CN205590502U - Waste water treatment equipment is pickled to integration pickles - Google Patents
Waste water treatment equipment is pickled to integration pickles Download PDFInfo
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- CN205590502U CN205590502U CN201620204810.3U CN201620204810U CN205590502U CN 205590502 U CN205590502 U CN 205590502U CN 201620204810 U CN201620204810 U CN 201620204810U CN 205590502 U CN205590502 U CN 205590502U
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Landscapes
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a waste water treatment equipment is pickled to integration pickles includes from the water inlet to the delivery port in proper order: neutralization pond, air supporting pond, hydrolysis -acidification pool, contact oxidation tank, primary sedimentation tank, oxygen deficiency pond, good oxygen pond, two sink ponds, degree of depth filtering pond, the bottom of stating primary sedimentation tank is provided with the back flow and is connected to contact oxidation tank, two heavy bottom of the pool portions are provided with the back flow and are connected to the oxygen deficiency pond, become reconciled the oxygen pond and all adopt upflow rivers structure in hydrolysis -acidification pool, contact oxidation tank, oxygen deficiency pond, become reconciled and all are provided with the suspension in the oxygen pond and pack in hydrolysis -acidification pool, contact oxidation tank, oxygen deficiency pond. The utility model is suitable for an useless treatment of water is pickled to pickles, and what be applicable to also that quality of water approaches that pickles pickle waste water contains salt organic wastewater and regeneration, has good social effect.
Description
Technical field
This utility model belongs to waste water Treatment and recovery field, is specifically related to integration pickled vegetable sewage treatment equipment.
Background technology
The production waste discharge of Pickles factory mostlys come from pickle production, the link such as eluriates, squeezes and pickle, and waste water transnormal items is COD, BOD5, SS, colourity, ammonia nitrogen etc..This kind of waste water is rich in organic carbon hydrate and protein, after entering water body, degrade under the effect of microbial hydrolase, degradation process consumes a large amount of dissolved oxygen, easily cause oxygen in water not enough, make anaerobic fermentation of organisms cause water body blackout smelly.Therefore this waste water is harmful to nontoxic, belongs to the organic wastewater that high concentration biodegradability is strong.Also having more NaCl in the waste water of pickle production, the osmotic pressure that high salinity causes can increase the inhibitory action to microorganism.
At present, traditional sewage treatment process exists that capacity of resisting impact load is poor, floor space big, Sewage Disposal exists the deficiencies such as negatively influencing to surrounding, and the high salinity of pickled vegetable waste water is also applied to produce restriction simultaneously.Therefore, new applicable brine waste, capacity of resisting impact load are strong, compact conformation, stable, do not produce environmental pollution and sewage source required, and low pickled vegetable sewage treatment equipment becomes necessary technology requirement.This utility model is applicable not only to the process of pickled vegetable waste water, be also applied for water quality close to pickled vegetable waste water salt-containing organic wastewater process and regeneration, sewage disposal and recycling to Pickles industry have wide applicability.
Summary of the invention
The purpose of this utility model is to research and analyse on existing pickled vegetable waste water quality and existing process Process ba-sis, a kind of integration pickled vegetable sewage treatment equipment that pretreatment, Two-Stage Biochemical process and advanced treating are organically combined and propose by the feature unstable for existing saliferous pickle wastewater treatment effect, floor space big, effluent quality is the most up to standard, operating cost is high.Its core process be neutralize, pneumatically supported on the basis of, utilize the combination of Two-Stage Biochemical processing unit and advanced treatment unit so that Pickles sewage can stable operation, reach more than the primary standard of " integrated wastewater discharge standard " (GB8978-96).
For achieving the above object, this utility model adopts the following technical scheme that
Integration pickled vegetable sewage treatment equipment, including neutralization pond, flotation tank, hydrolysis acidification pool, contact-oxidation pool, primary sedimentation pond, anoxic pond, Aerobic Pond, second pond, degree of depth filter tank, the bottom of described primary sedimentation pond is provided with return duct and is connected to contact-oxidation pool, it is provided with return duct bottom described second pond and is connected to anoxic pond, described hydrolysis acidification pool, contact-oxidation pool, anoxic pond and Aerobic Pond all use up-flow water flow structure, are provided with floating stuffing in described hydrolysis acidification pool, contact-oxidation pool, anoxic pond and Aerobic Pond.
In technique scheme, neutralization agitator is set, for pickled vegetable waste water is carried out acid-base neutralization, it is ensured that the water quality after neutralization is in neutral range in described neutralization pond.
