Engineered for high-efficiency coagulation in cold climates, complying with European standard specifications.
Sweden is globally recognized for its strict environmental standards under the jurisdiction of the Swedish Environmental Protection Agency (Naturvårdsverket). When sourcing coagulants like Polyaluminium Chloride (PAC), Swedish municipal drinking water authorities and industrial plants require chemicals that exhibit ultra-low heavy metal concentrations, high solubility, and reliable performance at water temperatures hovering near 0°C.
In Sweden, the pulp and paper industry, municipal wastewater facilities, and surface water treatment operations constitute the primary demand centers for PAC. Due to the high humic content of typical Swedish surface waters, highly basic PAC complexes are required to effectively neutralize organic acids and destabilize suspended colloidal particles without heavily altering water pH.
Conventional alum coagulants struggle in water below 4°C, leading to slow floc formation. BS Water's PAC features a pre-polymerized structure that guarantees immediate hydrolysis and flocculation, maintaining target turbidity limits in Swedish winters.
Optimized basicity (up to 85%) means fewer free aluminum ions remain in the treated water, minimizing post-precipitation risk and optimizing sludge settling characteristics for Swedish regulatory compliance.
We provide full chemical transparency, offering batches that completely satisfy ECHA specifications and align with Swedish KemI regulations regarding toxic heavy metal control limits.
Not all Polyaluminium Chloride products behave identically. Standard PAC consists of monomers, dimers, and intermediate polymeric aluminum species. In contrast, BS Water's proprietary manufacturing process yields a higher proportion of [Al12O4(OH)24(H2O)12]7+ (Al13) and [Al30O8(OH)56(H2O)24]18+ (Al30) polycations. These large pre-formed polymeric networks possess exceptionally high positive charges, enabling rapid charge neutralization of negatively charged colloids (such as humic acids, fine clays, and organic fibers) common in Swedish lakes and rivers.
For industrial buyers, this structural configuration directly correlates with reduced dosing requirements (sometimes up to 40% lower compared to standard aluminum sulfate), lower volume of chemical sludge generated, and minimal drop in the pH of the treated effluent. This technical advantage translates to lowered operational expenditure (OPEX) and smaller environmental footprints for municipal water boards.
| Parameter | Solid Powder Spec | Liquid Spec |
|---|---|---|
| Active Al2O3 Content | 28% - 30% min | 10% - 17% min |
| Basicity | 50% - 85% | 40% - 80% |
| Insoluble Matter | 0.3% max | 0.1% max |
| pH (1% water solution) | 3.5 - 5.0 | 3.5 - 5.0 |
| Heavy Metals (as Pb) | < 0.001% (10 ppm) | < 0.0005% (5 ppm) |
As a leading chemical manufacturer founded in 1998, Wuxi BS Water Treatment Chemicals Co., Ltd. operates state-of-the-art synthesis lines to control the spray drying process. By employing direct high-pressure atomization, we yield a highly uniform micro-spherical powder that does not cake, creates negligible dust when handled, and dissolves rapidly.
With an annual production capacity surpassing 500,000 tons and dedicated export logistics channels, we guarantee direct freight delivery to major Swedish ports (Göteborg, Stockholm, Helsingborg) with complete documentation, MSDS, and Certificate of Analysis (COA) for every batch.
Request Custom Batch SampleProviding specialized solutions designed to cope with regional water chemistry and environmental standards.
Wuxi BS Water Treatment offers tailorable chemical formulations and packaging options designed for reliable supply chains.
Full water-quality analysis and tailor-made dosage instructions for local Swedish industrial plants.
With an annual output exceeding 500,000 tons, we eliminate chemical supply chain risks.
Fully compliant packaging, safe cargo storage, and rapid shipping channels direct to Northern Europe.
Developing next-gen water flocculants focusing on reduction of sludge environmental load.
Exporting high-performance coagulants globally since 2007, strictly adhering to EN ISO standards.
A history of technological evolution in water treatment chemical synthesis.
Our extended catalog designed for secondary wastewater treatment, sludge dewatering, and membrane filtration processes.
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Sep 09, 2025
Expanding our international footprint by integrating high-quality delivery frameworks and custom chemical production lines catering to strict European standards.
Aug 21, 2025
Our newly engineered automatic chemical feeding solutions enhance dissolving rates, enabling Swedish processing facilities to eliminate manual dosing deviations.
Aug 21, 2025
Discussing technical strategies for low-carbon manufacturing processes of aluminum-based salts, helping industrial consumers reduce carbon footprint liabilities.
Essential guidance on chemical parameters, cold-water application, and shipping compliance standards.
A: Conventional aluminum sulfate (alum) hydrolyzes slowly in water below 4°C, requiring higher dosages and generating loose, slow-settling flocs. BS Water's PAC is chemically pre-polymerized, meaning its flocculation performance relies less on water temperature. This ensures rapid aggregation of humic substances and suspended particles even during the Swedish winter season.
A: High humic acid concentrations require a balance between charge neutralization and pH control. High-basicity PAC (above 75%) introduces highly charged polymers like Al13 and Al30, which quickly neutralize anionic organic charges without severely lowering water pH, eliminating the need for extensive alkaline additives.
A: European drinking water standards require ultra-low residual metals in treatment chemicals. Wuxi BS Water implements high-purity raw material selection (purified alumina and hydrochloric acid) to keep trace arsenic, lead, cadmium, and mercury levels far below the limits defined in standard EN 883 (Chemicals used for treatment of water intended for human consumption).
A: Liquid PAC contains roughly 10% to 17% Al2O3. While we offer direct supply of liquid PAC, shipping liquid bulk long distances can increase overall logistics costs. Therefore, we highly recommend our spray-dried high-purity solid powder, which can be easily re-dissolved at municipal or industrial stations in Sweden, yielding substantial savings on shipping weights.
A: We provide high-durability packaging designed for industrial handling: 25 kg bags with PE inner liners, or large 1000 kg container bags (Jumbo Bags) with moisture barriers, which are well-suited for automated powder dissolving systems used in paper mills.
Get in touch with our engineers for custom specifications, test samples, and volume-based pricing for the Sweden market.
Tel: +86 13584221461
Email: [email protected]
BS Water