摘要
抗生素生产废水二级生物处理出水通常含部分难降解有机物,若不经处理直接排放,将对环境产生毒害,威胁人类身体健康。紫外光分解过硫酸盐产生SO-4·是一种新型的高级氧化技术。以亚胺培南生产废水二级出水为研究对象,对比了K_2S_2O_8氧化、UV辐射以及UV和K_2S_2O_8联合使用对其处理效果,系统研究了K_2S_2O_8投量、反应pH等因素对UV-K_2S_2O_8深度处理亚胺培南生产废水效果的影响。结果表明UV-K_2S_2O_8耦合是一种有效的去除废水中难降解有机污染物的技术,消除抗生素废水处理过程中存在的脱色不彻底等问题,在最优条件下,对COD去除率可达100%,TOC去除率达94.4%。为抗生素生产废水的深度处理提供技术参考。
After conventional secondary biological treatment,some refractory organics still exist in antibiotic production wastewater. The wastewater will pollute environment and threaten human is health seriously if drained directly. Persulfate decomposed under UV irradiation to generate SO4^-· is a new advanced oxidation technology. In this paper,UV-K2S2O8 process was applied in the advanced treatment of imipenem production wastewater. Firstly, the wastewater treatment efficiencies by different processes were compared,such as K2S2O8 oxidation,UV irradiation and UV-K2S2O8 combined process. Then,the main influencing factors of UV-K2S2O8 process were studied,including the K2S2O8 dosage and the initial p H. The results indicated that the UV-K2S2O8 coupling process was an effective removal technology for refractory organic pollutants in wastewater,which could destroy the chromophore thoroughly. Under the optimal conditions,the COD removal efficiency and the TOC removal efficiency could reach 100% and 94. 4%,respectively. This research could provide technical references for the advanced treatment of antibiotic production wastewater.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第10期26-30,共5页
Environmental Engineering
基金
国家自然科学基金项目"硫酸根自由基的产生及其降解水中有机污染物的机理研究"(21507081)
河南省高等学校青年骨干教师资助项目
