CN101863585A - Physicochemical treatment and artificial wetland combined treatment system for sewage treatment of residential area - Google Patents
Physicochemical treatment and artificial wetland combined treatment system for sewage treatment of residential area Download PDFInfo
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- CN101863585A CN101863585A CN201010158919A CN201010158919A CN101863585A CN 101863585 A CN101863585 A CN 101863585A CN 201010158919 A CN201010158919 A CN 201010158919A CN 201010158919 A CN201010158919 A CN 201010158919A CN 101863585 A CN101863585 A CN 101863585A
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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
Abstract
The invention relates to a physicochemical treatment and artificial wetland combined treatment system for sewage treatment of a residential area. The system is provided with a physicochemical treatment device and an artificial wetland treatment device which form a combined sewage treatment system, wherein an inlet for the sewage of the residential area is formed in front of the physicochemical treatment device; the outlet water of the physicochemical treatment device is connected with the artificial wetland treatment device; the physicochemical treatment is mainly used for pre-treatment, and the artificial wetland is mainly used for fine treatment so as to reach the landscape water standard (GB/T18921-2002); and the treatment capability of the artificial wetland can be brought into full play by adjusting the physicochemical treatment, so that the optimal combination of the physicochemical treatment and the physicochemical ecological combined regulation and control of the artificial wetland is realized. The combined technology of the system brings the advantages of the artificial wetland technology into full play, reduces the operating cost of the physicochemical treatment as much as possible, has high stability for the treatment efficiency of the sewage pollutants of the residential area, has small influence on the water quality, has simple equipment and low operating cost and is practical and feasible technology for the treatment and recycling of the sewage of the residential area.
Description
Technical field
The invention belongs to technical field of sewage, be specifically related to a kind of " materialization processing+artificial swamp " combination process and handle community life sewage, handle back water quality and reach " landscape water standard " (GB/T18921-2002).
Background technology
Along with the increase of Chinese economic development and population, Process of Urbanization is constantly quickened, and scale constantly enlarges, and it is more and more higher to be used for the cost that water drain pipe network that sewage focuses on lays.In this case, in newly-built sub-district, set up the scattering sewage treatment device and be not only an important means that solves the sanitary sewage disposal problem as early as possible, also help the reuse on the spot for the treatment of water.
At present the technology that water handling reclamation is commonly used in the sub-district mainly contains following a few class: 1. coagulation, clarification, filtration method; 2. direct filtration process; 3. little flocculence; 4. contact oxidation method; 5. biological rapid filter method; 6. membrane separation technique etc.These technology ubiquity costs and the more high shortcoming of working cost, versatility is relatively poor, has limited application, and some technology is because the influence of its removal effect causes its application limited in addition.
Activated sludge process and other deformation technique in addition, the technology such as oxidation ditch, SBR, AB method, A/O method, A/A/O method that comprise had application in community wastewater is handled, and their treatment effect is good, but needs handle mud.
As seen, more than these methods separately deficiency is all arranged, all not too be fit to processing and reuse at community wastewater.
Summary of the invention
The present invention is directed to the water treatment common technology exists in the sub-district shortcoming and deficiency, and present situation such as urban water consumption sharp increase, a kind of materialization processing+artificial swamp composite processing system of handling at community wastewater is proposed, realize the ecological combined regulating optimum combination of materialization by the load coupling, community wastewater is carried out effective stable treated and is used as the view reuse water, not only can give full play to the processing advantage of artificial wetland process, also can reduce simultaneously the working cost that materialization is handled as far as possible, make its treatment effect be subjected to water quality impact little, system is simple, and working cost is low.
The technical scheme of the materialization processing+artificial swamp composite processing system that the present invention proposes is as follows:
Described composite processing system is made up of apparatus for physical Chemical treating and artificial swamp treatment unit;
Described apparatus for physical Chemical treating adopts Coagulatory settle treatment method, is made up of successively dosing unit, short mix unit, machinery flocculation unit and precipitation unit to connect to form by pipeline.Wherein the dosing unit mainly is the filling coagulating agent, adopts directly to add.The short mix unit adopts a mixing pit, in establish stirrer, rotating speed is 260～300rhnin, former water enters mixing pit, coagulating agent adds the top that point is positioned at mixing pit, with former water thorough mixing, enters machinery flocculation unit from the bottom by pipeline in mixing pit.Machinery flocculation unit is the mechanical stirring flocculation, is divided into three flocculation basins, establishes stirrer in the flocculation basin, by stirrer water is circulated in flocculation basin, and with former water thorough mixing and by three flocculation basins, sewage enters the post precipitation unit behind coagulation.Precipitation unit adopts rectangular sedimentation tank, and the form of effluent adopting overflow weir is established shore pipe below settling tank.
