摘要
为了控制污水处理过程温室气体氧化亚氮（N2O）的排放量和提高污水处理厂产能,提出了强化反硝化过程中N2O积累,而后用N2O氧化甲烷提高燃烧产能同时减少N2O排放的方法.通过研究内源反硝化过程中N2O的产生特征得出,以硝酸盐（NO-3）作为电子受体的内源反硝化过程会出现亚硝酸盐（NO-2）和N2O的积累,且二者同时出现;当以不同质量浓度的NO-2-N（13~90 mg/L）作为电子受体进行内碳源反硝化时得出,高籽（NO-2-N）会同时抑制NO-2和N2O的还原过程,从而使得内源反硝化过程中出现N2O的积累.基于此结果提出通过调控籽（NO-2-N）来强化反硝化过程中N2O的积累,从而为N2O氧化甲烷提供基础.
In order to control greenhouse gas emission and improve energy production in wastewater treatment plants, a new method based on nitrous oxide （ N2 O） oxidizing methane was proposed with anincrease in energy production from methane oxidation and a decrease in N2 O emission. This studyinvestigated N2 O production characteristic during endogenous denitrification. The results showed that nitrite and N2 O were accumulated simultaneously when nitrate was used as electron acceptor. Nitrite and N2 O reduction wereinhibited when nitrite concentrationincreasedin the range of 13-90 mg/L, resultingin N2 O accumulation during endogenous denitrification process. Based on these results, to enhance N2 O accumulation by adjusting nitrite concentration was proposed, which could provide the basis of methane oxidation using N2 O sequentially.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2015年第8期1253-1258,共6页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(51478013)
北京市自然科学基金资助项目(8154041)
北京市优秀人才培养资助项目(2014000020124G043)
关键词
污水处理
温室气体
氧化亚氮
内源反硝化
watewater treatment
greenhouse gas
endogenous denitrification
作者简介
汪传新（1963-），男，博士研究生，主要从事水污染控制方面的研究，E-mail：mabin@bjut．edu．cn
