Polymeric ferric sulfate morphological traits is light yellow amorphous powder solid, easily soluble in water, 10% (by weight) aqueous solution of a reddish brown transparent solution, moisture absorption. Polymeric ferric sulfate is widely used in the purification of drinking water, industrial water, industrial wastewater, urban sewage, sludge dewatering, etc.. Polymeric ferric sulfate and other inorganic flocculants compared with the following features: a new, high-quality and efficient iron salts of inorganic polymer flocculant; excellent coagulation performance, alum dense settlement rate; 3. Purification effect excellent, good water quality, does not contain aluminum, chlorine and heavy metals and other harmful substances, nor iron ions aqueous phase, non-toxic, harmless, safe and reliable; 4 turbidity removal, bleaching, de-oiling, dehydration, sterilization, deodorant, algae, removal of water COD, BOD and heavy metal ions and significant effect; 5. adapt to water PH value range 4-11, the best range of PH value 6-9, the purified raw water PH value and total alkalinity variation on the corrosion of processing equipment; micro-pollution, including algae, low temperature and turbidity of raw water purification effect is significant, plus the effect of high turbidity raw water purification; low dosage, low cost , the processing cost savings of 20% -50%. The of polyferric application PFS in the rare earth industrial wastewater treatment: for example, the apparatus so that the wastewater tiny solid particles and a high concentration of the ion-exchange membrane surface and always keep a certain distance, greatly reduce the harmful substances and the surface of the film has the opportunity to avoid the film surface pollution, PFS improve the water cycle over; This process is not only rare earth extraction process wastewater separation and concentration of the high concentration of ammonium chloride, rare earth industry standard wastewater recycling, and through the process of electrolysis and solar for a successful hydrochloric acid and the recovery of the ammonia reactor, PFS by the recovery of the rare earth industry, the production of raw materials, but also through the use of fuel cell energy recovery added to deal with a lot of waste water costs $ 40, and 1600 tons / day, containing 100 g / L ammonium chloride, through this process, the generation of hydrochloric acid and ammonia water can be a profit of 11 million yuan, which is not only the target of the country's sewage treatment and disposal reduction, stability and harmless; strict control of rare earth industry heavy metals and toxic wastewater PFS content of harmful substances; under the premise of safety, environmental protection and economic recovery, wastewater PFS exhaust gas energy and resources to achieve wastewater, waste gas treatment and comprehensive utilization, energy conservation, to achieve the purpose of the development of circular economy. Polymeric ferric sulfate electric media electrophoresis and permeable membrane separation technology combined processing wastewater reuse, wastewater treatment technology innovation and scientific and technological progress, and give full play to investment and operational efficiency of the equipment, suitable for China's national conditions, in line with the characteristics of the Inner Mongolia Autonomous Region wastewater treatment technology, PFS new technology and new equipment. New technology is widely used to improve mining enterprises in the area of ??industrial wastewater treatment and disposal level PFS protect and improve the ecological environment, promote our economic, social and environmental sustainability in the region. Flocculation technology of polymeric ferric sulfate treatment of oily wastewater characteristics because of its adaptability to remove emulsified oil and dissolved oil as well as some difficult biochemical degradation of complex organic polymer characteristics are widely used in the treatment of oily wastewater. Commonly used flocculants inorganic flocculants, organic flocculants and composite flocculant three categories. Inorganic polymer flocculant PAC, PFS and other lower molecular weight inorganic coagulant for the treatment effect is good, the price is low and the consumption of high efficiency has been widely used.