Techno-Economic Feasibility Study of Manufacturing Yarn from Recycled Plastics
ABSTRACT Solid waste management is becoming a problem that demands a timely solution. Those people concerned with municipal solid waste (MSW), are faced with the problem of disposing of significant volumes of potentially hazardous waste materials. There are many sectors which can make use of this MSW. One such sector in Oman is plastic manufacturing that uses polyethylene yarn from which they make net bags for the fruit and vegetable market. The yarn is produced from 75 wt.% high-density polyethylene (HDPE), 12 wt.% polyethylene (PE), and 13 wt.% MB for color. The HDPE comes from Asian countries and constitutes about 35% of the total production cost. Replacement of HDPE with 35 wt.% Recycled Product is estimated to reduce production costs by 10%. Such a reduction in production costs will give these local Plastic manufacturers a competitive edge. On the other hand, the reduction of plastic waste reduces the environmental effects, creates different groups of buyers, receivers, dealers and recycling enterprises, and therefore new jobs.
Full-textDOI: · Available from: Omar Houache, May 08, 2015
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ABSTRACT: Abstract Biotechnology, a new impetus in the last few years, has seen rapid developments in genetic manipulation techniques (genetic engineering) which introduces the possibility of producing organisms in order to optimize the production of established or novel metabolites of commercial importance and of transferring genetic material (genes) from one organism to another. Industrial biotechnology is the application of technical advances in life sciences to develop commercial products or to incorporate in industrial processes. Enzymes are being used in numerous new applications in the food, feed, agriculture, paper, leather, and textile industries which results in enhanced product quality along with significant reductions in cost and environmental pollution. The potential to harness biotechnology and produce new or modified fibers as well as improving the production yields of existing fibers is being studied. Novel fiber-forming biopolymers with biocompatibility and biodegradability are now being manufactured using large-scale fermentation equipment for medical applications. Natural biological fibers from natural raw materials possessing properties of synthetic fibers have entered the textile field. Enzymatic processes have replaced chemical methodologies in textile manufacturing to obtain a sustainable biobased economy. Biological processes play a major role in the removal of contaminants. The elimination of a wide range of waste materials and polluting substances from the environment is an absolute requirement to promote a sustainable development of our society with low environmental impact. Without such advances in science and technology, the move to a more biobased economy would result in rapid depletion of renewable resources and environmental degradation. The natural protein molecules, enzymes, have paved the way for interdisciplinary partnerships with various textile applications for exploring new avenues in the textile industry. Further research is required for the implementation of commercial enzyme-based processes for the biomodification of synthetic and natural fibers.Roadmap to Sustainable Textiles and Clothing, First edited by Dr. Subramaniam Senthilkannan Muthu, 06/2014: chapter Chapter 9 : Application of Biotechnology in the Processing of Textile Fabrics: pages Pg. 277- 325; Springer Science+ Business Media, Singapore 2014., ISBN: 978-981-287-064-3