Explore our premium selection of certified cationic, anionic, and nonionic polyacrylamide flocculants tailored for optimal solid-liquid separation.
An in-depth analysis of bio-based biopolymers, synthetic polyacrylamide matrices, charge density dynamics, and green coagulation-flocculation technology roadmap.
In response to stringent environmental regulations and global net-zero carbon initiatives, the demand for natural bio-flocculants like Chitosan has escalated dramatically across North America, Europe, and Asia-Pacific. Derived from deacetylated chitin sourced from marine crustacean shells, Chitosan represents a non-toxic, biodegradable cationic biopolymer equipped with rich reactive primary amino groups (-NH2) and hydroxyl (-OH) functional sites.
As a leading China Chitosan Flocculant Supplier and synthetic polymer powerhouse, Qingdao Oubo Chemical Co., Ltd bridges the gap between traditional synthetic acrylamide chemistry and emerging eco-friendly bio-flocculation systems. By optimizing charge density, molecular weight, and solubility, Chitosan flocculants effectively neutralize negatively charged colloidal suspended solids, heavy metals, microplastics, and organic dyes without introducing secondary aluminum or synthetic monomer contamination into sensitive ecosystems.
Flocculation effectiveness hinges on three core mechanisms: Charge Neutralization, Polymer Bridging, and Electrostatic Patching. While Chitosan exhibits high positive charge density in acidic to neutral pH regimes, synthetic Polyacrylamide (PAM) provides ultra-high molecular weights (up to 22 Million Daltons) ideal for forming expansive micro-flocs.
Modern industrial wastewater plants utilize a hybrid dual-dosing strategy. Primary coagulation via Chitosan rapidly destabilizes fine colloidal particles and reduces Chemical Oxygen Demand (COD). Subsequent addition of Oubo Polyacrylamide (APAM/CPAM) induces massive bridging actions, resulting in fast-settling, dense flocs with exceptional shear resistance and dewatering characteristics.
| Polymer Type | Primary Structure / Charge | Molecular Weight Range | Optimal pH Range | Key Industrial Strengths |
|---|---|---|---|---|
| Chitosan Flocculant | Cationic Biopolymer (Deacetylated Chitin) | 50,000 – 1,000,000 Da | pH 4.0 – 6.8 | 100% Biodegradable, non-toxic, high metal chelation, ideal for food & potable water. |
| Cationic PAM (CPAM) | Synthetic Copolymer (Acrylamide + DAC/ADAM) | 5 Million – 15 Million Da | pH 3.0 – 10.0 | Superior municipal sludge dewatering, high shear resistance, fast flocs formation. |
| Anionic PAM (APAM) | Synthetic Copolymer (Acrylamide + Acrylic Acid) | 8 Million – 22 Million Da | pH 6.0 – 14.0 | Cost-effective mineral tailing settlement, industrial wastewater clarification, sugar refining. |
| Nonionic PAM (NPAM) | Synthetic Homopolymer (Pure Acrylamide) | 3 Million – 10 Million Da | pH 1.0 – 8.0 | High tolerance to acidic industrial effluents, soil stabilization, mining leach liquor separation. |
Oubo Chemical Co., Ltd was established in 2011, which is located in the Free Trade Zone of Qingdao, China. The QC system of O'Brien is strict and comprehensive, in the past 10 years, the business growth rate is 10% per year. Qingdao Oubo Chemical Co, Ltd is highly committed to quality, service, and pays more attention to the influence of the environment during polymer production and application.
Oubo specializes in supplying Cationic Polyacrylamide, Anionic Polyacrylamide, and Nonionic Polyacrylamide, we have advanced equipment and professional staff, which ensure all the products and service to be in good order. The annual capacity of polyacrylamide has broken through 50,000 Tons in 2018, and the quality management system of Oubo has been certified by ISO9001:2008. We proudly stand behind our product.
Polyacrylamide (PAM) is a synthetic resin prepared by polymerizing acrylamide. It is a white, solid, water-soluble polymer of acrylamide, mostly used as a flocculant, coagulant, and filtration aid in a whole range of applications that are determined by its physical form and its ionic type (nonionic, anionic, cationic, and Mannich).
It is utilized in secondary oil recovery, as a thickening agent, a flocculant, and an absorbent. Moreover, polyacrylamide is also employed to separate macromolecules of different molecular weights.
Oubo Chemical Co, Ltd has a vision for the medium and long-term development of our products and market. Our PAM products provide perfect solutions for a vast spectrum of global applications including Waste Water Treatment, Oil & Gas Extraction, Mining, Agriculture, Paper & Pulp, Paints & Coatings, Textiles, Food, and others.
Oubo Chemical has established a professional team to help our customers with their specific application of PAM. Our brand O'brien has been accepted by clients worldwide.
Our strategic action depends on continuous performance improvement and is absolutely oriented to our customers' satisfaction. We will do our best to provide professional service with superior quality to our customers, and never stopping research on new products and applications, to achieve the goal which is to protect our planet with you. With the fast development of our factory, we will do our best to be competitive always thinking about our customers.
Specially formulated for organic sludge dewatering, municipal wastewater, and paper wet-end retention.
High molecular weight polymers engineered for inorganic solid-liquid separation, mining, and EOR.
Designed for acidic wastewater processing, mineral leaching, and soil moisture retention systems.
Industry-leading manufacturing capabilities, patented biological synthesis, and world-class quality assurance.
Qingdao OUBO Chemical Co,. Ltd is the leading manufacturer of Polyacrylamide in the world. We using the biological methods to produce the polyacrylamide, which has patent applied for. We put €2 hundred million into research per year for more technical accumulation.
Global supplying chain. All materials are purchased from all over the world, our suppliers are such as SINOPEC, Eni and so on, all of the production lines are automatic. All products comply with ISO9001, and each batch product would be tested for 3 times before delivery by QC team.
We specialized in manufacturing Polyacrylamide for 8 years with superior quality and competitive price. Our technical team join in pre-sales, sales and after-sales process to support you in the selection, product testing and after-sales service. We promise: professional technical team to help you do the right choice.
Our technical team join in pre-sales, sales and after-sales process to support you in the selection, product testing and after-sales service. We promise: professional technical team to help you do the right choice.
Customized polymer solutions designed for high-efficiency solid-liquid separation across complex industrial sectors.
As a flocculating agent, mainly used in industrial solid-liquid separation process, including settlement, to clarify, concentrate and sludge dewatering processes. Polyacrylamide plays an important role in municipal sewage treatment and industrial wastewater treatment. Increasingly stringent regulations promote the development of water treatment industry.
For municipal sewage treatment industry, it is also widely used in leather, paper making, citric acid, vegetable protein extract, dyeing, pharmaceutical, incense, etc.
Applications for all the major sectors are: Urban Sewage Treatment, Paper, Food Processing, Petrochemical, Metallurgical Processing, Dyeing and the Sugar and all kinds of industrial wastewater treatment.




