厌氧氨氧化工艺的高效应用

High Eff iciency Application of Anammox Process

厌氧氨氧化菌,俗称“红菌”,通过生物化学反应,它们可以将污水中所含有的氨氮转化为氮气,以达到去除氨氮的作用,是污水处理领域很重要的微生物,该技术可以说是废水处理领域脱氮的巅峰技术。具有耗能小、占地小、运行成本低等优势,但是厌氧氨氧化菌的培养以及工艺稳定受温度、pH、溶解氧、悬浮物、有机污染物浓度等诸多因素影响,影响其运行稳定性。基于此,文章将重点分析在温度、pH和溶解氧在最佳范围时,将MBR、臭氧催化氧化技术联合用于厌氧氨氧化工艺的前处理技术,实现液体和悬浮物固体的分离,再进行厌氧氨氧化脱氮处理,结果表明,增加该前处理技术后能够有效提升厌氧氨氧化菌活性,提高厌氧氨氧化的运行稳定性。

Anaerobic ammonia oxidation bacteria,commonly known as“red bacteria”,through biochemical reactions,they can convert the ammonia nitrogen contained in the sewage into nitrogen gas to remove ammonia nitrogen,is a very important microorganism in the f ield of wastewater treatment,the technology can be said to be the pinnacle of nitrogen removal in the f ield of wastewater treatment.It has the advantages of low energy consumption,small land area and low operating cost,but the culture of anaerobic ammonia oxidation bacteria and the stability of the process are affected by many factors such as temperature,pH,dissolved oxygen,suspended matter and concentration of organic pollutants,which affect its operational stability.Based on this,the article will focus on the analysis of the pre-treatment technology of MBR and ozone catalytic oxidation technology combined for anaerobic ammonia oxidation process when the temperature,pH and dissolved oxygen are in the optimal range to achieve the separation of liquid and suspended solids,and then anaerobic ammonia oxidation denitrif ication treatment.The results show that the addition of this pre-treatment technology can effectively enhance the activity of anaerobic ammonia oxidation bacteria and improve the operational stability of anaerobic ammonia oxidation.