injection dispersion performance with good controllability on the mixing intensity. so it should also satisfy the special requirement of the concentration distribution in the injection area for processes such as flocculation
實驗研究表明:振蕩流混合反應器能夠實現高效的注入分散過程,而且可以精確控制混合的強度,完全可以滿足絮凝等反應過程對注入區濃度場的特殊要求。In this paper, to investigate the coagulation process of inorganic suspended particles ( isp ), online monitoring of the coagulation process was conducted by using pda2000. the process of floe formation and the morphological characteristics of floes were investigated in detail through tv - microscope. the mechanism of partical collision and coagulation kinetics were preliminary discussed
為了考察無機懸浮顆粒體系的混凝過程,研究絮凝體的構造特徵,本文通過pda2000對無機懸浮體系的混凝進行光學在線監測,運用電視顯微攝像儀對絮凝體的形成過程及其形態學特性進行了系統的研究,對膠體顆粒碰撞機制及混凝動力學作了初步探討。Because of the influences of the turbidity, ph of raw water, current, temperature and the pollutions of raw water, the process of coagulant dosage is a very complex reaction. to find out the automation of coagulant dosage and reduce the cost of the coagulant, many domestic and international scientific research organizations make research into the theory and mechanism of automation of coagulant dosage, such as the streaming current control method ( scd ), the emulation experimenting method in spot, mathematics model, flocculation control device ( fcd )
由於受到原水濁度、 ph值、配水流量、原水溫度和其他水質污染的影響,投藥絮凝過程是一個非常復雜的反應過程,為實現投藥系統的自動化和降低混凝劑耗率,國內外相當多的科研機構和院校在進行投藥機理和自動化處理的研究,主要有流動電流儀檢測法( scd ) 、現場模擬實驗法、數學模型、顯示絮凝控製法( fcd法)等自動投藥方式的研究和實驗。So many scholars research the flocculation morphology based on the fractal theory
於是,很多學者以分形理論為基礎,來進行絮凝過程形態學的研究。Along with the science technology developing continuously and especially the computer technology getting perfect and popular, the request for the research and the application in flocculation processes improves
隨著科學技術的不斷發展,尤其是計算機技術的完善與普及,對絮凝過程的研究與應用的要求進一步深入。The flocculation has a very important role in water treatment. the perfect degree in flocculation processes directly affect the treatment effect in the following treatment, such as sedimentation and filtration and so on
在給水處理中,混凝具有極其重要的作用,絮凝過程的完善程度,直接影響著后續處理如沉澱、過濾等工藝單元的處理效果。The pullulation of floes is a random process and it has nonlinear character. if the fragmentation of floes is not considered, the routine flocculation process is to form the small group from initial particle and the big group from small groups. finally the biggest group is formed from those big groups
由於絮凝體的成長是一個隨機過程,具有非線性的特徵,如果不考慮絮凝體破碎的話,常規的絮凝過程是由初始粒子結成小的集團,小的集團又結成大的集團,然後結成更大的集團,這樣一步一步成長為粗大絮凝體。Although, there is no rigorous distinguish in the process of coagulation, the experiments proved the following things : the mixture and coagulation of inorganic flocculant nearly finish at the same time, need the weaker stir intensity ; this definition and its physical model are meaningful to the further study
雖然實際混凝過程沒有嚴格區分,但試驗證明了無機絮凝劑的混合和凝聚幾乎是在同一階段完成,並且要求較弱的攪拌強度。The output signal of pda is affected by the suspended particle concentration, particle size, and the type and dosage of coagulant as well. by analysing the fi curve, it is found that the characteristic parameters of fi curve closely relate to aggregates size and turbidity removal the aggregates size and turbidity removal achieve the maximum when the amplitude of fluctuation is the maximum. the mean diameter and fractal dimension increase with agitation time, and finally reach a steady - state
通過對混凝過程的在線監測和對pda輸出信號fi曲線的數學解析表明: fi曲線綜合反映了懸濁液中膠體顆粒濃度和顆粒粒徑,混凝劑種類和投量很大程度上影響了fi曲線形狀, fi曲線的特徵值與絮凝體平均粒徑和濁度去除率之間具有良好的相關關系,在振幅最大處,濁度去除率達到最高,絮體平均粒徑最大,該條件下對應的投藥量為最佳投藥量。This paper mainly studied the coagulation characteristics of natural organic matters ( nom ), analyzed the impact of inorganic particles on coagulation mechanisms and effects of nom. online monitoring of the coagulation process was conducted by using pda2000 and the structure of flocs was preliminary discussed
本文主要研究了水中天然有機物的混凝特性,同時分析了無機顆粒對有機物混凝機理及效果的影響,並通過pda2000對混凝過程進行光學在線監測,初步探討了絮體結構。Online monitoring of the coagulation process by pda2000 shows that flocculation index is fairly consistent with the removal of toc, the bigger the fi, the higher the toc removal. in this paper, preliminary study on floc structure is also reported. it is found that various coagulation conditions lead to different floc structures
在混凝過程中利用pda2000進行光學在線監測,充分表明其輸出信號fi指數與toc去除率之間具有很好的相關性, fi指數越大, toc去除率越好,並且通過對fi指數的解析,可看出其對混凝過程及絮體的變化具有很靈敏的表徵作用。分享友人