MULTISTAGE TREATMENT FILTRATION
Multi-Media Water Filter is a process that uses two or several filter media to pass high-turbidity water through a certain
thickness of granular or non-granular materials to effectively remove suspended impurities and clarify the water.
The filter material is quartz sand, anthracite, AFM™, Activated Carbon, SuperSolve™, IronSolve™ etc. It is mainly used
for water treatment to remove turbidity, iron & magnesium content water, and pre-treatment of pure water. The
effluent turbidity can reach below 3 degrees.
Multi-media filter, which uses more than two media as the media filter of the filter layer, is used to remove impurities
and adsorb sewage in industrial circulating water treatment system, so that the water quality meets the requirements
of recycling. The role of filtration is mainly to remove suspended or colloidal impurities in water, especially to remove
tiny particles and bacteria that cannot be removed by precipitation technology.
Definition of Model
The removal of Arsenic, Ferric and Manganese
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Chemical
Parameter |
Soluble
Fraction | Insoluble | Drinking Water
Standard | AFM Performance |
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Manganese | Mn2+ | Mn4+ | 50 ug/l | >80% |
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Ferric | Fe2+ | Fe3+ | 200 ug/l | >95% |
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Arsenic |
As3+ | As5+ | 10 ug/l | >90% |
Iron, manganese and arsenic are often found in borehole/tube wells and
ground-water at varying concentrations depending upon the geology of
the ground. The process used by HYDRONATOR MULTI-STAGE TREATMENT SOLUTION
to remove the chemicals is as follows.
Process
1. Oxidation reactions to convert metals from soluble ionic form to insoluble oxidized precipitate, pH correction and redox correction.
2. Decantation may be required if the concentrations are above 5 mg/l, if not proceed to AFM filtration
3. AFM filtration to remove the suspended metal oxide solids, there will also be adsorption reactions and surface oxidation reactions.
Procedure
Oxidation :
This is achieved through aeration of the water. The water is aerated for a period of no less than 30 minutes. If water flow is
50 m3/hr of air and tank volume is 25m3 of water. Bubble Spray Aeration System apply for fine bubble drop in air diffusers for this
application.
pH :
The pH of the water should be increased to a value over pH 7.5.
Redox :
The aeration system should increase the redox potential of the water. It is important to raise the potential to as high a value as possible.
Certainly it should be over 300mv for ferric and arsenate. Manganese needs an additional oxidising agent to raise the potential to 500mv.
- Manganese oxidation requires aggressive aeration and an additional oxidising agent, such as hypochlorite, chlorine dioxide, hydrogen peroxide or ozone in order to raise the Redox potential to 500mv +/- 25mv.
- Ferric oxidation is simple, the aeration system will more than suffice.
- Arsenic oxidation also benefits from the addition of ferric to the water. Arsenic is removed by oxidation and co-precipitation
with ferric, example 0.1 mg/l As requires up to 1 mh/l of ferric (as ferric chlorine).
Multi Stages Filtration Process
Pretreatment of the water prior to filtration bt AFM is very important. AFM will remove the metals and metalloid by the following
mechanisms.
- Activated Filter Media - Oxidation and adsorption
- High Grade Activated Carbon - Adsorption of sub-micron metal oxide particles.
- Super Solve & Iron Solve - Physical filtration of most Particles down to 1 micron.
