ODM Sodium Hypochlorite Granules Manufacturer & Exporter

Global-Grade Industrial Disinfection Solutions, Sustained Chlorine Release, and Custom OEM Chemical Formulation

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Executive Summary: Elevating Global Water Disinfection Standards

In the critical landscape of industrial disinfection and environmental purification, Smedic Technology Co., Ltd. serves as a premier research-backed ODM manufacturer and global exporter.

In modern environmental chemistry, liquid sodium hypochlorite continues to present storage and transport challenges. Thermal degradation, rapid active chlorine loss, and safety concerns during bulk transport drive global buyers toward solid, high-efficiency disinfectants. As an industry leader in customized synthesis, Smedic Technology addresses this shift by manufacturing advanced granular disinfection complexes, engineered for high thermal stability, controlled dissolution, and maximum pathogen inactivation.
Since our establishment in 2011, Smedic Technology has evolved into a key player in municipal wastewater disinfection, industrial cooling water biocides, mineral processing reagents, and advanced oilfield chemical solutions. Backed by joint laboratories with top-tier academic institutions and holding over 60 Chinese patents, Smedic combines production scale with customized OEM/ODM services. This allows us to provide targeted formulations that meet local regulatory requirements across Europe, North America, the Middle East, and the Asia-Pacific.
2011
Company Established
Over a decade of environmental engineering excellence
1M+
Tons Annual Capacity
Proprietary and joint-venture manufacturing bases
80+
Chemical Formulations
Comprehensive catalog of water treatment solutions
20M+
Tons Daily Treatment
Serving 600+ municipal plants and 1,000+ industrial entities

1. Chemical Dynamics and Granular Solidification Technology

Understanding active halogen degradation profiles and the mechanics of sustained dissolution control.

Sodium hypochlorite in its liquid state is inherently unstable due to the auto-decomposition reaction pathway, accelerated by temperature, light, and transition metal ions:

3 OCl⁻ → ClO₃⁻ + 2 Cl⁻

By shifting to high-density solid granular matrices, we address this issue. Smedic’s dry-method compound crystallization and solid-state carrier processes lock active chlorine in stable ionic crystal lattices. In water, these granules hydrolyze to yield free available chlorine (FAC) in the form of hypochlorous acid (HOCl) and hypochlorite ions (OCl⁻):

Ca(OCl)₂ + 2 H₂O → 2 HOCl + Ca(OH)₂

Our ODM manufacturing processes allow us to adjust granule size, porosity, and binders. This enables precise control over dissolution rates, preventing chemical waste and preventing high initial concentrations that can cause localized corrosion in piping networks.

Active Ingredient Specifications & Advantages

  • High Free Available Chlorine (FAC): Optimized grades ranging from 60% to 70% active matrix.
  • Thermal Stability: Resistant to decomposition under typical shipping conditions.
  • Anti-Caking Additives: Enhanced shelf-life and dust-free flowability.
  • Controlled Dissolution: Custom granule sizes (8-30 mesh, or fine micro-granules).

2. Macro-Level Industrial Solutions & Infrastructure Projects

Deploying high-efficiency solid biocide systems across key industrial sectors and municipal infrastructure.

Municipal Water Infrastructure

Used as a primary disinfectant in municipal tap water networks and sewage treatment plants. Effectively targets Escherichia coli, Vibrio cholerae, and spore-forming pathogens, helping municipal plants meet microbiological discharge limits.

Cooling Towers & Heat Exchangers

Prevents biofouling and controls Legionella pneumophila in recirculating cooling water. The granular formula works alongside scale and corrosion inhibitors to keep heat transfer surfaces clean and maintain process efficiency.

Petrochemical & Oilfield Reinjection

Controls sulfate-reducing bacteria (SRB) in oilfield water reinjection systems, preventing microbiological corrosion of pipelines and avoiding souring of underground oil deposits.

Manufacturing Footprint, Logistics Infrastructure, and Production Scale

Headquartered in Beijing, Smedic Technology operates a structured domestic and international supply chain. We maintain fully owned production bases in Hebei, Guizhou, and Shanxi, and have established more than ten partner factories and regional warehousing hubs across Shandong, Shanxi, Anhui, Guangxi, and Sichuan.
This distributed network allows us to ship chemical products efficiently to ports in Tianjin, Qingdao, and Shanghai. It ensures short lead times for international distributors, municipal groups, and mining conglomerates.
With a combined annual output exceeding 1 million tons, Smedic manages high-volume ODM production runs while maintaining strict batch-to-batch quality control.
Smedic Production Facility and Laboratories

R&D Partnerships, Intellectual Property, and National Recognition

A technical infrastructure supported by leading research institutions and recognized by national environmental programs.

Academic R&D Stations

Smedic operates an expert workstation in collaboration with the Tsinghua University Association of Senior Scientists and Technicians. We also run joint R&D laboratories with Shandong University and Beijing University of Technology to commercialize advanced wastewater treatment technologies.

Patented Technologies

We hold over 60 Chinese patents, including 40+ invention patents and 20+ utility model patents. Smedic’s bio-enhanced denitrification carbon sources and deep multi-nuclear phosphorus removal agents have been evaluated as "internationally advanced" by the Science and Technology Department of Hebei Province.

