CN205061801U - Novel breeding wastewater treatment system - Google Patents

Abstract

The utility model provides a new type of aquaculture sewage treatment system, which includes a water collection pool. Behind the water collection pool, a solid-liquid separator, a sedimentation tank, a hydrolysis acidification adjustment pool, a primary anoxic pool, a primary aerobic pool, and a secondary aerobic pool are connected in sequence. A first-level anoxic tank, a second-level aerobic tank, and a final sedimentation tank. There is a mixed liquid reflux between the first-level anoxic tank and the first-level aerobic tank, and a series connection between the second-level aerobic tank and the final sedimentation tank A micro-electrolysis device, an aeration tank, and a phosphorus removal tank are connected, and an oxidation pond is also provided behind the final sedimentation tank. The utility model has the advantages of: through effective pretreatment, interference factors to subsequent biochemical treatments are eliminated; There is a micro-electrolysis device, which can use electrochemical oxidation fillers to electrochemically treat wastewater with wastewater as an electrolyte to remove refractory organic matter; through the installation of a phosphorus removal tank and an aeration tank, the residual organic matter in the sewage can be further treated and removed. Nitrogen and phosphorus removal is more thorough.

Description

New aquaculture sewage treatment system

technical field

The utility model relates to the field of sewage treatment, in particular to the treatment of aquaculture sewage.

Background technique

The treatment of aquaculture sewage has attracted much attention, and the process of treating sewage has been improved over the years. There are 2-stage AO in the traditional Bardenpho process, and there are also mixed liquor return and sludge return systems. Although the treatment of wastewater by the Bardenpho process has the potential to completely remove nitrate in concept, it is not possible in practice. The COD concentration of aquaculture wastewater is high, and the sludge load of the biochemical system is large; the ammonia nitrogen removal ability is poor, and the ammonia nitrogen cannot be completely removed, and only most of the ammonia nitrogen is converted into nitrification nitrogen; the total phosphorus removal ability is poor, and biochemical measures alone Total phosphorus cannot be effectively treated; and the degradation rate of refractory substances is low.

Therefore, it is necessary to improve on the basis of the effect of the process and overcome the deficiencies in the prior art.

Contents of the invention

The utility model aims to provide a new type of aquaculture sewage treatment system to solve the problems of insufficient nitrogen and phosphorus removal capacity and low degradation rate of refractory substances in the traditional Bardenpho process.

The new type of aquaculture sewage treatment system includes a sump, which is connected in turn with a solid-liquid separator, a sedimentation tank, a hydrolysis acidification adjustment pool, a primary anoxic pool, a primary aerobic pool, a secondary anoxic pool, and a secondary anoxic pool. Level aerobic tank, final sedimentation tank, mixed solution reflux is provided between the first level anoxic tank and the first level aerobic tank, a micro-electrolysis device is connected in series between the second level aerobic tank and the final sedimentation tank, An aeration pond, a phosphorus removal pond, and an oxidation pond are provided behind the final sedimentation pond.

Further, the micro-electrolysis device is provided with an electrochemical oxidation filler, and the electrochemical oxidation filler is iron.

Further, the phosphorus removal pond contains calcium salt and PAM.

Further, the aeration tank is provided with porous aeration pipes.

Further, the sump is a gravity slag separation tank.

Further, the sedimentation tank is a vertical flow sedimentation tank.

Further, the final sedimentation tank is an inclined plate sedimentation tank.

Further, the primary aerobic tank, the secondary aerobic tank and the aeration tank are all supplied with gas by an air supply device.

It can be seen from the above that the utility model has the advantages of: by providing a gravity type slag separation tank, a solid-liquid separator, and a vertical flow sedimentation tank, the sewage can be effectively pretreated, and the interference factors to the subsequent biochemical treatment can be eliminated; Equipped with a micro-electrolysis device, which can use the potential difference generated by the electrochemical oxidation filler itself to form a primary battery, use wastewater as an electrolyte, and complete the electrochemical treatment of wastewater through the interaction of cathode and anode to remove refractory organic matter; The phosphorus removal tank can remove the phosphorus in the sewage more effectively; through the aeration tank, the residual organic matter in the sewage can be further treated, and the denitrification is more thorough, and the inclined plate sedimentation tank further separates the sediment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the utility model.

detailed description

In order to solve the problems of insufficient nitrogen and phosphorus removal capacity and low degradation rate of refractory substances in the traditional Bardenpho process, a new type of aquaculture sewage treatment system is now provided.

