CN105668928A - Coupling device of sequencing-batch adsorption aerating filter and underground soil infiltration device and application of coupling device - Google Patents
Coupling device of sequencing-batch adsorption aerating filter and underground soil infiltration device and application of coupling device Download PDFInfo
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- CN105668928A CN105668928A CN201610082201.XA CN201610082201A CN105668928A CN 105668928 A CN105668928 A CN 105668928A CN 201610082201 A CN201610082201 A CN 201610082201A CN 105668928 A CN105668928 A CN 105668928A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- 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
- C02F3/28—Anaerobic digestion processes
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- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a coupling device of a sequencing-batch adsorption aerating filter and an underground soil infiltration device and application of the coupling device in sewage treatment. The device comprises a concentration tank, a WAR reactor, a heat exchanger, a PACT tank, an ammonia nitrogen aeration biological adsorption filter, a sewage backflow tank, a sewage denitrifying tank, a deep phosphorus adsorption filter and the underground soil infiltration device, wherein 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 ammonia nitrogen aeration biological adsorption filter, the ammonia nitrogen aeration biological adsorption filter is connected with the sewage backflow tank, the sewage denitrifying tank and the deep phosphorus adsorption filter, and the deep phosphorus adsorption filter is connected with the underground soil infiltration device. The coupling device can remove contaminants in sewage, the energy consumption and cost in the treatment process can be greatly reduced, and the resource regeneration process can be better completed.
Description
Technical field
The present invention relates to a kind of sequence batch (absorption the be coupled device of aerating filter with underground soil filtration, it is specifically related to the device of a kind of advanced treatment of wastewater collecting physical adsorption, biomembrance process and underground soil filtration combination. The present invention also relates to the application of this device in sewage disposal, namely utilizes the method that said apparatus is disposed of sewage.
Background technology
The main technique that activated sludge process processes as municipal wastewater, since 19th century were born, has been widely adopted all over the world, the A that its main technique comprises oxidation ditch, A/O, AB and develops based on this2The improving technique such as/O, SBR, CASS. Above-mentioned technique within for some time for tremendous contribution is made in sewage disposal; but fast development that is strict all the more along with various countries' water surrounding regulation and scientific and technological level; these method energy consumption height; operational management work is comparatively complicated; the shortcoming exposed day by day that its treatment process is relatively single; therefore in order to meet being strict with and Energy situation severe all the more of new period field of environment protection, development environment close friend is all started both at home and abroad, novel sewage treatment process that energy consumption is less.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of novel waste disposal plant and the application in sewage disposal thereof, namely utilize this device to carry out the method for sewage disposal. Specifically, the present invention provides a kind of sequence batch (absorption the be coupled device of aerating filter with underground soil filtration, more specifically, it relates to the device of a kind of advanced treatment of wastewater collecting physical adsorption, biomembrance process and underground soil filtration combination, this device can remove the pollution substance in sewage, reducing running cost, the generation of containment sludge odor, possesses environmental landscape benefit simultaneously.
For achieving the above object, a first aspect of the present invention provides a kind of sequence batch (absorption the be coupled device of aerating filter with underground soil filtration, comprising: concentration basin, WAR (WetAirRegeneration, wet type air regenerates) reactor, interchanger, PACT (PowderedActivatedCarbonTreatment, Powdered Activated Carbon process) pond, ammonia nitrogen aeration and biological absorption filter tank, sewage backflow pond, sewage denitrification pond, dark type phosphorus absorption filter tank and underground soil filtration;Wherein, described concentration basin connects described WAR reactor, described WAR reactor connects described interchanger, described interchanger connects described PACT pond, described PACT pond connects described concentration basin and described ammonia nitrogen aeration and biological absorption filter tank respectively, described ammonia nitrogen aeration and biological absorption filter tank connects described sewage backflow pond, described sewage denitrification pond and described dark type phosphorus absorption filter tank respectively, and described dark type phosphorus absorption filter tank connects the soil filtration of described underground;
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;
Described interchanger is used for the charging and discharging heat exchange of described WAR reactor, and the mud that activated carbon adheres to is oxidized to inorganics, returns in described PACT pond again reuse having recovered active activated carbon;
Mineralized nitrogen, for the organic pollutant in sewage changes into carbonic acid gas and water, is become nitrate nitrogen by described PACT pond, and makes heavy metal ion solidification precipitation;
Described ammonia nitrogen aeration and biological absorption filter tank is used for adsorb 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 for storing sewage;
Described sewage denitrification pond is for making the organic pollutant denitrification in nitrate nitrogen and sewage;
Described dark type phosphorus absorption filter tank is used for dephosphorization, and removes the organic pollutant of residual in sewage;
The soil filtration of described underground is for removing organic pollutant remaining in sewage, nitrogen phosphorus compound and microorganism.
