In practical applications, effectively promoting the degradation of Biodegradable Film & Bag is a process involving many factors.
1. Microbial activity
Microbial species and quantity: Specific microbial species present in soil and water, such as bacteria and molds, are essential for the biodegradation process. A rich microbial population can accelerate the decomposition of plastics.
Optimizing microbial growth conditions: By adjusting parameters such as pH, temperature and humidity, the growth and activity of microorganisms can be optimized, thereby accelerating the biodegradation process. For example, acidic conditions are generally more conducive to the growth of microorganisms and the degradation of plastics.
2. Environmental conditions
Temperature: Higher temperatures can improve the degradation efficiency of plastics. Thermal energy can change the oxidation mechanism of plastics and accelerate the oxidation process of bonds in plastic molecules, thereby increasing the degradation rate.
Humidity: Appropriate humidity is conducive to the growth and activity of microorganisms, thereby promoting biodegradation.
Ultraviolet irradiation: Ultraviolet irradiation also has a great effect on plastic degradation. Ultraviolet rays can destroy the molecular structure of plastics, making them easier to be decomposed by microorganisms.
3. Plastic type and structure
Biodegradable plastics: Select plastic materials designed for biodegradation, such as plastics containing additives or groups that can be decomposed by microorganisms.
Molecular structure: Simple molecular structures are more easily decomposed by microorganisms. For example, aliphatic and cyclic compounds are generally more biodegradable than aromatic compounds.
4. Degradation environment and medium
Composting: In a composting environment, organic matter is abundant and microbial activity is high, which is conducive to the decomposition of biodegradable plastics.
Aqueous culture medium: In an aqueous culture medium, microorganisms can fully contact and decompose plastics, accelerating the degradation process.
5. Degradation technology and methods
Combination of physical and chemical methods: Through a combination of physical and chemical methods, such as mechanical crushing and adding catalysts, the structure of plastics can be effectively changed to make them easier to be decomposed by microorganisms.
Fully biodegradable masterbatch: Use fully biodegradable masterbatch produced by PBAT+starch to change the starch structure through physical and chemical methods to make it easier to biodegrade.
Summary
In practical applications, promoting the degradation of Biodegradable Film & Bag requires comprehensive consideration of multiple factors such as microbial activity, environmental conditions, plastic type and structure, degradation environment and medium, and degradation technology and methods. By optimizing these factors, the biodegradation process can be accelerated and effective treatment and resource recovery of plastic waste can be achieved.