Digestate from anaerobic reactor as a potential fertilizer
Journal Title: Carbon - Science and Technology - Year 2015, Vol 7, Issue 2
Abstract
Biogas is one of the most promising sources of renewable energy in today’s world. Liquid and the solid digestates are the byproducts of anaerobic digestion of various kinds of wastes to produce biogas. Disposal of liquid digestate is one of the major issues faced by the existing biogas plant facilities worldwide. In this study, liquid digestate from anaerobic digestion of food waste is examined for its potential as an organic fertilizer for food crops. Coconut peat is used as a matrix to hold the digestate and also to grow plants in a soil-less culture. Three plants from the family- Solanaceae were chosen viz. tomato (Solanum lycopersicum), green chilli (Capsicum annum) and eggplant or brinjal (Solanum melogena). The plants were grown in trays as control (coconut peat and water) and slurry (coconut peat and digestate). Digestate sets showed an increase in growth parameters as compared to control by a factor of 60.8 % in tomato, 48.6 % in chilli and 97 % in brinjal for plant height, 86 % in tomato, 82.4 % in chilli and 63.8 % in brinjal for leaf length, and 66.3 % in tomato, 87.3 % in chilli for number of leaves. The final yield for chilli plants was 2.5 fruits/plant in 70 days while for brinjal it was 2 fruits/plant after 74 days of growth.
Authors and Affiliations
Navodita Bhatnagar and Srikanth Mutnuri
Keywords
Related Articles
- EP ID EP49954
- DOI -
- Views 266
- Downloads 0
Adsorption of Remazol Black B dye on activated carbon felt
The adsorption of Remazol Black B (anionic dye) on a microporous activated carbon felt is investigated from its aqueous solution. The surface chemistry of activated carbon is studied using X-ray microanalysis, "Boehm" t...
Preparation of iron doped carbon coated W18O49 and its photoactivity
Iron doping to carbon coated W18O49 was carried out through solid-state reaction of WO2.9 with iron acetate at 400oC, followed by carbonization with poly(vinyl alcohol) (PVA) as carbon precursor at 800oC in N2 atmosphere...
Effect of temperature on micropore of activated carbon from sticky rice straw by H3PO4 activation
Microporous activated carbon was prepared from sticky rice straw using activated phosphoric acid. The effects of carbonization temperature, activation temperature, and phosphoric acid on physical and chemical properties...
In-situ fabrication of cobalt oxide / sulphide mixed phase nanoparticles in Polyphenylenesulphide matrix
A novel approach for the in-situ fabrication of combined cobalt oxide / sulphide nanoparticles in sulphur containing polymer polyphenylenesulphide (PPS) by polymer inorganic solid-solid reaction technique is reported her...
Effect of thermoplastic polyurethane content on properties of PC/TPU blend filled with Montmorillonite
The present study was taken up to investigate the effect of addition of Montmorillonite (MMT) to Poly carbonate/Thermoplastic polyurethane (PC/TPU) blends. A master batch of PC/MMT (70/30) was prepared using Hake Rheomix...