EFFECT OF SOME ENGINEERING FACTORS ON THE PROPERTIES OF THE BIOFERT
Hamouda, R., Bahnasawy, A., Ali, S., El-Haddad, Z., Ramadan, E. (2015). EFFECT OF SOME ENGINEERING FACTORS ON THE PROPERTIES OF THE BIOFERT. EKB Journal Management System, 32(1), 361-380. doi: 10.21608/mjae.2015.98737
Ramy Hamouda; Adel Bahnasawy; Samir Ali; Zakaria El-Haddad; El-Shahat Ramadan. "EFFECT OF SOME ENGINEERING FACTORS ON THE PROPERTIES OF THE BIOFERT". EKB Journal Management System, 32, 1, 2015, 361-380. doi: 10.21608/mjae.2015.98737
Hamouda, R., Bahnasawy, A., Ali, S., El-Haddad, Z., Ramadan, E. (2015). 'EFFECT OF SOME ENGINEERING FACTORS ON THE PROPERTIES OF THE BIOFERT', EKB Journal Management System, 32(1), pp. 361-380. doi: 10.21608/mjae.2015.98737
Hamouda, R., Bahnasawy, A., Ali, S., El-Haddad, Z., Ramadan, E. EFFECT OF SOME ENGINEERING FACTORS ON THE PROPERTIES OF THE BIOFERT. EKB Journal Management System, 2015; 32(1): 361-380. doi: 10.21608/mjae.2015.98737

EFFECT OF SOME ENGINEERING FACTORS ON THE PROPERTIES OF THE BIOFERT

Misr Journal of Agricultural Engineering
Article 20, Volume 32, Issue 1, January 2015, Page 361-380  XML PDF (715.17 K)
Document Type: Original Article
DOI: 10.21608/mjae.2015.98737
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Authors
Ramy Hamouda1; Adel Bahnasawy2; Samir Ali2; Zakaria El-Haddad2; El-Shahat Ramadan3
1Graduate Student of Agric. Eng. Dep., Fac. of Agric., Benha Univ., Egypt
2Prof. of Agric. Eng., Fac. of Agric., Benha Univ., Egypt
3Prof. of Microbiology, Fac. of Agric., Ain Shams Univ., Egypt
Abstract
An experiment was conducted successively to study the effect of fermentation conditions on the properties of biofertilizer from cow manure. Fermentation temperatures (30, 35, and 50°C), aeration rates (1, 2, and 5 L/min) and agitation rotation speeds (200, 300, and 500 rpm) were the most important factors affecting the biofert properties. Moisture content, bulk density, total solid, electrical conductivity, Hydrogen ion concentration, total nitrogen, organic matter, phosphorus, potassium and microbial changes properties were determined. The results indicated that the lowest value of bulk density was 946.63 kg/m3 at temperature of 50°C, 300 rpm agitation speed and 5 liter/ min, ventilation rate while the highest value (983.17 kg/m3) obtained at temperature 30°C, 500rpm agitation speed and 1 liter/ min ventilation rate. The lowest moisture content was 79.87% at temperature of 30°C, agitation speed of 200rpm and ventilation rate of 1 liter/ min while the highest value was 83.19% at temperature of 50°C, agitation of 500rpm and ventilation rate of 5 liter/ min. The electrical conductivity increased from 11.6 ds m-1 at the start of fermentation to 35.07 ds m-1 at the end of fermentation period depending on the treatments under study.  The pH decreased from 8.13 at the start of fermentation to 6.77 at the end of fermentation period. The total solid of the biofert decreased from 21.2% at the start of fermentation to 16.81% at the end of fermentation period, where the lowest value was 16.81% at temperature of 50°C, agitation speed of 500rpm and ventilation rate of 5 liter/ min and the highest value (20.13%) recorded at temperature of 30°C, agitation speed of 200rpm and ventilation rate of 1 liter/ min.
 
Keywords
dairy manure; Biofert; fermentation; agitation; pathogenic; ventilation
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