CN109970176A - A kind of method of high-efficiency fermenting aquaculture wastewater - Google Patents
A kind of method of high-efficiency fermenting aquaculture wastewater Download PDFInfo
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- CN109970176A CN109970176A CN201910349140.2A CN201910349140A CN109970176A CN 109970176 A CN109970176 A CN 109970176A CN 201910349140 A CN201910349140 A CN 201910349140A CN 109970176 A CN109970176 A CN 109970176A
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- aquaculture wastewater
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention belongs to fermentation technical field, a kind of method for specifically disclosing high-efficiency fermenting aquaculture wastewater.This method comprises the following steps: aquaculture wastewater pressurization being discharged into No. 1 tank body after carrying out one time fermentation reaction and is flowed out from the discharge outlet of No. 1 tank body, is discharged into after repressurization in No. 2 tank bodies after carrying out secondary fermentation reaction and be discharged from the discharge outlet of No. 2 tank bodies；No. 1 tank body and No. 2 tank bodies are connected in series.The occupation area of equipment of the application is small, is 1/10th or so of traditional zymotic tank；Low cost is 1/8th or so of traditional zymotic tank；Fermentation efficiency is high, and traditional zymotic tank volume is 10-15 times for needing to store sewage day output.The fermentor of the application only needs to increase the power of high-pressure pump, improves the discharge of sewage to solve.In this application, as a source of power using the biogas of itself fermentation generation, do not have to external power, it can be in remote sites low cost long-time normal operation.
Description
Technical field
The invention belongs to fermentation technical field, in particular to a kind of method of high-efficiency fermenting aquaculture wastewater.This method uses
Itself fermentation generate biogas as a source of power, do not need external power, can remote sites low cost for a long time into
Row normal operation.
Background technique
Currently, the generally existing fermentation time of the fermentation of aquaculture wastewater is long, occupation area of equipment is big, treatment effeciency is low and warp
The problems such as lettuce after everfermentation is higher.
China or large agricultural country, agricultural and farming industry can generate a large amount of debirs daily, at present China
The regeneration treatment rate of debirs is very low, and common there are the following problems: (1) it is time-consuming too long, it can not quickly handle all with day
The accumulation of the waste and waste water of increasing；
(2) it digests to be not thorough, cannot effectively handle the organic sewage of high concentration, waste residue amount is big；
(3) water quality that treated, is unable to qualified discharge, also to carry out secondary treatment and even handle three times；(4) it consumes energy, consumption
Resource because reaction pool volume is generally very big, native land resource occupation area it is very big, while especially energy consumption and cost source.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology and deficiency, provides a kind of side of high-efficiency fermenting aquaculture wastewater
Method.This method using itself fermentation generate biogas as a source of power, do not need external power, can remote sites it is low at
This carries out normal operation for a long time.
The purpose of the invention is achieved by the following technical solution: a kind of method of high-efficiency fermenting aquaculture wastewater, including as follows
Step:
Aquaculture wastewater pressurization is discharged into No. 1 tank body to the discharge outlet stream after carrying out one time fermentation reaction from No. 1 tank body
Out, it is discharged into after repressurization in No. 2 tank bodies after carrying out secondary fermentation reaction and is discharged from the discharge outlet of No. 2 tank bodies；Described 1
Number tank body and No. 2 tank bodies are connected in series.
The one time fermentation reaction concrete operations are as follows: the pressurized spout high speed ejection from No. 1 tank body of sewage, by
In spout at cruciform symmetry and apart from close, sewage hits in central point fierceness after spout high speed ejection and forms atomization
Droplet, and tank base is dropped to from No. 1 tank body top under the effect of gravity, formation is hit again；Sewage is being hit at a high speed
It hits in motion process and discharges rapidly a large amount of biogas realization short time high-efficiency fermenting processes；When winter temperature is lower, No. 1 tank body
Interior steam jet sprays high steam simultaneously, and steam and atomization sewage hit, heats sewage rapidly, sewage fermentation temperature is allowed to protect
It holds at 25 degree or more.
