In the rapidly evolving landscape of global water management, SDIC Granular for water treatment systems has emerged as an indispensable chemical agent. Sodium Dichloroisocyanurate (SDIC), a highly efficient, broad-spectrum, and stable chlorine-releasing compound, is revolutionizing how industries and municipalities approach water purification. Unlike traditional liquid bleach or calcium hypochlorite, SDIC granular offers unparalleled stability, prolonged shelf life, and a controlled release of hypochlorous acid (HOCl). This ensures a consistent biocidal effect, eliminating bacteria, viruses, algae, and fungi with remarkable precision. As water scarcity and stringent environmental regulations challenge modern industries, optimizing water treatment systems with SDIC granular is no longer just an operational choice—it is a critical commercial necessity.
The commercial and industrial landscape surrounding SDIC granular for water treatment systems is witnessing exponential growth. Driven by the increasing demand for clean drinking water, the expansion of industrial cooling systems, and the rigorous standards of wastewater discharge, the global market for SDIC is expanding at an unprecedented rate. Facilities managers, environmental engineers, and municipal planners are increasingly shifting towards SDIC because of its economic viability. The ease of transportation and storage—due to its solid, granular form—significantly reduces logistical costs and safety hazards associated with highly corrosive liquid disinfectants. Furthermore, SDIC dissolves rapidly in water without leaving insoluble residues, preventing the scaling and clogging of dosing pumps and pipelines, which translates to reduced maintenance costs and extended equipment lifespans.
The shift towards SDIC granular is driven by its exceptional cost-efficiency. By reducing freight costs and minimizing storage degradation, large-scale industrial plants achieve higher ROI on their chemical procurement budgets.
SDIC granular prevents biofilm formation and biofouling in complex piping networks. Its residue-free dissolution ensures that expensive membranes and heat exchangers remain uncompromised.
Meeting EPA and WHO standards is effortless with SDIC. It provides a reliable free available chlorine (FAC) residual, ensuring continuous disinfection compliance in both potable and wastewater systems.
Hebei Liuhe Chemicals Co., Ltd. was founded in 2015. The site is close to National Highway 339, only 65 km from the provincial capital and 10 km from the Ningjin exit of the Qingdao–Yinchuan Expressway, offering convenient transportation and an excellent geographical location. As a leading manufacturer of SDIC granular for water treatment systems, we integrate advanced technology with rigorous quality control.
Understanding the versatility of SDIC granular for water treatment systems requires a deep dive into its specific application scenarios. Each industrial sector faces unique challenges regarding water quality, microbial control, and system longevity, and SDIC offers tailored chemical mechanisms to address these issues effectively.
In municipal water treatment facilities, ensuring the safety of potable water is paramount. SDIC granular is utilized as a primary and secondary disinfectant. When added to water, it hydrolyzes to release hypochlorous acid at a steady rate. This controlled release is crucial for maintaining an adequate chlorine residual throughout extensive distribution networks, preventing recontamination as water travels from the plant to the consumer's tap. Furthermore, because SDIC contains cyanuric acid (a chlorine stabilizer), it offers superior resistance to UV degradation in open-air reservoirs compared to standard sodium hypochlorite. This makes SDIC granular an incredibly robust solution for rural and urban drinking water systems alike.
Cooling towers are notorious breeding grounds for Legionella pneumophila and various forms of algae and biofilm. Biofilm acts as an insulating layer on heat exchangers, drastically reducing thermal efficiency and increasing energy consumption. The application of SDIC granular for water treatment systems in these environments is highly effective. Its potent oxidizing power penetrates the protective polysaccharide matrix of biofilms, eradicating the underlying bacteria. By maintaining clear heat transfer surfaces, industrial plants can save millions of dollars annually in energy costs and prevent catastrophic system failures caused by microbiologically influenced corrosion (MIC).
In desalination and high-purity industrial water production, Reverse Osmosis membranes are highly susceptible to biofouling. While chlorine must be neutralized before water enters the RO polyamide membranes to prevent chemical degradation, the upstream raw water must be rigorously disinfected. SDIC granular provides an efficient pre-treatment bio-control mechanism. By dosing SDIC in the initial intake stages, operators can effectively knock down the microbial load, reducing the burden on ultrafiltration (UF) and RO systems, thereby extending the operational lifecycle of expensive membrane assets.
The recreational water sector heavily relies on SDIC granular. The built-in cyanuric acid stabilizer in SDIC prevents rapid chlorine loss due to sunlight exposure, making it the premier choice for outdoor pools. It ensures clear, safe, and hygienic water while minimizing the harsh chlorine odor and eye irritation often associated with chloramines. The fast-dissolving nature of the granules allows for quick shock treatments, rapidly restoring water balance after heavy bather loads.

