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[原创] 水平与垂直流湿地净化效果比较(德国资料,带中文翻译)

水平与垂直流湿地净化效果比较(德国资料,带中文翻译)

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Illustration No. 3: Purification performance of vertical and horizontal filters in comparison
   水平与垂直过滤系统净化效果比较(红色代表水平过滤系统,蓝色代表垂直过滤系统)

An examination of the spacial distribution of the microbacterial activity yielded results suggesting that at least 80 % of the CSB disintegration takes place within a ground depth of 20 cm. With extraordinarily good oxygen supplementation the CSB elimination even reached 90 % within that same ground depth (Kunst and Flasche 1995, Platzer 1997).
微生物分布情况研究表明至少80%的CSB分解发生在离地面20厘米的地方,如果氧气充分,CSB分解率可达90%。(Kunst 、Flasche 1995, Platzer 1997)
The nitrification takes place in this area almost exclusively as well. The nitrification of wastewater based-NH4-N nitrogen reaches 95 % within a ground depth of 20 cm if favorable oxygen conditions are provided. The first 5 cm ground offer the highest potential for nitrification. The nitrification area expands to lower ground levels in response to an increasing hydraulic and organic load.
同时,此区域也是硝化作用区,如果氧气充分,硝化作用(NH4-N)率为95%。离地面5厘米的地方是硝化作用几率最高的区域, 随着水力负荷增大及有机物含量增多,硝化作用区域离地面就更远。
In a vertical filter made up of sand and gravel more than 80 % of the total nitrogen at 50 cm ground depth consists of nitrate, whereas only roughly 10 % consist of ammonium. The total nitrogen disintegration is low due to the fact that denitrification is impeded or stopped through the aeration of the especially active top ground levels.
垂直过滤系统由沙、卵石组成,在离地面50厘米的区域,氮主要以硝酸盐的形式存在(80 %),大约只有10%的氮是以铵的形式存在。由于系统的上层通风效果特别好,所以反硝化作用不活跃,去氮量也低。
These research findings lead to the following conclusions:
1.        Intermittendly infed vertical filters are capable of very high nitrification performances.
2.        The factor limiting nitrogen elimination is the empeded denitrification.
3.        higher CSB concentrations in the wastewater relocate the nitrification level to lower ground levels (> 50 cm).
研究成果如下:
1.        由于垂直过滤系统具有间歇布水功能,所以硝化作用非常活跃。
2.        反硝化作用受阻影响去氮效果。
3.        废水中CSB浓度的增大导致消化作用在离地面更远的区域(离地面50 cm处)发生。

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CSB是什么东西?所有的碳单元吗?还是COD+BOD?

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