Premium Polyaluminium Chloride (PAC) and coagulant formulations ready for direct shipment to major New Zealand industrial ports.
Specifically processed high-purity coagulant featuring low heavy-metal properties, designed for New Zealand municipal drinking water purification.
Premium liquid PAC offering instant coagulation without dilution setups. Perfect for paper mills and agricultural wastewater treatment in NZ.
High-basicity powder format suitable for long-term storage and efficient distribution across remote water plants in the North and South Islands.
Engineered composite polymer providing superior flocculation dynamics for high turbidity and high organic load industrial wastewater systems.
New Zealand (Aotearoa) is renowned for its pristine ecosystems, but the intensification of agriculture, expanding municipal footprints, and forestry processing have placed significant pressure on the country's freshwater networks. Under the strict governance of Taumata Arowai (the Water Services Regulator established under the Water Services Act 2021), water operators must meet exceptionally stringent requirements regarding microbiological safety, turbidity reduction, and limits on chemical trace residues.
Polyaluminium Chloride (PAC) has emerged as the premier primary coagulant across New Zealand municipal water treatment plants (WTPs) and wastewater networks. Compared to traditional Alum (Aluminium Sulphate), PAC operates across a broader pH spectrum and leaves significantly lower residual aluminium in treated water. This makes it crucial for complying with the Drinking Water Quality Assurance Rules (DWQAR) and minimizing impact on highly sensitive aquatic ecosystems.
The dairy processing sector is the backbone of New Zealand's export economy. Dairy factories generate massive amounts of wastewater containing suspended solids, fats, oils, and phosphorus. To meet strict regional council discharge resource consents, dairy processors utilize high-basicity Polyaluminium Chloride to rapidly aggregate colloidal organic compounds prior to dissolved air flotation (DAF) treatment.
Furthermore, New Zealand's active pulp and paper mills, timber treatment plants, and mining sectors require tailored chemical coagulants to manage complex waste streams. High bascity PAC grades ensure rapid floc formation, reducing settling times in clarifiers, which maximizes throughput in operations across Waikato, Bay of Plenty, and Canterbury regions.
How Wuxi BS Water Treatment Chemicals mitigates global supply shocks to deliver continuous, high-performance chemical coagulants.
New Zealand is highly susceptible to shipping disruptions and global supply chain volatility. Recognizing this vulnerability, Wuxi BS Water Treatment Chemicals Co., Ltd. has integrated digital, automated "Factory 4.0" systems into our production facility in Wuxi, Jiangsu province. By utilizing closed-loop control systems for hydrochloric acid and bauxite raw material inputs, we guarantee consistent chemical properties across all batches—ensuring no variation in basicity, Al2O3 percentage, or flocculation efficiency.
Our raw material integration, proximity to major international shipping routes (Shanghai and Ningbo ports), and extensive storage warehouses allow us to maintain steady supply parameters even during periods of heavy sea-freight volatility. For New Zealand regional distributors, chemical bulk importers, and municipal councils, this guarantees a robust, predictable, and cost-effective supply line.
| Specification Parameter | High Purity PAC-01 (Drinking Water) | Solid Version (Industrial/Wastewater) | Liquid Version (Ready-to-use) |
|---|---|---|---|
| Alumina (Al2O3) Content | ≥ 30.0% | 28.0% - 30.0% | 10.0% - 17.0% |
| Basicity | 80.0% - 90.0% | 60.0% - 85.0% | 50.0% - 80.0% |
| Insoluble Matter | ≤ 0.1% | ≤ 0.5% | ≤ 0.2% |
| pH Value (1% water solution) | 3.5 - 5.0 | 3.5 - 5.0 | 3.5 - 5.0 |
| Arsenic (As) | ≤ 0.0002% | ≤ 0.0005% | ≤ 0.0002% |
| Lead (Pb) | ≤ 0.001% | ≤ 0.002% | ≤ 0.001% |
Tracing Wuxi BS Water Treatment's rise to a leading global water solution manufacturer.
Our production factory was established in Wuxi, beginning regional distribution of water treatment agents.
Rebranded as Wuxi Bisheng Water Treatment Agent Co., Ltd., expanding industrial production lines.
Launched global distribution networks, supplying chemical formulations to Southeast Asia and Oceania.
Annual sales volume crossed $10 million USD mark, driven by major municipal treatment contracts.
Established a dedicated overseas foreign trade department to provide factory-direct support to New Zealand clients.
Explore our complete inventory of coagulants, flocculants, and advanced decolorizers for all water purifications needs.
High-iron formulation that delivers dense, fast-settling flocs in heavily contaminated dairy and food processing effluents.
High cationic charge density polymer designed to neutralize negatively charged dissolved organic matter.
Ultra-high molecular weight polymer specifically designed for coal washing, mineral processing, and sediment control.
Yellow powder grade PAC optimized for industrial wastewater systems, offering efficient coagulation at a lower cost.
No-caking, low-dust premium powder. Designed for easy handling and dosing across automated chemical feed systems.
Combined iron and aluminium polymer for advanced biological wastewater plant sedimentation tanks.
High-performance organic cationic polymer that serves as an excellent coagulant aid in wastewater plants.
Proprietary multi-functional polymeric coagulant featuring highly active adsorption and charge neutralization dynamics.
Why PAC represents a major technological jump forward in flocculation speed and residual management.
Traditional Aluminium Sulfate (Alum) relies on simple hydrolysis in water to produce mononuclear aluminum ions, which are highly sensitive to pH variations and water temperatures. In contrast, Polyaluminium Chloride (PAC) is a pre-hydrolyzed macromolecular inorganic polymer. When introduced to raw water, it instantly releases highly charged polynuclear aluminum complexes, primarily the stable Keggin-structure Al13 polycation ([Al13O4(OH)24(H2O)12]7+).
This pre-formed oligomeric structure has a significantly higher positive charge density than monomeric aluminum ions, which allows it to neutralize the negative charges on colloidal particles (like clay, algae, and organic proteins) at much lower concentrations. Furthermore, because PAC is pre-hydrolyzed, it consumes less alkalinity in raw water. This minimizes the need for pH adjustment chemicals (like lime or caustic soda), protecting critical infrastructure from concrete and pipe corrosion.
This is particularly critical in New Zealand's South Island, where peat-rich waters and winter temperatures approaching freezing often hinder standard coagulation kinetics. High-basicity PAC formulations (80-90% basicity) maintain rapid coagulation speeds and form large, shear-resistant flocs even at temperatures below 4°C.
Everything you need to know about regulatory standards, technical selection, and import logistics.
Whether you manage a municipal water supply network, a commercial pulp and paper plant, or are a local distributor in Christchurch, Wellington, or Auckland, our engineers are ready to configure high-basicity PAC solutions optimized for your exact parameters.
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