CN204675971U - The biochemical processing device of lower concentration cutting fluid sewage - Google Patents
The biochemical processing device of lower concentration cutting fluid sewage Download PDFInfo
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- CN204675971U CN204675971U CN201520373770.0U CN201520373770U CN204675971U CN 204675971 U CN204675971 U CN 204675971U CN 201520373770 U CN201520373770 U CN 201520373770U CN 204675971 U CN204675971 U CN 204675971U
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- pond
- oxidation
- active charcoal
- cutting fluid
- lower concentration
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Abstract
The utility model discloses a kind of biochemical processing device of lower concentration cutting fluid sewage, it comprises oxygenation pond, active charcoal sludge oxidation pond, contact-oxidation pool, described oxygenation pond is connected with the bottom of active charcoal sludge oxidation pond, centre is provided with dividing plate, oxygenation pond is provided with import and jet aerator, the outside in oxygenation pond is provided with recirculation water lift pump, and recirculation water lift pump is connected with the import of jet aerator through pipeline; Active charcoal sludge is provided with in described active charcoal sludge oxidation pond; The middle part of described contact-oxidation pool is provided with biologic packing material, is provided with outlet valve below sidewall, and the bottom of contact-oxidation pool is provided with outlet, exports and is connected with mud valve with reverse flow valve through pipeline, and reverse flow valve is connected with jet aerator through pipeline; The common side-wall of described contact-oxidation pool and active charcoal sludge oxidation pond is provided with pipe connecting, and pipe connecting is provided with communicating valve.The utility model has the advantages that equipment simplifies, treatment effect is good, is very suitable for the biochemical treatment of lower concentration cutting fluid sewage.
Description
Technical field
The utility model relates to a kind of biochemical wastewater treatment equipment, is specifically related to a kind of biochemical processing device of lower concentration cutting fluid sewage.
Background technology
Waste water in metal machining process is mainly from cooling fluid, organic cleaning fluid, painting wastewater, electrical spark working fluid etc., amount less but organic concentration is very high, generally all will after physics or chemical process carry out pre-treatment, become lower concentration cutting fluid sewage, just can carry out subsequent biochemical process can discharge or supply water of productive use, do decreasing pollution on the one hand like this, the purposes of process water is provided on the other hand.But, in recent years along with the progress of metal machining production technology, the emulsion stability used is more and more higher, and this kind of waste component is more complicated, biodegradability is poor and have certain toxicity, therefore carries out pretreated lower concentration cutting fluid sewage and still deposits complicated composition and toxicity.At present, both at home and abroad process lower concentration cutting fluid sewage mainly adopts the technology such as routine biochemistry technique, sand filtration, carbon adsorption, ultra filtering reverse osmosis, but these methods be all difficult to realize long period stable, effectively process.Be mainly reflected in: 1, routine biochemistry art breading cutting fluid sewage weak effect; 2, sand filtration cannot retain soluble pollutants in cutting fluid; 3, carbon adsorption easily saturated, cannot regenerate, cause secondary pollution; 4, it is large that ultra filtering reverse osmosis technological investment is high, film blocks up intractability, is unsuitable for processing organic complicated sewage.In addition, even if current existing Cutting Liquid Wastewater is through effective pre-treatment, though concentration declines to some extent, such sewage of low concentration adopts conventional biochemical processing method, the treatment effect that still can not reach because of it.
Summary of the invention
The purpose of this utility model is to provide a kind of and has the efficient oxygenation of jet-flow aeration concurrently, charcoal absorption is combined with active sludge, the biochemical processing device of catalytic oxidation embrane method technical finesse lower concentration cutting fluid sewage, the existing good effluent cycle condition of this equipment, different at each stage dissolved oxygen concentration height, can denitrification dephosphorization function be realized; Can carry out again desirable gravity and staticly settle layering, mud is separated thoroughly with water, the treatment effect reached.
