CN103449663B - Stepped-wall-type electrical and biochemical degradation system for treating livestock and poultry breeding sewage - Google Patents
Stepped-wall-type electrical and biochemical degradation system for treating livestock and poultry breeding sewage Download PDFInfo
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- CN103449663B CN103449663B CN201310343648.4A CN201310343648A CN103449663B CN 103449663 B CN103449663 B CN 103449663B CN 201310343648 A CN201310343648 A CN 201310343648A CN 103449663 B CN103449663 B CN 103449663B
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Abstract
The invention discloses a stepped-wall-type electrical and biochemical degradation system for treating livestock and poultry breeding sewage. The degradation system consists of an aerobic pool, a primary degradation wall, a facultative tank, a secondary degradation wall and a regulation pool, wherein aeration systems are arranged in the aerobic pool and the facultative tank, and the flow direction of inlet water is that the water enters from tops and exits from bottoms; independent reaction spaces formed by degradation units are formed in the primary degradation wall and the secondary degradation wall, and the water enters from bottoms and exits from tops; a standard mud discharging funnel is arranged below the independent reaction space, which is formed by the degradation units with the diameter of 4-5cm, at the upper part of the primary degradation wall, and a standard mud discharging funnel is arranged below the independent reaction space, which is formed by treating units with the diameter of 1-2cm, at the upper part of the secondary degradation wall. After the sewage is treated by the degradation system disclosed by the invention, the water quality is stable, the effect is good, the decoloring effect is obvious, and the sense is good. The treated sewage can exceed the requirements of national livestock and poultry breeding pollutant emission standards GB18596-2001, and reaches Zhejiang livestock and poultry breeding pollutant emission standards DB33/593-2005.
Description
Technical field
The present invention relates to a kind of device of sewage disposal, be specially a kind of step wall-for livestock and poultry cultivation sewage disposal electricity biochemical degradation system, belong to technical field of sewage.
Background technology
Along with the adjustment of China's structure of agricultural production and the propelling of agriculture industrialization, mass-producing, intensive livestock and poultry breeding industry are able to fast development, and the problem of environmental pollution brought thus is also day by day serious.Pollution from livestock and poultry oneself become the third-largest source of pollution after industrial pollution, domestic pollution, become the one of the main reasons of China's rural pollution.
At present, most aquaculture wastewater especially raises pigs sewage mostly based on biochemical method, the most commonly A2/O treatment process, biological tank is divided into anaerobism section, anoxic section, aerobic section three sections by the layout of aerating apparatus, thruster (anaerobism section and anoxic section) and return flow channel.In A2O treatment process, flora is primarily of nitrifier and denitrifying bacteria, polyP bacteria composition.At aerobic section, the ammonia nitrogen that the ammonia nitrogen in becoming a mandarin and organonitrogen ammonification become by nitrobacteria, by biological nitration effect, changes into nitrate; In anoxic section, the nitrate that internal reflux is brought into by denitrifying bacterium, by biological denitrification, changes into nitrogen and escapes in air, thus reaches the object of denitrogenation; In anaerobism section, polyP bacteria release phosphorus, and absorb 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.
Adopt A2/O art breading Pig raising wastewater, because COD, ammonia nitrogen concentration are high, partial raw water ammonia nitrogen concentration is more than 1000mg/L, and most treatment system water outlet all cannot stably reaching standard, and wherein ammonia nitrogen index compliance rate is minimum, and effluent color dilution is high, and sense organ is poor.
Summary of the invention
The object of the invention is, in order to provide a kind of step wall-for livestock and poultry cultivation sewage disposal electricity biochemical degradation system, to have solved the problems referred to above of prior art.
The object of the invention is to be achieved through the following technical solutions:
For a step wall-electricity biochemical degradation system for livestock and poultry cultivation sewage disposal, be made up of Aerobic Pond, one-level degraded wall, oxygen compatibility pool, secondary degraded wall and equalizing tank, arrange aerating system in described Aerobic Pond and oxygen compatibility pool, feed water flow is to being upper entering and lower leaving; Described one-level degraded wall and secondary degraded are provided with the independent reaction space of degraded unit composition within the walls, and current are bottom in and top out; Wherein, one-level degraded wall top forms independent reaction space by diameter in the degraded unit of 4-5cm, divides into standard spoil disposal funnel, and secondary degraded wall top forms independent reaction space by diameter in the processing elements of 1-2cm, divides into standard spoil disposal funnel; The mud produced bottom degraded wall, is regularly evacuated to sludge sump or sludge reflux by sludge pump.
Described aerating system is provided with multilayer, and the air outlet of aeration is downward or downward-sloping.
The aeration mode of described Aerobic Pond is for continuing aeration, and the aeration mode of oxygen compatibility pool is intermittent aeration.
Add appropriate ADM-catalyzer in described Aerobic Pond, the raw material of described ADM-catalyzer be water, ferrous sulfate and 30% dilute sulphuric acid, according to water: ferrous sulfate: the proportional arrangement of 30% sulfuric acid=40:2:1 becomes, and PH is 4.5-5.5.This solvent can provide next reaction needed for H
+, appropriate Fe can also be provided
+.
