Cross Link Emulsion

1. Project Overview

This case focuses on a municipal sewage treatment plant with a daily treatment capacity of 50,000 m³, mainly handling domestic sewage and partial industrial wastewater. The plant originally used a common cationic polyacrylamide (CPAM) product for sludge dewatering with a belt filter press, but faced problems such as poor flocculation effect, high dosage, high sludge moisture content after dewatering, and frequent blockage of the belt filter press, which seriously affected the operation efficiency and increased the treatment cost. After switching to HENGFENG Polymer Cationic Polyacrylamide Cross Link Emulsion C2040T, all the above problems were effectively solved, achieving efficient, energy-saving and cost-reducing operation goals.

2. Core Challenges of the Sewage Treatment Plant

• The floc formed by the original CPAM is loose and fragile, which is easy to break during the pressing process of the belt filter press, resulting in poor solid-liquid separation effect.
• High dosage requirement: The original product needs 800-1000 ppm of dosage to achieve basic dewatering effect, leading to high chemical cost.
• High moisture content of dewatered sludge: The moisture content of the sludge after pressing is 85-88%, which is difficult to transport and dispose of, and increases the subsequent disposal cost.
• Frequent blockage of the belt filter press: The fine flocculent particles easily block the filter belt, resulting in reduced filtration efficiency, increased downtime for cleaning, and increased labor intensity of workers.
• Poor adaptability: The original product is sensitive to changes in sewage quality (such as pH value, temperature, and suspended solids content), and the treatment effect fluctuates greatly.

3. HENGFENG C2040T Product Advantages

HENGFENG Polymer Cationic Polyacrylamide Cross Link Emulsion C2040T is a high-performance cross-linked cationic polyacrylamide emulsion specially developed for sludge dewatering in sewage treatment plants, especially suitable for belt filter press equipment. It has the following core advantages:

• Excellent flocculation performance: The cross-linked structure enhances the adsorption and bridging ability, forming dense, firm and large flocs, which are not easy to break during pressing, and effectively improves the solid-liquid separation efficiency.
• Low dosage: The product has high cationic degree and strong charge neutralization ability, and the dosage is only 300-500 ppm, which can reduce the chemical cost by 30-40% compared with ordinary CPAM.
• Low sludge moisture content: After treatment with C2040T, the moisture content of the sludge can be reduced to 78-82%, which is easy to transport and dispose of, and reduces the subsequent disposal cost.
• Anti-blocking and high efficiency: The dense flocs are not easy to block the filter belt of the belt filter press, which improves the filtration speed, reduces the cleaning frequency of the filter belt, and ensures the continuous and stable operation of the equipment.
• Strong adaptability: It has good stability and adaptability to changes in sewage pH value (6-9), temperature (5-40℃) and suspended solids content, and the treatment effect is stable without obvious fluctuation.
• Easy to use: It is a water-in-water emulsion with high solid content, low viscosity, good stability and water solubility, which can be directly diluted and used without complicated dissolution equipment, saving equipment investment and operation time.

4. Solution Implementation Details

4.1 Equipment Matching

The sewage treatment plant uses a belt filter press with a width of 2.5m, a filtration speed of 1.2-1.5 m/min, and a design pressure of 0.3-0.5 MPa. HENGFENG C2040T is perfectly matched with the equipment, and no equipment modification is required, which reduces the transformation cost.

4.2 Usage Process

1. Dilution: Dilute HENGFENG C2040T with clean water at a ratio of 1:100-1:200 to prepare a 0.5-1.0% aqueous solution, stir evenly for 5-10 minutes until completely dissolved.
2. Feeding: Add the diluted solution to the sludge mixing tank through a metering pump, and fully mix with the sludge (mixing time: 30-60 seconds) to ensure sufficient reaction between the product and the sludge.
3. Dewatering: The flocculated sludge is sent to the belt filter press for pressing and dewatering, and the pressure and speed of the equipment are adjusted according to the actual sludge condition (pressure: 0.35-0.45 MPa, speed: 1.3 m/min).
4. Post-processing: The dewatered sludge is transported to the designated disposal area, and the filtrate is returned to the front-end treatment process for secondary treatment.

4.3 Key Control Parameters

5. Case Effect Data Comparison

The following table shows the detailed data comparison before and after using HENGFENG C2040T in the sewage treatment plant, which intuitively reflects the improvement effect of the product:

6. Customer Feedback

"After using HENGFENG C2040T cationic polyacrylamide cross link emulsion, the sludge dewatering effect of our sewage treatment plant has been significantly improved. The dosage of chemicals has been greatly reduced, and the moisture content of the sludge has dropped by nearly 5 percentage points, which not only saves a lot of chemical costs, but also reduces the difficulty and cost of sludge disposal. The belt filter press no longer blocks frequently, the operation efficiency has been improved by nearly 40%, and the labor intensity of workers has been reduced. The product has stable performance and strong adaptability, which fully meets our production needs. We highly recommend HENGFENG C2040T to other sewage treatment plants using belt filter press equipment." —— Engineering Director of the Municipal Sewage Treatment Plant

7. Why Choose HENGFENG C2040T?

• Cost-saving: Low dosage reduces chemical cost by 30-40%, and reduces sludge disposal cost by reducing sludge moisture content.
• Efficient and stable: Improves dewatering efficiency, reduces equipment failure rate, and ensures continuous operation of the sewage treatment plant.
• Easy to use: No need for special dissolution equipment, direct dilution and use, saving time and labor.
• High adaptability: Suitable for various sewage quality and belt filter press models, with stable treatment effect.
• Professional support: HENGFENG Polymer provides one-stop technical support, including on-site guidance on product use, parameter adjustment and problem solving, to ensure the best use effect.

8. Contact Us

If you are a sewage treatment plant using belt filter press and are facing problems such as high dosage, poor dewatering effect and frequent equipment blockage, please contact us immediately. We will provide you with customized solutions based on your actual needs and help you achieve efficient, energy-saving and cost-reducing operation.

HENGFENG Polymer —— Your Trusted Partner in Sewage Treatment Sludge Dewatering