絮凝粒 的英文怎麼說
中文拼音 [xùnínglì]
絮凝粒
英文
floccules-
But in the forepassed research, the people all abstracted the colloid in the water as the sphericity and explained it by the known theory of the colloid chemistry. moreover some people modified the result by the grain coefficient in the derivation of theory. but this assume had more difference on the observed phenomena in the experiment, so it was not perfect in theoretical speaking
關于絮凝的理論基礎在國外研究得比較多,但在過去的研究中,人們大都是將水中的膠體顆粒抽象為球形,用已有的膠體化學理論去加以解釋,並在理論推導中引入顆粒系數加以修正,這與實際實驗所觀察到的現象有較大的差別,從理論上說,是很不完善的。Spectrum analysis of flocs diameter in the changjiang estuary
長江河口細顆粒泥沙絮凝體粒徑的譜分析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。The floe settling velocity of sediment particles is taken as the function of current velocity, salinity and suspended sediment concentration
泥沙顆粒絮凝沉降速度考慮了流速、鹽度、含沙濃度的影響。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 ,參18The 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 studies on flocculation parameters of high turbidity water are completed more integrally, including establishing the equation about the relationship between the covering ratio of flocculent on silt surface 6 and the surface area of silt particles s. the re - concentration law of thickener underflow is studies
建立了一定沉速下,泥沙固體顆粒表面覆蓋率與泥沙顆粒表面積s間的函數關系式;較系統地完成了高濁度水絮凝參數的研究。研究了高濁度水沉澱池排泥的再濃縮規律。On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula
應用透光率脈動檢測技術和光散射顆粒粒度分析儀( pda ) ,通過理論分析,將pda的輸出信號之一? ?平均透光強度(對應于dc值)作為原水的特性表徵參數, dc值可以同時反映顆粒濃度和比表面積因素的影響,試驗結果證明, dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系: dc = cs _ p ~ d ,式中c 、 d為經驗系數,進而得到了以dc值為參數的高分子絮凝劑投藥量公式: d = f ( dc ) = e ( dc ) ~ f ,式中: e 、 f為經驗系數,平均相關系數達0 . 981 ,利用所建立的公式,建立了前饋? ?后饋聯合控制的在線自動投藥模型。Effect of cacl2 on fine sediment flocculation and settling in still water
2對細顆粒泥沙靜水絮凝沉降的影響Preliminary study on the effect of nacl on fine sediment flocculation and settling in still water
對細顆粒泥沙靜水絮凝沉降影響初探Effects of organic matter on flocculation and settling properties of fine sediment in still water
有機質對細顆粒泥沙靜水絮凝沉降特性的影響Effect of nacl concentration on dynamic model of fine sediment flocculation and settling in still water
對細顆粒泥沙靜水絮凝沉降動力學模式的影響Flocculation and settling properties of fine sediment
細顆粒泥沙的絮凝沉降特性The results showed that the rubber latex particles separated the clay into nanometer units, accompanied with the competition between separation of rubber latex particles and re - aggregation of single silicate layers upon addition of flocculant during the process of co - coagulating, while the intercalation of rubber molecules into clay galleries did not occur
結果表明,在加入絮凝劑使橡膠乳液黏土水懸浮液共凝聚的過程中,由於存在膠乳粒子對黏土片層的隔離作用與在混合液中分散的黏土單片層的重新聚集作用的競爭,因此,在絮凝物中,橡膠大分子將黏土片層隔離成納米分散單元(包括單片層和多片層的聚集體) ,在多片層的黏土聚集體層間沒有橡膠大分子插入。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。Research on flocculation setting of high density fine particle coal slurry
高濃度細粒煤泥水的絮凝沉降研究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。The mean diameter increases with the increase of alum dose, but the fractal dimension does not vary. however, extremely high dose of sluminum results in an increase of floc diameter but a decrease of the fractal dimension. the main reason is the sweep floes is too loose in their structure, and ca n ' t resist the shear force
隨著投藥量的增大,絮凝體分形維數的變化較小,但絮凝體平均粒徑顯著增加;當投藥量過高時,網掃絮凝作用下的絮體結構鬆散,抗剪切能力差,具有較小的平均粒徑和分形維數。Effects of alcl3 on fine sediment flocculation and settling
3對細顆粒泥沙絮凝沉降的影響Effects of alcl3, mgcl2, cacl2 and humus on the flocculation of fine sediments in the high - turbid system of the changjiang estuary
2和腐殖酸對高濁度體系細顆粒泥沙絮凝的影響分享友人