TREATMENT OF CLEANING LIQUIDS

Separation instead of disposal environmental protection by washing lye cleaning and oil recycling

Certain surface treatment processes in the metal-processing industry require thorough cleaning. Treatment of the cleaning agents used not only provides environmental protection in the long term; it also significantly reduces costs.

Centrifugal separators are suitable for cleaning washing lye. They process the washing lye of a hot defatting bath and the resultant drawing oil from the deep drawing process.
Features:
━ Significantly reduced washing lye requirement
━ Reduced disposal costs
━ Improved cleaning effect as the circulating washing lye is always clean
━ Solids and oil are discharged in concentrated form
━ Lower costs for cleaning the washing lye circulation system
━ High surface quality due to uniform cleaning effect

TREATMENT OF COOLING LUBRICANTS

Centrifugal separation for coolant emulsion and cooling oil

Coolant emulsions are used both in a wide range of cutting and non-cutting processes. They serve to reduce the frictional or forming energy, heat dissipation as well as flushing the filings away from the point being machined.

Coolant emulsions are made up of various constituents (emulsifiers, stabilizers, anti-corrosive additives, EP additives and mineral oil components). These emulsions are more or less susceptible to putrefaction and decomposition. Contaminants such as metal abrasives and extraneous liquids (hydraulic oil, lubricating oil) accelerate the aging process, i.e. degradation of emulsifiers, acid formation, discolouration plus odour nuisance and skin irritations caused by handling.

The primary preventive measure against aging is absolute cleanliness in the installation. To keep the coolant emulsions in a usable condition, solids and tramp oil must therefore be removed as soon as possible.

Both tasks can be fulfilled simultaneously with separators. The solid fines and tramp oil are separated in one single step.

STATIONARY AND MOBILE SOLUTIONS

Protection of the environment and responsible handling of the available resources require innovative technology. For decades, Huading Separator has developed and constructed mobile systems for flexible application. All major process steps with the associated equipment are consolidated as a single unit in a truck trailer or in a container for even more flexibility. The entire piping is installed and the system is automated and ready for immediate use. High-performance systems which provide substantial improvements.

The advantages are obvious. Mobile systems equipped with innovative, high-performance decanters ensure a high degree of economy through their continuous operation, high throughput capacities, optimum dewatering and flexibility. This is supplemented by modern control technology and simple process integration. The optimum conditions for reduced volumes of sludge and low-cost, economical disposal.

The advantages of mobile systems become apparent wherever rapid action or flexible applications are required. Whether from municipal waste water treatment plants for handling peak loads to the various fields of industry for fast action in tight situations. Here the requirements are different from municipal sludge dewatering or thickening. A lower throughput is often required. This applies both to the transport and to the space required by the unit in the plant.

Huading Separator has developed the mobile concept further with the new plant systems in container construction. Simpler logistics world-wide. Any truck can take and transport the standard container module. Production has also been economically optimized by standard components. With these new, compact systems, Huading Separator has met the current demands of the market. Maximum flexibility, fast and reliable separating technology, cost-optimized designs and simple process integration. A simple and fast solution.

Drinking Water

Drinking water is a valuable resource. Even so, only a small amount of water is used for consumption.

Drinking water is gained either from the groundwater or from surface water. With growing populations and increasing levels of pollution, the employment of surface water is increasing constantly. Surface water is treated by centrifugal separating technology to remove the undesired constituents.

Heavily polluted surface water is treated by various chemical processes. Decanters are used to dewater the sludge produced in this process. The proportion of mineral pollutants in the raw water and the types of chemicals used for precipitation are highly significant for the dewatering process.

Clarifying decanters are employed to dewater the sludge in drinking water treatment plants. These were developed for high-performance clarification and the highest possible dewatering of the solids.

Amongst other features, this is ensured by the high bowl speed and a high scroll torque in conjunction with a differential speed regulation operating proportionally to the solids loading. The closed design of the machines in conjunction with an enclosed installation prevents the escape of aerosols, protecting people and the environment.

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Industry Waste Water

Wastewater technology integrated into production processes for resource-minimized production is a broad spectrum of applications for Huading Separator. Recycling, making a material useful in a circulatory production system by separation, is a task for special decanter centrifuges in diverse industrial applications.

