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The model of folded plate flocculator is the test object in this paper. Using the the mechanism and dynamic of coagulation precipitation, vortex of fluid of folded plate flocculator impacting on the coagulation process is studied by test, numerical simulation and theoretical analysis.

论文以折板絮凝池模型为试验对象，结合絮凝机理，采用试验测试、数值模拟及理论分析相结合的方法，对影响絮凝沉淀过程的折板絮凝池中水流涡旋进行了研究。

Microbial flocculent produced by microbe is widely used to treat wastewater and separation process in industry.

微生物絮凝剂是由微生物产生的有絮凝活性的代谢产物，广泛应用于污水处理及工业分离过程，其性能优于无机絮凝剂和有机高分子絮凝剂。

Effect of charge and molecular on flocculent performance of Polyacrylamide and cationic PolyvinylformamideC...

研究结果表明：(1)pH值对废水的色度、浊度以及电荷性质有很大的影响，从而对絮凝剂的絮凝性能产生影响；(2)C-PNVF在酸性条件下，电荷密度越低絮凝效果越好：中、碱性条件下，则相反；(3)分子量对各种电荷性质的PAM的絮凝性能的影响规律各不相同。

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。

Moreover,the flocculation settlement curves of the lignin locution were determined at deferent temperatures under the condition of the polyaluminum ferric chloride flocculation,the sense of the inflexion point of the curve was discussed,and the acaivation energy of the colloid solution flocculatiov was eltimated,which corresponds to the potential-energy between sol particles accordin.

用传统的化学动力学方法讨论了温度对絮凝过程的影响，测定了木质素溶液在不同温度时被聚氯化铝铁絮凝的絮凝沉降曲线，讨论了曲线上拐点的意义，并估算出该胶体溶液絮凝时的活化能，它相当于DLVO理论为胶体粒子间的势能能垒φm，实验得出φm≈16.5k

Using pickling liquid wastewater of hydrochloric acid,iron scurf and aluminiferous mine as raw materials,a series of poly-aluminum-ferric-silicate-chloride which has different molar ratio of Si:Al:Fe was prepared.

利用天津某钢厂的工业废料——盐酸酸洗废液、铁屑和含铝矿等为原料，合成了具有不同摩尔比的无机高分子絮凝剂聚硅酸氯化铝铁，采用Zeta电位测定法分析了产品在其水解溶液中的带电情况，并通过絮凝实验对絮凝剂的絮凝机理作了初步分析。

Compared with other flocculants, the polymeric ferric sulfate has much better performance and characteristics, such as better adsorption, bridge erection, flocculation, floc formate fast, not easy to breaking, better repolymerization and weak corrosion. So it was widely used in the wastewater purification and treatment which contains industrial wastewater, urban sewage, water for industrial use and potable water etc.

与其它的絮凝剂相比较，聚合硫酸铁不但具有较强的吸附、架桥、絮凝沉淀性能，而且在水处理过程中有生成絮体速度快、絮体不易破碎、重聚性能好、腐蚀性小等特点，因此广泛用于工业废水、城市污水、工业用水以及生活饮用水等的净化处理。

By SEM, different component have great effect on flocculent structure. Zn have trend to form network, Al and Mg form sheetlike to around. Structure characterizations of PSAZ and PSMZ is different of common IPF, it has nicer flocculation efficiency and stability.

扫描电镜分析表明不同组分对絮凝剂结构具有较大的影响，发现增加锌的含量，有利于生成网状物，铝、镁的向四周发展的片状结构，聚硅酸铝锌和聚硅酸镁锌的结构不同于一般的絮凝剂，其特殊的片状结构决定了絮凝的优良的絮凝效果。

Shear-induced sand bridging flocculated settling experiment is conducted for Yellow River and the result indicates that the lifetime of optimal structure will be limited for a certain duration.

黄河泥沙架桥絮凝试验研究表明，剪切絮凝条件下泥沙絮凝体的最佳絮凝结构只能维持一段时间。

By the theoretical analysis of battings' thermal resistance and the test of battings' thermal resistance at different compression condition, some advise is given to the theoretical model of battings' thermal resistance.

此外，本文通过对絮片热阻的理论分析，对前人建立的絮片热阻的理论模型提出了建议，认为絮片热阻模型的推导必须考虑接触热阻，建立了絮片传热热阻的物理模型。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。