CN100429164C - Method of treating domestic sewage dispersively and its reactor - Google Patents
Method of treating domestic sewage dispersively and its reactor Download PDFInfo
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- CN100429164C CN100429164C CNB2006101663962A CN200610166396A CN100429164C CN 100429164 C CN100429164 C CN 100429164C CN B2006101663962 A CNB2006101663962 A CN B2006101663962A CN 200610166396 A CN200610166396 A CN 200610166396A CN 100429164 C CN100429164 C CN 100429164C
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- 239000010865 sewage Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000000945 filler Substances 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 3
- 230000001954 sterilising effect Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 31
- 238000012856 packing Methods 0.000 claims description 31
- 238000012545 processing Methods 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000003203 everyday effect Effects 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 2
- 238000010130 dispersion processing Methods 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000010802 sludge Substances 0.000 abstract description 13
- 239000004575 stone Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000005253 cladding Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
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- 239000010959 steel Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
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- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
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- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
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- 239000002131 composite material Substances 0.000 description 1
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- 238000011109 contamination Methods 0.000 description 1
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- 230000007062 hydrolysis Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Processing Of Solid Wastes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention is dispersively treating method and reactor for treating domestic sewage. The domestic sewage treating process includes the following steps: treating in septic tank to eliminate most of the solid residue, staying in the equalization pond for 16-24 hr, hoisting the sewage to the reactor with inert biological filler layers and broken stone layers to separate the filler layers, collecting gas with the central pipe inside the reactor and exhausting to upper air, and draining water from the bottom of the reactor or further sterilizing before being used as intermediate water. The present invention produces no sludge, and is simple, low in sewage treating cost and high in outflow water quality.
Description
One, technical field
The invention belongs to field of environment protection, particularly a kind of sanitary sewage disperses the method for processing.The present invention also provides a kind of reactor that this method adopted.
Two, background technology
Chinese Urbanization develops rapidly but water pollution control relatively lags behind, combined system drainage (old town) and a large amount of mushroom town lack perfect sewage collecting and treatment system, the unprocessed direct discharging water body of sewage is the one of the main reasons that causes China's water surrounding integral body to aggravate.Traditional solution need be built sewage intercepting sewer canal system system, will focus on behind the sewage collecting.Because construction investment is huge, the construction period long (especially sewage dam pipe duct engineering), and still have the unprocessed direct overflow row of part of contaminated water river rainy season, pollute.Sanitary sewage disperses treatment system to be arranged near the user, and sanitary sewage dispersion treatment on the spot utilizes original combined system pipe duct directly to discharge water body or reuse nearby after up to standard, does not therefore need to build the sewage pipe duct that dams, and can save and invest and the shortening construction period; Rainy season, sewage also can all obtain handling.COMPREHENSIVE CALCULATING, concentrate the unit sewage disposal investment of Sewage treatment systems will be higher than distributed processing system: to calculate according to Japan, when adopting the mode of popularizing water drain and concentrated sewage work to dispose of sewage, investment needs 1,200,000 yen (being roughly equal to 8.4 ten thousand yuan of Renminbi) per capita, about 20 years of construction period, i.e. effective improvement of water surrounding will just can take effect after 20 years; And when adopting the sewage distributed processing system, investment only needs ten thousand yen of 14-16 (being roughly equal to 1.1 ten thousand yuan of Renminbi) per capita, and the construction period only needs 1 month (to Liancheng, the present situation and the development of China scattering sewage treatment system, Beijing Inst. of Civil Engineering ﹠ Arch's journal, Vol.21 No.455-58, Dec.2005).But sanitary sewage disperses treatment system to realize effective reduction of gross contamination emission within a short period of time, improves the city quality of water environment.
