3 results about "Biochemical reactions" patented technology

The invention discloses a micro-charge sewage treatment method, which comprises the following steps of: feeding the sewage into a water distributor through a water inlet, and implementing aeration treatment; conveying the sewage to the bottom layer of a reaction tank through the bottom of the water distributor, and forming an aerobic layer, an anoxic layer, an anaerobic layer and a natural breath layer for a biochemical reaction in the reaction tank from bottom to up by the sewage; conveying the sewage of the natural breath layer on the upper layer of the reaction tank to a micro-charge water groove by a flow impeller, wherein the sewage forms pool flow and participates in a reaction in the micro-charge groove; placing a metal medium and a neutral conductive connecting terminal in the sewage, electrically connecting the metal medium to the positive electrode of a direct current power supply and connecting the neutral conductive connecting terminal to the negative electrode of the direct current power supply, in order to form an electric loop; after the pool flow reaction in the micro-charge water groove, refluxing the sewage into the water distributor of the step 1; and treating the sewage from the step 1 to the step 5 in a circular manner, and discharging the sewage until the quality of the treated sewage meets the demand. Therefor, the problem of generation of a great amount of organic sludge is solved, and the secondary pollution is relieved.

The invention provides a biochemical tubular reactor for water treatment. The biochemical tubular reactor for water treatment is suitable for sewage treatment and can solve the problems that in a biological method water treatment device, the effective microorganism concentration is low, the contact efficiency of microorganisms and sewage is low, and the biochemical reaction controllability is poor. The biochemical tubular reactor for water treatment comprises a tank body which is connected with a water inlet tube, and biochemical tubular reaction units are arranged in the tank body; the biochemical tubular reaction units comprise working tubes which are sequentially connected through connecting tubes, sewage treatment units are arranged in the working tubes, water inlets of the working tubes are formed in the tank body, and water outlets of the working tubes stretch out of the tank body through a water outlet tube. According to the biochemical tubular reactor for water treatment, reactor technology conditions are controllable, the flow velocity and the water distribution uniformity are improved, the strain utilization rate is promoted to be increased, and the sewage and strains are mixed and contacted fully; the effect that pollutants are removed by means of the microorganisms is significantly enhanced, biomass is increased, the activity of the biomass is improved, physical conditions and biochemical conditions of technology operation are guaranteed, and efficiency improving and consumption reducing of a system are achieved.

The invention discloses a biochemical treatment method and device for benzo (a) pyrene in coking wastewater. The method comprises the following steps: S1, introducing coking wastewater into a homogeneous regulation device for homogeneous regulation to obtain first effluent; s2, the first effluent obtained in S1 is introduced into an oil separation device for oil separation treatment, and second effluent is obtained; s3, introducing the second effluent obtained in S2 into a coagulating sedimentation device for coagulating sedimentation treatment to obtain third effluent subjected to coagulating sedimentation treatment; s4, the third effluent obtained in S3 is introduced into a filtering device for filtering treatment, and fourth effluent obtained after filtering treatment is obtained; s5, introducing the fourth effluent obtained in S4 into an MBR (Membrane Bioreactor) for biochemical reaction to obtain fifth effluent and reacted activated sludge; and S6, introducing the fifth effluent obtained in the step S5 into an adsorption device for adsorption treatment. The device is high in activated sludge concentration, simplified in structure and small in occupied area, and the production and manufacturing cost and the use and operation cost of the benzo (a) pyrene-containing sewage treatment device can be reduced.