Product Details:
Payment & Shipping Terms:
|
Product Name:: | Liquid Filter Material | Place Of Origin:: | Hebei, China |
---|---|---|---|
Usage:: | Remove Floating Oil | Core Component Warranty:: | 1 Year |
After-sales Service Provided:: | Online Support | Filter Material:: | Integrated Process |
Size:: | Standard | Operating Media:: | Hydraulic Oil, Water Glycol, Emulsion |
High Light: | Cutting Fluid Wastewater Membrane Treatment,Wastewater Membrane Treatment System |
Emulsified oil cutting fluid wastewater membrane treatment
The characteristics of emulsified oil cutting fluid:
The cutting fluid mainly contains oil and surfactant, and the emulsified oil is prepared by diluting with water as needed and then adding emulsifier. Since the emulsifier contains a surfactant, when it is added to water, the free energy of the interface between oil and water is greatly reduced to the lowest value, and the oil is dispersed in the water. At the same time, the surfactant also produces ionization, so that the oil droplets are charged, and it also adsorbs a layer of water molecules to be immobilized to form a hydrated ion membrane, and the counter ions in the water are adsorbed on the outer surface and divided into The immobile adsorption layer and the movable diffusion layer form an electric double layer, so that the oil droplets are surrounded by an elastic, firm, and homogeneously charged hydrated ion membrane, which prevents the oil droplets from interacting with each other. The possible combination during collision enables the oil droplets to be stabilized in the water for a long time and become a white emulsion. The oil particle size is generally between 0.1-25μm, and it is difficult to coalesce between oil particles, keep stable for a long time, and it is difficult to separate.
In the use of cutting fluid, due to the mixing of fine chips, abrasive chips, grinding wheel dust, dust and other impurities, it seriously affects the surface roughness of the workpiece, reduces the service life of the tool and the grinding wheel, and accelerates the wear of the machine tool and the circulating pump. In addition, due to oil leakage from the machine tool, the lubricating oil falls into the water-based cutting fluid, causing the emulsion to produce emulsifiable oil. The surfactant in the synthetic fluid reacts with the lubricating oil and turns into an emulsion, which changes the quality of the water-based cutting fluid. Lead to a decline in cooling performance and shorten the life cycle.
Old craft:
Cutting fluid emulsified wastewater is extremely difficult to treat because of the mixing of oil and water at the molecular level, and is classified as a hazardous substance. At present, the general domestic technology is to add chemicals to demulsify to treat. The oil is mixed with other magazines and chemicals to turn into sludge, and then the sludge can be treated. Follow-up processing. Other traditional treatment methods such as air floatation, biochemical methods, etc. However, these traditional methods are difficult to achieve the desired treatment effect.
New technology (membrane method treatment): through the membrane method, after the second membrane treatment, the first membrane treatment, the oil and water can be basically separated, and the concentrated liquid after the treatment is processed. Then the clear liquid of the primary reaction is processed by a secondary membrane for further processing to separate the oil and water, and the concentrated liquid after the treatment is concentrated.
Product name | Liquid filter material | Principle | Pressure filtration |
Applicable object | water | Style | vertical |
Nature | materials with high hygiene requirements | Filter media type | quartz sand, activated carbon |
Advantages of the new process (membrane treatment):
1. High filtration accuracy, oil retention rate is as high as 99.5%, and the effluent oil content is less than 10ppm
2. There is no need to use expensive demulsifiers and flocculants, and the operating cost is low
3. The effluent has low COD and suspended solids content, and can be discharged up to the standard after simple treatment;
4. The change of wastewater quality has little effect on the filtering effect, and it is easy to operate and maintain;
5. The membrane element has good chemical stability, resistance to microbial erosion and long service life;
6. Cinda membrane has high pollution resistance, low requirements for wastewater pretreatment, and can maintain high flux filtration for a long time;
7. The filtration process only uses pressure as the power of membrane separation, the separation device is simple, the operation is simple, and the process parameters are easy to control.
Contact Person: LFYRS