Sanitary sewage disperses treatment process Anaerobic Microbiological Treatment Technology to be arranged (as the technology of hydrolysis upflow sludge bed reactor HUSB and upflow anaerobic sludge blanket reactor UASB combination; Anaerobic composite bed reactor A H; Anaerobic membrane bioreactor etc.), aerobe treatment technology (in the majority with bio membrane process, biomembrane process commonly used has technologies such as biological filter, bio-contact oxidation, biological fluidized bed, BAF), natural purification system (as land percolation, oxidation pond, artificial swamp etc.).System generally adopts the integrated small-scale sewage refining plant of plant produced, glass reinforced plastic or the steel plate materialses of adopting are made more, buried structure is (as the Gappei-shori purification tank of Japan, the sanitary sewage anaerobic processing device of exploitation such as the BioTrap of Norway and Biovac refining plant and China Zhu Genhua etc.), BOD and tp removal rate＞90%, the clearance of total nitrogen was about for 50% (omnidirectional's spring, Yang Zhifeng, Tang Qian, sanitary sewage disperses the application present situation of treatment technology, China's water supply and drainage, Vol.21 No.424-26 Apr 2005).
Existing sanitary sewage disperses treatment technology because from concentrating sewage disposal technology to develop the not fine yet solution of the collection of excess sludge and the difficult problem of disposal; Because adopt activated sludge process and buried structure, operational management complexity and maintenance of the equipment be difficulty relatively, influences the long-term stability operation of treatment system easily; Because sewage quantity is less, the cost that causes processing is than the centralized processing system height in addition.
Three, summary of the invention
At the problems referred to above that existing sanitary sewage disperses treatment technology to exist, the present invention has developed the method that a kind of sanitary sewage disperses processing.The present invention also provides the reactor that a kind of this method adopted.Adopt this art breading sanitary sewage not produce excess sludge; Reactor is the ground type structures, can realize unmanned, control automatically, and operational management and maintenance of the equipment are convenient; Cost of sewage disposal is lower than traditional activated sludge process.
The technical scheme that realizes the object of the invention is:
A kind of sanitary sewage disperses the method for processing, it is characterized in that may further comprise the steps:
1) sanitary sewage is at first removed most solid residues through septic tank, enters equalizing tank by drainage pipeline again, stops 16-24 hour in equalizing tank, and wherein equalizing tank is underground type structure commonly used;
2) oettIed sewage in the equalizing tank is promoted to ground reactor, be provided with multilayer inertia biologic packing material in this reactor, separate with rubble between each packing layer, gas collect by the pipe core that is positioned at reactor and by blower fan suction or natural wind-drawing effect to high altitude discharge, pipe core and shell of reactor make the metalling inner air flow in the perforate of rubble interval, separate with seepy material between rubble and the filler; The perforated pipe water distribution is adopted in water inlet, and water outlet is collected by metalling and entered other one deck inertia biologic packing material layer by the needs of technical process, is finally discharged by reactor bottom;
3) handle the back final outflow water and both can utilize original drainage pipeline discharging, also can be after sterilization as in water reuse nearby, Fig. 1 is seen in its technical process.
Above-mentioned steps 2) main component of inertia biologic packing material is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm in.
The preparation of inertia biologic packing material: at first will in the landfill yard that closes more than 8 years, rubbish be exploited out, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.
The thickness of every layer of filler is 400-1000mm in the reactor, and the number of plies is the 3-6 layer.The present invention adopts the intermittent operation mode, can adjust flooding time and fall to doing the time according to different water quality characteristicses, can be used for handling all biodegradable organic sewages.High strength domestic sewage (average water-quality COD for the discharge of sub-district septic tank
CrBe 320mg/L, NH
3-N is 120mg/L, and TP is 9mg/L), be one-period every day, and flooding time 4-8 hour, the time of doing that falls was 16-20 hour, and the water inlet surface load is 0.4-1m
3/ (m
2D).
A kind of in the method that sanitary sewage disperse to be handled employed reactor, it comprises shell and is positioned at the water inlet pipe of cover top portion and the rising pipe of bottom, it is characterized in that: in the shell at interval be provided with multilayer inertia biologic packing material layer, separate with rubble between each packing layer, be provided with the pipe core that extends the top from outer casing bottom in the enclosure, pipe core and shell of reactor make the metalling inner air flow in the perforate of rubble interval; Separate with seepy material between rubble and the filler; The perforated pipe water distribution is adopted in water inlet, and water outlet is collected by metalling.
