The composition of paper cups creates a challenge for the recycling industry,as the paperboard–plastic film composite is hard to separate.Therefore,paper cups are sent to landfills or waste incinerators.This study ex...The composition of paper cups creates a challenge for the recycling industry,as the paperboard–plastic film composite is hard to separate.Therefore,paper cups are sent to landfills or waste incinerators.This study explores the combined use of red worms(Eisenia fetida)and Greater wax moth(Galleria mellonella)in the biodegradation of paper cups.The study investigates the conditions and combinations that promote using Eisenia fetida and Galleria mellonella for degrading paper cups.The study considered the influence of environmental temperature,the presence of food waste,varying the number of Eisenia fetida worms,and the presence of a Galleria mellonella growth-slowing agent on the degradation process.To achieve the study objectives,the study followed a quantitative approach.The study monitored the degradation of paper cup cuts that were placed in jars containing different combinations of Eisenia fetida worms,Galleria mellonella larvae,food waste,bedding material,and Galleria mellonella growth-slowing agents.The study found that the best operating temperature is 30oC.The study found that using food waste improves the performance of Eisenia fetida worms and Galleria mellonella larvae significantly.The study found that adding a Galleria mellonella growth-slowing agent slightly enhances the degradation of the paper cup.Finally,a numerical model was obtained to simulate the paper cup degradation efficiency.展开更多
Objective:Paper cups are mostly used for consuming beverages.These cups have an interior laminated hydrophobic thin film coated with polyethene and copolymers.During association with hot water or beverages ions like n...Objective:Paper cups are mostly used for consuming beverages.These cups have an interior laminated hydrophobic thin film coated with polyethene and copolymers.During association with hot water or beverages ions like nitrite,chloride,fluoride and microplastic particles were released into water.Deposition of these particles has serious health effects in human.So,the objectives of the present study are to evaluate the degradation of the microplastic particles as a result of exposure to hot water.Methods:Different characterization techniques like UV-Vis spectroscopy,scanning electron microscopy,Gas chromatography-mass spectroscopy,Fourier transform infrared spectroscopy and Inductively coupled plasma optical emission spectroscopy are used to identify microplastic particles.Information about microplastic content in such samples is limited,yet most of the analytical methods used are very time-consuming.Results:Sample preparation and detection require sophisticated analytical tools and eventually require high user knowledge.This research shown that microplastics can leach from the lining of disposable cups into the beverage within minutes of contact with hot liquids.GCMS report shows that Phthalates compound and chemical exposure affect the endocrine system which interferes with hormone function.When exposed to hot water,the plastic coatings start to break down and the compounds like Diethyl phthalate,Di-2-ethylhexyl-adipate,Butylated hydroxytoluene,Benzotriazole,Styrene,Vinyl chloride were found in the hot water.Some scientists have shown that certain bacterial enzymes can hydrolyze and degrade the microplastic compound.Conclusions:This research discusses paper cup microplastic compounds and the binding affinity of detoxification enzyme interaction have been discussed in silico.However,this research recommends to opting for reusable cups made of glass,steel,and safer materials like soil-made cup.展开更多
On June 28, 2006, during the 5th China International Diecasting Congress, a meeting was held by the Paper Evaluation and Competition Commission under Foundry Institution of Chinese Mechanical Engineering Society to ev...On June 28, 2006, during the 5th China International Diecasting Congress, a meeting was held by the Paper Evaluation and Competition Commission under Foundry Institution of Chinese Mechanical Engineering Society to evaluate excellent papers in die casting for these papers published in Foundry, Special Foundry & Nonferrous Alloys, Foundry Technology journals between Jan. and Dec. 2005 and Proceedings of the 5th China International Diecasting Congress, and recommended by their editorial commissions. After collecting recommendations and opinions from specialist nation-wide, a total of 13 papers were qualified for the final round. After evaluation and voting by the 21 participating member of the commission, one Gold Award and three Silver Awards were finalized and entitled the “Wan Feng” Cup Excellent Paper in Diecasting . The awarded papers are listed as follows:展开更多
In order to encourage the foundry science and technology staff of our country to actively participate in the foundry academic activities, and in order to promote the development of China foundry technology and the imp...In order to encourage the foundry science and technology staff of our country to actively participate in the foundry academic activities, and in order to promote the development of China foundry technology and the improvement of China foundry academic levels, the second stage work (final judgement) of the 6th FOSECO Cup Excellent Foundry Papers organized by Foundry Institution of Chinese Mechanical Engineering Society (FICMES) was carried out in Chengdu, Sichuan Province on May 17-20, 2004. Two gold award papers and 10 silver award papers were awarded, and the other 34 papers recommended into the final judgement were nominated as excellent papers.展开更多
The final evaluation of the 9th FOSECO Cup for Excellent Foundry Papers (2006) organized by Foundry Institution of Chinese Mechanical Engineering Society (FICMES) was carried out on April 14-17,2007 in Guilin,Guangxi ...The final evaluation of the 9th FOSECO Cup for Excellent Foundry Papers (2006) organized by Foundry Institution of Chinese Mechanical Engineering Society (FICMES) was carried out on April 14-17,2007 in Guilin,Guangxi Zhuang Autonomous Region.展开更多
基金funded by the Deanship of Scientific Research at the University of Jordan.
