The latest research on Israel: No need to sort, what is PVC Sheet used for bacteria can degrade PET

Date:2022-8-08 Author:Sam

Researchers at the University of Gurian University are studying the biodegradation of bacteria -a simpler and more environmentally friendly method to decompose and recycle PET (polyethylene dihydronate). PET is the most common plastic in food beverage packaging and textile products. Nick-Fewings-UNSPLASH-1168X657.jpg According to reports, as early as November last year, BGN T technology, a subsidiary of Ben Gurian University, signed a research cooperation agreement with Ecoibéria, Portugal to study and prove PET bacterial biodegradation of biodegradable biodegradation. Effectiveness. The research results of the project may simplify the current tedious plastic recycling process, that is, collect plastic bottles from the recycling box, then separate according to the type and color, and then grind it into small pieces to melt into raw materials and fiber thin slices. The 20 -year research book \u0026#8226; Professor Ariel Kushmaro from the Department of Biotechnology Engineering of Gurian University said: \”Our research involves the decomposition of various plastic polymers. The chief researcher of the project is Professor Alex Sivan. Starting to work in this field, the research on plastic biological decomposition in the world was still in its infancy. Professor Kushmaro said: \”From the demand for energy and carbon sources of energy and carbon source, we realized that biological degradation originated from microorganisms and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy and energy of the microorganism. The needs of carbon source. \”For this reason, they will decompose organic matter -carbon chains, such as sugar and even protein. We believe that because plastic, polyethylene and PET are also composed of carbon chains, we should prepare a\” rich culture \” – – Over the years, the soil contaminated by plastics or PET contained in the original bacterial group. \”Obviously is that polyethylene is considered to be unrealized substances due to its highly stable carbon-carbon bond. Therefore, its bacterial decomposition must be manually promoted in the laboratory. \”In addition to bacteria, we also added substances we want to decompose and let them work for a few weeks. After several attempts, we found a microorganism that used polyethylene as carbon and energy during the growth process. Kushma Luo explained: \”These bacteria can handle these polymers. \”We know that in order to allow the carbon bonds in the bacteria biodegradable plastic polymer, it must grow in a carbon -free environment, so that the bacteria have no choice, and only the only available carbon in plastic can survive. \”\”. \”Of course, it is not enough to provide carbon chains only for bacteria. We must give them various additives, such as the source of nitrogen and phosphorus, making them easier to break down.\” Kushmaro, Sivan, and their research team finally discovered several types that could The bacteria of polyethylene micro plastic were successfully decomposed in soil samples. Kushmaro revealed: \”We found that within 30 days, the weight of the soil was reduced by 10%to 20%through the decomposition of bacteria, and the bacteria released carbon dioxide during breathing.\” Ecoibéria is a familyCompanies that specialize in PET bottle. The company recognizes the potential of Kushmaro and Sivan and has contacted BGN technology. This cooperation will include laboratory tests in Israel to study how bacteria break down PET, and whether intermediate by -products can be separated and used as raw materials for the plastic industry. If so, there will be a new round of investment pilot. If this experiment is ultimately successful, then this technology requires at least two to three years of additional research to be applied to the industrial environment. More efficient and higher quality. \”Today, if you want to effectively recycle, you must separate the water bottle from the bottle, shampoo container, etc.\” Dr. NOAM VAN DER HAL of the Microplastics of the University of Haifa, \”The need to separate all types of plastics makes this process so complicated.\” \”In fact, it is very difficult to recover plastic products to the original quality and performance level. Now, we do not recycle the bottle into a bottle, but we can recover it into the floor, bench or architectural material of the playground. It is not a cycle in a fully sense. \”Kushmaro believes that the product obtained by biodefraction is the original raw material. \”Let’s promote this project with ecoibéria, and decompose PET tablets into raw materials so that the product can be sold in the form of raw materials. This idea is that microorganisms or enzymes will decompose molecular polymer chains in order to extract clean raw materials from the mixture. And copy PET like traditional industrial practices, \”Kushmaro said. So, is this new process feasible in economics? Kushmaro believes that biodegradation is much cheaper than heat recovery or chemical recycling, making it competitive advantage in the raw material market. \”They are looking for an overall solution that can improve recycling. This is also related to the environmental trend of the European market. The European market encourages investment in the\” green \”project that reduces environmental pollution. Our research is part of this popular trend.\” Kushmaro said.