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Our core flocculant products are specifically formulated to achieve superior oil-water separation performance in demanding industrial environments.
Organic flocculants are high-molecular-weight polymer compounds — most commonly polyacrylamide (PAM) derivatives, polyamine-based agents, and bio-based natural polymers — that function by destabilizing emulsified oil droplets suspended in water. Through charge neutralization, bridging, and sweep flocculation mechanisms, these agents aggregate fine oil particles and suspended solids into large, settleable flocs that can be efficiently removed by gravity sedimentation, dissolved air flotation (DAF), or filtration systems.
In contrast to inorganic coagulants such as aluminum sulfate or ferric chloride, organic flocculants offer significantly higher molecular weight, stronger bridging capability, lower dosage requirements, and reduced sludge generation. When used in combination with inorganic coagulants (a strategy known as composite flocculation), organic flocculants dramatically improve the oil removal efficiency, turbidity reduction, and COD removal in produced water, refinery effluents, and industrial oilfield wastewater streams.
Oil droplets in industrial wastewater carry negative surface charges that prevent natural coalescence. Organic flocculants — especially cationic polyacrylamide (CPAM) — neutralize these charges while simultaneously bridging multiple droplets together, forming macro-flocs that are 50–200× larger than the original particles, enabling rapid and complete phase separation.
The global organic flocculant market for water treatment and oil-water separation was valued at over USD 5.8 billion in 2023 and is projected to exceed USD 9.4 billion by 2030, driven by tightening environmental discharge standards, expanding oilfield operations, and the rapid growth of shale gas and offshore drilling activities worldwide. Asia-Pacific — led by China — accounts for the largest share of consumption, with China's domestic market growing at a CAGR of approximately 8.2% annually.
Modern organic flocculants reach molecular weights of 8–25 million Da, providing exceptional bridging across dispersed oil droplets and colloidal particles for rapid floc formation.
Achieves oil removal rates exceeding 95% in produced water treatment and refinery wastewater, meeting Class I discharge standards with minimal residual oil content (<5 mg/L).
Organic flocculants generate 30–60% less sludge compared to inorganic alternatives, reducing disposal costs and environmental impact in compliance with green manufacturing standards.
Rapid dissolution and activation at low dosages (1–5 mg/L typical) enables high-throughput continuous treatment systems to maintain stable performance under variable influent conditions.
Available in anionic (APAM), cationic (CPAM), and non-ionic forms with adjustable charge densities from 10% to 80%, allowing precise optimization for each specific wastewater matrix.
Seamlessly integrates with dissolved air flotation, membrane bioreactor, and centrifugal separation systems, enhancing overall system performance and extending membrane lifespan.
From upstream oilfields to downstream refineries and urban wastewater plants, organic flocculants serve as the backbone of modern oil-water separation technology across six critical sectors.
Produced water from oil and gas wells contains emulsified crude oil, suspended solids, dissolved salts, and residual chemicals. Organic flocculants — particularly high-molecular-weight APAM and CPAM — are dosed at the primary separation stage to break stable emulsions and aggregate dispersed oil droplets. In offshore platforms, where space is limited, fast-acting cationic flocculants combined with DAF units achieve oil-in-water concentrations below 15 mg/L within minutes, meeting MARPOL discharge requirements.
Refinery wastewater contains complex mixtures of free oil, emulsified oil, dissolved hydrocarbons, phenols, and heavy metals. A composite flocculation strategy — combining inorganic coagulants with organic polyacrylamide flocculants — achieves COD removal rates of 70–85% and oil removal exceeding 97%. Smedic's inorganic-organic covalent bond flocculant technology, awarded the 22nd China Patent Award, has demonstrated breakthrough performance in refinery API separator effluent polishing, reducing total petroleum hydrocarbons (TPH) to below 5 mg/L.
