Intelligent Control Slow Sand Filter Stable Operation For Cooling Water Circulation

Intelligent Control Slow Sand Filter Stable Operation for Cooling Water Circulation

Brief Description

Designed for harsh industrial environments, this filter combines three major advantages: high-efficiency filtration, intelligent control, and stable operation. Backwashing can be completed without manual intervention, effectively removing suspended impurities from the water and ensuring the safety of downstream equipment. Suitable for cooling water circulation, process water pretreatment, and other scenarios, significantly reducing maintenance costs and improving overall system operating efficiency.

Product Overview

The automatic shallow filter device consists of multiple standard high speed sand cylinder units equipped with unique water distributors and collectors.With dual direction automatic flushing valves, it ensures efficient and automatic cleaning of sand filters during normal system operation.

Technical Advantages

The automatic shallow filter utilizes high-quality quartz sand filter material as the medium filter element and achieves fully automatic program control through plc combined control of multiple electric valves.It features advantages such as low backwash water consumption, easy equipment installation, and user friendly operation.With high flow capacity and no maintenance required, this equipment is suitable for water quality treatment in industrial, residential, and landscaping circulating water systems.

Technical Parameters

Equipment Model

SYS 1200 A 1.0 QCS

1 2 3 4 5

1…………Water Doctor Brand Code
2…………Shallow filter tank diameter (mm)
3…………Number of booster backwash pumps (A: Single pump configuration; B: Dual pump configuration)
4…………Operating pressure
5…………Shallow sand filter

Application Areas

Cooling circulating water systems, Chilled water circulating water systems, Heating circulating water systems, Industrial circulating water systems.

Company Profile

Beijing SYS Science & Technology Co., Ltd was founded in 2000 and is an innovative comprehensive service provider specializing in integrated water environment governance. Adhering to the mission of "taking water treatment as its own responsibility", SYS continuously optimizes and innovates core technologies and services from a systematic perspective, based on its proprietary core technologies and 25 years of experience in water environment governance. It has established a full-lifecycle integrated management service system covering "consultation, planning, design, manufacturing, implementation, and operation", and possesses strong market competitiveness in fields such as basin planning and governance, construction and upgrading of urban and industrial park sewage treatment facilities, water quality improvement of rivers, lakes and landscapes, black and odorous water treatment, rural sewage treatment, and circulating water system treatment.

Rooted in China and serving the world, SYS has carried out exchanges and cooperation with more than 20 countries and regions globally. Over the past 25 years, it has participated in the construction and operation of more than 1,000 water resources projects and over 5,000 circulating water projects.

As a national high-tech enterprise, SYS has successively overcome key technical challenges such as ultra-limit nitrogen removal, ultra-limit phosphorus removal, low-temperature sewage biological treatment, sludge source reduction, and micro-polluted water treatment through continuous R&D and technological accumulation. It holds 124 independent intellectual property rights, including 24 invention patents. Its three core proprietary technologies—Rapid Separation Biological Treatment Technology, Spore Transfer Technology, and Ion Balance Device Technology—have been evaluated by experts from the Ministry of Science and Technology as reaching the international advanced level and leading domestic level overall.

Global Cooperation Network

SYS is based in China and have cooperating clients in more than 20 countries and regions worldwide.

Company Performance

SYS holds a unique competitive edge in the field of circulating water systems and has consistently remained at the forefront of the industry.

Since its establishment, SYS has successfully completed over 5,000 circulating water projects, with a total contract value exceeding RMB 1 billion.Our project portfolio spans a wide range of sectors, including landmark office buildings, steel plants, airports, universities, subways, as well as cloud computing and data centers. In particular, over the past three years, SYS has achieved remarkable performance in the data center sector, completing more than 200 projects with a total contract value exceeding RMB 50 million.

Application Areas

Cooling circulating water systems, Chilled water circulating water systems, Heating circulating water systems, Industrial circulating water systems

Application Scenarios

Stadium, Data centers, Rail transit, Airports, Office buildings, Steelworks, Electric Power Plant, Colleges and universities, etc.

Circulating Water Projects

· Data Center

· Stadium

· Rail Transit & Landmark

· Airport

· Hospital

· College & University Projects

· Bank

· Power Plant

· Others

SYS was founded in 2000 (stock code: 301372) and has always focused on the water environment management industry. It provides comprehensive solutions for water treatment technology, products, water environment management, and project operation around the needs of customers for water environment management.
Based on its own core technology and 26 years of experience in water environment governance, SYS has built a comprehensive management service for the entire life cycle from a system perspective, integrating "consulting, planning, design, manufacturing, implementation, and operation", forming a complete water environment system governance service capability.

