CN-224212515-U - Short-cut nitrification-coupling anaerobic ammonia oxidation integrated device

CN224212515UCN 224212515 UCN224212515 UCN 224212515UCN-224212515-U

Abstract

The utility model discloses a shortcut nitrification-coupled anaerobic ammonia oxidation integrated reactor, wherein a perforated plate is arranged in the reactor, a first part for shortcut nitrification and a second part for anaerobic ammonia oxidation are respectively distributed on the upper side and the lower side of the perforated plate, sludge of nitrosated bacteria is attached to the first part through a first filler to fix aerobic bacteria, the first part is connected with an aeration source, anaerobic ammonia oxidation bacteria are fixed in the second part through a second filler, the size of the filler is larger than the hole size of the perforated plate, a mud water backflow and separation module is arranged in the second part, the mud water backflow and separation module comprises a mud water separation area and a sludge backflow area which are integrally connected, and a water outlet pipe is connected in the mud water separation area for separating aged sludge and discharging. The reactor can stabilize the growth of dominant strains and improve the denitrification treatment effect.

Inventors

HE HAODONG
CHEN GUANGMING

Assignees

辰艺环境技术(上海)有限公司

Dates

Publication Date: 20260508
Application Date: 20250530

Claims (10)

1. The shortcut nitrification-coupled anaerobic ammonia oxidation integrated device is characterized by comprising a reactor, wherein a perforated plate is arranged in the reactor, a first part for shortcut nitrification and a second part for anaerobic ammonia oxidation are distributed on the upper side and the lower side of the perforated plate, sludge of nitrosation bacteria is attached to the first part through a first filler to fix aerobic bacteria, the first part is connected with an aeration source, anaerobic ammonia oxidation bacteria are fixed to the second part through a second filler, the size of the filler is larger than the hole size of the perforated plate, a mud water backflow and separation module is arranged in the second part, the mud water backflow and separation module comprises a mud water separation area and a mud water backflow area which are integrally connected, and a water outlet pipe is connected in the mud water separation area for separating aged sludge and discharging the aged sludge.
2. The shortcut nitrification coupled anaerobic ammonia oxidation integrated device according to claim 1, wherein the sludge-water backflow and separation module comprises a plurality of baffles which are arranged in parallel and integrally connected, a cavity is formed between every two adjacent baffles to form the sludge-water separation zone, at least one outer side surface of the integrally connected baffles is provided with a plurality of wedge-shaped plates, and the wedge-shaped plates are positioned on the lower side surface of the baffles to form a sludge backflow zone on the side surface of the baffles.
3. The shortcut nitrification coupled anaerobic ammonia oxidation integrated device according to claim 2, wherein the plurality of wedge-shaped plates are uniformly spaced and vertically distributed on the outer side surface of the baffle plate.
4. The shortcut nitrification coupled anaerobic ammonia oxidation integrated device according to claim 2, wherein a baffle cavity of the sludge-water separation zone is communicated to the water outlet pipe, and the water outlet pipe is connected to the top of the baffle and is located above the wedge plate.
5. The shortcut nitrification coupled anaerobic ammonia oxidation integrated device according to claim 2, wherein said baffle is fixed in said reactor by a module support.
6. The shortcut nitrification coupled anaerobic ammonia oxidation integrated device according to claim 1, wherein the second portion is provided with a water inlet pipe, the water inlet pipe extends into the second portion of the reactor through a water distribution branch pipe, the water distribution branch pipe is located below the perforated plate, and a microporous aeration disc is further arranged below the water distribution branch pipe.
7. The integrated short range nitrification-coupled anaerobic ammonia oxidation device according to claim 6, wherein the aeration disc is further connected with a blower, and the blower is in communication connection with an ORP measuring instrument for detecting sewage.
8. The shortcut nitrification coupled anaerobic ammonia oxidation integrated device according to claim 6, wherein the water distribution branch pipe is provided with an opening, and the opening direction is towards the microporous aeration disc at the bottom.
9. The shortcut nitrification coupled anaerobic ammonia oxidation integrated device according to claim 8, wherein the openings of the water distribution branch pipes are positioned under the pipeline and positioned in 45-degree directions on two sides of the right under the pipeline.
10. The integrated short-cut nitrification-coupled anaerobic ammonia oxidation device according to claim 1, wherein the first filler is a cage-like filler, and the second filler is an iron-based cage-like filler.

