Molecular mass of PFS and PFS activity of molecular structure and shape and brought the group has an impact. In general, the molecular weight, the higher flocculating activity; linear high molecular flocculating activity, molecular branched or crosslinked more prosperity PFS, flocculation worse; PFS-producing bacteria in culture late cell surface vegetables water-based enhanced PFS activity generated higher. Surface structure and charge water treatment colloid ions also have an impact on the flocculation. Some reports noted that cationic water, especially Ca2 +, Mg2 + can effectively reduce the presence of negatively charged colloids promote "bridging" form. In addition, the presence of high concentrations of Ca2 + PFS also protect from degradation enzymes. PFS flocculation wide range of microbes, flocculation activity, and the role of extensive conditions, mostly from ionic strength, pH and temperature, it can be widely used in sewage and industrial wastewater treatment. Microbial PFS efficient, safe, does not pollute the environment advantage in the pharmaceutical, food processing, bio-product separation and other fields have great potential value. Overview of foreign microbes microbial PFS PFS commercial production began in the 1990s, because there is no secondary pollution spray PFS easy to use, attractive prospect. Such as Rhodococcus and thus prepared NOC-1 is currently found in the best microbe PFS, with strong flocculating activity, widely used in livestock waste water, sludge bulking, colored wastewater. The products of microbial PFS not been reported. PFS microorganisms including the use of microbial cell wall outlet PFS PFS was extracted, the use of microbial cell wall PFS metabolites, the direct use of PFS PFS and microbial cells obtained by cloning techniques. PFS substances produced by microorganisms glycoproteins, mucopolysaccharides, protein, fiber, DNA and other polymers, the molecular weight of 105 or more. PFS application of urban sewage microorganisms isolated from city life with sewage flocculation, efficient mixing flora degradation of sewage treated sewage COD and BOD can reach 100% removal [0. ] A class of waste building materials and waste materials processing wastewater containing high suspended solids is difficult to deal with, such as a ceramic factory waste, including waste water and glaze embryo two wastewater PFS, the former mainly contains more clay particles, which in addition to containing clay particles, there are a considerable number of glaze. When adding NOC-1 5 min, the turbidity of the embryo body water reduced from the original 1.4 to 0.043; glaze water turbidity decreased from 17.2 to 0.35; turbidity removal rates were 96.6% and 97.9%, obtained almost transparent PFS tile factory wastewater treatment Rhodococcus supernatant produced supernatant treated almost transparent. Other applications due to microbial PFS has a safe, non-toxic properties, gradually adopted in food wastewater treatment, and achieved satisfactory results. In addition, microbial flocculants can be widely used in urban sewage, hospitals and sewage, petrochemical waste, paper waste, pharmaceutical waste water and other aspects of the treatment process. Saatchi & Saatchi PFS _ _ Hangzhou PFS water provided by the water purification materials Co., Ltd. Henan Spirit. Spirit Henan water purification Material Co., Ltd. (www.gyssjs.com) strong, credible, in Zhengzhou, Henan water treatment chemicals and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Spirit into the brilliant water and you work for a better future!