文章摘要
王曦,乔森,周集体.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[J].,2019,59(6):597-603
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 of wastewater treatment and greenhouse gas emission reduction performance based on microalgae-activated sludge system
  
DOI:10.7511/dllgxb201906007
中文关键词: 微藻  活性污泥  废水  有机物    
英文关键词: microalgae  activated sludge  wastewater  organics  nitrogen  phosphorus
基金项目:国家自然科学基金资助项目(21677026).
作者单位
王曦,乔森,周集体  
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中文摘要:
      基于活性污泥的废水处理工艺需要消耗电能来提供氧气,因此带来了大量的碳排放;除此之外,还会产生一些温室气体,例如甲烷和氧化亚氮.为此通过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为1.3∶1,光照强度为2 905 lx时,该体系具有最好的污染物处理效果,COD的浓度可在6 h达到0 mg/L,同时没有温室气体产生;氨氮的浓度可以在8 h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100%.在24 h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 (AS) consumes electric energy to support oxygen, which will produce a large amount of carbon. Meanwhile the process also produces other greenhouse gases, such as CH4 and N2O. The symbiotic system of microalgae (MA) and activated sludge is constructed to degrade the pollutants in the wastewater without greenhouse gas emissions. The results show that when the ratio of MA and AS is 1.3∶1 and the light intensity is 2 905 lx, this system has the best pollutants degradation effect. COD concentration can be reduced to 0 mg/L in 6 h without greenhouse gases production.The concentration of ammonia nitrogen drops to 0.08 mg/L within 8 h and the removal rate of ammonia nitrogen can be 99.6%. The total nitrogen removal rate can be 87.1%. The removal rate of total phosphorus can reach 100%. In the 24 h experiment, at the light-free stage there is also good removal capacity and no greenhouse gas generates.
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