Polyacrylamide treatment of sand washing wastewater Sand washing wastewater refers to wastewater containing suspended matter, heavy metals and other pollutants generated by the washing of sand and gravel in construction sites, quarries, mines and other places. This kind of wastewater will have a great impact on the environment and human health. In order to solve …
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Classification of polyacrylamide Polyacrylamide can be divided into nonionic, anionic and cationic polyacrylamide. Non-ionic: (NPAM), neutral, uncharged. ① Neutral or acidic sewage is more commonly used, such as mineral processing wastewater, stone factories, engineering mud, and printing and dyeing factories. ② The flocculation effect mainly relies on a large number of molecular groups on the …
Micro-electrolysis technology is currently an ideal process for treating high-concentration organic wastewater, also known as internal electrolysis. In a nutshell, it uses the 1.2V potential difference generated by the micro-electrolysis material filled in the wastewater to electrolyze the wastewater without electricity, so as to achieve the purpose of degrading organic pollutants. When the system is …
Coagulants and flocculants for algae removal Adding aluminum sulfate as a coagulant can remove turbidity and algae at the same time. When the number of algae in the effluent is less than 1000/mL, the amount of coagulant required is much greater than the amount required when the turbidity is less than 3 NTU. The reason …
This week, our technicians went to the coal washing plant to conduct on-site polyacrylamide selection experiments on coal mine wastewater. We’re one of the top suppliers of water treatment chemicals in China. Our factory was founded in 1999, the company has successively built three major production bases covering an area of 58,000 square meters, …
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Characteristics of urban domestic sewage and common treatment chemicals. 1. Characteristics of urban domestic sewage a. Large changes in water quality: Due to the different scale and nature of urban industries and the different proportions of domestic sewage, the water quality of urban sewage varies greatly. The quality of urban sewage varies greatly not only …
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Polyacrylamide (PAM) dosing conditions Dissolution conditions: ○ Water quality: The water used to dissolve PAM should be clean, neutral, and free of salt impurities. Avoid using water containing iron ions or other impurities that may react with PAM. ○ Temperature: It is usually recommended to dissolve PAM between 5℃ and 60℃. Too low a temperature …
5 major misunderstandings in the selection of polyacrylamide (PAM) 1: The larger the molecular weight, the better the effect Many users mistakenly believe that the higher the molecular weight of PAM, the better the flocculation efficiency and treatment effect. However, in fact, the best flocculation effect under different water quality conditions may correspond to a …
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Polyacrylamide (PAM) dosing conditions Dissolution conditions: ○ Water quality: The water used to dissolve PAM should be clean, neutral, and free of salt impurities. Avoid using water containing iron ions or other impurities that may react with PAM. ○ Temperature: It is usually recommended to dissolve PAM between 5℃ and 60℃. Too low a temperature …
How to accurately select the type of PAM flocculant in sewage treatment? Suspended solids (SS) and turbidity: For sewage containing a large number of fine, difficult-to-sediment suspended particles, high molecular weight, high hydrolysis degree anionic PAM should be selected, because it has good bridging adsorption and net capture effects, and can effectively condense and precipitate …
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