Preferably, the filler in described PACT pond is gac and red mud molecular sieve, and the filtering velocity that the thickness of filler is preferably 2-3m, PACT pond is preferably 6-8m/h.
Preferably, the filler in described ammonia nitrogen aeration and biological absorption filter tank 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 in ammonia nitrogen aeration and biological absorption filter tank is preferably 4-8m/h, and the mode of intermittent aeration is preferably taked in ammonia nitrogen aeration and biological absorption filter tank.
Preferably, the filler in described dark type phosphorus absorption filter tank adopts synthetic filler, it is preferred that the synthetic filler selecting ferrosilicon magnesium aluminium content higher, and the thickness of described filler is preferably at 5-6m, and the filtering velocity in dark type phosphorus absorption filter tank is preferably 2-3m/h.
Preferably, the soil filtration of described underground is as compound sewage advanced treatment process, it is possible to carry out concrete design and combination according to practical situation. The soil filtration of described underground preferably adopts Wingdale, gravel and Fu Luoli diatomite as filler. The soil filtration of described underground is the implication of this area routine. The soil filtration of described underground adopts original position soil diafiltration, the preferred 1.0-1.5m of the thickness of filtering layer, and hydraulic load is preferably 40-60cm/d, and arranges underground ventilation pipeline.
Preferably, the temperature in described WAR reactor is 226～246 DEG C, and pressure is 6～10Mpa, and the residence time is 1～2h.
Preferably, the charcoal mud concentration of WAR reactor > 9%, suspended solid amount must not lower than 9%, with the sludge quantity providing WAR reactor stable.
Preferably, the outer wall of described PACT pond, WAR reactor, interchanger uses thermal insulation layer insulation, reduces calorific loss.
Preferably, after described WAR reactor, interchanger run for some time, dust technology is adopted to clean the fouling of inwall.
Preferably, the aerating apparatus in described PACT pond adopts nanometer aeration machine, and air inlet is O2, produced by nanometer aeration strengthening local cavatition.
A second aspect of the present invention provides the application of device in sewage disposal that be coupled of above-mentioned sequence batch (absorption aerating filter and underground soil filtration.
A third aspect of the present invention provides a kind of method utilizing above-mentioned sequence batch (absorption aerating filter to carry out sewage disposal with the device that is coupled of underground soil filtration, comprises the steps:
(1) sewage is led to into described PACT pond, dirt organic pollutants is changed into carbonic acid gas and water, mineralized nitrogen is become nitrate nitrogen, and make heavy metal ion solidification precipitation;
(2) sewage processed through step (1) is led to from described PACT pond into described ammonia nitrogen aeration and biological absorption filter tank with adsorb ammonia nitrogen, sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond, and is nitrate nitrogen by the ammonium oxidation adsorbed;
(3) sewage is led to into described sewage denitrification pond from described sewage backflow pond, the organic pollutant in nitrate nitrogen and sewage is carried out denitrification;
(4) sewage processed through step (3) is led to from described sewage denitrification pond adsorb filter tank with dephosphorization into described dark type phosphorus, and remove and sewage remains organic pollutants;
(5) sewage is adsorbed filter tank by underground soil filtration from described dark type phosphorus, with remaining organic pollutant, nitrogen phosphorus compound and the microorganism removed in sewage.
In order to sewage can carry out the process of full blast continuously, making device continue to be in optimum Working, described method also comprises the step that coupling device carries out self-regeneration goodly, comprising:
(6) excess sludge produced in described PACT pond leads to and carries out concentrating and precipitating into described concentration basin;
(7) the described excess sludge of concentrating and precipitating leads to and carries out wet air regeneration into described WAR reactor;
(8) the described excess sludge of wet air regeneration leads to into described interchanger, the charging and discharging of described WAR reactor are carried out heat exchange, the mud that activated carbon adheres to is oxidized to inorganics, return having recovered active activated carbon again in described PACT pond and reuse, 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 COD and the bottleneck problem of ammonia nitrogen simultaneously, take the compound technology route that physical adsorption, biomembrance process and underground soil filtration technique combine, 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 running cost is only the 1/3 of traditional activated sludge process, has fabulous application prospect.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of the present invention.
