Shandong Ecolink Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of oily wastewater treatment polyacrylamide in China, featured by quality products and good service. If you're going to wholesale high quality oily wastewater treatment polyacrylamide, welcome to get more information from our factory.
Product Overview

Cationic Polyacrylamide (CPAM) can effectively neutralize negatively charged emulsified oil droplets and suspended colloids in produced water from oilfields. Through charge neutralization and adsorption-bridging mechanisms, it enables rapid oil–water separation.
As an oilfield oily wastewater treatment chemical, it offers high oil removal efficiency, good compatibility, and easy operation. This oily wastewater flocculant is recommended with a molecular weight of 5–11 million and an ionic degree of 20%–50%. When used in combination with PAC, it can achieve over 95% oil removal efficiency, making it an ideal solution for produced water treatment and reinjection compliance.
Products Description
Cationic Polyacrylamide (CPAM) is manufactured based on the company's large-scale production capacity and mature production technology, ensuring stable product quality and continuous supply capability. Through a comprehensive quality management system and advanced testing methods, key parameters are precisely controlled and compliant with international standards. Whether for bulk procurement or long-term cooperation, it provides reliable assurance to customers.
Cationic Polyacrylamide (CPAM) is a water-soluble polymer formed by the copolymerization of acrylamide and cationic monomers. It appears as a white granular or powder material, easily soluble in water, nearly neutral, non-corrosive, non-toxic, and odorless. It is widely used in various oilfield produced water treatment applications. As a produced water treatment agent, it plays an important role in oilfield wastewater purification processes.

Product Parameter (specification)
|
Parameter |
Technical Specification |
|
Appearance |
White granules or powder |
|
Solid Content |
≥88%–90% |
|
Molecular Weight |
5–11 million (standard type) |
|
Ionic Degree |
20%–50% |
|
Dissolution Time |
≤60 minutes |
|
Residual Monomer |
≤0.05%–0.1% |
|
Effective pH Range |
3–10 |
Mechanism of Action
The mechanism of treating oily wastewater from oilfield produced water mainly includes two stages:
1. Charge Neutralization:
Oil droplets and colloidal particles in produced water are usually negatively charged, forming a stable emulsified system. The positively charged groups on CPAM molecular chains rapidly neutralize the surface charge, destabilizing the emulsion.
2. Adsorption & Bridging:
Cationic CPAM is a long-chain polymer that connects dispersed oil droplets and suspended particles through adsorption and bridging effects, forming larger flocs. Oil droplets rise to the surface while solids settle, achieving oil–water–solid separation.
When used together with polyaluminium chloride (PAC), a synergistic effect is produced, significantly improving treatment efficiency. This synergistic mechanism of oily wastewater oil–water separation agents has been widely verified in multiple oilfield applications.
Product Advantages
High Oil Removal Efficiency
Advantage: With PAC, oil removal rate can reach over 95%
👉 Customer Benefits:
Rapid oil removal and stable discharge compliance
Reduced load on downstream treatment systems (DAF/biological treatment)
Improved overall treatment efficiency
👉 Recommended Combination:
This product + PAC + demulsifier
As a demulsifying flocculant for emulsified oil, it quickly breaks oil emulsion stability.
Good Compatibility
Advantage: Compatible with PAC, reverse demulsifiers, etc.
👉 Customer Benefits:
Can be integrated into existing systems without major modification
Lower testing and switching costs
Improved overall process stability
👉 Recommended Combination:
PAC + demulsifier + defoamer (depending on conditions)
Easy Operation
Advantage: Good water solubility, fast dissolution, non-clogging
👉 Customer Benefits:
Reduced labor intensity
Less equipment blockage and maintenance
Improved on-site operational stability
👉 Recommended Combination:
Automatic dosing system + chemical package
Mild Properties
Advantage: Near-neutral, non-corrosive to equipment
👉 Customer Benefits:
Extended equipment lifespan
Lower maintenance and replacement costs
Improved system safety
Significant Overall Benefits
Advantage: Greatly reduces sludge and floating solids
👉 Customer Benefits:
Reduced sludge/floating residue disposal cost
Lower transportation and disposal expenses
Optimized overall operating cost structure
👉 Recommended Combination:
Sludge dewatering agent (PAM)

This cationic polymer for oilfield water treatment demonstrates outstanding performance in reducing overall operating costs.
Production & Quality Assurance (ECOLINK)
ECOLINK cationic polyacrylamide (CPAM) is produced under standardized manufacturing procedures and undergoes multiple inspection processes to ensure compliance with specifications. Each batch is supported with testing data and sample verification.
Through a stable production system and strict quality control, we ensure consistent performance in long-term use. Quality is verifiable, not just promised.
Customers can confirm product performance before procurement, significantly reducing trial-and-error costs.
Frequently Asked Questions (FAQ)
Q: 1. Why choose cationic PAM for oilfield produced water treatment?
A: Oil droplets in oilfield produced water are typically negatively charged. Cationic PAM can effectively destabilize emulsions through charge neutralization, while anionic PAM has limited effectiveness in such wastewater.
Q: 2. How to select molecular weight and ionic degree?
A: The recommended range is a molecular weight of 5–11 million and an ionic degree of 20%–50%. The exact parameters should be determined through laboratory jar testing based on actual water quality.
Q: 3. What is the recommended dosage?
A: It is recommended to use CPAM in combination with PAC. A typical dosage scheme is:
PAC: approximately 100 mg/L
CPAM: <10 mg/L
Under this system, oil removal efficiency can reach over 95%.
When used alone, CPAM dosage is generally 50–100 mg/L.
Q: 4. What precautions should be taken during use?
A: Fully dissolve before use to avoid undissolved particles blocking dosing systems
It is recommended to add PAC first, followed by CPAM
Store in a cool, dry place to prevent moisture absorption and caking
Q: 5. Is it effective for high-salinity and high-polymer-containing wastewater?
A: Yes. Field applications show that CPAM performs well in complex oilfield wastewater conditions, including high salinity, high polymer content, and strong emulsification.
Our high-quality service
A. Direct supply from the source factory: As an actual factory with an annual production capacity of 300, 000 tons, we offer you highly competitive prices and reliable delivery schedules.
B. Customized research and samples: The R&D team can customize exclusive products with specific molecular weight/concentration based on your source water quality and treatment goals. After confirming the indicators, we can provide samples for you to test first, and only after they are qualified, proceed with large-scale production.
C. Strict quality control and packaging: We have advanced production equipment and strict quality control. We also have a production enterprise equipped with heavy metal detection equipment to ensure that every step from raw materials to finished products complies with international standards such as NSF and ISO. Post-shipment inspection, laboratory testing of products before shipment. At the same time, we provide flexible customized packaging services to meet your local storage and transportation needs.
D. Innovation: Our experienced R&D team continuously develops innovative, customized ingredient solutions to meet the changing market demands.
E. One-stop global logistics: From small trial orders to full ship charterk, from negotiation, confirmation, production arrangement, booking, customs declaration to export documents, all are followed up by dedicated personnel to ensure professional and efficient order processing. Support shipping by sea, air, and land to any port worldwide.
F. Full-process technical support: Regarding customers' concerns about "not knowing how to use, incorrect ratios", we provide free comprehensive technical guidance. This includes the best ratio schemes for different water sources, correct dissolution steps, and the addition sequence when using multiple chemicals together. What you purchase is not only the product, but also a customized treatment solution to ensure effectiveness.


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