CN105621808A - Adsorptive aeration filter tank, artificial wetland and ecological pond coupling device and application thereof - Google Patents

Adsorptive aeration filter tank, artificial wetland and ecological pond coupling device and application thereof Download PDF

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Publication number
CN105621808A
CN105621808A CN201610082097.4A CN201610082097A CN105621808A CN 105621808 A CN105621808 A CN 105621808A CN 201610082097 A CN201610082097 A CN 201610082097A CN 105621808 A CN105621808 A CN 105621808A
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China
Prior art keywords
pond
sewage
adsorption filter
ammonia nitrogen
pact
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CN201610082097.4A
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Inventor
袁冬海
熊瑛
严陈玲
张列宇
席北斗
李俊奇
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Beijing University of Civil Engineering and Architecture
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Beijing University of Civil Engineering and Architecture
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Priority to CN201610082097.4A priority Critical patent/CN105621808A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/06Aerobic processes using submerged filters
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae

Abstract

The invention discloses an adsorptive aeration filter tank, artificial wetland and ecological pond coupling device and application thereof to wastewater treatment. The device comprises a concentration tank, a WAR (wet air regeneration) reactor, a heat exchanger, a PACT (powered activated carbon treatment) tank, a biological ammonia nitrogen adsorptive aeration filter tank, a wastewater backflow tank, a wastewater denitrification tank, a deep phosphorus adsorption filter tank, artificial wetland and an ecological pond. The concentration tank is connected with the WAR reactor which is connected with the heat exchanger, the heat exchanger is connected with the PACT tank which is connected with the concentration tank and the biological ammonia nitrogen adsorptive aeration filter tank, the biological ammonia nitrogen adsorptive aeration filter tank is connected with the wastewater backflow tank, the wastewater denitrification tank and the deep phosphorus adsorption filter tank, and the deep phosphorus adsorption filter tank is connected with the artificial wetland which is connected with the biological pond. The adsorptive aeration filter tank, artificial wetland and ecological pond coupling device and application thereof have the advantages that pollutant in wastewater can be removed, energy consumption and cost in a treatment process are greatly reduced, and a resource regeneration process is well completed.

Description

The coupling device of absorption aerating filter and artificial swamp-ecological pond and application thereof
Technical field
The present invention relates to the coupling device of a kind of batch-type absorption aerating filter and artificial swamp-ecological pond, be specifically related to the device of a kind of advanced treatment of wastewater collecting physical absorption, biomembrance process and artificial swamp-ecological pond combination. The invention still further relates to the application in sewage disposal of this device, namely utilize the method that said apparatus processes sewage.
Background technology
Recently as the lifting of China's economic level, also beginning to reform in the municipal wastewater treatment technology of China, conventionally employed main technique all improves with activated sludge process for core process and strengthens, and mainly includes A2/ O, SBR, CASS etc., although these methods can obtain good Nitrogen/Phosphorus Removal, but it is respectively provided with that floor space is big, one-time investment is high, technology controlling and process is complicated, also can produce a large amount of activated sludge, some technique needs external carbon source to add and chemical reagent dephosphorization simultaneously, considerably increase process costs, this greatly limits these techniques promoting the use of at China's wide geographic area, promote a conservation culture and the target of scientific development to realize China. Sewage treatment process also should be improved, and reduces energy consumption and environment side effect while realizing sewage disposal.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of novel sewage-treatment plant and the application in sewage disposal thereof, namely utilize the method that this device carries out sewage disposal. Specifically, the present invention provides the coupling device of a kind of batch-type absorption aerating filter and artificial swamp-ecological pond, more specifically, it relates to a kind of device collecting physical absorption, biomembrance process and the advanced treatment of wastewater with artificial swamp-ecological pond combination, this device can remove the polluter in sewage, reduce operating cost, the generation of containment sludge odor, be provided simultaneously with environmental landscape benefit.