The secondary fermentation reaction concrete operations are as follows: in No. 2 tank bodies, sewage repeats No. 1 tank body again
Fermentation process, the pressurized spout high speed ejection from No. 2 tank bodies of sewage, since spout is at cruciform symmetry and distance
Close, sewage hits in central point fierceness after spout high speed ejection and forms atomization droplet, and under the effect of gravity from described 2
Tank base is fallen on number tank body top, and formation is hit again；Sewage discharges rapidly a large amount of biogas in high-speed impact motion process
Realize short time high-efficiency fermenting process.
In one of them embodiment, the method for the high-efficiency fermenting aquaculture wastewater further includes and No. 2 tank body strings
No. 3 tank bodies of connection；Two fermentation tanks corresponding day processing sewage quantity used in parallel is up to 300 tons, when needing to increase treating capacity,
Fermentor group can be increased.
In one of them embodiment, hydraulic pressure >=35mpa of the sewage of the discharge outlet outflow of No. 1 tank body.To protect
It demonstrate,proves sewage fast reaction and generates biogas, force (forcing) pump needs to adjust suitable power, guarantees the sewage water that spout sprays in tank body
Pressure is not less than 35mpa.
In one of them embodiment, hydraulic pressure >=35mpa of the sewage of the discharge outlet outflow of No. 2 tank bodies.To protect
It demonstrate,proves sewage fast reaction and generates biogas, force (forcing) pump needs to adjust suitable power, guarantees the sewage water that spout sprays in tank body
Pressure is not less than 35mpa.
In one of them embodiment, the discharge outlet is provided with long tapered flow passage nozzle, the long tapered flow passage
The constriction coefficient of the jet stream of nozzle outflow is 0.9.Bring high-pressure pump working efficiency is reduced to reduce high pressure nozzle in moment
Loss, using long tapered flow passage nozzle, when jet stream is flowed out from nozzle, shrinkage degree is smaller, therefore constriction coefficient is bigger, can
With close to 0.9.
In one of them embodiment, No. 1 tank body is connect with biogas generator respectively with No. 2 tank bodies.For
Dependence to extraneous electric power when reducing equipment operation, prevents that outlying district from often having a power failure or electric power is insufficient, by tank body and biogas hair
Motor connection carries out power generation using a large amount of biogas of sewage disposal process generation and equipment is maintained voluntarily to operate, and corresponding day handles sewage
The generator power of 200 tons of amount is 80 kilowatts.
In one of them embodiment, multiple high temperature are respectively arranged in No. 1 tank body and in No. 2 tank bodies and are steamed
Vapour nozzle.For improve winter fermentation tank fermentation efficiency, in tank body be arranged high-temperature steam nozzle, winter temperature it is low when
It waits, sewage mixes in tank body with high-temperature steam after nozzle ejection, and instantaneous lifts tank body temperature guarantees hair to 25 degree or more
Ferment normally generates, and steam, which can be burnt by the biogas generated through methane boiler, to be generated, and does not have to use outside energy.
In one of them embodiment, No. 1 tank body is 5 meters high, and No. 1 tank body is cylinder, 2 meters of diameter, institute
The tank deck for stating No. 1 tank body is dome-type, and the tank deck is provided with the gas outlet for discharging biogas, and No. 1 tank body is liftoff
The position that 4 meters of face height is provided with the symmetrical water inlet spray head of 4 across, the water inlet spray head be fixed by the bracket in
In No. 1 tank body, at a distance of 60cm between the water inlet spray head, part of the water inlet spray head outside No. 1 tank body is connected with
Water inlet pipe, the water inlet pipe are connect with high-pressure pump.When work, aquaculture wastewater is pressed into No. 1 tank body by high-pressure pump, is sprayed from 4 water inlets
Head sprays, and after 4 sewerages spray at water inlet spray head, high velocity impact discharges rapidly biogas, and biogas is arranged by the exhaust outlet of tank deck
Out, into gas holder is deposited, the sewage after collision drops into tank bottom under the effect of gravity, the discharge outlet discharge by tank bottom,
It is impacted because sewage falls to hitting tank base and generate, sewage can discharge biogas again.
