CN104176893A - Canned fungus processing wastewater treatment system - Google Patents
Canned fungus processing wastewater treatment system Download PDFInfo
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- CN104176893A CN104176893A CN201410475159.9A CN201410475159A CN104176893A CN 104176893 A CN104176893 A CN 104176893A CN 201410475159 A CN201410475159 A CN 201410475159A CN 104176893 A CN104176893 A CN 104176893A
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Abstract
The invention discloses a canned fungus processing wastewater treatment system which comprises an adjusting pond, an air floatation pond, an A20 biochemical nitrogen and phosphorus removal device, an MBR (membrane bioreactor) pond, a self-suction pump, a middle water pond, an ultraviolet sterilizer, an active carbon filter, a precision filter, a high-pressure pump, an RO (reverse osmosis) system and a clear water pond which are communicated through pipelines. The wastewater treatment system mainly aims at wastewater containing a large quantity of proteins and suspended matters; the substances are small in specific gravity and relatively poor in biodegradability, and the concentration of the suspended matters and organic matters is relatively high; aiming at the characteristics of the wastewater, a coagulation air floatation process, an A2O and MBR combined process and an RO process are combined; the suspended matters and the organic pollutants in the wastewater are removed by adopting the coagulation air floatation process; the organic matters in the wastewater are effectively removed by adopting the A2O and MBR combined process, and meanwhile, nitrogen and phosphorus are removed; salt in the wastewater is effectively removed by adopting the RO process to meet the discharge requirements.
Description
Technical field
The present invention relates to water-treatment technology field, particularly relate to a kind of mushroom can processing Waste Water Treatment.
Background technology
Waste water in mushroom canned pack production process is mainly that starting material clean the waste water producing, wherein contain more protein and suspended substance, and these material proportions are little, biodegradability is poor, suspended substance and organic concentration are higher, principal pollutant have CODcr150-200mg/L, BOD5 50-100mg/L, ammonia nitrogen 20-40mg/L, belong to slight pollution, but can not directly discharge, especially directly how earth's surface discharge, carry out making it meet earth's surface emission standard for processing to it, becomes the technical issues that need to address.
Summary of the invention
The object of the invention is for the technological deficiency existing in prior art, and a kind of mushroom can processing Waste Water Treatment is provided.
For realizing the technical scheme that object of the present invention adopts, be:
A mushroom can processing Waste Water Treatment, comprises the equalizing tank, air flotation pool, the A that are communicated with by the road successively
20 biochemical denitrification dephosphorization device, MBR pond, vacuum primingpump, intermediate pool, ultraviolet sterilizer, activated charcoal filter, accurate filter, high-pressure pump, RO system and clean water basin, described A
20 biochemical denitrification dephosphorization comprises anaerobic pond, anoxic pond and the biological contact oxidation pond being communicated with successively, be arranged on the perforated pipe of described anoxic pond bottom, be arranged on the micro-hole aerator of biological contact oxidation pond bottom, online dissolved oxygen detector and by motor-driven control valve controllably to the gas blower of described perforated pipe and micro-hole aerator oxygen supply.
Also comprise and through line mixer access air flotation pool, advance that the PAC of water pipe adds mechanism and PAM adds mechanism.
Described RO system comprises four groups of RO films, the product water side of four groups of RO films also accesses clean water basin, the one RO film and the 2nd influent side of RO film and the water outlet of high-pressure pump also connect, the influent side of the 3rd water RO film is connected to the dense water side of a RO film and the 2nd RO film, and the influent side of the 4th RO film is connected to the dense water side of the 3rd RO film.
In described equalizing tank, be provided with underwater stirrer.
In the pond of described membrane bioreactor, be provided with sludge reflux pump, in order to the microorganism being retained down is back to Aerobic Pond.
The purity of selecting of described flocculation agent is 30%PAC powder, adds water proportioning and becomes 10% PAC solution; Described coagulating agent utilizes PAM powder to add water proportioning to become 1% PAM solution, and the adding proportion of PAM solution and PAC solution is: PAM:PAC=1:5-2:5.