For achieving the above object, a first aspect of the present invention provides the coupling device of a kind of batch-type absorption aerating filter and artificial swamp-ecological pond, comprising: concentration basin, WAR (WetAirRegeneration, wet type air regenerates) reactor, heat exchanger, PACT (PowderedActivatedCarbonTreatment, Powdered Activated Carbon process) pond, ammonia nitrogen aeration and biological adsorption filter, sewage backflow pond, sewage denitrification pond, deep type phosphorus adsorption filter, artificial swamp and ecological pond; Wherein, described concentration basin connects described WAR reactor, described WAR reactor connects described heat exchanger, described heat exchanger connects described PACT pond, described PACT pond connects described concentration basin and described ammonia nitrogen aeration and biological adsorption filter respectively, described ammonia nitrogen aeration and biological adsorption filter connects described sewage backflow pond, described sewage denitrification pond and described deep type phosphorus adsorption filter respectively, and described deep type phosphorus adsorption filter connects described artificial swamp, and described artificial swamp connects described ecological pond;
Described concentration basin is for making the excess sludge concentrating and precipitating produced in described PACT pond;
Described WAR reactor is for making the described excess sludge wet air regeneration of concentrating and precipitating, and the residue after emission treatment;
The mud that activated carbon adheres to, for the charging and discharging heat exchange of described WAR reactor, is oxidized to inorganic matter by described heat exchanger, again returns to reuse in described PACT pond by the activated carbon having recovered activity;
Mineralized nitrogen, for the organic pollution in sewage is changed into carbon dioxide and water, is become nitrate nitrogen, and makes heavy metal ion solidify precipitation by described PACT pond;
Described ammonia nitrogen aeration and biological adsorption filter is used for adsorbing ammonia nitrogen, the sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond, and is nitrate nitrogen by the ammonium oxidation adsorbed;
Described sewage backflow pond is used for storing sewage;
Described sewage denitrification pond is for making the organic pollution denitrification in nitrate nitrogen and sewage;
Described deep type phosphorus adsorption filter is used for dephosphorization, and removes the organic pollution of residual in sewage;
Described artificial swamp and described ecological pond are for removing the organic pollution of remnants, nitrogen phosphorus compound and microorganism in sewage.
Preferably, the filler in described PACT pond is activated carbon and red mud molecular sieve, and the thickness of filler is preferably the filtering velocity in 2-3m, PACT pond and is preferably 6-8m/h.
Preferably, the filler of described ammonia nitrogen aeration and biological adsorption filter is artificial zeolite or natural zeolite, the particle diameter of described artificial zeolite or natural zeolite is more preferably 2-4mm, the thickness of filler is preferably 1.5-2.5m, the filtering velocity of ammonia nitrogen aeration and biological adsorption filter is preferably 4-8m/h, and the mode of intermittent aeration preferably taked by ammonia nitrogen aeration and biological adsorption filter.
Preferably, the filler of described deep type phosphorus adsorption filter adopts synthetic filler, it is preferred that selecting the synthetic filler that ferrosilicon magnalium content is higher, the thickness of described filler is preferably in 5-6m, and the filtering velocity of deep type phosphorus adsorption filter is preferably 2-3m/h.
Preferably, described artificial swamp and ecological pond are as compound sewage advanced treatment process, it is possible to carry out concrete design and combination according to practical situation. The kinds of processes such as vertical current constructed wetland, cross-current compound wetland, aerobic ponds and chinampa ecological pond can be adopted to be combined according to project occupation of land, investment situation and local economy social circumstance in the specific implementation. Described artificial swamp preferably employs limestone, gravel and Fu Luoli kieselguhr as filler. Wherein, described artificial swamp and ecological pond are existing sewage treatment process.
Preferably, the temperature in described WAR reactor is 226��246 DEG C, and pressure is 6��10Mpa, and the time of staying is 1��2h.
Preferably, the charcoal mud concentration of WAR reactor > 9%, suspended solid amount must not lower than 9%, to provide WAR reactor stable sludge quantity.
Preferably, described PACT pond, WAR reactor, heat exchanger outer wall use heat-insulation layer insulation, reduce thermal loss.
Preferably, after described WAR reactor, heat exchanger run a period of time, dust technology is adopted to clean the fouling of inwall.
Preferably, the aerator in described PACT pond adopts nanometer aeration machine, and air inlet is O2, strengthen local cavitation effect by nanometer aeration and produce.
A second aspect of the present invention provides the application in sewage disposal of the coupling device of above-mentioned batch-type absorption aerating filter and artificial swamp-ecological pond.