In technique scheme, arranging boring aeration pipe bottom described flotation tank, top arranges Slag Scraping Device, is removed the solid matter in sewage.
In technique scheme, described hydrolysis acidification pool uses up-flow water flow structure, and inlet channel uses perforation water distributor to be arranged in cell body front bottom end, and outlet conduit is arranged in cell body upper rear end, outlet conduit and contact-oxidation pool inlet channel UNICOM.
In technique scheme, being respectively provided with filler inside described hydrolysis acidification pool, wire feeding is floating stuffing.
In technique scheme, arranging submersible agitator bottom described hydrolysis acidification pool, submersible agitator uses hollow type steel cage to close, and prevents from destroying filler.
In technique scheme, described contact-oxidation pool uses up-flow water flow structure, and inlet channel uses perforation water distributor to be arranged in cell body front bottom end, and outlet conduit is arranged in cell body upper rear end, outlet conduit and primary sedimentation pond inlet channel UNICOM.
In technique scheme, being respectively provided with filler inside described contact-oxidation pool, wire feeding is floating stuffing.
In technique scheme, being respectively provided with micro-hole aerator bottom described contact-oxidation pool, micro-hole aerator is attached with aerator by air line, for carrying out aeration in contact-oxidation pool, it is ensured that the dissolved oxygen in contact-oxidation pool has been in oxygen condition.
In technique scheme, arranging inclined tube filler inside described primary sedimentation pond, inlet channel is arranged in the middle part of primary sedimentation pond, and water outlet uses downflow weir form, is arranged in around primary sedimentation pond.Primary sedimentation pond water outlet is by pipeline and anoxic pond UNICOM.
In technique scheme, arranging sludge pipe bottom described primary sedimentation pond, sludge pipe is connected with sludge pump, and the port of export of sludge pump connects mud return line and mud discharging pipe respectively by threeway；Mud return line is connected to contact-oxidation pool upper front end, and mud discharging pipe is connected to sludge-tank.
In technique scheme, described anoxic pond uses up-flow water flow structure, and inlet channel uses perforation water distributor to be arranged in cell body front bottom end, and outlet conduit is arranged in cell body upper rear end, outlet conduit and Aerobic Pond inlet channel UNICOM.
In technique scheme, being respectively provided with filler inside described anoxic pond, wire feeding is floating stuffing.
In technique scheme, arranging submersible agitator bottom described anoxic pond, submersible agitator uses hollow type steel cage to close, and prevents from destroying filler.
In technique scheme, described Aerobic Pond uses up-flow water flow structure, and inlet channel uses perforation water distributor to be arranged in cell body front bottom end, and outlet conduit is arranged in cell body upper rear end, outlet conduit and second pond inlet channel UNICOM.
In technique scheme, being respectively provided with filler inside described Aerobic Pond, wire feeding is floating stuffing.
In technique scheme, being respectively provided with micro-hole aerator bottom described Aerobic Pond, micro-hole aerator is attached with aerator by air line, for carrying out aeration in Aerobic Pond, it is ensured that the dissolved oxygen in Aerobic Pond has been in oxygen condition.
In technique scheme, arranging inclined tube filler inside described second pond, inlet channel is arranged in the middle part of second pond, and water outlet uses downflow weir form, is arranged in around second pond.Secondary clarifier effluent is by pipeline and depth-type filtration pond UNICOM.
In technique scheme, arranging sludge pipe bottom described second pond, sludge pipe is connected with sludge pump, and the port of export of sludge pump connects mud return line and mud discharging pipe respectively by threeway；Mud return line is connected to anoxic pond upper front end, and mud discharging pipe is connected to sludge-tank.
In technique scheme, described depth-type filtration pond uses up-flow water flow structure, internal setting to arrange the grains of sand of different-grain diameter from bottom to top, and the sewage after processing is carried out depth-type filtration.
In technique scheme, described ultraviolet ray disinfector is connected on the outlet conduit in depth-type filtration pond.
In this utility model, biochemical treatment unit uses Two-Stage Biochemical tupe, first order biochemistry unit uses hydrolysis acidification pool and contact-oxidation pool combination, in hydrolysis acidification pool, larger molecular organics is degraded into small organic molecule by hydrolysis bacterium, it is easy to the carrying out of subsequent biochemical reaction, by high microorganism amount in contact-oxidation pool, it is achieved Adsorption of Organic and oxidation；Second segment uses anaerobic-aerobic to process technique, it is achieved Organic substance removal up to standard and denitrogenation, wherein hypoxia response, it is achieved denitrification denitrogenation.After hydrolysis acidification, mix wastewater biodegradability can be improved, it is ensured that aerobic treatment unit process efficiency simultaneously.Aerobic section realizes Organic substance removal up to standard, and possesses nitrification function, and utilizing nitrifier to convert ammonia nitrogen is nitrate nitrogen.
