EXPERIMENTAL STUDY OF THE MECHANICAL EFFECT OF BIO-LOADS ON PVC RECYCLING

With the increase in plastic waste, recycling becomes an urgent necessity to reduce and revalue it. PVC is one of the most widely used types of plastic in the world, and indeed it is among the most recycled. The effect of recycling on PVC or any other type of material is to reduce these characteristics, which also depends on the method by which it is recycled. Finding a way to increase the recyclability number of PVC by improving the mechanical characteristics will be an addition at the level of scientific research as well as at the industrial level. The addition of a bio-loading in the form of cow horns, coconut or chicken feathers on the rigid and flexible PVC with an experimental study of the results obtained allow to deduce the most adequate bio-loaded material to improve the mechanical characteristics after recycling. The experiments carried out on rigid and flexible PVC demonstrated the evolutions brought to PVC with and without loading after recycling The results obtained showed an improvement in the mechanical properties of rigid and flexible PVC with a natural bio-loading with the three fibers of coconut, cow horns and chicken feathers which enhance the environment, are very light and can be collected. directly from the waste with a large amount.

Towards Higher Quality of Recycled Plastics: Limitations from the Material’s Perspective

The increasing consumption of plastics and plastic products results in correspondingly substantial volumes of waste, which poses considerable environmental burdens. With the ongoing environmental actions, the application of circular economy on this waste stream is becoming inevitable. In this paper, the topics of plastics recycling, circular economy on plastics, and challenges to plastic waste recycling are critically reviewed. In the first part of this paper, the development of research on plastic recycling was viewed from 1950 until 2020 using the scientific database Web of Science, and 682 related studies were found and used to assess the changing research priorities along that timeline. The following sections discuss the potentials and requirements to enhance the quality of the produced recycled plastic, in connection with the factors that currently limit it. In conclusion, the quality of recycled plastic is generally determined by the homogeneity of the recovered plastic feed. There are various strategies which could be implemented to overcome the hindrances identified in the paper and to improve the quality of the recycled plastic, such as working on enhanced product designs for minimised waste heterogeneity and controlling the materials’ degree of contamination by applying advanced sorting.

Innovative approaches to plastic waste recycling using the example of the textile industry

Nowadays, pollution problem is very acute all over the world. Significant reduction of negative impact of pollutants on humans and the environment, as well as the improvement of a number of environmental and economic indicators can be ensured by the achievement by the countries of a proper level of development in the waste recycling issue. Within the framework of this article, the problems of plastic waste processing and the introduction of innovative solutions for their disposal and recycling are considered. The research aims to study the innovative ways of plastic waste recycling and assess the feasibility of their use in the textile industry. In the course of the study, the experience of introducing innovative environmentally-oriented technologies for plastic waste recycling was studied, the main approaches and strategies for introducing environmental innovations, as well as priority areas of environmentally oriented innovations in production, were considered. The main result of the study includes reasonable proposals for the implementation of plastic waste recycling technology in the production of textiles.

Deep learning redesign of PETase for practical PET degrading applications

Plastic waste poses an ecological challenge1. While current plastic waste management largely relies on unsustainable, energy-intensive, or even hazardous physicochemical and mechanical processes, enzymatic degradation offers a green and sustainable route for plastic waste recycling2. Poly(ethylene terephthalate) (PET) has been extensively used in packaging and for the manufacture of fabrics and single-used containers, accounting for 12% of global solid waste3. The practical application of PET hydrolases has been hampered by their lack of robustness and the requirement for high processing temperatures. Here, we use a structure-based, deep learning algorithm to engineer an extremely robust and highly active PET hydrolase. Our best resulting mutant (FAST-PETase: Functional, Active, Stable, and Tolerant PETase) exhibits superior PET-hydrolytic activity relative to both wild-type and engineered alternatives, (including a leaf-branch compost cutinase and its mutant4) and possesses enhanced thermostability and pH tolerance. We demonstrate that whole, untreated, post-consumer PET from 51 different plastic products can all be completely degraded by FAST-PETase within one week, and in as little as 24 hours at 50 °C. Finally, we demonstrate two paths for closed-loop PET recycling and valorization. First, we re-synthesize virgin PET from the monomers recovered after enzymatic depolymerization. Second, we enable in situ microbially-enabled valorization using a Pseudomonas strain together with FAST-PETase to degrade PET and utilize the evolved monomers as a carbon source for growth and polyhydroxyalkanoate production. Collectively, our results demonstrate the substantial improvements enabled by deep learning and a viable route for enzymatic plastic recycling at the industrial scale.

