Patents List of BDP. Biological sewage treatment technology and biological. sewage treatment device. Aerating device and water treatment equipment

Transcription

1 Patents List of BDP Patent Category Title Approval number Patent for invention Patent for invention Biological sewage treatment technology and biological sewage treatment device Aerating device and water treatment equipment utilizing same Patent for invention Patent for invention Patent for utility models Thrust device and biological sewage treatment device and biological sewage treatment technology utilizing same Aerating device Biological sewage treatment device Patent for utility models Patent for utility models Aeration apparatus and water treatment equipment employing the same Flow pushing apparatus and biological sewage processing apparatus employing the same

2 Biological sewage treatment technology and biological sewage treatment device Application number CN CN B Publication date CN The invention discloses a biological sewage treatment technology which comprises the following steps: injecting sewage into a biological reaction tank; mixing a circulatory water-sludge mixture in the biological reaction tank and the injected sewage and then filling the mixture into an aeration area, wherein the dissolved oxygen content of the aeration area is 0.1 mg/l to 0.5 mg/l; and separatingthe water-sludge mixture passing through the aeration area to obtain clear water. Compared with the prior art, the biological sewage treatment technology is beneficial to removing organic matter in the sewage and realizes the denitriding process of synchronous nitrification and denitrification because the dissolved oxygen content is controlled from 0.1 mg/l to 0.5 mg/l and a dissolved oxygen concentration value in an aeration tank is not beyond the range, thereby needing not to carry out the denitriding process of a denitrification tank, saving technical steps and equipment and being capable of achieving a discharge standard. The invention also discloses a biological sewage treatment device which can realize the biological sewage treatment technology. Aerating device and water treatment equipment utilizing same

3 CN CN B Publication date C02F7/00; CN The invention discloses an aerating device which comprises an aerating hose and a guide device, wherein the guide device is arranged at the bottom of a pool; the aerating hose is arranged under the guide device, laid at the bottom of the pool, extended to the other end of the bottom of the aerating pool from one end of the bottom of the aerating pool by the guide device and detachably connected nearby the top of the aerating pool. Compared with the prior art, the method for installing the aerating device uses the aerating hose and detachably mounts the aerating hose in the aerating pool by the guide device and a frame structure; when the aerating hose needs to be replaced, the detachable part of the aerating hose is just opened and connected with a rope, a staff pulls the aerating hose out of the starting end of the aerating pool to replace the aerating hose, then pulls a replaced aerating hose in the aerating pool and takes the rope down to fix the replaced aerating hose due to the structure setting, thereby being more convenient and rapid to mount the aerating device. Thrust device and biological sewage treatment device and biological sewage treatment technology utilizing same

4 CN CN B Publication date CN The invention discloses a thrust device for the fields of sewage treatment. The thrust device is positioned in a biological reaction tank and comprises a first wall, a second wall and a bubble generating device, wherein the first wall and the bottom of the biological reaction tank are connected in a seal way or connected into a whole; the bubble generating device is arranged between the first wall and the second wall; the top end of the second wall is higher than that of the first wall; and the bottom end of the second wall is separated from the bottom of the biological reaction tank. Compared with the prior art, the thrust device has quite even thrust sewage mixture because a plurality of bubbles generated by the bubble generating device are fully mixed with the sewage in the position, is beneficial to providing a good external environment to activated sludge and can realize the larger circulatory dilution ratio and be even as high as thousand times of the circulatory dilution ratio at lower energy consumption. The invention also discloses a biological sewage treatment device and a biological sewage treatment technology utilizing the thrust device. Aerating device

5 CN CN B Publication date CN The invention discloses an aerating device which comprises an air allotting device and a plurality of aerating pipes, wherein the air allotting device is communicated with the aerating pipes; and aerating micropores are arranged on the aerating pipes. The aerating device is characterized in that a distance between the adjacent aerating pipes is from 80 mm to 300 mm, and at least 2,000 aerating micropores are arranged on each aerating pipe. Compared with the prior art, the aerating device has 80 mm to 300 mm of distance between the adjacent aerating pipes and reasonable aerating pipe distance setting, improves oxygenation efficiency, and can not only reduce aerating power consumption, but also eliminate an aerating blind zone, lead dissolved oxygen concentration in sewage to be more balanced and supply a softer growing environment to microorganisms so as to more effectively and thoroughly remove various pollutants in water. Biological sewage treatment device

6 CN CN Y Publication date CN The utility model relates to a biological sewage treatment device; a mud-water separating system, a system for promoting the circulation of the mud-water mixture and an aeration system are arranged inside a biological reaction tank, and the aeration system comprises a plurality of aeration pipes and a blower device; the biological sewage treatment device is characterized in that the distance between two adjacent aeration pipes is 8 to 30 cm. Compared with the prior art, the biological sewage treatment device can control the dissolved oxygen content within 0.1 to 0.5 mg/l, and the dissolved oxygen concentration value inside the aeration tank is free from exceeding the range of 0.1 to 0.5 mg/l, so that not only the organic substances inside the sewage can be easily removed, but also the denitrification process of synchronically nitrating and denitrating can be realized, thereby being free from the denitrification process of the denitrating tank, and saving the process procedures and equipment, and reaching the discharging standard. Aeration apparatus and water treatment equipment employing the same

7 CN CN Y Publication date C02F3/02 CN The utility model discloses an aerator comprising an aeration hose and a guiding device, wherein, the guiding device is arranged at the tank bottom; the aeration hose is also laid at the tank bottom, and is positioned under the guiding device; and the aeration hose extends from one end of the tank bottom of an aeration tank to the other end of the tank bottom of the aeration tank through the guiding device, and is connected with the position somewhere about the tank top of the aeration tank in a detachable way. Compared with the prior art, the assembling method of the aerator is better, for the aeration hose is used and is arranged in the aeration tank in a detachable way through the guiding device and a framework structure, therefore the structural arrangement enables working personnel to draw out the aeration hose from the start end of the aeration tank and carry out the replacement by only opening the detachable part of the aeration hose and connecting the detachable part with a section of rope when the aeration hose needs to be replaced, then the aeration hose after being replaced is drawn into the aeration tank, and finally, the rope is taken off and the fixation is carried out, so that the assembly of the aerator is more convenient and faster. Flow pushing apparatus and biological sewage processing apparatus employing the same Application number CN

8 CN Y Publication date CN The utility model discloses a flow pushing device which is used in the sewage treating filed. The flow pushing device comprising a first wall body, a second wall body and a gas bubble generating device is positioned in a biological reaction tank, wherein, the first wall body is hermetically connected with the bottom part of the biological reaction tank or is connected with the bottom part of the biological reaction tank into a whole; the gas bubble generating device is arranged between the first wall body and the second wall body; the top end of the second wall body is higher than the top end of the first wall body; and the bottom end of the second wall body is separated from the tank bottom of the biological reaction tank. Compared with the prior art, the flow pushing device has the following advantages: the gas bubble generating device generates a great amount of gas bubbles which are fully mixed with sewage, thereby enabling the sewage after being pushed to be more uniformly mixed, providing the activated sludge with a good external environment, and realizing a larger cycling dilution ratio (even thousands of times) under the lower energy consumption. The utility model also discloses a biological sewage treating device utilizing the flow pushing device.