Polyferric sulfate is an inorganic polymer flocculant with superior performance. It is a light yellow amorphous powder solid in shape and is easily soluble in water. The 1:10 (mass) aqueous solution is red brown transparent solution with hygroscopicity. PFS is widely used in purification treatment of drinking water, industrial water, various industrial wastewater, urban sewage, sludge dewatering, etc.

[Product Features]

The new iron salt inorganic polymer flocculant is mainly used for water purification with excellent effect, good water quality, no harmful substances such as aluminum, chlorine and heavy metal ions, no water transfer of iron ions, non-toxic, harmless, reliable, turbidity removal, decolorization, deoiling, dehydration, sterilization, deodorization, algae removal, COD, BOD and heavy metal ions removal in water, etc. It is also used for industrial wastewater treatment, such as printing and dyeing wastewater, and is also widely used in casting, paper making, medicine, leather making, etc.

Compared with other inorganic flocculants, polyferric sulfate has the following characteristics:

1. New type iron salt inorganic polymer flocculant;

2. Excellent coagulation performance, dense alum and fast settling speed;

3. The water purification effect is excellent and the water quality is good. It does not contain harmful substances such as aluminum, chlorine and heavy metal ions, nor does it contain water phase transfer of iron ions. It is non-toxic,

Harmless and reliable;

4. Obvious effects of turbidity removal, decolorization, deoiling, dehydration, sterilization, deodorization, algae removal, and removal of COD, BOD and heavy metal ions in water;

5. The pH value range of the adaptive water body is 4-11, and the preferred pH value range is 6-9. The pH value and total alkalinity of the purified raw water change slightly,

Less corrosive to treatment equipment;

6. The purification effect of micro polluted, algae containing, low temperature and low turbidity raw water is remarkable, especially for high turbidity raw water;

7. The dosage is small, the cost is low, and the treatment cost can be saved by 1:5-1:2.

Product Application

Polymeric ferric sulfate In the treatment of rare earth industrial wastewater: for example, the device keeps a certain distance between the surface of the micro solid particles of wastewater and the high concentration ionic membrane, greatly reducing the harmful substances and the membrane surface, which has the opportunity to avoid pollution on the membrane surface, and the polyferric sulfate improves the excessive circulation of water; This process not only separates and enriches the wastewater of rare earth extraction process with high concentration of ammonium chloride, and recovers the wastewater after the rare earth industry standard, but also reduces the recovery of raw materials for rare earth industry production through the electrolysis process and solar energy for a successful recovery of hydrochloric acid and ammonia reactors, as well as the use of fuel cells to recover energy, The cost of treating a large amount of wasted water is 40 yuan, 1600 tons/day, including 100g/L ammonium chloride. Through this process, the first generation of hydrochloric acid and ammonia water can achieve a profit of 110000 yuan, which is not only for the country's sewage treatment and disposal reduction, stability and harmless goals; Strictly control the content of heavy metals and toxic, polymerized ferric sulfate harmful substances in rare earth industrial wastewater; On the premise of economic recovery, use the energy and resources of waste water and polymerized ferric sulfate waste gas to achieve the purpose of waste water and waste gas treatment and comprehensive utilization, energy conservation and emission reduction, and circular economy development.

Polymerized ferric sulfate uses the combination of dielectric electrophoresis technology and osmotic membrane separation technology to treat wastewater for reuse, realize technological innovation and scientific and technological progress in wastewater treatment, give full play to the investment and operation efficiency of equipment, adapt to China's national conditions, and meet the characteristics of new wastewater treatment technology, new technology and new equipment of polymerized ferric sulfate in Inner Mongolia Autonomous Region. If the new technology is widely applied, it will improve the treatment and disposal level of industrial wastewater of mining enterprises in this area, further protect and improve the ecological environment, and promote the sustainable development of our economy, society and environment in this area.

[Technical indicators]

 

[Industrial wastewater treatment]

1. Printing and dyeing wastewater treatment, instead of traditional low-molecular-weight ferric salt and aluminum salt coagulants, compared with the characteristics of traditional coagulants with large dosage, low coagulation efficiency, aluminum ion and other residues that are easy to cause secondary pollution, the dosage of polymerized ferric sulfate is about 150ppm, its dosage is small, and the removal rate of COD and chroma is high. The better ph condition is 8.0. [2] 

2. Electroplating sewage treatment can be used as coagulant and complex breaker. The complex is mainly copper ammonia complex, which is stable in nature, pH=11, and difficult to precipitate directly with alkali, polyaluminum and other coagulants. It can also be used as reclaimed water.

3. Paper making wastewater treatment can replace polyaluminum chloride, aluminum sulfate, etc., as coagulant, and can also be used as dewatering of paper making sludge. In the white water recovery process of paper making wastewater treatment, only polyaluminum chloride can be used instead of polyferric sulfate (polymer containing strong cations).

