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Coyon AquaTech Limited: Your Professional Pre-Treatment Equipment Manufacturer

Founded in 2025 in Hong Kong, Coyon AquaTech Limited is the international hub of our water treatment business, supported by Yixing Lianhua Environmental Protection with 25+ years of manufacturing experience. Our 10,000㎡ ISO-certified factory and advanced production systems ensure stable quality and reliable supply. We deliver practical, cost-effective water treatment solutions to global customers.

Quartz Sand Filter Tank
Turbid water clogs pipes, damages equipment, and fails regulatory standards. Our quartz sand filter tanks provide reliable, low-maintenance filtration down to 25–50 microns — removing sand, silt,
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Quartz Sand Filter for Water Treatment
Turbidity, silt, algae, and organic particles compromise water quality, damage downstream equipment, and increase operational costs. Our quartz sand filter for water treatment deliver reliable,
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Quartz Sand Filter for Industrial Pretreatment
Premium industrial quartz sand filters for water pretreatment. Remove suspended solids, turbidity & contaminants. Customizable 2-100 m³/h capacity. 20+ years manufacturing expertise. Get quote today!
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Activated Carbon Filtration System
Chlorine, pesticides, pharmaceuticals, industrial solvents, and disinfection byproducts can persist in water—even at trace levels—compromising safety, taste, and regulatory compliance. Our activated
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Activated Carbon Filter for Water Treatment
Unpleasant taste, chemical odor, and hidden organic pollutants like pesticides, pharmaceuticals, and industrial solvents can linger in your water—even after municipal treatment. Our activated carbon
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Activated Carbon Filter for Industrial Water Treatment
In industrial water treatment systems, trace organics, chlorine residuals, and disinfection byproducts can foul membranes, degrade resins, corrode equipment, and compromise product quality. Our
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Water Softener Resin Tank
Hard water causes scale buildup in pipes, boilers, and heat exchangers—reducing efficiency, increasing energy costs, and shortening equipment life. At the heart of every effective water softener is a
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Resin Water Filter
Hardness, iron, manganese, nitrates, heavy metals, and high TDS can damage equipment, compromise product quality, and pose health risks. Our resin water filters use advanced ion exchange technology
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Resin Filter Water Softener
Hard water—loaded with calcium and magnesium—leaves scale on faucets, clogs pipes, reduces water heater efficiency by up to 30%, and makes soap ineffective. Our resin filter water softeners use
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Multi Media Filter Water Treatment
Multi media filters are high-efficiency water treatment devices that combine multiple layers of filter media made of different materials (including anthracite, quartz sand, magnetite, activated
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Multimedia Filter In Water Treatment
Multimedia filter in water treatment are highly efficient water purification devices that utilize three or more different media to reduce the level of suspended solids in process water. Suspended
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Bag Filter for Water Treatment
Suspended solids, rust, sand, algae, and particulate contaminants can clog nozzles, foul membranes, degrade product quality, and trigger equipment failure. Our industrial bag filters for water
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Why choose us

Strong manufacturing capability
Our 10,000㎡ factory operates with smart production lines and CNC machining centers, ensuring stable quality, efficient delivery, and precise equipment fabrication that meets international standards.

Proven technical expertise
Supported by 25+ years of engineering experience from Yixing Lianhua Environmental Protection, we offer practical and tested solutions for industrial wastewater, municipal water supply, and high-complexity treatment scenarios.

Certified quality & compliance
We hold CE, ASME, ISO 14001, and ISO 45001 certifications, along with three PCT international patents focused on high-salt wastewater zero-discharge technology—giving buyers confidence in safety, performance, and regulatory compliance.

Sales market
Our products are distributed across Europe, America, the Middle East, Southeast Asia, Chinese mainland, and Hong Kong. In Southeast Asia, we've delivered tailored solutions to industrial parks in Indonesia and Vietnam; in the Middle East, our equipment supports key projects in Kuwait. For European and American markets, we comply with stringent environmental standards, gaining recognition for technical reliability.

Benefits of Pre-Treatment Equipment

Preventing equipment blockages and damage
Large debris, plastics, and fibrous materials removed during screening can clog pumps, valves, and pipelines if left untreated. Grit and sand, if not separated, can cause excessive wear and tear on mechanical parts, leading to frequent maintenance or equipment failure.

Reducing organic and hydraulic shock loads
Flow equalization in pre-treatment buffers the system against sudden surges in wastewater volume or contaminant concentration. This prevents overloading of biological treatment reactors and ensures consistent operational conditions.

Minimizing oil and grease accumulation
Floating oils and greases can form thick scum layers in aeration tanks, disrupt oxygen transfer, and foul equipment such as diffusers and sensors. Their early removal ensures smoother downstream biological and chemical processing.