[description of reference numerals]
1 concentration basin 2WAR reactor
Ammonia nitrogen aeration and biological absorption filter tank, 3PACT pond 4
5 sewage denitrification pond, sewage backflow ponds 6
7 dark type phosphorus absorption filter tank 8 underground soil filtrations
10 interchanger
A, B valve
Embodiment
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, sequence batch (absorption the be coupled device of aerating filter with underground soil filtration of the present invention, comprising: concentration basin 1, WAR reactor 2, interchanger 10, PACT pond 3, ammonia nitrogen aeration and biological absorption filter tank 4, sewage backflow pond 5, sewage denitrification pond 6, dark type phosphorus absorption filter tank 7 and underground soil filtration 8;Wherein, described concentration basin 1 connects described WAR reactor 2, described WAR reactor 2 connects described interchanger 10, described interchanger 10 connects described PACT pond 3, described PACT pond 3 connects described concentration basin 1 and described ammonia nitrogen aeration and biological absorption filter tank 4 respectively, described ammonia nitrogen aeration and biological absorption filter tank 4 connects described sewage backflow pond 5, sewage denitrification pond 6 and described dark type phosphorus absorption filter tank 7 respectively, and described dark type phosphorus absorption filter tank 7 connects described underground soil filtration 8;
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 inorganics by described interchanger 10, returns in described PACT pond 3 again reuse having recovered active activated carbon;
Mineralized nitrogen, for the organic pollutant in sewage changes into carbonic acid gas and water, is become nitrate nitrogen by described PACT pond 3, and makes heavy metal ion solidification precipitation;
Sewage after having adsorbed ammonia nitrogen, for adsorb ammonia nitrogen, is entered described sewage backflow pond 5, and is nitrate nitrogen by the ammonium oxidation adsorbed by described ammonia nitrogen aeration and biological absorption filter tank 4;
Described sewage backflow pond 5 is for storing sewage, and is led to by sewage into described sewage denitrification pond 6;
Described dark type phosphorus absorption filter tank 7 is for dephosphorization, and removes the organic pollutant of residual in sewage;
Described underground soil filtration 8 is for removing organic pollutant remaining in sewage, nitrogen phosphorus compound and microorganism.
In the present embodiment, described ammonia nitrogen aeration and biological absorption filter tank 4 is also connected with described sewage denitrification pond 6, centre have can the valve A of folding, described ammonia nitrogen aeration and biological absorption filter tank 4 and centre, described sewage backflow pond 5 have can the valve B of folding.
In the present embodiment, the filler in described PACT pond 3 is gac and red mud molecular sieve, and the thickness of filler is the filtering velocity in 2m, PACT pond 3 is 6m/h.
The filler in described ammonia nitrogen aeration and biological absorption filter tank 4 is artificial zeolite, the particle diameter of described artificial zeolite is 2mm, the thickness of filler is 1.5m, and the filtering velocity in ammonia nitrogen aeration and biological absorption filter tank 4 is 4m/h, and the mode of intermittent aeration is taked in ammonia nitrogen aeration and biological absorption filter tank 4.
The synthetic filler that the filler in described dark type phosphorus absorption filter tank 4 selects ferrosilicon magnesium aluminium content higher, the thickness of described filler is at 5m, and the filtering velocity in dark type phosphorus absorption filter tank is 2m/h.
Described underground soil filtration 8 is as compound sewage advanced treatment process, it is possible to carry out concrete design and combination according to practical situation. In the present embodiment, the thickness of its filtering layer is 1.0m, and hydraulic load is 40cm/d.
Temperature in described WAR reactor 2 is 226 DEG C, and pressure is 6Mpa, and the residence time is 1h.
The charcoal mud concentration of described WAR reactor 2 > 9%, suspended solid amount must not lower than 9%, with the sludge quantity providing WAR reactor 2 stable.
The outer wall of described PACT pond 3, WAR reactor 2, interchanger 10 uses thermal insulation layer insulation, reduces calorific loss.
After described WAR reactor 2, interchanger 10 run for some time, dust technology is adopted to clean the fouling of inwall.
