The garbage bags of the Beijing pilot composting will degrade in 27 days. What kind of material is this?

The Institute of Biodegradable Materials reported that recently, Beijing has implemented a six-month pilot application of compostable and degradable plastic garbage bags in four districts of Dongcheng, Xicheng, Chaoyang and Haidian, which has attracted industry attention
.

1.
Beijing pilot, Guoneng produces PGA garbage bags, which are completely degraded in 27 days and have a shelf life of 6 months

So which company produces this compostable and degradable plastic garbage bag?

According to the official website of Pujing Chemical, on April 25, the pilot application of polyglycolic acid (PGA) biodegradable garbage bag community jointly carried out by the National Energy Group and the Beijing Municipal Management Committee was carried out in [Xicheng District Hualong Meiyu Community] Start first
.
Inner Mongolia Pujing Polymer Material Technology Co.
, Ltd.
, a wholly-owned subsidiary of Shanghai Pujing Chemical Technology Co.
, Ltd.
, as the cooperative unit of this pilot work, is responsible for the research and development and production of special materials for PGA biodegradable garbage bags
.
(Note: Pujing provides PGA polymerization technology for Guoneng Group)

PGA material not only has excellent mechanical strength and barrier properties, but also can be degraded in various natural environments, including degradation in the marine environment, and is an excellent environmental protection material
.
The fully biodegradable garbage bag made of PGA as the main raw material has excellent tensile strength and puncture resistance, and can be a good substitute for traditional PE plastic garbage bags to meet the needs of daily household garbage collection
.

After verification by the composting test of Beijing Guozhong Biotechnology Co.
, Ltd.
Asuwei Domestic Waste Comprehensive Treatment Plant, the results show that the PGA garbage bag has good biodegradation performance, which matches the one-time aerobic fermentation treatment cycle of kitchen waste and garden waste, and can achieve synchronous degradation.

.

The application of PGA garbage bags can not only solve the current problem of kitchen waste classification requiring broken bags, reduce the impact of the smell of kitchen waste on the environment, but also improve the enthusiasm of residents to participate in garbage classification
.
This pilot application research involves 5 communities in 4 urban areas in Beijing, with a total of more than 10,000 residents.
It is planned to carry out a 6-month pilot application.
Through feedback, the products will be continuously improved and upgraded, and will make outstanding contributions to the waste classification industry in Beijing.
, while providing application demonstrations for PGA industrial device products
.

△Fully biodegradable plastic bags
.
(Photographed by CCTV reporter Li Hui)

In another pilot project [Tianshui Xiyuan Community, Liulitun, Chaoyang District], residents of Tianshui Xiyuan Community can receive 30 degradable garbage bags for free every month.
This project will last for half a year and will be collected in the community at the end of each month
.

According to reports, the degradable garbage bag PGA (polyglycolic acid) issued by the community was developed by the National Energy Group.
It can be completely degraded in 27 days by being degraded by microorganisms in the environment into organic matter, carbon dioxide and water
.
Why use PGA in Tianshui Xiyuan Community? Because Tianshui Xiyuan Community, as a demonstration community of Liulitun garbage classification, has been practicing the "Three Concentrations of Waste Classification", the residents have a high awareness of classification.
As one of the five pilot communities in Beijing that use degradable garbage bags, it is Chaoyang District.
first
.
Another resident asked, this degradable garbage bag degrades in 27 days.
The staff replied: "The shelf life of this bag is 6 months, and we can issue it to you every month for normal use
.
"

2.
Yantai pilot project: Wanhua + Jialian produces PBAT garbage bags, which degrade in 31 days

In addition to Beijing's pilot degradable garbage bag composting, Shandong Yantai is also piloting
.

In February 2022, in order to support the smooth development of urban waste sorting activities, Wanhua Chemical and Ningbo Jialian Technology customized 10,000 rolls of PBAT degradable garbage bags, and distributed them to citizens participating in garbage sorting activities free of charge
.
This fully biodegradable garbage bag can be completely degraded into carbon dioxide and water together with kitchen waste under composting conditions, which helps solve the problem of "white pollution" of traditional garbage bags and is environmentally friendly
.

The degradable garbage bag can be completely degraded by microorganisms under proper composting conditions, and the degradation products are water and carbon dioxide, which is environmentally friendly
.
After the packaged kitchen waste is transported to the kitchen waste treatment plant, after about 21 days of dynamic aerobic fermentation and about 10 days of post-curing, it is finally turned into fertilizer for resource utilization, reducing the number of broken bags, The workload of delivery and processing
.
Review of the previous article: Wanhua Chemical and Jialian Technology customized 10,000 rolls of PBAT garbage bags

Fully biodegradable plastic bags provided by Wanhua Chemical