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首页> 外文期刊>International Journal of Environmental Research and Public Health >Nitrogen and Phosphorus Removal from Wastewater Treatment Plant Effluent via Bacterial Sulfate Reduction in an Anoxic Bioreactor Packed with Wood and Iron
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Nitrogen and Phosphorus Removal from Wastewater Treatment Plant Effluent via Bacterial Sulfate Reduction in an Anoxic Bioreactor Packed with Wood and Iron

机译：在装有木和铁的缺氧生物反应器中通过细菌硫酸盐还原去除废水处理厂废水中的氮和磷

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摘要

We investigated the removal of nitrogen and phosphate from the effluent of a sewage treatment plant over a long-term operation in bioreactors packed with different combinations of wood and iron, with a trickling filter packed with foam ceramics for nitrification. The average nitrification rate in the trickling filter was 0.17 kg N/m3?day and remained at 0.11 kg N/m3?day even when the water temperature was below 15 °C. The denitrification and phosphate removal rates in the bioreactor packed with aspen wood and iron were higher than those in the bioreactor packed with cedar chips and iron. The bioreactor packed with aspen wood and iron continued to remove nitrate and phosphate for >1200 days of operation. The nitrate removal activity of a biofilm attached to the aspen wood from the bioreactor after 784 days of operation was 0.42 g NO3-N/kg dry weight wood? day. There was no increase in the amount of dissolved organic matter in the outflow from the bioreactors.
机译：我们研究了在长期运行的生物反应器中从污水处理厂的废水中去除氮和磷酸盐的情况，该反应器装有木材和铁的不同组合，滴滤池装有泡沫陶瓷用于硝化。滴滤池中的平均硝化速率为0.17 kg N / m3·day，即使当水温低于15°C时也保持在0.11 kg N / m3·day。填充有白杨木和铁的生物反应器中的反硝化和磷酸盐去除率高于填充有雪松片和铁的生物反应器中的反硝化和磷酸盐去除率。充满白杨木和铁的生物反应器在运行超过1200天的过程中继续去除硝酸盐和磷酸盐。 784天的操作后，从生物反应器附着在白杨木上的生物膜的硝酸盐去除活性为0.42 g NO3-N / kg干重木材？天。从生物反应器流出的溶解有机物数量没有增加。

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