Description

Short-cut nitrification-coupling anaerobic ammonia oxidation integrated device Technical Field The utility model relates to the technical field of sewage treatment, in particular to a short-cut nitrification-coupled anaerobic ammonia oxidation integrated device. Background As a novel efficient and energy-saving biological denitrification process, the anaerobic ammonia oxidation (Anamox) process technology is the fastest biological denitrification way at present, an aeration device is not needed to be added, and the carbon source requirement is low, so that the novel biological denitrification process has remarkable economic advantages and has great development prospect in the biological denitrification field. Meanwhile, the existing anaerobic ammonia oxidation process has the greatest challenges that anaerobic ammonia oxidation strains grow slowly and are fragile and sensitive to environmental factors such as pH, dissolved oxygen and the like, and on the other hand, the anaerobic ammonia oxidation process cannot directly utilize nitrate nitrogen, but needs sufficient nitrite nitrogen. The traditional process mainly adopts the mixed liquor after aeration to reflux, the occupied space is larger, a new back-end nitrification tank is needed, the nitrification degree of the reflux liquor is difficult to control, and when an integrated reactor needs to be built, the aeration at the bottom can be caused to inhibit the growth of anaerobic ammonia oxidizing bacteria, so that the method becomes a technical problem to be solved in the field. Disclosure of utility model Aiming at the technical problems in the prior art, the utility model aims to provide a short-cut nitrification-coupled anaerobic ammonia oxidation integrated device which can stabilize the growth of dominant strains and improve the denitrification treatment effect. The utility model aims to provide a shortcut nitrification-coupled anaerobic ammonia oxidation integrated reactor, which adopts the following technical scheme: A short-cut nitrification-coupling anaerobic ammonia oxidation integrated reactor is characterized in that a perforated plate is arranged in the reactor, a first part for carrying out short-cut nitrification and a second part for carrying out anaerobic ammonia oxidation are distributed on the upper side and the lower side of the perforated plate respectively, aerobic bacteria are fixed in the first part through the attachment of sludge of nitrosate bacteria by a first filler, the first part is connected with an aeration source, anaerobic ammonia oxidation bacteria are fixed in the second part through a second filler, the size of the filler is larger than the size of a hole of the perforated plate, a mud water backflow and separation module is arranged in the second part, the mud water backflow and separation module comprises a mud water separation area and a sludge backflow area which are integrally connected, and a water outlet pipe is connected in the mud water separation area and used for separating aged sludge and discharging. In some embodiments, the mud-water backflow and separation module comprises a plurality of baffles which are arranged in parallel and integrally connected, a cavity is formed between every two adjacent baffles to form the mud-water separation area, at least one outer side surface of the integrally connected baffles is provided with a plurality of wedge-shaped plates, and the wedge-shaped plates are positioned on the lower side surface of the baffles to form a mud-water backflow area on the side surface of the baffles. In some embodiments, the plurality of wedge plates are uniformly spaced and vertically distributed on the outer side of the baffle. In some embodiments, the baffle cavity of the mud-water separation zone is connected to the water outlet pipe, which is connected to the top of the baffle above the wedge plate. In some embodiments, the baffle is secured within the reactor by a modular bracket. In some embodiments, the second part is provided with a water inlet pipe, the water inlet pipe extends into the second part of the reactor through a water distribution branch pipe, the water distribution branch pipe is positioned below the perforated plate, and a microporous aeration disc is also arranged below the water distribution branch pipe. In some embodiments, the aeration disc also has a blower connected in communication with an ORP meter for detecting wastewater for signal interlocking. In some embodiments, the water distribution branch pipe is provided with an opening, and the direction of the opening faces to the microporous aeration disc at the bottom. In some embodiments, the openings of the water distribution branch pipes are positioned right below the pipeline and positioned in 45-degree directions on two sides right below the pipeline. In some embodiments, the first filler is a cage filler and the second filler is an iron-based cage filler. The beneficial effects are that: 1) The reactor is di