The aerating apparatus in described PACT pond 3 adopts nanometer aeration machine, and air inlet is O2, produced by nanometer aeration strengthening local cavatition.
Embodiment 2
Also please refer to shown in Fig. 1, sequence batch (absorption the be coupled device of aerating filter with underground soil filtration of the present embodiment, comprising: concentration basin 1, WAR reactor 2, interchanger 10, PACT pond 3, ammonia nitrogen aeration and biological absorption filter tank 4, sewage backflow pond 5, sewage denitrification pond 6, dark type phosphorus absorption filter tank 7 and underground soil filtration 8;Wherein, described concentration basin 1 connects described WAR reactor 2, described WAR reactor 2 connects described interchanger 10, described interchanger 10 connects described PACT pond 3, described PACT pond 3 connects described concentration basin 1 and described ammonia nitrogen aeration and biological absorption filter tank 4 respectively, described ammonia nitrogen aeration and biological absorption filter tank 4 connects described sewage backflow pond 5, sewage denitrification pond 6 and described dark type phosphorus absorption filter tank 7 respectively, and described dark type phosphorus absorption filter tank 7 connects described underground soil filtration 8;
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 inorganics by described interchanger 10, returns in described PACT pond 3 again reuse having recovered active activated carbon;
Mineralized nitrogen, for the organic pollutant in sewage changes into carbonic acid gas and water, is become nitrate nitrogen by described PACT pond 3, and makes heavy metal ion solidification precipitation;
Sewage after having adsorbed ammonia nitrogen, for adsorb ammonia nitrogen, is entered described sewage backflow pond 5, and is nitrate nitrogen by the ammonium oxidation adsorbed by described ammonia nitrogen aeration and biological absorption filter tank 4;
Described sewage backflow pond 5 is for storing sewage, and is led to by sewage into described sewage denitrification pond 6;
Described dark type phosphorus absorption filter tank 7 is for dephosphorization, and removes the organic pollutant of residual in sewage;
Described underground soil filtration 8 is for removing organic pollutant remaining in sewage, nitrogen phosphorus compound and microorganism.
In the present embodiment, described ammonia nitrogen aeration and biological absorption filter tank 4 is also connected with described sewage denitrification pond 6, centre have can the valve A of folding, described ammonia nitrogen aeration and biological absorption filter tank 4 and centre, described sewage backflow pond 5 have can the valve B of folding.
In the present embodiment, the filler in described PACT pond 3 is gac and red mud molecular sieve, and the thickness of filler is the filtering velocity in 3m, PACT pond 3 is 8m/h.
The filler in described ammonia nitrogen aeration and biological absorption filter tank 4 is artificial zeolite, the particle diameter of described artificial zeolite is 4mm, the thickness of filler is 2.5m, and the filtering velocity in ammonia nitrogen aeration and biological absorption filter tank 4 is 8m/h, and the mode of intermittent aeration is taked in ammonia nitrogen aeration and biological absorption filter tank 4.
The synthetic filler that the filler in described dark type phosphorus absorption filter tank 4 selects ferrosilicon magnesium aluminium content higher, the thickness of described filler is at 6m, and the filtering velocity in dark type phosphorus absorption filter tank is 3m/h.
Described underground soil filtration 8 is as compound sewage advanced treatment process, it is possible to carry out concrete design and combination according to practical situation. In the present embodiment, the thickness of its filtering layer is 1.5m, and hydraulic load is 60cm/d.
Temperature in described WAR reactor 2 is 246 DEG C, and pressure is 10Mpa, and the residence time is 2h.
The charcoal mud concentration of described WAR reactor 2 > 9%, suspended solid amount must not lower than 9%, with the sludge quantity providing WAR reactor 2 stable.
The outer wall of described PACT pond 3, WAR reactor 2, interchanger 10 uses thermal insulation layer insulation, reduces calorific loss.
After described WAR reactor 2, interchanger 10 run for some time, dust technology is adopted to clean the fouling of inwall.
The aerating apparatus in described PACT pond 3 adopts nanometer aeration machine, and air inlet is O2, produced by nanometer aeration strengthening local cavatition.
Embodiment 3
Device described in embodiment 1 is adopted to carry out sewage disposal.
