以羟胺为底物的自养脱氮微量热研究
Mechanism of micro-calorimetric in completely autotrophic nitrogen removal on carrier of hydroxylamine
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摘要: 羟胺（NH2OH）是单级自养脱氮系统物质转化的重要中间产物。从稳定运行（氨氮去除率维持90%以上，总氮去除率维持在80%以上）的单级自养脱氮工艺（SBBR）取活性污泥放入量热池，加入不同浓度N-NH2OH（40～200 mg/L）进行量热实验研究。结果表明，用Boltzmann模型可以很好地表达量热值与NH2OH浓度的关系，超过一定浓度的羟胺会抑制微生物活性，自营养脱氮过程的产热增量降低。
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关键词:
- 自养脱氮 /
- 羟胺 /
- 微量热 /
- Boltzmann模型
Abstract: Hydroxylamine (NH2OH) is an important intermediate material transformation in single-stage autotrophic nitrogen removal system. Take active sludge quantity to a heat pool from the stable operation (ammonia nitrogen removal maintaining 90%， total nitrogen removal maintain over 80%) of the single-stage autotrophic nitrogen removal process (SBBR)， adding different concentrations of N-NH2OH (40～200 mg/L) for the amount of heat test. The results show that the Boltzmann model can be used to express the relationship between the amount of heat value and NH2OH concentration， certain exceeded concentration of hydroxyl amine can inhibit microbial activity， since nutrition denitrification process of heat production incremental decrease.-
Key words:
- autotrophic denitrification /
- hydroxylamine /
- trace heat /
- Boltzmann model
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