Constructing of reactor: as shown in Figure 2, it utilizes plastics or glass reinforced plastic or steel or Steel Concrete as cladding, makes the reactor of inertia biologic packing material layered arrangement.Reactor can be designed to circular or square, and the diameter or the length of side can be determined according to water yield size; It is multilayered structure (3,5,7 is inertia biologic packing material layer among Fig. 2), and every layer of depth of packing can change between 400-1000mm as required, and the number of plies determines that as required be generally the 3-6 layer, total height changes between 2100-3900mm; Separate (4,6,8 is metalling among Fig. 2) with rubble between layer and the layer, so that discharge gaseous product and provide required oxygen for biological respinse.To high altitude discharge gas, determined by reactor diameter and air quantity size by the pipe core specification by blower fan 10 suctions or natural wind-drawing effect for the pipe core 2 that is positioned at the reactor symmetry centre; Pipe core and shell of reactor make the metalling inner air flow in the perforate of rubble interval; Separate with seepy material between rubble and the filler, prevent that the fine particle of filler from stopping up rising pipe or metalling; Water inlet pipe 1 adopts the perforated pipe water distribution, and water outlet enters other one deck inertia biologic packing material layer by the metalling collection or discharges from water shoot 9.
The present invention compares with existing sewage dispersion treatment technology, and its advantage is:
1. do not produce excess sludge
The present invention adopts biological activity strong, the high humic rubbish of organic content is as the chief component of inertia biologic packing material, in conjunction with the intermittent operation mode, make newly-increased microorganism stop falling to doing in the period and being dissolved of water into by endogenous respiration and humification process, therefore do not produce excess sludge, can save a large amount of sludge treatment and dispose investment and processing costs.
2. technology constitutes simply, and operational management is convenient
The present invention does not need the blast aeration of conventional activated sludge process, adopts blower fan exhausting or natural wind-drawing effect oxygen supply, has saved air blast and aerator; Owing to do not produce excess sludge thereby saved secondary sedimentation basins; Can unmanned, control makes operational management more simple and convenient automatically.
3. adopt the ground type structures, maintenance of the equipment is convenient
Owing to adopt the ground type structures, all devices is convenient to monitoring and is safeguarded.Traditional sanitary sewage disperses treatment process to adopt buried structures usually, thereby Chang Yinwei subsurface equipment fault is difficult to keep in repair the long-term stability operation of the system of influence.
4. cost of sewage disposal is low
The employing present device is less, and power consumption is also few, and operational management is easy, so cost of sewage disposal is low.The cost of sewage disposal of conventional activated sludge process is 0.8 yuan/ton, and processing cost of the present invention can be reduced to 0.3 yuan/ton.
5. effluent quality is good
Operate according to processing condition and processing parameter that the present invention provides in the technical scheme, handle the back stable effluent quality, can reach " integrated wastewater discharge standard " (GB 8978-1996) primary standard is SS＜20mg/L, BOD
5＜20mg/L, COD
Cr＜60mg/L, NH
3-N＜15mg/L is better than traditional sanitary sewage and disperses treatment process.
Four, description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is the structural representation of reactor among the present invention.
Five, embodiment
The present invention is described in further detail below in conjunction with embodiment:.
Embodiment 1:
(1) preparation of inertia biologic packing material: the main component of inertia biologic packing material is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.
(2) construct reactor: utilize the DN200 plastics tubing as cladding, make the reactor of inertia biologic packing material layered arrangement.Every layer of depth of packing is 400mm, and totally 6 layers, total height is 3600mm; Separate with rubble between layer and the layer, reach the purpose that the required oxygen of biological respinse was discharged and provided to gaseous product, gas is collected by outwards discharging of blower fan suction by the pipe core that is positioned at the reactor symmetry centre; Separate with seepy material between rubble and the filler, prevent that the fine particle of filler from stopping up rising pipe or metalling; The perforated pipe water distribution is adopted in water inlet, and water outlet is collected by metalling and discharged.Sanitary sewage enters the i.e. six layers of series operation of each layer successively.
(3) technical process: sanitary sewage is collected by the septic tank outlet, again by the water distributing pipe of water pump lifting to reactor, handles the back final outflow water and is discharged by metalling collection back.