A third aspect of the present invention provides a kind of method that coupling device utilizing above-mentioned batch-type absorption aerating filter and artificial swamp-ecological pond carries out sewage disposal, comprises the steps:
(1) sewage is passed into described PACT pond, dirt organic pollutants is changed into carbon dioxide and water, mineralized nitrogen is become nitrate nitrogen, and makes heavy metal ion solidify precipitation;
(2) sewage processed through step (1) is passed into described ammonia nitrogen aeration and biological adsorption filter to adsorb ammonia nitrogen from described PACT pond, sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond, and is nitrate nitrogen by the ammonium oxidation adsorbed;
(3) sewage is passed into described sewage denitrification pond from described sewage backflow pond, the organic pollution in nitrate nitrogen and sewage is carried out denitrification;
(4) sewage processed through step (3) is passed into described deep type phosphorus adsorption filter with dephosphorization from described sewage denitrification pond, and remove the residual organic contaminants in sewage;
(5) sewage is passed sequentially through artificial swamp and ecological pond from described deep type phosphorus adsorption filter, to remove remaining organic pollution in sewage, nitrogen phosphorus compound and microorganism.
In order to sewage carries out the process of full blast continuously, making device be continuously in optimum Working, described method preferably also includes the step that coupling device carries out self-regeneration, including:
(6) excess sludge produced in described PACT pond passes into described concentration basin and carries out concentrating and precipitating;
(7) the described excess sludge of concentrating and precipitating passes into described WAR reactor and carries out wet air regeneration;
(8) the described excess sludge of wet air regeneration passes into described heat exchanger, the charging and discharging of described WAR reactor are carried out heat exchange, the mud that activated carbon adheres to is oxidized to inorganic matter, again return to described PACT pond is reused by the activated carbon having recovered activity, the residue after direct emission treatment.
The present invention achieves following positive progressive effect: the present invention breaches the thinking of traditional activated sludge process, overcome traditional activated sludge process and go the bottleneck problem of COD and ammonia nitrogen simultaneously, take the compound technology route that physical absorption, biomembrance process and artificial swamp-ecological pond technique combine, COD in sewage is removed by denitrification, NH3-N in sewage is by nitrated removal, considerably reduce energy consumption, stable effluent quality, one-level A can be reached, operating cost is only the 1/3 of traditional activated sludge process, has fabulous application prospect. Meanwhile, artificial swamp-the ecology pond systems not only has environmental landscape benefit, it is also possible to form combinational environment economic system by livestock culture.
Accompanying drawing explanation
Fig. 1 is assembly of the invention schematic diagram.
[description of reference numerals]
1 concentration basin 2WAR reactor
3PACT pond 4 ammonia nitrogen aeration and biological adsorption filter
5 sewage denitrification pond, sewage backflow ponds 6
7 deep type phosphorus adsorption filter 8 artificial swamps
9 ecological pond 10 heat exchangers
A, B valve
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, the batch-type absorption aerating filter of the present invention and the coupling device of artificial swamp-ecological pond, comprising: concentration basin 1, WAR reactor 2, heat exchanger 10, PACT pond 3, ammonia nitrogen aeration and biological adsorption filter 4, sewage backflow pond 5, sewage denitrification pond 6, deep type phosphorus adsorption filter 7, artificial swamp 8 and ecological pond 9; Wherein, described concentration basin 1 connects described WAR reactor 2, described WAR reactor 2 connects described heat exchanger 10, described heat exchanger 10 connects described PACT pond 3, described PACT pond 3 connects described concentration basin 1 and described ammonia nitrogen aeration and biological adsorption filter 4 respectively, described ammonia nitrogen aeration and biological adsorption filter 4 connects described sewage backflow pond 5, sewage denitrification pond 6 and described deep type phosphorus adsorption filter 7 respectively, described deep type phosphorus adsorption filter 7 connects described artificial swamp 8, and described artificial swamp 8 connects described ecological pond 9;
Described concentration basin 1 is for making the excess sludge concentrating and precipitating produced in described PACT pond 3;
Described WAR reactor 2 is for making the described excess sludge wet air regeneration of concentrating and precipitating, and the residue after emission treatment;
The mud that activated carbon adheres to, for the charging and discharging heat exchange of described WAR reactor 2, is oxidized to inorganic matter by described heat exchanger 10, again returns to reuse in described PACT pond 3 by the activated carbon having recovered activity;
Mineralized nitrogen, for the organic pollution in sewage is changed into carbon dioxide and water, is become nitrate nitrogen, and makes heavy metal ion solidify precipitation by described PACT pond 3;
Described ammonia nitrogen aeration and biological adsorption filter 4 is used for adsorbing ammonia nitrogen, the sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond 5, and is nitrate nitrogen by the ammonium oxidation adsorbed;
Described sewage backflow pond 5 is used for storing sewage, and sewage passes into described sewage denitrification pond 6;
Described deep type phosphorus adsorption filter 7 is for dephosphorization, and removes the organic pollution of residual in sewage;
Described artificial swamp 8 and described ecological pond 9 are for removing the organic pollution of remnants, nitrogen phosphorus compound and microorganism in sewage.
