High-performance chemical coagulants and auxiliary polymers optimized for stabilization, neutralization, and phase separation.
An authoritative analysis of chemical conditioning, phase separation, and eco-friendly treatment agents in heavy industrial processing.
Acid sludge is generated during the refining of petroleum products, alkylation processes, and metal pickling. It contains concentrated sulfuric acid mixed with hydrophobic organic matter, creating highly stable emulsions. Effective chemical treatment relies on three primary chemical pathways:
Traditional treatment schemes relied on simple lime neutralization, resulting in massive volumes of hazardous solid waste. Modern processes utilize Inorganic-Organic Covalent Bond Flocculants. By chemically bonding inorganic hydrolyzable metal ions with organic polymers, these hybrid agents provide simultaneous charge neutralization and sweep flocculation. This technology reduces sludge cake volume by up to 40% and lowers residual moisture content, facilitating safer disposal or co-processing in cement kilns.
A premier comprehensive solution provider specialized in environmental protection agents, integrating R&D, production, sales, and engineering-related technical services.
Established in 2011, Smedic Technology Co., Ltd. is 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.
National recognition as a Specialized, Refined, Unique and Innovative "Little Giant" Enterprise and Hebei Province Green Factory.
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 independently developed "Inorganic-Organic Covalent Bond Flocculant and Its Advanced Water Purification Technology" won the 22nd China Patent Award and the First Prize for Technological Invention from the China Petrochemical Industry Association.
Our "Active Oxygen Compound Disinfectant" has been recognized as a National Construction Industry Scientific and Technological Achievement Promotion Project by the Ministry of Housing and Urban-Rural Development.
Recognized as the "Leading Brand of Advanced Wastewater Treatment Chemicals" and the "Most Valuable Water Treatment Chemicals Brand" by China Water Network and 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.
How domestic raw material vertical integration, large-scale automation, and R&D clusters translate to superior global procurement options.
Global industrial consumers face challenges sourcing reliable, high-performance treatment chemicals for hazardous wastes like acid sludge. China’s manufacturing sector, led by integrated firms like Smedic Technology, offers key operational advantages:
Domestic proximity to bulk chemical feedstocks (including high-grade iron ore residues for PFS production, and petroleum-derived precursors for polyacrylamide synthesis) insulates manufacturing lines from global pricing volatility. This secures cost-effective, long-term supply stability for international enterprise buyers.
With an annual capacity exceeding 1 million tons, Smedic operates continuous-flow reactors capable of adjusting basicity, molecular weight, and charge densities. This enables bespoke synthesis of PAC and flocculants tailored to specific plant parameters.
Aligned with National "Green Factory" standards, Chinese production bases incorporate advanced emission controls and automated monitoring. This minimizes the carbon footprint of the reagents, aiding global procurement departments in meeting Scope 3 ESG targets.
| Chemical Class | Primary Application in Acid Sludge | Typical Dosage Range | Target Metric Achieved |
|---|---|---|---|
| Polyaluminum Chloride (PAC) | Charge neutralization, de-emulsification of oily phases | 150 - 500 ppm | Colloidal destabilization, phase separation |
| Polyferric Sulfate (PFS) | Heavy metal precipitation, sulfide scavenge, floc core formation | 100 - 400 ppm | COD and heavy metal concentration reduction |
| Cationic Polyacrylamide (CPAM) | High-rate sludge conditioning, mechanical dewatering aid | 5 - 20 ppm | Low cake moisture, high solids recovery |
| Sodium Acetate (Solid) | pH buffering, bio-refractory denitrification carbon source | Variable based on pH | pH stability, optimized biological treatment |
Customized treatment matrices engineered to handle high-acid, high-hydrocarbon waste streams across diverse operating environments.
Refineries running sulfuric acid alkylation units produce an extremely challenging waste stream known as alkylation acid tar. Traditional disposal methods are hazardous and inefficient. Smedic's integrated process uses specialized coagulant matrices containing custom Polyferric Sulfate (PFS). This system breaks the oil-water-acid emulsion, allowing the recovery of hydrocarbons while neutralizing the remaining acidic aqueous phase. The resultant inorganic solids are bound into stable mineral complexes, minimizing leachability.
Steel pickling plants generate highly concentrated acidic rinses loaded with dissolved iron and heavy metals. By applying high-basicity Polyaluminum Chloride (PAC) coupled with Anionic Polyacrylamide (APAM), operators can accelerate phase separation. The metal ions are precipitated as hydroxides and bound within dense, easily filterable flocs. This process prevents membrane fouling in downstream Reverse Osmosis (RO) systems, helping facilities achieve zero liquid discharge (ZLD).
Coal gasification plants yield complex wastewater streams containing phenols, cyanides, and refractory organic acids. Smedic's high-purity solid sodium acetate acts as a precise carbon source for biological denitrification. This step facilitates the rapid conversion of nitrates to nitrogen gas in secondary treatment basins, ensuring compliance with strict environmental discharge regulations.
Decades of growth and innovation in advanced industrial environmental chemistry.
Smedic Technology was founded, focusing on the research, development, and production of environmental protection agents.
The company established a complete product portfolio for municipal wastewater treatment chemicals, expanding its domestic market footprint.
Smedic was recognized as a key national high-tech enterprise, validating its focus on proprietary chemical R&D.
Established a dedicated, state-of-the-art production base for water treatment chemicals in Guiyang to serve the southwestern region.
Production bases in Hebei, Shandong, and Guizhou were completed and expanded, bringing Smedic's total annual capacity above 1 million tons.
Officially recognized as a National Specialized, Refined, Unique and Innovative Small and Medium-sized Enterprise ("Little Giant").
Established a provincial-level R&D platform in Hebei, driving technological breakthroughs in covalent bond chemistry.
Recognized as a National Intellectual Property Advantage Enterprise, holding more than sixty patents.
Established a joint venture company with the Chengdu Institute of Mineral Comprehensive Utilization, China Geological Survey to produce advanced mineral processing reagents.
Answers to critical engineering questions regarding dosage optimization, compound selection, and safety protocols.
Targeted chemical agents for foam control, heavy metal removal, scale inhibition, and flocculation.
Smedic Tech