Composite bioreactor for treating high-concentration hardly-degradable waste water

Abstract

This invention relates to a compound biological reactor for processing waste water with high concentration and difficult to be degraded composed of a fixed biological reaction region, an integrate degradation region and a deposition region, in which, there are engineering bacterium in the biological reaction region, a water inlet, air inlet and a mud discharge port are set at the bottom and an exhaust hole is at the top, the air inlet is connected with an air inlet pipe and an aeration head, multiple guide holes are parallel on the upper part of the outside wall of the region connected with the integrate degradation region with mixed bacterium in it filled with fillings, aeration strips are set at the bottom, multiple liquid guide grooves are set at the middle of the outside wall, ring bubble blocking plates are set below the grooves and multiple mud refluent grooves are set at the bottom connected with the deposition region together with the liquid guide grooves, an outfall is set at the upper part of the deposition region and a mud exhaust is set at the bottom.

Description

technical field [0001] The invention belongs to equipment for treating wastewater by using a bioreactor, in particular to a composite bioreactor for treating high-concentration refractory wastewater. Background technique [0002] A large amount of high-concentration and refractory organic wastewater will be produced in the process of industrial production. If these organic wastewater is directly discharged into the environment without effective treatment, it will have a serious impact on human health and the ecological environment. At present, how to treat high-concentration refractory organic wastewater economically and efficiently is a hot and difficult point in the field of water treatment. Researchers at home and abroad have improved and strengthened the treatment effect of high-concentration refractory organic wastewater from various aspects such as improving the treatment process, adding high-efficiency microorganisms, and implementing cleaner production, so as to achi...

AI Technical Summary

Problems solved by technology

However, engineering bacteria have strong selectivity and specificity for substrates, and the degradation rates of engineering bacteria show obvious differences for different types of pollutants.

When the composition of the actual wastewater is complex, it is difficult to effectively degrade all pollutants at the same time only by relying on the degradation of engineering bacteria

In addition, the loss of engineering bacteria will also bring environmental biosafety problems

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