The working concentration of described ADM-catalyzer is 50%, dosage is automatically control, based on pH value according to former water, utilize PH probe and Automatic Dosing pump to reach Automatic Dosing, control pH value between 6.0-7.0, when PH is more than or equal to 7.0, Automatic Dosing pump startup, start dosing, when pH value is less than or equal to 6.0, Automatic Dosing pump stops dosing.
Like this, chemical feeding quantity can be controlled accurately, for next step reaction provide appropriate needed for H
+.In order to ensure that the H ﹢ provided keeps synchronous with measuring with the H ﹢ needed for electrolysis, PH is adopted automatically to control medicine system, effectively can avoid the impact that superfluous H ﹢ reacted next stage, open aerating apparatus simultaneously, utilize and continue aeration, the dissolved oxygen in waste water can be increased, improve the activity in waste water, also can even water quality, thus make the effect of interior light electrolysis reach reaction effect.Then enter one-level degraded wall, main and degraded unit reacts herein: anode: Fe-2e → Fe2++E(Fe/Fe2+)=0.44V; Negative electrode: 2H++2e → H2E (H ﹢/H2)=0.00V, when aerobic exists, cathodic reaction is as follows: O
2+ 4H++4e → 2H
2o E (O2)=1.23V; O2+2H2O+4e → 4OH ﹣ E(O2/OH-)=0.41V.4Fe → 4Fe
2++ 8e; 4Fe4Fe
2++ 10H
2o+O
2→ 4Fe(OH)
3+ 8H ﹢, through circulating reaction, can effectively reduce the COD in waste water, colourity, and a small amount of SS, improves the biodegradability of waste water simultaneously.Waste water through stop reaction after, enter oxygen compatibility pool, operation and principle identical with Aerobic Pond, but this place employing intermittent aeration.Secondary degraded wall degrading texture and principle and one-level wall of degrading is identical, only change the diameter of degraded unit, be one and effectively supplement processing unit, mainly for high-concentration waste water, its effect allows the biodegradability of waste water reach best, the degradation capability of further raising system.Whole system can reach more than 75% to the clearance of COD, and mud generation can be allowed to reduce 30%-50%.
The necessary device such as valve, pipeline, pilot circuit is eliminated in the present invention.
By the sewage after technical solution of the present invention process, water conditioning, effective, decolorizing effect is obvious, and sense organ is good.Sewage after manager can be better than the requirement of country's " livestock and poultry breeding industry pollutant emission standard ", reaches " Zhejiang Province's Pollution from livestock and poultry thing emission standard " DB33/593-2005 emission standard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention; (in figure, arrow is water (flow) direction)
In figure: 1, Aerobic Pond 2, one-level degraded wall 3, oxygen compatibility pool 4, secondary degraded wall 5, equalizing tank.
Embodiment
Constructional feature of the present invention is set forth further below in conjunction with accompanying drawing and specific embodiment:
As shown in Figure 1, a kind of electricity of the step wall-for livestock and poultry cultivation sewage disposal biochemical degradation system, be made up of Aerobic Pond 1, one-level degraded wall 2, oxygen compatibility pool 3, secondary degraded wall 4 and equalizing tank 5, arrange aerating system in described Aerobic Pond 1 and oxygen compatibility pool 3, feed water flow is to being upper entering and lower leaving; Be provided with the first independent reaction space formed of degraded in described one-level degraded wall 2 and secondary degraded wall 4, current are bottom in and top out; Wherein, one-level degraded wall 2 top forms independent reaction space by diameter in the degraded unit of 4-5cm, divides into standard spoil disposal funnel, and secondary degraded wall 4 top forms independent reaction space by diameter in the processing elements of 1-2cm, divides into standard spoil disposal funnel; The mud produced bottom degraded wall, is regularly evacuated to sludge sump or sludge reflux by sludge pump.
Described aerating system is provided with multilayer, and the air outlet of aeration is downward or downward-sloping.
The aeration mode of described Aerobic Pond 1 is for continuing aeration, and the aeration mode of oxygen compatibility pool 3 is intermittent aeration.
Add appropriate ADM-catalyzer in described Aerobic Pond 1, the raw material of described ADM-catalyzer be water, ferrous sulfate and 30% dilute sulphuric acid, according to water: ferrous sulfate: the proportional arrangement of 30% sulfuric acid=40:2:1 becomes, and PH is 4.5-5.5.This solvent can provide next reaction needed for H
+, appropriate Fe can also be provided
+.
The working concentration of described ADM-catalyzer is 50%, dosage is automatically control, based on pH value according to former water, utilize PH probe and Automatic Dosing pump to reach Automatic Dosing, control pH value between 6.0-7.0, when PH is more than or equal to 7.0, Automatic Dosing pump startup, start dosing, when pH value is less than or equal to 6.0, Automatic Dosing pump stops dosing.
