Ultrafiltration UF Waste Water Treatment Systems
Ultrafiltration (UF) systems for water treatment purposes that fit the needs of different industries and application such as chemical and pharmaceutical manufacturing, food and beverage processing, and waste water treatmentetc.
How Ultrafiltration (UF) Systems Work?
Ultrafiltration (UF) systems have diverse membrane filtrations where hydrostatic pressure pushes solvents against a very fine membrane. They block suspended particulates and solids that are large while water and solutes with a lower molecular weight are allowed to flow through the membrane.
Industry and research employ this separation process for purifying and concentrating macromolecular (103 - 106 Da) solutions, which are usually protein solutions. Ultrafiltration is similar to microfiltration, nanofiltration or gas separation, except it differs in the molecule sizes it blocks.
To meet critical discharge criteria, ultrafiltration systems remove the need for clarifiers and multi-media filters. Effective ultrafiltration systems use membranes that can be immersed, back-flushable, and air scoured. Spiral wound UF/MF membranes offer excellent performance for the clarification of process water and waste water.
Ultrafiltration (UF) Systems Advantages
Ultrafiltration (UF) membranes systems are more reliable than a conventional multi-media filter, which removed approximately 10 micron or larger of matter, where an ultrafiltration membrane pore size ranges from 0.01 to 0.10 micron. In addition to superior turbidity removal, UF membranes efficiently remove bacteria and most viruses.
- Superior filtration performance with high flux
- Very small nominal pore diameter (0.03 µm)
- Efficiently removes bacteria and viruses
- Occasionally back washed and air scoured to boost performance and removing the fouling layer to extend operating life
- Low fouling membrane modules
- UF Outside-In or Inside-Out Configuration permits reduced plugging and higher solids loading
- Basic, vertical, modular design permits low cost, compact systems
- Effective membrane cleaning has a high chemical resistance and temperature tolerance
Application:
1. For sewage treatment plants new-built or rebuilt project in large cities
2. This technology can directly process urban sewage water into high-quality recycled water for urban greening, landscape water, road spray, industrial cooling water,
fire water, residential flushing and car washing etc.
3. For small and medium sized reclaimed water project in industrial and mining enterprises, hotels,
airports, railway stations, hospitals, office buildings, residential quarters and so on.
4.The technology is the best choice for small and medium reclaimed water projects, which has the
features of occupation saving, layout flexibility, situ water fetching, situ processing, situ reuse etc.
The whole system consists of pre-treatment section,micro filtration membrane desalination section
and back-end processing section.
1) pre-treatment section:which consists of multimedia filter,active carbon filter and ultrafilter.The main
function of this section is to remove the substance which will pollute the micro filtration membrane.
2) Micro filtration membrane section,which makes use of Nanometer level physical aperture to separate
purify, refine and concentrate the substance in liquid.
1 pre-treatment section
This pretreatment section consists of multimedia water filter,active carbon filter and ultrafilter.the main
function is to remove the particles ,colloid,organic matter, color degree and residual chlorine in the raw water,which
reach the requirement of water flowing into the micro membrane and protect the membrane.
the pre-treatment section will solve these problems,
(1) Prevent the micro membrane to be scaling.
(2) Prevent the colloidal substances and suspended solid particles to be fouling.
(3) To prevent the large molecular organic matter, and microbial to be fouling;
(4) To prevent the oxidation substances damaging the membrane .
(5) Maintain the equipment in the long-term stable operation and yield stability.
3. 1 pre-treatment section
This pretreatment section consists of multimedia water filter,active carbon filter and ultrafilter.the main function is to remove the particles ,colloid,organic matter, color degree and residual chlorine in the raw water,which reach the requirement of water flowing into the micro membrane and protect the membrane.
the pre-treatment section will solve these problems,
(1) Prevent the micro membrane to be scaling.
(2) Prevent the colloidal substances and suspended solid particles to be fouling.
(3) To prevent the large molecular organic matter, and microbial to be fouling;
(4) To prevent the oxidation substances damaging the membrane .