For achieving the above object, the biochemical processing device of the utility model lower concentration cutting fluid sewage, it comprises oxygenation pond, active charcoal sludge oxidation pond, contact-oxidation pool, described oxygenation pond is connected with the bottom of active charcoal sludge oxidation pond, centre is provided with dividing plate, oxygenation pond is provided with import and jet aerator, the outside in oxygenation pond is provided with recirculation water lift pump, and recirculation water lift pump is connected with the import of jet aerator through pipeline; Active charcoal sludge is provided with in described active charcoal sludge oxidation pond; The middle part of described contact-oxidation pool is provided with biologic packing material, is provided with outlet valve below sidewall, and the bottom of contact-oxidation pool is provided with outlet, exports and is connected with mud valve with reverse flow valve through pipeline, and reverse flow valve is connected with jet aerator through pipeline; The common side-wall of described contact-oxidation pool and active charcoal sludge oxidation pond is provided with pipe connecting, pipe connecting is provided with communicating valve.
Described oxygenation pond is set to square or circular.
Described active charcoal sludge oxidation pond is set to square or circular.
The top of described contact-oxidation pool is set to square or circular, and it is bucket-shaped that bottom is set to cone.
After adopting technique scheme, by arranging jet aerator on oxygenation pond, lower concentration cutting fluid sewage enters behind oxygenation pond under jet aerator effect, and recirculation water carries sufficient dissolved oxygen and enters in oxygenation pond, makes the water body of lower concentration cutting fluid sewage obtain oxygenation; By arranging active charcoal sludge in active charcoal sludge oxidation pond, active charcoal sludge is made up of gac and active sludge, like this without the need to pressurized air oxygen supply and stirring, lower concentration cutting fluid sewage enters in active charcoal sludge oxidation pond under the current agitaion of jet-flow aeration, existing enough dissolved oxygens, can make again active charcoal sludge be suspended state, are conducive to mud method bio-oxidation, and the active charcoal sludge Biochemical Treatment that gac and active sludge are combined into is good, be very suitable for process difficult degradation sewage; By installing biologic packing material at the middle part of contact-oxidation pool, the sewage in such contact-oxidation pool because of containing dissolved oxygen, and can carry out embrane method bio-oxidation on biologic packing material, and consumption dissolved oxygen, makes sewage thoroughly be purified.The utility model carries out optimum combination dexterously, equipment is succinct, existing good effluent cycle condition, different at each stage dissolved oxygen concentration height, can realize denitrification dephosphorization function; Can carry out again desirable gravity and staticly settle layering, mud is separated with water thoroughly, can obtain the process water outlet of high-quality.Low cutting fluid sewage is after the utility model process, and water outlet COD can be down to below 100mg/L, meets the national standard of wastewater disposition.Therefore, the utility model has equipment simplification, reasonable in technology, feature that treatment effect is good, is very suitable for the secondary biochemical treatment of lower concentration cutting fluid sewage.
Further, described oxygenation pond is set to square or circular, is convenient to recirculation water and carries the oxidation effect that sufficient dissolved oxygen enters raising sewage in oxygenation pond.
Further, described active charcoal sludge oxidation pond is set to square or circular, and sewage flows into, under the current agitaion of jet-flow aeration from the bottom of side, oxygenation pond, active charcoal sludge is suspended state, improves sewage and carries out mud method bio-oxidation treatment effect at active charcoal sludge oxidation pond.
Further, the top of described contact-oxidation pool is set to square or circular, and it is bucket-shaped that bottom is set to cone, has embrane method biooxidation reactions and desirable gravitational settling effect concurrently, improves the decontamination effect improving of sewage.
The utility model has following characteristics and advantage:
1, the utility model is suitable for processing lower concentration cutting fluid sewage after pretreatment, and water outlet COD can be down to below 100mg/L, meets the national standard of wastewater disposition.
2, the B-grade sewage treatment technology that the utility model is comprehensively outstanding at present, and optimum combination dexterously, equipment is succinct; Active charcoal sludge method, contact oxidation method combine, and treatment effect is good; The existing good effluent cycle condition of the utility model, different at each stage dissolved oxygen concentration height, can denitrification dephosphorization function be realized; Can carry out again desirable gravity and staticly settle layering, mud is separated with water thoroughly, can obtain the process water outlet of high-quality.
3, the utility model device structure is reasonable, operational management simple, in conjunction with automation control system, can realize time variable control.
Accompanying drawing explanation
Fig. 1 is the biochemical processing device structural representation of the utility model lower concentration cutting fluid sewage.
