alum coagulation 中文意思是什麼

alum coagulation 解釋
明礬凝聚
  • alum : n. 明礬 basic [cubic] alum 明礬石。n. 〈口語〉校友（＝ alumnus 或 alumna）。
  • coagulation : n. 凝固（作用）；凝結物。
  1. The resuit indicates : wheil treating siightiy polluted source water of xiang rivet, optimized coagulation will improve the effect of reducing organics remarkably ; gac has good effect in reducing the dbpfp and organics of xiang rivef, but the effect in reducing dbp is more obviously ; the process of " improving gac by optimized coaguiation " can not only has a wonderful result of reduction in dbppp and organics, but also improve the effect of gac evident1y and decreasing the capital cost for a gac facility ; although optimized coagulation increase the quantity of alum dose, but the level of aluminum of treated water will not beyond the standard level ; different processes will have different resu1ts in lessening the amount of organics and dbp, so we should adopt treatment process by considering the requirements of treated watel

    試驗結果表明：在對受到微污染的湘江源水的處理時，強化混凝工藝對于去除有機物具有比較明顯的作用；活性炭吸附技術處理湘江源水時，其對去除水中消毒副產物前體具有明顯的效果，對去除水中有機物效果也很好，但對消毒副產物的去除效果好於對有機物的去除效果；活性炭與強化混凝聯用工藝不僅能更有效地去除水中有機物以及消毒副產物前體，還能增加活性炭的吸附性能，從而減低費用；雖然強化混凝投加了比傳統混凝多的混凝劑，但並不會使出水中鋁離子濃度超標；不同工藝對水中有機物和消毒副產物的去除效果各不相同，應根據出水要求而選擇不同的處理工藝。
  2. At ph 5. 0, the highest toc removal is reached at zero potential ; with the increase of alum dose, charge reversal is observed and sweep coagulation becomes the dominant mechanism

    在中性條件下，隨著混凝劑量的增加， zeta電位始終不發生逆轉，網捕作用一直是主要的作用機理。
  3. At the same time, theory of effect on pre - oxidation was analyzed. the experiment show that various oxidants had positive impacts of different degree on alum coagulation

    試驗結果表明:盡管使用的混凝劑本身的處理效果有差別，但各種氧化劑對混凝效果都有不同程度的促進作用。
  4. Effect of pre - oxidation on alum coagulation evaluated through the change of turbidity 、 toc and uv254. the emphasis on some impact factors such as the kind or variety of oxidant and oxidant contact time were studied, with discussing the influence of ph and solution temperature

    試驗中先投加氧化劑，再投加混凝劑，充分沉澱后，檢測出水濁度、 toc和uv254 ，通過這些指標變化來評價預氧化對混凝效果的影響。
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