文摘The composition of paper cups creates a challenge for the recycling industry,as the paperboard–plastic film composite is hard to separate.Therefore,paper cups are sent to landfills or waste incinerators.This study explores the combined use of red worms(Eisenia fetida)and Greater wax moth(Galleria mellonella)in the biodegradation of paper cups.The study investigates the conditions and combinations that promote using Eisenia fetida and Galleria mellonella for degrading paper cups.The study considered the influence of environmental temperature,the presence of food waste,varying the number of Eisenia fetida worms,and the presence of a Galleria mellonella growth-slowing agent on the degradation process.To achieve the study objectives,the study followed a quantitative approach.The study monitored the degradation of paper cup cuts that were placed in jars containing different combinations of Eisenia fetida worms,Galleria mellonella larvae,food waste,bedding material,and Galleria mellonella growth-slowing agents.The study found that the best operating temperature is 30oC.The study found that using food waste improves the performance of Eisenia fetida worms and Galleria mellonella larvae significantly.The study found that adding a Galleria mellonella growth-slowing agent slightly enhances the degradation of the paper cup.Finally,a numerical model was obtained to simulate the paper cup degradation efficiency.
文摘Objective:Paper cups are mostly used for consuming beverages.These cups have an interior laminated hydrophobic thin film coated with polyethene and copolymers.During association with hot water or beverages ions like nitrite,chloride,fluoride and microplastic particles were released into water.Deposition of these particles has serious health effects in human.So,the objectives of the present study are to evaluate the degradation of the microplastic particles as a result of exposure to hot water.Methods:Different characterization techniques like UV-Vis spectroscopy,scanning electron microscopy,Gas chromatography-mass spectroscopy,Fourier transform infrared spectroscopy and Inductively coupled plasma optical emission spectroscopy are used to identify microplastic particles.Information about microplastic content in such samples is limited,yet most of the analytical methods used are very time-consuming.Results:Sample preparation and detection require sophisticated analytical tools and eventually require high user knowledge.This research shown that microplastics can leach from the lining of disposable cups into the beverage within minutes of contact with hot liquids.GCMS report shows that Phthalates compound and chemical exposure affect the endocrine system which interferes with hormone function.When exposed to hot water,the plastic coatings start to break down and the compounds like Diethyl phthalate,Di-2-ethylhexyl-adipate,Butylated hydroxytoluene,Benzotriazole,Styrene,Vinyl chloride were found in the hot water.Some scientists have shown that certain bacterial enzymes can hydrolyze and degrade the microplastic compound.Conclusions:This research discusses paper cup microplastic compounds and the binding affinity of detoxification enzyme interaction have been discussed in silico.However,this research recommends to opting for reusable cups made of glass,steel,and safer materials like soil-made cup.
文摘On June 28, 2006, during the 5th China International Diecasting Congress, a meeting was held by the Paper Evaluation and Competition Commission under Foundry Institution of Chinese Mechanical Engineering Society to evaluate excellent papers in die casting for these papers published in Foundry, Special Foundry & Nonferrous Alloys, Foundry Technology journals between Jan. and Dec. 2005 and Proceedings of the 5th China International Diecasting Congress, and recommended by their editorial commissions. After collecting recommendations and opinions from specialist nation-wide, a total of 13 papers were qualified for the final round. After evaluation and voting by the 21 participating member of the commission, one Gold Award and three Silver Awards were finalized and entitled the “Wan Feng” Cup Excellent Paper in Diecasting . The awarded papers are listed as follows:
文摘In order to encourage the foundry science and technology staff of our country to actively participate in the foundry academic activities, and in order to promote the development of China foundry technology and the improvement of China foundry academic levels, the second stage work (final judgement) of the 6th FOSECO Cup Excellent Foundry Papers organized by Foundry Institution of Chinese Mechanical Engineering Society (FICMES) was carried out in Chengdu, Sichuan Province on May 17-20, 2004. Two gold award papers and 10 silver award papers were awarded, and the other 34 papers recommended into the final judgement were nominated as excellent papers.
文摘The final evaluation of the 9th FOSECO Cup for Excellent Foundry Papers (2006) organized by Foundry Institution of Chinese Mechanical Engineering Society (FICMES) was carried out on April 14-17,2007 in Guilin,Guangxi Zhuang Autonomous Region.
