Wholesale Poly Aluminium Sulphate Manufacturer & Supplier

High-Performance Coagulation & Flocculation Systems Engineered for Global Water Purification Standards and Extreme Process Conditions

Established in 1998

27 Years of Expert Water Solution Integration

Wuxi BS Water Treatment Chemicals Co., Ltd. represents the absolute tier-1 level of research, synthesis, and bulk manufacturing of polymer-based and inorganic water clarifiers in China. Since our launch in 1998, we have specialized in formulating cutting-edge solutions for drinkable water systems and complex, high-salinity industrial plant streams.

Our production facility integrates advanced solid and liquid handling processes, guaranteeing high-purity yield and zero batch deviation. Through technical optimization and rigorous supply logistics, we help global enterprises achieve stringent ecological and performance metrics.

27+
Years of Industry R&D Experience
500k+
Annual Tonnage capacity (Tons)
20,000+
Finished Warehouse Reserve (Tons)
1000+
Global Corporate Partners
TECHNICAL WHITEPAPER

Deep Analysis of Poly Aluminium Sulphate & Hybrid Coagulants

In modern industrial and municipal water treatment, the process of coagulation and flocculation is the primary defense line against suspended particulate matter, colloids, and heavy organic loads. Historically, simple metal salts like aluminum sulfate (alum) and ferric chloride were the global benchmarks. However, the operational parameters of these monomeric chemicals are highly constrained by pH fluctuations, high dosage requirements, and excessive chemical sludge generation.

To overcome these limitations, Poly Aluminium Sulphate (PAS) and its structural counterparts, such as Poly Aluminium Chloride (PAC), Aluminum Chlorohydrate (ACH), and Polymeric Aluminium Ferric Chloride (PAFC), were developed. These pre-hydrolyzed polymeric inorganic coagulants feature high charge densities, macromolecular networks, and structural stability across a broad pH spectrum.

Chemical Composition and Kinetic Performance

Unlike raw alum, Poly Aluminium Sulphate ($\text{Al}_x\text{(OH)}_y(\text{SO}_4)_z$) features pre-formed polymeric species. During chemical manufacturing, the basicity of the solution is adjusted, yielding highly cationic polymeric aluminum complexes such as $\text{Al}_{13}$ and $\text{Al}_{30}$ structures. When introduced into raw turbid waters, these poly-cationic networks interact via two primary mechanisms:

  • Double-Layer Compression & Charge Neutralization: Colloidal pollutants in water carry negative zeta potentials. The multi-charged Al complexes neutralize this negative charge rapidly, causing rapid colloid destabilization.
  • Sweep Flocculation: Pre-formed hydroxyl polymers precipitate into amorphous metal hydroxides, trapping suspended particulate matter in a dense matrix as they settle.
Chemical Class Al₂O₃ Content (%) Basicity (%) pH Range Primary Industry Target
Poly Aluminium Sulphate (PAS) 15% - 17% 40% - 65% 5.5 - 8.5 Drinking Water, Paper Sizing, Heavy Metallurgy
High Purity PAC (PAC-01) 29% - 30% 60% - 85% 5.0 - 9.0 Food Processing, Biological Sewage, Potable Water
Aluminum Chlorohydrate (ACH) 23% - 24% 83% - 85% 5.5 - 9.5 Cosmetics, High-tech Manufacturing, Municipal Sludge
PAFC (Al-Fe Composite) 26% - 28% 50% - 80% 6.0 - 9.0 Heavy Coal Slurry, Oily Oilfield Effluents, Dyestuff

Macro Industry Sourcing Framework

Purchasing directors and system engineers from water engineering companies evaluate coagulant suppliers using three criteria: Active Ingredient Concentration, Residual Heavy Metal Profile, and Logistical Redundancy. Wuxi BS operates high-throughput spray drying towers and continuous liquid reactors, ensuring every batch conforms strictly to AWWA B408 and EN 17034 specifications.

