处理的洗沙废水中，絮凝沉降速度非常快，并且上清液也十分清澈。是非常有利于对水及时回用。
正如我们都知道的水中多含无机质悬浮物，因此基本上就不用考虑阳离子型pam产品。另一方面阴离子型产品的价格主要与分子量的大小有关，一般建议采用分子量1800万的产品，这样用量就会很小。但是如果低于该分子量则相应的用量会增加。
这类废水中含有大量的泥沙，如果不对其进行处理，那么便会对周边环境造成很严重的破坏，同时较大的排水量也会增加企业的用水成本，增加企业压力。但是在使用聚丙烯酰胺pam之后，废水便可以得到快速净化，处理之后的水较为干净，增加了水的回收率，从而有效的降低了企业的用水成本，尤其是在一些比较缺水的地区，这种操作方法的经济效益非常明显。
聚丙烯酰胺pam现在在市场中应用非常广泛，涉及领域也很多。比较接近的企业如选矿厂、泥石砂厂等等，这些都是为了将产生的污水处理前后尽大的提高废水回收率。
Choose which should contain sand and other debris for polyacrylamide wastewater
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Sand washing wastewater treatment gravel plant through experiments we show that adding anionic polyacrylamide can have lower the cost of access to good treatment effect, some manufacturers will test the anionic PAM products in accordance with the proportion of 0.1% is configured with a syringe into aqueous solution, with PAM solution trace to cope with sand washing in the wastewater, flocculation and settling speed is very fast, and the supernatant is also very clear. It is very helpful to reuse the water in time.
As we all know in the water, there are many inorganic suspended substances, so the Cationic PAM products are not considered. On the other hand, the price of the anionic product is mainly related to the size of the molecular weight. It is generally recommended to use a product with a molecular weight of 18 million, so that the amount will be very small. But if the amount is lower than that of the molecular weight, the corresponding amount will increase.
Such wastewater contains a lot of sediment. If it is not processed, it will cause serious damage to the surrounding environment. At the same time, a larger displacement will also increase the water cost of enterprises and increase the pressure of enterprises. But after using polyacrylamide PAM, wastewater can be obtained quickly after purification, the water is relatively clean, increased the water recovery rate, thus effectively reduces the enterprise cost of water, especially in some areas of water scarcity, the operation method of economic benefit is very obvious.
Polyacrylamide PAM is now widely used in the market and involves a lot of fields. Close to the enterprises such as concentrator, mud sand plant and so on, all of these is to produce as much as before and after sewage treatment will greatly improve the recovery rate of waste water.