Multi-media Filter
Filtering with media filters, also known as depth filtration, is done by filtering water through a thick layer of graded particles, called the filter bed. These particles can be sand, gravel or other granular materials. The filtration degree depends on the effective size of the bedding and the water velocity through the filter.
The Filtering Process
Raw water enters from the filter inlet (1) and percolates through the filter bed (2). Suspended materials come into contact and attach to the media particles. Clean water flows through the filtration nozzles (3) and out of the filter via the outlet valve (4).
The gradual dirt buildup in the filter bed causes an increase in the pressure differential across the filter and when it reaches its maximum design value, a cleaning process should be performed. In automatic media filter installations a pressure differential switch senses the pressure differential and when it reaches a preset value, the self cleaning process begins.
The function of multi-media filter is mainly reflected in the following aspects:
1. Remove suspended impurities
The multi-media filter can effectively remove suspended impurities in water, such as mud and sand, suspended solids, colloids, and organisms such as algae. The removal of these impurities can reduce mechanical damage and contamination to subsequent equipment, such as reverse osmosis membrane elements.
2. Improve water quality
After the water is treated with a multi-media filter, the turbidity can reach below 3 degrees, which greatly improves the transparency and cleanliness of the water quality. The effluent suspended matter can be less than 5 mg/l, meeting the needs of some water treatment process.
3. Pretreatment equipment
Multi-media filters are often used in pretreatment equipment for deep seawater purification, and various filter materials can be added according to process requirements. It can be used not only on its own, but also as a pre-filtration for advanced treatment of water quality (exchange resin, electrodialysis, reverse osmosis) .
Application scope
Multi-media filtration can be used for domestic water pretreatment, swimming pool water treatment, peripheral water filtration system, surface water, groundwater turbidity removal, wastewater treatment, reverse osmosis, electric sea analysis, high ion exchanger, ultrafiltration and other continuous pretreatment, power generation, chemical, paper, beverage and other raw water filtration treatment. Container type shallow sand filters can be used in industrial water equipment.
Application case
Company Profile
Hengshui Hanna Trading Co.,LTD
| Manufacturing Experience |
20+ years |
| Treatment Solutions |
120+ |
| Factory Area |
300+ Squares |
| Quality Rate |
99% |
| Exported Countries |
50+ |
| Machine Output |
8000+pieces/year |
1.Products are in stock, small orders can be shipped quickly.
2.No days off, guaranteed delivery on time.
1.Q: Where is your factory?
A:Hengshui, Hebei, China.
2.Q:How long is the delivery time?
A:For standard water tank (less than 100m³): it would be 5-8days;WIth large quantity of panels in stock, we can guarantee a quick lead time and a more favorable price.
For non-standard water tank and customized water tank: according to client s specific requirements, it would be 15 to 30 days.
4.Q:What is the warranty time for your products?
The warranty time of our products is 12 months, which guarantees a good after-sale service.
3.Q:Do you provide installation guidance?
Yes, we can provide installation guide: installation video or installation assistance on site by our engineers.
4.Q: Can we undertake EPC projects?
A: Of course, we are a mature company in all aspects, and our aim is to provide one-stop services without any intermediate links.
5.Q: Can you make customized products?
A: Yes, of course, if you can provide us with detailed specifications or drawings. Our mission is to make customers ideas on the products and provide the customer satisfied solutions.
6.Q: Can I use our own designed package?
A: Yes, size, color, logo, and packaging style all can be customized.
7.What's the guarantee, in case the water tank breaks down?
The water tank has one year's guarantee. If it breaks down, generally speaking, our technician will figure out what the problem may be, according to client's feedback. Parts will be replaced for free if the problems are caused by quality fault.
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