China Sewage Treatment Works Manufacturer & Factory

High-Performance Water Treatment Chemicals Engineering Global Industrial Safety and Environmental Compliance

Premium Water Purification Chemistries

Explore our core product portfolio manufactured in our ISO-certified Wuxi facilities, engineered to handle complex waste loads and clarify heavy municipal and industrial effluents.

China CPAC Suppliers

Composite Poly Aluminum Chloride (CPAC) - High Performance Coagulant

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China PolyAluminium Chloride Liquid

PolyAluminium Chloride (PAC) Liquid - 10%-15% Active Ingredient

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Water decoloring agent

Water Decoloring Agent (WDA) - High Efficient Color Removal

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PDADMAC

Poly(diallyldimethylammonium chloride) (PDADMAC)

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PAFC

Polymeric Aluminium Ferric Chloride (PAFC) Water Solution

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APAM

Anionic Polyacrylamide (APAM) Flocculant for Fast Settling

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CPAM

Cationic Polyacrylamide (CPAM) for Sludge Dewatering

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High Purity PAC

High Purity Poly Aluminium Chloride (PAC-01) 10%-17%

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Macro-Industrial Wastewater Paradigm: Coagulation Dynamics and China’s Factory Advantage

In the contemporary landscape of global manufacturing, municipal growth, and ecological accountability, the optimization of sewage treatment systems has evolved from a regulatory checkbox to a core element of ESG (Environmental, Social, and Governance) strategies. The selection of precise polymer and coagulant matrices determines not only compliance with stringent regional standards—such as the European Union's Urban Waste Water Treatment Directive or the US EPA’s National Pollutant Discharge Elimination System (NPDES)—but also the direct operational efficiency, energy usage, and cost overhead of the primary wastewater infrastructure.

Key Insight (E-E-A-T Principle): Effective chemical dosing requires a matching balance of molecular weight, active content, and basicity. A mismatch of these parameters can cause colloidal stability issues, rising sludge volume, and excessive operational expenditure. Partnering directly with a foundational manufacturer allows for system adjustments tailored to the exact chemistry of the incoming water supply.

Chemical Mechanics: Understanding Coagulation and Flocculation

Coagulation and flocculation represent the heart of physical-chemical wastewater treatment. Suspended particles in sewage carry net negative electrical charges, forming stable colloidal suspensions that resist gravity settling. China’s premier chemical manufacturing units target this stability via two primary pathways:

  • Charge Neutralization: Multi-valent inorganic metallic salts like Polyaluminium Chloride (PAC) and Polymeric Aluminium Ferric Chloride (PAFC) introduce positively charged polynuclear aluminum/iron complexes. These neutralize the negative surface charge of the suspended solids, allowing them to collide and coalesce into microflocs.
  • Polymer Bridging: Long-chain organic polymers, specifically Cationic Polyacrylamide (CPAM) and Anionic Polyacrylamide (APAM), extend active chains into the liquid medium. The functional groups on these chains adsorb onto multiple microflocs, bridging them into dense, rapid-settling macroflocs that withstand hydraulic shear forces.

Wuxi BS Water Treatment Chemicals Co., Ltd. leverages 27 years of optimization to manufacture specialty agents like the Water Decoloring Agent (WDA) and PDADMAC. These compounds exhibit high charge densities to break down soluble organic chromophores, solving the color problems common in textile dyeing, paper mills, and petrochemical refineries.

A Technology Leader in Water Treatment Chemicals

Founded in 1998, Wuxi BS Water Treatment Chemicals Co., Ltd. (formerly Wuxi Bisheng Water Treatment Agent Co., Ltd.) integrates production technology with deep application experience. We specialize in synthesizing advanced water treatment chemicals for municipal drinking water plants and complex industrial wastewater systems.

With an active R&D division and direct control over raw material pipelines, we provide global municipal and industrial systems with stable chemical formulations, reliable capacity, and end-to-end technical support.

Wuxi BS Factory Floor
Wuxi BS Facilities
27+
Years Experience
500k+
Annual Tons Sold
20k+
Tons Storage Capacity
1000+
Global Partners

Product Categorization & Chemical Architecture

Our systematic product classification covers the full spectrum of modern physical-chemical precipitation, sludge conditioning, and color removal technologies.

Polyaluminium Chloride (PAC)

Available in solid spray-dried powder (yellow, light yellow, and white) and liquid forms. Basicity levels range from 50% to 90%, allowing for optimal neutralization in diverse water temperatures and pH values.

Aluminum Chlorohydrate (ACH)

Featuring high basicity (typically min. 83%) and maximum alumina (Al2O3) content. It reduces sludge volume and saves costs in municipal drinking water purification and chemical production processes.

Polyacrylamide (APAM & CPAM)

High molecular weight water-soluble polymers. Anionic versions provide rapid settling via charge neutralisation and bridging; cationic versions optimize sludge cake dry solids content in centrifuge or belt press operations.