Compared with prior art, its technical advantage is mainly reflected in this utility model:
(1) pretreatment, biological treatment and advanced treating are organically combined, reduce floor space and construction cost, it is achieved pickled vegetable waste water close-coupled processing.Construction cost saves more than 30% than conventional processes, floor space reduces more than 50%, mud in the biochemistry pools such as hydrolysis acidification pool, contact-oxidation pool, anoxic pond and Aerobic Pond is made up of the micropopulation in the micropopulation of biomembrane form of fixed growth and the activated sludge of suspension growth, and sludge concentration is up to 20 30g/L.Because growth of microorganism is on filler, do not run off with water outlet, therefore extend time of staying of mud i.e. mud age, thus when identical treatment effect, ask when just shortening waste water hydraulic retention in reactor.It is simultaneously achieved full-automatic unmanned operations on duty in 24 hours of system.
(2) strong adaptability to high saliferous pickled vegetable waste water, system run all right.As long as the salinity controlling to intake is within 2 degree, when fluctuating margin is less than 1 degree simultaneously, system microbial activity is strong, and effluent quality by its salinity influence of fluctuations, does not effectively overcome the problem that the fluctuation of conventional Kimchi waste water treatment process effluent quality is big.
(3) comparing with biomembrance process with conventional activated sludge process, Two-Stage Biochemical unit is when processing dissolubility high concentration pickled vegetable waste water, and volumetric loading can be up to 16kgC0Dcr/(m3D), the volume making reactor is greatly reduced.Engineering practice shows, in the case of the external conditions such as temperature are identical, the load in Two-Stage Biochemical pond can exceed 2～3 times of conventional contacts method, and has higher C0D clearance, can reach more than 98%.
(4) anaerobic sludge regularity of distribution in hydrolysis acidification pool makes reactor higher to the adaptation ability of noxious substance, being prone to turn out the anaerobic sludge adapting to noxious substance in pond, biodegradable toxicant concentration in reactor also presents the change of regularity.Therefore, in the case of the process water yield and load have large change, it runs the stability that can keep bigger.
(5) the start-up method of integration pickled vegetable waste water is essentially identical with biomembrance process, can use and directly cultivate or ask and connect culture method.But owing to having filler as carrier, it appears be relatively easy to, in the case of various conditions are suitable for, typically have only to 25～40 days to complete.
(6) depth-type filtration pond and ultraviolet ray disinfector are combined at equipment end by integration pickled vegetable sewage treatment equipment, the advanced treating of sewage and reuse can be played positive role.
(7) integration pickled vegetable sewage treatment equipment is applicable to the process of pickled vegetable waste water, is also applied for water quality and processes and regeneration close to the salt-containing organic wastewater of pickled vegetable waste water, has good social effect.
Accompanying drawing explanation
Fig. 1 is structural manufacturing process figure of the present utility model；
Wherein: 1 be neutralization pond, 2 be flotation tank, 3 be hydrolysis acidification pool, 4 be contact-oxidation pool, 5 be primary sedimentation pond, 6 be anoxic pond, 7 be Aerobic Pond, 8 be second pond, 9 be depth-type filtration pond, 10 be ultraviolet ray disinfector.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As it is shown in figure 1, integration pickled vegetable sewage treatment equipment described in the utility model comprises the unit such as neutralization pond, flotation tank, hydrolysis acidification pool, contact-oxidation pool, primary sedimentation pond, anoxic pond, Aerobic Pond, second pond, degree of depth filter tank and disinfection by ultraviolet light.Sewage sequentially enters neutralization pond, flotation tank, hydrolysis acidification pool, contact-oxidation pool, primary sedimentation pond, anoxic pond, Aerobic Pond, second pond, degree of depth filter tank and disinfection by ultraviolet light after pretreatment.Primary sedimentation pond sludge reflux is all emitted into sludge-tank outward transport to contact-oxidation pool, second pond sludge reflux to anoxic pond, sedimentation tank excess sludge.