Metalworking fluids and cutting oil emulsions present one of the most challenging oil-water separation tasks due to the presence of surfactant-stabilized micro-emulsions with droplet sizes below 1 μm. Cationic organic flocculants with high charge density (60–80%) effectively destabilize these emulsions by adsorbing onto the surfactant-coated droplet surface, enabling subsequent gravity or centrifugal separation. This approach eliminates the need for acid-cracking pretreatment, reducing chemical consumption and operational costs by 35–50%.
Urban sewage treatment plants handling mixed domestic and light industrial wastewater benefit significantly from organic flocculant dosing at primary clarifiers and tertiary polishing stages. Anionic polyacrylamide (APAM) is widely used for sludge dewatering, reducing sludge moisture content from 98% to below 80%, while improving the efficiency of belt filter presses and centrifuges. Smedic's products are deployed in over 600 urban sewage treatment plants across China, treating a combined daily capacity exceeding 20 million tons.
Mineral flotation circuits and tailings pond management require specialized organic flocculants to separate fine mineral particles from process water containing residual flotation reagents and lubricating oils. High-molecular-weight APAM with appropriate charge density accelerates thickener performance, reduces water consumption in closed-loop circuits, and enables cleaner water recovery for reuse. In coal washing operations, organic flocculants reduce suspended solids in overflow water from 2,000+ mg/L to below 50 mg/L.
IMO MEPC regulations require bilge water to contain less than 15 ppm oil before discharge. Compact organic flocculant dosing systems integrated with oily water separators (OWS) on commercial vessels and offshore platforms provide reliable compliance. Bio-based organic flocculants derived from chitosan and modified starch are gaining traction in this segment due to their biodegradability and non-toxicity to marine ecosystems, aligning with the global push for green shipping and zero-discharge vessel operations.
Regulatory frameworks including China's GB 8978, EU Water Framework Directive, and US EPA effluent guidelines are continuously tightening permissible oil-in-water discharge limits. This drives industrial operators to upgrade from conventional gravity separation to chemically-enhanced flocculation systems, creating sustained demand growth for high-performance organic flocculants through 2030 and beyond.
Growing ESG pressure and circular economy mandates are accelerating the development of bio-derived organic flocculants from chitosan, guar gum, starch, and cellulose derivatives. These materials offer comparable flocculation performance to synthetic PAM while being fully biodegradable, non-toxic, and carbon-neutral — positioning them as the next generation of sustainable water treatment chemicals for oil-water separation.
The integration of artificial intelligence and IoT sensor networks into water treatment plants enables real-time monitoring of influent oil concentration, turbidity, and zeta potential, allowing automated adjustment of flocculant dosage. This smart dosing technology reduces chemical consumption by 15–30%, minimizes overdosing risks, and ensures consistent effluent quality — representing a key competitive differentiator for forward-thinking flocculant suppliers.
The development of inorganic-organic hybrid flocculants — such as Smedic's patented covalent bond flocculant technology — represents the frontier of oil-water separation chemistry. These composite materials combine the rapid charge neutralization of inorganic coagulants with the superior bridging capability of organic polymers in a single molecular structure, achieving synergistic performance that neither component can deliver alone. Multiple international awards validate this technology's commercial and scientific significance.
Global shale gas production and deepwater oilfield development generate massive volumes of produced water with complex oil-water emulsion characteristics. The rapid expansion of oilfield operations in the Middle East, North America, and Central Asia is driving demand for specialized high-salinity-tolerant organic flocculants capable of performing effectively in high TDS (total dissolved solids) environments exceeding 50,000 mg/L — a technically demanding segment where premium-grade products command higher margins.
Zero Liquid Discharge systems, increasingly mandated in water-scarce regions and high-pollution industries, require ultra-high-performance oil removal at the pretreatment stage to protect downstream evaporators and crystallizers from fouling. Organic flocculants play a critical role as the first line of defense in ZLD trains, with market demand in this segment expected to grow at 12% CAGR through 2028 as ZLD adoption accelerates across Asia, the Middle East, and industrial clusters in developing economies.
