Polymeric aluminum chloride is an inorganic polymer coagulant, produced by the bridging effect of hydroxide ions and the polymerization of multivalent anions, which is a large molecular weight and high charge inorganic polymer water treatment agent.

Features

• Fast floc formation, good activity and good filtration.

• No need to add alkaline additives, and its effect remains unchanged in case of deliquescence.

• Wide adaptability to PH value, strong adaptability and wide use.

• Low salt content in treated water.

• It can remove the pollution of heavy metals and radioactive substances to water.

• High active ingredient, easy to store and transport.

Functions

• Urban water supply and drainage purification: river water, reservoir water, groundwater.

• Industrial water supply purification.

• Urban sewage treatment.

• Recovery of useful substances in industrial wastewater and waste residue, promotion of coal powder settlement in coal washing wastewater, recovery of starch in starch manufacturing industry.

• Various industrial wastewater treatment: printing and dyeing wastewater, leather wastewater, fluorine wastewater, heavy metal wastewater, oil wastewater, paper wastewater, coal washing wastewater, mining wastewater, brewing wastewater, metallurgical wastewater, meat processing wastewaterf, sewage treatment.

• Paper sizing

• Sugar refining

• Casting molding

• Cloth wrinkle prevention

• Catalyst carrier

• Pharmaceutical refining

• Quick setting of cement

• Cosmetic raw materials

2.Polymerized Ferric Sulfate

Polymerized ferric sulfate morphological properties is light yellow amorphous powder solid, very soluble in water, 10% (by weight) of the aqueous solution is red-brown transparent solution, hygroscopic. Polymerized ferric sulfate is widely used in the purification treatment of drinking water, industrial water, various industrial wastewater, urban sewage, sludge dewatering, etc.

Features

• New, high-quality, high-efficiency iron salt-type inorganic polymer flocculant.

• Excellent coagulation performance, dense alum flower and fast settling speed.

• Excellent water purification effect, good water quality, no harmful substances such as aluminum, chlorine and heavy metal ions, and no aqueous transfer of iron ions, non-toxic, harmless, safe and reliable.

• Turbidity removal, decolorization, oil removal, dehydration, bacteria removal, deodorization, algae removal, removal of COD, BOD and heavy metal ions in water, etc. with remarkable efficacy.

• Adapt to the wide range of PH value of the water body 4-11, the best PH value range is 6-9, the PH value of the raw water after purification and the total alkalinity change is small, and the corrosion of the treatment equipment is small.

• The effect of purification treatment on micro-pollution, algae, low temperature and low turbidity raw water is remarkable, and the effect of purification on high turbidity raw water is especially good.

• Less dosage, low cost, 20%-50% saving in treatment cost.

3.Polyacrylamide

Polyacrylamide (PAM) is a water-soluble polymer, insoluble in most organic solvents, with good flocculation, can reduce the frictional resistance between liquids, according to the ionic characteristics can be divided into non-ionic, anionic, cationic and amphoteric four types.

Cationic polyacrylamide use precautions.

• Size of floc: floc is too small will affect the speed of drainage, floc is too big will make floc bound more water and reduce the mud cookie degree. After choosing the molecular weight of polyacrylamide can adjust the size of the floc.

• Sludge characteristics: The first point is to understand the source, characteristics and composition of sludge, and its proportion. According to the different nature, sludge can be divided into organic and inorganic sludge. Cationic polyacrylamide is used to dispose of organic sludge, relative anionic polyacrylamide flocculant is used for inorganic sludge, anionic polyacrylamide is used when alkaline is very strong, while anionic polyacrylamide should not be used when acid is very strong, and the amount of polyacrylamide is usually large when the solid content of sludge is high.

• Floc strength: flocs should be stable and not broken under shear. The molecular weight of polyacrylamide or the choice of suitable molecular structure can help to improve the stability of flocs.

• Ionicity of polyacrylamide: For dewatered sludge, flocculants with different ionicity can be used to select the best suitable polyacrylamide by doing a small test first, so that the best flocculant effect can be obtained and the least amount of dosing can be made to save the cost.

• Dissolution of polyacrylamide: good dissolution is the only way to give full play to the flocculation effect. Sometimes it is necessary to speed up the dissolution speed, and then the concentration of polyacrylamide solution can be considered.

Application

• As retention aid and reinforcing agent in paper making process.

• As coagulant, flocculant and sludge dewatering agent in water treatment.

• Used as water-reducing agent and oil repellent agent in oil drilling.

• PAM is also widely used in thickening, colloid stabilization, drag reduction, bonding, film formation, biomedical materials, etc.

4. Inorganic flocculant aluminum sulfate

The applicable pH range is related to the hardness of raw water, when dealing with soft water, the suitable pH is 5~6.6, when dealing with medium hard water, the suitable pH is 6.6~7.2, when dealing with high hard water, the suitable pH is 7.2~7.8. The applicable water temperature range of aluminum sulfate is 20oC~40oC, the coagulation effect is very poor when it is lower than 10oC. Aluminum sulfate is less corrosive and easy to use, but the hydrolysis reaction is slow and needs to consume a certain amount of alkali.

5. Inorganic flocculant ferric chloride

It is another commonly used inorganic low molecular coagulant, the product has solid black-brown crystals, but also a higher concentration of liquid. It has the advantages of easy solubility in water, large and heavy alum, good precipitation performance, wide range of adaptation to temperature, water quality and pH, etc. The applicable pH range of ferric chloride is from 9 to 11. The floc formed is dense and easy to precipitate, and the effect is still very good at low temperature or high turbidity. Solid ferric chloride has strong water absorption, strong corrosiveness, easy to corrode equipment, high anti-corrosion requirements for dissolution and dosing equipment, irritating odor, and poor operating conditions.