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Anaerobic biodegradation of new materials through a series of chemical and biological processes to introduce plastics into the anaerobic environment of biodegradation (this process is called biological assimilation). Allow microorganisms to create a biofilm structure to penetrate the plastic. As long as the biofilm is formed in anaerobic/anaerobic conditions, it is in landfill and deep-sea environments; တစ်ချိန်တည်းမှာပဲ, it helps to expand the molecular structure, create more space for microorganisms, and send chemical signals on the polymer chain to attract other microorganisms to eat plastics, which improves the biodegradation rate, so that plastic products only produce carbon dioxide, biogas (methane) and humus (organic matter), which is the same biological process and residue as organic matter. When pet plastic products (sheets and bottles) are used and put into landfill or seawater, the biodegradation of PET plastic products (sheets and bottles) can be promoted in two ways: first, as an attractant for the growth of microorganisms on and in pet plastics; Second, through weakening or through the weakness in the pet chain or in other forms to show more weakness. When new materials are added to the mixture of pet plastics for anaerobic degradation, it will interfere with the mixture of pet plastics. At this time, enzymes in landfills or sea water will look for weaknesses in the pet chain, reduce the binding strength of the pet chain, interfere with the carbon emission of pet, and make pet plastics easier to be used as a food source for enzymes. Anaerobic degradation in nature occurs all the time, because the process is relatively slow, so it is not easy to be detected. သို့သော်, pet plastics added with new materials of anaerobic microbial degradation can greatly accelerate the process, which allows pet plastics to complete the biodegradation process at a higher rate. The process of biodegradation includes the following: aerobic stage – in this stage, Enzymes and decomposition chemicals act as catalysts for the biofilm covering pet plastics. During this period of time, aerobic microorganisms gradually form, and the moisture in the garbage continuously accumulates. The hygroscopicity of standard pet plastics is relatively small, but the masterbatch will lead to further swelling and weaken the polymer bond. This creates molecular space for microbial growth, which starts the aerobic degradation process, in which oxygen is converted into carbon dioxide. Anaerobic, non-methanation stage – when the oxygen concentration is sufficiently reduced, the anaerobic process begins. In the initial stage (hydrolysis), microbial colonies will phagocytize particles and reduce macromolecular polymers to simpler monomers through an enzymatic process. Organic masterbatch leads to extra swelling and opening of PET polymer chain and increases quorum sensing. This further stimulates microorganisms to increase their colonization and consumption of polymer chains. Over time, acids occur, in which simple monomers are converted into fatty acids. At this stage, the production of carbon dioxide occurs rapidly. Anaerobic, methanogenic, unsteady microbial colonies continue to grow, engulf the pet polymer chain and create more and more molecular space. In this stage, acetic acid is produced and fatty acids are converted into acetic acid, carbon dioxide, and hydrogen. As the process continues, the rate of CO2 decreases and hydrogen production stops. Anaerobic, steady-state stage of methanogenesis – the final stage of decomposition involves methanogenesis. As microbial colonies continue to devour the rest of the surface of PET polymer, acetate is converted to methane and carbon dioxide, and hydrogen is consumed. This process continues until the remaining element is humus. This highly nutritious soil creates and improves the environment for microorganisms and enhances the final stage of decomposition.