Wastewater from aquacultural drainage river, which waslocated in Songjiang Modern Agricultural Ecological Park(Shanghai, China), was selected as objective in the presentstudy. The length and width of the selected aquacultural drainageriver were 600 m and 6.5 m, respectively. The average water depthwas 1.2 m, and the highest water depth could reach 1.65 m whenbreeding peak arrived. The bank of river was totally hard cement,the average length of bank was 4 m, and the slope angle was 45◦.There was a water outlet in every aquacultural pond, throughwhich the wastewater in aquacultural ponds could drain away tothe selected river and the average amount of inlet aquaculturewastewater was 2590 m3/d.