水处理资料超市

水处理的界的牛马

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反渗透（RO）阻垢剂可以有效的减少水垢阻塞反渗透膜孔径，保证正常的水通量和过滤效果。反渗透（RO）阻垢剂具有优良的特性：①有效控制硅的沉积和聚合；②能在很大程度上控制无机物结垢；③不会与铁铝氧化物等生成不溶解物质；④使用范围广，可用于超滤膜、纳滤膜等；⑤具有极好的溶解性和稳定性；⑥PH值在5-10这一范围内的给水非常有效。 Reverse osmosis (RO) antiscalant can effectively reduce the scale blocking the pore size of the reverse osmosis membrane, ensuring normal water flux and filtration effect. Reverse osmosis (RO) antiscalant has excellent characteristics: ① Effectively control the deposition and polymerization of silicon; ② Can control the scaling of inorganic substances to a large extent; ③ Will not generate insoluble substances with iron and aluminum oxides; ④ Wide range of use, can be used for ultrafiltration membranes, nanofiltration membranes, etc.; ⑤ Has excellent solubility and stability; ⑥ Very effective for water supply with a pH value in the range of 5-10.

    反渗透（RO）阻垢剂性能优异，亦是反渗透系统不可或缺的水处理剂，针对目前市场上多种多样的反渗透阻垢剂，如何选择成为用户首要关心的问题。在实验室中评定反渗透（RO）阻垢剂的性能，以指导现场反渗透系统运行控制的参数，进而确定性价比优越的反渗透阻垢剂是十分必要的。国内外对反渗透阻垢剂的评定方法分为静态评定法和动态评定法两大类。其中静态评定法包括碳酸钙沉积法、鼓泡法、浊度法和电导率法；而动态评定法包括给水一次通过法、全循环法、部分循环法和间歇循环法。目前反渗透阻垢剂常用的评定方法中，给水一次通过法可以最大限度地模拟现场运行工况，阻垢剂的浓度在试验过程中保持恒定。 Reverse osmosis (RO) antiscalants have excellent performance and are also indispensable water treatment agents for reverse osmosis systems. In view of the various reverse osmosis antiscalants currently on the market, how to choose has become the primary concern of users. It is very necessary to evaluate the performance of reverse osmosis (RO) antiscalants in the laboratory to guide the parameters of on-site reverse osmosis system operation control, and then determine the cost-effective reverse osmosis antiscalants. The evaluation methods for reverse osmosis antiscalants at home and abroad are divided into two categories: static evaluation method and dynamic evaluation method. Among them, the static evaluation method includes calcium carbonate precipitation method, bubbling method, turbidity method and conductivity method; and the dynamic evaluation method includes water feed once-through method, full circulation method, partial circulation method and intermittent circulation method. Among the commonly used evaluation methods for reverse osmosis antiscalants, the water feed once-through method can simulate the on-site operating conditions to the greatest extent, and the concentration of the antiscalant remains constant during the test.

    影响反渗透阻垢剂使用效果的因素有哪些呢？What are the factors that affect the effectiveness of reverse osmosis scale inhibitors? 

①药剂浓度：通常来说，浓度越大，效果越好，在相同浓度下，复合阻垢剂效果明显好于单剂；① Agent concentration: Generally speaking, the higher the concentration, the better the effect. At the same concentration, the composite scale inhibitor is significantly better than a single agent; 

②溶液浊度：浊度对阻垢剂性能的影响会根据其种类不同而有所变化。浊度对单元高分子聚合物以及多元高分子聚合物有负面影响，但对阻垢分散剂有增幅作用。一般来说，浊度越高，阻垢效果相对也好；② Solution turbidity: The effect of turbidity on the performance of scale inhibitors varies according to their types. Turbidity has a negative impact on unit polymers and multi-polymers, but it has an amplifying effect on scale inhibitors and dispersants. Generally speaking, the higher the turbidity, the better the scale inhibition effect; 

③铁离子影响：在循环水中，铁离子浓度对大部分阻垢剂均有影响，随着铁离子浓度不断增加，对碳酸钙的阻垢作用会有所下降，为了能加强阻垢作用，要尽可能降低铁离子浓度；③ Iron ion influence: In circulating water, the iron ion concentration has an effect on most scale inhibitors. As the iron ion concentration continues to increase, the scale inhibition effect on calcium carbonate will decrease. In order to enhance the scale inhibition effect, the iron ion concentration should be reduced as much as possible;

④酸碱度影响：水中酸碱含量对阻垢剂作用效果影响明显，有些阻垢剂适合酸性环境，有些则适合碱性环境，要依据具体环境来选择反渗透阻垢剂。  ④ pH influence: The acid and alkalinity content in the water has a significant effect on the effect of the scale inhibitor. Some scale inhibitors are suitable for acidic environments, while others are suitable for alkaline environments. Reverse osmosis scale inhibitors should be selected based on the specific environment.