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Product Description
Product Process
Shallow sand filter is a medium filtration system which is composed of one or more standard high rate filtration units. Water flows through internal water distributor and water collector and different medium can remove particulate matter and reduce turbidity rate. If specific filter medium are used like activated carbon and anthracite, they can adsorb and remove relevant organic matter and ions.
When the system is in a filtering state, the pressure water flows into the water distribution system from the inlet of filtration units, arriving evenly filter material layers. After arriving, the suspended material of water is intercepted by the filter material. The bottom of the filter has a water collector with precision gaps. Filtered clean water is evenly collected, and flows out of the filter. With the accumulation of impurities in the filter material layer, the pressure loss increases. When the differential pressure increases to a set value or stated cleaning time, the system will automatically turn into the backwash state. The pressurized water flows from the water collecting device into the filter material layer, and wash it. So the intercepted pollutants fall off and go out of the filtration system. Backwash continues about at least two minutes, and the valve automatically makes the system turn into the filtering state.
Product Parameter
Technical Parameters of sand media filters
| Model | QCS-40 | QCS-50 | QCS-60 | QCS-70 | QCS-80 | QCS-100 | QCS-120 | QCS-140 | QCS-150 | QCS-180 | QCS-200 | QCS-240 |
| Tank diameter | 1200mm | 1400mm | 1600mm | 1800mm | 2000mm | 2200mm | 2400mm | 2500mm | 2600mm | 2800mm | 3000mm | 3200mm |
| Water inlet and outlet diameter | DN100 | DN100 | DN100 | DN150 | DN150 | DN150 | DN200 | DN200 | DN200 | DN200 | DN250 | DN250 |
| Tank material | Carbon steel/stainless steel | |||||||||||
| Tank anti-corrosion | Paint anti-corrosion | |||||||||||
| Single filter area（m2） | 1.1 | 1.5 | 2.0 | 2.5 | 3.0 | 3.8 | 4.5 | 5.0 | 5.3 | 6.1 | 7.0 | 8.0 |
| Filtration speed (m/h) | 20-35 | |||||||||||
| Single unit processing capacity (m3/h) | 40 | 50 | 60 | 70 | 80 | 100 | 120 | 140 | 150 | 180 | 200 | 240 |
| Work pressure (MPa) | 0.2-0.4 | |||||||||||
| Backwash intensity L/(S*m2) | 8—12 | |||||||||||
| Single tank backwash time (s) | 60 | 60 | 90 | 120 | 120 | 180 | 200 | 300 | 300 | 300 | 500 | 600 |
| Backwash interval (h) | 4—8 | |||||||||||
| Filter media form | quartz sand | |||||||||||
| Filter particle size （mm） | 0.6-1.2 | |||||||||||
| Filter material thickness (mm) | 800 | 800 | 800 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 | 1200 |
| Net weight of tank (t) | 0.4 | 0.5 | 0.6 | 1.5 | 2.0 | 2.3 | 2.6 | 2.8 | 3.0 | 3.3 | 3.9 | 4.5 |
| Tank operating weight (t) | 3.5 | 4.5 | 5.0 | 13.5 | 16.8 | 21 | 25 | 27 | 30 | 35 | 40 | 45 |
Product Application
Sand media filtration are suitable for water treatment, sewage treatment, and industrial wastewater treatment, such as electronic power, petrochemical industry, metallurgy and electroplating, papermaking and textiles, pharmaceutical dialysis, food and beverages, drinking water, factory and enterprise water, swimming pools, etc. It can meet the liquid filtration needs of various industries.
electronic power industry
Pharmaceutical Industry
Paper Industry
1. Industrial process water filtration -- such as nozzle, heat exchange station water protection filtration.
2. Industrial circulating water filtration -- steel, metallurgy, paper, heat exchanger, power, petrochemical, food, air conditioning system, and other industries.
Product Advantages
● Compact structure, small size, easy to install and save space.
● The shallow sand filter has good anti-corrosion performance and long service life. It can be installed indoors and outdoors, and can also be installed in layers up and down. It has strong adaptability.
● Automatic backwash: The backwash of this multimedia sand filter is automatically recognized and controlled by the intelligent control system without manual intervention. Even if the suspended solids in the water fluctuate, the equipment may automatically adapt.
● The water supply is uninterrupted：when the equipment is backwashed, the filtration process is carried out at the same time, and the system supplies water as usual.