Our raw material sourcing of high-purity bauxite and hydrochloric/sulfuric acid runs on closed-loop, digital industrial control lines. This integration eliminates the risk of trace heavy metal contamination (such as Arsenic, Cadmium, and Lead) in the final product. Our materials are completely safe for food, municipal water, and critical pharmaceutical pre-treatment systems.

Product Classifications

Explore Our Specialized Chemical Portfolios

Wuxi BS manufactures six distinct families of chemical additives, matching specific molecular architectures to unique effluent conditions.

Polymeric Aluminium Ferric Chloride (PAFC)

Synergizes the rapid settlement of iron ions with the wide operating range of aluminum polymeric chains. Perfect for low-temperature, highly turbid industrial raw waters.

Compound Poly Aluminium Chloride (CPAC)

An optimized hybrid coagulant combined with organic polymers. Significantly reduces sludge volume, eliminates microflocs, and speeds up filtration bed cycles.

Poly Aluminium Chloride (PAC) · Solid Version

High-solubility yellow and white spray-dried powders. Uniform particle sizing prevents dust dispersion during industrial dry dosing, ensuring rapid preparation and dissolution.

PolyAluminium Chloride (PAC) · Liquid Version

Ready-to-use stable liquid solutions ranging from 10% to 15% active ingredient content. Formulated for automated metering pump systems, avoiding the need for manual dissolution.

High purity Poly Aluminium Chloride (PAC-01)

Synthesized from premium alumina hydroxide and high-grade raw acid. Features ultra-low iron levels (<0.01%) and matches strict global standards for municipal drinking water systems.

High Basicity ACH (Aluminum Chlorohydrate)

The highest concentration of stable polymeric aluminum available (up to 24% Al₂O₃). Offers up to 85% basicity, minimizing pH drop and reducing neutralizing chemical costs.

Global Applications

Macro-Level Industrial System Solutions

Applying tailored coagulation kinetics to specific manufacturing sectors to optimize water reuse and meet regulatory limits.

Sewage Treatment

Sewage & Municipal Wastewater

Removes orthophosphates, suspended solids, and total organic carbon. Enhances tertiary clarifier settling velocity and dewatering operations.

Petroleum Industry

Petroleum & Petrochemical

Breaks oil-in-water emulsions, removes trace hydrocarbons, and treats produced water before reinjection or disposal.

Membrane Process Pretreatment

Membrane Pre-Treatment

Prevents colloidal fouling in RO and UF membranes. Enhances flux rates, lowers clean-in-place frequency, and extends membrane life.

Papermaking Industry

Pulp & Paper Processing

Works as a high-performance retention aid and dry-strength resin fixer. Controls pitch/stickies and optimizes sizing under neutral pH conditions.

Drinking Water Treatment

Municipal Potable Water

Ensures ultra-low residual aluminum and complies with strict NSF/ANSI Standard 60 specifications for safe drinking water.

Partnership & OEM Services

OEM/ODM Contract Manufacturing & Custom Engineering

Customize packaging formats, polymer charge structures, and solid-liquid ratios to meet your local distribution and system needs.

Professional Technical Team

Our lab technicians offer comprehensive "water quality finger-printing" analyses. We run jar tests to identify the ideal flocculant dosage and charge profile for your specific site.

Stable Supply Capacity

With an annual sales volume exceeding 500,000 tons and a constant 20,000-ton warehouse reserve, we protect your supply chain against sudden market shortages.

Worry-Free Operations

Our smart production lines run automated QC check points at every step. From raw materials to final bulk shipment, quality is fully traceable.

Decades of R&D Innovation

We continuously invest in polymer chemistry, designing eco-friendly, low-dosage chemicals that reduce secondary sludge output and lower processing costs.

Our Journey

Growth Milestones & Future Outlook

A history of engineering innovation, capacity expansions, and global expansion.

1998

Our chemical synthesis factory was established in Wuxi, specializing in basic inorganic coagulant production.

