Advantages and Significance of Using Poly aluminum chloride to Treat Agricultural Wastewater Advantages and Significance of Using Polymeric Aluminum Chloride to Treat Agricultural Wastewater Due to the relatively prosperous agricultural development in our country, a lot of wastewater occurs in these industries in our country. Therefore, a wide range of disadvantages of agricultural wastewater have also been formed. The wastewater that occurs in the agricultural industry is mainly cultivated in farmland, farms, agro-products processing, etc. Most of the wastewater that occurs contains high concentration of organic pollutants, which is poor in biodegradability and even agricultural sewage is also toxic. Since these pollution elements can cause great damage to the environment, it is of great significance to conduct research on the effective treatment plan regarding the agricultural development and environmental protection in China. The advantages of using PAC to dispose of agricultural wastewater lie in the fact that the characteristics of agricultural wastewater with high phosphorus and high concentration of ammonia nitrogen are discussed and found that it can be disposed by physical and chemical methods and degraded organic pollutants in agricultural wastewater by micro- effect. And add polyaluminum chloride and other efficient polymerization flocculant can also wastewater on the heavy metals, suspended solids, small particles adsorption - flocculation deposition, but also for conditioning pH, so as to significantly reduce the COD with Chroma, but also improve the biodegradability of sewage, ammonia can also be removed to achieve the desired effect. Polyaluminum chloride in agricultural wastewater treatment methods: 1. Solid PAC polluted shape, with the advantages of transport convenience, does not require tanker, the defect is the use of the need to dilute, add job intensity; 2. Liquid Polychlorinated Chloride Aluminum is not boring shape, there is no need to dilute, loading and unloading easy to use, the advantages of relatively cheap price, the drawback is the delivery of tanker demand, unit delivery costs (equivalent to 2-3 tons of liquid per ton of liquid). This article information from the filter water purification released from http://www.gyzhenyu.com finishing.