Removal of Organic Matter and Ammonia Nitrogen in Azodicarbonamide Wastewater by a Combination of Power Ultrasound Radiation and Hydrogen Peroxide

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (4): 754-759.

• ENERGY, RESOURCES AND ENVIRONMENTAL TECHNOLOGY • Previous Articles Next Articles

Removal of Organic Matter and Ammonia Nitrogen in Azodicarbonamide Wastewater by a Combination of Power Ultrasound Radiation and Hydrogen Peroxide

LI Wenjun^1,2, WU Di¹, SHI Xin¹, WEN Lixiong¹, SHAO Lei¹

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:2012-09-15 Published:2012-08-28
Supported by:
Supported by the National Natural Science Foundation of China (21121064,20990224);National Science and Technology Ministry of China (2008BAE64B02)

Removal of Organic Matter and Ammonia Nitrogen in Azodicarbonamide Wastewater by a Combination of Power Ultrasound Radiation and Hydrogen Peroxide

李文军^1,2, 吴笛¹, 石鑫¹, 文利雄¹, 邵磊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

通讯作者: WEN Lixiong, E-mail:wenlx@mail.buct.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (21121064,20990224);National Science and Technology Ministry of China (2008BAE64B02)

Abstract

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.,l/l 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

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.,l/l 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

LI Wenjun, WU Di, SHI Xin, WEN Lixiong, SHAO Lei. Removal of Organic Matter and Ammonia Nitrogen in Azodicarbonamide Wastewater by a Combination of Power Ultrasound Radiation and Hydrogen Peroxide[J]. Chin.J.Chem.Eng., 2012, 20(4): 754-759.

李文军, 吴笛, 石鑫, 文利雄, 邵磊. Removal of Organic Matter and Ammonia Nitrogen in Azodicarbonamide Wastewater by a Combination of Power Ultrasound Radiation and Hydrogen Peroxide[J]. Chinese Journal of Chemical Engineering, 2012, 20(4): 754-759.

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Removal of Organic Matter and Ammonia Nitrogen in Azodicarbonamide Wastewater by a Combination of Power Ultrasound Radiation and Hydrogen Peroxide

Removal of Organic Matter and Ammonia Nitrogen in Azodicarbonamide Wastewater by a Combination of Power Ultrasound Radiation and Hydrogen Peroxide

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