Development History

Main Business

Global Cooperation Network

Company's Technical Strength
SYS has 124 independent intellectual property patents and proprietary technologies, and have passed the "Scienceand Technology Achievement Appraisar of the National Science and Technology Commission, and won the second prize of "Environmental Protection Science and Technology Award" of the Ministry of Ecology and Environment, the first prize of "Science and Technology Award" of Beijing Municipality, and other honors. The company has been awarded the second prize of "Environmental Protection Science and Technology Award" by the Ministry of Ecology and Environment and the first prize of  "Beijing Science and Technology Award".
The company has 3 core technology products: Spore Transfer System, Rapid Fractionation Biological Treatment, Intelligentlon Balancing Device, and other new technology and new products totaling 19 items, which have been recognized as Beijing's new technologies and new products (services).
Rapid Fractionation Biological Treatment Technology
Rapid Fractionation Biological Treatment is the use of fluid mechanics in the "Flow separation" principle combined with biofilm, multistage A/O biological treatment technology. Innovation and formation of a high efficiency biological treatment technology can effectively remove organic matter, ammonia, total nitrogen and other pollutants in the water. The technology has passed the expert appraisal of the science and Technology Achievement Evaluation center, approved by the Ministry of science and Technology, and has been recognized as reaching the domestic leading level (2022), international advanced level (2024).

↑ Scientific and Technological Achievements Appraisal Certificate——Domestic Leading, International Advanced

Application Areas

Spore Transfer Treatment System
Spore Transfer Treatment System is a highly efficient physicochemical treatment method formed through the reaction of customized agents and micro-nano bubbles with the phosphorus hydrophobic suspended matter in water, etc. It can effectively remove total phosphorus , suspended matter and other pollutants in the water, and atthe same time realize the reoxygenation of the water body. The technology has been appraised by experts of the science and Technology Achievement Evaluation center approved by the Ministry of science and Technology, and is recognized as reaching the domestic leading level (2022) , international advanced level (2024).

↑ Scientific and Technological Achievements Appraisal Certificate——Domestic Leading,International Advanced

Application Areas

Intelligent Ion Balancing Device
The Intelligent Ion Balance Device (Desalination) is a key component of water quality treatment in cooling water circulation systems. Based on the principle that charged particles migrate to electrode surfaces under the action of an electric field, it enriches dissolved salts and other charged substances in water on the electrode surfaces. By adjusting process parameters to regulate the reaction process and balance the ion concentration in water, it achieves water quality control, reduces carbon emissions, and ultimately realizes water conservation and carbon reduction goals.

Cooling Tower Treatment Effect Comparison
Sewage Discharge Volume & Sewage Discharge Fee  ⬇80%
Water Supplement Volume & Water Supplement Fee  ⬇27%
Chemical Agent Fee  ⬇71%

Treatment Effect

Before Treatment                                                                                   After Treatment

