循环比和水力停留时间对反硝化过程的影响

Q3 Social Sciences

Journal of Urban and Environmental Engineering Pub Date : 2019-10-05 DOI:10.4090/juee.2019.v13n1.080086

Kevser Cirik, Ozan Eskikaya

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引用次数: 0

摘要

在本研究中，从中去除氮化合物是基于硝化和反硝化。含氮有机化合物矿化释放的铵在硝化过程中首先被氧化为亚硝酸盐/硝酸盐。在反硝化过程中，硝酸盐被还原为二氮。影响该工艺的参数有pH、温度、电子供体/受体比、水力停留时间硝酸盐回收率等。在25±0.5°C的恒温条件下，向间歇式反应器中加入Kahramanmaraş城市废水80d。反应器的性能由颜色、铵（NH4+）、硝酸盐（NO-3）、亚硝酸盐（NO-2）、无机碳（IC）和总有机碳（TOC）参数决定。根据我们的结果，发现100%的回收时间是最佳的。硝酸盐和铵的去除率超过99%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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EFFECT OF RECYCLE RATIO AND HYDRAULIC RETENTION TIME ON DENITRIFICATION-NITRIFICATION PROCESS

In this study, the elimination of nitrogen compounds from is based on nitrifiication and denitrification. Ammonium released from the mineralization of nitrogen-containing organic compounds is oxidized first to nitrite/nitrate in nitrification process. During denitrification, nitrate is reduced to dinitrogen. The parameters effect this process are pH, temperature, electron donor/accepter ratio, hydraulic retention time nitrate-recycling rate etc. In this study, sequential batch denitrification-nitrification reactor was operated for testing different nitrate recycling ratio (100-700%). The batch reactor was fed with Kahramanmaraş urban wastewater during 80d at constant temperature of 25±0.5°C. The reactor performance was determined by color, ammonium (NH4+), nitrate (NO-3), nitrite (NO-2), inorganic carbon (IC), total organic carbon (TOC) parameters. According to our results, 100% recycling time was found optimum. Nitrate and ammonium removals were over 99%.

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来源期刊

Journal of Urban and Environmental Engineering Social Sciences-Urban Studies

CiteScore

0.90

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： Journal of Urban and Environmental Engineering (JUEE) provides a forum for original papers and for the exchange of information and views on significant developments in urban and environmental engineering worldwide. The scope of the journal includes: (a) Water Resources and Waste Management [...] (b) Constructions and Environment[...] (c) Urban Design[...] (d) Transportation Engineering[...] The Editors welcome original papers, scientific notes and discussions, in English, in those and related topics. All papers submitted to the Journal are peer reviewed by an international panel of Associate Editors and other experts. Authors are encouraged to suggest potential referees with their submission. Authors will have to confirm that the work, or any part of it, has not been published before and is not presently being considered for publication elsewhere.