Industrial Standardization

Smedic has led the drafting of over ten national and industry standards. These cover composite carbon sources, composite coagulants, sodium acetate, and nitrifying/denitrifying bacterial agents, helping to guide regulatory frameworks in Chinese water treatment sectors.

Smedic Qualification Certificate
Smedic Enterprise License
Quality Management System Certificate
Environmental Standard Certification
Smedic Laboratory Testing Credentials
Patent Award Verification

3. Localized Applications and Industrial Field Operations

Practical integration guidelines across gold mining cyanidation, textile wastewater treatment, and cooling loop biocide injection.

Alkaline Chlorination in Mining

In gold cyanidation and flotation circuits, toxic cyanide ions (CN⁻) must be oxidized prior to discharge. Smedic's sodium hypochlorite granules generate active HOCl, which converts cyanide to cyanate (CNO⁻) under alkaline conditions (pH 10-11.5). This reaction degrades cyanate into carbon dioxide and nitrogen gas:

2 CN⁻ + 5 OCl⁻ + 2 OH⁻ → N₂ + 2 CO₃²⁻ + 5 Cl⁻ + H₂O

Textile & Dyeing Effluent Decoloration

Textile wastewater contains recalcitrant azo dyes with chromophore groups (-N=N-). The active chlorine released by our granules acts as an oxidizing agent, breaking these double bonds. This decolorizes the water and reduces chemical oxygen demand (COD) before biological secondary treatment.

Legionella Prevention in Commercial HVAC

Commercial HVAC systems and cooling towers are vulnerable to Legionella and slime-forming bacteria. Periodic shock dosing of granular disinfectants disrupts biofilms and helps prevent outbreaks, ensuring compliance with local environmental health and safety regulations.

Advanced Environmental Chemical R&D Facility

4. Technical Roadmap & Future Innovations

Smedic’s chemical R&D group focuses on improving the stability and environmental footprint of solid halogenated biocide complexes. Our current research roadmap targets three main areas:
Encapsulation and Sustained Release
Developing micro-encapsulated granules that dissolve based on water temperature and flow rate, helping to extend dosing intervals in remote industrial and mining areas.
Low-Residue Formulations
Reducing chloride ions and chlorate byproducts in treated discharges to minimize environmental impact on aquatic ecosystems.
AI-Driven Automated Dosing Systems
Integrating real-time oxidation-reduction potential (ORP) sensors with automated dry feeders to match active chlorine dosing to biological demand.

Corporate History & Key Milestones

From a specialized environmental company to a key national high-tech enterprise.

2011 - 2015

2011
Smedic was founded, focusing on municipal and industrial environmental agents.
2014
Established a comprehensive product portfolio for municipal wastewater treatment.
2015
Recognized as a key national high-tech enterprise.

2016 - 2020

2016
Opened our primary water treatment production base in Guiyang.
2018
Expanded production bases in Hebei and Shandong, with total capacity exceeding 1 million tons.
2020
Recognized as a National Specialized, Refined, Unique and Innovative Small and Medium Enterprise.

2021 - 2024

2021
Established our provincial-level R&D platform in Hebei Province.
2023
Recognized as a National Intellectual Property Advantage Enterprise.
2024
Formed a joint venture with the Chengdu Institute of Mineral Comprehensive Utilization, China Geological Survey.

5. Global Compliance, Logistics, & Safety Standards

Exporting industrial chemicals requires compliance with chemical safety regulations. Smedic's manufacturing and packaging systems are designed to meet international standards for hazardous materials transport:
  • UN-Certified Packaging: Available in 25kg, 40kg, and 50kg high-density polyethylene (HDPE) drums. These containers are moisture-proof, UV-resistant, and include pressure-relief vent valves.
  • Compliance & Registrations: Smedic assists ODM partners in meeting requirements for REACH (EU), EPA registration (US), and other regional biocidal product frameworks.
  • Logistics Safety: Granules are classified under UN 1748 (Oxidizing substances, Class 5.1). We provide full safety documentation, including Safety Data Sheets (SDS) and international marine cargo clearance certificates.
Packaging Logistics and Certification Standards

Frequently Asked Questions

Common technical questions regarding industrial biocides and granular active chlorine complexes.

What makes Smedic’s solid granular formula different from liquid sodium hypochlorite?

Liquid sodium hypochlorite (bleach) degrades quickly over time, particularly under exposure to heat, light, or air. Solid granular formulations lock active chlorine within a stable chemical lattice. This extends shelf life, lowers bulk shipping costs, and reduces safety risks during transport.

Which chemical packaging configurations are available for export?

We offer UN-approved packaging options, including 25kg, 40kg, and 50kg drums equipped with integrated venting caps to prevent gas build-up. We also support customized OEM labeling and packaging designs to meet target market regulations.

How does the dissolution rate of Smedic’s granules compare to standard chlorine tablets?

We offer customizable dissolution rates. Standard tablets dissolve slowly for low-flow environments, while our granular products are designed for faster dissolution, providing rapid sanitization during peak flow periods in municipal and industrial plants.

Does Smedic offer custom formulation services (ODM/OEM) for specific water chemistry needs?

Yes. Our technical team works with partners to customize active chlorine levels, adjust dissolution rates, and add targeted anti-caking or scale-prevention additives to suit specific water chemistry profiles.

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