49results about How to "High accumulation rate" patented technology

The present invention relates generally to an electrical charge storage device (ECSD) with enhanced power characteristics. More particularly, the present invention relates to enhancing the current density, voltage rating, power transfer characteristics, frequency response and charge storage density of various devices, such as capacitors, batteries, fuel cells and other electrical charge storage devices. For example, one aspect of the present invention is solid state and electrolytic capacitors where the conductor surface area is increased with smooth structures, thereby reducing the distance separating the conductors, and improving the effective dielectric characteristics by employing construction techniques on atomic, molecular, and macroscopic levels.

The invention provides a device and a method for treating high-concentration nitrate wastewater and urban sewage by partial denitrification and anaerobic ammonia oxidation, and belongs to the field of sewage bio-treatment. Nitrate wastewater and urban sewage enter a partial denitrification reactor, nitrate is reduced into nitrite through heterotrophic denitrification strains by using biodegradable organic carbon sources in the urban sewage, effluent enters an anaerobic ammonia oxidation reactor, and ammonia nitrogen and nitrite in the urban sewage are subjected to anaerobic ammonia oxidation reaction to generate nitrogen. By adopting the device and the method, synchronous nitrogen removal of the high-concentration nitrate wastewater and the urban sewage is realized, additional carbon sources are not needed, the operational management is convenient, the operating cost is reduced, the consumption of energy is reduced, and the denitrification efficiency is high.

A water treatment system for producing a sodium hypochlorite solution to control bacteria levels in well water containing: a pH adjuster; a container containing solid calcium hypochlorite for producing a calcium hypochlorite solution; and a container containing solid sodium carbonate for producing the sodium hypochlorite solution and a method of controlling bacteria levels in well water by using intermittent injections of a sodium hypochlorite solution with alternating pH values.

The invention relates to the field of sewage treatment, in particular to a method for short-cut nitrification treatment of sewage. The short-cut nitrification sewage treatment method comprises the following steps: adding a short-cut nitrification accelerator into sewage, the short-cut nitrification accelerator comprising 2-30 parts by weight of inorganic hydroxyl amine and 0.1-20 part by weight ofinorganic ammonium salt; wherein the pH value of the sewage is 6.5-6.95. The short-cut nitrification sewage treatment method provided by the invention can significantly improve the nitrite accumulation rate, and controls the biological nitrification reaction at the stage with nitrite accumulation, thereby facilitating the sewage denitrification process, improving the wastewater treatment effect,and having good engineering application value.

The invention relates to a low-temperature low-ammonia-nitrogen sewage denitrification device based on a magnetocaloric effect coupling carrier. The low-temperature low-ammonia-nitrogen sewage denitrification device comprises a sewage treatment container, the magnetocaloric carrier in the sewage treatment container and a magnetic field generation device outside the sewage treatment container, wherein the magnetocaloric carrier is nano Fe3O4-loaded zeolite, and anaerobic ammonia oxidizing bacteria and nitrite bacteria grow in the magnetocaloric carrier and on the surface of the magnetocaloric carrier. According to the device, a one-stage Canon process is adopted, precise local controllable temperature rise can be realized through a magnetocaloric effect generated by an external medium-high frequency alternating magnetic field and zeolite-loaded nano Fe3O4, zeolite selectively adsorbs ammonia nitrogen to create a local high-nitrogen-carbon-ratio environment, and the device has targeted advantages for solving the problem of low-temperature low-ammonia-nitrogen sewage denitrification treatment, anaerobic ammonia oxidizing bacteria and nitrite bacteria are efficiently screened, the competitive advantages of the bacteria are kept, the microbial activity is efficiently improved with low consumption, and the capital construction and operation cost for sewage treatment is greatly reduced.

A method for quickly starting short-cut nitrification of domestic sewage comprises the following steps: (1) inoculating nitrification sludge into a short-cut nitrification system of the domestic sewage to enable the sludge concentration to be 2500-3500 mg / L; (2) recovering the metabolic activity of the inoculated sludge in a domestic sewage short-cut nitrification system under a low-temperature condition to complete activity recovery; (3) mixing the ferric oxide nano-particles or ferric trichloride with the domestic sewage under a low-temperature condition to enter a domestic sewage short-cut nitrification system, and starting and operating the system; (4) carrying out sequencing batch reaction, carrying out aeration after water feeding is finished, and respectively adding the ferric oxide nanoparticles or ferric trichloride according to a certain adding frequency; and (5) monitoring the nitrite accumulation rate of the effluent, and when the nitrite accumulation rate reaches 75% or above and stable operation is carried out for 7 days or above, considering that the short-cut nitrification system is successfully started. The sludge settling performance can be remarkably improved, the process control condition is simple, the operation cost is low, the operability is high, and the operation effect is stable.