The use of high-alloy stainless steels for all components in contact with the product ensures a high degree of durability and long service life. Innovative features such as high g-forces, large clarifying surfaces, optimized feed systems, special drives and a degree of dewatering which can be adjusted externally during operation ensure optimum clarifying performance and highly economic operation.

The fields of application are as diverse as the industries themselves. Whether in the food industry, chemicals and pharmaceuticals, the computer industry, energy management, the paper industry or agriculture – separating technology with decanters and separators provides clear-cut solutions in all fields of application.

The fields of application extend from the treatment of atomic power plant wash water through glass powder recovery to the purification of wastewater from cellulose production.

The smallest particles of slag produced during degassing in the melting of iron ore are returned to the process by decanters. In the automotive industry, decanters recover lacquer residues from the lacquering shop wastewater.

The applications in the food industry are also diverse. Whether in the treatment of wash water in the starch industry or in the treatment of waste water from dairies, the edible oil industry or the beverage industry, separators and decanters always provide a clean solution.

━ Asbestos sludge
━ Brewery waste water
━ Chemical waste water
━ De-inking wash water
━ Electrocoagulation
━ Faecal sludge
━ Galvanic sludge
━ Hydroxide sludge
━ Industrial waste water
━ Juice waste water
━ Kaolin waste water
━ Lacquering sludge
━ Manure
━ Nuclear waste water
━ Oil refinery waste water
━ Pulp and Paper Sludge
━ Quartz sludge
━ Refinery residue
━ Starch waste water
━ Tannery waste water
━ Uranium waste water
━ Vegetable waste water
━ Wash water
━ Xylase waste water
━ Yeast waste water
━ Zinc oxide waste water

THICKENING OF SEWAGE SLUDGE

THICKENING OF SEWAGE SLUDGE

International water conservation policy has focused especially on advanced waste water treatment. The inevitable consequence: a worldwide increase in the sewage sludge volume. How can the municipalities dispose of the growing volume in an environmentally acceptable manner and cost-effectively? The solution is highly efficient dewatering leaving as few residuals as possible. Because the higher the solids concentration of the sewage sludge is, the more economical the further processes are.

Designed and constructed for high clarification efficiency and maximum solid concentration, the different decanter models are not only products of Huading Separator experience but also incorporate the constantly changing results from the field. The result: high-performance decanter centrifuges that not just meet all the demands made on them, but also surpass them in many respects, achieving maximum benefit for the user.

Advantages of mechanical thickening with centrifuges include a reduction in the load on the digester and improved digestion with higher gas yields, and improved volatiles destruction.

Regulatory restrictions on phosphorous and nitrogen levels have made the thickening of waste activated sludge necessary. Mechanical thickening cuts capital costs substantially and results in up to a 90% decrease in sludge volumes. Advantages of mechanical thickening with centrifuges include a reduction in the load on the digester and improved digestion with higher gas yields, and improved volatiles destruction.

Dewatering of Sewage Sludge

The objectives of water protection policies make constantly increasing requirements for more thorough wastewater purification. Therefore, a further increase in the volume of sewage sludge produced worldwide is anticipated in the future.

Both municipalities and industry are obliged to dispose of the growing quantities of sewage sludge in an environmentally safe and economical manner.

The disposal of sewage sludge must be secured in the future, employing the latest standards of technology to ensure that valuable materials are recycled. The optimum and economical dewatering of sewage sludge is a central step for all recycling possibilities.

The method of disposal and the associated requirements on the degree of de-watering determine the economy of a dewatering unit. Any increase in the concentration of solids is beneficial in terms of reducing landfill and transport costs.

To allow the sewage sludge to be recycled or disposed of in line with the corresponding requirements, optimum dewatering is necessary before drying, incineration or dumping. The decanters from the Huading Separator fulfil these requirements by a high g-force (separation efficiency) and optimum torque control.