Embodiment
Be described further below in conjunction with the biochemical processing device of accompanying drawing to the utility model lower concentration cutting fluid sewage;
As shown in Figure 1, the biochemical processing device of lower concentration cutting fluid sewage of the present utility model, it comprises oxygenation pond 1, active charcoal sludge oxidation pond 2, contact-oxidation pool 3, described oxygenation pond 1 is connected with the bottom of active charcoal sludge oxidation pond 2, centre is provided with dividing plate 4, oxygenation pond 1 is provided with import 11 and jet aerator 12, the outside in oxygenation pond 1 is provided with recirculation water lift pump 5, and recirculation water lift pump 5 is connected through the import of pipeline with jet aerator 12; Active charcoal sludge 21 is provided with in described active charcoal sludge oxidation pond 2; The middle part of described contact-oxidation pool 3 is provided with biologic packing material 31, outlet valve 32 is provided with below sidewall, the bottom of contact-oxidation pool 3 is provided with outlet 33, and outlet 33 is connected with mud valve 35 with reverse flow valve 34 through pipeline, and reverse flow valve 34 is connected with jet aerator 12 through pipeline; Described contact-oxidation pool 3 and the common side-wall of active charcoal sludge oxidation pond 2 are provided with pipe connecting 6, pipe connecting 6 are provided with communicating valve 61.
See Fig. 1, the utility model, when assembling use, divides following steps:
1, fill phase.Close outlet valve 32, mud valve 35, open reverse flow valve 34, communicating valve 61, the cutting fluid sewage that about 5 tons of COD concentration are about 1500mg/L is injected 1 li, oxygenation pond from water-in 11, and sewage connected region bottom oxygenation pond 1 enters active charcoal sludge oxidation pond 2 li, then enters contact-oxidation pool 3 li; When reaching high liquid level to each pit level, start recirculation water lift pump 5, control water flow about 5t/h, discharge pressure about 0.1MPa; Reach to each pit level and normally run liquid level, close the valve of water-in 11, water inlet end of processing.
2, biochemical treatment process.The sewage that oxygenation pond is 1 li is under the effect of jet aerator 12, and recirculation water carries sufficient dissolved oxygen and enters in oxygenation pond 1, makes sewage water body obtain oxygenation, and jet-flow aeration coefficient of oxygen utilization can reach more than 30%, dissolved oxygen can reach 4.0mg/L; In active charcoal sludge oxidation pond 2, sewage flows into from a side bottom in oxygenation pond 1, under the current agitaion of jet aerator 12, active charcoal sludge 21 is in suspended state, and sewage carries out the process of mud method bio-oxidation in active charcoal sludge oxidation pond 2, sewage after process enters contact-oxidation pool 3 li from top overflow, entering the region of biologic packing material 31 under gravity, because containing dissolved oxygen in sewage, biologic packing material 31 carrying out embrane method bio-oxidation, consume dissolved oxygen, sewage is purified; Below 0.5mg/L is down at the middle and lower part dissolved oxygen of biologic packing material 31, under facultative anaerobe or anerobe effect, can realize denitrification dephosphorization function, sewage comes downwards to the bottom of contact-oxidation pool 3 li, be back to oxygenation pond 1 again through reverse flow valve 34, recirculation water lift pump 5, circulation repeatedly.
3, reaction end, spoil disposal draining.After biochemical treatment end of processing, stoppage in transit recirculation water lift pump 5, closing volume valve 34, now oxygenation pond 1, active charcoal sludge oxidation pond 2, contact-oxidation pool 3 are all in gravity settling stratification state, treat that clear water and mud layering terminate, first open the mud valve 35 bottom contact-oxidation pool 3, after discharging a small amount of excess sludge, close mud valve 35; Open Graceful water valve 32, communicating valve 61 again, the clear water after being terminated by biochemical degradation discharges present treatment equipment
In the present embodiment, the useful volume in oxygenation pond 1 is 0.5m
3, active charcoal sludge oxidation pond 2 useful volume is 2.0m
3, contact-oxidation pool 3 useful volume be 2.5m
3, be conducive to each pond and fully react, improve Biochemical Treatment; When fill phase sewage to each pit level reaches high liquid level, start recirculation water lift pump 5, control water flow about 5t/h, discharge pressure about 0.1MPa, adopt the efficient oxygenation of collection jet-flow aeration, improve the oxidation effect of sewage in oxygenation pond; In active charcoal sludge oxidation pond 3, sewage is carrying out the process of mud method bio-oxidation, controls sludge concentration MLSS and is about about 8g/L, is below 2.0mg/L at outlet area dissolved oxygen, is conducive to improving decontamination effect improving.