Integration pickled vegetable sewage treatment equipment is processed by pretreatment unit (neutralization pond and flotation tank), Two-Stage Biochemical processing unit and advanced treatment unit (depth-type filtration pond and ultraviolet ray disinfector) and forms.Neutralization agitator is set in neutralization pond, for pickled vegetable waste water is carried out acid-base neutralization, it is ensured that the water quality after neutralization is in neutral range.Arranging boring aeration pipe bottom flotation tank, top arranges Slag Scraping Device, is removed the solid matter in sewage.Two-Stage Biochemical processing unit is made up of hydrolysis acidification pool, contact-oxidation pool, primary sedimentation pond, anoxic pond, Aerobic Pond, second pond, is the core processing unit of integration pickled vegetable sewage treatment equipment.All load in biochemistry pool and provide the surface of apposition growth and the particular fillers in the space of suspension growth for microorganism.Have with the micropopulation of biomembrane form growth on the surface of biochemical filler, constitute the major part of biochemical unit microorganism, and be trapped within the space between filler, micropopulation in the activated sludge of suspension growth, be the secondary part of biochemical unit microorganism.When sewage flows through packing layer, wherein Organic substance is retained by anaerobism, anoxia and aerobic microbiological respectively, adsorbs and metabolic breakdown, finally reaches stabilisation, produces biogas simultaneously, forms new biomembrane.Secondary biochemical treatment unit all uses up-flow water flow structure, and inlet channel uses perforation water distributor to be arranged in cell body front bottom end, and outlet conduit is arranged in cell body upper rear end.Being respectively provided with submersible agitator bottom hydrolysis acidification pool and anoxic pond, submersible agitator uses hollow type steel cage to close, and prevents from destroying filler.
In the biochemical treatment of the first order, using hydrolysis acidification pool and contact-oxidation pool combination, hydrolysis acidification pool belongs to anaerobic treatment process, during anaerobic treatment, Organic substance in waste water, through the common effect of a large amount of microorganisms, is eventually converted into methane, carbon dioxide, water, hydrogen sulfide and ammonia etc..In the process, the metabolic process of different microorganisms influences each other, and mutually restricts, and defines the ecosystem of complexity.The anaerobic degradation process of macromolecule organic is divided into four-stage: hydrolysis stage, fermentation (or acidifying) stage, produce acetic acid stage and methane phase stage.
Hydrolysis stage is that the polymer of complicated non-solubility is converted into simple dissolubility monomer or dimeric process.Macromolecule organic is huge because of relative molecular weight, it is impossible to through cell membrane, therefore can not directly utilize for antibacterial.They are decomposed into little molecule in the first stage by antibacterial exoenzyme.Such as, cellulose is cellobiose and glucose by cellulase hydrolysis, and starch is maltose and glucose by Amylase Hydrolysis, and protein is small peptide and aminoacid etc. by proteolytic.The hydrolyzate of these little molecules can be dissolved in water and be utilized by antibacterial through cell membrane.Hydrolytic process is the slowest, is therefore considered as pbz polymer Organic substance or the rate-limiting step of float waste liquid anaerobic degradation.Many factors such as temperature, organic composition, the concentration etc. of hydrolyzate may affect the speed of hydrolysis and the degree of hydrolysis.
Fermentation stage be organic compound be both also the biodegradation process of electron donor as electron acceptor, dissolved organic matter is converted into the end products based on volatile fatty acid in the process, therefore the also referred to as acidifying of this process.In this stage, the cellular transformation of the compound zymogenous bacteria (being i.e. acidified bacterium) of above-mentioned little molecule is for the simplest compound and is secreted into extracellular.The zymogenous bacteria overwhelming majority is strict anaerobes, but generally has the facultative anaerobe of about 1% to be present in anaerobic environment, these facultative anaerobes can play protection as methane backeria strict anaerobes from the infringement of oxygen and suppression.The primary product in this stage has volatile fatty acid, alcohols, lactic acid, carbon dioxide, hydrogen, ammonia, hydrogen sulfide etc., and the composition of product depends on the condition of anaerobic degradation, substrate kind and the microbial population of participation acidifying.Meanwhile, acidifying bacterium also utilizes the cellular material that moieties synthesis is new, therefore, produces more excess sludge during not-acidified Anaerobic wastewater treatment.In anaerobic degradation process, the tolerance of acid must be taken in by acidification bacteria.Can be able to carry out when acidization pH drops to 4.But the scope of methane phase process pH value is between 6.5～7.5, therefore the decline of pH value will reduce the generation of methane and the consumption of hydrogen, and causes the change of acidifying end products composition further.