In the paper industry, PAM can be used as dry strength agents, retention agent, and filter aid. They greatly improve paper quality, enhance physical strength of paper, reduce fiber loss, and can also be used in white water treatment and deinking flocculation processes.



Polyacrylamide is widely used in oil exploration, profile control, plugging agents, drilling fluids, and fracturing fluid additives. It provides fluid loss reduction, shale inhibition, dilution, plugging, cooling and lubricating of drill bits, debris transport, and well cementing.
Major Application Sectors: Enhanced Oil Recovery (EOR), Fracturing Fluid Additives, Drilling Fluids Additives, Oil Sands Flocculants.



Polyacrylamide separates minerals and ore while treating process wastewater and sealing mining pipes. Oubo offers non-ionic, anionic, and cationic charged products at varying molecular weights tailored for: Coal Washing, Tailing Treatment, Solid Liquid Separation by Filtration and Centrifugation, and Ore Processing for Gold, Silver, Iron, Nickel, and Copper.



Polyacrylamide is utilized extensively in the clarification and flotation steps of sugar juice refining, increasing juice clarity and yield.


PAM serves as an effective textile sizing agent, finishing agent, and fabric treatment agent, enhancing structural strength and anti-static qualities.



Standardized international export packaging guaranteeing moisture barrier protection and zero degradation during long-distance ocean freight.
Unbranded 25kg Kraft paper bags with internal PE liner for OEM client flexibility.
Standard Oubo O'brien branded export bags with technical specifications and safety batch codes.
750kg – 1000kg Super Sacks / Jumbo FIBC Bags for high-volume automated chemical dosing setups.
Fumigated wooden or plastic pallets fully wrapped with stretch film and strapping for secure loading.
Pioneering the next era of bio-synthetic hybrid polymers and zero liquid discharge (ZLD) technologies.
Transitioning towards bio-based raw materials, including Chitosan, sodium alginate, and microcrystalline cellulose derivatives, dramatically minimizes the lifecycle carbon footprint of municipal wastewater treatment plants.
Integrating online streaming current monitors (SCM) and optical turbidity sensors with dynamic polymer dissolution units to deliver precise parts-per-million (PPM) dosage control without polymer waste.
Optimized high-charge flocculant formulations enable high-salinity industrial effluents to undergo complete mechanical vapor recompression (MVR) and crystallization with maximum water recovery rates.
Expert technical answers regarding Chitosan flocculants, Polyacrylamide selection, and bulk sourcing from China.
Browse our complete series of high molecular weight nonionic, cationic, and anionic flocculants.