[Precautions]

Due to different properties of raw water, on-site commissioning or beaker test shall be carried out according to different conditions to obtain better use conditions and better dosage to achieve better treatment effect.

1. Before use, put the product into the alum dissolving tank at a certain concentration (1:10-3:10), inject tap water and stir to fully hydrolyze it, stand until it turns into reddish brown liquid, then add water to dilute it to the required concentration and add coagulation. The water plant can also prepare 2-5% for direct dosing, and 5-10% for industrial wastewater treatment.

2. The dosage can be determined by production commissioning or beaker test depending on the proper amount of alum formation according to the nature of raw water. The water plant can use other dosage as reference. Under the same conditions, the dosage of this product is roughly the same as that of solid polyaluminum chloride, which is 1/3-1/4 of that of solid aluminum sulfate. If the liquid product is used originally, it can be calculated and determined according to the concentration of the corresponding agent. It is roughly based on the weight ratio of 1:3.

3. When in use, the above prepared liquid medicine is pumped into the metering tank and coagulated with raw water through metering.

4. Generally, it is prepared on the same day and used on the same day. Tap water is required for dispensing. It is normal to have a little sediment.

5. Pay attention to the hydraulic conditions and formation of alum flocs in the three stages of coagulation process.

(1) Coagulation stage: it refers to the process that the liquid medicine is injected into the coagulation pool and quickly coagulates with the raw water to form fine alum in a short time. At this time, the water becomes more turbid, which requires that the water flow can produce intense turbulence. In the beaker test, it is advisable to stir for 10-30s quickly (250-300 rpm), generally not more than 2min.

(2) Flocculation stage: it is the process of alum flower growing and thickening, which requires appropriate turbulence degree and sufficient residence time (10-15min). In the later stage, it can be observed that a large number of alum flowers gather and sink slowly, forming a clear layer on the surface. In the beaker test, first mix for about 6 minutes at 150 rpm, and then mix for about 4 minutes at 60 rpm until suspended.

(3) Settling stage: it is the settling process of flocs in the settling tank. The water flow is required to be slow. In order to improve the rate, inclined tube (plate) settling tank is generally used (preferably air flotation method is used to separate flocs). A large number of coarse alum flowers are blocked by the wall of inclined tube (plate) and deposited at the bottom of the tank. The upper layer of water is clear water, and the remaining alum flowers with small particle size and small density slowly decline at the same time, At the same time, they continue to collide with each other and become larger, and the residual turbidity remains basically unchanged in the later period. The beaker experiment should be stirred slowly for 5 minutes at 20-30 rpm, and then settled for 10 minutes to measure the residual turbidity.

6. Strengthening filtration is mainly to reasonably select the filter layer structure and filter aids to improve the removal rate of the filter, which is an important measure to improve the water quality.

7. This product is applied to the treatment of environmental protection and industrial wastewater. The method of use is basically the same as that of the water plant. It has a good effect on the treatment of raw water with high color, high COD and BOD, supplemented by auxiliaries.

8. For enterprises adopting chemical coagulation method, the original equipment does not need to be greatly transformed, and only needs to add alum dissolving tank to use this product.

9. This product must be stored in a dry, moisture-proof and heat proof place（

10. This product can only be used after being dissolved. Corrosion resistant materials shall be used for dissolution equipment and dosing facilities.

[Packaging and storage]

25kg/bag (lined with plastic bag, outer layer is plastic woven bag).

This product is non-toxic, pay attention to moisture-proof, rainproof, and avoid sun exposure.

  Reference dosage of polymerized ferric sulfate in various water treatment

 

name	Reference dosage	name	Reference dosage
Drinking Water	1:20000-1:200000	Waste water from carton factory	1:5000-1:10000
Industrial water	1:20000-1:200000	Wastewater from machining emulsified oil	1:5000-1:12000
urban sewage	1:10000-1:50000	Chemical wastewater	1:3000-1:10000
Power plant wastewater	1:10000-1:30000	Oilfield drilling wastewater	1:3000-1:10000
Coal washing wastewater	1:10000-1:30000	Paint making wastewater	1:3000-1:8000
Wastewater from iron and steel industry	1:10000-1:20000	Wool washing wastewater	1:2000-1:8000
Nonferrous mineral processing wastewater	1:8000-1:20000	Tannery wastewater	1:2000-1:6000
Metallurgical beneficiation wastewater	1:8000-20000	Printing and dyeing wastewater	1:2000-1:6000
Food industry wastewater	1:8000-1:20000	Papermaking wastewater	1:2000-1:6000
Electroplating wastewater	1:5000-1:10000	Sludge dewatering	1:100-1:1000