(4) processing condition and processing parameter: adopt the intermittent operation mode, to sanitary sewage (the average water-quality COD of sub-district septic tank discharge
CrBe 216mg/L, NH
3-N is 88.3mg/L) handle.Envrionment temperature is 23.5 ℃, and be one-period every day, flooding time 4 hours, and the time of doing that falls is 20 hours, the water inlet surface load is 0.4m
3/ (m
2D).
The present embodiment testing data is as follows: water outlet COD is 15.62mg/L, and the COD clearance is 92.8%; Water outlet NH
3-N is 0.32mg/L, and clearance is 99.6%; SS＜20mg/L; BOD can't check.
Embodiment 2:
(1) preparation of inertia biologic packing material: the main component of inertia biologic packing material is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.
(2) construct reactor: utilize the DN200 plastics tubing as cladding, make the reactor of inertia biologic packing material layered arrangement.Every layer of depth of packing is 500mm, and totally 4 layers, total height is 2900mm; Separate with rubble between layer and the layer, reach the purpose that the required oxygen of biological respinse was discharged and provided to gaseous product, gas is collected by outwards discharging of blower fan suction by the pipe core that is positioned at the reactor symmetry centre; Separate with seepy material between rubble and the filler, prevent that the fine particle of filler from stopping up rising pipe or metalling; The perforated pipe water distribution is adopted in water inlet, and water outlet is collected by metalling and discharged.Sanitary sewage enters the i.e. four layers of series operation of each layer successively.
(3) technical process: sanitary sewage is collected by the septic tank outlet, again by the water distributing pipe of water pump lifting to reactor, handles the back final outflow water and is discharged by metalling collection back.
(4) processing condition and processing parameter: adopt the intermittent operation mode, to sanitary sewage (the average water-quality COD of sub-district septic tank discharge
CrBe 324.3mg/L, NH
3-N is 120.3mg/L) handle.Envrionment temperature is 31.5 ℃, and be one-period every day, flooding time 6 hours, and the time of doing that falls is 18 hours, the water inlet surface load is 0.6m
3/ (m
2D).
The present embodiment testing data is as follows: water outlet COD is 22.30mg/L, and the COD clearance is 93.1%; Water outlet NH
3-N is 10.42mg/L, and clearance is 91.3%; SS＜20mg/L; BOD can't check.
Embodiment 3:
(1) preparation of inertia biologic packing material: the main component of inertia biologic packing material is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm.At first in the landfill yard of enough time that closes, rubbish be exploited out when filler prepares, utilize the trommel screen in 20mm aperture to make the humic rubbish of required particle diameter then.
(2) construct reactor: utilize the DN200 plastics tubing as cladding, make the reactor of inertia biologic packing material layered arrangement.Every layer of depth of packing is 1000mm, and totally 3 layers, total height is 3900mm; Separate with rubble between layer and the layer, reach the purpose that the required oxygen of biological respinse was discharged and provided to gaseous product, gas is collected by outwards discharging of blower fan suction by the pipe core that is positioned at the reactor symmetry centre; Separate with seepy material between rubble and the filler, prevent that the fine particle of filler from stopping up rising pipe or metalling; The perforated pipe water distribution is adopted in water inlet, and water outlet is collected by metalling and discharged.Sanitary sewage enters the i.e. three layers of series operation of each layer successively.
(3) technical process: sanitary sewage is collected by the septic tank outlet, again by the water distributing pipe of water pump lifting to reactor, handles the back final outflow water and is discharged by metalling collection back.
(4) processing condition and processing parameter: adopt the intermittent operation mode, to sanitary sewage (the average water-quality COD of sub-district septic tank discharge
CrBe 320.1mg/L, NH
3-N is 110.3mg/L) handle.Envrionment temperature is 32 ℃, and be one-period every day, flooding time 8 hours, and the time of doing that falls is 16 hours, the water inlet surface load is 1.0m
3/ (m
2D).
The present embodiment testing data is as follows: water outlet COD is 14.48mg/L, and the COD clearance is 95.5%; Water outlet NH
3-N is 9.32mg/L, and clearance is 91.6%; SS＜20mg/L; BOD can't check.
