6 results about "Internal circulation reactor" patented technology

A combined reaction device for cultivating aerobic granular sludge and its operation method, comprising a reactor main body. The reactor main body includes four air-lift internal circulation reactors, and each air-lift internal circulation reactor is respectively provided with a water inlet, an aeration head, a sludge discharge port and a water outlet. The aeration head of the air-lift internal circulation reactor is communicated with an aeration system; the reactor main body includes four operation stages, and each operation stage includes three processes: water inlet, aerobic closed aeration and sedimentation water outlet. The four air-lift internal circulation reactors operate symmetrically and alternately in each operation stage. This device can in-situ cultivate activated sludge into aerobic granular sludge, taking into account the continuous flow and non-intermittent operation characteristics, and is not easy to damage the particle structure when air-lifting and refluxing sludge.

The present invention discloses a method and system for treating coal gasification wastewater, including: sending coal gasification wastewater into a decyanation reaction tank, and performing decyanation treatment by adding an oxidant; the effluent of the decyanation reaction tank enters a reduction reaction tank, and performs reduction treatment by adding a reducing agent; the effluent of the reduction reaction tank enters a gas stripping internal circulation reaction tank, and ammonia nitrogen is oxidized into nitrite by microorganisms; the effluent of the gas stripping internal circulation reaction tank is subjected to separation, and the effluent after separation enters a nitrification and denitrification system, and the remaining COD, NH3-N and TN are removed under the condition of adding a carbon source to achieve standard effluent; the residual sludge generated by the reduction reaction tank, the gas stripping internal circulation reaction tank and the nitrification and denitrification system is dehydrated, and the sludge dewatering supernatant is returned to the regulating tank. The present invention adopts a combination of pretreatment+high-efficiency gas stripping internal circulation reactor+deep nitrification and denitrification system, so as to be able to efficiently remove pollutants, achieve energy saving and carbon reduction and meet emission standards.

The invention discloses a coal gasification wastewater treatment method and system, and the method comprises the following steps: feeding coal gasification wastewater into a decyanation reaction tank, and adding an oxidizing agent for decyanation treatment; feeding effluent of the decyanation reaction tank into a reduction reaction tank, and adding a reducing agent for reduction treatment; effluent of the reduction reaction tank enters a gas stripping internal circulation reaction tank, and ammonia nitrogen is oxidized into nitrite through microorganisms; the effluent of the gas stripping internal circulation reaction tank is separated, the separated effluent enters a nitrification and denitrification system, and the residual COD, NH3-N and TN are removed under the condition of adding a carbon source, so that the effluent reaching the standard is realized; excess sludge generated by the reduction reaction tank, the gas stripping internal circulation reaction tank and the nitrification and denitrification system is dewatered, and sludge dewatering supernate is returned to the adjusting tank. According to the invention, the combination of pretreatment, the efficient gas stripping internal circulation reactor and the deep nitrification and denitrification system is adopted, so that pollutants can be efficiently removed, and energy conservation, carbon reduction and up-to-standard emission are realized.

The utility model provides an internal circulation type reactor, which is characterized in that a gas phase, a liquid phase or a solid-liquid mixed phase is uniformly distributed in the reactor by optimizing the number and position distribution of sub-gas inlets and sub-feed ports of the reactor, and the openings of the sub-feed ports are designed to be upward, so that the gas phase, the liquid phase or the solid-liquid mixed phase is uniformly distributed in the reactor. Under the combined action, the liquid phase or the solid-liquid mixed phase realizes inner circulation type feeding in which the outer side ascends and the center descends in the reactor, and the retention time of the liquid phase or the solid-liquid mixed phase in the reactor is prolonged, so that the interaction effect of the gas phase and the liquid phase or the solid-liquid mixed phase is improved, and the efficiency of physical and chemical reaction in the reactor is improved.

The application discloses a direct air carbon capture device and method suitable for renewable energy, and belongs to the technical field of carbon capture. The application adopts a double-helix winding type multi-channel internal circulation reactor, a central diffusion type air inlet pipe with a hole distribution is matched with a guide plate to realize multi-pass contact of gas; modified conductive adsorption filaments take carbon fibers as a substrate, are modified by graphite doped porous silicon dioxide coating and polyethylene imine impregnation, and high conductivity and high adsorption capacity are considered; direct Joule heating and vacuum assisted desorption are combined to realize rapid heating and desorption; a detection control system adjusts a heating voltage and a vacuum degree in real time according to energy supply fluctuation, compensates for insufficient energy supply, and guarantees stable desorption efficiency. The application has the advantages of rapid response, short cycle time and self-adaptive energy supply fluctuation, and is suitable for direct air carbon capture driven by renewable energy.

The utility model relates to the technical field of sewage treatment, in particular to an anaerobic granular sludge internal circulation reactor which comprises a reactor body, a filter mechanism is fixedly connected to a water outlet of the reactor body, and a drain pipe is mounted at the top of the filter mechanism; the filter mechanism comprises a fixed sleeve fixedly connected to the outer wall of the reactor body, a mounting frame is slidably connected to the interior of the fixed sleeve, an adsorption plate is fixedly connected to the interior of the mounting frame, and a filter screen is fixedly connected to the position, close to the adsorption plate, of the interior of the mounting frame. Driving shafts are rotationally connected to the positions, on the front face, the back face and the two sides of the adsorption plate, of the interior of the mounting frame, and by designing the anaerobic granular sludge internal circulation reactor, flowing-out clear water is filtered and treated through a filtering mechanism in the device; the problem that filtering equipment arranged at a water outlet of an existing anaerobic granular sludge internal circulation reactor is generally fixedly installed and is inconvenient to disassemble and replace is solved.