CN108069570A - A kind of device for removing breeding wastewater carbon nitrogen phosphorus - Google Patents

A kind of device for removing breeding wastewater carbon nitrogen phosphorus Download PDF

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CN108069570A
CN108069570A CN201711435650.9A CN201711435650A CN108069570A CN 108069570 A CN108069570 A CN 108069570A CN 201711435650 A CN201711435650 A CN 201711435650A CN 108069570 A CN108069570 A CN 108069570A
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breeding wastewater
periphery
culture
water
reaction member
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CN108069570B (en
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钟玉鸣
刘晖
王琴
童英林
柳建良
李焕垲
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Guangdong Fengnonghui Technology Development Co.,Ltd.
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Zhongkai University of Agriculture and Engineering
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Abstract

The invention discloses a kind of devices for removing breeding wastewater carbon nitrogen phosphorus, including central reaction unit, by being passed through breeding wastewater and adding in association flora, are pre-processed for breeding wastewater；Periphery reaction member by being passed through breeding wastewater, and adds in chlorella, and after placing culture 4~6 days, the waste water of central reaction unit outflow is passed through in the reaction member of periphery, for further removing water pollutant；Central reaction unit nesting is arranged in the reaction member of periphery, and central reaction unit is provided with the first water inlet and the first water outlet；Periphery reaction member is provided with the second water inlet and the second water outlet, and is connected between the first water outlet and the second water inlet by pipeline, and settler and valve are provided on pipeline.Apparatus of the present invention take into account cultivating wastewater purification with strengthening the function of micro algae growth, can complete the removal of nitrogen P elements in breeding wastewater, can also be achieved the functions such as microalgae resource reclaim.

Description

A kind of device for removing breeding wastewater carbon nitrogen phosphorus
Technical field
The invention belongs to environmental protecting device fields, and in particular to a kind of device for removing breeding wastewater carbon nitrogen phosphorus.
Background technology
The water environment pollution problem getting worse in China at present, nitrogen, phosphorus, organic matter and new toxic layer of contaminants go out not Thoroughly.The requirement of total nitrogen prediction emission is implemented to coastal ground level and more than city in national new " ten, water " so that at water The requirement of reason improves a higher general layout.Livestock culture waste water has COD high, and biodegradability is strong, the high spy of nitrogen and phosphorus content Point.Since the nitrogen and phosphorus pollution of breeding wastewater is very serious, largely it is discharged into local water system and then causes to seriously affect, China about generates every year 100,000,000 tons of aquatic bird excrement, 5,000,000 tons of the livestock culture waste water that Guangzhou is discharged daily or more seriously destroys water ecology balance.
In general, microorganism removal nitrogen is both economical means, the neck especially cultivated in aquaculture and aquatic bird Domain.Denitrification process includes ammoxidation process, nitrifying process, denitrification process and the continuous process of Anammox, Ji Zhongwei How biology stablizes the difficult point for organically combining and removing nitrogen.
The content of the invention
It is an object of the invention to according to deficiencies of the prior art, provide a kind of removal breeding wastewater carbon nitrogen phosphorus Device.
In order to realize foregoing invention purpose, the present invention provides a kind of device for removing breeding wastewater carbon nitrogen phosphorus, including：
Volume is the central reaction unit of 100~200L, by being passed through breeding wastewater and adding in association flora, for cultivating Wastewater Pretreatment；
Volume is the periphery reaction member of 800~1000L, for further removing water pollutant；
The central reaction unit nesting is arranged in the reaction member of periphery, and central reaction unit is provided with the first water inlet With the first water outlet；Periphery reaction member is provided with the second water inlet and the second water outlet, and first water outlet with it is described It is connected between second water inlet by pipeline, and settler and valve is provided on pipeline；
The volume of the settler is about 5L, for first sinking before breeding wastewater is passed through periphery reaction member It forms sediment；
Settler major function is to control the suspended matter of water outlet, and treated water inlet is provided to periphery reaction unit. Sedimentation basin volume, when the general residence time is 2-4 small.After precipitation, the water inlet ss into periphery reaction member is not higher than 200mg/L。
The function of water circulating pump is：According to the residence time of periphery reaction member, periodically it is drawn into from sedimentation basin supernatant Water enters periphery reaction member.
