CN212640228U

CN212640228U - Waste water biochemical treatment system

Info

Publication number: CN212640228U
Application number: CN202021243495.8U
Authority: CN
Inventors: 黄万平
Original assignee: Guangdong Huizhitong Energy And Environmental Protection Development Co ltd
Current assignee: Guangdong Huizhitong Energy And Environmental Protection Development Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-02
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a waste water biochemical treatment system for the waste water that produces when handling production facility production, including flocculating settling tank, multi-media filter, activated carbon filter, biochemical treatment device, precision filter and the reverse osmosis unit who loops through the pipeline and be linked together, reverse osmosis unit's the end intercommunication of intaking has the high-pressure pump, just the high-pressure pump with the precision filter intercommunication, reverse osmosis unit and precision filter's clear water outlet end communicates to production facility through the pipeline respectively. The utility model discloses an add the flocculating agent in waste water and deposit back filtration, absorption, after the reentrant biochemical treatment, carry out the advanced treatment of waste water through precision filter and reverse osmosis unit for the waste water recycle after handling not only can the water economy resource in industrial production, still can protect the environment.

Description

Waste water biochemical treatment system

Technical Field

The utility model relates to a waste water treatment technical field, concretely relates to waste water biochemical treatment system.

Background

In industrial or agricultural production, wastewater containing a large amount of pollutants is generated, for example, wastewater generated in the printing and dyeing industry contains organic matters with high concentration, multiple types, harmful components and high chromaticity, and is difficult to be biochemically degraded and seriously pollutes the environment, so the wastewater can be discharged into the environment after being qualified.

At present, the dyeing wastewater treatment process commonly used in China comprises physicochemical or biochemical treatment processes, such as a biological activated sludge pond treatment process, a physicochemical treatment process and the like, and the dyeing wastewater is treated by the treatment processes and then discharged into a municipal sewage pipe network.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a wastewater biochemical treatment system.

The technical scheme of the utility model as follows:

a biochemical wastewater treatment system is used for treating wastewater generated in production of production equipment and comprises a flocculation sedimentation tank, a multi-media filter, an activated carbon filter, a biochemical treatment device, a precision filter and a reverse osmosis device which are sequentially communicated through pipelines, wherein a water inlet end of the reverse osmosis device is communicated with a high-pressure pump, the high-pressure pump is communicated with the precision filter, and clear water outlet ends of the reverse osmosis device and the precision filter are respectively communicated to the production equipment through pipelines.

Furthermore, the flocculation sedimentation tank is provided with a flocculating agent adding port, and a flocculating agent is added into the wastewater for sedimentation.

Further, the multi-media filter is a filter adopting multiple filtering layers.

Furthermore, the multi-media filter can be subjected to back washing and forward washing by a manual valve control or a full-automatic controller.

Further, the activated carbon filter is a nutshell activated carbon filter.

Furthermore, the activated carbon filter can be subjected to back washing and forward washing by using a manual valve control or a full-automatic controller.

Furthermore, biochemical treatment device includes AAO pond and MBR pond, active carbon filter, AAO pond, MBR pond communicate in proper order.

Furthermore, a reverse osmosis membrane is arranged in the reverse osmosis device, and water in the solution is separated out through the reverse osmosis membrane under the high-pressure action of the high-pressure pump.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses an add the flocculating agent in waste water and deposit back filtration, absorption, after the reentrant biochemical treatment, carry out the advanced treatment of waste water through precision filter and reverse osmosis unit for the waste water recycle after handling not only can the water economy resource in industrial production, still can protect the environment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a block diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

Examples

Referring to fig. 1, the utility model provides a biochemical treatment system for waste water for the waste water that produces when handling production facility production, including looping through flocculation and precipitation pond 1, many medium filter 2, activated carbon filter 3, biochemical treatment device 4, precision filter 5 and the reverse osmosis unit 6 that the pipeline is linked together, reverse osmosis unit 6's the end intercommunication of intaking has high-pressure pump 7, just high-pressure pump 7 with precision filter 5 intercommunication, reverse osmosis unit 6 and precision filter 5's clear water outlet end communicates to production facility through the pipeline respectively.

The working principle is as follows:

step one, the wastewater of the electroplating circuit board enters a flocculation and sedimentation tank 1 from a wastewater inlet, the flocculation and sedimentation tank 1 is used for sedimentation by adding a flocculating agent into the wastewater, and the flocculation and sedimentation tank 1 is provided with a flocculating agent adding port.

