It is worth to vigorously popularize the polyaluminum chloride produced by our company. The polyaluminum chloride has the advantages of rapid formation of flocs, compact alum, rapid settling velocity, low temperature and high turbidity raw water treatment Good effect, suitable for a wide range of pH value of water body, and can also remove organic substances, suspended solids, heavy metals, sulfides and carcinogens in the water, water-phase transfer without iron ions, decoloration, deoiling, deodorization and sterilization functions Significant, and cheap, compared with other water purifying agents, has a strong market competitiveness, its economic benefits are also very obvious, it is worth to promote the application. Due to its advantages of adaptability, non-toxicity, and double efficiency and relatively low cost compared to the traditional flocculants, it has gained wide attention in recent years and is gradually being developed into a mainstream pharmaceutical agent in the coagulation process. Among them, polyaluminum chloride is currently the most mature industrial production technology, the highest efficiency, the most widely used inorganic polymer flocculant varieties. At the same time, with PAC products as the basic raw material, but also derived a variety of series can be prepared for different water treatment complex inorganic polymer flocculant. Such as the polymerization of aluminum and iron, silicon and aluminum composite organic flocculant.