International Journal of Chemical and Process Engineering Research

Published by: Conscientia Beam
Online ISSN: 2313-0776
Print ISSN: 2313-2558
Quick Submission    Login/Submit/Track

No. 1

Production Processing for the Beneficiation of Waste Polythylene Product

Pages: 13-24
Find References

Finding References


Production Processing for the Beneficiation of Waste Polythylene Product

Search :
Google Scholor
Search :
Microsoft Academic Search
Cite

DOI: 10.18488/journal.65.2017.41.13.24

K. A. Adedeji , A. A. Yussouff , S.A. Adebanjo , W.A. Raji

Export to    BibTeX   |   EndNote   |   RIS

[1]         China Plastics Processing Industry Association (CPPIA), "Chinese plastics industry goes from strength to strength," Plastics, Additives and Compounding, vol. 3, pp. 30-32, 2007.

[2]         Y. Rogaume, F. Jabouille, M. Auzanneau, and J. C. Goudeau, in Proceedingsof the 5th International Conference on Technologies and Combustion for a Clean Environment, Lisbon, Portugal, 1999, pp. 345–351.

[3]         T. Rand, J. Haukohl, and U. Marxen, "Municipal solid waste incineration: Requirements for a successful project, World Bank Technical Paper No. WTP462," 2000.

[4]         F. Pinto, C. Franco, R. N. Andre, M. Miranda, I. Gulyurtlu, and I. Cabrita, "Cogasificationstudy of biomass mixed with plastic wastes," Fuel, vol. 3, pp. s291–297, 2002. View at Google Scholar | View at Publisher

[5]         K. Kato, K. Fukuda, and N. Takamatsu, "Waste plastics recycling technologyusingcoke ovens," Journal of Japan Institute of Energy, vol. 83, pp. 248–251, 2004. View at Google Scholar 

[6]         L. Yassin, P. Lettierim, S. J. R. Simons, and A. Germana, "Energy recovery fromthermal processing of waste: A review," in Engineering Sustainability (Proc ICE) 158(ES2), 2005, pp. 97–103.

[7]         T. Malkow, "Novel and innovative pyrolysis and gasification technologies forenergy efficient and environmentally sound MSW disposal," Waste Management, vol. 24, pp. 53-79, 2004. View at Google Scholar | View at Publisher

[8]         J. Matsunami, S. Yoshida, O. Yokota, M. Nezuka, M. Tsuji, and Y. Tamaura, "Gasification of waste tyre and plastic (PET) by solar thermochemical process forsolar energy utilization," Solar Energy, vol. 65, pp. 21–23, 1999. View at Google Scholar | View at Publisher

[9]         H. Kang and J. M. Schoenung, "Electronic waste recycling: A review of U.S. Infrastructure and technology options," Resources, Conservation and Recycling, vol. 45, pp. 368–400, 2005.View at Google Scholar | View at Publisher

[10]       G. T. Howard, "Biodegredation of polyurethane: A review," International Biodeterioration and Biodegradation, vol. 49, pp. 245-252, 2002. View at Google Scholar 

[11]       M. P. Aznar, M. A. Caballero, J. A. Sancho, and E. Francs, "Plastic waste eliminationby co-gasification with coal and biomass in fluidized bed with air in pilot plant," Fuel Processing Technology, vol. 87, pp. 409–420, 2006.View at Google Scholar | View at Publisher

[12]       S. Karlsson, " Recycled polyolefins. Material properties and means for quality determination," Long Term Properties of Polyolefins, p. 201-230, 2004. View at Google Scholar | View at Publisher

[13]       J. Yang, M. Gupta, X. Roy, and C. Roy, "Study of tire particle mixing in a movingand stirred bed vacuum pyrolysis reactor," Canadian Journal of ChemicalEngineering, vol. 82, pp. 510–519, 2004. View at Google Scholar 

[14]       M. Hasegawa, X. Fukuda, and D. Kunii, "Gasification of solid waste in a fluidizedwith circulating sand," Conservation & Recycling, vol. 3, pp. 143–153, 1974. View at Google Scholar | View at Publisher

[15]       A. Tukker, H. De Groot, L. Simons, and S. Wiegersma, "Chemical recycling of plastic waste: PVC and other resins," European Commission, DG III, Final Report,STB-99-55 Final. Delft, the Netherlands, 1999.