With rich production management experience and mature global sales channels, Hebei Liuhe has developed into a large-scale chemical manufacturer, ensuring a stable supply of SDIC granular for water treatment systems globally. Our annual production capacities include:
As we look toward the future, the role of SDIC granular for water treatment systems is being reshaped by technological innovations and tightening global environmental frameworks. The intersection of artificial intelligence (AI), smart dosing technology, and green chemistry is creating a paradigm shift in how SDIC is utilized.
One of the most significant trends is the integration of AI-driven automated dosing systems. Historically, manual dosing of SDIC could lead to over-chlorination or under-chlorination, resulting in chemical waste or compromised water safety. Today, IoT-enabled sensors continuously monitor water parameters such as Oxidation-Reduction Potential (ORP), pH, and flow rates. These smart systems calculate the exact dosage of SDIC granular required in real-time, optimizing chemical consumption, reducing operational costs, and ensuring perfect compliance with safety standards. This AI-tech integration embodies the modern approach to sustainable water management.
Furthermore, global regulatory bodies like the EPA (Environmental Protection Agency) and European REACH are enforcing stricter guidelines on disinfection by-products (DBPs) such as trihalomethanes (THMs). SDIC granular, when dosed correctly, demonstrates a highly efficient conversion rate to active chlorine with minimal unwanted by-products compared to older chlorine gas systems. The ongoing research into advanced granulation techniques aims to create even more controlled-release profiles, allowing a single dose to provide residual protection for extended periods. As industries strive for zero-liquid discharge (ZLD) and enhanced water recycling, the reliability of SDIC granular for water treatment systems will solidify its position as the cornerstone of industrial water purification.
We operate advanced automatic production lines and precision testing laboratories, realizing automated and standardized production. Product quality is continuously optimized to ensure high stability and reliability.
Mission: At Hebei Liuhe, our mission is to provide reliable, efficient, and sustainable chemical solutions for global water treatment, environmental protection, and industrial applications. We are committed to becoming a trusted international partner by delivering consistent product quality, competitive value, and professional technical support.
Vision: Our vision is to contribute to a cleaner, safer, and healthier world through advanced chemistry and responsible manufacturing.
Our SDIC products are widely exported to Europe, America, Asia and many other regions. With high-quality products, reliable supply capability and professional service, we have established long-term cooperative relationships with customers worldwide.



This customer is a customized customer, and purchases SDIC Granular in large quantities every time for municipal disinfection.

Implementing our advanced SDIC solutions for biofouling control, ensuring massive energy savings.

Utilizing our SDIC granular for water treatment systems to meet strict environmental discharge regulations.

Providing stable pre-treatment disinfection to protect sensitive RO membranes from biological degradation.
We actively promote green production and energy-saving technologies. Wastewater, exhaust gas and solid waste are strictly managed in compliance with national environmental regulations. Meanwhile, we also actively practice environmental protection, workplace safety and responsible operation through our certified management systems, including ISO 9001:2015, SGS, and Carbon Footprint. We strive to build a sustainable and responsible chemical enterprise.







