当前位置: 首页 > 文章 > 臭氧曝气对厌氧污泥氮素形态与含量的影响 农业机械学报 2015,46 (2) 176-180
Position: Home > Articles > Influence of Ozone Disinfection on Nitrogen Form Transformation and Content in Anaerobic Sludge Transactions of the Chinese Society for Agricultural Machinery 2015,46 (2) 176-180

臭氧曝气对厌氧污泥氮素形态与含量的影响

作  者:
邱凌;张容婷
单  位:
西北农林科技大学机械与电子工程学院;农业部农村可再生能源开发利用重点实验站
关键词:
厌氧污泥;臭氧曝气;氮素形态
摘  要:
用自行设计的臭氧曝气装置对厌氧污泥进行臭氧曝气试验,在曝气时间分别为0、10、20、30、40、50 min时取样测定各种形态氮素含量。结果表明,厌氧污泥随臭氧曝气时间的不同对氮素形态及含量有显著影响。总氮、总凯氏氮、溶解性凯氏氮、铵态氮、亚硝态氮、颗粒态有机氮、颗粒态总氮均随曝气时间延长而减少,连续曝气50 min后,分别降低124.76、232.51、11.45、191.28、4.35、221.06、286.06 mg/L,均达到显著性差异水平(P<0.05);可溶态总氮、硝态氮、溶解态有机氮随曝气时间延长而增加,持续臭氧曝气50 min,分别增加161.29、29.42、179.83 mg/L,与初始质量浓度相比,均达到显著性差异水平(P<0.05)。
译  名:
Influence of Ozone Disinfection on Nitrogen Form Transformation and Content in Anaerobic Sludge
作  者:
Qiu Ling;Zhang Rongting;College of Mechanical and Electronic Engineering,Northwest A&F University;Rural Renewable Energy Development and Utilization of Western Experiment Station,Ministry of Agriculture;
关键词:
Anaerobic sludge Ozone aeration Nitrogen form
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 of50 min( P < 0. 05),respectively.

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