Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (4): 754-759.

• 能源、资源与环境技术 • 上一篇    下一篇

超声波与过氧化氢联合法降解偶氮二甲酰胺工业废水中的有机氨氮

李文军1,2; 吴笛1; 石鑫1; 文利雄1; 邵磊1   

  1. 1 State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China 2 Chemical Industry Productivity Promotion Center of China, Beijing 100723, China
  • 收稿日期:2011-11-28 修回日期:2012-06-18 出版日期:2012-08-28 发布日期:2012-06-18

Removal of organic matter and ammonia nitrogen in azodicarbonamide wastewater by a combination of power ultrasound radiation and hydrogen peroxide

LI Wenjun1,2; WU Di1; SHI Xin1; WEN Lixiong1; SHAO Lei1   

  1. 1 State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China 2 Chemical Industry Productivity Promotion Center of China, Beijing 100723, China
  • Received:2011-11-28 Revised:2012-06-18 Online:2012-08-28 Published:2012-06-18

摘要： A simple and efficient sonochemical method was developed for the degradation of organic matter and ammonia nitrogen in azodicarbonamide wastewater. The effects of initial pH, ultrasound format and peripheral water level on the sonolysis of hydrazine, urea, COD and ammonia nitrogen were investigated. It is found that the initial pH has a significant influence on the degradation of hydrazine and ammonia nitrogen, whereas this impact to urea is relatively small. It also shows that a noticeable enhancement of ammonia nitrogen removal could be achieved in a proper intermittent ultrasound operation mode, i.e., 1/1 min on/off mode. The height difference between the periph-eral water level and the inner water level of the flask affects the efficiency of ultrasonic treatment as well.

关键词: azodicarbonamide wastewater, organic matter, ammonia nitrogen, ultrasound radiation, hydrogen peroxide

Abstract: A simple and efficient sonochemical method was developed for the degradation of organic matter and ammonia nitrogen in azodicarbonamide wastewater. The effects of initial pH, ultrasound format and peripheral water level on the sonolysis of hydrazine, urea, COD and ammonia nitrogen were investigated. It is found that the initial pH has a significant influence on the degradation of hydrazine and ammonia nitrogen, whereas this impact to urea is relatively small. It also shows that a noticeable enhancement of ammonia nitrogen removal could be achieved in a proper intermittent ultrasound operation mode, i.e., 1/1 min on/off mode. The height difference between the periph-eral water level and the inner water level of the flask affects the efficiency of ultrasonic treatment as well.

Key words: azodicarbonamide wastewater, organic matter, ammonia nitrogen, ultrasound radiation, hydrogen peroxide

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