PAM concentration option to consider the following factors: 1. Mixing tank small and large daily dosing is recommended with a little bit strong (eg 0.2%). (2) high molecular weight polymers, it is recommended to slightly dilute with several (eg 0.1%). 3 polymer solution put into the sewage, as a result of dispersion of the device is not very good reasons, it is recommended with some of the slightly thin. Under normal circumstances: before you use a given concentration of the solid solution then use the alternate so quickly to be effective. Wherein a series of concentrations of CPAM 0.2%; APAM and NPAM series of concentrations of 0.1%. Alternate solution for the two days of storage, you should try to do now with the existing. Six, when used Note: 1, the operator should wear protective equipment, wash with water after skin contact, the use of on-site if a small amount of leakage can be a lot of water rinse. 2, the preparation of APAM, CPAM, NPAM series polyacrylamide aqueous solution should be in enamel, zinc, aluminum or plastic bins for non-ferrous containers in the preparation and storage. 3, the dissolution should pay attention to the product evenly and slowly added with stirring and heating measures dissolver should avoid knot large brick; suitable solution prepared at room temperature, and should avoid prolonged severe mechanical shear. Doing so may cause polymer degradation, reduce the effect. 4, polyacrylamide and its family of products for medium range of PH value 1-14. Polyacrylamide selection problem: First, according to the water quality, there is the PH value according to the election, in the PH less than 7.5 or less, need to use a cationic polyacrylamide, between 6.5 and 7.5 with a non-ionic, anionic available above 7, Whitewater generally with a weak cationic polyacrylamide better. Acid conditions require use of ferrous sulfate or aluminum chloride, aluminum sulfate to adjust the polymerization PH value. Common Problems Q: polyacrylamide and PAC can use it? A: The treatment of sewage, some sewage using a single flocculant not achieve results, you must use two kinds of combination, the use of inorganic and polyacrylamide flocculant PAC sewage treatment will achieve better results, but the time to pay attention to add agents order, the order is not correct, but also fail to effect. Polyacrylamide flocculant and other mixed order of addition: You must pay attention to their sequence and dosing intervals! PAC and PAM is to make joint use of PAC in the first complete and the charge / colloid destabilization after the formation of small flocs, and further increase the floc size is conducive to fully precipitate. Since PAC PAC reaction time is very short, so need a strong mixing after adding, PAM longer duration of action, mixed note after the first strong weak - strong first is to mix evenly in order to avoid damage to the weak floc! Polyacrylamide flocculant belong, PAC belong coagulant, under normal circumstances is to add coagulant coupled with polyacrylamide, but to be safe, we recommend that you add through experiments to determine the effect of the order! Dosing point, dosage, dosing time and the need to experiment to determine mixing intensity, remember do not put them to use both agents together, otherwise it will affect the results, increasing the cost. Unit Name: Beijing Open Source Bi Environmental Engineering Co., Ltd. Company Address: Chaoyang District, Zhuang Zi skin Dongba House Village Industrial Zone Zip Code: 100018 Contact: Manager Li Mobile: 15001362482 Tel 010 -57127953 Fax Number: 02 - 82845391 Website: http://www.kbyyaoji.com E-mail: lihongmin2013@163.com