Low-temperature anaerobic treatment device for industrial wastewater

The utility model relates to a low-temperature anaerobic treatment device for industrial wastewater. The low-temperature anaerobic treatment device is suitable for treating the industrial wastewater, including chemosynthesis pharmaceutical wastewater, fine chemical production wastewater, textile industrial wastewater, washing industry wastewater and Lurgi furnace process wastewater, and is suitable for treating the wastewater, of which the influent COD (Chemical Oxygen Demand) concentration is lower than 10000mg/L, the TDS (Total Dissolved Solid) is lower than 6000mg/L, and the wastewater temperature is not below 15 DEG C. The low-temperature anaerobic treatment device mainly comprises a low-temperature anaerobic hydrolysis unit and a wastewater reflux system and is used for solving the problem that the traditional anaerobic reactors need to operate in a manner of being maintained in a stable temperature range. According to the low-temperature anaerobic treatment device, aiming at the practical conditions that a typical industrial wastewater anaerobic system difficultly achieves stable high efficiency and particularly the efficiency is decreased obviously during the rapid lowering of temperature, the aims of lowering wastewater heating temperature and maintaining efficient reaction efficiency are achieved through arranging the low-temperature anaerobic hydrolysis unit. The treatment technology provided by the utility model is efficient, is simple in operation and strong in adaptability and is an industrial-wastewater low-temperature anaerobic technology with development potential.