Water pump-driving baffling internal circulation bioreactor and use method thereof
A bioreactor, driven technology, applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems of secondary pollution, high energy consumption, large amount of sludge, etc. Ease of operation and the effect of reducing the amount of production
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[0044] Example 1:
[0045] The zigzag internal circulation bioreactor driven by the water pump 10 continuously treats certain industrial wastewater. The ammonia nitrogen concentration of the wastewater is 20~25mg·L -1 , The total nitrogen concentration is about 35mg·L -1 , NaCl concentration is 3000~8000mg·L -1 range. The wastewater basically does not contain bioavailable organic carbon sources. Before treatment, the activated sludge is taken for domestication and culture, and then the sludge containing halophilic microorganisms is inoculated into the reactor, and within 24 hours, a highly active biofilm is formed on the baffle. During the treatment, glucose solution or methanol is added proportionally from the feed port 6 as an external organic carbon source to treat high-salinity wastewater. The reactor can make the removal efficiency of ammonia nitrogen reach more than 99% and the total nitrogen removal rate reach more than 75% within the residence time of 3 hours.
Example Embodiment
[0046] Example 2:
[0047] A pump-driven baffled internal circulation bioreactor is used for the bioremediation of urban river water. The concentration of ammonia nitrogen in river water is 5~20mg·L -1 , The total nitrogen concentration is 10~35mg·L -1 , The river water is pumped into the reactor, and the intermittent operation mode is adopted. The water in the reactor is replaced 1 to 2 times a day. After about 5 days of operation, a very active biofilm can be formed. Then start continuous operation. In continuous operation, control the inlet water flow to make the hydraulic retention time within 1 to 5 hours, the removal rate of ammonia nitrogen in the water reaches more than 99%, and the removal of total nitrogen reaches more than 85%.
Example Embodiment
[0048] Example 3:
[0049]The effluent of the municipal sewage treatment plant is continuously and deeply treated by using a pump-driven baffled internal circulation bioreactor. The effluent treated by the municipal sewage treatment plant has an ammonia nitrogen concentration of 10~15mg·L -1 , The total nitrogen concentration is 20~30mg·L -1 , The total phosphorus concentration is 0.5~1.0mg·L -1 , The effluent is continuously input into the reactor, and the flow rate of the influent is controlled to make the hydraulic retention time within 1 to 2 hours. During the operation, the flocculant is continuously added in proportion to the reactor. The removal rate of ammonia nitrogen in the water is Reach over 90%, the removal of total nitrogen can reach over 80%, and the removal rate of total phosphorus can reach over 75%. The effluent from the reactor can be reused as reclaimed water after being sterilized.
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