In the present embodiment, described ammonia nitrogen aeration and biological adsorption filter 4 is also connected with described sewage denitrification pond 6, centre have can the valve A of folding, having in the middle of described ammonia nitrogen aeration and biological adsorption filter 4 and described sewage backflow pond 5 can the valve B of folding.
In the present embodiment, the filler in described PACT pond 3 is activated carbon and red mud molecular sieve, and the thickness of filler is the filtering velocity in 2m, PACT pond 3 is 6m/h.
The filler of described ammonia nitrogen aeration and biological adsorption filter 4 is artificial zeolite, the particle diameter of described artificial zeolite is 2mm, the thickness of filler is 1.5m, and the filtering velocity of ammonia nitrogen aeration and biological adsorption filter 4 is 4m/h, and the mode of intermittent aeration taked by ammonia nitrogen aeration and biological adsorption filter 4.
The synthetic filler that ferrosilicon magnalium content is higher selected by the filler of described deep type phosphorus adsorption filter 4, and the thickness of described filler is at 5m, and the filtering velocity of deep type phosphorus adsorption filter is 2m/h.
Described artificial swamp 8 and ecological pond 9 are as compound sewage advanced treatment process, it is possible to carry out concrete design and combination according to practical situation. Wherein, hydraulic load is determined according to engineering practice.
Temperature in described WAR reactor 2 is 226 DEG C, and pressure is 6Mpa, and the time of staying is 1h.
The charcoal mud concentration of described WAR reactor 2 > 9%, suspended solid amount must not lower than 9%, to provide WAR reactor 2 stable sludge quantity.
Described PACT pond 3, WAR reactor 2, heat exchanger 10 outer wall use heat-insulation layer insulation, reduce thermal loss.
After described WAR reactor 2, heat exchanger 10 run a period of time, dust technology is adopted to clean the fouling of inwall.
The aerator in described PACT pond 3 adopts nanometer aeration machine, and air inlet is O2, strengthen local cavitation effect by nanometer aeration and produce.
Embodiment 2
Shown in Fig. 1, the batch-type absorption aerating filter of the present embodiment and the coupling device of artificial swamp-ecological pond, comprising: concentration basin 1, WAR reactor 2, heat exchanger 10, PACT pond 3, ammonia nitrogen aeration and biological adsorption filter 4, sewage backflow pond 5, sewage denitrification pond 6, deep type phosphorus adsorption filter 7, artificial swamp 8 and ecological pond 9; Wherein, described concentration basin 1 connects described WAR reactor 2, described WAR reactor 2 connects described heat exchanger 10, described heat exchanger 10 connects described PACT pond 3, described PACT pond 3 connects described concentration basin 1 and described ammonia nitrogen aeration and biological adsorption filter 4 respectively, described ammonia nitrogen aeration and biological adsorption filter 4 connects described sewage backflow pond 5, sewage denitrification pond 6 and described deep type phosphorus adsorption filter 7 respectively, described deep type phosphorus adsorption filter 7 connects described artificial swamp 8, and described artificial swamp 8 connects described ecological pond 9;
Described concentration basin 1 is for making the excess sludge concentrating and precipitating produced in described PACT pond 3;
Described WAR reactor 2 is for making the described excess sludge wet air regeneration of concentrating and precipitating, and the residue after emission treatment;
The mud that activated carbon adheres to, for the charging and discharging heat exchange of described WAR reactor 2, is oxidized to inorganic matter by described heat exchanger 10, again returns to reuse in described PACT pond 3 by the activated carbon having recovered activity;
Mineralized nitrogen, for the organic pollution in sewage is changed into carbon dioxide and water, is become nitrate nitrogen, and makes heavy metal ion solidify precipitation by described PACT pond 3;
Described ammonia nitrogen aeration and biological adsorption filter 4 is used for adsorbing ammonia nitrogen, the sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond 5, and is nitrate nitrogen by the ammonium oxidation adsorbed;
Described sewage backflow pond 5 is used for storing sewage, and sewage passes into described sewage denitrification pond 6;
Described deep type phosphorus adsorption filter 7 is for dephosphorization, and removes the organic pollution of residual in sewage;
Described artificial swamp 8 and described ecological pond 9 are for removing the organic pollution of remnants, nitrogen phosphorus compound and microorganism in sewage.