The isolated culture method of the association flora includes the following steps：
Breeding wastewater is taken, removes oil removal and macroplankton, then concentrate is obtained through filtering, filters, collects precipitation Object is transferred to M0 fluid nutrient mediums and carries out enrichment culture, obtained preliminary culture is centrifuged, and gained precipitation is inoculated in M0 solids Purifies and separates are carried out in culture medium, is subsequently placed in M0 fluid nutrient mediums and cultivates, culture is finished through centrifugation, and gained precipitation adds in M1 Expand culture in fluid nutrient medium, culture finishes to be centrifuged again, and gained sediment is association flora；
Wherein, every liter of M0 fluid nutrient medium includes following component：NaNO31500mg, K2HPO40.04mg, MgSO4·7H2O 75mg, CaCl2·2H2O 36mg, citric acid 6mg, EDTA 1mg, Na2CO320mg；
Every liter of M0 solid medium includes following component：NaNO31500mg, K2HPO40.04mg, MgSO47H2O 75mg, CaCl2 2H2O 36mg, citric acid 6mg, EDTA 1mg, Na2CO320mg, agar powder 2wt%；
Every liter of M1 fluid nutrient medium includes following component：CH3COONa 3.68g, Na2HPO428.73mg NH4Cl 57.27mg MgSO4131.82mg, K2SO426.74mg CaCl2·2H2O 17.2mg, pH 7.0.
It is used to remove a kind of preferred embodiment of the device of breeding wastewater carbon nitrogen phosphorus, the central reaction unit as the present invention In, the volume ratio of the breeding wastewater and association flora is 100:1.
As the present invention for remove breeding wastewater carbon nitrogen phosphorus device a kind of preferred embodiment, the enrichment culture be Whole day illumination is cultivated 2~3 days under the conditions of 25 DEG C, is shaken every day 2~3 times.
As the present invention for remove breeding wastewater carbon nitrogen phosphorus device a kind of preferred embodiment, it is described expand culture be Non- illumination, the lower culture of 25 DEG C of additions 3~4 days.
The operation thinking of device of the present invention for removing breeding wastewater carbon nitrogen phosphorus is central reaction unit and periphery reaction Unit is first individually run, after certain standard to be achieved (when microdisk electrode is to certain scale), by two reaction members with sinking Shallow lake device connection intermittent duty, carrying out practically method are as follows：
Breeding wastewater and association flora are passed through by the first water inlet in central reaction unit, start independent loops fortune Row, first sets hydraulic detention time as 4~7 days, treats that COD removal rates reach more than 50%, total nitrogen and total tp removal rate reaches respectively During to more than 20%, hydraulic detention time is set as 2~3 days, treats that COD removal rates reach more than 50%, total nitrogen and total phosphorus ligands When rate respectively reaches more than 50%, central reaction unit starts completely；
Periphery reaction member is passed through breeding wastewater, and adds in chlorella, places culture 4~6 days, treats that COD removal rates reach More than 50%, when total nitrogen and total tp removal rate respectively reach more than 30%, periphery reaction member starts completely, two reaction members Start to connect intermittent duty with settler；
Breeding wastewater after central reaction cell processing is flowed into settler, then center is anti-by the first water outlet The breeding wastewater that the water in unit stops, into settler, having been enter into settler is answered to precipitate 2~4h (precipitation completions wherein Before will not enter periphery reaction member), then by water circulating pump be pumped into periphery reaction member in handled, the water being disposed It is discharged by the second water outlet；When the water in settler is completely exhausted out into periphery reaction member, central reaction unit Water is again introduced into settler and is precipitated, and is so repeated.