2005

Renamed to Wuxi Bisheng Water Treatment Agent Co., Ltd. Expanded production capacity with new spray drying towers.

2007

Launched our global distribution business. Began exporting high-purity coagulants to Southeast Asia, Europe, and the Middle East.

2021

Annual sales surpassed 10,000,000 USD. Modernized our facilities with automated packing and digital logistics systems.

2025

Established our dedicated international trade division, offering direct engineering support and logistics to global buyers.

Future

Developing green coagulant chemistries and smart dosage automation systems to support global carbon-neutral wastewater projects.

Certifications & Standards

Globally Verified Quality Assurance

Wuxi BS manufactures water treatment products that conform strictly to international quality, environmental, and occupational safety systems. We hold active ISO9001, ISO14001, and ISO45001 certifications.

Every batch undergoes strict analysis using ICP-OES and modern lab equipment to confirm active alumina levels, basicity ratios, and ensure compliance with strict purity standards.

ISO 9001 Certificate
ISO 14001 Certificate
OHSAS Certificate
Quality Compliance Certificate
Environmental Standard Certificate
Safety Standard Certificate
Export Certificate
Patent Certificate
Technical Q&A

Frequently Asked Questions About Water Treatment Chemistry

Direct answers from our senior research chemists and industrial engineers regarding compound properties, dosing, and bulk sourcing.

Q1: How does Poly Aluminium Sulphate differ from standard Poly Aluminium Chloride (PAC)?

Answer: While both are pre-hydrolyzed aluminum coagulants, Poly Aluminium Sulphate uses sulfate ions ($\text{SO}_4^{2-}$) rather than chloride ions ($\text{Cl}^-$) to build its polymer network. The divalent sulfate ions create wider, heavier flocs that settle faster in low-temperature or low-turbidity waters. Additionally, using sulfate reduces chloride corrosion risks in industrial equipment and boilers.

Q2: What is the significance of basicity in inorganic coagulants?

Answer: Basicity indicates the degree of pre-polymerization (hydroxyl concentration relative to aluminum content). Higher basicity, such as in ACH (83%-85%), means more polymerized cationic aluminum species are present. This provides stronger charge neutralization, consumes less water alkalinity, and minimizes pH drops during treatment, reducing the need for secondary pH adjustment chemicals.

Q3: Can these coagulants be used directly in water treatment systems containing RO membranes?

Answer: Yes, but dosing control is vital. Coagulants must be fully reacted and settled out in clarification basins before water reaches reverse osmosis systems. Any residual unreacted aluminum can coat and foul the membranes. Wuxi BS helps design proper dosage configurations and recommends combining inorganic coagulants with organic flocculants to prevent downstream membrane fouling.

Q4: How does temperature affect coagulation performance?

Answer: Low water temperatures (under 5°C) slow down the hydrolysis rate of traditional monomeric salts like alum. Pre-hydrolyzed chemicals like Wuxi BS Poly Aluminium Sulphate or PAFC bypass this temperature dependency, maintaining rapid floc formation and settling rates in cold weather conditions.

Q5: What packaging options do you offer for bulk wholesale orders?

Answer: For solid powders, we offer standard 25kg PP/PE woven bags with inner liners, as well as 1000kg bulk containers (Jumbo Bags). Liquid formulations are shipped in 250kg drums, 1250kg IBC tanks, or directly via bulk tank trucks, tailored to your site's handling requirements.

Media & Industry Insights

Latest Corporate News & Innovations

Stay informed about our digital manufacturing upgrades, global exhibitions, and newly patented water purification solutions.

Wuxi BS Water Treatment Global Layout
Calendar Icon Sep 09, 2025

Wuxi BS Water Treatment: From Local Deep Dive to Global Layout, Dual Engine Strategy

Wuxi BS Water Treatment Chemicals Co., Ltd. officially launched its new overseas marketing initiative, integrating digital logistics systems to connect our production directly with global water treatment projects.

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