In the present embodiment, described ammonia nitrogen aeration and biological adsorption filter 4 is also connected with described sewage denitrification pond 6, centre have can the valve A of folding, having in the middle of described ammonia nitrogen aeration and biological adsorption filter 4 and described sewage backflow pond 5 can the valve B of folding.
In the present embodiment, the filler in described PACT pond 3 is activated carbon and red mud molecular sieve, and the thickness of filler is the filtering velocity in 3m, PACT pond 3 is 8m/h.
The filler of described ammonia nitrogen aeration and biological adsorption filter 4 is artificial zeolite, the particle diameter of described artificial zeolite is 4mm, the thickness of filler is 2.5m, and the filtering velocity of ammonia nitrogen aeration and biological adsorption filter 4 is 8m/h, and the mode of intermittent aeration taked by ammonia nitrogen aeration and biological adsorption filter 4.
The synthetic filler that ferrosilicon magnalium content is higher selected by the filler of described deep type phosphorus adsorption filter 4, and the thickness of described filler is at 6m, and the filtering velocity of deep type phosphorus adsorption filter is 3m/h.
Described artificial swamp 8 and ecological pond 9 are as compound sewage advanced treatment process, it is possible to carry out concrete design and combination according to practical situation. Wherein, hydraulic load is determined according to engineering practice.
Temperature in described WAR reactor 2 is 246 DEG C, and pressure is 10Mpa, and the time of staying is 2h.
The charcoal mud concentration of described WAR reactor 2 > 9%, suspended solid amount must not lower than 9%, to provide WAR reactor 2 stable sludge quantity.
Described PACT pond 3, WAR reactor 2, heat exchanger 10 outer wall use heat-insulation layer insulation, reduce thermal loss.
After described WAR reactor 2, heat exchanger 10 run a period of time, dust technology is adopted to clean the fouling of inwall.
The aerator in described PACT pond 3 adopts nanometer aeration machine, and air inlet is O2, strengthen local cavitation effect by nanometer aeration and produce.
Embodiment 3
Device described in embodiment 1 is adopted to carry out sewage disposal.
Sewage takes the mode that batch-type is intake, and flooding time is spaced apart 12h, and sewage enters PACT pond 3, utilizes the adsorption of powder activated carbon in PACT pond 3 and the biodegradation of biochemical sludge, dirt organic pollutants is changed into CO2And H2O, mineralized nitrogen becomes nitrate nitrogen, and heavy metal ion solidifies precipitation under the effect of red mud molecular sieve, purifies sewage; The supernatant in PACT pond 3 imports to ammonia nitrogen aeration and biological adsorption filter 4, natural zeolite on the adsorbed filter tank of ammonia nitrogen or (NH after artificial zeolite's absorption3-N clearance is up to 99%), valve A closes, and valve B opens, and sewage is flowed into sewage backflow pond 5 and stores. Ammonia nitrogen aeration adsorption filter 4 is added nitrobacteria simultaneously, and carry out aeration aerating 6h, then stop aeration. The ammonia nitrogen being adsorbed on filler in the process is oxidized to NO in the presence of nitrifier3-N, the absorbability of filler recovers again. Then being closed by valve B, valve A opens, and is stored in the sewage submersible sewage pump input sewage denitrification pond 6 in sewage backflow pond 5, adds denitrifying bacterium, NO simultaneously3-N carries out denitrification with the Organic substance in sewage under the effect of denitrifying bacterium, and the control of reflux ratio of sewage is between 1:3.5-1:4.7. after 6 hours, sewage is input to deep type phosphorus adsorption filter 7, phosphorus is removed at this, the Organic substance of part residual is removed at deep type phosphorus adsorption filter 7 simultaneously, this section of water outlet entrance artificial swamp 8 and ecological pond 9 carry out advanced treating, in the specific implementation can according to project occupation of land, investment situation and local economy social circumstance adopt vertical current constructed wetland, cross-current compound wetland, the kinds of processes such as aerobic ponds and chinampa ecological pond are combined, and adopt limestone, gravel and Fu Luoli kieselguhr are as the filler of artificial swamp, hydraulic load is determined according to engineering practice. a small amount of contaminant remaining in sewage is retained by filler, microbial transformation and aquatic animals and plants absorb and fully removed, artificial swamp-the ecology pond systems not only has environmental landscape benefit simultaneously, it is also possible to form combinational environment economic system by livestock culture.
