What advantages does the MBR process of Guangdong papermaking wastewater treatment equipment bring to the equipment?
What advantages does the MBR process of Guangdong papermaking wastewater treatment equipment bring to the equipment? Author: With the enhanced awareness of environmental protection and the shortage of water resources, papermaking wastewater treatment requirements increasing, the traditional method of water treatment problems of low processing device volume load, large area, water quality is unstable, complex management operations Wait for the question. In response to the above problems, a variety of new wastewater treatment technologies have emerged, the most striking of which is the application of membrane technology to the membrane bioreactor (Membrane Bioreactor abbreviated MR) technology formed in wastewater treatment. In view of the characteristics of MER technology, in recent years, scholars have continuously introduced MER technology into the treatment of papermaking wastewater, and certain achievements have been made. Biological methods include aerobic biological treatment and anaerobic biological treatment. Among them, aerobic biological treatment mainly includes activated sludge method and biofilm method. Anaerobic treatment mainly includes anaerobic biological filter, upflow anaerobic filter, upflow anaerobic sludge bed (UASB), anaerobic fluidized bed (AFB), anaerobic attached membrane expanded bed (AAFEB) and anaerobic Oxygen Floating Biofilm Reactor (AFBBR) and Anaerobic Baffled Reactor (ABR), etc. For papermaking wastewater treatment, due to its complex nature and difficult to degrade, a single papermaking wastewater treatment method cannot achieve good results. Therefore, in practical applications, combined processes are often used to combine different papermaking wastewater treatment methods. A better treatment effect can be obtained. As a combined process, MBR ingeniously combines the traditional biological treatment technology with the membrane filtration treatment process. Through the membrane filtration technology, microorganisms can be trapped in the reactor to prevent the loss of organisms during the biological treatment process. Membrane filtration technology can improve the quality of the effluent and basically achieve the discharge of papermaking wastewater. The organic matter in papermaking wastewater treatment is mainly consumed by microorganisms and converted into small-molecule inorganic matter, while the membrane in the reactor can intercept and remove large-molecule biologically difficult-to-degrade substances. The most fundamental feature of the MBR process is to replace the secondary settling tank part of the traditional activated sludge method with a membrane separation device, which solves the problem of poor solid-liquid separation effect in the process of treating papermaking wastewater by the traditional activated sludge method. MBR can generally be divided into split type and submerged type. Simply put, it is split type and integrated type. The former mainly separates the membrane module from the biochemical reaction. The advantage of this method is that it can effectively avoid the problem of microbial contamination of the membrane module. Give full play to the removal of organic matter by the biochemical reactor, and the process parameters can be individually adjusted. The submerged reactor puts the membrane module into the biochemical reactor. The process is relatively simple to operate in the actual operation process and easy to install. The biggest drawback is the problem of membrane pollution. Microbes decompose organic matter at the same time. Many extracellular polymers are produced. The ratio of protein to sugar in the water can reflect the release of this extracellular polymer. Due to the large molecular weight of the protein, the formed extracellular polymer is easy to attach to the membrane, resulting in The water flux of the membrane decreases, so the MBR reactor needs to be backwashed regularly to avoid clogging and fouling of the membrane. MBR membrane modules mostly adopt capillary type, spiral type, central control fiber type, tube type, flat plate type, etc. Separate MBR membrane modules mainly adopt flat plate and tube type, while submerged MBR membrane modules mostly adopt hollow fiber type and flat plate type. Papermaking wastewater treatment in my country has the characteristics of huge production, complex composition and difficult treatment. Papermaking wastewater is mainly divided into three categories: cooking waste liquid, middle pulping wastewater and papermaking wastewater. According to the different properties of the three types of wastewater, they should be separated. Choose the appropriate process for processing. Existing papermaking wastewater treatment processes are difficult to improve the overall properties of wastewater simply by physical and chemical treatment or biological treatment. Therefore, a combined treatment process combining biology and physicochemical treatment has a good application prospect in papermaking wastewater treatment. Environmental protection has been committed to providing industry users or direct owners with the best water treatment solutions for many years. According to the different needs of customers in the paper industry, combined with rich construction experience, the papermaking wastewater treatment technology has been optimized through the combination plan, and the papermaking wastewater treatment technology has been optimized through a complete papermaking industry. Industrial wastewater process debugging program, manufacturing perfect integration of papermaking wastewater treatment equipment, welcome customers to call for technical consultation.
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