The natural purification system that described artificial swamp (Constructed wetlands) device is the artificial-strengthening built for the simulating nature wet land system.It utilizes physics, chemistry and biological triple synergies in the system, realizes efficient purification to sewage by filtration, absorption, coprecipitated, ion-exchange, plant absorbing and microbiological degradation.Described artificial swamp adopts the lateral subsurface flow wetland bed, and lateral subsurface flow wetland bed and the natural reaeration district downward by multistage gradient form; Be provided with parallel staggered division plate in each lateral subsurface flow wetland bed, separated by spaces in the bed is become the current raceway groove of S shape, filling rubble or ceramics filling (depth of packing 0.45-0.65m) in raceway groove, and plantation waterplant.
The load matching relationship of this composite processing system by forming through efficiency optimization can be realized the ecological combined regulating optimum combination of materialization of materialization processing+artificial swamp.
The optimum condition coupling of described system is as follows: short mix unit HRT=2～3min, PAC=22～26mg/L, stirring velocity is 100～140r/min, machinery flocculation unit HRT=3～5min, PAM=0.07～0.08mg/L, stirring velocity is 25～35r/min; The artificial swamp operating mode: summer T 〉=15 ℃, water outlet is satisfied " urban sewage reutilization city miscellaneous water water quality " (GB/T18920-2002) and " urban sewage reutilization water for scenic environment use water quality " (GB/T18921-2002) time simultaneously, and the preferable load of artificial swamp waterpower is 20.5～21.5cm/d; Winter T＜15 ℃, when the artificial swamp hydraulic load was 13.5～14.5cm/d, water outlet can be satisfied the preceding paragraph index, total nitrogen can not reach latter's standard, when the artificial swamp hydraulic load was 9.5～10.5cm/d, water outlet can be satisfied above two standards simultaneously.
The working process of the composite processing system that the present invention proposes is as follows:
The first step: community wastewater is by materialization treatment process section, and water-quality guideline such as TP, SS, TN, COD obtain certain removal.
Second step: the pre-treatment water outlet is carried out precision processing through artificial swamp Ecological Disposal technology again, further removes every indexs such as TP, SS, TN, COD, to reach view reuse water standard, realizes the ecological combined regulating optimum combination of materialization.
Advantage of the present invention is as follows:
The present invention is applicable to community wastewater processing and reuse, and this composite processing system is given full play to the advantage of artificial wetland process, has reduced the materialization processing costs simultaneously as far as possible.Because this combination process is subjected to water quality impact little, equipment is simple, and working cost is low, is a practical technology at community wastewater processing and reuse.
Description of drawings
Fig. 1 is the apparatus for physical Chemical treating synoptic diagram of native system;
---dosing unit 12---short mix unit among the figure: 11
13---machinery flocculation unit 14---precipitation unit
15---stirrer 16---shore pipe
17---support
Fig. 2 is the two dimensional structure synoptic diagram of the artificial stream wetland device of native system;
Fig. 3 is the A-A diagrammatic cross-section of the artificial stream wetland device of native system;
Among the figure:
21---lateral subsurface flow wetland bed 22---natural reaeration district
23---division plate 24---current raceway groove
25---rubble or ceramics filling 26---waterplant (reed)
Embodiment
This composite processing system comprises apparatus for physical Chemical treating and artificial swamp treatment unit two portions.
Apparatus for physical Chemical treating is referring to Fig. 1: it is connected to form by pipeline successively by dosing unit 11, short mix unit 12, machinery flocculation unit 13 and precipitation unit 14.
From dosing unit 11 mainly is the filling coagulating agent, adopts directly to add, and coagulating agent adds the mixing pit top that point is positioned at short mix unit 12.
Described precipitation unit 14 adopts rectangular sedimentation tank, and the form of overflow weir is adopted in water outlet 16, establishes shore pipe 17 below settling tank.
The structure of artificial swamp treatment unit is in conjunction with Fig. 2 and Fig. 3: lateral subsurface flow wetland bed 21 and the natural reaeration district 22 downward by multistage gradient form; Be provided with parallel staggered division plate 23 in each lateral subsurface flow wetland bed, separated by spaces in the bed is become the current raceway groove 24 of S shape, filling rubble or ceramics filling 25 (depth of packing 0.45-0.65m) in raceway groove, and plantation waterplant 26, utilization rate of tank volume is improved in slough in like this can the basically eliminate wetland; Upper level wetland bed with link to each other by the natural reaeration district between next stage is wetland bed.The natural reaeration district is the thin water layer reoxygenation ditch of a level, current form the thin water layer of turbulent fluctuation that thickness is 3～10mm in ditch, with the contact area of increased water flow and air, oxygen has been broken the limitation of traditional subsurface flow wetland system oxygen transmission capacity to the effect of mass transmitting of sewage in the acceleration air.Ditch long 5～8m in natural reaeration district can bring up to the dissolution of contaminated water oxygen concn about 3mg/L from 0mg/L.Under the effect of natural reaeration district and waterplant oxygen supply, whole wetland is in the oxygen of the holding concurrently oxygen condition of becoming reconciled, and can effectively improve the microbial biomass in filling surface and root district, improves biological action efficient greatly.
