摘要
采用微波辐射技术,对模拟乳化废水进行微波辅助化学破乳处理工艺研究.分别考查微波功率、辐射时间、静置时间和pH等工艺参数对破乳效果的影响,获得最佳处理条件：控制废水pH为2～3,在微波功率600 W下辐射1 min后,室温静置1 h.在此工艺条件下,对乳化废水的COD去除率可达70%～75%.考查初始COD值和快速冷却对废水破乳效果的影响,结果表明：该处理工艺具有良好的抗冲击性,采用经微波处理后的出水和未经处理的进水进行热交换是可行的.酸化法破乳、微波直接辐射破乳和微波辅助酸化破乳3种不同工艺的对比实验说明,微波辅助化学破乳工艺具有明显的破乳效果,微波与H＋之间具有协同作用.
The treatment process for emulsion wastewater was conducted by using microwave irradiation technology. The effects of microwave power, irradiation time, settling time and pH on demulsification were investigated. Under the optimum condition that pH range was 2 - 3, microwave power was 600 W, irradiation time was 1 min, and settling time was 1 h, the COD removal rates could come up to 70% -75%. In addition, the effects of initial COD and fast cooling on demulsification were studied. The result showed that initial COD did not affect the process obviously, and heat exchange of inlet and outlet water was feasible to save energy. The three treatment processes acidification, direct microwave irradiation and microwave - assisted demulsification were compared. The result showed that microwave technology of assisted demulsification was effective in combination with sulfuric acid, and there was a synergistic effect between H^＋ and microwave energy accelerating the demulsification process.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2007年第8期1233-1235,共3页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50278023)
高等学校博士学科点专项科研基金资助项目(20040213027)
黑龙江省自然科学基金资助项目(E0211)
关键词
乳化废水
微波辐射
破乳
emulsion wastewater
microwave irradiation
demulsification