No. 1 tank body is provided with automatic exhaust steam valve, can prevent the exhaust outlet of tank deck from blocking and cause air pressure in tank excessive.
The lower part of No. 1 tank body is equipped with 1.5 meters high of switchable maintenance door, so as to mud in periodic cleaning tank, prevents
Only mud excessively blocks discharge outlet.
Described 2 meters of eminences of No. 1 tank body are equipped with gap, and such as the water drainage hole plug of tank base, sewage can be from gap
Discharge.
In one of them embodiment, No. 2 tank bodies are 5 meters high, and No. 2 tank bodies are cylinder, 2 meters of diameter, institute
The tank deck for stating No. 2 tank bodies is dome-type, and the tank deck is provided with the gas outlet for discharging biogas, and No. 2 tank bodies are liftoff
The position that 4 meters of face height is provided with the symmetrical water inlet spray head of 4 across, the water inlet spray head be fixed by the bracket in
In No. 2 tank bodies, at a distance of 60cm between the water inlet spray head, part of the water inlet spray head outside No. 2 tank bodies is connected with
Water inlet pipe, the water inlet pipe are connect with high-pressure pump.When work, aquaculture wastewater is pressed into No. 2 tank bodies by high-pressure pump, is sprayed from 4 water inlets
Head sprays, and after 4 sewerages spray at water inlet spray head, high velocity impact discharges rapidly biogas, and biogas is arranged by the exhaust outlet of tank deck
Out, into gas holder is deposited, the sewage after collision drops into tank bottom under the effect of gravity, the discharge outlet discharge by tank bottom,
It is impacted because sewage falls to hitting tank base and generate, sewage can discharge biogas again.
No. 2 tank bodies are provided with automatic exhaust steam valve, can prevent the exhaust outlet of tank deck from blocking and cause air pressure in tank excessive.
The lower part of No. 2 tank bodies is equipped with 1.5 meters high of switchable maintenance door, so as to mud in periodic cleaning tank, prevents
Only mud excessively blocks discharge outlet.
Described 2 meters of eminences of No. 2 tank bodies are equipped with gap, and such as the water drainage hole plug of tank base, sewage can be from gap
Discharge.
No. 1 or No. 2 tank bodies are generally made using stainless steel.For guarantee fermentor sewage load, day handle the time with
It calculates within 10 hours, high-pressure hydraulic pump flow was day output divided by 10 hours.
The present invention has the following advantages and effects with respect to the prior art: the occupation area of equipment of the application is small, to pass
/ 10th or so of system fermentor；Low cost is 1/8th or so of traditional zymotic tank；Fermentation efficiency is high, traditional zymotic
Tank volume is 10-15 times for needing to store sewage day output.The fermentor of the application only needs to increase the power of high-pressure pump, mentions
The high discharge of sewage can solve.In this application, as a source of power using the biogas of itself fermentation generation, external electrical is not had to
Power, can be in remote sites low cost long-time normal operation.The application can be applied to farming industry, livestock culture industry etc.
Industry, such as sugar refinery, Chinese medicine processing factory, dairy cow farm.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.
Unless otherwise defined, all technical and scientific terms used herein belong to the skill of the technical field of the application
The normally understood meaning of art personnel is identical.Used term is intended merely to description specific embodiment in the description herein
Purpose, it is not intended that in limitation the application.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can explicitly or implicitly include at least one of the features.In the description of the present application, the meaning of " plurality " is at least two,
Such as two, three etc., unless otherwise specifically defined.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "upper", "lower", "left", "right" and similar statement for illustrative purposes only, be not offered as being uniquely to implement
Mode.