By detecting, through the sewage of the utility model biochemical treatment, water outlet COD is down to below 100mg/L, and per cycle of operation discharges excess sludge and is about 1.0kg; After process, clear water can directly discharge, or enters the process of reusing sewage facility; Excess sludge carries out drying and other treatment after collecting and outward transport is disposed.
In the present embodiment, described oxygenation pond 1 is set to square or circular, is convenient to recirculation water and carries the oxidation effect that sufficient dissolved oxygen enters raising sewage in oxygenation pond; Described active charcoal sludge oxidation pond 2 is set to square or circular, gac and active sludge is adopted to be combined into active charcoal sludge 21 as mud method process form, sewage flows into from the bottom of side, oxygenation pond 1, under the current agitaion of jet-flow aeration, active charcoal sludge 21, in suspended state, improves sewage and carries out mud method bio-oxidation treatment effect at active charcoal sludge oxidation pond 2; The top of described contact-oxidation pool 3 is set to square or circular, it is bucket-shaped that bottom is set to cone, the apparatus-form adopting contact oxidation technology to combine with standing gravitational settling method, has embrane method biooxidation reactions and desirable gravitational settling effect concurrently, improves the decontamination effect improving of sewage.
The utility model is few for low-concentration metallic processing cutting fluid sewage quantity after pretreatment, biodegradability is poor, the feature of difficult degradation, the treatment technologies such as employing integrates the efficient oxygenation of jet-flow aeration, charcoal absorption combines with active sludge, the process of catalytic oxidation embrane method, adopt interval sequencing batch operation, efficiently can process lower concentration cutting fluid sewage.
Claims (4)
1. the biochemical processing device of a lower concentration cutting fluid sewage, it is characterized in that: it comprises oxygenation pond (1), active charcoal sludge oxidation pond (2), contact-oxidation pool (3), described oxygenation pond (1) is connected with the bottom of active charcoal sludge oxidation pond (2), centre is provided with dividing plate (4), oxygenation pond (1) is provided with import (11) and jet aerator (12), the outside in oxygenation pond (1) is provided with recirculation water lift pump (5), and recirculation water lift pump (5) is connected through the import of pipeline with jet aerator (12); Active charcoal sludge (21) is provided with in described active charcoal sludge oxidation pond (2); The middle part of described contact-oxidation pool (3) is provided with biologic packing material (31), outlet valve (32) is provided with below sidewall, the bottom of contact-oxidation pool (3) is provided with outlet (33), outlet (33) is connected with mud valve (35) with reverse flow valve (34) through pipeline, and reverse flow valve (34) is connected with jet aerator (12) through pipeline; Described contact-oxidation pool (3) and the common side-wall of active charcoal sludge oxidation pond (2) are provided with pipe connecting (6), pipe connecting (6) are provided with communicating valve (61).
2. the biochemical processing device of lower concentration cutting fluid sewage according to claim 1, is characterized in that: described oxygenation pond (1) is set to square or circular.
3. the biochemical processing device of lower concentration cutting fluid sewage according to claim 1, is characterized in that: described active charcoal sludge oxidation pond (2) is set to square or circular.
4. the biochemical processing device of lower concentration cutting fluid sewage according to claim 1, is characterized in that: the top of described contact-oxidation pool (3) is set to square or circular, and it is bucket-shaped that bottom is set to cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373770.0U CN204675971U (en) | 2015-06-03 | 2015-06-03 | The biochemical processing device of lower concentration cutting fluid sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520373770.0U CN204675971U (en) | 2015-06-03 | 2015-06-03 | The biochemical processing device of lower concentration cutting fluid sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204675971U true CN204675971U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520373770.0U Expired - Fee Related CN204675971U (en) | 2015-06-03 | 2015-06-03 | The biochemical processing device of lower concentration cutting fluid sewage |
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| Country | Link |
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| CN (1) | CN204675971U (en) |
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2015
- 2015-06-03 CN CN201520373770.0U patent/CN204675971U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20170603 |