By above-mentioned degraded wall system, test effect is as table 1 and table 2:
The effect of table 1, one-level degraded wall technique
The effect of table 2, secondary degraded wall technique
From upper table data, above-mentioned waste disposal plant and sewage water treatment method, sewage quality is stablized, effective, and decolorizing effect is obvious, and sense organ is good.Waste water after process can be better than the requirement of country's " livestock and poultry breeding industry pollutant emission standard " GB18596-2001, reaches " Zhejiang Province's Pollution from livestock and poultry thing emission standard " DB33/593-2005 emission standard.
Claims (5)
1. the electricity of the step wall-for a livestock and poultry cultivation sewage disposal biochemical degradation system, it is characterized in that: be made up of Aerobic Pond, one-level degraded wall, oxygen compatibility pool, secondary degraded wall and equalizing tank, arrange aerating system in described Aerobic Pond and oxygen compatibility pool, feed water flow is to being upper entering and lower leaving; Described one-level degraded wall and secondary degraded are provided with the independent reaction space of degraded unit composition within the walls, and current are bottom in and top out; Wherein, one-level degraded wall top forms independent reaction space by diameter in the degraded unit of 4-5cm, divides into standard spoil disposal funnel, and secondary degraded wall top forms independent reaction space by diameter in the processing elements of 1-2cm, divides into standard spoil disposal funnel.
2. a kind of electricity of the step wall-for livestock and poultry cultivation sewage disposal biochemical degradation system according to claim 1, it is characterized in that: described aerating system is provided with multilayer, and the air outlet of aeration is downward or downward-sloping.
3. a kind of electricity of the step wall-for livestock and poultry cultivation sewage disposal biochemical degradation system according to claim 1, is characterized in that: the aeration mode of described Aerobic Pond is for continuing aeration, and the aeration mode of oxygen compatibility pool is intermittent aeration.
4. a kind of electricity of the step wall-for livestock and poultry cultivation sewage disposal biochemical degradation system according to claim 1, it is characterized in that: in described Aerobic Pond, add appropriate ADM-catalyzer, the raw material of described ADM-catalyzer be water, ferrous sulfate and 30% dilute sulphuric acid, according to water: ferrous sulfate: the proportional arrangement of 30% sulfuric acid=40:2:1 becomes, and pH is 4.5-5.5.
5. a kind of electricity of the step wall-for livestock and poultry cultivation sewage disposal biochemical degradation system according to claim 4, it is characterized in that: the working concentration of described ADM-catalyzer is 50%, dosage is automatically control, and based on the pH value according to former water, utilizes pH probe and Automatic Dosing pump to reach Automatic Dosing, control ph is between 6.0-7.0, when pH is more than or equal to 7.0, Automatic Dosing pump startup, starts dosing, when pH value is less than or equal to 6.0, Automatic Dosing pump stops dosing.
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| CN201310343648.4A CN103449663B (en) | 2013-08-08 | 2013-08-08 | Stepped-wall-type electrical and biochemical degradation system for treating livestock and poultry breeding sewage |
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| CN103449663B true CN103449663B (en) | 2015-03-11 |
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| CN104984620A (en) * | 2015-06-30 | 2015-10-21 | 成都市新都区鑫悦空气净化设备厂 | Paint mist treatment equipment |
| CN104958984A (en) * | 2015-06-30 | 2015-10-07 | 成都市新都区鑫悦空气净化设备厂 | Catalytic pool for paint mist treatment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962216A (en) * | 2010-09-21 | 2011-02-02 | 复旦大学 | Method for removing harmful algae in water body by adopting electro-Fenton |
| CN102276108A (en) * | 2011-06-02 | 2011-12-14 | 江苏加德绿色能源有限公司 | Livestock/poultry biogas slurry purification device and method |
| CN102329047A (en) * | 2011-08-08 | 2012-01-25 | 崔勇 | Sewage treatment system and method for modularized culture farm |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962216A (en) * | 2010-09-21 | 2011-02-02 | 复旦大学 | Method for removing harmful algae in water body by adopting electro-Fenton |
| CN102276108A (en) * | 2011-06-02 | 2011-12-14 | 江苏加德绿色能源有限公司 | Livestock/poultry biogas slurry purification device and method |
| CN102329047A (en) * | 2011-08-08 | 2012-01-25 | 崔勇 | Sewage treatment system and method for modularized culture farm |
Non-Patent Citations (1)
| Title |
|---|
| Fenton试剂强化二级铁炭微电解预处理有机废水;冯晓娟等;《工业用水与废水》;20101031;第41卷(第5期);1.1-1.3及图1 * |
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Address after: 314100, Zhenhua Road 58, Wei Tong Street, Jiashan County, Jiaxing, Zhejiang Patentee after: Zhejiang Aidiman Environmental Science & Technology Co., Ltd. Address before: 314100, Zhenhua Road 58, Wei Tong Street, Jiashan County, Jiaxing, Zhejiang Patentee before: Zhejiang Aidiman Water Science & Technology Co., Ltd. |