CN216039153U

CN216039153U - High-efficient, stable effluent disposal system that slaughters

Info

Publication number: CN216039153U
Application number: CN202122077789.9U
Authority: CN
Inventors: 刘启东; 李振江; 刁家久; 刘世浩; 万贵波
Original assignee: Chongqing Fengrun Environmental Protection Engineering Co ltd
Current assignee: Chongqing Fengrun Environmental Protection Engineering Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-15
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a high-efficiency and stable slaughter wastewater treatment system, which is characterized in that: including consecutive grid pond and sedimentation equalizing basin, the sedimentation equalizing basin links to each other with the blending tank, be provided with the flocculating agent inlet on the blending tank, the export of blending tank links to each other with solid-liquid separation machine, the solid-liquid separation machine goes out water and connects gradually complete hybrid hydrolysis acidification pond, vertical sedimentation tank, ICEAS pond, middle pond and coagulating sedimentation tank, be provided with the active carbon inlet on the ICEAS pond, the mud pipe that is provided with mud back flow and vertical sedimentation tank on the complete hybrid hydrolysis acidification pond links to each other. The effluent quality can reach the first-level standard in the Integrated wastewater discharge Standard, and the effluent is stable.

Description

High-efficient, stable effluent disposal system that slaughters

Technical Field

The utility model relates to a high-efficiency and stable slaughter wastewater treatment system, and belongs to the technical field of sewage treatment.

Background

Slaughter waste water mainly includes that animal manure, slaughter the process and wash waste water, ground washing waste water etc. and waste water quality characteristic is that the biochemistry is good, suspended solid concentration is high, COD concentration is high, ammonia nitrogen and chroma are high, and wherein the suspended solid gets rid of comparatively crucial, and it not only disturbs pretreatment unit treatment effect, often can lead to equipment to block up moreover. At present, the common pretreatment mode in slaughter wastewater treatment facilities is drum microfiltration and air floatation, but the drum microfiltration removal efficiency is not high, and a releaser and a dissolved air pump of an air floatation machine are often blocked, so that the pretreatment effect is poor; the conventional biochemical treatment process is hydrolytic acidification and contact oxidation, and the common problems of the combined process are as follows: (1) the denitrification and dephosphorization effect is poor; (2) slaughtering wastewater contains a large amount of ammonia nitrogen and phosphate, and struvite is easily formed on the filler surface of a hydrolytic acidification and contact oxidation tank, so that the microbial attachment on the biological filler is greatly reduced; (3) the aerobic tank has large load and large foam amount, and the effluent quality effect is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model aims to provide an efficient and stable slaughter wastewater treatment system, the quality of effluent can reach the first-level standard in the integrated wastewater discharge standard, and the effluent is stable.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a high-efficient, stable slaughter wastewater treatment system which characterized in that: including consecutive grid pond and sedimentation equalizing basin, the sedimentation equalizing basin links to each other with the blending tank, be provided with the flocculating agent inlet on the blending tank, the export of blending tank links to each other with solid-liquid separation machine, the solid-liquid separation machine delivery port connects gradually complete mixing formula hydrolysis acidification pond, vertical flow sedimentation tank, ICEAS pond, middle pond and coagulating sedimentation tank, be provided with the active carbon inlet on the ICEAS pond, the mud pipe that is provided with mud back flow and vertical flow sedimentation tank on the complete mixing formula hydrolysis acidification pond links to each other.

By adopting the scheme, the artificial grids in the grid pond are utilized to remove the hair, the minced meat, other large-particle suspended matters and the like of the livestock and poultry; and the sedimentation regulating tank is used for mixing and regulating the suspended substances in the slaughter wastewater after sedimentation. And (3) the effluent of the sedimentation regulating tank enters a solid-liquid separator for solid-liquid separation, and cationic PAM is added into the mixing tank before the solid-liquid separation so as to further remove suspended matters in the wastewater. The effluent of the solid-liquid separator directly enters a completely mixed hydrolysis acidification tank for hydrolysis acidification reaction so as to remove COD, suspended matters and the like in the wastewater; and (3) enabling the water discharged from the completely mixed hydrolysis acidification tank to enter a vertical flow sedimentation tank for mud-water separation, and enabling most of sediments at the bottom of the vertical flow sedimentation tank to flow back to the completely mixed hydrolysis acidification tank. The effluent of the vertical flow sedimentation tank enters an ICEAS (ion activated sludge aeration) tank, and powdered activated carbon is added into the ICEAS tank so as to improve the removal efficiency of COD (chemical oxygen demand), N (nitrogen), P (phosphorus) and the like. The effluent of the ICEAS pool enters an intermediate pool for storage, and the effluent of the intermediate pool enters a coagulating sedimentation tank so as to further remove pollutants such as COD, N, P and the like.

