Water clear, transparent water, water green, water Biqing Beijing Environmental Protection Technology Co., Ltd. Office 010-57193076-- phone 13436502885-- fax 010-80570010-- qq457423671 Guoshao Jun company network http://www.bjsbqhb.com free provide samples, technical support, service tracking, your satisfaction, my pleasure ......... dedicated polyacrylamide sludge dewatering Caution: 1, floc size: the floc is too small will affect the rate of drainage, floc floc constraints make much more water and reduce mud biscuits. After selecting the molecular weight polyacrylamide can adjust the size of the floc. 2, sludge characteristics: The first point to understand the source of sludge characteristics and composition, proportion. Depending on the nature of the different sludge can be divided into two kinds of organic and inorganic sludge. CPAM for disposal of organic sludge, relative anionic polyacrylamide flocculant for inorganic sludge, highly alkaline when using cationic polyacrylamide, and should not use the anionic polyacrylamide highly acidic, solid content high amount of sludge is usually too big of polyacrylamide. 3, floc strength: floc under shear stability should persist without breaking. Advances in molecular weight polyacrylamide or select the appropriate molecular structure helps to progress floc stability. 4, the degree of ionic polyacrylamide: for dewatered sludge, flocculant available through different ion degrees do first small test selection, select the best suitable polyacrylamide, so that to obtain the best results flocculant, but also make the least amount of dosing, saving costs. 5, dissolved polyacrylamide: Good to be fully dissolved flocculation. Sometimes needs to speed up the dissolution rate, then progress can be thought of polyacrylamide concentration of the solution. In the sludge dewatering stage mostly cationic flocculants used directly, but some also use inorganic and organic pharmaceutical compound used agents, as well as special sludge will be used to add a similar counter ions to aid coagulation agents pretreatment in order to achieve sludge dewatering. The key lies in the quality of flocculant flocculant selection, even the best selection of flocculants as bad, good and bad flocculant flocculant is no different. The second step is to dissolve and aging, aging is completely direct impact on its dosage. Another good or bad depends on the characteristics of flocculant sludge, sludge with different different flocculants have a big difference, when the sludge dewatering, the amount of flocculant is added, typically 3-5kg (oven dry mud) . Cationic flocculant and water ratio is generally 1-2: 1000 (bubble concentration), and molecular weight flocculant is good or bad is not only relevant, as well as ion degree, flocculants molecular structure, dissolution rate, flocculation speed, dispersion, etc. related.