CN210528720U

CN210528720U - Integrated treatment device for garlic processing wastewater

Info

Publication number: CN210528720U
Application number: CN201921309496.5U
Authority: CN
Inventors: 卓剑锋; 陈春生
Original assignee: Shanxi Zhuoneng Environmental Protection Technology Co Ltd
Current assignee: FUJIAN ANGUAN ENVIRONMENT TECHNOLOGY Co.,Ltd.
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-15
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a garlic processing waste water integration treatment device relates to waste water treatment equipment technical field. The integrated treatment device for the garlic processing wastewater comprises a pretreatment unit and a biological treatment unit which are sequentially communicated, wherein the biological treatment unit comprises an anaerobic contact reactor, a membrane bioreactor and a water outlet pump which are sequentially connected, nano biological filler and a diversion folded plate for guiding wastewater to the nano biological filler are arranged in the anaerobic contact reactor, a membrane biological component is arranged in the membrane bioreactor and used for separating microorganisms and purifying water, the membrane biological component is communicated with the water outlet pump and used for discharging purified water, allicin in the garlic wastewater is reduced to the minimum through pretreatment equipment in the pretreatment, and the inhibitory action of the allicin on organisms is reduced to the minimum so as to adapt to a biological treatment system; meanwhile, the treatment processes such as anaerobic contact, a membrane bioreactor and the like are combined to form the garlic wastewater treatment device which is compact, economical and simple and convenient to operate.

Description

Integrated treatment device for garlic processing wastewater

Technical Field

The utility model relates to the technical field of, especially, relate to a garlic processing waste water integration processing apparatus.

Background

The garlic is planted all over the country in China, the planting area is about 1200 to ten thousand mu, the garlic yield is at the top of the world and accounts for 1/4 of the total world yield, and most enterprises mainly process garlic slices.

The processed garlic products mainly comprise garlic, such as garlic powder, garlic slices, mashed garlic, garlic rice, black garlic, sweet and sour garlic, salted garlic, garlic crisp slices and the like. And products mainly containing functional substances in garlic, namely, products which are subjected to secondary processing by using allicin, garlic oil, alliin, garlic polysaccharide, antioxidant active substances and the like as main functional components relate to health-care food, beverages, wine, seasoning food, medical products, cosmetics, feed and the like, and most enterprises mainly use garlic slice processing as main processing.

The waste water produced by slicing and cleaning garlic contains a large amount of organic pollutants, suspended matters, ammonia nitrogen, garlicin and other substances, wherein the garlicin has strong pungent taste and special spicy taste, is insoluble in water, is an oily liquid, can be mixed with ethanol, diethyl ether, benzene and the like, and belongs to organic matters which are difficult to treat. If the garlic processing sewage is not treated in time, strong odor can be generated, if the garlic processing sewage cannot be completely treated and discharged, a great amount of death of fish, shrimp and water body microorganisms can be caused, and the garlic processing sewage is also a pollution to the environment.

Meanwhile, thioether in the allicin can penetrate through a cell membrane of a pathogen to enter cytoplasm, and a sulfhydryl-containing enzyme is oxidized into a disulfide bond, so that cell division is inhibited, and normal metabolism of microorganisms is destroyed.

Because the sewage concentration is high, and contains substances such as thioether and the like which can inhibit biological metabolism, the treatment of the garlic wastewater has certain technical limitations, the selection of a treatment technology which can minimize the influence of the allicin substance on a biological system is the key point for treating the wastewater, and a general wastewater treatment device cannot treat the wastewater, and has large floor area and much land waste.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a garlic processing waste water integration treatment device.

The technical effects are as follows: in the pretreatment, the allicin substance in the garlic wastewater is reduced to the minimum through pretreatment equipment, and the inhibition effect on organisms is reduced to the minimum so as to adapt to a biological treatment system; meanwhile, anaerobic contact, a membrane bioreactor and other treatment processes are combined, and the treatment processes and equipment are organically combined to form a compact, economical, simple and convenient to operate and efficient garlic wastewater treatment device.

The utility model discloses the technical scheme who further injects is: the utility model provides a garlic processing waste water integration processing apparatus, is including the pretreatment unit and the biological treatment unit that communicate in proper order, and the biological treatment unit is equipped with nanometer type biofilm carrier and is used for leading the water conservancy diversion folded plate of nanometer biofilm carrier with waste water direction including consecutive anaerobic contact reactor, membrane bioreactor and play water pump in the anaerobic contact reactor, is equipped with membrane biological component in the membrane bioreactor for separating microorganism and purified water, membrane biological component and play water pump intercommunication for the discharge purified water.

Furthermore, the pretreatment unit comprises an electric flocculation reactor and a pretreatment reactor communicated with the electric flocculation reactor, the electric flocculation reactor adopts a closed modular reactor, and the pretreatment reactor consists of an air floatation device and a biological selector.

