摘要
以柔性纤维负载Ti O2为光催化剂,自制筒式光催化反应器,进行光催化模拟水产养殖废水实验,考察了曝气量、p H值、催化剂投加量与初始浓度等因素对氨氮去除率的影响。结果表明,在曝气量为1.0 L/min,催化剂用量12.5 g,碱性条件及初始浓度在90 mg/L时,氨氮降解率最高为85.3%。不同初始浓度氨氮的光催化降解速率符合准一级动力学模型,模拟养殖箱连续运行15 d表明,氨氮浓度降低,可满足水产养殖废水标准。
The tubular photocatalytic reactor was prepared by using Ti O2 as the photocatalyst,experiment on photocatalytic simulation of aquaculture wastewater. The effects of aeration rate,p H value,catalyst dosage and initial concentration on ammonia nitrogen removal rate were studied. The results showed that the degradation rate of ammonia nitrogen was 85. 3% when the aeration rate was 1. 0 L/min,the amount of catalyst was 12. 5 g,alkaline condition and the initial concentration of 90 mg/L. The photocatalytic degradation rate was in accordance with the quasi-first-order kinetics model. The continuous operation of 15 d of simulation container shows that the concentration of ammonia nitrogen was lower than that of aquaculture wastewater.
作者
王理明
欧耳
郭雅妮
孙文
李书琪
马曼立
WANG Li-ming;OU Er;GUO Ya-ni;SUN Wen;LI Shu-qi;MA Man-li(College of Environment and Chemical Engineering,Xi'an Polytechnic University,Xi'an 710048,China)
出处
《应用化工》
CAS
CSCD
北大核心
2018年第7期1441-1443,共3页
Applied Chemical Industry
基金
陕西省教育厅自然科学专项基金(16JK1323)
关键词
筒式光催化反应器
TIO2
养殖废水
氨氮
tubular photocatalytic reactor
TiO2
aquaculture wastewater
NH4+ -N