[16]       S. Wu, M. Su, and J. Baeyens, "The fluidized bed pyrolysis of shredded tyres: Theinfluence of carbon particles, humidity, and temperature on thehydrodynamics," Powder Technology, vol. 93, pp. 283–290, 1997. View at Google Scholar | View at Publisher

[17]       C. Borgianni, P. D. Filippis, F. Pochetti, and M. Paolucci, "Gasification process ofwastes containing PVC," Fuel, vol. 14, pp. 1827–1833, 2002. View at Google Scholar | View at Publisher

[18]       J. Aguado, D. P. Serrano, G. S. Miguel, J. M. Escola, and J. M. Rodriguez, "Catalytic activity of zeolitic and mesostructured catalysts in the cracking of pure and waste polyolefins," Journal of Analytical and Applied Pyrolysis, vol. 78, pp. 153–161, 2007. View at Google Scholar | View at Publisher

[19]       N. T. Dintcheva, N. Jilov, and F. P. Mantia, "Recycling of plastics from packaging," Polymer Degration and Stability, vol. 57, pp. 191-201, 1997. View at Google Scholar | View at Publisher

[20]       M. L. Mastellone, "Thermal treatments of plastic wastes by means of fluidizedbed reactors," Ph.D. Thesis, Department of Chemical Engineering, Second University of Naples, Italy, 1999.

[21]       J. F. Mastral, C. Berrueco, and J. Ceamanos, "Theoretical prediction of productdistribution of the pyrolysis of high density polyethylene," Journal of Analyticaland Applied Pyrolysis, vol. 80, pp. 427–438, 2007. View at Google Scholar | View at Publisher

[22]       EA, "UK environment agency," Technical Report No. 223-4598, Wastefacts, 2008.

[23]       E. Weigand, J. Wagner, and G. Waltenberger, "Energy recovery from polyurethanes in industrial power plants," Abfall Journal, vol. 3, pp. 40–45, 1996. View at Google Scholar 

[24]       A. A. Basfar and K. M. Idriss Ali, "Natural weathering test for films of various formulations of low density polyethylene (LDPE) and linear low densitypolyethylene (LLDPE)," Polymer Degradation and Stability, vol. 91, pp. 437–443, 2006.View at Google Scholar | View at Publisher

[25]       S. M. Al-Salem, "Influence of natural and accelerated weathering on various formulations of linear low density polyethylene (LLDPE) films," Materials and Design, vol. 30, pp. 1729–1736, 2009b.

[26]       K. M. Zia, H. N. Bhatti, and I. A. Bhatti, "Methods for polyurethane and polyurethanecomposites, recycling and recovery: A review," Reactive & Functional Polymers, vol. 67, pp. 675–692, 2007. View at Google Scholar | View at Publisher

[27]       J. Ahrenfeldt, "Characterization of biomass producer gas as fuel for stationary gas engines in combined heat and power production," Ph.D. Thesis, Department of Chemical Engineering, Technical University of Denmark, Lyngby, Denemark, 2007.