Described dissolved oxygen in anoxic tank is controlled at 1-2mg/L, and Aerobic Pond dissolved oxygen is controlled at 2-4mg/L.
In described anaerobic pond, anoxic pond and biological contact oxidation pond, all flexible 3-D filler is usingd respectively as the carrier of anerobe, amphimicrobe, aerobic bacteria, and in three ponds, dwell time of sewage is respectively 1h, 1h and 6h.
Compared with prior art, the invention has the beneficial effects as follows:
Waste Water Treatment of the present invention, mainly for having more protein and the sewage of suspended substance, and these material proportions are little, biodegradability is poor, and suspended substance and organic concentration are higher, the present invention is directed to sewage feature, by coagulation air-float, A
2combination and the reverse osmosis process of O+MBR combine, and utilize coagulate gas floating process to remove suspended substance and the organic pollutant in waste water.Utilize A
2the combination process of O+MBR, effectively removes the organism in waste water, and denitrogenation dephosphorizing, utilizes reverse osmosis process simultaneously, effectively removes the salinity in water, to meet emission request.
Accompanying drawing explanation
Figure 1 shows that the structural representation of mushroom can processing Waste Water Treatment of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, mushroom can processing Waste Water Treatment of the present invention comprises equalizing tank 1, air flotation pool 2, the A being communicated with by the road successively
20 biochemical denitrification dephosphorization device 3, MBR pond 4, vacuum primingpump 5, intermediate pool 6, ultraviolet sterilizer 7, activated charcoal filter 8, accurate filter 9, high-pressure pump 10, RO system 11 and clean water basin 12, described A
20 biochemical denitrification dephosphorization comprises anaerobic pond, anoxic pond and the biological contact oxidation pond through being communicated with successively, be arranged on the perforated pipe of described anoxic pond bottom and be arranged on the micropore aeration pipe device of biological contact oxidation pond bottom, online dissolved oxygen detector and to described by motor-driven control valve control to the gas blower 13 of perforated pipe and micro-hole aerator oxygen supply.Also comprise simultaneously and through line mixer access air flotation pool, advance that the PAC of water pipe adds mechanism 14 and PAM adds mechanism 15, PAC and PAM priority duct type are added in sewage, can effectively improve flocculating effect, in air flotation pool, effectively go out suspended substance and organic pollutant, reduce subsequent treatment cost.
Wherein, PAC adds mechanism and PAM interpolation mechanism comprises respectively the tank body that is provided with stirring mechanism in it, volume pump and adding tube, two adding tubes by mass transport to same line mixer, before and after described line mixer, be provided with two other interfaces, the combined effect that adopts PAC and PAM, effectively improves throwing out, improves initial gross separation effect.
Specifically, for adapting to the characteristic of mushroom can waste water, the control of the present invention's coagulation dosing before air supporting: the matched proportion density of flocculation agent (PAC) and coagulant aids (PAM) and addition must strictly control to guarantee treatment effect.Wherein, the matched proportion density of flocculation agent is generally selected PAC powder (detect with GB, purity is 30%), and proportioning becomes 10% PAC solution; Utilize PAM powder mixture ratio to become 1% PAM solution.Regulate the dosing per-cent of volume pump, to realize best flocculating effect simultaneously.Due to after equalizing tank adjusting and pump lifting, water quality and quantity is more stable, PAM and PAC add concentration and have determined, add than being? general PAM addition is 2mg/l, PAC addition is 50-100mg/l, according to above matched proportion density, 1T/H waste water need add medicament and be about PAM 0.2L/H, PAC 0.5-1L/H.Add than being about PAM:PAC=1:5-2:5
For A20 biochemical denitrification dephosphorization, wherein, equal flexible 3-D filler in anaerobism, anoxic, biological contact oxidation pond, carrier as anerobe, amphimicrobe, aerobic bacteria, at film Surface Creation microbial film, greatly extended sludge age, reduced the residence time simultaneously, be respectively 1h, 1h, 6h, wherein in biological contact oxidation pond, aeration is for oxygenation, gas-water ratio is pressed 20:1, adopts the mode of micro-pore aeration; Anoxic pond aeration is not for oxygenation, and just in order to stir, gas-water ratio is pressed 2:1, adopts perforated pipe aerating regulation.The control of aeration concentration: dissolved oxygen in anoxic tank is controlled at 1-2mg/L, Aerobic Pond dissolved oxygen is controlled at 2-4mg/L.In activated sludge culture process, microorganism concn is low in the early stage, and oxygen requirement is lower.In debugging, complete, when system is normally moved, microorganism concn is higher, and oxygen requirement is larger.Adjust at any time aeration valve opening degree according to dissolved oxygen concentration, to meet the demand of microorganism to oxygen, this process can be controlled by online dissolved oxygen detector and motor-driven control valve.