Water Treatment Chemicals
1. Circulating Water Treatment Chemicals
1) Cleaning Agents
Remove scale, deposits, corrosion products, microorganisms and other contaminants accumulated in the system to prepare for subsequent pre-filming.
2) Corrosion Inhibitors
Slow down the electrochemical corrosion of metals (e.g., pitting corrosion, crevice corrosion, general corrosion). On the basis of the protective film formed during pre-filming, it maintains long-term corrosion protection effect and extends the service life of equipment and pipelines.
3) Biocides and Algaecides
Alternately dose oxidizing/non-oxidizing biocides and algaecides to prevent the proliferation of bacteria, algae, fungi, biofouling slime and other microbes, and reduce the risk of microbiologically influenced corrosion (MIC).
4) Pre-filming Agents
Form a protective film on metal surfaces to mitigate corrosion, inhibit scaling and prolong the service life of equipment.
5) Scale Inhibitors
Inhibit the deposition of inorganic salts such as CaCO3, CaSO4 and SiO2, and prevent particulate agglomeration. Used in synergy with corrosion inhibitors, it avoids localized corrosion caused by scaling.
6) pH Adjusters
Control the water pH level and maintain the optimal pH range to ensure the efficacious performance of water treatment chemicals such as corrosion inhibitors, scale inhibitors and biocides, as well as prevent equipment corrosion and scaling.
2. Comprehensive Water Resource Treatment Chemicals
1) Ultra-Limit Phosphorus Removal Agent SYS-CP-JX
The effluent phosphorus content meets the Class III standard for surface water (lakes and reservoirs) (TP≤0.05mg/L).
2) Phosphorus Removal Active Factor Agent for Ultra-Purified Water SYS-CP-CJ
Suitable for phosphorus removal in water bodies with extremely low suspended solids (SS≤10mg/L), such as mine sump water and groundwater.
3) Special Agents for Spore Transfer Technology (Spore Agglomerant SYS-BZ-JH, Spore Focusing Agent SYS-BZ-JJ)
Matched for use with spore transfer integrated machines.
4) High-Efficiency Sludge Activator SYS-WJH
Improves the quality and efficiency of biochemical systems in municipal or industrial water treatment plants plagued by activated sludge aging, poor settleability and low water treatment efficiency.
5) Special Fluoride Removal Agent SYS-CF
For the treatment of fluorine-containing water bodies including industrial wastewater, surface water and groundwater.
6) High-Efficiency COD Remover SYS-CCOD
Targeted at refractory COD removal.
7) Heavy Metal Remover SYS-CZJS
For wastewater from industries such as mining, manufacturing, metallurgy, electronics, chemical engineering and electroplating.
8) Sediment Passivation and Degradation Agent SYS-DJD
For the treatment of black and odorous sediment in natural water bodies.
9) Special Arsenic Removal Agent SYS-CAs
For the treatment of arsenic-containing wastewater.

Partial Core Technologies and Products

Authoritative EU CE Certification
SYS's circulating water equipment (full-process water processors, constant pressure water supply devices, intelligent chemical dosing devices, water softeners) and water resource equipment (rapid separation integrated machines, spore transfer integrated machines) have obtained the authoritative EU CE Certification. With double assurance of quality and performance, we empower water treatment projects worldwide!

Pioneer in the Circulating Water Industry
Founded in 2000, the company has made a number of pioneering industry achievements in the circulating water field to date.
1.The only GEM-listed enterprise engaged in physical water treatment in China
2.Editor-in-chief unit of the national standard Water Quality Standard for Heating and Air Conditioning Systems in China
3.Developer of the national industrial standard Automatic Fixed Bed Sodium Ion Exchanger in China
4.Developer of the national industrial standard Technical Specifications for Radio Frequency Physical Field Water Treatment Equipment in China
5.Inventor and the top brand of radio frequency physical field water treatment equipment in China
6.Inventor of China's first radio frequency physical field full-process water processor, which has passed the appraisal of national-level scientific and technological achievements

Business Scope
Treatment, reuse and zero discharge of cooling circulating water, chilled circulating water, heating circulating water and industrial circulating water involved in heating systems, air conditioning systems and industrial circulating water fields, as well as the supporting make-up water and drainage water in these fields.
Involved Industries
Data centers, office buildings, rail transit, airports, colleges and universities, hotels, large sports venues, aviation industry, healthcare, finance, industrial plants, etc.
Circulating Water Project Achievements
The company has delivered over 5,000 circulating water projects, with business coverage across more than 20 countries and regions worldwide, and the cumulative total contract value exceeding RMB 1 billion. Especially in the past three years, it has completed more than 200 projects in the data center sector, with a cumulative contract value of over RMB 50 million.

In response to the widespread problems of fragmented services,lack of systematic solutions and weak after-sales service in thewater treatmentindustry,SYS,as a leading comprehensive service provider of circulating water systems, has innovatively proposedafullife cycle service system with its accurate grasp of market demand and technical advantages,aimingto meet customers' variousneeds from early planning to later operation and maintenance in an all-round and one-stop manner,covering multiple links such asequipment selection, installation and commissioning, water quality testing,chemical supply, and cleaning and pre-filming.
At present, industry enterprises only make commitments on equipment. In response to the problems of slow after-sales serviceresponse and low customer satisfaction in the current industry, SYS provides customers with a more comprehensive, professionaland efficient fullife cycle service system to solve the current problems in the industry, improve customer satisfaction and marketcompetitiveness, and promise to be responsible for the entire system,establish a complete after-sales service system, and pass theproduct after-sales service certification (standard: GB/T27922-2011 (five-star,registration number: W24SC0376R0S), providingcustomers with five-star services, including but not limited to24-hour customer service hotine,rapid response mechanism,regularreturn visits and other long-term technical support and after-sales service guarantees.