High-Basicity Chemical Coagulants for Advanced Municipal Water Treatment and Industrial Applications
Pioneering water purification systems with high active content polymeric inorganic salts for precise chemical dosing.
The United Kingdom's water sectors are currently experiencing a historic period of regulatory tightening and operational optimization. With the progression of the Water Services Regulation Authority (Ofwat) Asset Management Periods (AMP7 and the transition to AMP8), water utilities such as Thames Water, Severn Trent Water, and United Utilities are facing stringent discharge consents enforced by the Environment Agency (EA). Specifically, target limitations for residual phosphorus (P-removal), chemical oxygen demand (COD), and total suspended solids (TSS) have dropped to near-zero levels in sensitive river catchments across England and Wales.
Aluminum Chlorohydrate (ACH) has emerged as the premier chemical coagulant to help UK water companies address these demanding constraints. As a highly polymerized inorganic aluminum compound, ACH offers a high active concentration (expressed as Al2O3, typically up to 23-24% in liquid form and 46-48% in solid form) and a high basicity index (83%-84%). This allows operators to reduce consumption rates by 30% to 50% compared to traditional metal salts like aluminum sulfate (alum) or ferric sulfate, generating less chemical sludge and keeping operating costs under control.
Coagulation dynamics change dramatically during the cold winter seasons in the United Kingdom. Surface water temperatures in Scottish reservoirs and northern rivers frequently dip below 4°C. At these temperatures, the hydrolysis rate of traditional monomeric coagulants decelerates, leading to micro-floc formation issues, elevated residual aluminum values in drinking water, and reduced process efficiency.
Wuxi BS Water Treatment's ACH is engineered with highly polymerized aluminum species, predominantly centered around the stable Al13 poly-cation ([$Al_{12}O_4(OH)_{24}(H_2O)_{12}]^{7+}$) and the larger Al30 structures. Because these macromolecular species are pre-hydrolyzed during manufacture, their efficiency is virtually independent of cold water temperatures. Additionally:
As the UK strives toward a Net-Zero economy by 2050, municipal and industrial plants must cut carbon emissions throughout their chemical supply chain. Incorporating high-basicity ACH contributes to decarbonization targets in multiple ways:
First, shipping a chemical with double the active concentration of standard alum means transportation weights are halved. This reduces truck deliveries to remote UK water treatment works and cuts Scope 3 carbon emissions. Second, the reduction in chemical sludge volumes translates to fewer diesel truck loads transferring sludge to digestion hubs or land application sites. Finally, because our manufacturing facility employs advanced energy recovery and digital process control systems, the embedded carbon footprint of our ACH is lower than that of conventional, legacy coagulants.
Aluminum Chlorohydrate serves more than just municipal water utilities. Our specialized products cater to three primary UK industrial segments:
In the Scottish, Welsh, and English packaging mills, ACH is used as an anionic trash catcher (ATC). It neutralizes charges in recycling pulp loops, controls pitch deposits, and improves retention rates without altering process pH.
For UK personal care brands, our high-purity ACH acts as the key antiperspirant active. We enforce strict limits on iron, heavy metals, and particulate trace impurities to meet the requirements of EU/UK Cosmetics Regulations.
From automotive assembly rinse-waters in the Midlands to chemical processing effluents in Teesside, ACH clears emulsified oils and metal precipitates at high rates, protecting membrane bioreactors (MBR).
Established in 1998, Wuxi BS Water Treatment Chemicals Co., Ltd. has spent over 27 years building a reputation as a leading manufacturer of water treatment chemicals. We operate state-of-the-art chemical manufacturing facilities designed to provide high-purity, stable coagulants and flocculants globally. Our products are exported via trusted distributors to Europe, Southeast Asia, the Americas, and the UK. With highly automated production lines and comprehensive testing labs, we deliver reliable chemicals that comply with international water-quality standards.
Seamless chemical supply chain operations from our plants directly to your domestic distribution centers and industrial facilities.
Following the UK's transition out of the European Union, chemical imports must comply with the UK REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) regulatory regime. Wuxi BS works in close alignment with UK-based Only Representatives (OR) to manage registrations, verify tonnage coverage, and maintain compliance. This ensures uninterrupted deliveries of Aluminum Chlorohydrate (ACH) and PAC to UK distributors and end-users.
Additionally, our products meet BS EN 887 specifications (Chemicals used for treatment of water intended for human consumption - Aluminum Chlorohydrate). Detailed safety dossiers, including COSHH assessment-ready Safety Data Sheets (SDS), are provided with every batch to simplify local regulatory compliance.
Wuxi BS operates complex, multi-modal supply chains to guarantee delivery times for UK buyers. Leveraging our massive 20,000+ ton finished storage capacity, we cushion seasonal logistics bottlenecks. Shipments are regularly cleared through key British sea terminals, including the Port of Felixstowe, Port of Southampton, and London Gateway. Delivery formats include:
Integrating artificial intelligence, chemical design, and sustainability into modern water treatment.
Wuxi BS factory was founded, focusing on the production of basic polyaluminium coagulants for local industrial wastewater treatment.
Launched our global division. Achieved ISO 9001 certification and established a supply network serving European industrial clients.
Annual global sales exceeded $10 million. Upgraded manufacturing capacity and introduced advanced testing laboratories for municipal-grade ACH.
Deploying smart dosing support tools. Integrating AI models with automatic feeding equipment to help plants optimize chemical consumption.
Get answers to the most common questions raised by procurement managers, process engineers, and compliance officers.
A complete chemical range developed for municipal, paper, textile, and petrochemical applications.
Consult with our application specialists to optimize your coagulation dosing parameters, establish shipping arrangements, and secure bulk pricing for the UK market.
BS Water