(5) Maintain the equipment in the long-term stable operation and yield stability.
3.2 Technical parameters:
1. Raw water pump
This system equip with one sets of stainless raw water pump,which could provide a water supplying pressure to ensure water stable homogeneous flow through pretreatment equipment.
structure |
horizontal centrifugal pump |
quantity |
1unit |
Running details |
Flow rate:2m3/hour
lift:30m |
material |
shell:stainless steel
impeller:stainless steel |
raw water pump is prepared and purchased by customer |
2. Multimedia water filterThe turbidity of treated water after multimedia filter is 2 degree below.
Designed parameters |
size:dia350×1400
structure:vertical cylinder
qty:1 unit |
Designed water output |
1 m3/hour |
Running speed |
8~12 m/hour |
Designed pressure |
0.6MPa |
Trial water pressure |
0.6MPa |
Filtration material |
Fine quartz sand |
Main material |
RFP with PE lining |
manufacture |
Yilida |
3) active carbon water filter
Working principle:adsorption capacity of activated carbon is mainly in the form of physical adsorption,it also can be some selective adsorption,that is chemical adsorption.
parameters |
|
Basic parameters |
size:dia350×1400,qty:1 unit
structure:round cylinder
|
capacity |
1 m3/hour |
Running speed |
10~15m/hour |
Designed pressure |
0.6MPa |
Trial water pressure |
0.6MPa |
Filtration material |
Nut shell activated carbon
Grain size:1.6~4.0mm |
Material for main filter |
RFP with PE lining |
manufacture |
Jiangsu Yilida |
Activated carbon is main adsorbent extensively applied in water treatment , lattices in various shapes and sizes which generated during the activation processing ,it will form a huge surface area,so contact surface between carbon and water is very large, and the absorption capacity is strong .Effectively ensure the service life of
follow-up equipment, improve the water quality of effluent.During manufacturing of pure water,the role of activated carbon is mainly manifested in following four aspects,reduce oxidation degree in water,avoid organic substances into the contamination of RO membrane module,removal of residual chlorine in water,remove three
halide material (THM).
Set up a vertical active carbon filter with capacity of 0.5m3/h and dimension of dia350×1400,
and high quality shell charcoal filtration material will be filled in the filter.
4) Ultrafiltration filter(UF)
parameter |
|
structure |
structure: straight cylinder
size:dia170×650 |
capacity |
1m3/hour |
quantity |
1unit |
Material for main filter |
Stainless steel |
Filtration cartridge |
|
material |
PP |
filtration |
5μm |
quantity |
3units |
length |
10" |
Control mode |
Replace the cartridge as per pressure difference |
Manufacture |
Yilida |
The reverse osmosis device configured with an ultrafilter(UF) whose output of 1m3/hour and filtration precision of 5 μm ,which could prevent the particles from entering the pump and RO membrane module,or scratching the surface of the membrane.There are 7 pieces 40 "polypropylene melt-blown cartridges in the precision filter container ,when the pressure difference reached 1kg/cm3 we should replace it with a new one..Under normal operating conditions, this filter cartridge can maintain its life of more than 2 ~ 3 months , and filter structure
could meet the requirements of rapid replacement on filtration cartridge.
5.Micro membrane
parameters |
|
model |
4040 |
capacity |
1m3/hour |
quantity |
4 sets |
Manufacturer |
Hydra-nautic |
The main function is to remove suspended particles, colloids, organics,microbes, bacteria, virus and bacillus.decolorization, removing oil .Degrades liquid turbidity,COD and BOD impurities.Micro membrane technology has been applied in pre-treatment of sea water purifying,reclaimed water reuse and RO, chilled water treatment and preparation, purification and reform of rural water and ultrapure water.compared with current technology,it is of standard design,lower cost,higher output and no- continuous dosing and stable running.but with less labor ,less occupation,higher automatic running .
6. UV sterilizer
quantity |
1set |
Running parameter |
capacity:1 m3/hour |
Material |
304(SS304) |
Total power |
40W |
Manufacturer |
Jiangsu Yilida
|
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