34results about How to "No bloating issues" patented technology

The invention relates to a step-feed biological nitrogen removal and sludge decrement coupling bioreactor and a process thereof, belonging to the field of sewage treatment and aiming to overcome the technical defect that the sludge output is large, and the total nitrogen removal effect of sewage with a low carbon-nitrogen ratio is poor. The bioreactor sequentially comprises a biological reaction area and a secondary clarifier, wherein a biological reaction area sequentially comprises an aerobic area, an anoxic area, an aerobic area, an anoxic area, an aerobic area, an anoxic area, an aerobic area and an anoxic area, and the volume ratio of each aerobic area to each anoxic area is (1.5:1)-(2:1); a porous carrier is arranged inside the biological reaction area; the carrier filling volume ratio of the aerobic areas is 40-60 percent, and the carrier filling volume ratio of the anoxic area is 90-100 percent; and all the areas are respectively provided with a baffle plate. The bioreactor is divided into three water inlet stages, the secondary clarifier is provided with a water outlet pipe and a sludge discharge pipe, and backflow sludge is conveyed to the aerobic areas O-I through a pump. The TN removal ratio of the bioreactor is 75.3 percent, the COD removal ratio is 94.3 percent, and the sludge productivity is 0.102kgMLSS / kgCOD.

The invention discloses a novel alloy electrode and a sodium ion battery thereof. A large number of holes are made on an antimony alloy by a special method. When the antimony alloy is used as a negative electrode for sodium ions, the sodium ions enter the inside of the electrode along the holes after charging and come out of the holes when discharging. , and return to the positive electrode through the electrolyte, so as to store sodium ions to complete the battery charge and discharge function. Using sodium-based Prussian blue as the positive electrode material and the porous antimony alloy of the present invention as the negative electrode material, the porous antimony alloy negative electrode sheet is prepared by slurry mixing, coating, rolling, and slitting, and is laminated, welded, packaged, and baked , liquid injection, formation, and volume separation to obtain a sodium ion battery. In the present invention, the sodium metal and the metal electrode are first fused, and then the sodium is removed, leaving a large number of holes on the electrode. Since these holes are originally used to store sodium, when the sodium ion battery is charged, sodium can effectively re-enter these holes. Therefore, there is no expansion problem of the electrode, and the prepared sodium ion battery has excellent electrical performance and safety performance.

This invention relates to one column polyethylene laminated film flexible lithium ion accumulator, which is characterized by the following: the shell is of polyethylene compound film packing column part; using compound metal oxidation and its compound as positive electrode materials free of imbedded lithium ion; using imbedded and removed lithium ion materials and its compound materials as negative materials and using aluminum foil as positive slice and carbide as negative materials and copper and nickel as negative slices; overlapping the isolated film, negative slices to form one column electrode board core and its outside fixed band; two end positive and negative electrode handles are parallel at one central line.

The invention relates to a method for treating wastewater and discloses a method for treating wastewater in an automobile manufacturing plant. A method of pretreatment, two-stage physicochemical treatment, biochemical treatment and advanced treatment is adopted to treat wastewater. The method for treating wastewater in the automobile manufacturing plant has little investment, small occupied area and low operating cost and has good integrated treatment effect on industrial wastewater and domestic sewage discharged from the automobile manufacturing plant.

The invention discloses a method for treating wastewater by using a carrier fluidized biomembrane reactor. The method comprises the following steps: sequentially treating wastewater to be treated in a biochemical reaction tank, a mixing tank and a precipitation tank, discharging a supernatant in the precipitation tank, and returning at least parts of sludge at the bottom of the precipitation tank to the biochemical reaction tank, wherein active carbon is added to water discharged from the biochemical reaction tank, and the active carbon and the discharged water are uniformly mixed in the mixing tank. The method can effectively reduce the content of suspensions in water finally obtained after treatment, and also has the advantages of excellent wastewater treatment effect, fast biomembrane formation speed, strong impact resistance, good treatment effect, and convenient running and management.