摘要
考察了吸收剂量、初始H2O2浓度以及初始pH值对辐照处理垃圾渗滤液效果的影响。使用紫外可见光吸光度、化学需氧量和浑浊度测定方法,对垃圾渗滤液中污染物浓度进行分析。结果表明:添加H2O2能有效地提高垃圾渗滤液中污染物的辐照降解效果。初始pH=3、吸收剂量为40 kGy、H2O2浓度为10 mmol/L时,垃圾渗滤液的处理效果最好。其中,CODcr去除44.3%、浑浊度下降98.3%。初始H2O2浓度与初始pH值对γ辐射联合H2O2处理垃圾渗滤液具有重要影响。
The synergistic degradation of landfill leachate was performed by Y-rays irradiation and additive of hydrogen peroxide （H202）. Effects of absorbed dose, the concentration of H202 and initial pH on irradiation degrada- tion efficiency were studied. Ultraviolet-visible spectrometry （UV-VIS）, chemical oxygen demand （CODcr） and tur- bidity were used to monitor the concentration of contaminants in landfill leachate, respectively. The results indicated that the improvement of irradiation degradation efficiency was observed when irradiation was carried out combined with additive of H202. When the initial pH was 3, the concentration of H202 was 10 mmol/L and absorbed dose was 40 kGy, the removal of CODcr and turbidity was up to 44.3% and 98.3%, respectively. It was considered that the con- centration of H202 and initial pH is vital in the processing of landfill leachate treatment by Y-rays/H202.
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
2013年第1期60-64,共5页
Journal of Radiation Research and Radiation Processing
关键词
丫辐照
H2O2
垃圾渗滤液
Y-rays irradiation, H202, Landfill leachate