Further, in the periphery reaction member, the volume ratio of the breeding wastewater and chlorella for 500~ 1000:1。
Compared with prior art, the present invention has the advantages that：
Apparatus of the present invention take into account cultivating wastewater purification with strengthening the function of micro algae growth using association flora, can complete to support The removal of nitrogen P elements in waste water is grown, can also be achieved the functions such as microalgae resource reclaim.
Description of the drawings
Fig. 1 is the cross-sectional view of the device of present invention removal breeding wastewater carbon nitrogen phosphorus.
Fig. 2 is the overlooking the structure diagram of Fig. 1 shown devices.
Fig. 3 be association flora and microalgae collective effect when reaction efficiency and independent role when comparison.
Fig. 4 is 7 days removal rate results of apparatus of the present invention.
Reference sign：
10- central reaction units；The first water inlets of 12-；The first water outlets of 14-；20- settlers；30- water circulating pumps； 40- peripheries reaction member；The second water inlets of 42-；The second water outlets of 44-.
Specific embodiment
In order to become apparent from the purpose of the present invention, technical solution and advantageous effects, with reference to embodiments, to this Invention is further elaborated.It should be appreciated that the embodiment described in this specification is just for the sake of this hair of explanation It is bright, be not intended to limit the present invention, parameter, ratio of embodiment etc. can adaptation to local conditions make a choice and substance had no to result It influences.
Embodiment 1
The device (Fig. 1 and 2) of breeding wastewater carbon nitrogen phosphorus is removed, including：
Central reaction unit 10 by being passed through breeding wastewater and adding in association flora, pre-processes for breeding wastewater；
Periphery reaction member 40, the waste water that central reaction unit 10 flows out are passed through in periphery reaction member 40, for into one Step removal water pollutant；
10 nesting of central reaction unit is arranged in periphery reaction member 40, and central reaction unit 10 is provided with the first water inlet 12 and first water outlet 14 of mouth；Periphery reaction member 40 is provided with the second water inlet 42 and the second water outlet 44, and the first water outlet It is connected between 12 and second water inlet 42 of mouth by pipeline, and settler 20 and valve is provided on pipeline；
Settler 20 first precipitates before breeding wastewater is passed through periphery reaction member 40；
The isolated culture method of association flora includes the following steps：
Breeding wastewater is taken, removes oil removal and macroplankton, then concentrate is obtained through filtering, filters, collects precipitation Object is transferred to M0 fluid nutrient mediums and carries out enrichment culture, obtained preliminary culture is centrifuged, and gained precipitation is inoculated in M0 solids Purifies and separates are carried out in culture medium, is subsequently placed in M0 fluid nutrient mediums and cultivates, culture is finished through centrifugation, and gained precipitation adds in M1 Expand culture in fluid nutrient medium, culture finishes to be centrifuged again, and gained sediment is association flora；
Wherein, every liter of M0 fluid nutrient medium includes following component：NaNO31500mg, K2HPO40.04mg, MgSO4· 7H2O 75mg, CaCl2·2H2O 36mg, citric acid 6mg, EDTA 1mg, Na2CO320mg；
Every liter of M0 solid medium includes following component：NaNO31500mg, K2HPO40.04mg, MgSO47H2O 75mg, CaCl2 2H2O 36mg, citric acid 6mg, EDTA 1mg, Na2CO320mg, agar powder 2wt%；
Every liter of M1 fluid nutrient medium includes following component：CH3COONa 3.68g, Na2HPO428.73mg NH4Cl 57.27mg MgSO4131.82mg, K2SO426.74mg CaCl2·2H2O 17.2mg, pH 7.0.
