Influence of ozone disinfection on nitrogen form transformation and content in anaerobic sludge

被引：0

作者：

Qiu, Ling ^{[1
,2
]}

Zhang, Rongting ^{[1
,2
]}

机构：

[1] College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, 712100, Shaanxi

[2] Rural Renewable Energy Development and Utilization of Western Experiment Station, Ministry of Agriculture, Yangling, 712100, Shaanxi

来源：

Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2015年 / 46卷 / 02期

关键词：

Anaerobic sludge; Nitrogen form; Ozone aeration;

D O I：

10.6041/j.issn.1000-1298.2015.02.026

中图分类号：

学科分类号：

摘要：

In order to study the influences of different durations of ozone aeration on the nitrogen content and form transformation in anaerobic sludge, the experiment was conducted with self-designed apparatus, with six different durations of ozone aeration, 0, 10, 20, 30, 40, 50 min, respectively, sampling and measuring content of nitrogen in different forms. The results showed that different durations of ozone aeration remarkably affected the nitrogen content in different forms in wastewater system. Specifically, the content of total nitrogen, Kjeldahl nitrogen, soluble Kjeldahl nitrogen, ammonium nitrogen, nitrite nitrogen, particulate organic nitrogen and particulate total nitrogen, showed significant decline trend with magnitudes of 124.76, 232.51, 11.45, 191.28, 4.35, 221.06 and 286.06 mg/L (P<0.05), respectively. By the contrary, the content of soluble total nitrogen, nitrate nitrogen and dissolved organic nitrogen showed upward trend, which were increased by 161.29, 29.42 and 179.83 mg/L at the end of 50 min (P<0.05), respectively. ©, 2015, Chinese Society of Agricultural Machinery. All right reserved.

引用

页码：176 / 180

页数：4

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