A high degree of dewatering guarantees a substantially reduced sludge volume and thereby significant cost reductions for:

━ Transport
━ Landfill
━ Energy consumption during drying or incineration

Decanter centrifuges

Model Bowl ID(mm) Speed (rpm) L/D G-force Motor(kW) Weight (kg)
LW186 186 6000 4 3750 5~7.5 1050
LW250 250 4400 4.3 2710 7.5~11 1200
LW300 300 4400 4.5 3250 7.5~11 1400
LW355 355 4200 4.5 3500 22 2200
LW400 400 4200 4~4.5 3950 30 2600
LW450 450 3400 4.5~5.0 2900 30~37 3600
LW500 500 3400 4 3250 37~45 4300
LW530 530 3000 4.3 2680 45 5000
LW580 580 2500 4.3 2030 55~75 7000
LW650 650 3100 4.2 3500 75~90 10000
LW720 720 2500 4 2520 90~110 12000
LW900 900 3600 4 2000 110-160 16000

 

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MINERAL PROCESSING

In nowadays, more and more centrifugal separation equipments used for mining, and mineral processing. Whether processing calcium carbonate, kaolin or titanium dioxide, crud treatment, PLS clarification or recovery of organic components: the separating technology machines, systems and process lines from Huading Separator set standards for performance, service life as well as for economic and environmentally sound operation.

Centrifugal separation solutions from Huading Separator concentrate customer benefit:
━ Optimize process results
━ Reduce production costs permanently
━ Maximize production capacities
━ Protect people and environment

Huading Separator provide highly efficient and durable solutions for mining, mineral processing and pigment production. Including:

Inorganic pigments processing:
━ Calcium carbonate
━ Kaolin
━ Titanium dioxide
Hydrometals (such as copper, uranium, cobalt, nickel, zinc):
━ Crud treatment / clay treatment
━ PLS clarification

Extraction in Pharmacy

Pharmaceutical substances such as vitamins, plant and organ extracts, antibiotics, enzymes, hormones, and other biologically active agents are highly sensitive and valuable. Huading Separator can provides gas-tight and explosion-proof centrifuge solutions for gentle, contamination-free extraction.

Whether the process involves liquid-liquid, liquid-solid, or liquid-liquid-solid separation—single-stage or multi-stage—Huading supports all major extraction principles, including co-current, counter-current, and crossflow techniques. Our flexible systems adapt to diverse pharmaceutical production needs with precision and safety.

Common Processes in Pharmaceutical Extraction

Liquid-Liquid Extraction (LLE)

Liquid-liquid extraction (LLE) is a fundamental technique in pharmaceutical processing, employed to separate compounds based on their solubilities in two different immiscible liquids, typically an aqueous phase and an organic solvent. Centrifugal separators enhance this process by providing rapid and efficient phase separation. By applying high centrifugal forces, these separators reduce the time required for phase disengagement, minimize solvent usage. This method is particularly beneficial for temperature-sensitive operations and processes requiring reduced solvent inventory and footprint.

Liquid-Solid Separation

In pharmaceutical manufacturing, liquid-solid separation help removing solid impurities from liquid extracts, ensuring the clarity and purity of the final product. Centrifugal separators, such as decanter centrifuges and disc stack separators, are widely used for this purpose. These machines apply centrifugal force to separate suspended solids from liquids efficiently that is ideal for clarifying herbal tinctures, fermentation broths, and other liquid preparations.

Liquid-Liquid-Solid Separation

Complex pharmaceutical processes often involve mixtures containing two immiscible liquids and suspended solids, necessitating simultaneous separation of all three phases. Centrifugal separators are adept at handling such liquid-liquid-solid separations, commonly encountered in fermentation processes and natural product extractions. By leveraging centrifugal force, these separators effectively isolate solids while concurrently separating the liquid phases based on their density differences. This capability ensures the efficient recovery of valuable compounds and the removal of unwanted impurities, enhancing product quality and process efficiency. ​

Continuous vs. Batch Processing

Centrifugal separators offer flexibility in pharmaceutical manufacturing by accommodating both continuous and batch processing modes. Continuous processing involves the constant input and output of materials that enabling steady-state operations. Conversely, batch processing handles materials in discrete quantities provide greater control over individual production lots. The choice between continuous and batch processing depends on various factors, including production scale, regulatory requirements, and specific process characteristics. Manufacturers like Huading provide centrifugal separation solutions tailored to both processing modes, supporting diverse pharmaceutical production needs.

