絮凝
- 基本解释 (translations)
- flocculate · flocculation · flocculated · flocculates · flocculatidn
- 更多网络例句与絮凝相关的网络例句 [注:此内容来源于网络,仅供参考]
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The flocculation has a very important role in water treatment process,and the extent of perfect of flocculation process directly affect the treatment effect of the following treatment. Traditional flocculation theory was based on the hypothesis that colloid was spherical in water, but in fact the characteristic of shape of colloid and Floc. in water has a great influence on the flocculation effect.
絮凝过程在水处理领域具有重要的地位,絮凝过程的完善程度影响着后续工艺的处理效果,传统絮凝理论都是在假设絮体球形的基础上开展的,事实上水中颗粒物和絮凝体的形状特征对絮凝效果有很大的影响,研究这些形体特征对絮凝过程的影响有助于更加准确的了解絮凝过程。
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Three topics were discussed:(1)Mechanisms of coagulants and flocculen t,and the experimental methods of process study;(2)Development of coagulants and flocculent;(3)Researches on improvement of coagulants and flocculent efficiency, process optimization and on-line monitoring and controlling as well.
文摘:分三部分论述了90年代以来国内外混凝剂和絮凝剂研究的主要进展:1混凝、絮凝的微观机理及其行为的研究成果和实验研究手段;2混凝剂和絮凝剂的开发;3混凝和絮凝方法在废水处理中的净化效率的提高、条件优化和在线监控等。
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Results show that floes' VC and D at the surface water were closely related to current velocity; and the peaks of VC lag those of the current velocity. The lag variation during ebb and flood tides is 10-30min and 30-50 min, respectively. Current velocity at 50 cm/s is a turning point of D vs. vertical average current velocity, before the point, Dm increases with current velocity, and decreases after the point. Similarly, VC at 75μl/L becomes a critical point in the surface water, below the point, D increases with VC, and above the point, D stabilizes.Δp is D dependent, larger floes have much lower Δp than smaller floes. Both D and Δp of floes affect ω. In the surface water during spring tide and neap tide, a power exponent relationship exists between Δp and D, and ω and D.
研究表明:①长江口徐六泾表层絮凝体体积浓度主要受水流流速影响,再悬浮现象明显,体积浓度过程线滞后流速过程线,落潮期间滞后10-30min,涨潮则滞后30-50min;②小于一定流速时絮凝体平均粒径随流速增大而增大,大于一定流速时絮凝体平均粒径则随流速增大而减小,徐六泾夫、小潮表层絮凝体在50cm/s的垂线平均流速时出现平均粒径与垂线平均流速关系的转折;③徐六注大、小潮表层絮凝体平均粒径在体积浓度75μl/L时出现平均粒径与体积浓度关系的转折,体积浓度小于75μl/L时粒径随体积浓度增加而增大,超过75μl/L时粒径随体积浓度的增加变化不明显;④絮凝体有效密度由粒径大小控制,粒径大,有效密度小,反之亦然,粒径和有效密度共同决定絮凝体静水沉速,有效密度和沉速与平均粒径之间均存在良好的幂指数关系。
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Complex flocculant PASS has the abilities of neutralizing electric charge and flocculating. The experimental results show: it is feasible that the emulsion wastewater can be treated into qualified discharging water. The dosage of flocculants and pH value have been optimized by coagulation experiments. In addition the mechanism for emulsion wastewater has been studied by using Perron timed complex colorimetric method and neutralization method. Aiming at characteristics of high concentration and high CODCr emulsion wastewater the technology that emphasized on coagulation-precipitation twice has been proposed in this paper.
