絮凝反應 的英文怎麼說
中文拼音 [xùníngfǎnyīng]
絮凝反應
英文
flocculation reaction-
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。Sodium metasilicate has strong alkalinity and good buffering capacity. it can neutralize acidic dirt, emulsify grease and oil, and provide corrosion proofing to metals. it is a basic material for the detergent industry, widely used in domesticindustrial detergent, food cleaner, metal cleaner, washing carbonated drink bottles, printing aid for textile, deinking recycled paper, etc
偏硅酸鈉具有強堿性，去污力強，緩沖能力大，可中和酸性污物，使脂肪和油類乳化，對無機物有反絮凝作用，對金屬有防腐蝕作用，是洗滌業不可替代的原料，廣泛應用於家庭洗衣粉、工業洗滌劑、食品清洗劑、金屬清洗劑、酒瓶清洗劑、除油紡織印染助劑及紙張脫墨劑等。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。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。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。This text has studied two subsidence - separation means, which are flocculant and control reaction temperature method to remove the chlorine in magnesium hydroxide produced by the method of bischfite - sodium hydroxide
摘要研究了絮凝劑法及控制反應溫度法兩種沉降分離方法除去水氯鎂石氫氧化鈉法制備氫氧化鎂中的氯。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。The influencing factors such as the ratio of reactants, activation time, reaction time and reaction temperature on the synthesis were studied so as to optimize the conditions for synthesizing flocculant
研究了反應物料配比、活化時間、反應時間、反應溫度等因素對合成的影響，優化出絮凝劑合成的工藝條件。分享友人