The excess sludge produced in PACT pond 3 is through concentration basin 1 concentrating and precipitating, pump in WAR reactor 2, wet air regeneration is carried out in WAR reactor 2, by the heat exchanger 10 charging and discharging heat exchange to WAR reactor 2, the mud that activated carbon adheres to is oxidized to inorganic matter, and activated carbon is not destroyed, the activated carbon having recovered activity returns again to reuse in PACT pond 3, and the residue after WAR reactor 2 process directly discharges.
Influent concentration COD200-500mg/L, the NH of sewage3-N30-100mg/L, TN40-120mg/LTP5-30mg/L, water outlet COD < 30mg/L, the NH of system3-N < 1.5mg/L, TN < 1.5mg/L, TP < 0.05mg/L, the sewage completing deep purifying can directly discharge.
Through measuring and calculating, comparing traditional activated sludge process and process waste water, the COD in sewage is removed by denitrification, the NH in sewage3-N, by nitrated removal, considerably reduces energy consumption, stable effluent quality, can reach one-level A, and operating cost is only the 1/3 of traditional activated sludge process, has fabulous application prospect.
Particular embodiments described above; the purpose of the present invention, technical scheme and beneficial effect have been further described; it it should be understood that; the foregoing is only specific embodiments of the invention; it is not limited to the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

Claims (10)

1. the coupling device of a batch-type absorption aerating filter and artificial swamp-ecological pond, it is characterized in that, comprising: concentration basin, WAR reactor, heat exchanger, PACT pond, ammonia nitrogen aeration and biological adsorption filter, sewage backflow pond, sewage denitrification pond, deep type phosphorus adsorption filter, artificial swamp and ecological pond; Wherein, described concentration basin connects described WAR reactor, described WAR reactor connects described heat exchanger, described heat exchanger connects described PACT pond, described PACT pond connects described concentration basin and described ammonia nitrogen aeration and biological adsorption filter respectively, described ammonia nitrogen aeration and biological adsorption filter connects described sewage backflow pond, described sewage denitrification pond and described deep type phosphorus adsorption filter respectively, and described deep type phosphorus adsorption filter connects described artificial swamp, and described artificial swamp connects described ecological pond;
Described concentration basin is for making the excess sludge concentrating and precipitating produced in described PACT pond;
Described WAR reactor is for making the described excess sludge wet air regeneration of concentrating and precipitating, and the residue after emission treatment;
The mud that activated carbon adheres to, for the charging and discharging heat exchange of described WAR reactor, is oxidized to inorganic matter by described heat exchanger, again returns to reuse in described PACT pond by the activated carbon having recovered activity;
Mineralized nitrogen, for the organic pollution in sewage is changed into carbon dioxide and water, is become nitrate nitrogen, and makes heavy metal ion solidify precipitation by described PACT pond;
Described ammonia nitrogen aeration and biological adsorption filter is used for adsorbing ammonia nitrogen, the sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond, and is nitrate nitrogen by the ammonium oxidation adsorbed;
Described sewage backflow pond is used for storing sewage;
Described sewage denitrification pond is for making the organic pollution denitrification in nitrate nitrogen and sewage;
Described deep type phosphorus adsorption filter is used for dephosphorization, and removes the organic pollution of residual in sewage;
Described artificial swamp and described ecological pond are for removing the organic pollution of remnants, nitrogen phosphorus compound and microorganism in sewage.
2. the coupling device of batch-type according to claim 1 absorption aerating filter and artificial swamp-ecological pond, it is characterised in that the filler in described PACT pond is activated carbon and red mud molecular sieve, and the thickness of filler is the filtering velocity in 2-3m, PACT pond is 6-8m/h.
