Polydadmac For Water Treat

Q: Is PolyDADMAC cationic or anionic? 

A: The answer of this problem is that polydadmac carries strong cationic which has a good performance for water treatment. 

The methods for detecting the content of chemical pure polydadmac liquid is as follows: 

1. Titration methods, mainly including: 

-- Silver titration method. 

-- Kjeldahl nitrogen determination method. 

2. Spectrophotometry: -- Ultraviolet spectrophotometry. -- Visible spectrophotometry. 

3. Chromatography: -- High performance liquid chromatography (HPLC). -- Gas chromatography (GC). 

4. Potentiometric titration method. In addition, the simplest and most efficient test method is that industrial polydadmac for water treatment product with a viscosity of 10000 cps can only be packed in a 200KG drum.

200KG drum polydadmac product is usually be used for wastewater and sewage treatment,Polydadmac cationic coagulant emulsion has stable performance and shelf time is 12Months.

When choosing a suitable solid - content poly(dimethyldiallylammonium chloride) (PDADMAC) product for use in the water treatment industry, it is necessary to make a comprehensive judgment based on the core requirements of the application scenario (such as treatment efficiency, operational convenience, cost control, etc.), equipment conditions, and environmental restrictions. 

The following are the selection logic and suggestions for specific scenarios: 

Core Requirements: Flocculation efficiency, dosing accuracy, treatment scale, cost 

Large-scale continuous treatment scenarios (such as urban sewage treatment plants, large - scale industrial wastewater treatment stations) 

Characteristics: The treatment volume reaches thousands to tens of thousands of tons per day. A stable and efficient flocculation effect is required, and there is sensitivity to transportation and storage costs. 

Selection Suggestion: High-solid - content products (40% - 50% liquid or solid powder)  

Reasons: With a high concentration of chemical pure polydadmac liquid, the dosing volume is small for the same treatment volume, which can reduce the load on metering equipment and facilitate precise control (avoiding excessive dosage that may cause secondary pollution to the water body). The transportation/storage cost per unit of polydadmac cationic coagulant emulsion is lower (reducing the transportation of water), making it suitable for long-distance procurement or large - scale stockpiling. 

Solid powder (with a solid content > 90%) can be dissolved as needed, offering high concentration flexibility, especially suitable for remote areas where the cost of transporting liquids is high. 

Small-scale intermittent treatment scenarios (such as small chemical plants, laboratory wastewater treatment) 

Characteristics: The treatment volume is small (in tons per day), the equipment is simple (mostly manual or simple metering), and there is a high requirement for operational convenience. Selection Suggestion: Low-solid-content products (20% - 30% liquid) 

Reasons: They have good fluidity, do not require complex dilution equipment, and can be directly manually dosed or used after simple stirring, avoiding problems such as uneven stirring and caking caused by the high viscosity of high - solid - content products. The dosing amount has a high tolerance (even if a small amount is excessive, it has a relatively small impact on the small system), making it suitable for use by non - professional operators. 

Low -temperature / long-term storage scenarios (such as in northern winters, requiring storage for more than 3 months) 

Characteristics: Low temperatures can easily cause high - solid - content products to delaminate and gel, and stability is a top priority for long - term storage. 

Selection Suggestion: Medium - low - solid - content products (30% - 40% liquid)

 Reasons: They have moderate viscosity, a low risk of intermolecular aggregation, and are less likely to delaminate during storage. If a higher concentration is required, 40% solid - content product with an added antifreeze can be selected (balancing concentration and stability).

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