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Dissolution Equipment
Corrosion-resistant and well-stirred dissolution equipment should be selected, such as stainless steel mixing tanks. Avoid using iron containers as iron ions may react with anionic polyacrylamide, affecting product performance.
Water for Dissolution
Use clean tap water or deionized water, avoiding water sources with large impurities. The water temperature should generally be controlled between 20 - 30°C. Excessively high or low temperatures can affect the dissolution rate and effect.
Dissolution Ratio
Control the dissolution ratio of anionic polyacrylamide according to the product manual. Generally, the dissolution ratio is 0.1% - 0.3%. A concentration too high may lead to dissolution difficulties and micelle formation, while too low a concentration may affect the usage effect.
Stirring Speed and Time
During the dissolution process, an appropriate stirring speed and time should be used. The stirring speed should not be too fast to avoid damaging the polymer molecular chain. The usual stirring time is 40 - 60 minutes to ensure the polymer is fully dissolved.
Choice of Addition Point
Select a suitable addition point based on the treatment process and water quality conditions. Generally, anionic polyacrylamide can be added at locations such as reaction tanks and sedimentation tanks. The addition point should be as close to the mixing area as possible so that the polymer can fully contact suspended matters and colloids in the water.
Control of Addition Amount
Precisely controlling the amount of anionic polyacrylamide added is key to ensuring treatment effects. Too little addition cannot achieve the expected flocculation effect, while too much addition may increase sludge volume and treatment costs. The optimal addition amount can be determined through small tests and pilot tests.
Addition Sequence
When used in combination with other agents, attention should be paid to the addition sequence. Generally, inorganic coagulants such as polyaluminum chloride and aluminum sulfate should be added first, followed by anionic polyacrylamide. This can fully exert the rapid coagulation effect of inorganic coagulants and the adsorption and bridging effect of anionic polyacrylamide, improving the treatment effect.
Storage Conditions
Anionic polyacrylamide should be stored in a dry, ventilated, and cool place, avoiding direct sunlight and high temperature environments. The storage temperature should generally be controlled between 5 - 30°C. Also, avoid mixing with other chemical reagents to prevent reactions that may affect product performance.
Packaging Requirements
The product should use well-sealed packaging materials, such as plastic bags and plastic barrels. The packaging materials should have certain strength and moisture-proof performance to prevent the product from being dampened or damaged during storage and transportation.
Precautions for Transportation
During transportation, prevent the product from being squeezed, bumped, and rained on. The transport vehicle should be kept clean and dry, avoiding mixing with other chemical products.
