CN104150701A - Device and method for quickly treating sewage by utilizing multistage inflow wetland and composite rotating biological contactor - Google Patents
Device and method for quickly treating sewage by utilizing multistage inflow wetland and composite rotating biological contactor Download PDFInfo
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- CN104150701A CN104150701A CN201410359972.XA CN201410359972A CN104150701A CN 104150701 A CN104150701 A CN 104150701A CN 201410359972 A CN201410359972 A CN 201410359972A CN 104150701 A CN104150701 A CN 104150701A
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Abstract
The invention provides a device for quickly treating sewage by utilizing a multistage inflow wetland and a composite rotating biological contactor. The device mainly comprises a two-stage grillage machine, an unpowered bio-contact oxidation combined device, a multistage inflow vertical flow soil infiltration system and a sand filter. The invention also discloses a method for quickly treating sewage by utilizing the device. The device organically combines a biofilter with rotating biological contactors, simultaneously improves an artificial wetland system by adopting the multistage inflow design mode, provides sufficient carbon sources for biological treatment, promotes the biodegradation process in the system, improves the nitrogen and phosphorus removal effects inside the system and has organic matter and suspended solid removal rate as high as 100%.
Description
Technical field
The present invention relates to a kind of multistage water inlet wetland and compound bio rotating disk sewage quick treatment device.
The invention still further relates to the method for utilizing said apparatus rapid sewage treating.
Background technology
Along with the aggravation of shortage of water resources and water pollution problems, and sewage drainage standard is increasingly strict, and municipal effluent carries out the main task that denitrogenation dephosphorizing has become the municipal sewage plant of newly-built, enlarging and reconstruction before discharge.< < urban wastewater treatment firm pollutant emission standard (GB18918-2002) the > > of the up-to-date promulgation of China requires the content of the following last water outlet nitrogen of sewage work of building on January 1st, 2006, phosphorus to be respectively TP according to the grade of receiving water body and is less than 0.5mg/L, ammonia nitrogen is less than 5mg/L, total nitrogen is less than 15mg/L (one-level A standard), the TP of sewage work building before on December 31st, 2005 is less than 1mg/L, and other index request is the same.As can be seen here, no matter be the requirement that sewage treatment process is faced with severe advanced treatment of wastewater denitrogenation dephosphorizing.
Summary of the invention
The object of the present invention is to provide a kind of multistage water inlet wetland and compound bio rotating disk sewage quick treatment device.
Another object of the present invention is to provide a kind of method of utilizing said apparatus rapid sewage treating.
For achieving the above object, multistage water inlet wetland provided by the invention and compound bio rotating disk sewage quick treatment device, be mainly comprised of two sections of grid makers, unpowered biological catalytic oxidation combination unit, multistage water inlet vertical current Efficiency for Soil Aquifer Treatment and sand filtering device; Wherein:
Two sections of grid makers, are laid with wide-meshed screen and fine screen mesh in framework, two sections of screen clothes and level are 60 degree angles, and the sewage of processing through two sections of grid makers imports in unpowered biological catalytic oxidation combination unit by high-order water inlet pipe;
Unpowered biological catalytic oxidation combination unit is comprised of biological filter and blodisc, is covered with flow model stereo hollow filler at the bottom of the pond of biological filter, and the top of flow model stereo hollow filler is provided with many group blodiscs; By dividing plate, unpowered biological catalytic oxidation combination unit is divided into two portions, the below of dividing plate extends to the flow model stereo hollow filler top of bottom, biological filter; Blodisc is divided into the firstth district and Second Region by dividing plate, the blodisc periphery that is placed in the firstth district of high-order water inlet pipe below spreads all over tank, and the PVC sleeve pipe by a plurality of borings after water inlet catalytic oxidation and degraded is carried out to multistage water inlet overflow level water inlet vertical current Efficiency for Soil Aquifer Treatment at the most;
Multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is inner sealing anaerobic environment, is followed successively by surface soil layer, filtering layer and water guide layer from top to bottom; Surface soil layer is sand mixture, and filtering layer is non-woven fabrics, and water guide layer is filler; The sewage that multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is processed supernatant liquor after precipitation imports in sand filtering device;
The below of sand filtering device is storage area, and storage area top is sand filtration filler, in storage area and the bottom of sand filtration filler be laid with respectively nanometer aeration head.