The integrated treatment device for the garlic processing wastewater is characterized in that an activated sludge circulating pump is arranged between the membrane bioreactor and the biological selector, and the membrane bioreactor and the biological selector are communicated through a sludge circulating pipe and used for providing activated sludge for the biological selector.

The integrated treatment device for the garlic processing wastewater is characterized in that electrolysis polar plates which are arranged in a staggered mode are arranged in the electrocoagulation reactor, an air floatation system is arranged in the biological selector, and a water channel for guiding sewage is arranged at the position where the electrocoagulation reactor is communicated with the biological selector and used for guiding the sewage to the bottom of the air floatation system.

The integrated treatment device for the garlic processing wastewater is characterized in that a rapid mixer and an internal settling zone are further arranged in the biological selector and used for mixing wastewater and activated sludge to adsorb garlicin in the wastewater and complete the precipitation of the wastewater, and the internal settling zone is communicated with a sludge internal circulation pump to realize the internal circulation and the external exchange circulation of the sludge.

The integrated treatment device for the garlic processing wastewater is characterized in that the nano biological fillers are arranged at intervals of 300-500 mm, and the water flow direction in the anaerobic contact reactor is from bottom to top so as to ensure that the wastewater is completely contacted with microorganisms.

The utility model has the advantages that:

(1) in the utility model, the electric flocculation technology is combined with the biological selector to be used as pretreatment, the allicin substance in the wastewater is decomposed and biologically adsorbed, and the concentration of the allicin substance is reduced to the minimum so as to adapt to the subsequent biological treatment; this is the greatest innovation of the present device;

(2) in the utility model, the membrane bioreactor is combined with the nanometer biological contact anaerobic, the use of the membrane greatly improves the sludge concentration and the sludge age in the wastewater, the nanometer biological filler is used as a biological carrier to realize the biological diversity, and the impact resistance of the microorganism and the adaptability to the garlicin in the treatment process are improved; this is also an innovation of the present device;

(3) in the utility model, the system equipment has no special technical requirements, the integrated equipment after combination can realize automatic operation, the operation management is simple, and the integrated equipment is suitable for agricultural product processing enterprises;

(4) in the utility model, the allicin substance in the garlic wastewater is reduced to the lowest through the pretreatment equipment in the pretreatment, and the inhibition effect on the organism is reduced to the lowest so as to adapt to a biological treatment system; meanwhile, anaerobic contact, a membrane bioreactor and other treatment processes are combined, and the treatment processes and equipment are organically combined to form a compact, economical, simple and efficient garlic wastewater treatment device;

(5) the utility model discloses in, reduced the occupation of land space of equipment, improved whole filterable effect simultaneously, avoided causing too much soil extravagant when the hawthorn production is in off season.

Drawings

FIG. 1 is a structural view of a pretreatment unit in example 1;

FIG. 2 is a schematic view showing the structure of the biological treatment system according to example 1.

Wherein: 1. a biological treatment unit; 11. an anaerobic contact reactor; 111. nano-type biological fillers; 112. A membrane bio-module; 12. a membrane bioreactor; 13. discharging the water pump; 2. a pre-processing unit; 21. an electrocoagulation reactor; 22. a pretreatment reactor; 221. a biological selector; 23. an activated sludge circulation pump; 24. electrolyzing the polar plate; 25. an air flotation system; 26. a water channel; 27. a rapid mixer; 28. an inner settling zone; 29. a diversion folded plate.

Detailed Description

The integrated garlic processing wastewater treatment device provided by the embodiment has a structure shown in fig. 1-2, and comprises a pretreatment unit 2 and a biological treatment unit 1 which are sequentially communicated, wherein the biological treatment unit 1 comprises an anaerobic contact reactor 11, a membrane bioreactor 12 and a water outlet pump 13 which are sequentially connected, a nano-type biological filler 111 and a diversion folded plate 29 for guiding wastewater to the nano-type biological filler are arranged in the anaerobic contact reactor 11, a membrane biological component 112 is arranged in the membrane bioreactor 12 and used for separating microorganisms and purifying water, and the membrane biological component 112 is communicated with the water outlet pump 13 and used for discharging purified water. The nano biological fillers 111 are arranged at intervals of 300 mm-500 mm, and the water flow direction in the anaerobic contact reactor 11 is from bottom to top so as to ensure the complete contact of the wastewater and the microorganisms.

As shown in fig. 1-2, the pretreatment unit 2 includes an electrocoagulation reactor 21 and a pretreatment reactor 22 communicated therewith, the electrocoagulation reactor 21 is a closed modular reactor, and the pretreatment reactor 22 is composed of an air flotation device and a biological selector 221. An activated sludge circulating pump 23 is arranged between the membrane bioreactor 12 and the biological selector 221, and the two are communicated through a sludge circulating pipe and used for providing activated sludge for the biological selector 221.

