Hydron 4040 is a low-pressure reverse osmosis membrane used for source water with medium saline content. For ordinary heavy metal ions, carbonates, organic matter, colloidal substances, bacteria, viruses and other solid impurities, they cannot pass through the low-pressure membrane, and there is no bacteria or solid scaling in the filtered water. Today, I will take you to understand the product parameters and in use pros and cons in the process.
Specification parameters of the membrane module
Model: Haideneng CPA2-4040000
Type: Low pressure reverse osmosis membrane
Membrane material: aromatic polyamide composite
Effective membrane area: 85ft² (7.9m²)
The thickness of the water inlet screen: 31mil
Average rejection rate: 99.5%
Minimum rejection rate: 99.2%
Water production: 2250gpd (8.5)m³/d)
Test conditions
Nacl solution concentration: 1500mg/L
Pressure: 225psi (1.55MPa)
Temperature: 25℃
Single membrane element recovery rate: 15%:
Detection solution pH: 6.5-7.0
Advantages and disadvantages of reverse osmosis membrane
Hyde 4040 low-pressure reverse osmosis membraneThe working pressure can work in a relatively low environment. Under this pressure, the desalination rate of the reverse osmosis membrane is not high, and the water flow is relatively large. Likewise, energy consumption is greatly reduced. Low-pressure reverse osmosis membranes can be used in high-purity water production, such as electronic pharmaceuticals, food industry wastewater treatment and drinking water production.
Advantages:
1. First of all, Hyde can CPA 2-4040 low-pressure reverse osmosis membrane requires lower water supply pressure, which greatly reduces the investment cost of pump-related equipment, thereby reducing the cost of membrane elements the cost of. The low-pressure reverse osmosis membrane can reduce the operating pressure of the membrane element on the basis of ensuring a high desalination rate.
2. Can effectively prevent secondary pollution. Low-pressure reverse osmosis membrane and ultra-low pressure reverse osmosis membrane are larger than cellulose acetate membrane, with low working pressure, large water yield, high desalination rate, and high desalination rate, which greatly saves the cost and capital investment of the system. Low-pressure reverse osmosis membranes retain all the advantages of reverse osmosis membranes. Excellent chemical resistance.
3. Hyde CPA 2-4040 low-pressure reverse osmosis membrane is an ideal membrane module for producing high-purity water. Compared with traditional reverse osmosis membrane, it has the same desalination rate under low pressure as high pressure. Neutral water flux, high surface potential, high hydrophilicity, and high stain resistance. Sewage containing impurities is particularly suitable for the treatment of surface active substances.
Defects:
Haideneng CPA 2-4040 low-pressure reverse osmosis membrane system has poor distribution balance of production water along the system process, especially in high supply water salt content, high supply water temperature and long system process conditions Under the circumstances, it will lead to a serious imbalance in the distribution of membrane production water. Therefore, its working environment should be limited to small systems with low salt content, low water supply temperature or short system process.