Described multistage water inlet wetland and compound bio rotating disk sewage quick treatment device, wherein, in two sections of grid makers, wide-meshed screen filtering accuracy is 20mm, fine screen mesh filtering accuracy is 6mm.
Described multistage water inlet wetland and compound bio rotating disk sewage quick treatment device, wherein, the blodisc coaxial transmission of the blodisc in the firstth district and Second Region, and blodisc has the area of 20-60% to be immersed in biological filter.
Described multistage water inlet wetland and compound bio rotating disk sewage quick treatment device, wherein, the sand mixture in multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is that rubble, red mud molecular sieve and Fu Luoli diatomite mix.
Described multistage water inlet wetland and compound bio rotating disk sewage quick treatment device, wherein, plant the Spiked Loosestrife of well developed root system on the surface soil layer of multistage water inlet vertical current Efficiency for Soil Aquifer Treatment.
Described multistage water inlet wetland and compound bio rotating disk sewage quick treatment device, wherein, the sand filtration filler of sand filtering device is the mixture of modified manganese sand and natural zeolite molecular sieve, the particle diameter of sand filtration filler is 0.5-1.0mm.
Described multistage water inlet wetland and compound bio rotating disk sewage quick treatment device, wherein, two nanometer aeration heads in sand filtering device connect a nanometer aeration machine separately.
Described multistage water inlet wetland and compound bio rotating disk sewage quick treatment device, wherein, in sand filtering device, the nanometer aeration head air inlet of sand filtration filler below is O
2, the nanometer aeration head air inlet in storage area is O
3.
The method of utilizing above-mentioned multistage water inlet wetland and compound bio rotating disk sewage quick treatment device to carry out sewage disposal provided by the invention:
The sewage of feed-water end is tackled the solid granulates in liquid by thick, thin two sections of screen clothes under action of gravity, and removes continuously after the foreign material in fluid, by high-order water inlet pipe, imports in unpowered biological catalytic oxidation combination unit;
In unpowered biological catalytic oxidation combination unit, the blodisc periphery in the firstth district spreads all over tank, utilize high-order water inlet to impact tank, blodisc is constantly rotated, to carrying out preliminary catalytic oxidation, pollution substance is continuous mass transfer under current fluctuation, further degraded under the flow model stereo hollow filler anoxic condition effect of bottom, biological filter then, after the blodisc of Second Region is degraded once again, overflow is level water inlet vertical current Efficiency for Soil Aquifer Treatment at the most; In system, utilize the red mud molecular sieve of meta-alkalescence as filler, the small molecules acid producing with anaerobic part acidifying in absorption rapidly, regulates sewage potential of hydrogen, and environment plant preferably in device, microorganism are survived; Build the fixedly heavy metal in sewage of slight alkali environment simultaneously, prevent that it from leaching, utilize small organic molecule to supply with plant nutrient, absorption in growing process, absorb heavy metal and carry out heavy metal biological stabilization.
During blodisc work, blodisc top contacts with air, and in the molecular sieve of blodisc inside, ammonia nitrogen is oxidized to the stripping of nitre nitrogen, rotates into sewage inside, again adsorbs ammonia nitrogen, and in denitrification process, consumes organism in sewage, goes round and begins again and disposes of sewage; In blodisc rotation process, the mobility of its inner polyethylene ball, and polyethylene ball interior molecules sieves irregular collision, makes molecular sieve filling surface biological film come off and enter biological filter clashing under rubbing effect;
Supernatant liquor after the settlement of sewage of processing through multistage water inlet vertical current Efficiency for Soil Aquifer Treatment imports in sand filtering device, and the nanometer aeration head air inlet of the sand filtration filler of sand filtering device below is O
2, for clean sand filtration filler; Nanometer aeration head air inlet in storage area is O
3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, play strong oxidation.
In described method, the part effluent recycling of multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is to the water inlet of unpowered biological catalytic oxidation combination unit, and regulating water quality also stimulates microorganism growth process secretion secondary substance.
The present invention combines biological filter and two kinds of techniques of blodisc, use molecular sieve fast reducing influent load, for bio-contact oxidation degradation process provides good environment, along with the extension of time by molecular sieve internal contamination material sustained-release out, the stability that keeps reaction unit internal medium, maintain microorganism active, improve catalytic oxidation effect.Adopt multistage water intake mode design improved artificial wet land system, for biological treatment provides sufficient carbon source, biodegradation process in accelerating system, improves internal system Nitrogen/Phosphorus Removal simultaneously.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present invention.