Embodiment
A kind of method of high-efficiency fermenting aquaculture wastewater, includes the following steps:
Aquaculture wastewater pressurization is discharged into No. 1 tank body to the discharge outlet stream after carrying out one time fermentation reaction from No. 1 tank body
Out, it is discharged into after repressurization in No. 2 tank bodies after carrying out secondary fermentation reaction and is discharged from the discharge outlet of No. 2 tank bodies；Described 1
Number tank body and No. 2 tank bodies are connected in series；
The one time fermentation reaction concrete operations are as follows: sewage is pressurized to be sprayed from 4 spouts high speed of No. 1 tank body
Out, since spout is at cruciform symmetry and apart from close, sewage hits in central point fierceness after spout high speed ejection and is formed
It is atomized droplet, and drops to tank base from No. 1 tank body top under the effect of gravity, formation is hit again；Sewage is in height
A large amount of biogas are discharged rapidly during fast percussion movement realizes short time high-efficiency fermenting process；When winter temperature is lower, described No. 1
The intracorporal steam jet of tank sprays high steam simultaneously, and steam and atomization sewage are hit, and heats sewage rapidly, makes sewage fermentation warm
Degree is maintained at 25 degree or more.
The secondary fermentation reaction concrete operations are as follows: in No. 2 tank bodies, sewage repeats No. 1 tank body again
Fermentation process, the pressurized 4 spout high speed ejection from No. 2 tank bodies of sewage, due to spout at cruciform symmetry and away from
Close, sewage hits in central point fierceness after spout high speed ejection and forms atomization droplet, and under the effect of gravity from institute
It states No. 2 tank body tops and falls tank base, formation is hit again；Sewage discharges rapidly a large amount of natural ponds in high-speed impact motion process
Gas realizes short time high-efficiency fermenting process.
In another embodiment, the method for the high-efficiency fermenting aquaculture wastewater further includes and No. 2 tank bodies concatenated No. 3
Tank body；Two fermentation tanks corresponding day processing sewage quantity used in parallel is up to 300 tons, when needing to increase treating capacity, Ke Yizeng
Add fermentor group.
In the present embodiment, hydraulic pressure >=35mpa of the sewage of the discharge outlet outflow of No. 1 tank body.To guarantee that sewage is fast
Speed reaction generates biogas, and force (forcing) pump needs to adjust suitable power, guarantees that the sewage hydraulic pressure that spout sprays in tank body is not less than
35mpa。
In the present embodiment, hydraulic pressure >=35mpa of the sewage of the discharge outlet outflow of No. 2 tank bodies.To guarantee that sewage is fast
Speed reaction generates biogas, and force (forcing) pump needs to adjust suitable power, guarantees that the sewage hydraulic pressure that spout sprays in tank body is not less than
35mpa。
In the present embodiment, the discharge outlet is provided with long tapered flow passage nozzle, the long tapered flow passage nozzle outflow
Jet stream constriction coefficient be 0.9.The loss that bring high-pressure pump working efficiency is reduced to reduce high pressure nozzle in moment, uses
Long tapered flow passage nozzle, when jet stream is flowed out from nozzle, shrinkage degree is smaller, therefore constriction coefficient is bigger, can be close to
0.9。
In the present embodiment, No. 1 tank body is connect with biogas generator respectively with No. 2 tank bodies.To reduce equipment
It to the dependence of extraneous electric power when operation, prevents that outlying district from often having a power failure or electric power is insufficient, tank body is connect with biogas generator,
Carrying out power generation using a large amount of biogas of sewage disposal process generation maintains equipment voluntarily to operate, and corresponding day handles 200 tons of sewage quantity
Generator power is 80 kilowatts.
In the present embodiment, multiple high-temperature steam nozzles are respectively arranged in No. 1 tank body and in No. 2 tank bodies.
For improve winter fermentation tank fermentation efficiency, in tank body be arranged high-temperature steam nozzle, when winter temperature is low, sewage from
Nozzle mixes in tank body with high-temperature steam after spraying, and instantaneous lifts tank body temperature guarantees that fermentation is normal and produce to 25 degree or more
Raw, steam, which can be burnt by the biogas generated through methane boiler, to be generated, and does not have to use outside energy.