Central reaction unit 10 volume about 100-200L is passed through and dilutes 1 through culture medium M1：1 breeding wastewater (presses volume Than), by the volume 1 with waste water：100 add in association flora A, start, using circular flow, first not accessing periphery reaction member 40. 10 flow velocity of central reaction unit is controlled by hydraulic detention time and set at 4-7 days.COD, total nitrogen and total phosphorus are measured weekly, work as COD Removal rate reaches more than 50%, and total nitrogen goes removal rate to respectively reach more than 20% with total phosphorus, shortens hydraulic detention time to 2-3 My god, it was measured per 2-3 days and measures COD, total nitrogen and total phosphorus weekly, when COD removal rates reach more than 50%, total nitrogen is removed with total phosphorus Rate respectively reaches more than 20%, is changed to be passed through breeding wastewater raw water and continuum micromeehanics, hydraulic detention time is set as 2-3 days, often It measures within 2-3 days and measures COD, total nitrogen and total phosphorus weekly, when COD removal rates reach more than 50%, total nitrogen removes removal rate point with total phosphorus Do not reach more than 50%, the 10 complete startup of central reaction unit.There is central reaction unit 10 breeding wastewater to pre-process and strengthen The function of periphery reaction member.
Reaction member 40 volume in periphery is 800-1000L, and by waste water and chlorella, (chlorella is the present embodiment from cultivation Isolated preliminary culture expands culture through separation and obtains in waste water, also can directly market buy chlorella) according to 500~ 1000:1 volume ratio direct plunges into chlorella, places culture 4~6 days, treats that COD removal rates reach more than 50%, total nitrogen and total phosphorus When removal rate respectively reaches more than 30%, periphery reaction member 40 starts completely；
By treated the breeding wastewater of central reaction unit 10 by the first water outlet 12, flow into settler 20 (5L) 2~4h is precipitated, then breeding wastewater is passed through by the second water inlet 42 by water circulating pump 30, at periphery reaction member 40 Reason, the water being disposed are discharged by the second water outlet 44.
Embodiment 2
The present embodiment uses the method from waste water screening microalgae.
From aquatic bird breeding wastewater, factory takes waste water 15-20L, is excluded by conventional, removes oil removal, after being aerated 30min, then Precipitate 30min；Then by filtering or centrifuging, sediment is collected on filter membrane；Sediment by sterile water wash 1-2 after, M0 fluid nutrient mediums are transferred to, enrichment culture 2-3 days under whole day illumination, 25 degrees celsius is daily to shake 2-3 times, obtains Preliminary culture.Preliminary culture is inoculated in M0 fluid nutrient mediums, in whole day illumination, 25 degrees Celsius, cultivate 7 under the conditions of 150rpm My god, the removal efficiency of nitrate, total nitrogen and total phosphorus is measured weekly, and Liquid Culture is replaced after respectively reaching 50%, 40% and 40% Base M0, until the removal efficiency of nitrate, total nitrogen and total phosphorus respectively reaches the bead of acquisition screening after 80%, 50% and 60% Algae culture.
The culture of screening finds chlorella cells by dilution in low power magnifying glass, after sucking-off 5000 turns/min from Sediment is collected after the heart and is inoculated in M0 solid mediums, carries out line purifies and separates, by 2-3 acquisition waste water chlorella. The microalgae (waste water chlorella) of acquisition is put into the M0 fluid nutrient mediums of 500ml, by whole day illumination, is trained under 25 degrees celsius After supporting 3-5 days, 5ml liquid is taken out, M1 fluid nutrient mediums are added in after 5000 turns/min centrifugations, in 25 degrees Celsius, non-illumination condition Under cultivate 3 days again after, 5000 turns/min centrifugations, taking precipitate simultaneously replaces M1 fluid nutrient mediums, is repeated 2 times, finally centrifuges institute The sediment of acquisition is association flora, and association flora is used to add in central reaction unit.