The present invention is directed to sewage feature, by coagulation air-float, A
2combination and the reverse osmosis process of O+MBR combine, and utilize coagulate gas floating process to remove suspended substance and the organic pollutant in waste water.Utilize A
2the combination process of O+MBR, effectively removes the organism in waste water, and denitrogenation dephosphorizing, utilizes reverse osmosis process simultaneously, effectively removes the salinity in water, to meet emission request.
Specifically, before described equalizing tank, be also provided with grille well, in the sewage due to discharge, contain a large amount of floating matters, once floating matter enters water pump or pipeline, will stop up, for guaranteeing the steady running of Sewage treatment systems.Grid is set in grille well, with the suspended substance except floating matter in decontaminated water and larger particles, thereby has alleviated the load of subsequent disposal system.Preferably described grid adopts artificial grid, and artificial grid is a kind of sewage disposal device of manually removing contamination, and is mainly used in the less Sewage treatment systems of the grid quantity of slag, by steel structure frame, grizzly bar etc., formed, when sewage overcurrent, the foreign material that are greater than grid gap are blocked, during cleaning by manually dragging for clearly.
The function of described equalizing tank is that the water yield of former water and water quality are regulated, because it is larger that the water yield of former water and water quality change in discharge process, by the water yield is regulated and can reduce the impact load to subsequent disposal system, the normal operation of operation and other equipment after having guaranteed.At equalizing tank, underwater stirrer is set, can makes water quality be tending towards evenly, in anti-sealing, suspended substance precipitation, meanwhile, for preventing equalizing tank liner, establishes underwater stirrer in described equalizing tank simultaneously.
A
20 biochemical denitrification dephosphorization comprises anaerobic pond, anoxic pond and biological contact oxidation pond, and wherein anaerobic treatment is to utilize the effect of anerobe, removes the organism in waste water, conventionally needs the time longer.Anaerobic process can be divided into hydrolysis stage, souring stage and methanation stage, the chain that mainly long-chain shortened, and macromolecular substance converts small-molecule substance to, and hard-degraded substance is transformed into easy degradation material.Anoxic pond is mainly used for anaerobic digestion, and the sewage high for inlet COD concentration can first carry out anaerobic reaction conventionally, improves the clearance of COD, changes the organism of polymer difficult degradation into organism that low molecule is easily degraded, improves the ratio of BOD/COD.Biological contact oxidation pond, being active sludge in Aerobic Pond is comprised of organism, the inorganics with absorption of aerobic and aerobic-anaerobic microbe (comprising bacterium, fungi, protista and artifact) and metabolism thereof, there is organic ability in degradation of sewage, in pond, be provided with micro-hole aerator, micro-pore aeration refers to artificially and in aerobic biochemical pool, passes into air by suitable equipment, to reach the object of expection.Micro-pore aeration not only makes liquid-to-air contact oxygenation in pond, and due to agitated liquid, has accelerated oxygen in air and shifted in liquid, thereby completes the object of oxygenation; In addition, micro-pore aeration prevents that pond inner suspension body from sinking in addition, strengthens the object that in pond, organism contacts with dissolved oxygen with microorganism, thereby guarantees in pond there be under the condition of sufficient dissolved oxygen microorganism, to organic oxygenolysis in sewage.Biological contact oxidation process is that filler is set in pond, the whole fillers of sewage submergence of oxygenation, and with certain speed filler of flowing through.On filler, cover with microbial film, sewage contacts with microbial film, and under the effect of biofilm microorganisms, sewage is purified.