The invention provides a device and a method for treating low-C / N municipal sewage by pre-positioned short-range denitrification-anaerobic ammonia oxidation and belongs to the technical field of biological sewage treatment. The device provided by the invention comprises a raw water tank, a pre-positioned short-range denitrification reactor, an intermediate water tank and an anaerobic ammonia oxidation reactor. The method comprises the following steps: firstly, enabling the municipal sewage to enter the pre-positioned short-range denitrification reactor and carrying out short-range denitrification by utilizing organic matters in domestic sewage and nitric nitrogen which is remained on the last period; secondly, enabling the sewage into an anaerobic ammonia oxidation reactor and carrying out autotrophic nitrogen removal; meanwhile, draining water from the pre-positioned short-range denitrification reactor and carrying out aerobic aeration to generate the nitric nitrogen. According to the device and the method, provided by the invention, a carbon source in domestic sewage can be sufficiently utilized for carrying out the short-range denitrification and the ratio of an anaerobic ammonia oxidation substrate is controlled through a water draining ratio, so that energy sources are saved; the device and the method are easy to control and high in stability, and an effective way is provided for application of a mainstream anaerobic ammonia oxidation technology and deep denitrification of the low-C / N municipal sewage.

The invention provides a device and a method for treating high-concentration nitrate wastewater and urban sewage by partial denitrification and anaerobic ammonia oxidation, and belongs to the field of sewage bio-treatment. Nitrate wastewater and urban sewage enter a partial denitrification reactor, nitrate is reduced into nitrite through heterotrophic denitrification strains by using biodegradable organic carbon sources in the urban sewage, effluent enters an anaerobic ammonia oxidation reactor, and ammonia nitrogen and nitrite in the urban sewage are subjected to anaerobic ammonia oxidation reaction to generate nitrogen. By adopting the device and the method, synchronous nitrogen removal of the high-concentration nitrate wastewater and the urban sewage is realized, additional carbon sources are not needed, the operational management is convenient, the operating cost is reduced, the consumption of energy is reduced, and the denitrification efficiency is high.

A quick largest nitrite accumulation method in denitrification process belongs to the technical field of biological treatment of sewage. According to the method, the largest nitrite accumulation method in denitrification process can be realized by inoculation of primary sludge, and the method includes the following steps: the primary sludge is used as inoculation sludge, mixed liquid sludge concentration MLSS after inflow is maintained in 2000-4000mg / L; sodium acetate is added to be used as a denitrification carbon source, COD / NO<->-N after addition is controlled between 2.5 and 3.5; the reactor pH value is controlled between 9 and 9.5, and ultimately the conversion from nitrate to nitrite can be realized. The method is easy to control and simple in operation, the inoculation sludge is rich in source, effluent nitrite accumulation rate reaches 85% to 95%, and the inoculation sludge can be used as an anaerobic ammonia oxidation reaction electron acceptor source.

The invention relates to a device and a method for realizing deep denitrification of domestic sewage by synchronous nitrification and denitrification combined with short-range denitrification and anammox with intermittent aeration, and belongs to the field of sewage biological treatment. The device includes excess sludge fermentation tank, mud-water separator, raw water tank, intermediate water tank, two sequencing batch SBR reactors, air compressor, peristaltic pump, etc. The method is to add domestic sewage into the first sequence batch reactor, and remove all ammonia nitrogen and most of the total nitrogen through synchronous nitrification and denitrification under the intermittent aeration mode; In the second-sequence batch reactor, the remaining nitrite and nitrate are removed through short-range denitrification coupled with anaerobic ammonium oxidation, and finally realize the deep denitrification of domestic sewage. The invention is suitable for low C / N urban domestic sewage, can reduce aeration, reduce energy consumption, homogenize the concentration of organic matter in domestic sewage, slow down the consumption speed of organic matter, improve the efficiency of denitrification, and realize resource utilization of excess sludge at the same time.

The invention relates to a method for laser cladding and stacking horizontal ribs on sections of unequal heights, comprising the following steps: providing sections of unequal heights and a laser cladding device, determining the stacking position on the sections of unequal heights, according to the The stacking position determines the length of the ribs on the unequal height section; the lowest point of the stacking position is used as the first section of the ribs, and the highest point is used as the end section of the ribs, according to the length and each The height of the ribs in the vertical direction determines the number of segments of the ribs, and the cladding of each rib is determined according to the relationship between the cladding height of the ribs in each segment and the scanning speed under a certain parameter Speed, laser cladding to obtain horizontal ribs. The method adopts the stepwise speed change method to divide the ribs with different heights into sections, and makes use of the influence of the scanning speed change on the cladding layer height, so that the cladding ribs have a horizontal structure.

The invention relates to the field of sewage treatment, in particular to a method for short-range nitrification treatment of sewage. The method for treating sewage with short-range nitrification provided by the invention comprises the steps of: adding a short-range nitrification accelerator to the sewage, the short-range nitrification accelerator comprising 2-30 parts by weight of inorganic hydroxylamine and 0.1-20 parts by weight of inorganic ammonium salt ; The pH of the sewage is 6.5-6.95. The method for short-range nitrification treatment of sewage provided by the invention can significantly increase the nitrite accumulation rate, control the biological nitrification reaction in the stage of nitrite accumulation, thereby benefiting the sewage denitrification process, improving the treatment effect of waste water, and having a good effect engineering application value.