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1)  biological nitrogen removal system
生物脱氮系统
2)  biological phosphorus and nitrogen removal system
生物除磷脱氮系统
1.
Based on the concept of sludge retention time(SRT),the difference between general SRT and aerobic SRT is pointed out in this paper and it shows that the SRT of each reaction phase,such as anaerobic,anoxic and aerobic one,are more important than general SRT in biological phosphorus and nitrogen removal system(BPNRS).
在分析了污泥龄概念的基础上,指出生物除磷脱氮系统总污泥龄与好氧污泥龄的区别,并且该系统厌氧、缺氧与好氧各个反应阶段的污泥龄比系统总污泥龄更重要。
3)  Traditional biological processes of nitrogen re moval
传统生物脱氮
4)  biological nitrogen removal
生物脱氮
1.
Highly effective biological nitrogen removal from high ammonia landfill leachate;
高氨氮垃圾渗滤液高效生物脱氮
2.
Development of biological nitrogen removal new process;
废水生物脱氮新工艺研究进展
3.
The influence of sludge recycle ratio on the step-feed A/O biological nitrogen removal process;
污泥回流比对分段进水A/O生物脱氮工艺的影响
5)  biodenitrification
生物脱氮
1.
Study on single-stage biodenitrification by immobilized cells;
固定化细胞单级生物脱氮研究
2.
As an innovative technology,biodenitrification had been widely studied and applied at home and abroad,it provides a feasible and forehanded way for the environmental denitrification.
生物脱氮作为一种新兴技术,已经在国内外开展了广泛的研究和应用,为环境领域的脱氮处理提供了一个实用而节能的新途径,因此,集中对生物脱氮技术在废气和废水中的应用进行了介绍,分别介绍了这两个方面的进展,并简单比较了各种技术的优缺点,还探讨了生物脱氮技术的今后发展方向。
3.
This study may be valuable for improving the activity of active sludge and the denitrification efficiency in SBR biodenitrification.
对20LSBR生物反应器处理高氨氮废水的活性污泥菌相进行了初步研究,成功地分离出了硝化菌、反硝化菌和异养菌,测定了工艺过程中各种成分和活性污泥细菌浓度的变化,为进一步研究活性污泥的活性,提高SBR生物脱氮效率奠定了基础。
6)  biological denitrogenation
生物脱氮
1.
Analysis of A/O step-feed biological denitrogenation process;
A/O工艺分段进水生物脱氮技术分析
2.
In view of the characteristics of highly concentrated ammonium-nitrogen wastewater,the treatment techniques of ammonium-nitrogen are mainly reviewed, consisting of break point chlorination,air stripping,selective ion exchange,chemical precipitation,conventional biological denitrogenation process.
结合高浓度氨氮废水的特点,评述了主要的氨氮处理技术,包括折点氯化法、吹脱法、选择性离子交换法、化学沉淀法及传统生物脱氮技术,同时还评述了硝化反硝化、亚硝酸型硝化反硝化、厌氧氨氧化以及亚硝酸型硝化-厌氧氨氧化等新型生物脱氮技术,介绍了它们的处理原理、研究现状、适宜条件和需要解决的问题,同时指出了高浓度氨氮废水处理技术今后的发展方向。
3.
The principle of biological denitrogenation in the coking-plant wastewater was explained in this paper.
叙述了焦化废水生物脱氮的原理。
补充资料:A/O生物脱氮法
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CAS号:

性质:A/O(厌氧/好氧)系统为一厌氧-好氧顺序的生物脱氮过程。它是在常规活性污泥悬浮生长系统主流中用厌氧段和好氧段相结合,同时去除废水中有机物和生物脱氮(包括硝化和反硝化)的过程。硝化作用系在好氧段进行,由硝化菌将氨氮转化为硝酸盐氮。好氧生物处理的出水回流至厌氧段,利用废水的有机物作为碳源,通过反硝化菌进行反硝化反应,将硝酸盐转化为氮气。这就是一般所说的反硝化-硝化脱氮过程。

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