本文采用复合型絮凝剂处理乳化液废水,研究结果表明,乳化液废水的处理过程包括凝聚脱稳及吸附絮凝,其中絮凝是决定混凝效果的关键性步骤,复合型絮凝剂聚硅酸硫酸铝是一种既具有较强的电中和能力,又具有优异的絮凝性能的无机混凝剂,通过对乳化液废水药剂筛选实验,实验结果表明聚硅酸硫酸铝对乳化液废水是比较合适的混凝剂,并确定了药剂的最佳投药量、最佳pH值条件等操作参数,针对乳化液废水的特点,综合国内外研究成果和经验,提出了二次混凝沉淀处理方案,该方案具有处理设备结构简单、运行管理简便等优点。
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Organic and compound cation garrulous coagulates the agent is to use chemical law compound a kind of new-style cation garrulous coagulates agent, belong to domestic and international initiate, with other and groovy drug photograph comparing has 5 big advantages: The photograph such as aluminium of as aggregate as commonly used drug chloridize, aggregate and vitriolic iron, vitriolic aluminium is compared, coagulate with garrulous of polypropylene acyl amine the agent is used jointly, medical dose is little, reduce useless water treatment to expend about 20 % thereby, 30 %; Effect of processing liquid waste is good, garrulous is round settling speed is fast, make liquid waste can second birth is used, managing water natural resources; Its garrulous group is sedimentary filterability can be good, slime can reclaim inside entire plant, namely energy-saving be helpful for protecting an environment again; Corrode to equipment small; Have muti_function, have agglomeration effect already, again garrulous coagulates action and the action that aid filter, can serve as filter aid.内容来自www.ch-water.com
有机复合阳离子絮凝(使液体中悬浮微粒集聚变大或形成絮团,从而加快粒子聚沉,达到固-液分离的过程)剂是利用化学法合成的一种新型阳离子絮凝(使液体中悬浮微粒集聚变大或形成絮团,从而加快粒子聚沉,达到固-液分离的过程)剂,属国内外首创,与其他常规药剂相比具有五大优点:与常用药剂聚合氯化铝、聚合硫酸铁、硫酸铝等相比,与聚丙烯酰胺类絮凝(使液体中悬浮微粒集聚变大或形成絮团,从而加快粒子聚沉,达到固-液分离的过程)剂联合使用,药剂量少,从而降低废水处理(通过物化方法去除水中一些物质的过程)费约20%—30%;处理废水效果好,絮团沉降速度快,使废水能再生利用,节约水资源;其絮团沉渣过滤性能好,煤泥可全部厂内回收,即节能又有利于保护环境;对设备腐蚀小;具有多功能,既有凝聚作用,又有絮凝(使液体中悬浮微粒集聚变大或形成絮团,从而加快粒子聚沉,达到固-液分离的过程)作用和助滤作用,可作为助滤剂。
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Different kinds of flocculants have different capabilities. The flocculants produced by Aspergillus parasiticus is not steady for heat. The flocculating effect is best at acid conditions, and it is not acute for Ca〓. The flocculant can decolorize soluble dyestuff, even the active gorgeous red X-3B which is difficult to be decolorized, the decolor rate is 62. 1%. The flocculant produced by A-9 is steady for heat. It can flocculate Gaolin suspension well without synergistic effects of CaCl〓, and the dose is only 0.05ml/L. The obvious character of A-9's medium cultured for 3days is very viscosity, and viscosity is a mark for microorganism producing microbial flocculants.
不同的微生物絮凝剂具有不同的性能,寄生曲霉产生的絮凝剂对热不稳定,在酸性条件下絮凝效果好,对Ca〓不敏感,该絮凝剂对可溶性染料具有良好的脱色性能,即使是最难脱色的活性艳红X-3B,脱色率也达到62.1%。A-9产生的絮凝剂对热稳定,絮凝高岭土悬浮液时用量小,仅为0.05ml/L,且不需添加CaCl〓等助凝剂,明显优于其它微生物絮凝剂。A-9菌株培养3天的培养液的明显特征是粘性高,试验发现培养液的粘性与微生物絮凝剂性能有较好的对应关系,因此培养液的粘性可以作为微生物产生絮凝剂的重要标志。
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The flocculation could reach 97.0.% after 3 days culture.The microbial flocculants produced by Serratia ficaria are excreted out of the cell, and the flocculants are mostly distributed in zymolytic medium. The flocculation and Zeta potential experiments were made.
无花果沙雷氏菌产生的絮凝剂,主要分布于发酵液中,对其进行提取纯化,通过絮凝过程中高岭土Zeta电位的变化及絮凝剂的组成对絮凝剂的絮凝特性及絮凝机理进行探讨。
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The main research contents in this thesis mainly study its flocculently active: separating the flocculently active microbial strain of EM and the best inoculation quantity of EM and flocculant character of EM.