The technical solution in the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the utility model. Obviously, what is described is only a part of the embodiments of the utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the new aquaculture sewage treatment system includes a sump 1, which is connected with a solid-liquid separator 2, a sedimentation tank 3, a hydrolysis acidification adjustment tank 4, a primary anoxic pool 5, a primary Aerobic pool 6, secondary anoxic pool 7, secondary aerobic pool 8, final sedimentation pool 12, mixed solution reflux is provided between the primary anoxic pool 5 and the primary aerobic pool 6, and the secondary A micro-electrolysis device 9, an aeration tank 10, and a phosphorus removal tank 11 are connected in series between the primary aerobic tank 7 and the final sedimentation tank 8, and an oxidation pond is also provided behind the final sedimentation tank.

The micro-electrolysis device 9 is provided with an electrochemical oxidation filler, the phosphorus removal tank 11 contains calcium salt and PAM, the aeration tank 10 is provided with a porous aeration tube, and the water collection tank 1 is a gravity-type slag separation pool, the sedimentation tank 3 is a vertical flow sedimentation tank, the final sedimentation tank 12 is an inclined plate sedimentation tank, and the primary aerobic tank 6, the secondary aerobic tank 8 and the aeration tank 10 are all provided by an air supply device 14 gas supply.

The sewage enters from the pipe, and the large particle impurities in the sewage are removed through the gravity slag separation tank and the solid-liquid separator, and then the small particle impurities and scum are removed by the vertical flow sedimentation tank; the effluent after the above pretreatment enters the two-stage AO treats organic matter, ammonia nitrogen, and total phosphorus in sewage, and the first-level anoxic pool and the first-level aerobic pool return the mixed liquid to effectively reduce the impact of sewage; then the effluent enters the micro-electrolysis device, and the potential generated by the electrochemical oxidation filler itself Poor, using wastewater as the electrolyte, and electrochemically treating the wastewater with the discharge of the cathode and anode. In the electrochemical treatment, the BOD and COD in the wastewater increase, improving the biodegradability of the wastewater. In the aeration tank and phosphorus removal tank Carry out another biochemical treatment, and finally separate the sediment in the inclined plate sedimentation tank, and then flow into the oxidation pond to remove the residual organic matter and pathogens, so that the indicators of the final effluent can meet the sewage discharge standards and protect the environment.

It can be seen from the above that the utility model has the advantages of: by providing a gravity type slag separation tank, a solid-liquid separator, and a vertical flow sedimentation tank, the sewage can be effectively pretreated, and the interference factors to the subsequent biochemical treatment can be eliminated; Equipped with a micro-electrolysis device, it can use the potential difference generated by the electrochemical oxidation filler itself to form a primary battery, use wastewater as an electrolyte, and complete the electrochemical treatment of wastewater through the interaction of cathode and anode to remove refractory organic matter and improve the efficiency of sewage. Biodegradability; through the installation of a phosphorus removal tank, the phosphorus in the sewage can be removed more effectively; through the installation of an aeration tank, the residual organic matter in the sewage can be further treated, and the denitrification is more thorough. Further separation of pollutants, the oxidation pond can further purify pollutants such as organic matter and pathogens.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (8)

1. Novel cultivation Sewage treatment systems, comprise water collecting basin, solid-liquid separating machine, settling tank, acidication equalizing tank, one-level anoxic pond, one-level Aerobic Pond, secondary anoxic pond, secondary Aerobic Pond, final deposition pool is connected with in turn after described water collecting basin, mixed-liquor return is provided with between described one-level anoxic pond and one-level Aerobic Pond, it is characterized in that, be serially connected with a micro-electrolysis device, aeration tank, dephosphorization pond between described secondary Aerobic Pond and described final deposition pool, after described final deposition pool, be also provided with oxidation pond.

2. Novel cultivation Sewage treatment systems according to claim 1, it is characterized in that, be provided with electrochemical oxidation filler in described micro-electrolysis device, described electrochemical oxidation filler is iron.

3. Novel cultivation Sewage treatment systems according to claim 1, is characterized in that, containing calcium salt and PAM in described dephosphorization pond.

4. Novel cultivation Sewage treatment systems according to claim 1, it is characterized in that, described aeration tank is provided with porous aeration tube.

5. Novel cultivation Sewage treatment systems according to claim 1, it is characterized in that, described water collecting basin is that gravity type boat davit is every slag bath.

6. Novel cultivation Sewage treatment systems according to claim 1, it is characterized in that, described settling tank is vertical sedimentation basin.

7. Novel cultivation Sewage treatment systems according to claim 1, it is characterized in that, described final deposition pool is inclined-plate clarifying basin.

8. Novel cultivation Sewage treatment systems according to claim 1, it is characterized in that, one-level Aerobic Pond, secondary Aerobic Pond and aeration tank are by an air feeder air feed.