The startup and operation of central reaction unit：
Central reaction unit has the function of aquatic bird Wastewater Pretreatment and strengthens periphery reaction member.The dirt of breeding wastewater Contaminating object concentration is respectively：Total nitrogen 40-48mg/L, ammonia nitrogen 31-33mg/L, total phosphorus 36-40mg/L, COD800-900mg/L, pH 6- Between 7, sewage solids suspended matter is in below 200mg/L.
Central reaction unit volume about 150-200L is passed through and dilutes 1 through culture medium M1：1 aquatic bird waste water (by volume), By the volume 1 with waste water：100 add in association flora, start, using interior circular flow, first not accessing periphery reaction member.Center Reaction member flow velocity is controlled by hydraulic detention time and set at 4-7 days.COD, total nitrogen and total phosphorus are measured weekly, when COD removal rates Reach more than 50%, total nitrogen goes removal rate to respectively reach more than 20% with total phosphorus, shortens hydraulic detention time by 2 days, per 2-3 days It measures and measures COD, total nitrogen and total phosphorus weekly, when COD removal rates reach more than 50%, total nitrogen goes removal rate to respectively reach with total phosphorus More than 20%, it is changed to be passed through breeding wastewater raw water and continuum micromeehanics, hydraulic detention time is set as 2-3 days, measures per 2-3 days every Week measures COD, total nitrogen and total phosphorus, when COD removal rates reach more than 50%, total nitrogen and total phosphorus go removal rate respectively reach 50% with On, the complete startup of reaction member.It should maintain reactor concentration of suspension (SS) 1000-2000mg/L.Water outlet after settler, Water outlet ss controls are 80mg/L-100mg/L, and periphery reaction member is transferred to by water circulating pump.
The startup and operation of periphery reaction member：
Periphery reaction member volume is 800L, and when operation first receives the water outlet from settler, is about 95% full of volume More than, stop water inlet after degree of filling to be achieved, periphery reaction member adds in chlorella, and (inoculation volume ratio is waste water：Algae is 500：1-1000：1).After 1-2 weeks preculture, ss maintains 1200mg/L-2000mg/L, weekly measure COD, total nitrogen with Total phosphorus, when COD removal rates reach more than 50%, total nitrogen goes removal rate to respectively reach more than 30% with total phosphorus, is changed to from sedimentation basin Continuum micromeehanics, during operation the residence time be arranged to 7 days, COD, total nitrogen and total phosphorus are then measured weekly, when COD removal rates reach More than 50%, total nitrogen and total phosphorus go removal rate to respectively reach more than 30%, complete the startup of periphery reaction member, then continuously from Central reaction unit is intake, and the residence time is arranged to 4-6 days.
Periphery reaction member can harvest chlorella when ss is more than 2000mg/L.A certain amount of microalgae companion is mixed in waste water Raw bacterium removes water pollutant with chlorella, forms synergistic effect together.
Experiment display：Waste water chlorella, the control group of association flora are set simultaneously in use, and reflection association flora promotes The degradation efficiency (Fig. 3) of waste water chlorella.As can be seen that association flora combined with waste water chlorella COD, ammonia nitrogen, total nitrogen with The removal of 3-5% is improved when the removal efficiency highest of total phosphorus, wherein total nitrogen, the removal efficiency of ammonia nitrogen be not than adding association flora Ability, COD removal abilities improve more than 20%.Waste water chlorella can obtain preferable breeding wastewater under the conjunction of concomitance bacterium flock mating Removal ability.
Fig. 4 is shown, is improved than what is be simply mixed in the removal efficiency of actual treatment integrated device, is especially existed After a certain period of time, proportioning operation can also maintain higher removal efficiency, and simply match and have certain decline for operation.It is (simple Mixing refers to be proportionally added into association flora in reactor is run rather than match by reactor to run).Comparison one dress It is to have bigger difference that culture, which is put, with the treatment effeciency simply cultivated.When influent COD cr concentration be 800mg/L, ammonia nitrogen 31mg/L, Total nitrogen is 46mg/L, and under conditions of total phosphorus is 36mg/L, water outlet CODcr concentration is 64mg/L when integrated device passes through 7 days, ammonia Nitrogen is 3.1mg/L, total nitrogen 5.1mg/L, total phosphorus 3.6mg/L, shows integrated device culture removal efficiency higher.
