What is a biodegradable bag

What is a biodegradable bag

Degradable bags refer to plastic bags that can be decomposed into carbon dioxide, water, and inorganic salts by microorganisms under specific conditions. This type of plastic bag is mainly made of biobased materials such as polylactic acid (PLA), adipic acid/polybutylene terephthalate (PBAT), and polybutylene succinate (PBS). These materials can be degraded by microorganisms in nature and eventually become carbon dioxide, water, and inorganic salts, without causing persistent pollution to the environment.

Degradable bags can be divided into the following categories:

Soil degradable plastic bags: degrade in soil environment.

Compostable biodegradable plastic bags: Under composting conditions, degradation usually requires a temperature of 60-70 ℃, and can be completely decomposed into water and carbon dioxide within 3-6 months.

Degradable plastic bags in freshwater environments: Degradable in freshwater environments.

Degradable plastic bags in seawater environment: Degradable in seawater environment.

Anaerobic digestion of sludge and degradation of plastic bags: Degradation under anaerobic digestion conditions of sludge.

Degradation of plastic bags by high solid state anaerobic digestion: Degradation under high solid state anaerobic digestion conditions