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Effect of particle size, die rotary speed and amount of urea on physical properties of the produced pellet

  • H. Amiri
  • M. H. KianmehrEmail author
  • A. Arabhosseini
Original Paper
  • 85 Downloads

Abstract

Provided pellet by mixing of urea and compost is a kind of nitrogenous fertilizer with gradual release that reduces leaching losses and increases gradual absorption of nitrogen during the growing long season. In this study, the characteristics of the produced pellet such as durability, strength and moisture absorption were examined at two density levels (low and high), three ratio levels of compost and urea fertilizer (1:1, 1:2 and 1:4), particle size of compost at two levels (≤ 0.3 and between 0.3 and 0.6 mm) and the rotational speed of die roller shaft at four levels (100, 150, 200 and 250 rpm). The durability and strength increased by increasing the rotational speed of die roller shaft from 100 to 150 rpm, while by increasing from 200 to 250 rpm the durability decreased. The results of mean comparison showed that the durability of pellets produced from particles less than 0.3 mm increased with increasing the speed from 100 to 150 rpm and decreased by increasing the speed from 200 to 250 rpm while increasing the effect of speed on the durability was not significant for the pellets produced from particle size between 0.3 and 0.6 mm. The results showed that the amount of force, fracture energy and toughness of pellets decreased by increasing the particle size. The durability increased by increasing the density and decreasing the ratio of urea, and the maximum durability was found at the ratio of 1:4 and the high density.

Keywords

Compost Durability Fertilizer Flat-die roller Gradual release Strength 

Notes

Acknowledgements

The authors wish to thank you assisted in conducting this work.

Supplementary material

13762_2017_1627_MOESM1_ESM.docx (988 kb)
Supplementary material 1 (DOCX 987 kb)