K. A. Adedeji , A. A. Yussouff , S.A. Adebanjo , W.A. Raji (2017). Production Processing for the Beneficiation of Waste Polythylene Product. International Journal of Chemical and Process Engineering Research, 4(1): 13-24. DOI: 10.18488/journal.65.2017.41.13.24
The large amount of post-consumer polyethylene terephthalate (PET) bottles/containers and post-consumer sachet water nylon currently generated in Lagos State makes imperative the search for alternative procedures for treating, recycling or reuse of these waste materials. This is because they are not biodegradable and constitute environmental and health threat to the survival of man and other living things. The sustainable approach to municipal solid waste management in Nigeria is being considered. This research work aimed at recycling of post-consumer PET bottles/containers and post-consumer sachet water nylon to produce composite materials for engineering applications and wastes storage bag (wastes bin) respectively. Plastic waste, polyethylene terephthalate (PET) bottles/containers and sachet water nylon coming from the dumpsites in Lagos State in Nigeria were collected, separated, washed, recycled, extruded and characterized. The products obtained were subjected to tests to evaluate their mechanical properties using Introns Tester Model 1122. The results showed that the PET/LDPE blend mechanical properties depend on the processing conditions and apparatus. High processing temperature and high residence times strongly enhance the degradation processes and reduce the mechanical properties, in particular the elongation at break. However, by introducing additives, such as antioxidants, inert fillers and impact modifiers, these mechanical properties are improved and approached those products made from of virgin polyethylene terephthalate. For the recycled sachet water nylon, the results also showed that there was mechanical properties deficiency in the use of recycled resins and that this deficiency could be minimized through adequate blending with virgin resins. In general, provided that optimal reprocessing conditions with suitable additives, the mechanical properties of the recycled resins are near to those of virgin resins.

Contribution/ Originality
This study could be able to address the burden of disposed some of these plastic bottle /nylon litter and block the drainages. Also help in area of employment because many idle hands can engage in picking the waste for recycle.

Comparative Analysis of Osmotic Dehydration of Fruits and Vegetables: Using Mango (Mangifera Indica L.) and Carrot (Daucus Carota L) in a Semi-Continuous Process

Pages: 1-12
Find References

Finding References


Comparative Analysis of Osmotic Dehydration of Fruits and Vegetables: Using Mango (Mangifera Indica L.) and Carrot (Daucus Carota L) in a Semi-Continuous Process

Search :
Google Scholor
Search :
Microsoft Academic Search
Cite

DOI: 10.18488/journal.65.2017.41.1.12

Duduyemi Oladejo , Ngoddy P.O. , Ade-omowaye B.I.O , Abioye A.O.

Export to    BibTeX   |   EndNote   |   RIS


Duduyemi Oladejo , Ngoddy P.O. , Ade-omowaye B.I.O , Abioye A.O. (2017). Comparative Analysis of Osmotic Dehydration of Fruits and Vegetables: Using Mango (Mangifera Indica L.) and Carrot (Daucus Carota L) in a Semi-Continuous Process. International Journal of Chemical and Process Engineering Research, 4(1): 1-12. DOI: 10.18488/journal.65.2017.41.1.12
Fruits and vegetables are important part of human diet but are prone to rapid deterioration. Osmotic dehydration (OD) is a method capable of retaining nutrient and organoleptic qualities of preserved food and aid drying at reduced energy requirement for minimally processed food. The study is aimed at analysing and comparing OD of fruits and vegetables using mango (Mangifera indica L.) and carrot (Daucus carota L) as case samples. The effects of sucrose concentration, residence time and temperature of OD media were investigated for water loss (WL) and solute gain (SG) regression. Optimal transport models established for maximum WL and minimum SG at 40-60 oBx, 30-50 oC and 0-180min using Modified Distance Design of the response surface methodology Design Expert 6.0 achieved 46.87% WL and 7.33% SG for mango and 36% WL and 5% SG for carrot. At the optimized conditions of in a semi-continuous process it was observed that high SC did not favour WL in mango while in carrot, increased SC resulted in a consistent increase in WL. The analysis of variance revealed R2 of 72.95% for carrot and 98.44% for mango at (P<0.05) thus showing the effects of the plant morphology on OD process effectiveness in determining the order of processing fruits and vegetables in a semi-continuous process.

Contribution/ Originality