In the scheme, the method comprises the following steps: the sludge discharge pipes of the sedimentation regulating tank and the vertical flow sedimentation tank are also connected with a sludge tank. The sediment is discharged into a sludge tank.

In the scheme, the method comprises the following steps: the solid-liquid separator is a stack spiral filter. The energy consumption is low, and the effect of removing the suspended solid is stable, gets rid of efficiently.

In the scheme, the method comprises the following steps: and a water outlet pipe of the sedimentation regulating tank is connected with the mixing tank through a pump.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the grid, the sedimentation regulating tank, the cationic PAM flocculation and the solid-liquid separation can effectively remove suspended matters without blocking equipment.

(2) The combined process of complete hydrolysis acidification and vertical flow precipitation replaces the traditional hydrolysis acidification process, and biological fillers do not need to be arranged in the complete mixing type hydrolysis acidification tank, so that the maintenance is simple, and the treatment efficiency is high.

(3) The ICEAS process of adding powdered activated carbon replaces the contact oxidation pond, not only improves the removal efficiency of pollutants such as N, P, etc., but also can prevent the foam from producing.

(4) The coagulating sedimentation is positioned at the tail end of the process, which is beneficial to reducing the generation amount of chemical sludge and reducing the total treatment and disposal cost of the sludge.

(5) The effluent quality is good, and can reach the first-level standard in the integrated wastewater discharge standard.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The utility model will be further illustrated by the following examples in conjunction with the accompanying drawings:

embodiment 1, as shown in fig. 1, the high-efficiency stable slaughter wastewater treatment system of the utility model comprises a grid tank 1 and a sedimentation regulating tank 2 which are connected in sequence, wherein the sedimentation regulating tank 2 is connected with a mixing tank 4, specifically, a water outlet pipe of the sedimentation regulating tank 2 is connected with the mixing tank 4 through a pump 3, water is lifted to the mixing tank 4 through the pump 3, a flocculating agent (cationic PAM) inlet is arranged on the mixing tank 4, an outlet of the mixing tank 4 is connected with a solid-liquid separator, preferably, the solid-liquid separator is a stack screw filter 5, the effluent of the solid-liquid separator is sequentially connected with a completely mixed hydrolysis acidification tank 6, a vertically flowing sedimentation tank 7, an ICEAS tank 8, an intermediate water tank 9 and a coagulation sedimentation tank 10, the ICEAS tank 8 is provided with an activated carbon inlet, and the completely mixed hydrolysis acidification tank 6 is provided with a sludge return pipe connected with a sludge discharge pipe of the vertically flowing sedimentation tank 7. The sludge discharge pipes of the sedimentation regulating tank 2 and the vertical sedimentation tank 7 are also connected with a sludge tank 11.

The slaughtering wastewater treatment is carried out by adopting the utility model, and the water inlet quality is as follows:

and (3) effluent quality:

can reach the first-level standard in the integrated wastewater discharge standard.

The present invention is not limited to the above-described embodiments, and those skilled in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a high-efficient, stable slaughter wastewater treatment system which characterized in that: including consecutive grid pond and sedimentation equalizing basin, the sedimentation equalizing basin links to each other with the blending tank, be provided with the flocculating agent inlet on the blending tank, the export of blending tank links to each other with solid-liquid separation machine, the solid-liquid separation machine delivery port connects gradually complete mixing formula hydrolysis acidification pond, vertical flow sedimentation tank, ICEAS pond, middle pond and coagulating sedimentation tank, be provided with the active carbon inlet on the ICEAS pond, the mud pipe that is provided with mud back flow and vertical flow sedimentation tank on the complete mixing formula hydrolysis acidification pond links to each other.

2. The high efficiency, stable slaughter wastewater treatment system according to claim 1, wherein: the sludge discharge pipes of the sedimentation regulating tank and the vertical flow sedimentation tank are also connected with a sludge tank.

3. The high efficiency, stable slaughter wastewater treatment system according to claim 1, wherein: the solid-liquid separator is a stack spiral filter.

4. A high efficiency, stable slaughter wastewater treatment system according to any one of claims 1-3, wherein: and a water outlet pipe of the sedimentation regulating tank is connected with the mixing tank through a pump.