CONTROL VALVE
Manual Control Valve
- EASY OPERATE
- SUITABLE FOR COMMERCIAL & INDUSTRY, WATER TREATMENT PLANT, RESIDENTIAL FILTRATION SYSTEM
- CORROSION RESISTANVE
- TANK SIZE RANGE (Inch) 16~21
Automatic Control Valve
- LED DYNAMIC SCREEN DISPLAY
- HAVING INTERLOCK FUNTION
- SUITABLE FOR COMMERCIAL & INDUSTRY WATER TREATMENT PLANT. RESIDENTIAL FILTRATION SYSTEM
- CORROSION RESISTANVE
- TANK SIZE RANGE (Inch) 16~21
Specifications
MANUAL BACKWASHING CONTROL VALVE
| MODEL | WATER PRESSURE | INLET/OUTLET | DRAIN | MAX FLOWRATE | BASE | RESER PIPE | |
| F56A | 0.15-0.4 Mpa | DN25 | DN25 | 4m3/h | 2.5” - 8NPSM | 1.05” OD | |
| F56K | 0.15-0.4 Mpa | DN25 | DN20 | 4m3 /h | 2.5” - 8NPSM | 1.05” OD | |
| F56D | 0.15-0.6 Mpa | DN50 | DN40 | 10m3 /h | 4” - UN | 1.05” D-GB | |
| F77BS | 0.2-0.6 Mpa | DN50 | DN50 | 15m3 /h | 4” - UN | 1.05” D-GB |
AUTOMATIC BACKWASHING CONTROL VALVE
| MODEL | WATER PRESSURE | TRANSFOMER OUTLET | INLET/OUTLET | MAX FLOWRATE | BASE | RESER PIPE | |
| F71B1 | 0.15-0.6 Mpa | DC12V,1.5A | DN20 | 2m3/h | 2.5 | 1.05” OD | |
| F67B | 0.15-0.6 Mpa | DC12V,1.5A | DN25 | 4m3 /h | 2.5 | 1.05” OD | |
| F75B1 | 0.15-0.6 Mpa | DC12V,1.5A | DN50 | 10m3 /h | 4.5 | 1.05” D-GB | |
| F77B1 | 0.15-0.6 Mpa | DC12V,1.5A | DN50 | 18m3 /h | 4”-8UN | 1.05” D-GB |
WATER TREATMENT FILTER MEDIA FOR APPLICATION
We Choose
HIGH QUALITY
Water Treatment
Media
Nano Silica Sand
Size: 1.2 - 2.4 mm
Nano Silica Sand is an extremely effective
filter media able to hold back precipitates
containing impurities up to 10 micron (1.0mm)
Nano Silica Sand
Size: 0.8 - 1.2 mm
Nano Silica Sand is an extremely effective
filter media able to hold back precipitates
containing impurities up to 10 micron (1.0mm).
Filter sand size, angularity and hardness are
the important filter and characteristics to ensure proper filtrering
Nano Silica Sand
Size: 0.45 - 0.8 mm
Nano Silica Sand is an extremely effective
filter media able to hold back precipitates
containing impurities up to 10 micron (1.0mm)
Super Solve Media
- Removal reddish - brown staining on bathroom & kitchen fixtures
- Prevent stains in washing machines and laundry
- Clothes are cleaner and whites are whiter
- Prevents staining on dishes dishwasher
- Cleaner water at every rap including showers
- Low maintenance
Iron Solve Media
- Removal reddish - brown staining on bathroom & kitchen fixtures
- Prevent stains in washing machines and laundry
- Clothes are cleaner and whites are whiter
- Prevents staining on dishes dishwasher
- Cleaner water at every rap including showers
- Low maintenance
High Grade Activated Carbon
- Removal of taste, odor, chlorine, ozone, organic contaminants and bacteria from process water
- Protection for ion-exchange resins
- Replacement of sand in rapid Gravity Sand Filters
- Improvement of colour, taste and odor of beverages
Zeolite Filter Media
- Zeolites is a natural mineral that are now widely used in domestic and commercial for water purification, softening and other applications, zeolites are used to separate molecules (only molecules of certain sizes and shapes can pass through), it can provide you the best water filtration.
- 100% Authentic Advance Graded Zeolite **ZeoPlus**
- 0.06mm - 1.2mm
- Advance Filtration
- Ammonia Absorption
- Enhance Backwashing
- Product of Australia
Activated Filter Media
- Highly engineered activated filter media made from specific upcycled colored glass types .
- Direct replacement for sand in any sand filter.
- AFM® grade 1 is certified to remove more than 90% of 4 micron particles, more than double the fine particle retention of sand.
- AFM® surface activation prevents biofouling, improves biosecurity and stops channelling.
- AFM® has a minimum service life in excess of 10 years and provides a short pay-back.
Suitable For
Project Completion