Pemulung Cerdas Muara Fajar

PEDAS AJAR merupakan singkatan dari Pemulung Cerdas Muara Fajar yang menjadi mitra pada program yang dilaksanakan. Kegiatan ini menjadi bentuk perhatian pemuda selaku mahasiswa terhadap perekonomian masyarakat kecil yang notabennya adalah pemulung, dalam agenda yang direncanakan berlangsung selama tiga bulan, tim PEDAS AJAR bermaksud untuk memberikan pelatihan atau mentoring kepada kelompok pemulung yang berdasarkan yang dikategorikan sebagai masyarakat dengan pendapatan minim, dengan demikian TIM PEDAS AJAR memberikan pendampingan dan pelatihan dengan bantuan mentor untuk mengelola dan mengolah sampah plastik menjadi barang yang bernilai jual tinggi, sehingga pola perekonomian masyarakat berubah yang awalnya hanya mengumpulkan kemudian dijual, namun menjadi mengumpulkan, menggolah dan menjual sehingga hasil produk olahan dapat memiliki nilai jual yang lebih tinggi. Pada kegiatan nantinya akan ada peresmian rumah produksi sebagai luaran dari kegiatan yang dapat dimanfaatkan sebagai tempat pengelolan dari daur ulang sampah plastik oleh mitra. Dalam pelaksanaannya target yang ditetapakan tidak hanya pemulung dalam ketegori remaja hingga dewasa namun juga mentargetkan anak-anak pemulung untuk diberikan motivasi agar tetap bersekolah dan melanjutkan pendidikan hingga menggapai impian yang diinginkan, dimana sesi motivasi ini juga diselingi dengan games serta sharing pengalaman yang didampingi oleh tim, program ini disebut Program Kakak Asuh. Selain program Mentoring Pemulung dan program Kakak Asuh, program lain yang dilaksanakan adalah program sosialisasi dan pemeriksaan kesehatan hal ini dianggap penting untuk memberikan edukasi kepada masyarakat yang kesehariannya berbaur dengan sampah yang ada di TPA ( Tempat Pembuangan Akhir ) agar tetap memelihara kebersihan lingkungan sekitar untuk terciptanya masyarakat sehat yang produktif. Program- program yang diusung dalam PEDAS AJAR ini juga sebagai bentuk dari pengimplementasian mewujudkan SDGs / TPB atau Tujuan Pembangunan Berkelanjutan.Kata Kunci: Mentoring, Kakak Asuh, Sosialisasi dan Periksaan kesehatan, meningkatkan pendapatan , mengapai impian dan lingkungan sehat, SDGs/TPB.Intelligent Scavengers of Estuary of Dawn ABSTRACTPEDAS AJAR stands for Smart Pemulung Muara Fajar who is a partner in the program being implemented. This activity is a form of attention from youth as students to the economy of small communities who in fact are scavengers, in an agenda that is planned to last for three months, the PEDAS AJAR team intends to provide training or mentoring to scavenger groups based on those categorized as people with minimal income, thus The PEDAS AJAR TEAM provides assistance and training with the help of mentors to manage and process plastic waste into items of high selling value, so that the community's economic pattern changes which initially only collects and then sells, but becomes collecting, processing and selling so that the processed products can have a selling value. higher. In the activity, there will be an inauguration of a production house as an output of the activity that can be used as a place for managing plastic waste recycling by partners. In its implementation, the targets set are not only scavengers in the category of teenagers to adults but also targeting scavengers' children to be given motivation to stay in school and continue their education to achieve the desired dreams, where this motivational session is also interspersed with games and sharing experiences accompanied by the team. , this program is called Foster Sister Program. In addition to the Scavenger Mentoring program and the Foster Brothers program, other programs implemented are the socialization program and health checks. These are considered important to provide education to the community who mix with the waste in the TPA (Final Disposal Site) in order to maintain the cleanliness of the surrounding environment for productive healthy society. The programs carried out in PEDAS AJAR are also a form of implementing the SDGs/TPB or Sustainable Development Goals.Keywords: Mentoring, Foster Brothers, Socialization and Health Checkups, increasing income, achieving dreams and a healthy environment, SDGs/TPB.

Efficient Plastic Recycling and Remolding Circular Economy Using the Technology of Trust–Blockchain

Global plastic waste is increasing rapidly. In general, densely populated regions generate tons of plastic waste daily, which is sometimes disposed of on land or diverged to sea. Most of the plastics created in the form of waste have complex degradation behavior and are non-biodegradable by nature. These remain intact in the environment for a long time span and potentially originate complications within terrestrial and marine life ecosystems. The strategic management of plastic waste and recycling can preserve environmental species and associated costs. The key contribution in this work focuses on ongoing efforts to utilize plastic waste by introducing blockchain during plastic waste recycling. It is proposed that the efficiency of plastic recycling can be improved enormously by using the blockchain phenomenon. Automation for the segregation and collection of plastic waste can effectively establish a globally recognizable tool using blockchain-based applications. Collection and sorting of plastic recycling are feasible by keeping track of plastic with unique codes or digital badges throughout the supply chain. This approach can support a collaborative digital consortium for efficient plastic waste management, which can bring together multiple stakeholders, plastic manufacturers, government entities, retailers, suppliers, waste collectors, and recyclers.