 Applications in Plant-Based Pharmaceutical Extraction

Herbal Extracts

In the production of herbal medicines, centrifugal separators are employed to isolate bioactive compounds from plant matrices. This process preserves the therapeutic properties of the extracts and ensures consistency in product quality. For instance, compounds like cannabidiol (CBD) are extracted from hemp using these technologies to achieve high purity levels.​

Herbal Extracts
Essential Oils

Essential Oils

The extraction of essential oils from aromatic plants involves separating volatile compounds from plant materials. Centrifugal separators facilitate this by efficiently isolating the oil phase from aqueous distillates, resulting in pure essential oils used in both pharmaceutical and cosmetic industries.​

Alkaloids and Flavonoids

Alkaloids such as morphine, codeine, caffeine, quinine, and ergot alkaloids, as well as flavonoids, are extracted from various plant sources for their pharmacological activities. Centrifugal separation techniques enable the efficient purification of these compounds, ensuring their efficacy and safety in medicinal applications.​

Alkaloids and Flavonoids
Antibiotics

Antibiotics

Certain antibiotics, including penicillin, erythromycin, tetracycline, bacitracin, clavulanic acid, and cyclosporine, are derived from microbial fermentation processes. Centrifugal separators are utilized to separate the antibiotic compounds from the fermentation broth, enhancing yield and purity.​

Steroids and Hormones

The production of steroids and hormones such as corticosteroids, growth hormone, and testosterone involves complex extraction and purification processes. Centrifugal separators aid in these processes by efficiently separating the desired compounds from other cellular materials.​

Steroids
Organ Extracts

Organ Extracts

Organ-derived products like insulin, pancreatin, and placenta extracts require precise separation techniques to ensure product purity and safety. Centrifugal separation plays a crucial role in isolating these sensitive compounds during the manufacturing process.​

Pectins and Vitamins

Pectins, used as gelling agents, and various vitamins are extracted from plant materials. Centrifugal separators facilitate the clarification and concentration of these extracts, maintaining their functional properties for pharmaceutical formulations.​

Pectins and Vitamins
Aromatic Materials

Aromatic Materials

The extraction of aromatic compounds for use in medicinal teas and other therapeutic products involves separating volatile substances from plant matter. Centrifugal separation ensures the efficient recovery of these aromatic materials, preserving their desired qualities.

Features of Huading’s Centrifugal Separators

  • Gas-Tight and Explosion-Proof Designs: Huading’s separators are designed to ensure safety when handling volatile solvents and flammable materials, complying with industry safety standards. ​
  • Gentle Processing: These separators minimize shear forces, preserving the integrity of sensitive bioactive compounds during extraction. ​
  • Compliance with GMP Standards: Huading’s equipment is designed to meet Good Manufacturing Practice requirements, facilitating regulatory approvals and ensuring product quality. ​
  • Automated Cleaning-in-Place (CIP): The separators support automated cleaning processes, simplifying maintenance and reducing downtime between batches. ​

Pharmaceutical Biotechnology

Pharmaceutical Biotechnology researches and develops the high-tech medicines of the future. For its highly sensitive biomaterials a correspondingly protective process is absolutely essential. In these highly sensitive production processes Huading Separator’s centrifugal separation technology play a key role. Aseptic process management, optimum cleaning capability, closed product handling, gentle product treatment, reliable compliance with GMP requirements, efficient recovery of active ingredients and a reliable scale-up – the requirements of biotechnology are demanding. With separators and decanters designed specifically for biotechnological applications, Huading Separator stands for reliable compliance with these requirements.

Separators and decanters from Huading Separator for pharmaceutical agents recovery:
General human vaccines
━ Hepatitis A and B
━ Influenza
━ Meningitis C
━ Pneumococcal vaccines
━ Mumps, measles, rubella
━ Polio
━ Diphtheria
━ Tetanus
━ Whooping cough
Veterinary vaccines
━ FMD etc.
Insulin from biomass
Enzyme
━ Amylolytic enzymes
━ Proteolytic enzymes
━ Lipases
━ Cellulases, etc.
Starter cultures (bacterial cultures)
━ Lactobacillus
━ Leuconostoc
━ Streptococcus
━ Bifidobacteria, etc.
Human blood proteins
━ Cryoprecipitate (factor VIII)
━ Fibrinogen
━ Globulin
━ Albumin, etc.
Synthetic pharmaceutical products
━ Pharmaceutical proteins
━ Interferon
━ Interleukin
━ Heparin