In the present embodiment, No. 1 tank body is 5 meters high, and No. 1 tank body is cylinder, 2 meters of diameter, No. 1 tank body
Tank deck be dome-type, the tank deck is provided with the gas outlet for discharging biogas, and No. 1 tank body is in 4 meters of height from the ground
Position be provided with the symmetrical water inlet spray head of 4 across, the water inlet spray head is fixed by the bracket in No. 1 tank
In vivo, at a distance of 60cm between the water inlet spray head, part of the water inlet spray head outside No. 1 tank body is connected with water inlet pipe, institute
Water inlet pipe is stated to connect with high-pressure pump.When work, aquaculture wastewater is pressed into No. 1 tank body by high-pressure pump, is sprayed from 4 water inlet spray heads, 4 rows
After sewage sprays at water inlet spray head, high velocity impact discharges rapidly biogas, and biogas is discharged by the exhaust outlet of tank deck, into depositing
Gas holder, the sewage after collision drop into tank bottom under the effect of gravity, the discharge outlet discharge by tank bottom, because sewage falls
It hits tank base and generates impact, sewage can discharge biogas again.
No. 1 tank body is provided with automatic exhaust steam valve, can prevent the exhaust outlet of tank deck from blocking and cause air pressure in tank excessive.
The lower part of No. 1 tank body is equipped with 1.5 meters high of switchable maintenance door, so as to mud in periodic cleaning tank, prevents
Only mud excessively blocks discharge outlet.
Described 2 meters of eminences of No. 1 tank body are equipped with gap, and such as the water drainage hole plug of tank base, sewage can be from gap
Discharge.
In the present embodiment, No. 2 tank bodies are 5 meters high, and No. 2 tank bodies are cylinder, 2 meters of diameter, No. 2 tank bodies
Tank deck be dome-type, the tank deck is provided with the gas outlet for discharging biogas, and No. 2 tank bodies are in 4 meters of height from the ground
Position be provided with the symmetrical water inlet spray head of 4 across, the water inlet spray head is fixed by the bracket in No. 2 tanks
In vivo, at a distance of 60cm between the water inlet spray head, part of the water inlet spray head outside No. 2 tank bodies is connected with water inlet pipe, institute
Water inlet pipe is stated to connect with high-pressure pump.When work, aquaculture wastewater is pressed into No. 2 tank bodies by high-pressure pump, is sprayed from 4 water inlet spray heads, 4 rows
After sewage sprays at water inlet spray head, high velocity impact discharges rapidly biogas, and biogas is discharged by the exhaust outlet of tank deck, into depositing
Gas holder, the sewage after collision drop into tank bottom under the effect of gravity, the discharge outlet discharge by tank bottom, because sewage falls
It hits tank base and generates impact, sewage can discharge biogas again.
No. 2 tank bodies are provided with automatic exhaust steam valve, can prevent the exhaust outlet of tank deck from blocking and cause air pressure in tank excessive.
The lower part of No. 2 tank bodies is equipped with 1.5 meters high of switchable maintenance door, so as to mud in periodic cleaning tank, prevents
Only mud excessively blocks discharge outlet.
Described 2 meters of eminences of No. 2 tank bodies are equipped with gap, and such as the water drainage hole plug of tank base, sewage can be from gap
Discharge.
No. 1 or No. 2 tank bodies are generally made using stainless steel.For guarantee fermentor sewage load, day handle the time with
It calculates within 10 hours, high-pressure hydraulic pump flow was day output divided by 10 hours.
