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Volume 8, Issue 5 (Suppl) J Bioremediat Biodegrad, an open access journal
ISSN: 2155-6199 Biofuels Congress 2017
September 05-06, 2017
September 05-06, 2017 | London, UK
Biofuels and Bioenergy
6th World Congress on
Comparative study on the nutrient concentration and productivity of bio-slurry before and after treatment
with chemical fertilizer
Kefale Wagaw and Kassa Widneh
Bahir Dar University, Ethiopia
In biogas plant, there are mainly two products: methane gas which is use for different purposes like cooking, lighting and slurry which
can be used as organic fertilizer. The main target of this study was characterizing the slurry by measuring the relative amount of
macro and micro nutrients like Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, and Manganese by using standard methods.
And comparative study on the productivity of organic fertilizer at different treatments steps with commercial fertilizer on selected
crops has been performed. Potassium and Calcium values increase when it was composted. This is because of that decomposed
vegetables are sources of both Ca and K during composting while Magnesium and Manganese values decrease when the slurry
converts to compost. Both compost and commercial fertilizer have the same productivity for onion cultivation. Compost, gives the
highest incremental yield of chills (even higher than that of chemical fertilizer). From productivity test 1.5 kg/m2 onions and 3.75 kg/
m2 chills was produced using biogas-slurry compost.
Biography
Kefale Wagaw is a Lecturer in Chemical Engineering Program and Researcher in biofuel energy and essential oil extraction from plants and fruits such as: biogas
co-digestion and optimization, oil/biodiesel blending with kerosene. He is also interested in characterization and utilization of bioslury for crop production, and bio-
ethanol production.
Kefale Wagaw et al., J Bioremediat Biodegrad 2017, 8:5(Suppl)
DOI: 10.4172/2155-6199-C1-008