And step two, removing various suspended matters and particle impurities in the wastewater through a multi-media filter 2 after the precipitation is finished, wherein the multi-media filter 2 is a filter adopting a multi-filtering layer, and mainly aims to remove substances with particles of more than 20 microns such as silt, rust, colloidal substances, suspended matters and the like contained in raw water, and a series of operations such as back washing, forward washing and the like can be carried out by using a manual valve control or a full automatic controller. The water production quality of the equipment is ensured, and the service life of the equipment is prolonged.

And step three, adsorbing by an activated carbon filter 3, wherein the activated carbon filter 3 adopts a shell activated carbon filter, and the activated carbon not only can adsorb electrolyte ions, but also can perform ion exchange adsorption. The oxygen Consumption (COD) of potassium permanganate can be reduced to 2-7 mg/L (O2) from 15mg/L (O2) through activated carbon adsorption, and in addition, the concentration of adsorbed and copied surfaces is increased due to the adsorption effect, so that the catalytic effect is achieved, the pigment, peculiar smell and a large amount of biochemical organic matters in water are removed, the residual chlorine value and pesticide pollutants in the water are reduced, and Trihalide (THM) and other pollutants in the water are removed. A manual valve control or a full-automatic controller can be selected for carrying out a series of operations such as back flushing, forward flushing and the like. The water production quality of the equipment is ensured, and the service life of the equipment is prolonged. Meanwhile, the equipment is provided with a self-maintenance system, and the running cost is very low.

And step four, entering a biochemical treatment device 4, wherein the biochemical treatment device 4 comprises an AAO tank 41 and an MBR tank 42, and the activated carbon filter 3, the AAO tank 41 and the MBR tank 42 are communicated in sequence. The AAO tank 41 can realize the nitrogen and phosphorus removal treatment of the wastewater, then the effluent of the AAO tank 41 enters the MBR tank 42 for treatment, and the physical interception function of the MBR is utilized, so that the concentration of the activated sludge can be effectively improved, and the treatment efficiency is greatly increased.

And step five, the MBR tank 42 enters the precision filter 5 for further water quality treatment, namely, pollutants in the wastewater are further reduced through the precision filter 5, the wastewater is clear and can be used for a process requiring clean water with low water quality in each printing and dyeing process, and then the effluent of the precision filter 5 enters the reverse osmosis device 6 for treatment so as to further perform water quality deepening treatment. The reverse osmosis principle is that water in a solution is separated through a reverse osmosis membrane in a reverse osmosis device 6 under the high-pressure action of a high-pressure pump 7, the outlet water almost can meet the water quality requirement of pure water, the waste water at the moment can be used for a process with higher requirement on the water quality, and the rest waste water is discharged into a municipal pipe network.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a waste water biochemical treatment system for handle the waste water that produces when production facility produced which characterized in that: the device comprises a flocculation sedimentation tank, a multi-media filter, an activated carbon filter, a biochemical treatment device, a precision filter and a reverse osmosis device which are sequentially communicated through pipelines, wherein a water inlet end of the reverse osmosis device is communicated with a high-pressure pump, the high-pressure pump is communicated with the precision filter, and clear water outlet ends of the reverse osmosis device and the precision filter are respectively communicated to production equipment through pipelines.

2. A biochemical wastewater treatment system according to claim 1, characterized in that: the flocculation sedimentation tank is provided with a flocculating agent adding port, and flocculating agent is added into the wastewater for sedimentation.

3. A biochemical wastewater treatment system according to claim 1, characterized in that: the multi-media filter is a filter adopting multiple filtering layers.

4. A biochemical wastewater treatment system according to claim 3, characterized in that: the multi-media filter can be back flushed and positively flushed by a manual valve control or a full automatic controller.

5. A biochemical wastewater treatment system according to claim 1, characterized in that: the activated carbon filter is a nutshell activated carbon filter.

6. A biochemical wastewater treatment system according to claim 5, characterized in that: the activated carbon filter can be back flushed and positively flushed by a manual valve control or a full automatic controller.

7. A biochemical wastewater treatment system according to claim 1, characterized in that: the biochemical treatment device comprises an AAO tank and an MBR tank, and the active carbon filter, the AAO tank and the MBR tank are communicated in sequence.

8. A biochemical wastewater treatment system according to claim 1, characterized in that: and a reverse osmosis membrane is arranged in the reverse osmosis device, and water in the solution is separated out through the reverse osmosis membrane under the high-pressure action of the high-pressure pump.