摘要
研究了亚甲基蓝 ,硫脲 ,亚甲基蓝 /硫脲 ,酸碱预处理 ,改变稀释水 p H值五种预处理方法对硝化过程 BOD5测量的影响。亚甲基蓝在抑制硝化过程同时 ,抑制碳化阶段。硫脲在抑制硝化过程时 ,本身存在可生化降解问题。亚甲基蓝 /硫脲在稀释水中浓度各为 1 .3 mg/ L时 ,对硝化过程有很好抑制作用 ,又不影响碳化阶段。酸碱预处理及改变稀释水 p H,效果不佳。
Pretreatment by Methylene blue, thiourea, methylene blue/thiourea, acid or alkali and changes of the dilute water's pH are used for nitrification control in the BOD 5 test While methylene blue control nitrification, it also inhibites carbonization Thiourea can be biodegradabe while it controls nitrification When the concentration of methylene blue/thiourea in the dilute sample are respective 1 3 mg/L, the nitrification can be controlled very well, and at the same time, the carbonization is not influenced Pretreatment by acid and alkali can not achieve the aim of nitrification control
出处
《中国环境监测》
CAS
CSCD
北大核心
2000年第2期41-43,共3页
Environmental Monitoring in China