In A2O, BOD5, SS and the nitrogen existing with various forms and phosphorus will be removed one by one.In the active sludge of A2O biological carbon and phosphorous removal system, flora is mainly comprised of nitrifier and denitrifying bacteria, polyP bacteria.At aerobic section, nitrobacteria, by the ammonia nitrogen of the ammonia nitrogen in becoming a mandarin and organonitrogen ammonification one-tenth, by biological nitration effect, changes into nitrate; In anoxic section, the nitrate that denitrifying bacterium is brought internal reflux into, by biological denitrification, changes into nitrogen and escapes in atmosphere, thereby reaches the object of denitrogenation; In anaerobism section, polyP bacteria discharges phosphorus, and absorbs the organism of the easy degradeds such as lower fatty acid; And at aerobic section, polyP bacteria excess absorbs phosphorus, and by the discharge of excess sludge, phosphorus is removed.
Described membrane bioreactor (MBR) is a kind of Novel sewage treatment technology that traditional biological treatment is combined with membrane separation technique.In membrane bioreactor, most of dissolubility pollutants can be converted into and be easy to the microorganism of filtering, and the film is not here for filtering and obtains pollutent, but are used for retaining microorganism in bio-reactor.This combination process be except alleviating film pollutes, also because it has retained the performance that microorganism in reactor has been improved Sludge System completely.In the pond of membrane bioreactor, establish a sludge reflux pump, the microorganism being retained down for film is back to Aerobic Pond, to guarantee the sludge concentration in Aerobic Pond.The sludge quantity that simultaneously MBR technique produces is less, regular spoil disposal, and mud enters sludge sump, periodic cleaning.
Described ultraviolet sterilizer and activated charcoal filter mainly play sterilization and take out organic effect, and described accurate filter filters to avoid the damage to high-pressure pump and RO device in order to essence, described RO device Main Function: remove salt, hold back bacterium.Specifically, described RO system comprises four groups of RO films, the product water side of four groups of RO films also accesses clean water basin, the one RO film and the 2nd influent side of RO film and the water outlet of high-pressure pump also connect, the influent side of the 3rd water RO film is connected to the dense water side of a RO film and the 2nd RO film, and the influent side of the 4th RO film is connected to the dense water side of the 3rd RO film.Adopt the mode of going here and there and combining that RO film is set, can effectively improve filter effect, guarantee water production rate.
Sewage after treatment effluent characteristics is as shown in table 1,
| Pollutent | Water quality standard |
| PH | 6-9 |
| Biochemical oxygen demand (BOD) (BOD5) (mg/l)≤ | 10 |
| Chemical oxygen demand (COD) (CODCr) (mg/l)≤ | 40 |
| Ammonia nitrogen (in N mg/l)≤ | 2 |
| Total phosphorus (in P mg/l)≤ | 0.4 |
| Total coli group/(individual/L)≤ | 40000 |
Reach the V class standard in < < water environment quality standard > > (GB 13838-2002), can carry out earth's surface discharge.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a mushroom can processing Waste Water Treatment, is characterized in that, comprises the equalizing tank, air flotation pool, the A that are communicated with by the road successively
20 biochemical denitrification dephosphorization device, MBR pond, vacuum primingpump, intermediate pool, ultraviolet sterilizer, activated charcoal filter, accurate filter, high-pressure pump, RO system and clean water basin, described A
20 biochemical denitrification dephosphorization comprises anaerobic pond, anoxic pond and the biological contact oxidation pond being communicated with successively, be arranged on the perforated pipe of described anoxic pond bottom, be arranged on the micro-hole aerator of biological contact oxidation pond bottom, online dissolved oxygen detector and by motor-driven control valve controllably to the gas blower of described perforated pipe and micro-hole aerator oxygen supply.
2. mushroom can processing Waste Water Treatment as claimed in claim 1, is characterized in that, also comprises through line mixer access air flotation pool, advancing that the PAC of water pipe adds mechanism and PAM adds mechanism.