The occupation area of equipment of the application is small, is 1/10th or so of traditional zymotic tank；Low cost is traditional zymotic tank
1/8th or so；Fermentation efficiency is high, and traditional zymotic tank volume is 10-15 times for needing to store sewage day output.This Shen
Fermentor please only needs to increase the power of high-pressure pump, improves the discharge of sewage to solve.In this application, it is sent out using itself
The biogas that ferment generates as a source of power, does not have to external power, can be in remote sites low cost long-time normal operation.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of method of high-efficiency fermenting aquaculture wastewater, which comprises the steps of:
Aquaculture wastewater pressurization is discharged into No. 1 tank body after carrying out one time fermentation reaction and is flowed out from the discharge outlet of No. 1 tank body, warp
It is discharged into after repressurization in No. 2 tank bodies after carrying out secondary fermentation reaction and is discharged from the discharge outlet of No. 2 tank bodies；No. 1 tank
Body and No. 2 tank bodies are connected in series.
2. the method for high-efficiency fermenting aquaculture wastewater according to claim 1, which is characterized in that the high-efficiency fermenting cultivation is dirty
The method of water further includes and concatenated No. 3 tank bodies of No. 2 tank bodies.
3. the method for high-efficiency fermenting aquaculture wastewater according to claim 1, which is characterized in that the draining of No. 1 tank body
Hydraulic pressure >=35mpa of the sewage of mouth outflow；Hydraulic pressure >=35mpa of the sewage of the discharge outlet outflow of No. 2 tank bodies.
4. the method for high-efficiency fermenting aquaculture wastewater according to claim 1, which is characterized in that the discharge outlet is provided with
The constriction coefficient of long tapered flow passage nozzle, the jet stream of the long tapered flow passage nozzle outflow is 0.9.
5. the method for high-efficiency fermenting aquaculture wastewater according to claim 1, which is characterized in that No. 1 tank body and described 2
Number tank body is connect with biogas generator respectively.
6. the method for high-efficiency fermenting aquaculture wastewater according to claim 1, which is characterized in that in No. 1 tank body and institute
It states and is respectively arranged with multiple high-temperature steam nozzles in No. 2 tank bodies.
7. the method for high-efficiency fermenting aquaculture wastewater according to claim 1, which is characterized in that No. 1 tank body is 5 meters high,
No. 1 tank body is cylinder, 2 meters of diameter, and the tank deck of No. 1 tank body is dome-type, and the tank deck is provided with for discharging
The gas outlet of biogas, No. 1 tank body are provided with 4 symmetrical water inlets of across in the position of 4 meters of height from the ground
Spray head, the water inlet spray head are fixed by the bracket in No. 1 tank body, at a distance of 60cm, the water inlet between the water inlet spray head
Part of the spray head outside No. 1 tank body is connected with water inlet pipe, and the water inlet pipe is connect with high-pressure pump.
8. the method for high-efficiency fermenting aquaculture wastewater according to claim 7, which is characterized in that No. 1 tank body is provided with
Automatic exhaust steam valve；The lower part of No. 1 tank body is equipped with 1.5 meters high of switchable maintenance door；Described 2 meters of eminences of No. 1 tank body are set
There is gap.
9. the method for high-efficiency fermenting aquaculture wastewater according to claim 1, which is characterized in that No. 2 tank bodies are 5 meters high,
No. 2 tank bodies are cylinder, 2 meters of diameter, and the tank deck of No. 2 tank bodies is dome-type, and the tank deck is provided with for discharging
The gas outlet of biogas, No. 2 tank bodies are provided with 4 symmetrical water inlets of across in the position of 4 meters of height from the ground
Spray head, the water inlet spray head are fixed by the bracket in No. 2 tank bodies, at a distance of 60cm, the water inlet between the water inlet spray head
Part of the spray head outside No. 2 tank bodies is connected with water inlet pipe, and the water inlet pipe is connect with high-pressure pump.
10. the method for high-efficiency fermenting aquaculture wastewater according to claim 9, which is characterized in that No. 2 tank bodies are provided with
Automatic exhaust steam valve；The lower part of No. 2 tank bodies is equipped with 1.5 meters high of switchable maintenance door；Described 2 meters of eminences of No. 2 tank bodies are set
There is gap.
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Application publication date: 20190705 |