The working process of aforesaid combination technology processing system is as follows:
The first step: community wastewater is by materialization treatment process section, and water-quality guideline such as TP, SS, TN, COD obtain certain removal.
Second step: the pre-treatment water outlet is carried out precision processing through artificial swamp Ecological Disposal technology again, further removes every indexs such as TP, SS, TN, COD, to reach view reuse water standard, realizes the ecological combined regulating optimum combination of materialization.
Claims (3)
1. materialization processing+artificial swamp composite processing system of handling at community wastewater, it is characterized in that: described system has an apparatus for physical Chemical treating and an artificial swamp treatment unit, and both form a knockdown Sewage treatment systems; Before the water-in of community wastewater was located at apparatus for physical Chemical treating, the water outlet of apparatus for physical Chemical treating connect the artificial swamp treatment unit; Described materialization is handled and is mainly carried out pre-treatment, artificial swamp mainly carries out precision processing to reach " landscape water standard " (GB/T18921-2002), handle by regulating materialization, give full play to the artificial swamp processing power, realize the ecological combined regulating optimum combination of materialization of materialization processing+artificial swamp;
Described apparatus for physical Chemical treating is a kind of coagulating sedimentation device, and it is connected to form by pipeline successively by dosing unit, short mix unit, machinery flocculation unit and precipitation unit;
Described artificial swamp adopts the lateral subsurface flow wetland bed, and lateral subsurface flow wetland bed and the natural reaeration district downward by multistage gradient form; Be provided with parallel staggered division plate in each lateral subsurface flow wetland bed, separated by spaces in the bed is become the current raceway groove of S shape, filling rubble or ceramics filling in raceway groove, depth of packing 0.45-0.65m, and plantation waterplant;
The operating mode matching relationship of described system is as follows:
Short mix unit HRT=2～3min, PAC=22～26mg/L, stirring velocity is 100～140r/min; Machinery flocculation unit HRT=3～5min, PAM=0.07～0.08mg/L, stirring velocity is 25～35r/min.The artificial swamp operating mode: summer T 〉=15 ℃, when water outlet was satisfied " urban sewage reutilization city miscellaneous water water quality " GB/T18920-2002 and " urban sewage reutilization water for scenic environment use water quality " GB/T18921-2002 simultaneously, the preferable load of artificial swamp waterpower was 20.5～21.5cm/d; Winter T＜15 ℃, the artificial swamp hydraulic load is 9.5～11.5cm/d, water outlet can be satisfied above two standards simultaneously.
2. materialization processing+artificial swamp composite processing system according to claim 1 is characterized in that:
Described dosing unit is to short mix unit filling coagulating agent, adopts directly to add;
Described short mix unit adopts a mixing pit, establishes stirrer in the pond, and rotating speed is 260～300r/min, former water enters mixing pit, coagulating agent adds the top that point is positioned at mixing pit, with former water thorough mixing, enters machinery flocculation unit from the bottom by pipeline in mixing pit;
Described machinery flocculation unit adopts the mechanical stirring flocculation, is divided into three flocculation basins, establishes stirrer in the pond, by stirrer water is circulated in flocculation basin, and with former water thorough mixing and by three flocculation basins, sewage enters the post precipitation unit behind coagulation;
Described precipitation unit adopts rectangular sedimentation tank, and the form of effluent adopting overflow weir is established shore pipe below settling tank.
3. materialization processing+artificial swamp composite processing system according to claim 1 is characterized in that, described coagulating agent adopts inorganic coagulant and the combination of synthetic organic polymer coargulator to add;
Described inorganic coagulant and synthetic organic polymer coargulator are respectively Tai-Ace S 150, poly-iron, poly-aluminium, PAM.
