Nitrogen conservation in composting swine waste by bamboo vinegar
Wang Dun-qiu, Zeng Quan-fang, Zuo Hua
2006
Citations
2
Citations
Journal
Journal of Guilin University of Technology
Semantic Scholar
Key Takeaway Key Takeaway: Bamboo vinegar, when mixed with straw, sawdust, and swine waste, can effectively conserve nitrogen in composting, reducing N-losses by 12.5%,10.1%, and 11.9% respectively.
Abstract
The environmental problems in the development of animal husbandry become greatly concerned by the society.Composting,the traditional craft in China,is used for treating the animal husbandry wastes.But the nitrogen nutrient in the materials is generally lost in composting.Nitrogen nutrient in composting should be kept to improve the quality of composting.The static aerobic composting system is built by bamboo vinegar,straw,sawdust and swine waste.Changes of total nitrogen,organic nitrogen,ammonia nitrogen and nitrate nitrogen in composting are analyzed to study different bamboo vinegar concentrations on composting.The analytic results of the composting after maturation show that the proper concentration of bamboo vinegar can accelerate the activation of microorganism.When the mixing with different bamboo vinegars being 1∶2000,1∶1500 and 1∶1000,it can reduce the N-losses by 12.5%,10.1% and 11.9%,respectively.