Primary clustering nomenclature in accompanying drawing:
1 feed-water end; 2 two sections of grid makers; 3 wide-meshed screens; 4 fine screen mesh; 5 high-order water inlet pipes; 6 blodiscs; 7 dividing plates; 8 unpowered biological catalytic oxidation combination units; 9 steel axles; 10 plants (Spiked Loosestrife); 11 surface soil layers; 12 filtering layers; 13 water guide layers; 14 sand filtering devices; 15 sand filtration fillers; 16 nanometer aeration machines; 17 storage areas; 18 nanometer aeration heads; 19 flow model stereo hollow fillers; The multistage water inlet vertical current of A Efficiency for Soil Aquifer Treatment; B water distributor.
Embodiment
Refer to Fig. 1.Multistage water inlet wetland provided by the invention and compound bio rotating disk sewage quick treatment device method, it mainly comprises:
Two sections of grid makers 2, in framework, be laid with wide-meshed screen 3 (filtering accuracy is 20mm) and fine screen mesh 4 (filtering accuracy is 6mm), the laying of two sections of screen clothes is to present 60 degree angles with level, the sewage of feed-water end 1 passes through the solid granulates in thick, thin two sections of screen clothes, 3,4 interception liquid under action of gravity, and removes continuously the solid-liquid separating equipment of foreign material in fluid; The sewage of processing through two sections of grid makers 2 imports in unpowered biological catalytic oxidation combination unit 8 by topping-up pump and high-order water inlet pipe 5.
Unpowered biological catalytic oxidation combination unit 8 is comprised of biological filter and blodisc, utilize the dirty pollutant in water of its different specific aim associated treatment, at the bottom of the pond of biological filter, be covered with flow model stereo hollow filler 19, the top of flow model stereo hollow filler 19 is provided with many group blodiscs 6, for flow model stereo hollow filler 19 is played one's part to the full, use dividing plate 7 that unpowered biological catalytic oxidation combination unit 8 is divided into two portions, the below of dividing plate 7 extends to flow model stereo hollow filler 19 tops of bottom, biological filter.Blodisc 6 is also divided into the firstth district and Second Region thus, the blodisc coaxial transmission in Liang Ge district, and blodisc has the area of 20-60% to be immersed in biological filter.The blodisc periphery that is placed in the firstth district of high-order water inlet pipe 5 belows spreads all over tank, utilize high-order water inlet to impact tank, blodisc is constantly rotated, to carrying out preliminary catalytic oxidation, pollution substance is continuous mass transfer under current fluctuation, then further degraded under the flow model stereo hollow filler 19 anoxic condition effects of bottom, biological filter, then degrade once again through the blodisc 6 of Second Region, overflow is level water inlet vertical current Efficiency for Soil Aquifer Treatment A at the most.
Unpowered biological catalytic oxidation combination unit 8 utilizes water inlet gravitional force to be converted into the kinetic energy that blodisc 6 rotates, and makes blodisc 6 with the rotation of water yield size.Water inlet is uninterrupted, and blodisc rotates immediately, and water inlet stops, and blodisc stops operating.
Blodisc part is comprised of the some pie hollow iron cages that are fixed on a transverse axis.Pie hollow iron cage be by six iron plates of round iron plate welding as skeleton, skeleton one side is welded a circular web plate, two skeletons are arranged in parallel, between rely on web plate to bend to circular connection.Transverse axis and iron cage adopt hexagon to fix, to strengthen its coupling stiffness.The inner completely polyethylene ball of filling of iron cage, polyethylene ball inner hollow, spherome surface is covered with square opening, this structure is significant in the mass transfer process of oxygen, and be conducive to microbial film internal layer microorganism and directly from liquid phase, obtain matrix, polyethylene ball inside is filled with light flyash molecular sieve filling, compactedness is appropriate, to guarantee in blodisc rotation process, the mobility of its inner polyethylene ball, and polyethylene ball interior molecules sieves irregular collision, molecular sieve filling surface biological film is come off clashing under rubbing effect.
