CN204079706U - Return flow system - Google Patents
Return flow system Download PDFInfo
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- CN204079706U CN204079706U CN201420535038.4U CN201420535038U CN204079706U CN 204079706 U CN204079706 U CN 204079706U CN 201420535038 U CN201420535038 U CN 201420535038U CN 204079706 U CN204079706 U CN 204079706U
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- pond
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- grid
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Abstract
The utility model discloses a kind of return flow system, comprise the first grid and the winding shaft that receive high-concentration waste water, and the air flotation pool to be communicated with by the road successively with the first described grid and winding shaft, hydrolysis acidification pool, UASB, comprehensive adjustment pond, biological contact oxidation pond, MBR pond, and with described MBR pond water outlet and the reuse pool connect and second pond, the aerogenesis mouth access bionethanation system of described UASB.Soybean wastewater is creatively divided into two classes by the utility model, high concentration water and low concentration of water, then air flotation pool is promoted to through pump, in air flotation pool, remove the materials such as the suspended particle in waste water, sewage after air-flotation process enters hydrolysis acidification pool, and in addition, UASB anaerobism equipment is gone in hydrolysis acidification pool water outlet, to be reduced organism as hydrogen acceptor, generation simultaneously has the methane gas of energy value and multiparity gas port enters bionethanation system.
Description
Technical field
The utility model relates to water-treatment technology field, particularly relates to a kind of return flow system.
Background technology
The various dish that bean product make are loved by the people, various legume crop making bean product are utilized to have the history of thousands of years in China, in bean product production process, need to use a large amount of water use as starting material and cooling, the waste residue that the water used in past production and making bean product are formed often all at will is drained, and environmental pollution is very big.
Bean product factory effluent contain the nutrition such as large amount of organic matter, ammonia nitrogen and suspension content very high, usually toxicity is not had, the main harm caused environment makes, by discharge waters, eutrophication occurs, Dissolved Oxygen in Water is reduced greatly, bring certain impact to hydrobiont and fish, therefore Bean Products Factory's factory effluent and sanitary sewage are all collected to waste water processing station qualified discharge after Sewage treatment systems processes.Soybean wastewater, as soya-bean milk, tofu wastewaters etc. are generally high concentrated organic wastewater, soybean wastewater is mainly derived from washes beans water, soaking bean water, press filtration water, the washing water of each production technique container, ground flushing water etc., but the Sewage treatment systems of current bean product factory is generally just simply filtered and precipitation process, be equivalent to just simply carry out simple process to bean product sewage, what require bean product sewage discharge along with country improves constantly, the Sewage treatment systems that current existing bean product manufacturing enterprise uses can not reach the requirement of country to bean product manufacturing enterprise sewage drainage standard.
Utility model content
The purpose of this utility model is the technological deficiency for existing in prior art, and provides a kind of return flow system.
The technical scheme adopted for realizing the purpose of this utility model is:
A kind of return flow system, comprise the first grid and the winding shaft that receive high-concentration waste water, and the air flotation pool to be communicated with by the road successively with the first described grid and winding shaft, hydrolysis acidification pool, UASB, comprehensive adjustment pond, biological contact oxidation pond, MBR pond, and with described MBR pond water outlet and the reuse pool connect and second pond, the aerogenesis mouth access bionethanation system of described UASB, also comprise the second grid and the winding shaft that receive low concentration wastewater, the water outlet access comprehensive adjustment pond of the second described grid and winding shaft, clear water qualified discharge after described second pond solid-liquid separation, mud is communicated with sludge sump through blow-off pipe, simultaneously, the scum silica frost of described air flotation pool and heavy mud enter sludge sump through spoil disposal deslagging pipeline, the base sludge of described sludge sump is delivered to pressure filter through sludge pipe, the pressure filtration yielding water of described pressure filter is disposed to comprehensive adjustment pond by the road.
Described second pond is inclined-plate clarifying basin.
Also comprise the MBR be disposed adjacent with described MBR pond and wash membrane cisterna.
The pipeline of described air flotation pool water inlet is serially connected with line mixer, and described line mixer time interval ground adds mechanism with PAC respectively and PAM adds mechanism connection.
On described blow-off pipe, side is connected to mud return line so that partial sludge is back to biological contact oxidation pond.
