Tech. for treating waste water of fruit juice processing

[0022] figure 1 This is a process flow chart of the juice processing wastewater treatment process of the present invention, which specifically includes the following process steps:

[0023] 1. The wastewater flows into the regulating tank first, which is equipped with a stirrer, and the wastewater is fully stirred to achieve a balanced water quality and quantity;

[0024] 2. The water treated in step 1 enters the air flotation tank, and is degummed by the air flotation process to remove suspended solids. In this embodiment, the air flotation degumming process uses a direct ultra-fine air flotation machine, and the hydraulic retention time is generally 0.5 to 1 hour. Directly remove more than 80% of suspended matter and about 40% of organic matter;

[0025] 3. The water treated by the air flotation process enters the anaerobic reaction tank, which is equipped with an upflow anaerobic sludge bed reactor, through anaerobic fermentation and decomposition, to further reduce the organic m