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| 基于微藻-活性污泥体系的废水处理及温室气体减排性能研究 |
| Study on Wastewater Treatment and Greenhouse Gas Emission Reduction Performance Based on Microalgae-Activated Sludge System |
| 投稿时间：2019-03-18 修订日期：2019-04-16 |
| DOI： |
| 中文关键词: 微藻 活性污泥 废水 有机物 氮 磷 |
| 英文关键词: microalgae activated sludge wastewater organics, nitrogen and phosphorus |
| 基金项目:国家自然科学基金资助项目 |
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| 摘要点击次数: 270 |
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| 中文摘要: |
| 基于活性污泥的污水处理工艺需要消耗电能来提供氧气，而这会带来大量的碳排放。除此之外，这种工艺还会产生一些温室气体，例如甲烷和氧化亚氮。本研究的目的是建立微藻和活性污泥的共生体系来降解污水中的污染物，同时消除温室气体的生成。结果表明，当微藻和活性污泥的比例为1.3:1，光照强度为2905 Lux时，该体系具有最好的污染物处理效果，COD的浓度可以在6个小时达到0 mg/L，同时没有温室气体产生，氨氮的浓度可以在8小时内降低到0.08 mg/L，去除率可达到99.6%。总氮的去除率可达87.1%，总磷的去除率可达到100%。在24小时昼夜实验中，无光照阶段同样具有良好的去除效果，同时也没有温室气体产生。 |
| 英文摘要: |
| Wastewater treatment process based on activated sludge consumes electric energy to support oxygen, which will produce a large amount of carbon emissions. Meanwhile the process also produces other greenhouse gases, such as CH4 and N2O. This study was to examine the construction of symbiotic system of algal-bacteria to degrade the pollutants in the wastewater without greenhouse gas emissions. when the ratio of MA:AS=1.3:1 and the light intensity is 2905 Lux, this system has the best pollutants degradation effect. COD can be reduced to 0 mg/L during 6 hours without Greenhouse gases production. The concentration of ammonia nitrogen dropped to 0.08 mg/L within 8 hours and the removal rate of ammonia nitrogen can be 99.6%. The total nitrogen removal rate can be 87.1%. The removal rate of phosphorus can reach 100%. In the 24 hours experiment, the light free stage also has good removal capacity and no greenhouse gas generation. |
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