Unpowered biological catalytic oxidation combination unit of the present invention, that biological filter and two kinds of techniques of blodisc are combined, use molecular sieve fast reducing influent load, for bio-contact oxidation degradation process provides good environment, along with the extension of time, little by little by molecular sieve internal contamination material, little by little slowly-releasing is out, the stability that keeps unpowered biological catalytic oxidation combination unit internal medium, maintains microorganism active, improves catalytic oxidation effect.During blodisc work, blodisc top contacts with air, and in its interior molecules sieve, ammonia nitrogen is oxidized to the stripping of nitre nitrogen, rotates into sewage inside, again adsorbs ammonia nitrogen, and in denitrification process, consumes organism in sewage, goes round and begins again and disposes of sewage.
In multistage water inlet vertical current Efficiency for Soil Aquifer Treatment A, be inner sealing anaerobic environment, be followed successively by surface soil layer 11, filtering layer 12 and water guide layer 13 from top to bottom.Surface soil layer 11 is also into water layer, water distributor B adopts the PVC sleeve pipe of a plurality of borings to carry out multistage water inlet, surface soil layer 11 for the sand mixture of 1m be that rubble, red mud molecular sieve and Fu Luoli diatomite mix, volume mixture ratio is 2:3:0.5, and Fu Luoli diatomite is laid on top layer, for soil, filter and serike 10 (such as Spiked Loosestrife); Filtering layer 12 is the non-woven fabrics of thickness 30mm, prevents the movement of upper layer of soil, sandstone, causes the obstruction of water guide layer.The thick 50mm of water guide layer 13, its packing material size is 20mm-60mm, so that the derivation of sewage.The supernatant liquor of the sewage of processing through multistage water inlet vertical current Efficiency for Soil Aquifer Treatment A after precipitation process imports in sand filtering device 14, the part supernatant liquor of multistage water inlet vertical current Efficiency for Soil Aquifer Treatment A is back to the water inlet of unpowered biological catalytic oxidation combination unit 8, and regulating water quality also stimulates microorganism growth process secretion secondary substance.
The below of sand filtering device 14 is storage area 17,17 tops, storage area are sand filtration filler 15, sand filtration filler is the mixture of modified manganese sand and natural zeolite molecular sieve, volume mixture ratio is 1:8-1:2, packing material size is 0.5-1.0mm, is the multi-functional mixed fillers that integrates absorption, ion-exchange, coagulation and removal heavy metal.In storage area 17 and the bottom of sand filtration filler 15 be laid with respectively nanometer aeration head 18, and connect separately a nanometer aeration machine 16.The nanometer aeration head air inlet of sand filtration filler 15 belows is O
2, for clean filler; Air inlet in storage area 17 is O
3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, play strong oxidation.
According to one embodiment of present invention, the present invention for organism and suspended solids clearance up to 100%.
Claims (10)
1. multistage water inlet wetland and a compound bio rotating disk sewage quick treatment device, be mainly comprised of two sections of grid makers, unpowered biological catalytic oxidation combination unit, multistage water inlet vertical current Efficiency for Soil Aquifer Treatment and sand filtering device; Wherein:
Two sections of grid makers, are laid with wide-meshed screen and fine screen mesh in framework, two sections of screen clothes and level are 60 degree angles, and the sewage of processing through two sections of grid makers imports in unpowered biological catalytic oxidation combination unit by high-order water inlet pipe;
Unpowered biological catalytic oxidation combination unit is comprised of biological filter and blodisc, is covered with flow model stereo hollow filler at the bottom of the pond of biological filter, and the top of flow model stereo hollow filler is provided with many group blodiscs; By dividing plate, unpowered biological catalytic oxidation combination unit is divided into two portions, the below of dividing plate extends to the flow model stereo hollow filler top of bottom, biological filter; Blodisc is divided into the firstth district and Second Region by dividing plate, and blodisc is immersed in biological filter; The blodisc periphery that is placed in the firstth district of high-order water inlet pipe below spreads all over tank, and the PVC sleeve pipe by a plurality of borings after water inlet catalytic oxidation and degraded is carried out to multistage water inlet overflow level water inlet vertical current Efficiency for Soil Aquifer Treatment at the most; The blodisc coaxial transmission of the blodisc in the firstth district and Second Region;
Multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is inner sealing anaerobic environment, is followed successively by surface soil layer, filtering layer and water guide layer from top to bottom; Surface soil layer is sand mixture, and filtering layer is non-woven fabrics, and water guide layer is pebbles filler; The sewage that multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is processed supernatant liquor after precipitation imports in sand filtering device;
The below of sand filtering device is storage area, and storage area top is sand filtration filler, in storage area and the bottom of sand filtration filler be laid with respectively nanometer aeration head.