Water Decoloring Agent

A dicyandiamide-formaldehyde copolymer with cationic active charges. Specially engineered to treat high-color effluents from textile dyeing, pigment manufacturing, ink processing, and paper mills.

PDADMAC

A strong cationic polymer containing quaternary ammonium salts. Stable over wide pH ranges, it serves as an effective primary coagulant and charge-neutralizing agent in industrial wastewater clarification.

Composite Polymeric Solutions

Our custom formulations, including Polymeric Aluminium Ferric Chloride (PAFC) and customized organic-inorganic hybrids, are designed to treat high-turbidity, low-temperature raw water sources.

OEM/ODM Manufacturing and Technical Capabilities

Wuxi BS provides dynamic customization options, tailoring chemical properties to meet your system's specific chemical oxygen demand (COD), total suspended solids (TSS), and pH profiles.

Technical Team

Technical Team

Experienced chemical engineers offering full-cycle water quality diagnostic services and customized chemical formulations.

Stable Capacity

Stable Capacity

Annual sales exceed 500,000 tons. A 20,000-ton finished product storage capacity secures shipments during seasonal demand peaks.

Worry-Free Supply

Worry-Free Supply

Automated manufacturing systems and a rigorous quality control program ensure batch-to-batch chemical consistency.

R&D Capability

R&D Capability

Continuous innovation in polymeric chain synthesis and inorganic-organic hybrids lowers overall chemical dosing requirements.

Global Logistics

Global Export

Delivering high-purity chemicals to global distributors, municipal utilities, and industrial buyers since 2007.

Custom Formulation Engineering (OEM/ODM Value Chain)

Industrial wastewater varies significantly across sectors and locations. Factors like ionic strength, organic molecules, and temperature affect the performance of standard off-the-shelf coagulants. Our ODM service model solves this variability. Wuxi BS conducts comprehensive jar test simulations using representative wastewater samples from your facility. We measure zeta potential, settling velocity, and sludge compaction index to optimize structural parameters like PAC basicity and PAM charge density. This tailored engineering helps reduce dosage requirements, decrease residual aluminum levels, and minimize sludge output, directly lowering your system's overall operational costs.

Industrial Application Matrix

Our products target key wastewater parameters across diverse sectors, including chemical oxygen demand (COD), biochemical oxygen demand (BOD), oil-water separation, and color reduction.

Sewage Treatment

Municipal Sewage Treatment

Using high-basicity PAC and Cationic PAM to accelerate settling in primary clarifiers and optimize sludge dewatering in belt presses and centrifuges.

Petroleum Industry

Petroleum & Petrochemical

Treating complex oil-field reflowing fluids, emulsified oily wastewater, and petrochemical refinery effluents with charge-specific flocculants.

Membrane Pretreatment

Membrane Process Pretreatment

Removing colloidal silica, suspended organic matter, and fine particles to prevent membrane fouling, extending the lifespan of reverse osmosis (RO) units.

Papermaking

Pulp & Paper Manufacturing

Formulated as retention and drainage aids to improve fiber recovery, clarify white water loops, and treat high-COD effluents.

Drinking Water

Drinking Water Treatment

High-purity PAC and ACH products conforming to food-grade standards (NSF/ANSI 60), ensuring minimal heavy metals in potable water supplies.

Customized Treatment

Specialty Industrial Operations

Providing specialized solutions for coal washing slurries, heavy metal precipitation, and textile dye decoloring using custom dicyandiamide derivatives.

Global Industrial Trends & Chinese Supply Chain Strengths

The global water treatment industry is undergoing a transition driven by carbon reduction goals, strict resource efficiency policies, and the adoption of digital technologies. Modern sewage treatment plants are optimizing operations to reduce energy consumption, minimize sludge generation, and recover resources.

Why Global Buyers Source Directly from Chinese Factories

China is a major hub for the production of coagulants and flocculants. Direct chemical sourcing from manufacturers like Wuxi BS offers several key supply chain benefits:

  1. Integrated Raw Material Chains: Our facilities have direct access to key regional raw materials (including high-grade bauxite, refined hydrochloric acid, and acrylamide monomers). This helps stabilize manufacturing operations and reduce the risk of pricing volatility.
  2. Advanced Solid-State Production: Wuxi BS utilizes advanced spray-drying systems rather than older drum-drying methods for solid PAC production. This produces fine granules with low dust, minimal caking, and rapid dissolution rates.
  3. Compliance and Quality Assurance: Modern Chinese production centers operate under strict national environmental policies. Our facilities are equipped with tail-gas scrubbers, wastewater recycling loops, and automated quality control testing. We supply chemical batches with certified molecular weight distributions and free monomer contents.

Additionally, Wuxi BS is located near Wuxi's transport network, providing quick rail and sea shipping routes to major international ports like Shanghai. This supports reliable transit times and cost-effective shipping for bulk industrial orders.

Our Strategic Evolution & History

A timeline of our development from a regional manufacturer to an internationally competitive chemical supplier.

1998

The factory was established, initiating the production of primary inorganic coagulants for local municipal systems.