Sewage takes the mode that sequence batch (intakes, and flooding time is spaced apart 12h, and sewage enters PACT pond 3, utilizes the adsorption of the powder activated carbon in PACT pond 3 and the biological degradation 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 waste water; The supernatant liquor in PACT pond 3 imports to ammonia nitrogen aeration and biological absorption filter tank 4, and the natural zeolite that ammonia nitrogen is adsorbed on filter tank or artificial zeolite adsorb rear (NH3-N clearance can reach 99%), valve A closes, and valve B opens, and sewage is flowed into sewage backflow pond 5 and stores. Ammonia nitrogen aeration is adsorbed filter tank 4 simultaneously and add nitrobacteria, 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 adsorptive power of filler is recovered 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 bacteria, NO simultaneously3-N carries out denitrification with the organism in sewage under the effect of denitrifying bacteria, and the control of reflux ratio of sewage is between 1:3.5-1:4.7. Sewage was input to after 6 hours dark type phosphorus absorption filter tank 7, and phosphorus is removed at this, and the organism of part residual is removed in dark type phosphorus absorption filter tank 7 simultaneously, and this section of water outlet enters underground soil filtration 8 and carry out advanced treatment. Again in concrete enforcement, adopting Wingdale, gravel and Fu Luoli diatomite as the filler of underground soil filtration 8, hydraulic load is determined according to engineering practical situation. A small amount of contaminant remaining in sewage is retained by filler, microbial transformation and aquatic animals and plants absorb and fully removed.
The excess sludge produced in PACT pond 3 is through concentration basin 1 concentrating and precipitating, pump enters in WAR reactor 2, wet air regeneration is carried out in WAR reactor 2, by interchanger 10 to the charging and discharging heat exchange of WAR reactor 2, the mud that activated carbon adheres to is oxidized to inorganics, and activated carbon is not destroyed, the activated carbon having recovered active returns in PACT pond 3 again to be reused, and the residue after WAR reactor 2 process directly discharges.
The influent concentration COD200-500mg/L of sewage, NH3-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 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 running cost is only the 1/3 of traditional activated sludge process, has fabulous application prospect.
Above-described specific embodiment; the object of the present invention, technical scheme and useful 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; within the spirit and principles in the present invention all, any amendment of making, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. sequence batch (absorption the be coupled device of aerating filter with underground soil filtration, it is characterized in that, comprising: concentration basin, WAR reactor, interchanger, PACT pond, ammonia nitrogen aeration and biological absorption filter tank, sewage backflow pond, sewage denitrification pond, dark type phosphorus absorption filter tank and underground soil filtration;Wherein, described concentration basin connects described WAR reactor, described WAR reactor connects described interchanger, described interchanger connects described PACT pond, described PACT pond connects described concentration basin and described ammonia nitrogen aeration and biological absorption filter tank respectively, described ammonia nitrogen aeration and biological absorption filter tank connects described sewage backflow pond, described sewage denitrification pond and described dark type phosphorus absorption filter tank respectively, and described dark type phosphorus absorption filter tank connects the soil filtration of described underground;
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;
Described interchanger is used for the charging and discharging heat exchange of described WAR reactor, and the mud that activated carbon adheres to is oxidized to inorganics, returns in described PACT pond again reuse having recovered active activated carbon;
Mineralized nitrogen, for the organic pollutant in sewage changes into carbonic acid gas and water, is become nitrate nitrogen by described PACT pond, and makes heavy metal ion solidification precipitation;
Described ammonia nitrogen aeration and biological absorption filter tank is used for adsorb 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 for storing sewage;
Described sewage denitrification pond is for making the organic pollutant denitrification in nitrate nitrogen and sewage;
Described dark type phosphorus absorption filter tank is used for dephosphorization, and removes the organic pollutant of residual in sewage;
The soil filtration of described underground is for removing organic pollutant remaining in sewage, nitrogen phosphorus compound and microorganism.
2. sequence batch (according to claim 1 absorption the be coupled device of aerating filter with underground soil filtration, it is characterised in that, the filler in described PACT pond is gac and red mud molecular sieve, and the thickness of filler is the filtering velocity in 2-3m, PACT pond is 6-8m/h.
3. sequence batch (according to claim 1 absorption the be coupled device of aerating filter with underground soil filtration, it is characterized in that, the filler in described ammonia nitrogen aeration and biological absorption filter tank 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 in ammonia nitrogen aeration and biological absorption filter tank is 4-8m/h, and the mode of intermittent aeration is taked in ammonia nitrogen aeration and biological absorption filter tank.