2. multistage water inlet wetland according to claim 1 and compound bio rotating disk sewage quick treatment device, wherein, in two sections of grid makers, wide-meshed screen filtering accuracy is 20mm, fine screen mesh filtering accuracy is 6mm.
3. multistage water inlet wetland according to claim 1 and compound bio rotating disk sewage quick treatment device, wherein, the 20-60% of blodisc area is immersed in biological filter.
4. multistage water inlet wetland according to claim 1 and compound bio rotating disk sewage quick treatment device, wherein, the sand mixture in multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is that rubble, red mud molecular sieve and Fu Luoli diatomite mix.
5. multistage water inlet wetland according to claim 1 and compound bio rotating disk sewage quick treatment device, wherein, plant the Spiked Loosestrife of well developed root system on the surface soil layer of multistage water inlet vertical current Efficiency for Soil Aquifer Treatment.
6. multistage water inlet wetland according to claim 1 and compound bio rotating disk sewage quick treatment device, wherein, the sand filtration filler of sand filtering device is the mixture of modified manganese sand and natural zeolite molecular sieve, the particle diameter of sand filtration filler is 0.5-1.0mm.
7. multistage water inlet wetland according to claim 1 and compound bio rotating disk sewage quick treatment device, wherein, two nanometer aeration heads in sand filtering device connect a nanometer aeration machine separately.
8. according to the multistage water inlet wetland described in claim 1 or 7 and compound bio rotating disk sewage quick treatment device, wherein, in sand filtering device, the nanometer aeration head air inlet of sand filtration filler below is O
2, the nanometer aeration head air inlet in storage area is O
3.
9. utilize the method that multistage water inlet wetland and compound bio rotating disk sewage quick treatment device carry out sewage disposal described in claim 1:
The sewage of feed-water end is tackled the solid granulates in liquid by thick, thin two sections of screen clothes under action of gravity, and removes continuously after the foreign material in fluid, by high-order water inlet pipe, imports in unpowered biological catalytic oxidation combination unit;
In unpowered biological catalytic oxidation combination unit, the blodisc periphery in the firstth district spreads all over tank, utilize high-order water inlet to impact tank, blodisc is constantly rotated, to carrying out preliminary catalytic oxidation, pollution substance is continuous mass transfer under current fluctuation, further degraded under the flow model stereo hollow filler anoxic condition effect of bottom, biological filter then, after the blodisc of Second Region is degraded once again, overflow is level water inlet vertical current Efficiency for Soil Aquifer Treatment at the most;
During blodisc work, blodisc top contacts with air, and in the molecular sieve of blodisc inside, ammonia nitrogen is oxidized to the stripping of nitre nitrogen, rotates into sewage inside, again adsorbs ammonia nitrogen, and in denitrification process, consumes organism in sewage, goes round and begins again and disposes of sewage; In blodisc rotation process, the mobility of its inner polyethylene ball, and polyethylene ball interior molecules sieves irregular collision, makes molecular sieve filling surface biological film come off and enter biological filter clashing under rubbing effect;
Supernatant liquor after the settlement of sewage of processing through multistage water inlet vertical current Efficiency for Soil Aquifer Treatment imports in sand filtering device, and the nanometer aeration head air inlet of the sand filtration filler of sand filtering device below is O
2, for clean sand filtration filler; Nanometer aeration head air inlet in storage area is O
3, by nanometer aeration, obtain in a large number hydroxyl radical free radical, play strong oxidation.
10. method according to claim 9, the part effluent recycling of multistage water inlet vertical current Efficiency for Soil Aquifer Treatment is to the water inlet of unpowered biological catalytic oxidation combination unit, and regulating water quality also stimulates microorganism growth process secretion secondary substance.
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Cited By (2)
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| CN110615575A (en) * | 2019-09-03 | 2019-12-27 | 生态环境部华南环境科学研究所 | Flood season agricultural area fruit and vegetable composite ecological system based on nitrogen and phosphorus reduction |
| CN113233604A (en) * | 2021-04-26 | 2021-08-10 | 重庆泓源渗滤取水科技有限公司 | Infiltration water intaking system |
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