Engineered to optimize flocculation, de-colorization, and suspended solids separation in high salinity environments.
Integrating advanced macromolecular flocculants and chemical precipitation processes to solve global desalination challenges.
As fresh water scarcity intensifies globally, seawater desalination has transitioned from a niche coastal remedy to a primary pillar of municipal water security and industrial progress. The primary workhorse of this transition is modern membrane filtration—specifically, Reverse Osmosis (RO). However, the operational survival, efficiency, and cost-effectiveness of RO plants hinge entirely upon the upstream chemical pretreatment sequence. Raw marine water contains a complex matrix of dissolved ions, particulate matter, colloidal silicas, microalgae, macromolecular organic humic substances, and marine microorganisms. Without precise coagulant dosing, these matrix elements cause severe fouling, biofouling, and scaling of expensive RO membranes.
Our work at Wuxi BS Water Treatment Chemicals Co., Ltd. centers around formulating advanced chemical solutions—including Polyaluminium Chloride (PAC), Polyacrylamide (PAM), Aluminum Chlorohydrate (ACH), and Poly(diallyldimethylammonium chloride) (PDADMAC)—that neutralize colloidal charges, agglomerate micro-suspensions, and ensure that the incoming feed water meets the strict Silt Density Index (SDI) and turbidity parameters required by membrane systems.
Seawater colloids carry net negative charges that repel one another, remaining in stable suspension. The addition of highly cationic polymers, such as PDADMAC or CPAM, delivers high positive charge density. This destabilizes the colloidal suspension, enabling micro-flocs to gather and grow into large, shear-resistant flocs that are easily filtered by sand filters or ultrafiltration (UF) systems.
Optimal pretreatment decreases the SDI (Silt Density Index) of feed water to under 3.0. Dosing customized Polyaluminium Chloride (PAC) or Aluminum Chlorohydrate (ACH) reduces membrane fouling rates, leading to fewer clean-in-place (CIP) cycles, reduced chemical waste, and an extended RO membrane lifespan of up to 5 to 7 years.
The global dominance of China-based chemical factories in water purification is not merely a product of cost-efficiency; it is built on integrated supply chains, intense R&D investment, and massive production capacities. Located in the industrial heartland of Wuxi, our facility benefits from direct access to high-grade raw inputs (such as high-purity alumina and hydrochloric acid) and a robust logistics network capable of reliable international shipping.
By operating automated, continuous production lines, Chinese factories maintain high consistency in molecular weight and active content percentage across batches. For example, our annual sales volume exceeding 500,000 tons is backed by a constant finished product inventory of over 20,000 tons. This structural capacity protects global distributors and municipal procurement departments against raw material shortages and pricing shocks, providing a stable supply chain anchor.
Seawater purification chemistry varies depending on the destination industry. We design tailored solutions for several major marine applications:
The seawater purification chemical industry is shifting toward environmental safety and digital control. There is a strong focus on biodegradable flocculants that reduce the chemical footprint on surrounding marine ecosystems upon discharge. Concurrently, smart sensor-based automated chemical dosing is becoming standard practice. Real-time monitoring of feed water salinity, temperature, and turbidity dynamically adjusts PAC, ACH, or PAM dosing levels. This prevents both under-dosing (leading to fouling) and over-dosing (which can coat membrane surfaces with excess polymer), optimizing chemical consumption.
Founded in 1998, Wuxi BS Water Treatment Chemicals Co., Ltd. possesses advanced production technology and rich management experience. We specialise in producing a series of water treatment products for the treatment of drinking water and various types of domestic and industrial wastewater.
Our facility spans fully optimized production lines with integrated digital control systems, offering robust ODM and OEM capabilities to major water utility networks and international distributors. Since 2007, our products have been exported globally via distributors, proving their reliability under diverse environmental and chemical conditions.
Providing custom formulations, variable active ingredient content, and specialized packaging configurations.
Our dedicated technical team provides full-cycle services including water quality analysis, custom dosage recommendation, and on-site testing protocols.
Our annual sales volume exceeds 500,000 tons, supported by a finished product warehouse of over 20,000 tons, ensuring consistent supply.
Equipped with intelligent production lines and a full-process quality control system (ISO9001/14001) to ensure zero defect delivery batches.
Driving continuous innovation in product performance, active content purification, and environmental impact reduction since 1998.
Our development journey in the water purification chemical sector over the decades.
Expert insights on seawater pre-treatment, chemical selection, and membrane life optimization.
Reach out to our technical sales team for custom formulations, specification sheets, and bulk wholesale pricing.
Tel: +86 13584221461
Email: [email protected]
*Our technical support team typically responds to inquiries within 12 hours.
High-basicity ACH, PDADMAC solutions, and cationic flocculants for industrial wastewater purification.
BS Water