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Ceramic UF Membrane for Water Purification Plant
description
Ceramic membrane is inorganic ultra-filtration membrane made of Al₂O₃, which used for water treatment system developed based on traditional tubular and flat-sheet ceramic membrane. It effectively solves the technical defects found in the use of traditional ultrafiltration membranes (Organic membrane -- PVDF, PES, PVC)such as fiber breakage, membrane fouling, and membrane lifespan etc. Its advantages of easy cleaning, long service life, high strength, oil resistance, strong acid/alkali resistance, and high flux make it a better choice for drinking water, food and chemical industry.
(the internal structure of ceramic UF membrane)
(ceramic UF membrane with UPVC housing)
In water treatment plants, the core function of ultrafiltration membranes is physical sieving. Like an "extra-fine sieve," it efficiently removes suspended solids, colloids, bacteria, viruses, and other harmful substances from the water with its extremely small pores, thereby significantly improving the safety and sensory quality of drinking water.
Along with the development of the tap water requirement, the traditional ultrafiltration membranes which produced from organic material such as PVC, PE, PDFE,etc are hard to be compatible as the risk of leakage of micropollutants after filter system aging. To instead, ceramic UF membrane becomes more and more popular.
(UF membrane with PVC)
(Ceramic UF membrane)
Comparison of inorganic & organic membrane
| ltem | ceramic membrane | organic membrane |
| Service life | Above 5 years | Aboout 2 years |
| Recommended flux (L/㎡.h) | 50~200 | 15~50 |
| Pollution index | Purely natural and pollution-free | Small amount of plastic chemical pollution |
| Chemical stability | Good, resistant to acid and alkali corrosion,resistant to organic solvents | It is susceptible to corrosion and dissolutionfrom organic liquids and chemical reagents |
| Biodegradability | Resistant to microbial attack | Easily decomposed and renderedineffective by microorganisms |
| Clean | Compatible with a variety of chemicalcleaning agents, and can also be used forhigh-impact cleaning with compressed air | Requires specific chemical cleaning andgentle physical cleaning |
| Mechanical strength | High mechanical strength, adaptable tovarious operating environments such as highpressure, positive pressure or negative pressure | Relatively low intensity |
| Save method | Simple, dry storage, prevent impact | Strict requirements exist for storagetemperature and relative humidity, andmeasures must be taken to preventmembrane hydrolysis, microbial growth,and membrane shrinkage and deformation |
esign of water purification plant
Waterworks Planning and Design:10000t/d
Land Area: 1914m²
Process Overview
High-level drinking water source — Chemical dosing and flocculation — High-level sedimentation and filtration tower — Self-cleaning filter — Ceramic ultrafiltration membrane module — Disinfection — Water storage tank — External pump — User
Ceramic Ultrafiltration membranes typically have a filtration precision between 0.01 and 0.02 micrometers (μm) (equivalent to 10-20 nanometers). This pore size is smaller than the size of most bacteria and viruses, enabling highly efficient and stable purification.
Composition of ceramic UF membrane module
• Ceramic UF membrane
• Programmable valve
• Flow meter
• Pressure sensor
• Meter
• PLC control cabinet
• Slow release device
• Releaser
• Supporting auxiliary machinery
Membrane Module Dimensions
| NO. | Overall Dimensions(mm) (LxWxH) | Water Intlet(mm) | Water Outlet(mm) | Concentrate Outlet(mm) | Wastewater Outlet(mm) | Membrane Area(m2) | Number of Water Membranes(pcs) | Production(m3/d) |
| 01 | 4000*1500*2700 | DN125 | DN1OO | DN80 | DN150 | 328/392 | 16 | 1000 |
| 02 | 6000*1500*2700 | DN150 | DN125 | DN1OO | DN200 | 574/686 | 28 | 2000 |
| 03 | 5000*2300*2700 | DN200 | DN150 | DN1OO | DN200 | 902/1078 | 44 | 3000 |
| 04 | 6000*2300*2700 | DN200 | DN200 | DN125 | DN250 | 1148/1372 | 56 | 4000 |
| 05 | 7200*2300*2700 | DN250 | DN200 | DN150 | DN300 | 1476/1764 | 72 | 5000 |
Notes: 1. Reference values are based on tap water quality upgrading; 2. The above parameters are for reference only