4. sequence batch (according to claim 1 absorption the be coupled device of aerating filter with underground soil filtration, it is characterized in that, the filler in described dark type phosphorus absorption filter tank is the synthetic filler that ferrosilicon magnesium aluminium content is higher, and the thickness of filler is 5-6m, and the filtering velocity in dark type phosphorus absorption filter tank is 2-3m/h.
5. sequence batch (according to claim 1 absorption the be coupled device of aerating filter with underground soil filtration, it is characterised in that, the temperature in described WAR reactor is 226～246 DEG C, and pressure is 6～10Mpa, and the residence time is 1～2h; The charcoal mud concentration of described WAR reactor > 9%, suspended solid amount must not lower than 9%.
6. sequence batch (according to claim 1 absorption the be coupled device of aerating filter with underground soil filtration, it is characterised in that, the outer wall of described PACT pond, WAR reactor, interchanger uses thermal insulation layer insulation, reduces calorific loss.
7. sequence batch (according to claim 1 absorption the be coupled device of aerating filter with underground soil filtration, it is characterised in that, after described WAR reactor, interchanger run for some time, adopt dust technology to clean the fouling of inwall;The aerating apparatus in described PACT pond adopts nanometer aeration machine, and air inlet is O2, produced by nanometer aeration strengthening local cavatition.
8. the application of device in sewage disposal that be coupled of sequence batch (absorption aerating filter and underground soil filtration described in the arbitrary item of claim 1～7.
9. one kind utilizes the absorption aerating filter of the sequence batch (described in the arbitrary item of claim 1～7 to carry out the method for sewage disposal with the device that is coupled of underground soil filtration, it is characterised in that, comprise the steps:
(1) sewage is led to into described PACT pond, dirt organic pollutants is changed into carbonic acid gas and water, mineralized nitrogen is become nitrate nitrogen, and make heavy metal ion solidification precipitation;
(2) sewage processed through step (1) is led to from described PACT pond into described ammonia nitrogen aeration and biological absorption filter tank with adsorb ammonia nitrogen, sewage after having adsorbed ammonia nitrogen is entered described sewage backflow pond, and is nitrate nitrogen by the ammonium oxidation adsorbed;
(3) sewage is led to into described sewage denitrification pond from described sewage backflow pond, the organic pollutant in nitrate nitrogen and sewage is carried out denitrification;
(4) sewage processed through step (3) is led to from described sewage denitrification pond adsorb filter tank with dephosphorization into described dark type phosphorus, and remove and sewage remains organic pollutants;
(5) sewage is adsorbed filter tank by underground soil filtration from described dark type phosphorus, with remaining organic pollutant, nitrogen phosphorus compound and the microorganism removed in sewage.
10. method according to claim 9, it is characterised in that, it also comprises the steps:
(6) excess sludge produced in described PACT pond leads to and carries out concentrating and precipitating into described concentration basin;
(7) the described excess sludge of concentrating and precipitating leads to and carries out wet air regeneration into described WAR reactor;
(8) the described excess sludge of wet air regeneration leads to into described interchanger, the charging and discharging of described WAR reactor are carried out heat exchange, the mud that activated carbon adheres to is oxidized to inorganics, return having recovered active activated carbon again in described PACT pond and reuse, the residue after direct emission treatment.
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| CN104718022A (en) * | 2012-10-26 | 2015-06-17 | 西门子能量股份有限公司 | Reduced maintenance water treatment apparatus incorporating wet air regeneration |
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| CN104718022A (en) * | 2012-10-26 | 2015-06-17 | 西门子能量股份有限公司 | Reduced maintenance water treatment apparatus incorporating wet air regeneration |
| CN203474595U (en) * | 2013-09-06 | 2014-03-12 | 苏州市瑞华水处理工程有限公司 | Device for recycling domestic sewage in colleges and universities |
| CN204174040U (en) * | 2014-03-17 | 2015-02-25 | 上海净淼环境科技有限公司 | A kind of sequence batch (absorption aerating filter device |
| CN104150690A (en) * | 2014-07-25 | 2014-11-19 | 席北斗 | Disinfection sewage treatment integrated device and treatment method |
| CN104150697A (en) * | 2014-07-25 | 2014-11-19 | 中国环境科学研究院 | Three-level deep rapid purification device and method for heavy metals in underground water |
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Application publication date: 20160615 |