Protecting biological treatment processes
Many microorganisms used in secondary treatment are sensitive to toxic substances and extreme pH levels. Pre-treatment helps in neutralizing such harmful substances, improving the biological stability and treatment performance.

Enhancing system efficiency and cost savings
With fewer breakdowns, reduced chemical usage, and stable process conditions, pre-treatment significantly reduces operational costs and extends the life span of downstream components.

Product Parameters

Model	Tank Diameter (Mm)	Total Height (Mm)	Inlet/Outlet Diameter (Mm)	Capacity (M3/h)	Sand Weight (Ton)	Activated Carbon (Ton)
CY-MMF-500	500	2350	DN32	2	0.39	0.11
CY-MMF-600	600	2380	DN32	3	0.56	0.16
CY-MMF-700	700	2400	DN40	4	0.76	0.22
CY-MMF-800	800	2400	DN40	5	1	0.3
CY-MMF-900	900	2500	DN50	6	1.3	0.36
CY-MMF-1000	1000	2600	DN50	8	1.6	0.45
CY-MMF-1200	1200	2700	DN65	11	2.3	0.65
CY-MMF-1400	1400	2800	DN65	15	3	0.86
CY-MMF-1500	1500	2850	DN65	18	3.5	1
CY-MMF-1600	1600	2900	DN80	20	4	1.2
CY-MMF-1800	1800	3000	DN80	25	5	1.5
CY-MMF-2000	2000	3100	DN100	30	6	1.8
CY-MMF-2200	2200	3180	DN100	38	7.5	2.2
CY-MMF-2400	2400	3330	DN100	45	9	2.5
CY-MMF-2500	2500	3380	DN100	50	9.7	2.8
CY-MMF-2600	2600	3430	DN125	55	10	3
CY-MMF-2800	2800	3530	DN125	60	12.5	3.5
CY-MMF-3000	3000	3630	DN125	70~80	14	4
CY-MMF-3200	3200	3730	DN150	80~100	14	4.5

Application of Pre-Treatment Equipment

Food and beverage industry

This sector generates high-strength organic wastewater containing fats, oils, grease (FOG), proteins, sugars, and suspended solids from processing activities such as washing, cooking, and fermentation.

Textile industry

Textile manufacturing produces highly colored effluents containing synthetic dyes, heavy metals, sizing agents, and alkalis from dyeing, printing, and finishing operations.

Paper and pulp industry

This industry discharges large volumes of wastewater laden with lignin, cellulose fibers, chlorinated compounds (from bleaching), and high suspended solids.

Chemical and petrochemical industry

These facilities generate complex, often hazardous wastewater containing solvents, hydrocarbons, heavy metals, acids, bases, and toxic organics.

Healthcare facilities

Hospitals and clinics produce mixed wastewater containing pathogens, pharmaceutical residues, disinfectants, and organic matter from laboratories, kitchens, and patient care.

Construction and demolition

Runoff from construction sites contains high levels of silt, sand, cement slurry, paint residues, and debris from excavation, concrete pouring, and demolition.

Packaging, Delivery and Shipping

Payment term	TT, LC
Delivery date	Negotiable
Packing	Export standard
Market	Middle East/Africa/Asia/South America/Europe/North America
Warranty	1 year
MOQ	1 set

productcate-716-385

Certifications

FAQ

Q: What is pre-treatment equipment in water or wastewater treatment?

A: Pre-treatment equipment consists of devices that remove large solids, grit, oils, and other contaminants before water enters the main treatment process, protecting downstream systems and improving overall treatment efficiency.

Q: Why is pre-treatment necessary?

A: Pre-treatment is essential because it prevents blockages, reduces equipment wear, lowers maintenance costs, and enhances the performance of biological, chemical, and filtration processes by removing harmful or interfering materials early.

Q: What types of pre-treatment equipment are commonly used?

A: Common equipment includes coarse and fine screens, grit chambers, oil–water separators, dissolved air flotation (DAF) units, equalization tanks, and pre-chlorination systems, each targeting specific pollutants.

Q: What role do equalization tanks play in pre-treatment?

A: Equalization tanks balance fluctuations in flow and pollutant concentration by holding and mixing incoming wastewater, ensuring stable conditions for downstream processes and reducing shock loads.

Q: Can chemicals be used during pre-treatment?

A: Yes, chemicals such as coagulants, flocculants, pH adjusters, and oxidants may be added during pre-treatment to improve solid removal, neutralize acidic or alkaline flows, or control odors.

Q: How do screening and filtration differ in pre-treatment?

A: Screening removes larger solid materials using mechanical barriers, while filtration removes smaller particles using media or membranes; pre-treatment generally uses screening first to protect finer filtration systems.

As one of the most professional pre-treatment equipment manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy the best pre-treatment equipment for sale here from our factory. Also, custom service is available.

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