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.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Latifian M,Liu J,Mattiasson Bdoi
10.1080/09593330.2012.676073subject
Has Abstractpub_date
2012-12-01 00:00:00pages
2691-7issue
22-24eissn
0959-3330issn
1479-487Xjournal_volume
33pub_type
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