Priority Applications (1)
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| CN2010101589195A CN101863585B (en) | 2010-04-29 | 2010-04-29 | Physicochemical treatment and artificial wetland combined treatment system for sewage treatment of residential area |
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| CN2010101589195A CN101863585B (en) | 2010-04-29 | 2010-04-29 | Physicochemical treatment and artificial wetland combined treatment system for sewage treatment of residential area |
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| CN101863585A true CN101863585A (en) | 2010-10-20 |
| CN101863585B CN101863585B (en) | 2012-03-28 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161556A (en) * | 2011-06-02 | 2011-08-24 | 重庆大学 | Sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment |
| CN103011490A (en) * | 2011-09-23 | 2013-04-03 | 四川环能德美科技股份有限公司 | Technology for distributed treatment on domestic sewage from small rural towns |
| CN105130125A (en) * | 2015-09-10 | 2015-12-09 | 天津泰达新水源科技开发有限公司 | Flocculation reaction pool of constructed wetlands |
| CN105523681A (en) * | 2014-09-28 | 2016-04-27 | 宝山钢铁股份有限公司 | Cold-rolled reverse osmosis concentrated salt water purification treatment method |
| CN110002684A (en) * | 2019-04-26 | 2019-07-12 | 深圳市环境科学研究院 | A kind of artificial wet land treating system and processing method |
| CN110526409A (en) * | 2019-09-09 | 2019-12-03 | 上海环境绿色生态修复科技有限公司 | A kind of vertical multi-stage constructed wetland device |
| CN111747620A (en) * | 2020-08-13 | 2020-10-09 | 吉林省海建环境设计院有限公司 | System for treating surface water by combining artificial wetland and magnetic coagulation |
| CN112679047A (en) * | 2020-12-30 | 2021-04-20 | 盐城工学院 | Micro-polluted raw water purification system and method |
| CN114873830A (en) * | 2021-02-05 | 2022-08-09 | 北京中科润金环保工程股份有限公司 | Distributed sewage treatment reactor for villages and towns and sewage treatment method thereof |
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| EP0823887B1 (en) * | 1995-05-02 | 2002-03-20 | Ulrich Braun | Method and device for a combined treatment of domestic sewage and domestic biodegradable garbage |
| CN1772659A (en) * | 2005-10-09 | 2006-05-17 | 徐祖信 | Combined process of reinforced biochemical flocculation and artificial wet land treatment of sewage |
| CN101585637A (en) * | 2008-05-20 | 2009-11-25 | 海斯博特（北京）科技有限公司 | High-concentration sewage treatment system for artificial wetland primarily |
| CN101659498A (en) * | 2009-07-30 | 2010-03-03 | 四川省运辉环保工程咨询有限公司 | Compound artificial wetland treatment process of domestic sewage in villages and towns in rural areas |
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2010
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Patent Citations (4)
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| EP0823887B1 (en) * | 1995-05-02 | 2002-03-20 | Ulrich Braun | Method and device for a combined treatment of domestic sewage and domestic biodegradable garbage |
| CN1772659A (en) * | 2005-10-09 | 2006-05-17 | 徐祖信 | Combined process of reinforced biochemical flocculation and artificial wet land treatment of sewage |
| CN101585637A (en) * | 2008-05-20 | 2009-11-25 | 海斯博特（北京）科技有限公司 | High-concentration sewage treatment system for artificial wetland primarily |
| CN101659498A (en) * | 2009-07-30 | 2010-03-03 | 四川省运辉环保工程咨询有限公司 | Compound artificial wetland treatment process of domestic sewage in villages and towns in rural areas |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161556A (en) * | 2011-06-02 | 2011-08-24 | 重庆大学 | Sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment |
| CN103011490A (en) * | 2011-09-23 | 2013-04-03 | 四川环能德美科技股份有限公司 | Technology for distributed treatment on domestic sewage from small rural towns |
| CN105523681A (en) * | 2014-09-28 | 2016-04-27 | 宝山钢铁股份有限公司 | Cold-rolled reverse osmosis concentrated salt water purification treatment method |
| CN105523681B (en) * | 2014-09-28 | 2018-10-02 | 宝山钢铁股份有限公司 | A kind of purifying treatment method of the reverse osmosis concentrated brine of cold rolling |
| CN105130125A (en) * | 2015-09-10 | 2015-12-09 | 天津泰达新水源科技开发有限公司 | Flocculation reaction pool of constructed wetlands |
| CN110002684A (en) * | 2019-04-26 | 2019-07-12 | 深圳市环境科学研究院 | A kind of artificial wet land treating system and processing method |
| CN110526409A (en) * | 2019-09-09 | 2019-12-03 | 上海环境绿色生态修复科技有限公司 | A kind of vertical multi-stage constructed wetland device |
| CN111747620A (en) * | 2020-08-13 | 2020-10-09 | 吉林省海建环境设计院有限公司 | System for treating surface water by combining artificial wetland and magnetic coagulation |
| CN112679047A (en) * | 2020-12-30 | 2021-04-20 | 盐城工学院 | Micro-polluted raw water purification system and method |
| CN114873830A (en) * | 2021-02-05 | 2022-08-09 | 北京中科润金环保工程股份有限公司 | Distributed sewage treatment reactor for villages and towns and sewage treatment method thereof |
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| CN101863585B (en) | 2012-03-28 |
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