2005

Officially renamed to Wuxi Bisheng Water Treatment Agent Co., Ltd., expanding synthesis capacity for organic polymers.

2007

Initiated export operations, supplying high-purity coagulants and flocculants to global distributors and industrial plants.

2020 - 2021

Annual sales surpassed 10 million USD. Upgraded production lines with automated packaging systems to reduce dust and caking.

2025 and Beyond

Established our dedicated Foreign Trade Department to support international partnerships and introduced advanced digital solid feeding equipment.

Rewards & Achievements

Quality and environmental compliance validated by international certification standards.

Wuxi BS Honors
ISO Cert 1 ISO Cert 2 ISO Cert 3 ISO Cert 4 ISO Cert 5 ISO Cert 6 ISO Cert 7 ISO Cert 8

Expert FAQ: Technical Solutions & Procurement Guidelines

Detailed technical answers to common questions about water treatment chemistry, dosage, and quality control.

What is the difference between spray-dried and drum-dried Polyaluminium Chloride (PAC)?

Spray-dried PAC is manufactured by atomizing liquid PAC into a drying chamber. This produces fine, uniform particles that dissolve quickly, leave minimal insoluble residue, and maintain stability. Drum-dried PAC is dried on heated drums, yielding larger flakes with slightly higher insolubles, often suitable for industrial processes where minor residues are acceptable.

How do I choose between Anionic (APAM) and Cationic (CPAM) Polyacrylamide?

The choice depends on the electrical charge of the suspended particles. Cationic Polyacrylamide (CPAM) is typically used for organic solids, such as municipal sewage sludge and bio-solids, which carry negative charges. Anionic Polyacrylamide (APAM) is suited for inorganic mineral suspensions, industrial slurries, and metal hydroxide flocs.

How does coagulant basicity affect treatment performance?

Basicity is the ratio of hydroxyl ions to aluminum ions in the polymer. High-basicity coagulants like Aluminum Chlorohydrate (ACH) have a strong cationic charge density. This allows for effective charge neutralization at lower dosages, limits pH drops in the treated water, and reduces total sludge volume.

Can your Water Decoloring Agent treat dye wastewater with high salinity?

Yes. Our Water Decoloring Agent (WDA) is designed to operate in high-salinity and high-color systems. Its cationic structure helps destabilize colored organic molecules, allowing them to coagulate and settle even in complex wastewater matrices.

What standards do your products conform to for potable water treatment?

Our drinking-water grade PAC and ACH products are manufactured to limit heavy metals (like Arsenic, Lead, and Cadmium) to levels compliant with NSF/ANSI Standard 60, EN 883, and standard municipal specifications.

TO KNOW MORE ABOUT BS, PLEASE CONTACT US!

Our technical experts are available to discuss product specifications, custom formulations, and global shipping logistics.

Wuxi BS Water Treatment Chemicals Co., Ltd.
Wuxi, Jiangsu Province, China.

Submit your wastewater parameters and target metrics below. Our technical team will review and contact you with recommended chemical formulations.

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Latest Industry News & Technical Updates

Read about our recent projects, production line upgrades, and chemical research updates.

Wuxi BS Global Expansion
Calendar Icon Sep 09, 2025

Wuxi BS Water Treatment: From Local Deep Dive to Global Layout

Wuxi BS Water Treatment Chemicals Co., Ltd. continues to expand its global distribution network, supplying high-performance coagulants and flocculants to partners in Europe, the Americas, and Southeast Asia...

Digital Equipment
Calendar Icon Aug 21, 2025

Digital Intelligent Solid Feeding Equipment Launched

Officially launched advanced digital intelligent solid feeding equipment to optimize dosing precision in heavy industrial applications...

2025 Conference
Calendar Icon Aug 21, 2025

2025 Innovation and Development Conference Highlights

BS team participated in key debates on 'Beautiful China' construction, carbon neutrality targets, and green chemical synthesis...

Wholesale Solutions & Bulk Packaging

Explore our wholesale packaging configurations for global distribution. We supply stable, high-purity coagulants and flocculants for large-scale operations.

Wholesale APAM

Wholesale Anionic Polyacrylamide (APAM) Flocculant for Water Treatment

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Wholesale PAC Liquid

Wholesale Polyaluminium Chloride (PAC) Liquid - 10%-15% Active Ingredient

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Wholesale WDA

Wholesale High Efficient Water Decolorizing Agent (WDA) for Wastewater

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Wholesale Anionic Polyacrylamide

Wholesale Anionic Polyacrylamide (APAM) - Premium Flocculant Factory

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Wholesale PAC Liquid Transparent

Wholesale PAC Liquid - Colorless Transparent 10%-15% Active

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PAC Granules

China High-Quality Poly Aluminium Chloride (PAC) Granules - Low Dust

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Wholesale CPAC

Wholesale Compound Poly Aluminium Chloride Manufacturer & Factories

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High Purity PAC-01

China High Purity Poly Aluminium Chloride (PAC-01) for Water Treatment

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