39results about How to "Improve biological reaction efficiency" patented technology

A bioreactor vessel has a biological support provided within the vessel to support bacteria and a drive system for agitating the biological support while it is it is immersed in the reaction liquor that is to be treated within the vessel. The drive system causes the biological support to oscillate with a reciprocating or rectilinear motion and the drive system is preferably located either outside the vessel or within a portion of the vessel that is above the level of reaction liquor present therein.

The invention relates to a modified nm SiOx compound polyurethane foam and its preparing method and application. The foam is made by adding modified SiOx nm particle in the foaming course of polyurethane, can be used as carrier for fixing microbe, its surface effect cooperation with SiOx particle nm effect will generate super strong absorption. Reactive functional group contained in the modified SiOx particle will form valence bond with foam frame and join in its net structure, which has strengthened its distribution stability in the carrier as well as legally fixed microbe by carrier compounding method. The modified nm SiOx compound polyurethane foam has hydrophily micro environment which is benefit for fixing metabolism and proliferation of microbe, can increase biological load so as to raise the biological reacting efficiency, meanwhile, the strengthening effect of modified nm particle and its strength to the structure will advance the physical as well as chemical performance of foam carrier, enabling it with outstanding resistance to impact.

The invention discloses an anoxic fluidized bed device for treating high-concentration nitrate-nitrogen wastewater, which comprises: a feed tank, an anoxic fluidized bed, a nitrogen generator system and a nitrogen outlet distributor; an anoxic fluidized bed It includes a packing area, a transition section and a water outlet area arranged in sequence from bottom to top, and a three-phase separator is arranged in the water outlet area; a water inlet is provided at the bottom of the anoxic fluidized bed, and above the water inlet, A water flow distributor is provided under the filling area, and a water outlet is provided on the upper part of the water outlet area; the feed tank is connected to the water inlet of the anoxic fluidized bed through the feed pipe; the nitrogen generator system is connected to the nitrogen outlet distributor through the inlet pipe The nitrogen outlet distributor is located in the filling area of ​​the anoxic fluidized bed, and the position of the nitrogen outlet distributor in the anoxic fluidized bed can be adjusted. The device provided by the present invention sets the position of the nitrogen outlet distributor according to the needs, so as to realize the directional positioning and precise film removal.

The invention discloses a microbiological inoculation device and a method for treating micro-polluted water by the microbiological inoculation device, and relates to the technical field of microbiological inoculation. The microbiological inoculation device comprises an ozone aeration tower, an industrial ozone generator, a porous ceramic catalyst unit, an ultraviolet catalyst unit, an inoculant tank, a culture solution tank, an inoculation biology filtration column, an air bottle and a biological filter chamber, an aeration tray is arranged at the inner bottom of the ozone aeration tower, the industrial ozone generator is communicated with the aeration tray in the ozone aeration tower, an outlet in the bottom of the ozone aeration tower is communicated with an inlet of the porous ceramic catalyst unit, an outlet of the porous ceramic catalyst unit is communicated with an inlet of the ultraviolet catalyst unit, and an outlet of the ultraviolet catalyst unit is communicated with a water pump I. The method includes the steps: firstly, ozone ultraviolet catalysis; second, bacterial inoculation and biodegradation treatment. The method solves the problems that nutrient substances in the micro-polluted water are insufficient, inoculated bacteria are easily affected by indigenous bacteria, and the method is used for treating the micro-polluted water.

The present invention relates to nanometer magnetic fluorescent microsphere and its preparation process and application. The nanometer magnetic fluorescent microsphere is one core-shell including core of Eu3+Y-Fe2O3 compound, shell of SiO2 coated fluorescent material and surface modifying organic functional group. It is prepared through reverse micro emulsion process to synthesize nanometer particle, and the subsequent surface chemical modification to become magnetic nanometer particle capable of combining with probe. The nanometer magnetic fluorescent microsphere is used as biological research tool with integrated fluorescent indication and magnetic separation, and may have important application in biomicromolecule detection, medical diagnosis and other fields.

The invention discloses an up-flow anaerobic biological reaction / precipitator used for wastewater treatment. The up-flow anaerobic biological reaction / precipitator is rectangular in shape; an integrated structure of the up-flow anaerobic biological reaction / precipitator comprises a reaction zone, a water distribution zone, a settling zone, a water inlet and backflow system, a water outlet system, and a sludge and gas discharge system; the reaction zone is arranged at the lower part of the up-flow anaerobic biological reaction / precipitator; the settling zone is arranged at the middle of the upper part of the up-flow anaerobic biological reaction / precipitator; the bottom of the settling zone is provided with a water distribution / sludge backflow system; the water distribution zone is arranged between the reaction zone and the settling zone; the water inlet and backflow system is arranged in the reaction zone; and the water outlet system is arranged at the upper part of the up-flow anaerobic biological reaction / precipitator and on the diagonal corners. Up-flow reaction conditions can be obtained using the up-flow anaerobic biological reaction / precipitator, and are beneficial for biological reaction process mass transferring; biological reaction efficiency is increased; after biological reaction, wastewater is subjected to precipitation in the integrated settling zone, sludge obtained via precipitation is delivered back to the reaction zone, and it is beneficial for maintenance of microbial biomass.

The invention discloses a method for improving the expression quantity of a pichia pastoris foreign recombinant protein by using mercaptan peroxidase as a cofactor aiming at improving the preparation capability of the pichia pastoris foreign recombinant protein, belonging to the field of biochemical engineering. The method comprises the steps of connecting a mercaptan peroxidase gene with an inducible promoter or a constitutive promoter from pichia pastoris or saccharomyces cerevisiae to construct a gene expression vector, and transferring the gene expression vector to a methanol induced pichia pastoris strain for expressing the foreign recombinant protein to perform co-expression or over-expression, wherein the mercaptan peroxidase gene serving as a global control gene of oxidation reduction stress response improves the expression quantity of the foreign recombinant protein in the methanol induced pichia pastoris under the control effects of the promoter of different strengths and the transcriptional level of a gene copy number. The invention provides a new method for improving the capability of producing recombinant protein by cells and the bio-reaction efficiency, which has an important value for strengthening a biotechnology process.

The invention relates to an anoxic fluidized bed device for treating industrial waste water. The device comprises an anoxic fluidized bed device main body (1), and a self-cleaning filter device (10) is established in the tower head (1-2) of the anoxic fluidized bed device main body (1), wherein the filter screen (25) The mesh diameter is slightly smaller than the diameter of the biological filler, which effectively prevents the biological filler in the main body (1) of the anoxic fluidized bed device from being discharged out of the circulation system, and the relative movement between the metal brush (23) and the filter screen (25) makes The sludge originally attached to the filter screen (25) is broken up and stripped to achieve the purpose of cleaning the filter screen (25), so that the long-term stable operation of the circulation system; the main body (1) of the anoxic fluidized bed device (1- 1) The water flow distributor (19) at the inner bottom effectively solves the problem of uneven water distribution in the main body (1) of the anoxic fluidized bed device, avoids short circuit of water flow, and increases the removal load of organic matter and nitrate.