4results about How to "Improve phosphorus removal efficiency" patented technology

The invention relates to a bacillus altitudinis ZT61 (bacillus altitudinis ZT61) with an aerobic denitrifying and phosphorus accumulating function and application of the bacillus altitudinis ZT61 in treatment of wastewater with high nitrogen content and phosphorus content. The strain has the capability of synchronously removing ammonia nitrogen and phosphorus, can finally convert nitrogen pollutants into gas products, is suitable for treating high-nitrogen-content organic wastewater, has obvious environmental adaptability and interspecific competitive advantages, can efficiently grow at 15-35 DEG C, and can remove nitrogen and phosphorus. Compared with a traditional denitrification process, the strain is high in denitrification efficiency, low in energy consumption, simple to operate and high in stability, and application of the strain provides a certain basis for sewage treatment.

This invention relates to the field of wastewater treatment technology and discloses a phosphate wastewater purification and treatment device, including a reboiler with an inner cavity containing a feed chamber and a reaction chamber. The feed chamber is equipped with a connecting pipe and a flow control system, and the reaction chamber contains a float that can rise and fall with the liquid level. The rise and fall of the float triggers the opening and closing of the flow control system, realizing the automatic proportioning and dosing of wastewater and reagents. When the liquid flow converges, the air bladder ring rises with the liquid level, automatically triggering the valve plate to close the inlet and the shut-off valve rod to insert into the throat, cutting off the feed channel. When the liquid level drops, the air bladder ring falls back, triggering the valve plate to open the inlet and the shut-off valve rod to exit the throat, reopening the feed channel. This invention achieves automatic proportioning and dosing without manual intervention, reducing the operational burden and safety risks, avoiding reagent waste and incomplete reaction, and improving the stability and reliability of the phosphorus removal reaction.

The utility model relates to a cold-rolled strip steel phosphorus removal device, including strip steel, work table, the placement module and the phosphorus removal module of being located on work table, and the strip steel is located between the placement module and the phosphorus removal module, and the work table is located below the strip steel and is provided with the liquid storage pool, still include the friction module of being located in the rear side of phosphorus removal module, and the friction module includes the upper brush and lower brush of being located in the upper and lower sides of strip steel, and the placement module includes front support roller, rear support roller, the front mounting seat and rear mounting seat of being placed into for front support roller and rear support roller, and the number of front mounting seat and rear mounting seat is two and is respectively located in the left and right sides of front support roller, rear support roller, and the front pressing part is slidably installed on each front mounting seat top, and the rear pressing part is slidably installed on each rear mounting seat top. Adopt above -mentioned scheme, provide a kind of cold-rolled strip steel phosphorus removal device by moving strip steel so that the surface of strip steel after phosphorus removal module can be subjected to the friction of upper and lower brush and then assist the falling of thick oxide layer.

This invention relates to an apparatus and method for rapidly inhibiting nitrite-oxidizing bacteria to achieve deep nitrogen and phosphorus removal in urban wastewater, belonging to the field of biological wastewater treatment. The apparatus includes an influent reactor unit, an influent unit, an aeration unit, and an effluent unit. The method operates a short-cut nitrification / anaerobic ammonium oxidation system with low nitrogen and phosphorus removal efficiency due to the proliferation of nitrite-oxidizing bacteria in an anaerobic-aerobic-anoxic mode. By controlling the aerobic and anoxic time distributions, the nitrite accumulation rate in the aerobic section of the system is rapidly increased, reducing the total nitrogen and phosphate content in the effluent. This invention, by changing the operating mode, rapidly inhibits nitrite-oxidizing bacteria, improves the nitrogen and phosphorus removal efficiency of the short-cut nitrification / anaerobic ammonium oxidation system operating in an anaerobic-aerobic-anoxic mode, achieves deep nitrogen and phosphorus removal in urban wastewater with a low C / N ratio, and ensures stable operation. The operation and control are simple, requiring no external energy, thus saving energy and reducing consumption.