杨  菁¹，倪  琦^1，2，徐  皓¹，宋红桥²
（1 中国水产科学研究院渔业机械仪器研究所，上海 200092；
2 中国水产科学研究院渔业水体净化技术及系统研究重点开放实验室，上海 200092）

摘要： 设计一种超声系统实验装置进行超声工艺参数下的养鱼污水有机物降解性能试验和原水pH、溶氧量变化对养鱼污水有机物去除率影响试验，结果表明，养鱼污水经频率20 kHz、声强0.1 w/cm2超声辐照3min，COD去除率可达27.5%；对pH5.5～8.5、溶解氧6.5 mg/L以上的养鱼污水，超声技术降解对其有机物性能没有影响；经超声辐照后的养鱼污水，其有机污染物质更易被曝气生物去除。

关键词：超声辐照；养鱼污水；有机物；降解

Study on the ultrasound technical degeneration of the breed fish sewage

YANG Jing¹，   NI Qi ^1,2，  XU Hao¹，  SONG Hong –qiao ²
(1 Fishery Machinery and Instrument Research Institute, CAFS，Shanghai 200092, China;
2  Key laboratory of fishery water treatment, CAFS，Shanghai 200092, China）

Abstract :  The ultrasound technology was applied to breed fish sewage disposal. Degradation the test through the experimental provision that is designed, explore getting rid of rate to the organic under different crafts parameter; It influences and studies its getting rid of rate to launch original water pH, dissolved oxygen quantity change and organic matter; and organize discussion to the distributed characteristic of breed fish sewage organic matter molecular weight around experiment. The result shows : When the breed fish sewage is at frequency 20kHZ、acoustic intensity 0.1W/cm2 supersonic shines 3 minutes, COD get rid of rate is up to 27.5%; It doesn’t influence variously the COD in certain scope original water pH value,  but the dissolved oxygen quantity change has certain influence to the COD get rid of rate; the polluted organic matter from ultrasound exposured breed fish sewage is much easier got rid of by aeration biology.

Key words :  ultrasound exposure；breed fish sewage；organic matter；degradation

                                       （摘自《渔业现代化》 2008，35（4），28-31）