Compared with prior art, the beneficial effects of the utility model are:
Soybean wastewater is creatively divided into two classes by the utility model, high concentration water and low concentration of water, high concentration water CODcr index is high, organic content is large, first high-concentration waste water is entered grid and winding shaft, remove large floating foreign material, then air flotation pool is promoted to through pump, in air flotation pool, remove the materials such as the suspended particle in waste water, sewage after air-flotation process enters hydrolysis acidification pool, in addition, UASB anaerobism equipment is gone in hydrolysis acidification pool water outlet, anaerobic biological treatment is as the metabolic characteristic utilizing anerobe, do not needing under the condition that external source energy is provided, to be reduced organism as hydrogen acceptor, generation simultaneously has the methane gas of energy value and multiparity gas port enters bionethanation system, UASB equipment can reach about 80% to the clearance of COD, reduce the load of orderly technique.
Accompanying drawing explanation
Figure 1 shows that the structural representation of return flow system of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, return flow system of the present utility model comprises the first grid and the winding shaft 1 that receive high-concentration waste water, and the air flotation pool 2 to be communicated with by the road successively with the first described grid and winding shaft, hydrolysis acidification pool 3, UASB4, comprehensive adjustment pond 5, biological contact oxidation pond 6, MBR pond 7 and with described MBR pond water outlet and the reuse pool 8 connect and second pond 9, as inclined-plate clarifying basin, the aerogenesis mouth access bionethanation system of described UASB, also comprise the second grid and the winding shaft 10 that receive low concentration wastewater, the water outlet access comprehensive adjustment pond 5 of the second described grid and winding shaft, water in described reuse pool can be used for greening, rinse or flush the toilet, clear water qualified discharge after described second pond solid-liquid separation, mud is communicated with sludge sump through blow-off pipe, the base sludge of described sludge sump is delivered to pressure filter through sludge pipe, simultaneously, the scum silica frost of described air flotation pool and heavy mud enter sludge sump 13 through spoil disposal deslagging pipeline or directly enter pressure filter 14.For auxiliary mud reclaims and regeneration, on described blow-off pipe, side is connected to mud return line 11 so that partial sludge is back to biological contact oxidation pond 6.
Simultaneously, for improving air flotation effect, the pipeline of described air flotation pool water inlet is serially connected with line mixer, on the tube wall of described line mixer before and after compartment of terrain be provided with two access ports, two access ports add mechanism with PAC respectively and PAM adds mechanism connection, and described PAC adds mechanism and PAM interpolation mechanism connection comprises tank body, agitator and dosing pump respectively, it no longer launches to describe at this similarly to the prior art
Preferably, water inlet and the water outlet of described hydrolysis acidification pool, comprehensive adjustment pond, biological contact oxidation pond are separately positioned on upstream and downstream both sides, with the effect utilizing the flowing of water to play even water quality, also comprise the MBR be disposed adjacent with described MBR pond simultaneously and wash membrane cisterna, close on and MBR is set washes membrane cisterna, the dual cleaning of online and offline can be realized, improve its work-ing life and efficiency.
For improving treatment effect, micro-hole aerator is provided with in described biological contact oxidation pond pond, aeration tube is provided with bottom described MBR pond, aeration tube is provided with bottom described second pond, described micro-hole aerator and aeration tube are communicated with to realize Air Exposure with gas blower respectively, improve sludge treatment effect.
Specifically, the effect of acidication is the pH value regulating waste water, and rear class access USAB technique, greatly can improve the volumetric loading of UASB, improve removal efficiency.When Organic substance in water is complex construction, acidication bacterium utilizes H
2the H of 0 ionization
+and OH
-opened by C-C in organic molecule, one end adds H
+, one end adds OH
-, long-chain can be hydrolyzed to short chain, side chain becomes straight chain, ring assembling structure becomes straight chain or straight chain, improve the biodegradability of sewage.In water during SS height, bacterium is caught by ectoplasm in hydrolysis, and be hydrolyzed into molecule part with adventitia and enter born of the same parents' intracellular metabolite again, incomplete metabolism can make SS become dissolved organic matter, and water outlet just becomes limpid.Being hydrolyzed bacterium during this is that in the organism that make use of hydrolysis scission of link, covalent linkage energy completes the activity form of life.
UASB: during this art breading soybean wastewater, start-up course is fast, is easy to form granular active sludge; During steady running, the maximum volume rate of load condensate that COD clearance remains on 80% reaches 20kgm
3/ d, factor of created gase reaches 1016m
3m
3/ d, when productivity scale is run; At HRT2d, under temperature 30 ~ 32 DEG C of conditions, volumetric loading rate can reach 515 ~ 715kgm
3the total removal rate of/d, COD reaches 97.15%, and the ability of its anti-shock loading and low pH is also very strong.UASB Treatment of Soybean Products Wastewater has the advantage that processing efficiency is high, three phase separation is effective, sludge settling is good.
