期刊
BIORESOURCE TECHNOLOGY
卷 198, 期 -, 页码 207-214出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.08.072
关键词
Mature landfill leachate; Domestic wastewater; Partial nitrification; Anoxic/aerobic; Anammox
资金
- project of the National Natural Science Foundation of China [51208040]
- General Financial Grant from the China Postdoctoral Science Foundation [2013M541382]
- National or Beijing level college students innovation training projects [14010221065, 13010282007]
A combined system of anaerobic-aerobic techniques was used for deep co-treatment of mature landfill leachate and domestic sewage, mixed at a ratio of 1: 5, through partial nitrification-anammox. While ensuring synchronous removal of organic matter and nitrogen, we investigated changes in several factors under different reflux ratios (0%, 100% and 300%). High nitrification efficiency and a relatively high accumulation rate of NO2--N were achieved, the latter through selective inhibition of bacteria by free ammonia. The results indicated that maintaining the reflux ratio within an optimum range contributes to the enrichment of anammox bacteria. In this study, the optimum ratio, which permitted the highest removal rates of chemical oxygen demand (COD), NH4+-N, and total nitrogen, was 300%. The COD level in the anammox reactor (ANAOR) decreased to lower than 70 mg/L, resulting in no inhibitory effect on anammox and maximum enrichment of bacteria. (C) 2015 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据