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Struvite-based fertilizer and its physical and chemical properties.

Latifian, Maryam LU ; Liu, Jing LU and Mattiasson, Bo LU (2012) In Environmental Technology 33(24). p.2691-2697
Abstract
This study describes a method to formulate struvite fine powder into pellets that are easy to spread on agricultural land. To evaluate the quality of produced pellets, some chemical and physical properties commonly measured for fertilizers were tested. The findings indicated that the salt index and heavy metal content ofstruvite pellets were significantly lower than those of commercial NPK fertilizers. In addition, the percentage of nutrient released from struvite pellets after 105 days was in the range of 9.6-23.2, 8.4-26.7 and 11.3-32.6% for nitrogen, phosphorous and magnesium, respectively, which is considerably lower than that of commercial NPK fertilizer. Among different formulations between struvite crystals and binders, starch and... (More)
This study describes a method to formulate struvite fine powder into pellets that are easy to spread on agricultural land. To evaluate the quality of produced pellets, some chemical and physical properties commonly measured for fertilizers were tested. The findings indicated that the salt index and heavy metal content ofstruvite pellets were significantly lower than those of commercial NPK fertilizers. In addition, the percentage of nutrient released from struvite pellets after 105 days was in the range of 9.6-23.2, 8.4-26.7 and 11.3-32.6% for nitrogen, phosphorous and magnesium, respectively, which is considerably lower than that of commercial NPK fertilizer. Among different formulations between struvite crystals and binders, starch and bentonite were the most efficient in agglomerating struvite powder, leading to an increase in the crush strength to over the recommended limit of >2.5 kgf for fertilizer hardness. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Technology
volume
33
issue
24
pages
2691 - 2697
publisher
Selper Ltd
external identifiers
  • pmid:23437670
  • wos:000311943700002
  • scopus:84871911985
ISSN
1479-487X
DOI
10.1080/09593330.2012.676073
language
English
LU publication?
yes
id
7c226e33-467e-49d5-aa58-742c36f5d2e4 (old id 3559460)
date added to LUP
2013-03-06 16:49:14
date last changed
2017-11-12 03:05:44
@article{7c226e33-467e-49d5-aa58-742c36f5d2e4,
  abstract     = {This study describes a method to formulate struvite fine powder into pellets that are easy to spread on agricultural land. To evaluate the quality of produced pellets, some chemical and physical properties commonly measured for fertilizers were tested. The findings indicated that the salt index and heavy metal content ofstruvite pellets were significantly lower than those of commercial NPK fertilizers. In addition, the percentage of nutrient released from struvite pellets after 105 days was in the range of 9.6-23.2, 8.4-26.7 and 11.3-32.6% for nitrogen, phosphorous and magnesium, respectively, which is considerably lower than that of commercial NPK fertilizer. Among different formulations between struvite crystals and binders, starch and bentonite were the most efficient in agglomerating struvite powder, leading to an increase in the crush strength to over the recommended limit of >2.5 kgf for fertilizer hardness.},
  author       = {Latifian, Maryam and Liu, Jing and Mattiasson, Bo},
  issn         = {1479-487X},
  language     = {eng},
  number       = {24},
  pages        = {2691--2697},
  publisher    = {Selper Ltd},
  series       = {Environmental Technology},
  title        = {Struvite-based fertilizer and its physical and chemical properties.},
  url          = {http://dx.doi.org/10.1080/09593330.2012.676073},
  volume       = {33},
  year         = {2012},
}