Biological contact oxidation pond: the removal of organic pollutant is mainly by the adsorption and dissociation metabolism of microorganism, then come by mud-water separation, microorganism in active sludge under the condition of aerobic by the new cell of a part of organic synthesis in sewage, another part organism is carried out katabolism, to obtain the energy needed for cell synthesis, its final product is CO
2and H
2the stable materials such as O.
Soybean wastewater is creatively divided into two classes by the utility model, high concentration water and low concentration of water, wherein high concentration water CODcr is up to 20000mg/L-30000mg/L, as soaking bean water, low concentration of water CODcr4000mg/L-8000mg/L, comprise as washed beans water, press filtration water, other waste water such as washing water, cr is relatively low for such waste water COD, high concentration water CODcr index is high, organic content is large, first high-concentration waste water is entered grid and winding shaft, remove large floating foreign material, then air flotation pool is promoted to through pump, in air flotation pool, remove the materials such as the suspended particle in waste water, sewage after air-flotation process enters hydrolysis acidification pool, in addition, UASB anaerobism equipment is gone in hydrolysis acidification pool water outlet, anaerobic biological treatment is as the metabolic characteristic utilizing anerobe, do not needing under the condition that external source energy is provided, to be reduced organism as hydrogen acceptor, generation simultaneously has the methane gas of energy value and multiparity gas port enters bionethanation system, UASB equipment can reach about 80% to the clearance of COD, reduce the load of orderly technique.
Low concentration wastewater is through grid and winding shaft, and water outlet and UASB water outlet are mixed into comprehensive adjustment pond, then enter hydrolysis acidification pool and biological contact oxidation pond, in pond, arrange filler, it can be used as biomembranous carrier.Pending waste water flows through filler with certain flow rate after oxygenation, and with biofilm contact, the active sludge acting in conjunction of microbial film and suspension, reaches the effect of purifying liquid waste.
High concentrated organic wastewater and low-concentration organic waste water are collected respectively, staging treating, save processing cost and working cost.Treatment process is succinct, stable effluent quality, and operation and control are conveniently.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a return flow system, it is characterized in that, comprise the first grid and the winding shaft that receive high-concentration waste water, and with the first described grid and winding shaft the air flotation pool successively through being communicated with, hydrolysis acidification pool, UASB, comprehensive adjustment pond, biological contact oxidation pond, MBR pond, and with described MBR pond water outlet and the reuse pool connect and second pond, the aerogenesis mouth access bionethanation system of described UASB, also comprise the second grid and the winding shaft that receive low concentration wastewater, the water outlet access comprehensive adjustment pond of the second described grid and winding shaft, clear water qualified discharge after described second pond solid-liquid separation, mud is communicated with sludge sump through blow-off pipe, simultaneously, the scum silica frost of described air flotation pool and heavy mud enter sludge sump through spoil disposal deslagging pipeline, the base sludge of described sludge sump is delivered to pressure filter through sludge pipe.
2. purifier as claimed in claim 1, it is characterized in that, be provided with acidification pool between described comprehensive adjustment pond and biological contact oxidation pond, the pressure filtration yielding water of described pressure filter is disposed to comprehensive adjustment pond by the road.
3. purifier as claimed in claim 1, it is characterized in that, described second pond is inclined-plate clarifying basin.
4. purifier as claimed in claim 3, is characterized in that, also comprise the MBR be disposed adjacent with described MBR pond and wash membrane cisterna.
5. purifier as claimed in claim 1, is characterized in that, the pipeline of described air flotation pool water inlet is serially connected with line mixer, and described line mixer time interval ground adds mechanism with PAC respectively and PAM adds mechanism connection.
6. purifier as claimed in claim 1, is characterized in that, on described blow-off pipe, side is connected to mud return line so that partial sludge is back to biological contact oxidation pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535038.4U CN204079706U (en) | 2014-09-17 | 2014-09-17 | Return flow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535038.4U CN204079706U (en) | 2014-09-17 | 2014-09-17 | Return flow system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204079706U true CN204079706U (en) | 2015-01-07 |
Family
ID=52172443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420535038.4U Expired - Fee Related CN204079706U (en) | 2014-09-17 | 2014-09-17 | Return flow system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204079706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193113A (en) * | 2014-09-17 | 2014-12-10 | 天津邦盛净化设备有限公司 | Bean product wastewater treatment system |
-
2014
- 2014-09-17 CN CN201420535038.4U patent/CN204079706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193113A (en) * | 2014-09-17 | 2014-12-10 | 天津邦盛净化设备有限公司 | Bean product wastewater treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20190917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |