摘要
以纳米TiO2为催化剂,在紫外光的作用下对氨氮废水进行光催化反应,分别考察了常温下TiO2投加量、反应时间、废水初始pH、外加H2O2对处理效果的影响。结果表明,对于100 mg/L的含NH3-N废水,当催化剂纳米TiO2用量为2.5 g/L、废水初始pH 8.5、反应时间为180 min、H2O2投加量为0.5 mg/L时,氨氮废水的去除率最高,达到了88.1%。
Using nanometer TiO2 as catalyzer, wastewater containing ammonia was photocatalyzed under the condition of ultra- violet. The effects of the dosage of TiO2, reaction time, initial pH, and H2 O2 dosage on the removal efficiency of ammonia were studied. The results showed that when the TiO2 dosage was 2.5 g / L, the initial pH was 8.5, the H2 O2 dosage was 0.5 g / L, and the reaction time was 180 minutes, the removal rates of ammonia in wastewater with 100 mg / L ammonia were the highest, reaching up to 88.1%.
出处
《湖北农业科学》
北大核心
2013年第21期5186-5188,共3页
Hubei Agricultural Sciences
关键词
纳米二氧化钛
光催化处理
油田氨氮废水
nanometer TiO2
photocatalytic degradation
oilfield ammonia wastewater
