The operation time influence on the sauce wastewater treatment
With rapid development of food industry, the production of soybean sauce is increasing in recent years. The sauce wastewater is doing greater and greater harm to the water environment. In order to tackle this problem, the operation time on the sauce wastewater treatment were investigated. The results showed that the process has a better effect for ammonia nitrogen, the orthophosphate and COD removal. The effluent ammonia nitrogen was less than 5mg/L and the ammonia nitrogen removal efficiency could reach about 90% with the aeration time 2 h-3.5 h. The orthophosphate increased during the anoxic stage while decreased during the aerobic stage. At the end of the aerobic stage, the orthophosphate concentration and the COD could reach about lmg/L and 21 mg/L respectively when aeration time was 2 h-3.5 h. The better operation time (the aeration time) was at 2 h-3.5 h and the system could get a good water quality for sauce wastewater treatment.
Zhixiao Liu Jinlong Zuo
Capital Aihua (Tianjin) Municipal & Environmental Engineering Co., Ltd, Tianjin, 300060,China Department of Environmental Engineering, Harbin University of Commerce, Harbin 150076, China
国际会议
哈尔滨
英文
278-281
2011-03-26（万方平台首次上网日期，不代表论文的发表时间）