摘要
以Fe3+草酸盐络合物H2O2作光氧化剂,利用太阳光对垃圾渗滤液进行了光氧化降解实验。结果表明:在溶液的初始pH为3 0,H2O2投加量为460mg L,ρ(Fe3+)为20mg L条件下,反应60min后,CODCr去除率可达80%左右;溶液的pH,ρ(H2O2)和ρ(Fe3+)对光解过程有显著影响,而且在太阳光的照射下,CODCr去除率比在紫外光下高。在一定实验条件下,用日光H2O2 草酸铁体系对城市垃圾渗滤液处理效果较好,可作为垃圾渗滤液的深度处理。
The photooxidative degradation of the landfill leach under solar irradiation by H_2O_2/ferric oxalate complexes was studied. The result indicates that under the initial condition of pH=3.0, ρ(H_2O_2)=460 mg/L and ρ(Fe^(3+))=20 mg/L, the removal percentage of COD_(Cr) can reach over 80% in 60 minutes. It is found that the initial pH, ρ(H_2O_2) and ρ(Fe^(3+)) of the solution have significant effects in this photooxidative process. The removal percentage of COD_(Cr) is higher under solar irradiation than under UV irradiation. Under the selected conditions, using solar/H_2O_2/ferric oxalate complexes to treat the landfill leach has good efficiency.
出处
《环境科学研究》
EI
CAS
CSCD
北大核心
2005年第3期29-32,共4页
Research of Environmental Sciences
基金
江西省自然科学基金资助项目(0220019)
关键词
垃圾渗滤液
草酸铁
光催化
landfill leach
ferric oxalate
photocatalysis
