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Brief introduction of polyaluminium chloride
Poly-aluminium chloride is an inorganic polymer coagulant, because of the hydroxyl ion bridging and polyvalent anion polymerization production of larger molecular weight, high charge of inorganic polymer water treatment chemicals.
Basic informationm Polyaluminium chloride
Poly aluminium chloride CAS NO:1327-41-9
English name: Polyaluminium Chloride, abbreviated PAC
EINECS:215-477-2
Molecular formula: Al2Cl (OH) 5
Polyaluminium Chloride use precautions, and dosage
1, according to the different raw water conditions, can do small trial first before seeking the best dose. For ease of calculation, configuration test solution by weight (w/w), with 2~5% distribution as well.. With 3% solution: solid 3G of poly aluminum chloride, wash 200ml sung in the graduated cylinder, jiaqingshuiyue 50ml, dissolution and dilute with water to 100ml scale again, shake the can.
2, poly aluminum chloride for the production of solid: 1:15 clear water =1:9 to weight ratio (liquid product is 1:2 per cent) mix dissolve. Hydrolysis of aluminum oxide content of less than 1% solution, will reduce effectiveness of high concentration is too easy addition of uniform.
3, dosing scale seeking the best dosing the amount of dosing, and look at adjusting in the running. See fewer sedimentation tanks alum, and dark, the dosing volume is too small; As seen on sedimentation alum and, cloud high, the dose should be adjusted.
Properties of polyaluminium chloride
A, purified water is better than aluminum sulfate flocculant, compared to the cost of water and low 15-30%.
B, sedimentation of flocs formed quickly, fast, processing power than traditional products such as aluminum sulfate.
C,Alkalinity in water less than c, consumption of various inorganic flocculant, and without injecting or injecting little alkaline agents.
Use
A, urban water supply and drainage cleaning: water, groundwater, river water, reservoir.
B, industrial water purification.
C, urban wastewater treatment.
D, useful substances in industrial waste water and solid waste recycling, promoting the settlement of pulverized coal in coal washing waste water recovery of starch, starch manufacture.
E, industrial wastewater treatment: wastewater from printing and dyeing, leather, heavy metal waste water, waste water, fluoride-containing wastewater, coal washing waste water containing oil wastewater treatment, paper making, metallurgy, mine wastewater, wastewater from the brewing wastewater effluent,
Packaging of polyaluminium chloride and points for attention
PAC packaging:
1, plastic bags, plastic film set in, each bag of net weights 25kg, also can be modified according to user requirements, while liquid polyaluminium chloride sales.
2, this product is the prohibition of poisonous substances mixed loading, transportation and storage, the product should be kept in indoor drying, ventilation, shade, and do not damp.
Poly-aluminum chloride
1, use should be made according to the quality scale, elect water purification effect is good, put a small amount of the best points. Solution should be mixed with used, amount of non-drinking water should be selected according to the actual situation.
2, when using solid, and water dissolved with the distribution of 10-25% solution and diluted to the required concentration of water, slowly feeding first when dissolved in water, and stir it constantly.
3 different brands of water treatment chemicals, different manufacturers or cannot be mixed, and shall not be mixed with other chemicals to save.
4, ML and diluent slightly corrosive, but lower than other inorganic flocculants.
5, effective storage products: liquid for half a year, two years solid.
Solid product after the tide can still be used
Indicators | ||||||
A | B | |||||
Liquid | Solid | Liquid | Solid | |||
Excellence | Grade | Excellence | Grade | |||
Aluminium ( Al 2O3) % ≥ Basicity% Density(20°C)( g/cm3) ≥ Water can catch % ≤ PHvalue(1%aqueous solution) | 10.0 40-85 1.15 0.1 3.5-5.0 | 10.0 40-85 1.15 0.3 3.5-5.0 | 30.0 40-90 ---- 0.3 3.5-5.0 | 28.0 40-90 ---- 1.0 3.5-5.0 | 10.0 40-90 1.5 0.5 3.5-5.0 | 27.0 40-90 ---- 1.5 3.5-5.0 |
The biggest manufacturer of Polyaluminium Chloride for water purification