3. mushroom can processing Waste Water Treatment as claimed in claim 1, it is characterized in that, described RO system comprises four groups of RO films, the product water side of four groups of RO films also accesses clean water basin, the one RO film and the 2nd influent side of RO film and the water outlet of high-pressure pump also connect, the influent side of the 3rd water RO film is connected to the dense water side of a RO film and the 2nd RO film, and the influent side of the 4th RO film is connected to the dense water side of the 3rd RO film.
4. mushroom can processing Waste Water Treatment as claimed in claim 1, is characterized in that, in described equalizing tank, is provided with underwater stirrer.
5. mushroom can processing Waste Water Treatment as claimed in claim 1, is characterized in that, in the pond of described membrane bioreactor, is provided with sludge reflux pump, in order to the microorganism being retained down is back to Aerobic Pond.
6. the mushroom can processing Waste Water Treatment as described in claim 1-5 any one, is characterized in that: the purity of selecting of described flocculation agent is 30%PAC powder, adds water proportioning and becomes 10% PAC solution; Described coagulating agent utilizes PAM powder to add water proportioning to become 1% PAM solution, and the adding proportion of PAM solution and PAC solution is: PAM:PAC=1:5-2:5.
7. mushroom can processing Waste Water Treatment as claimed in claim 6, is characterized in that: described dissolved oxygen in anoxic tank is controlled at 1-2mg/L, and Aerobic Pond dissolved oxygen is controlled at 2-4mg/L.
8. mushroom can processing Waste Water Treatment as claimed in claim 6, it is characterized in that: the carrier that in described anaerobic pond, anoxic pond and biological contact oxidation pond, all flexible 3-D filler is usingd respectively as anerobe, amphimicrobe, aerobic bacteria, in three ponds, dwell time of sewage is respectively 1h, 1h and 6h.
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| CN201410475159.9A CN104176893A (en) | 2014-09-17 | 2014-09-17 | Canned fungus processing wastewater treatment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417842A (en) * | 2015-11-12 | 2016-03-23 | 中新苏州工业园区环保技术有限公司 | Advanced treatment method for high-concentration degradation-resistant liquid crystal electronic industrial wastewater |
| CN105712572A (en) * | 2015-12-04 | 2016-06-29 | 韩山师范学院 | Method for treating preserved fruit wastewater on basis of membrane integration technologies |
| CN107244787A (en) * | 2017-08-04 | 2017-10-13 | 盘锦宁泰能源科技有限公司 | A kind of oil-polluted water integrated conduct method and total system |
| CN113772840A (en) * | 2021-10-19 | 2021-12-10 | 西安热工研究院有限公司 | Intelligent reverse osmosis multiple-effect protection system |
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| CN202671340U (en) * | 2012-05-15 | 2013-01-16 | 天津邦盛净化设备有限公司 | Purification system for hospital water |
| US20130341268A1 (en) * | 2012-06-21 | 2013-12-26 | Daniel Ertel | Method and system for treating wastewater |
| CN204151197U (en) * | 2014-09-17 | 2015-02-11 | 天津邦盛净化设备有限公司 | Mushroom can processing Waste Water Treatment |
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- 2014-09-17 CN CN201410475159.9A patent/CN104176893A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101428945A (en) * | 2008-12-15 | 2009-05-13 | 上海埃梯梯恒通先进水处理有限公司 | Method and apparatus for treating and recycling carbonized wastewater |
| CN202671340U (en) * | 2012-05-15 | 2013-01-16 | 天津邦盛净化设备有限公司 | Purification system for hospital water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105417842A (en) * | 2015-11-12 | 2016-03-23 | 中新苏州工业园区环保技术有限公司 | Advanced treatment method for high-concentration degradation-resistant liquid crystal electronic industrial wastewater |
| CN105712572A (en) * | 2015-12-04 | 2016-06-29 | 韩山师范学院 | Method for treating preserved fruit wastewater on basis of membrane integration technologies |
| CN107244787A (en) * | 2017-08-04 | 2017-10-13 | 盘锦宁泰能源科技有限公司 | A kind of oil-polluted water integrated conduct method and total system |
| CN113772840A (en) * | 2021-10-19 | 2021-12-10 | 西安热工研究院有限公司 | Intelligent reverse osmosis multiple-effect protection system |
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Application publication date: 20141203 |