9results 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.

The invention discloses a compound agent for deep phosphorus removal of domestic sewage, a preparation method and a use method, and aims to solve the technical problem that the phosphorus removal effect of a current agent is unsatisfactory, the compound agent comprises polyaluminum ferric chloride and aluminum sulfate according to the ratio of 1%-10%: 90%-99%; the method comprises the step of uniformly mixing polyaluminum ferric chloride and aluminum sulfate, the use method comprises the following steps: (1) adding the compound agent into raw water to be treated in the efficient sedimentation tank of the domestic sewage treatment plant; mixing by using a stirrer; (2) adding a coagulant aid and stirring; (3) standing and precipitating, wherein supernate is treated water; the invention aims to optimize the phosphorus removal performance by scientifically proportioning two main components, namely PAFC (polyaluminum ferric chloride) and aluminum sulfate, overcome the defects in the prior art and realize a more efficient and economical phosphorus removal effect so as to meet the requirements on deep phosphorus removal in current and future domestic sewage treatment.

The enhanced phosphorus removal anaerobic device comprises a hollow tower body and a degassing device, a wastewater mixed solution with activated sludge enters a lower layer area of the hollow tower body, the mixed solution rises in the hollow tower body and enters a degassing cover, a stirring device is started, the output end of the stirring device rotates at a high speed, and the degassing cover is opened; the mixed liquid in the degassing cover generates centrifugal force due to high-speed rotation of the stirring device, a negative-pressure vortex is formed in the center of the mixed liquid, dissolved oxygen in the mixed liquid is separated upwards from the center of the vortex, the mixed liquid is dispersed around the vortex, an absolute anaerobic environment is formed in the mixed liquid, and phosphorus-accumulating bacteria in the sludge can be degraded due to the absolute anaerobic environment. The phosphorus-accumulating bacteria release all phosphorus in the body, the sludge and the wastewater which release all phosphorus are subsequently discharged into the aerobic tank, and because all phosphorus in the body is released by the phosphorus-accumulating bacteria, more phosphorus in the wastewater can be absorbed in the aerobic tank, so that the phosphorus absorption effect of the phosphorus-accumulating bacteria is enhanced, and the phosphorus removal efficiency of the whole system is improved.

The invention relates to a method for efficiently removing phosphorus from phosphorus tailing leaching wastewater, which comprises the following steps: adding calcium salt into the phosphorus tailing leaching wastewater, stirring for 5-10 minutes, fully reacting, and filtering to remove precipitate; then montmorillonite is added to adsorb pollutants, stirring is conducted for 5-10 min, full reaction is conducted, finally, the pH of a water sample is adjusted through a coagulant, standing and precipitation are conducted, total phosphorus is further reduced, meanwhile, other pollutants reach the standard and are discharged, and removal of the total phosphorus in the phosphorus tailing wastewater is completed. The dephosphorization agent used in the method is small in dosage and low in cost; the treatment process is simple and the action efficiency is high; meanwhile, the treatment effect on the high-phosphorus wastewater is good, no other pollutants are introduced, and the method is environment-friendly. After the stage treatment by the method, the total phosphorus in the phosphorus tailing leaching wastewater is rapidly reduced, and the wastewater discharge standard is reached.

The invention belongs to the field of microbial technology and environmental protection technology, and discloses a method for removing inorganic phosphorus from high-salinity wastewater by using a mixed community of marine biofilms. The method comprises collecting marine biofilm samples and culturing microorganisms; extracting DNA of the cultured strains for PCR amplification and Sanger sequencing to determine the classification of the isolates; annotating the genome of each strain to determine whether there is ppk1、ppk2 and pap Genes are used to determine whether it is a polyphosphate bacteria; bacterial strains with phosphorus removal ability are inoculated and cultured and the absorbance value is adjusted to obtain a mixed community of marine biofilms; the mixed community of marine biofilms is enriched and cultured with a seawater salt concentration culture medium (marine broth 2216E), and the phosphate removal efficiency of the mixed community is measured with a 2216E liquid culture medium with phosphate added. When the initial phosphorus concentration is 26.5 mg / L, the phosphorus removal efficiency of the present invention reaches 73.97% in 72 hours, providing a new direction for biological phosphorus removal.

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.

The high-pressure water dephosphorization device comprises a dephosphorization box, a placing piece, a downward pressing piece and a driving piece are arranged in the dephosphorization box, the placing piece is installed on an inner bottom plate of the dephosphorization box, the downward pressing piece is arranged on the side wall of the dephosphorization box, and the downward pressing piece and the placing piece are matched to fix a casting. The driving part and the downward pressing part are symmetrically arranged, the driving part is installed on the side wall of the side, away from the downward pressing part, of the dephosphorization box, a spraying mechanism is installed on the driving part, and the spraying mechanism comprises a fixing shaft, a worm, a worm gear, a rotating arm, a water pipe, a spraying head and a connecting hose. A casting can be fixed through mutual cooperation of the placing piece and the pressing piece, it is guaranteed that the casting is always in a stable state in the spraying and dephosphorization process of spraying water, the purpose of adjusting a spraying head can be achieved through arrangement of a worm gear, a worm, a fixing shaft and a rotating arm, it is guaranteed that the spraying head is always perpendicular to the surface of the casting, and the spraying efficiency is improved. And the dephosphorization efficiency and quality of the casting by the high-pressure water are improved.

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.