Ultra filtration membrane purification system for sewage treatment
Ultrafiltration is a membrane separation technology that can purify, separate or concentrate solutions. Ultrafiltration is between microfiltration and nanofiltration, and there is no obvious dividing line between the three. Generally speaking, the pore size of the ultrafiltration membrane is between 0.05um-1nm and the operating pressure is 0.1-0.5 Mpa. Mainly used to intercept and remove macromolecular substances such as suspended solids, colloids, particles, bacteria and viruses in water.
Ultrafiltration membranes can be divided into organic membranes and inorganic membranes according to membrane materials. According to the appearance of the membrane, it can be divided into flat type, tubular type (internal pressure tube type and external pressure tube bundle type), capillary type, hollow fiber and porous type.
Ultrafiltration membranes are divided into different materials, usually including modified PVC, polysulfone (PSF), polyethersulfone (PES), polyacrylonitrile (PAN), polyvinylidene fluoride (PVDF), etc.
Ultrafiltration membranes can be divided into thermally induced phase separation membranes (TIPS) and non-solvent phase induced separation membranes (NIPS) according to different membrane processes.
Application:
1. Basic filtration industry
Pure water and ultrapure water preparation process as reverse osmosis pretreatment and ultrapure water terminal treatment.
2.Industrial water treatment industry
Separation of bacteria, heat sources, colloids, suspended impurities and macromolecular organics. Drinking water, mineral water purification, fermentation, enzyme preparation industry, pharmaceutical industry concentration, purification and clarification. Concentration and separation of fruit juice, separation, concentration and clarification of soybeans, dairy products, sugar industry, wine, tea juice, vinegar, etc.
Design parameters (take Kanpur internal pressure ultrafiltration as an example)
| Operating pressure | 0.2~0.4Mpa | Inlet water resource | Water produced from pretreatment process |
| Inlet water temperature | 5~35℃ | Inlet water turbidity | ≤50NTU |
| Inlet water PH | 5~9 | Inlet water residual chlorine | ≤200mg/L |
| Recovery rate | ≥90% | Inlet water suspended substance | ≤100mg/L |
| Produced water turbidity | Best turbidity≤0.1NTU | Operation mode | Concentrated water recycling type |
| Conventional turbidity 0.1NTU | Concentrated water direct discharge type |
List of corollary equipment
(take Kanpur internal pressure ultrafiltration as an example,the number of membranes is affected by the influent water quality)
| Model | Water production | Inlet and outlet water(mm) | Concentrated water(mm) | Backwash inlet and outlet(mm) | Upper and lower discharge(mm) | Wash inlet and outlet(mm) | Number of membranes | Equipment weight(T) | 尺寸(长×宽×高 m) Size (length×width×height m) |
| EDI-20 | 20 | DN65 | DN32 | DN125 | DN125 | DN65 | 4 | 1.30 | 1.50×1.40×2.50 |
| EDI-40 | 40 | DN100 | DN40 | DN150 | DN150 | DN100 | 8 | 2.60 | 2.50×1.40×2.50 |
| EDI-60 | 60 | DN125 | DN40 | DN200 | DN200 | DN125 | 12 | 3.70 | 2.50×2.00×3.00 |
| EDI-80 | 80 | DN150 | DN50 | DN250 | DN250 | DN150 | 16 | 4.50 | 3.50×2.00×3.00 |
| EDI-100 | 100 | DN200 | DN65 | DN250 | DN250 | DN200 | 20 | 5.70 | 4.00×2.00×3.00 |
| EDI-120 | 120 | DN200 | DN65 | DN300 | DN300 | DN200 | 24 | 6.80 | 4.50×2.00×3.00 |
1.
1.The Direction of the inlets of the various pipelines can be changed any degrees to meet the needs of the overall layout.
2.For larger flow rates, more filter units can be used in parallel.
Product Tags:
|
|
0.5Mpa 80m3/H Mbr Membrane Biological Reactor In Wastewater Treatment Images
|
