Common problems of tubular microfiltration membrane in conventional zero-emission treatment process

Common problems of tubular microfiltration membrane in conventional zero-emission treatment process

by:Ocpuritech     2021-03-24
In the article author tubular microfiltration membrane FAQ conventional zero emissions treatment technology: With the increasing pressure of environmental protection, 'zero emission' requirement has been placed in front of major power plants, both to achieve 'zero emissions' again How to control the cost of enterprises, how to achieve a balance between the two, environmentally friendly tubular microfiltration membrane provides a reasonable new way for major power companies. Characteristics, technology and problems of desulfurization high-salt wastewater in power plants: The impurities in desulfurization wastewater mainly come from flue gas and limestone. Various elements in coal, such as F, C1, Cd, etc., produce a variety of compounds during the combustion process, which enter the absorption tower of the desulfurization device with the flue gas, and are dissolved in the absorption slurry. The desulfurization wastewater is generally weakly acidic, with a pH of 4-6, high suspended solids content (the suspended solids in the desulfurized wastewater are mainly gypsum particles, silicon dioxide, and iron and aluminum hydroxides), high salt content and high hardness. Common problems of conventional zero-emission treatment process: 1. Calcium and magnesium scaling and PAM cause pollution to UF and desalination membrane system, and long-term use makes the membrane flux unable to recover. 2. Generate more sludge and increase operating costs. 3. A large amount of sand carbon filter backwash wastewater and UF concentrated water increase the power consumption and chemical cost of reprocessing. 4. Long process flow, cumbersome control and large area. If the PH value is controlled accurately and the dosage is sufficient, calcium can be processed to less than 10ppm, and magnesium can be processed to less than 20ppm. In summary, in the 'zero discharge' application of power plant wastewater, the use of tubular microfiltration membrane solution will occupy a small area , The evaporation is small, it is a good choice. Environmental protection has been widely used in the electronics, chemical, medical, automotive, food, biological, laboratory and other industries across the country. We have rich engineering experience and not only provide customers with targeted program design and perfect technical support, but also Standardized construction management and professional technical support.
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