Product acid phase is under the effect of hydrogen-producing acetogens, and product on last stage is converted further as acetic acid, hydrogen, carbonic acid and new cellular material.In the methane phase stage, acetic acid, hydrogen, carbonic acid, formic acid and methanol are converted into methane, carbon dioxide and new cellular material.The process that acetic acid, acetate, carbon dioxide and hydrogen etc. are converted into methane is had two kinds of methanogens the most different to complete by methanogen, one group becomes methane hydrogen with carbon dioxide conversion, another group produces methane from acetic acid or acetate decarboxylation, and the former accounts for the 1/3 of total amount, and the latter accounts for 2/3.
Contact-oxidation pool and Aerobic Pond are respectively provided with micro-hole aerator and air line, and its air is provided by swinging blower fan or roots blower, and maximum gas-water ratio is 5:1, use low pressure form that it is carried out aeration.In contact-oxidation pool and Aerobic Pond, floating stuffing is set, aeration at the bottom of pond carries out oxygenation to sewage, and sewage is in flow regime in making cell body, to ensure that sewage is fully contacted with the filler in sewage, it is to avoid biological contact oxidation pond contacts the defect of inequality with there is sewage in Aerobic Pond with filler.
Arranging inclined tube filler inside primary sedimentation pond and second pond, inlet channel is arranged in the middle part of primary sedimentation pond and second pond, and water outlet uses downflow weir form, is arranged in around primary sedimentation pond and second pond.
Arranging sludge pipe bottom primary sedimentation pond and second pond, sludge pipe is connected with sludge pump, and the port of export of sludge pump connects mud return line and mud discharging pipe respectively by threeway；The mud return line of primary sedimentation pond is connected to contact-oxidation pool front end, and the mud return line of second pond is connected to anoxic pond upper front end；The mud discharging pipe of primary sedimentation pond and second pond is connected to sludge-tank.
All features disclosed in this specification, in addition to mutually exclusive feature, all can combine by any way.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (9)
1. an integrated pickled vegetable sewage treatment equipment, it is characterised in that include successively from water inlet to outlet: neutralization pond, flotation tank, hydrolysis acidification pool, contact-oxidation pool, primary sedimentation pond, anoxic pond, Aerobic Pond, second pond, degree of depth filter tank,
The bottom of described primary sedimentation pond is provided with return duct and is connected to contact-oxidation pool,
It is provided with return duct bottom described second pond and is connected to anoxic pond,
Described hydrolysis acidification pool, contact-oxidation pool, anoxic pond and Aerobic Pond all use up-flow water flow structure, are provided with floating stuffing in described hydrolysis acidification pool, contact-oxidation pool, anoxic pond and Aerobic Pond.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 1, it is characterised in that in described neutralization pond, agitator is set.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 1, it is characterised in that arranging boring aeration pipe bottom described flotation tank, flotation tank top arranges Slag Scraping Device.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 1, it is characterised in that described up-flow water flow structure is included in bottom cell body and arranges perforation water distributor, and cell body top arranges outlet pipe.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 4, it is characterised in that described perforation water distributor is arranged on cell body bottom front, and outlet pipe is arranged on cell body top rear.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 1, it is characterised in that the bottom in described contact-oxidation pool is provided with micro-hole aerator.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 1, it is characterised in that being provided with submersible agitator bottom described anoxic pond, submersible agitator is outside equipped with hollow type steel cage.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 1, it is characterised in that be provided with some inclined tubes in described primary sedimentation pond, second pond, be filled with filler in each inclined tube.
A kind of integration pickled vegetable sewage treatment equipment the most according to claim 8, it is characterised in that in described primary sedimentation pond, second pond, middle part arranges water inlet, and rear end side wall upper part is provided with overflow crest of weir.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111043A (en) * | 2018-09-16 | 2019-01-01 | 毛强平 | A kind of processing method of high-COD waste water with high salt |
| CN109734252A (en) * | 2019-03-07 | 2019-05-10 | 四川舜瑞环境科技有限公司 | A kind of system and method handling pickle wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109111043A (en) * | 2018-09-16 | 2019-01-01 | 毛强平 | A kind of processing method of high-COD waste water with high salt |
| CN109111043B (en) * | 2018-09-16 | 2021-11-09 | 苏州渭中科技发展有限公司 | Treatment method of high-salt high-COD wastewater |
| CN109734252A (en) * | 2019-03-07 | 2019-05-10 | 四川舜瑞环境科技有限公司 | A kind of system and method handling pickle wastewater |
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