1 reaction unit removal efficiency of table
Embodiment 2
Buy chlorella pyrenoidosa, the entitled Chlorella pyrenoidesa of Latin.
From aquatic bird breeding wastewater, factory takes waste water 15-20L, is excluded by conventional, removes oil removal, after being aerated 30min, then Precipitate 30min；The chlorella of purchase is added in, additional proportion is volume ratio 1：100.It is rich under whole day illumination, 25 degrees celsius Collection culture 2-3 days, it is daily to shake 2-3 times, obtain preliminary culture.Preliminary culture is inoculated in M0 fluid nutrient mediums, in whole day Illumination, measures weekly the removal efficiency of nitrate, total nitrogen and total phosphorus, reaches respectively by 25 degrees Celsius, cultivate under the conditions of 150rpm 7 days Fluid nutrient medium M0 is replaced after to 50%, 40% and 40%, until the removal efficiency of nitrate, total nitrogen and total phosphorus respectively reaches It is obtained after 80%, 50% and 60% and expands culture.
Central reaction unit volume about 200L is passed through and dilutes 1 through culture medium M1：1 aquatic bird waste water (by volume), by with The volume 1 of waste water：100 add in association flora, start, using circular flow, first not accessing periphery reaction member.Central reaction list First flow velocity is controlled by hydraulic detention time and set at 7 days.COD, total nitrogen and total phosphorus are measured weekly, when COD removal rates reach 40% More than, total nitrogen goes removal rate to respectively reach more than 20-25% with total phosphorus, shortens hydraulic detention time by 3 days, measures within every 2 days every Week measures COD, total nitrogen and total phosphorus, when COD removal rates reach more than 50%, total nitrogen and total phosphorus go removal rate respectively reach 20% with On, it is changed to be passed through aquatic bird waste water raw water, is changed to continuum micromeehanics (from water inlet to water outlet 1), hydraulic detention time is set as 2-3 My god, it was measured per 2-3 days and measures COD, total nitrogen and total phosphorus weekly, when COD removal rates reach more than 50%, total nitrogen is removed with total phosphorus Rate respectively reaches more than 50%, the complete startup of central reaction unit.Central reaction unit is as aquatic bird Wastewater Pretreatment and reinforcing The function of periphery reaction member.Before processing, the pollutant concentration of breeding wastewater are respectively：Total nitrogen 40-48mg/L, ammonia nitrogen 31- Between 33mg/L, total phosphorus 36-40mg/L, COD800-900mg/L, pH 6-7, control water outlet solid suspension is in 100-200mg/ L。
The operation of other reference examples 1.
The results are shown in Table 2 for operation.When influent COD cr concentration is 800mg/L, ammonia nitrogen 28mg/L, total nitrogen 38mg/ L, under conditions of total phosphorus is 30mg/L, water outlet CODcr concentration is 64mg/L, ammonia nitrogen 2.5mg/ when integrated device passes through 7 days L, total nitrogen 7.6mg/L, total phosphorus 5.7mg/L show that the chlorella of purchase also can be suitably used for the present apparatus.
2 embodiment of table, 2 reaction unit removal efficiency
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party Formula carries out appropriate change and modification.Therefore, the invention is not limited in specific embodiment disclosed and described above, to this Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification In used some specific terms, but these terms are merely for convenience of description, do not limit the present invention in any way.