3. the coupling device of batch-type according to claim 1 absorption aerating filter and artificial swamp-ecological pond, it is characterized in that, the filler of described ammonia nitrogen aeration and biological adsorption filter is artificial zeolite or natural zeolite, the particle diameter of described artificial zeolite or natural zeolite is 2-4mm, the thickness of filler is 1.5-2.5m, the filtering velocity of ammonia nitrogen aeration and biological adsorption filter is 4-8m/h, and the mode of intermittent aeration taked by ammonia nitrogen aeration and biological adsorption filter.
4. the coupling device of batch-type according to claim 1 absorption aerating filter and artificial swamp-ecological pond, it is characterized in that, the filler of described deep type phosphorus adsorption filter is the synthetic filler that ferrosilicon magnalium content is higher, the thickness of filler is 5-6m, and the filtering velocity of deep type phosphorus adsorption filter is 2-3m/h.
5. the coupling device of batch-type according to claim 1 absorption aerating filter and artificial swamp-ecological pond, it is characterised in that the temperature in described WAR reactor is 226��246 DEG C, and pressure is 6��10Mpa, and the time of staying is 1��2h; The charcoal mud concentration of described WAR reactor > 9%, suspended solid amount must not lower than 9%.
6. the coupling device of batch-type according to claim 1 absorption aerating filter and artificial swamp-ecological pond, it is characterised in that described PACT pond, WAR reactor, heat exchanger outer wall use heat-insulation layer insulation, reduce thermal loss.
7. the coupling device of batch-type according to claim 1 absorption aerating filter and artificial swamp-ecological pond, it is characterised in that after described WAR reactor, heat exchanger run a period of time, adopts dust technology to clean the fouling of inwall; The aerator in described PACT pond adopts nanometer aeration machine, and air inlet is O2, strengthen local cavitation effect by nanometer aeration and produce.
8. the batch-type described in any one of claim 1��7 adsorbs the application in sewage disposal of the coupling device of aerating filter and artificial swamp-ecological pond.
9. the batch-type that a kind utilizes described in any one of claim 1��7 adsorbs the method that the coupling device of aerating filter and artificial swamp-ecological pond carries out sewage disposal, it is characterised in that comprise the steps:
(1) sewage is passed into described PACT pond, dirt organic pollutants is changed into carbon dioxide and water, mineralized nitrogen is become nitrate nitrogen, and makes heavy metal ion solidify precipitation;
(2) sewage processed through step (1) is passed into described ammonia nitrogen aeration and biological adsorption filter to adsorb ammonia nitrogen from described PACT pond, sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond, and is nitrate nitrogen by the ammonium oxidation adsorbed;
(3) sewage is passed into described sewage denitrification pond from described sewage backflow pond, the organic pollution in nitrate nitrogen and sewage is carried out denitrification;
(4) sewage processed through step (3) is passed into described deep type phosphorus adsorption filter with dephosphorization from described sewage denitrification pond, and remove the residual organic contaminants in sewage;
(5) sewage is passed sequentially through artificial swamp and ecological pond from described deep type phosphorus adsorption filter, to remove remaining organic pollution in sewage, nitrogen phosphorus compound and microorganism.
10. method according to claim 9, it is characterised in that it also comprises the steps:
(6) excess sludge produced in described PACT pond passes into described concentration basin and carries out concentrating and precipitating;
(7) the described excess sludge of concentrating and precipitating passes into described WAR reactor and carries out wet air regeneration;
(8) the described excess sludge of wet air regeneration passes into described heat exchanger, the charging and discharging of described WAR reactor are carried out heat exchange, the mud that activated carbon adheres to is oxidized to inorganic matter, again return to described PACT pond is reused by the activated carbon having recovered activity, the residue after direct emission treatment.
CN201610082097.4A 2016-02-05 2016-02-05 Adsorptive aeration filter tank, artificial wetland and ecological pond coupling device and application thereof Pending CN105621808A (en)

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CN110963640A (en) * 2019-11-19 2020-04-07 华北水利水电大学 Ecological water filtering pond for water ecological restoration
CN112811734A (en) * 2021-01-14 2021-05-18 山东大学 Biological-ecological coupling sewage treatment device and method

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CN110963640A (en) * 2019-11-19 2020-04-07 华北水利水电大学 Ecological water filtering pond for water ecological restoration
CN112811734A (en) * 2021-01-14 2021-05-18 山东大学 Biological-ecological coupling sewage treatment device and method

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