Smedic Technology Co., Ltd. was established in 2011 as a comprehensive solution provider specialized in environmental protection agents, integrating R&D, production, sales, and engineering-related technical services. We are dedicated to providing customers with customized chemical products, technical solutions, and services.
Smedic produces environmental protection agents covering multiple sectors such as municipal sewage, industrial wastewater, and tap water treatment, as well as mineral processing agents, and oilfield chemicals. We offer more than 80 different environmental protection products, with an annual production capacity exceeding 1 million tons.
Our corporate headquarters is located in Beijing. We have multiple wholly-owned production bases in Hebei, Guizhou, Shanxi, and other regions, and have set up more than ten OEM partner factories and regional warehousing and logistics bases in Shandong, Shanxi, Anhui, Guangxi, and Sichuan provinces, among others. Our business and service network covers over 20 provinces across China. Our projects involve more than 600 urban sewage treatment plants and over 1,000 end customers in industrial wastewater treatment, mineral processing, and oilfield chemicals. The total sewage treatment capacity involved in the projects exceeds 20 million tons per day. We are a leading company in the Chinese market within the high-end segment of environmental protection chemicals for municipal and industrial wastewater treatment.
We have obtained qualifications such as National High-tech Enterprise, National Specialized, Refined, Unique and Innovative "Little Giant" Enterprise, National Key-Supported Specialized, Refined, Unique and Innovative "Little Giant" Enterprise, Hebei Province Specialized, Refined, Unique and Innovative "Little Giant" Demonstration Enterprise, Hebei Province Green Factory, Hebei Province Science and Technology-based Small and Medium-sized Enterprise, and China's Science and Technology-based Innovative Small and Medium-sized Enterprise.
We have a core technical team composed of academicians, experts, professors, and senior engineers, and have established an R&D system and a technology commercialization platform centered around one academy, three research institutes, and five bases. We have established the Hebei Provincial Enterprise Technology Center, the Hebei Provincial Advanced Water Treatment Chemicals Technology Innovation Center, and the Cangzhou Water Treatment Engineering Technology Research Center, and have been recognized as a Class A R&D institution in Hebei Province.
We have established an expert workstation with Tsinghua University Association of Senior Scientists and Technicians, and have set up joint R&D laboratories with Shandong University and Beijing University of Technology. Additionally, we also serve as a commercialization partner for the industry–academia–research achievements of institutions such as Peking University and Tianjin University.
The patented technologies and products we have independently developed, such as the bio-enhanced denitrification carbon source and the deep multi-nuclear phosphorus removal agent, have passed the scientific and technological achievement evaluation conducted by the Science and Technology Department of Hebei Province. These achievements have been appraised as "internationally advanced" and have filled a domestic gap in this product category.
Our "Active Oxygen Compound Disinfectant" has been recognized as a National Construction Industry Scientific and Technological Achievement Promotion Project by the Science and Technology Development Promotion Center of the Ministry of Housing and Urban-Rural Development.
Our independently developed "Inorganic-Organic Covalent Bond Flocculant and Its Advanced Water Purification Technology" has won multiple awards, including the 22nd China Patent Award, the First Prize for Technological Invention from the China Petrochemical Industry Association, the Hebei Province Science and Technology Progress Award, and recognition as a Belt and Road SME Recommended Project.
We have been recognized as the "Leading Brand of Advanced Wastewater Treatment Chemicals" and the "Most Valuable Water Treatment Chemicals Brand" by China Water Network and the E20 Environmental Platform for four consecutive years. We have established long-term strategic partnerships with dozens of major water groups, including Shouchuang Ecological and Environmental Group, Yangtze River Ecological and Environmental Group, Beijing Enterprises Water Group, OriginWater, and China Water Environment Group, and have been included in their centralized procurement supplier lists.
We have been granted over sixty Chinese patents, including more than forty invention patents and over twenty utility model patents. We have led the drafting of more than ten national and industry standards, including those for composite carbon sources, composite coagulants, sodium acetate, and nitrifying and denitrifying bacterial agents.