Claims (8)
1, a kind of sanitary sewage disperses the method for processing, it is characterized in that may further comprise the steps:
1) sanitary sewage is at first removed most solid residues through septic tank, enters equalizing tank by drainage pipeline again, stops 16-24 hour in equalizing tank;
2) oettIed sewage in the equalizing tank is promoted to ground reactor, be provided with multilayer inertia biologic packing material in this reactor, separate with rubble between each packing layer, gas collect by the pipe core that is positioned at reactor and by blower fan suction or natural wind-drawing effect to high altitude discharge, pipe core and shell of reactor make the metalling inner air flow in the perforate of rubble interval, separate with seepy material between rubble and the filler; The perforated pipe water distribution is adopted in water inlet, and water outlet is collected by metalling and entered other one deck inertia biologic packing material layer by the needs of technical process, is finally discharged by reactor bottom;
3) handling the back water outlet can directly discharge, also can water reuse nearby in the conduct after sterilization.
2, sanitary sewage according to claim 1 disperses the method handled, it is characterized in that: step 2) in the main component of inertia biologic packing material be that household refuse landfill sites closes particle diameter more than 8 years less than the humify rubbish of 20mm.
3, sanitary sewage according to claim 1 and 2 disperses the method handled, it is characterized in that: step 2) thickness of every layer of filler is 400-1000mm in the reactor, the number of plies is the 3-6 layer.
4, sanitary sewage according to claim 1 and 2 disperses the method handled, it is characterized in that: step 2) in reaction process adopt the intermittent operation mode, can adjust flooding time and fall to doing the time according to different water quality characteristicses.
5, sanitary sewage according to claim 4 disperses the method for processing, it is characterized in that: for the high strength domestic sewage that the sub-district septic tank is discharged, be a processing cycle every day, flooding time 4-8 hour, time of doing that falls is 20-16 hour, and the water inlet surface load is 0.4-1m
3/ (m
2D).
6, employed reactor in a kind of method of sanitary sewage dispersion processing, it comprises shell and is positioned at the water inlet pipe of cover top portion and the rising pipe of bottom, it is characterized in that: in the shell at interval be provided with multilayer inertia biologic packing material layer, separate with rubble between each packing layer, be provided with the pipe core that extends the top from outer casing bottom in the enclosure, pipe core and shell of reactor make the metalling inner air flow in the perforate of rubble interval; Separate with seepy material between rubble and the filler; The perforated pipe water distribution is adopted in water inlet, and water outlet is collected by metalling.
7, employed reactor in the method for sanitary sewage dispersion processing according to claim 6 is characterized in that: the main component of inertia biologic packing material is the humify rubbish of the particle diameter of household refuse landfill sites closing more than 8 years less than 20mm.
8, according to employed reactor in the method for claim 6 or 7 described sanitary sewages dispersion processing, it is characterized in that: the thickness of every layer of filler is 400-1000mm in the reactor, and the number of plies is the 3-6 layer.
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| CN101948219B (en) * | 2010-09-09 | 2012-10-03 | 桂林理工大学 | Low-consumption biological treatment method of rural sewage |
| CN102260026B (en) * | 2011-06-29 | 2013-02-13 | 无锡强工机械工业有限公司 | Life miscellaneous wastewater biochemical treatment device |
| CN106006945A (en) * | 2016-08-09 | 2016-10-12 | 湖南省煜城环保科技有限公司 | Parasitic filler biofilter for domestic sewage treatment |
| CN108033580A (en) * | 2018-01-23 | 2018-05-15 | 南京大学 | A kind of modularization rural household's life decentralized wastewater treatment equipment and application method |
| CN110451662A (en) * | 2019-09-12 | 2019-11-15 | 哈尔滨工业大学 | A kind of blast cap driving aerobic reaction sewage-treatment plant and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769211A (en) * | 2004-11-04 | 2006-05-10 | 中国科学院生态环境研究中心 | Integrative bioreactor for treating refuse leachate |
| CN1843981A (en) * | 2005-04-07 | 2006-10-11 | 同济大学 | Integrated process for treating sewage by suspended bio-carrier |
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