壳类农业废弃物固体碳源释碳性能研究  

Study on releasing carbon performance of agricultural waste shells as solid carbon sources

作　　者：谢林花[1] 丁绍兰[1] 陈晓娇[1] 王明[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2013年第5期39-44,共6页Journal of Shaanxi University of Science & Technology

基　　金：陕西科技大学校级自选科研项目(ZX11-08)

摘　　要：碳源是影响生物反硝化脱氮的一个重要因素,添加碳源是处理氮素含量比较高的各类污水的一个常用技术.研究了4种壳类农业废弃物如核桃壳、花生壳、板栗壳、松子壳等作为反硝化外加碳源的释碳机制,以及不同因素对其释碳性能的影响.结果表明,这4种碳源材料的释碳过程都满足二级动力学方程,综合比较核桃壳最适合作为外加碳源材料.正交试验的结果表明,水温的升高和固液比的增加都能导致碳源材料释碳能力的提高,但是水体pH值的变化却对碳源材料的释碳能力没有非常明显的影响.水温、pH值、固液比对碳源材料的释碳性能的影响显著程度依次为:固液比>水温>pH值.The carbon source is an important factor in the biological denitrification process. Adding carbon source is a common method in processing various types of wastewater that with high nitrogen. This passage studies four types of agricultural waste shell substance in- cluding walnut shell, peanut shell, chestnut shell, pine nuts shell as plus carbon source of their release mechanism, and studies different factors on the release of carbon performance. Experimental results show that in the four kinds of carbon materials, carbon release proces- ses meet with second kinetic equation, and through comprehensive comparison, the most suitable external carbon source is walnut shell. Orthogonal experiment results show that the increasing of water temperature and solid-liquid ratio can stimulate carbon materials/ relea- sing of carbon capacity, but the change in pH of water has no significant impact on carbon material＇s releasing capacity. Sort temperature, pH, solid-liquid ratio in the order of a signif- icant degree, and that is ： solid-liquid ratio〉temperature〉pH.

关 键 词：壳类农业废弃物 固体碳源 释碳 

分 类 号：X171.5[环境科学与工程—环境科学]