References

  1. Abdulmumini MM, Bradley MSA, Zigan S (2015) A comparative study of pelletizing process parameters on wood pellet durability. In: Proceeding of the 8th international conference for conveying and handling of particulate solids, Tel-Aviv, IsraelGoogle Scholar
  2. Adapa PK, Schoenau GJ, Tabil LG, Sokhansanj S, Crerar BJ (2003) Pelleting of fractionated alfalfa products. ASABE paper no. 036069. ASABE, St. Joseph, MIGoogle Scholar
  3. Alemi H (2009) Determination of mechanical properties of pellets produced from manure and chemical fertilizers. PhD Thesis, Islamic Azad University, IranGoogle Scholar
  4. Amiri H (2012) Designing and construction of the processing device and shear vane to determine the release stress of biomass. MSc thesis, College of Aburaihan, University of Tehran, IranGoogle Scholar
  5. Anonymous (2015) United Nations, Department of Economic and Social Affairs, Population Division. World population prospects: the 2015 revision, key findings and advance tables. Working paper no. ESA/P/WP.241Google Scholar
  6. ASAE Standards (1998) S269.4 Cubes. Pellets and crumbles-definitions and methods for determining density, durability and moisture content. ASAE DEC96. Standard S358.2 Moisture Measurement-forages. ASAE, St. Joseph, MIGoogle Scholar
  7. Bröckel U, Hahn C (2004) Product design of solid fertilizers. Chem Eng Res Des 82:1453–1457. doi: https://doi.org/10.1205/cerd.82.11.1453.52039 CrossRefGoogle Scholar
  8. Fan XH, Li YC (2010) Nitrogen release from slow-release fertilizers as affected by soil type and temperature. Soil Sci Soc Am J 74:1635–1641CrossRefGoogle Scholar
  9. Fasina OO (2008) Physical properties of peanut hull pellets. Bioresour Technol 99(5):1259–1266CrossRefGoogle Scholar
  10. Hashim MM, Yusop MK, Othman R, Wahid SA (2015) ‘Characterization of nitrogen uptake pattern in malaysian rice MR219 at different growth stages using 15N isotope. Rice Sci 22(5):250–254. ISSN 1672-6308. doi: https://doi.org/10.1016/j.rsci.2015.09.005
  11. Jannasch R, Quan Y, Samson R (2001) Final report: a process and energy analysis of pelletizing switchgrass. Resource Efficient Agricultural Production (REAP-Canada), Ste. Anne de Bellevue, OC, Canada. http://www.reap-canada.com/library.htm
  12. Kaliyan N, Morey RV (2006) Factors affecting the strength and durability of densified products. Presented to: annual international meeting of the ASABE, Portland. doi: https://doi.org/10.1016/j.biombioe.2008.08.005
  13. Kaliyan N, Morey RV (2010) Natural binders and solid bridge type binding mechanisms in briquettes and pellets made from corn stover and switchgrass. Biores Technol 101:1082–1090. doi: https://doi.org/10.1016/j.biortech.2009.08.064 CrossRefGoogle Scholar
  14. Karamchandani A (2013) Predictive relationships for quality assessment of densified biomass using fundamental mechanical properties of ground corn stover, switchgrass, and willow. MSc Thesis, Pennsylvania State University, p 95Google Scholar
  15. Keeney D (1997) What goes around comes around—the nitrogen issues cycle. In: Third international Dahlia Greidinger symposium on fertilization and the environment. Technion Israel Institute of Technology, Haifa, IsraelGoogle Scholar
  16. Keshvari N (2011) Determining the parameters of single screw extruder to produce urban waste compost pellets. MSc Thesis. College of Aburaihan, University of Tehran, IranGoogle Scholar
  17. Li Y, Liu H (2000) High-pressure densification of wood residues to form an upgraded fuel. Biomass Bioenergy 19(3):177–186. doi: https://doi.org/10.1016/S0961-9534(00)00026-X CrossRefGoogle Scholar
  18. Mani S, Tabil LG, Sokhansanj S (2003) An overview of compaction of biomass grinds. Powder Handl Process 15(3):160–168Google Scholar
  19. McMullen J, Fasina OO, Wood CW, Feng Y, Mills G (2004) Physical characteristics of pellets from poultry litter. ASAE paper no. 046005. St. Joseph, Mich.: ASAE. doi: https://doi.org/10.13031/2013.16916
  20. Oduntan OB, Koya OA (2015) Effect of speed, die sizes and moisture contents on durability of cassava pellet in pelletizer. Res Agric Eng 61:35–39. doi: https://doi.org/10.17221/9/2013-RAE CrossRefGoogle Scholar
  21. Pietsch W (1997) Size enlargement by agglomeration. In: Fayed ME, Otten L (eds) Handbook of powder science & technology. Springer, Boston, pp 202–377. doi: https://doi.org/10.1007/978-1-4615-6373-0_6
  22. Ramírez-Gómez Á (2016) Research needs on biomass characterization to prevent handling problems and hazards in industry. Part Sci Technol. doi: https://doi.org/10.1080/02726351.2016.1138262 Google Scholar
  23. Shaviv A (2000) Advances in controlled release of fertilizers. Adv Agron 71:1–49. doi: https://doi.org/10.1016/S0065-2113(01)71011-5 Google Scholar
  24. Shaw M (2008) Feedstock and process variables influencing biomass densification. MS thesis. University of Saskatchewan, Department of Agricultural and Bioresource Engineering. University of Saskatchewan PressGoogle Scholar
  25. Shirali R (2012) Physical and mechanical properties of pellets produced by extruding a mixture of cow manure and urea. MSc Thesis, College of Aburaihan, University of Tehran, IranGoogle Scholar
  26. Sokhansanj S, Mani S, Bi X, Zaini P, Tabil L (2005) Binderless pelletization of biomass. Presented at the ASAE annual international meeting. Tampa, FL, ASAE paper no. 056061. ASAE, 2950 Niles Road, St. Joseph, MI 49085-9659 USA, July 17–20Google Scholar
  27. Tabil L, Sokhansanj S (1996) Process conditions affecting the physical quality of alfalfa pellets. Appl Eng Agric 12(3):345–350CrossRefGoogle Scholar
  28. Tumuluru JS, Wright CT, Hess JR, Kenney KL (2011) A review of biomass densification systems to develop uniform feedstock commodities for bioenergy application. Biofuels. Bioprod Bioref 5:683–707CrossRefGoogle Scholar
  29. Vahedian A (2004) Strength of materials, 2nd edn. Publication of Academic Science press, London, pp 398–400 (in Persian) Google Scholar
  30. Wilson TO (2010) Factors affecting wood pellet durability. Pennsylvania State University, Department of Agricultural and Biological Engineering, State College, PA. PhD ThesisGoogle Scholar
  31. Yaman S, Şahan M, Haykiri-açma H, Şeşen K, Küçükbayrak S (2000) Production of fuel briquettes from olive refuse and paper mill waste. Fuel Process Technol 68(1):23–31. doi: https://doi.org/10.1016/S0378-3820(00)00111-9 CrossRefGoogle Scholar
  32. Yehia KA (2007) Estimation of roll press design parameters based on the assessment of a particular nip region. Powder Technol 177(3):148–153. doi: https://doi.org/10.1016/j.powtec.2007.03.015 CrossRefGoogle Scholar
  33. Zhao Y, Wang P, Li J, Chen Y, Ying X, Liu S (2009) The effect of two organic manures on soil properties and crop yields on a temperate calcareous soil under a wheat-maize cropping system. Eur J Agron 31(1):36–42. doi: https://doi.org/10.1016/j.eja.2009.03.001 CrossRefGoogle Scholar

Copyright information

© Islamic Azad University (IAU) 2018

Authors and Affiliations

  1. 1.Agrotechnolog Department, College of AburaihanUniversity of TehranTehranIran

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