As shown in fig. 1-2, the electrolytic plates 24 are disposed in a staggered manner in the electrocoagulation reactor 21, the air flotation system 25 is disposed in the biological selector 221, and a water channel 26 for guiding the sewage is disposed at a position where the electrocoagulation reactor 21 is communicated with the biological selector 221, so as to guide the sewage to the bottom of the air flotation system 25. The biological selector 221 is also provided with a rapid mixer 27 and an internal settling zone 28 for mixing the wastewater and the activated sludge to adsorb the allicin in the wastewater and complete the settling of the wastewater, and the internal settling zone 28 is communicated with a sludge internal circulation pump to realize the internal circulation and the external exchange circulation of the sludge.

Firstly, wastewater enters a pretreatment system, firstly enters a closed bipolar electrocoagulation reactor 21 which is a closed electrochemical reactor, the wastewater is electrolyzed and flocculated when flowing through the reactor, allicin substances are oxidized or flocculated by oxides generated by an anode, and then enters an air flotation system 25, and micro bubbles generated in the electrolysis process can lift and float the generated sludge; the supernatant enters the biological selector 221;

the wastewater is rapidly mixed with the high-concentration activated sludge in the biological selector 221 and is precipitated and separated by the arranged rapid mixer 27, the allicin is adsorbed by the activated sludge with high adsorbability in the mixing process and is then precipitated by the precipitation zone, and the precipitated sludge realizes the internal circulation or external exchange circulation of the sludge through the sludge internal circulation pump; the effluent enters a subsequent treatment stage through a sedimentation tank, and the pretreatment process is finished;

then, the pretreated garlic wastewater enters a biological treatment system, and the arrangement of the diversion folded plate 29 of the anaerobic contact reactor 11 ensures that the wastewater passes through the anaerobic reactor from bottom to top at a certain designed flow rate, and simultaneously ensures that the wastewater is completely contacted with organisms in the rising process, thereby promoting the anaerobic biological action; macromolecular substances in the wastewater are decomposed into small molecules, and gases such as methane are generated;

the anaerobic wastewater enters a subsequent membrane bioreactor 12 which is a combination of an aerobic biological system and a membrane biological component 112, and the arrangement of the membrane biological component 112 ensures the high concentration and stability of the sludge of the biological system; the wastewater after passing through the membrane bioreactor 12 is discharged out through a water outlet by a water outlet pump 13.

Finally, another important function of the membrane bioreactor 12 is to provide a high-concentration sludge source for the biological selector 221, which is realized by the activated sludge circulating pump 23, which continuously delivers the high-dissolved-oxygen and high-concentration activated sludge in the membrane bioreactor 12 to the biological selector 221 at the front end through the sludge circulating pipe, so as to ensure the normal operation of the biological adsorption at the front end.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a garlic processing waste water integration processing apparatus which characterized in that: including pretreatment unit (2) and biological treatment unit (1) that communicate in proper order, biological treatment unit (1) is including consecutive anaerobic contact reactor (11), membrane bioreactor (12) and play water pump (13), be equipped with nanometer type biofilm carrier (111) in anaerobic contact reactor (11) and be used for leading the water conservancy diversion folded plate (29) of nanometer biofilm carrier with waste water, be equipped with membrane biological component (112) in membrane bioreactor (12) for separating microorganism and purifying water, membrane biological component (112) and play water pump (13) intercommunication, be used for discharging the purification water.

2. The integrated garlic processing wastewater treatment device as set forth in claim 1, wherein: the pretreatment unit (2) comprises an electric flocculation reactor (21) and a pretreatment reactor (22) communicated with the electric flocculation reactor, the electric flocculation reactor (21) adopts a closed modular reactor, and the pretreatment reactor (22) consists of an air flotation device and a biological selector (221).

3. The integrated garlic processing wastewater treatment device as set forth in claim 2, wherein: an activated sludge circulating pump (23) is arranged between the membrane bioreactor (12) and the biological selector (221), and the membrane bioreactor and the biological selector are communicated through a sludge circulating pipe and used for providing activated sludge for the biological selector (221).

4. The integrated garlic processing wastewater treatment device as set forth in claim 3, wherein: electrolytic pole plates (24) which are arranged in a staggered mode are arranged in the electric flocculation reactor (21), an air floatation system (25) is arranged in the biological selector (221), and a water channel (26) for guiding sewage is arranged at the position where the electric flocculation reactor (21) is communicated with the biological selector (221) and used for guiding the sewage to the bottom of the air floatation system (25).

5. The integrated garlic processing wastewater treatment device as set forth in claim 4, wherein: the biological selector (221) is also internally provided with a rapid mixer (27) and an internal settling zone (28) for mixing wastewater and activated sludge to adsorb allicin in the wastewater and complete the settling of the wastewater, and the internal settling zone (28) is communicated with a sludge internal circulation pump to realize the internal circulation and the external exchange circulation of the sludge.

6. The integrated garlic processing wastewater treatment device as set forth in claim 5, wherein: the nano biological fillers (111) are arranged at intervals of 300-500 mm, and the water flow direction in the anaerobic contact reactor (11) is from bottom to top so as to ensure the complete contact of the wastewater and microorganisms.