TITLE:
Physical-Chemical Analysis and Comparison with Standards of the Compost Produced in Sanandaj, Iran
AUTHORS:
Shahram Sadeghi, Mahbobeh Dehvari, Pegah Bahmani, Pari Teymouri, Ahmad Fattahi, Mojtaba Sadeghnia, Reza Ali Fallahzadeh
KEYWORDS:
Compost, Physical-Chemical Analysis, Sanandaj
JOURNAL NAME:
Open Access Library Journal,
Vol.2 No.10,
October
26,
2015
ABSTRACT: Improper disposal of solid waste is one of the main causes of
environmental pollution. Converting solid waste into compost and using it as an
organic fertilizer in agriculture are an effective waste management method. Quality
of such fertilizer may affect both human and environmental health. Therefore,
in this study, compost from the compost plant of Sanandaj City was analyzed for
its physical-chemical characteristics and the results were compared with the
standards. In this descriptive-analytical study, compost samples were collected
throughout a 3-month period in spring season at intervals of 15 days (2 samples
in each sampling) for chemical analysis. In the present study, parameters such
as pH, organic matter, EC, carbon, nitrogen, phosphorus, sodium, potassium, arsenic,
lead, cadmium, mercury and chromium were studied. According to the results, the
mean pH, EC, organic matter, carbon, nitrogen, phosphorus, sodium and potassium
were 7.657, 8.883 ds/m, 37.793%, 26.46%, 2.50%, 0.424%, 0.685 and 0.67%, respectively.
The average concentrations of heavy metals were 0.398, 95, 1.575,