本文对EM的絮凝特性进行了以下两方面的研究:1通过增殖培养和定向培养试验,筛选出EM中絮凝剂产生菌;2通过絮凝试验,探讨筛选出絮凝剂产生菌絮凝剂合成的影响因素和絮凝能力的影响因素。
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Its rule of change was obtained. On the basis of other studies, the flocculation kinetics and flocs structure was studied. 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 flocs number and size during flocculation of Yellow River's loess particles without using empirical parameters. The TEM and SEM were used to obsever flocs in the study of floc structure. The flocculation was divided as flocculi, floc and floc aggregate. The flocs structure model was established by assumption that particles position in floc accords with tetrahedron. The fractal dimension of model and experimental flocs was found to be coincident. So the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent.
最后,本文还对絮凝动力学和絮体结构进行了研究,在前人研究的基础上,针对高分子絮凝黄河泥沙,对絮凝过程作了一些符合试验条件的假设,建立了颗粒碰撞频率表达式,应用了颗粒数量平衡方程,从而建立了絮凝过程的动力学生长模型,模型计算结果与试验数据对比表明,二者趋势一致,在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程;对絮体结构的研究中,应用扫描电子显微镜和透射电子显微镜对絮体进行了观察,将絮体分为絮粒、絮团和絮网三个不同的生长阶段,通过假设颗粒结合位置符合正四面体,建立了絮体结构模型,计算得到的模型絮体分形维数基本与试验中的实际絮体相符,在一定程度上能眵反映高分子絮凝黄河泥沙生成的絮体结构。
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Its rule of change was obtained.On the basis of other studies,the flocculation kinetics and floes structure was studied. 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
最后,本文还对絮凝动力学和絮体结构进行了研究,在前人研究的基础上,针对高分子絮凝黄河泥沙,对絮凝过程作了一些符合试验条件的假设,建立了颗粒碰撞频率表达式,应用了颗粒数量平衡方程,从而建立了絮凝过程的动力学生长模型,模型计算结果与试验数据对比表明,二者趋势一致,在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程;对絮体结构的研究中,应用扫描电子显微镜和透射电子显微镜对絮体进行了观察,将絮体分为絮粒、絮团和絮网三个不同的生长阶段,通过假设颗粒结合位置符西安建筑科技大学博士学位论文合正四面体,建立了絮体结构模型,计算得到的模型絮体分形维数基本与试验中的实际絮体相符,在一定程度上能够反映高分子絮凝黄河泥沙生成的絮体结构。
- 更多网络解释与絮凝相关的网络解释 [注:此内容来源于网络,仅供参考]
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deflocculator:反团聚机 反絮凝机 反絮凝离心机
deflocculation 反团聚作用 反絮凝作用 | deflocculator 反团聚机 反絮凝机 反絮凝离心机 | defloratedplant 花谢植株
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floc:絮凝体
简言之,絮凝是指"微絮凝体"(microfloc)再通过机械或水力搅拌进一步聚集成肉眼可见的大"絮凝体"(floc). 在水处理工艺上与之相对应的两个阶段分别为快速混合和絮凝. 对于不同的水处理工艺,混凝剂的投加量也不相同. 例如,
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floc:絮凝物; 絮状沈淀
絮凝物;絮状沈淀 floc | 絮凝(作用) flocculation | 絮凝作用;结絮作用 flocculation
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floc test:凝絮试验;絮凝试验
flocculant 絮凝剂;凝结剂 | floc test 凝絮试验;絮凝试验 | floc point 絮凝点
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floc test:絮凝试验,凝絮试验
floc point 絮凝点 | floc test 絮凝试验,凝絮试验 | floc-forming chemical reagent 絮凝剂
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floc unit:絮凝体
floc test 絮凝试验 | floc unit 絮凝体 | floc 使絮凝;絮凝物
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flocculate:絮凝,絮聚
flocculant aid 凝聚助剂,絮凝助剂 | flocculate 絮凝,絮聚 | flocculating agent 絮凝剂,絮聚剂
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UGL Flocculator structure, flocculator:絮凝器构筑物,絮凝器
UGK Flocculant mixing chamber 絮凝剂混合室 | UGL Flocculator structure, flocculator 絮凝器构筑物,絮凝器 | UGN Treated water basin 清水池
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flocculating agent:絮凝剂,絮聚剂
flocculate 絮凝,絮聚 | flocculating agent 絮凝剂,絮聚剂 | flocculation 絮凝(作用),絮聚(作用)
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Floccules:絮凝物、絮凝块
flocculating agent絮凝剂 | floccules絮凝物、絮凝块 | Fluidextract流浸膏