LIQUID PAC 10%-17%

Overview of Liquid PAC 10% - 17%

PAC stands for Poly Aluminum Chloride. This is a type of Aluminum sulfate that exists in a high molecular form (polymer) with the chemical formula Aln(OH)mCl3n-m. Currently, this chemical is gradually replacing aluminum sulfate in the water treatment field in developed countries.

Poly Aluminum Chloride (PAC) is a versatile chemical used extensively in water treatment and various industrial processes. Its growing importance across multiple sectors underscores its effectiveness in treating wastewater, purifying drinking water, and meeting the stringent environmental standards required today.

PAC is currently produced in 2 forms, which are solid PAC and liquid PAC. Each type of PAC will have specific characteristics, which are:

Solid PAC

Solid PAC exists in the form of yellow or ivory-yellowish powder. When mixed with water, it is completely soluble. With just a sufficient amount of powder, we can create a 10% - 17% PAC solution. Then, add this solution to the water area that needs to be treated, stir well and wait for it to settle. For solid PAC, we can store it in normal conditions, which is to pack it in a bag or sealed package, then store it in a dry place, away from direct sunlight.

Liquid PAC

In terms of appearance, liquid PAC exists in the form of a lemon-yellow solution. It is usually stored in cans or plastic bottles.

How to create PAC chemicals currently used

To produce PAC, people will use hydrochloric acid and aluminum chemicals. These two materials will be put into a glass-lined reactor equipped with a agitator. Depending on the desired PAC content (PAC 10%, PAC 17%, PAC 31%, ...) the ratio of HCl and aluminum sulfate will be different.

During the reaction until the end of the reaction, the temperature of the furnace must always be strictly controlled. The product obtained after the reaction will be separated by filtration.

Applications of PAC chemicals 10% - 17%

PAC chemicals are high molecular polymer compounds commonly used in the field of treatment, specifically:

· Wastewater treatment: PAC is used to remove suspended solids in wastewater, such as industrial wastewater from paper production, textile dyeing, ceramic production, bricks, seafood processing, livestock slaughter, metallurgy, etc.

· Water treatment: PAC chemicals help coagulate suspended solids, organic impurities to treat water for people or for industrial factories. This is a special water treatment product suitable for swimming pool water supply stations, domestic water supply plants, etc.

· Domestic water filtration: PAC is used in systems and processes for filtering domestic water or drinking water for households. Water from rivers, lakes, canals, and streams after being directly settled with PAC can be used to provide water for daily use and irrigation.

· Aquaculture water treatment: PAC is a chemical commonly used in aquaculture ponds, especially shrimp and fish ponds.

When using PAC to treat water, the dosage of PAC will depend on the content of suspended solids and the properties of the water to be treated. Therefore, how to mix PAC will be determined through direct testing on the subject to be treated.

Quality indicators of Dong A’s PAC 10% - 17%

The reasons PAC 10% - 17% chemical are used more than alum

Previously, water treatment mainly used alum, but since PAC was introduced, people have prioritized choosing this chemical, because:

· The settling efficiency of PAC is 4-5 times higher than that of alum, not only that, the coagulation time of PAC is also much faster.

· Using PAC helps the water become clearer, thereby prolonging the filtration cycle and increasing the quality of the water after being filtered.

· Compared to alum, the water after being treated with PAC has a more stable pH concentration, with less fluctuations. Therefore, you will not need to use additional lime or alkali to treat the water again. This will limit equipment corrosion.

· When using PAC, we will not need or need to use very little settling aid, especially you will not need to use other equipment to support the settling. Using PAC is also simple, without having to perform complicated operations.

· When using PAC at high doses, you will not have to worry about the water becoming cloudy again like when using alum.

· The ability to remove soluble and insoluble organic compounds and heavy metals of PAC chemicals is much better than aluminum sulfate alum.

· When using PAC, the amount of sludge after treatment will be less than when using aluminum sulfate alum.

· If you only use a low amount of PAC to treat water, the formation of large flocs and the settling efficiency will still be guaranteed.

· When using PAC, the residual Al3+ content in the water will be lower than when using aluminum sulfate. Not only that, using PAC also does not cause the amount of SO42– (toxic to microorganisms) in the wastewater after treatment.

· Once the packaging is opened, PAC does not leak or clump like aluminum sulfate.

· The pH range when using PAC is quite wide, ranging from 5 - 8.5. Therefore, at this pH concentration, heavy metal ions will precipitate and settle to the bottom or adhere to previously formed colloidal particles.

Notes on the use of PAC chemicals

PAC chemicals are industrially produced in two main forms: liquid PAC and powder PAC. With the liquid form, we will use it directly, but with the powder form, we need to mix it first. Because PAC is not corrosive, storing and transporting PAC is also quite easy.

When using PAC, you can mix it into a 5% - 10% solution and then pour it into the water source that needs to be treated:

· For surface water, the dosage will be from 1 - 10g/m3 PAC, depending on the turbidity of the raw water.

· For wastewater from industrial factories, the dosage will be from 20-200g/m3, depending on the suspended solids content and the properties of the wastewater.

In short, the amount of PAC used will depend on the properties of the water that needs to be treated.

Address providing PAC 10% - 17% chemicals in large quantities, GOOD prices

With its wide application and high efficiency, PAC chemicals are currently being sold in many places. However, not every place can guarantee you the quality and price of the product. You may buy a cheap product but the quality is poor, with no clear origin or the product you buy is expensive but the quality is good. Therefore, you need to carefully consider where to buy PAC.

Currently, Dong A is a unit selling PAC 10% - 17% chemicals that are highly appreciated by customers for their quality and reasonable price. If you need to buy PAC, please contact Dong A immediately to receive the BEST quote.