62results about How to "Increase the concentration of microorganisms" patented technology

The invention belongs to a spiral flow pushing type domestic sewage purification device in the environmental protection field. The purification device is composed of an outer cylinder 8 and a central cylinder 11. A gas collecting hood 2 is arranged on the top of the outer cylinder 8, and a gas delivery pipe 1 is arranged on the gas collecting hood 2. A water distributing pipe 3 is arranged on the upper portion of the outer cylinder 8, and an inlet of the water distributing pipe 3 is connected with a sewage pipe. A spiral flow guiding plate is arranged in the outer cylinder 8 and is downwards coiled to the bottom of the outer cylinder 8 around the central cylinder 11. The top of the central cylinder 11 is higher than that of the outer cylinder 8, the bottom side of the central cylinder 11 is connected with a bottom plate of the outer cylinder 8, a central cylinder water inlet 5 is formed in the bottom of the central cylinder 11 and corresponds to the bottom of the spiral flow guiding plate 4, and a water outflow pipe 10 is arranged in the middle of the central cylinder 11 and lower than the water distributing pipe 3. A mud discharging pipe 14 is arranged on the bottom plate of the outer cylinder 8. The spiral flow pushing type domestic sewage purification device is high in effective capacity utilizing rate and purifying and treating efficiency and does not need additional power.

The invention discloses methane dry fermentation compound bacteria, which comprise 25% to 45% of cellulose decomposing bacteria, 9% to 15% of protein decomposing bacteria, 8% to 15% of fat decomposing bacteria, 8% to 12% of hydrogen-producing acetogenic bacteria, 18% to 31% of sulfate reducing bacteria and 2.5% to 9.5% of methanogenic archaea according to bacterium number percentages. The compound bacteria of microorganisms with a complete methane fermentation function are capable of processing methane dry fermentation raw materials with TS content as 20% to 30% and stable in methane production effect and apt to control methane production.

The invention relates to the technical field of sewage processing, and provides a garbage percolate processing technology. The technology comprises steps of coagulative precipitation, advanced catalytic oxidation, ammonia nitrogen stripping, combined biochemical processing, and the like. With the technology provided by the invention, ammonia nitrogen transformation rate and COD removing effect are greatly improved, garbage percolates at different stages can be effectively processed, and the processed percolates can all satisfy a discharge standard.

The invention discloses a method for strengthening amino benzenes production wastewater SBR biological treatment with synthesized macroporous high-molecular polymer as immobilization microbe. For the drawback of the prior microbe carrier, the invention provides a kind of synthesized high-molecular polymer as immobilization microbe, and applies it to strength amino benzenes production wastewater SBR biological treatment. Compared with prior SBR technique, when microbe carrier used is 2-10% of active volume of the reactor, and the technique condition such as aeration volume, reaction time and temperature equals, with the method, the clearance of amino benzenes materials improves by 35-60% and the concentration of ammonia nitrogen in water outlet decreases by 5-15mg / L. The invention can be applied for modifying the prior wastewater treatment device, or building new wastewater treatment device, having good economic profit and environmental benefit.