Claims (6)

1. a kind of device for removing breeding wastewater carbon nitrogen phosphorus, which is characterized in that including：
Volume is the central reaction unit of 100~200L, by being passed through breeding wastewater and adding in association flora, for breeding wastewater Pretreatment；
Volume is the periphery reaction member of 800~1000L, for further removing water pollutant；
The central reaction unit nesting is arranged in the reaction member of periphery, and central reaction unit is provided with the first water inlet and One water outlet；Periphery reaction member is provided with the second water inlet and the second water outlet, and first water outlet and described second It is connected between water inlet by pipeline, and settler and valve is provided on pipeline；
The volume of the settler is 5L, for first being precipitated before breeding wastewater is passed through periphery reaction member；
The isolated culture method of the association flora includes the following steps：
Breeding wastewater is taken, removes oil removal and macroplankton, then concentrate is obtained through filtering, filters, collects sediment, turn It moves on to M0 fluid nutrient mediums and carries out enrichment culture, obtained preliminary culture is centrifuged, gained precipitation is inoculated in M0 solid cultures Purifies and separates are carried out in base, is subsequently placed in M0 fluid nutrient mediums and cultivates, culture is finished through centrifugation, and gained precipitation adds in M1 liquid Expand culture in culture medium, culture finishes to be centrifuged again, and gained sediment is association flora；
Wherein, every liter of M0 fluid nutrient medium includes following component：NaNO31500mg, K2HPO40.04mg, MgSO4· 7H2O 75mg, CaCl2·2H2O 36mg, citric acid 6mg, EDTA 1mg, Na2CO320mg；
Every liter of M0 solid medium includes following component：NaNO31500mg, K2HPO40.04mg, MgSO47H2O 75mg, CaCl2 2H2O 36mg, citric acid 6mg, EDTA 1mg, Na2CO320mg, agar powder 2wt%；
Every liter of M1 fluid nutrient medium includes following component：CH3COONa 3.68g, Na2HPO428.73mg NH4Cl 57.27mg MgSO4131.82mg, K2SO426.74mg CaCl2·2H2O 17.2mg, pH 7.0.
2. the device according to claim 1 for being used to remove breeding wastewater carbon nitrogen phosphorus, which is characterized in that the central reaction In unit, the volume ratio of the breeding wastewater and association flora is 100:1.
3. the device according to claim 1 for being used to remove breeding wastewater carbon nitrogen phosphorus, which is characterized in that the enrichment culture It is to be cultivated 2~3 days under the conditions of whole day illumination, 25 DEG C, is shaken every day 2~3 times.
4. the device according to claim 1 for being used to remove breeding wastewater carbon nitrogen phosphorus, which is characterized in that described to expand culture It is to be cultivated 3~4 days under non-illumination, 25 DEG C of additions.
5. it is used to remove the operation side of the device of breeding wastewater carbon nitrogen phosphorus in Claims 1 to 4 described in any one claim Method, which is characterized in that
Breeding wastewater and association flora are passed through by the first water inlet in central reaction unit, start independent loops operation, first Hydraulic detention time is set as 4~7 days, treats that COD removal rates reach more than 50%, total nitrogen and total tp removal rate respectively reaches 20% More than when, set hydraulic detention time as 2~3 days, treat COD removal rates reach more than 50%, total nitrogen and total tp removal rate difference When reaching more than 50%, central reaction unit starts completely；
Periphery reaction member is passed through breeding wastewater, and adds in chlorella, places culture 4~6 days, treats that COD removal rates reach 50% Above, when total nitrogen and total tp removal rate respectively reach more than 30%, periphery reaction member starts completely；
By the breeding wastewater after central reaction cell processing by the first water outlet, flow into and 2~4h is precipitated in settler, then lead to Water circulating pump is crossed by breeding wastewater by the second water inlet, is handled into periphery reaction member, the water being disposed passes through Second water outlet is discharged.
6. the operation method of the device according to claim 5 for being used to remove breeding wastewater carbon nitrogen phosphorus, which is characterized in that institute It states in the reaction member of periphery, the volume ratio of the breeding wastewater and chlorella is 500~1000:1.
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