Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4996850 | Bioresource Technology | 2017 | 30 Pages |
Abstract
The study investigated the effect of different initial moisture (IM) content (55, 60, 65, and 70%) of composting mixtures (swine manure and sawdust) for the production of nutrient rich manure, and the recovery of ammonia through a condensation process using a vertical cylindrical in-vessel composter for 56Â days. The composting resulted in a significant reduction in C:N ratio and electrical conductivity (EC), with a slight increase in pH in all products. The NH3 were emitted notably, and at the same time the NO3â-N concentration gradually increased with the reduction of NH4+-N in the composting mixtures. The overall results confirmed, the 65% IM showed the maximum nutritional yield, maturity and non-phytotoxic effects (Lycopersicon esculentum L.), with the results of ideal compost product in the following order of IM: 65%Â >Â 60%Â >Â 70%Â >Â 55%. Finally, the recovered condensed ammonia contained considerable ammonium nitrogen concentrations and could be used as fertilizer.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Jung Kon Kim, Dong Jun Lee, Balsubramani Ravindran, Kwang-Hwa Jeong, Jonathan Woon-Chung Wong, Ammaiyappan Selvam, Obuli P. Karthikeyan, Jung-Hoon Kwag,