Simple and energy-saving sewage biological denitrification device

摘要: The invention discloses a simple and energy-saving sewage biological denitrification device, which comprises self priming type pump, gate valves, an ejector, pipes, spray anoxic tank aerobic nitrification tank, wherein the water inlet pipe of pump is communicated with tank; outlet connected two pipes; one first runs down vertically along wall then arranged length direction bottom ofthe valve ejector are in pipe; other led to first, provided valve. With structure, device combines functions charging oxygen into stirring refluxing solution, can effectively reduce energy consumption treatment systems, improve operation stability make overhaul system easier.