CN1792886A - Tech. for treating water from city sewage treating plant by quartz sand using artificial wet land - Google Patents
Tech. for treating water from city sewage treating plant by quartz sand using artificial wet land Download PDFInfo
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- CN1792886A CN1792886A CNA2005101195949A CN200510119594A CN1792886A CN 1792886 A CN1792886 A CN 1792886A CN A2005101195949 A CNA2005101195949 A CN A2005101195949A CN 200510119594 A CN200510119594 A CN 200510119594A CN 1792886 A CN1792886 A CN 1792886A
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- plant
- quartz sand
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- wet land
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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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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A process for treating the reclaimed water discharged from city sewage treating plant by use of artificial wetland features that the vertically flowing artificial wetland is composed of the filler consisting of quartz sand, and the plant bed consisting of canna, elephant grass, calamus, etc.
Description
Technical field
The present invention relates to sewage treatment process, particularly the treating water from city sewage treating plant by quartz sand using artificial wet land technology.
Background technology
Because the shortage of water resources, both at home and abroad more and more widely to the research of sewage recycling process.The reusing sewage technology mainly contains coagulating sedimentation, advanced oxidation, disinfection by ultraviolet light, charcoal absorption and membrane filtration technique etc. at present, but because the use of coagulating agent in traditional coagulation sedimentation method cause secondary pollution easily, and treatment effect is general; And advanced oxidation, disinfection by ultraviolet light, charcoal absorption and membrane filtration technique etc. are higher owing to processing cost, and the running maintenance complexity, are difficult to be promoted the use of widely.
Summary of the invention
The purpose of this invention is to provide a kind of employing is main body filler and the artificial wet land treating system of planting preferred four kinds of wetland plants carry out advanced treatment to effluent of municipal sewage plant technology with quartz sand.
The present invention is achieved in that and sets up an artificial swamp pond, and there is a partition wall middle and upper part, wetland pond, and a water inlet pipe is arranged at the top, one side of partition wall, and a rising pipe is arranged at the other side top of partition wall.Filling filler in the pond, the filler fill order is: bottom filling particle diameter is that the pebbles of 40～80mm is crossed water layer thickness 10～30cm, is that particle diameter is the quartz sand filler of 4～8mm on it, and thickness is 50～80cm, the quartzy fine sand layer that particle diameter is 1～2mm is filled out in the shop, top, and thickness is 10～20cm.Plant above the quartzy fine sand layer plant is arranged, various plants bed based on Canna generalis Bailey, between mix with napier grass, calamus and hay grass and to take plantation, planting density be 38～40 strains/square metre, Canna generalis Bailey: napier grass: calamus: its planting proportion of hay grass is 4～8: 1～2: 4～8: 1～2; The root system of plant can be deeply to the pebbles layer.
Fluidised form adopts vertical compound flow constructed wetland, and to the water inlet of stream cell surface, current direction is flowed to bottom pebbles water conservancy diversion layer, and then flows into the upward flow unit down through the main body packing layer current by down, and current are discharged by its top.
The present invention has that treatment effect is good, processing efficiency is high, the investment working cost is low, convenient management, the shock resistance compound ability is strong, stable and have advantage such as aesthetic value, adopt the plant bed vertical combined-flow simulation artificial wet land treating system of Canna generalis Bailey that sewage disposal plant effluent is carried out advanced treatment, can remove pollutents such as nitrogen phosphorus effectively, thereby prevent the eutrophication of water body effectively, it is fully feasible that its water outlet is used for the view reuse.Reach " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard through main water-quality guideline such as ammonia nitrogen, total phosphorus, COD and BOD in the artificial swamp processing back water outlet.
Description of drawings
Fig. 1 simulates the constructed wetland device synoptic diagram for the present invention.
Fig. 2 simulates the treatment effect of artificial swamp to COD for the present invention.
Fig. 3 simulates the treatment effect of artificial swamp to ammonia nitrogen for the present invention.
Fig. 4 simulates the treatment effect of artificial swamp to total phosphorus for the present invention.
Fig. 5 simulates the treatment effect of artificial swamp to BOD for the present invention.
Mark among Fig. 1: 1. water inlet pipe, quartzy fine sand layer 2., 3. partition wall, 4. wetland plant, 5. rising pipe, 6. root system of plant, 7. wetland pond, 8. quartz sand filler, 9. pebbles filler.
Embodiment
Embodiment
As shown in Figure 1, artificial swamp pond (7), surface size is 1.0m * 0.5m, highly is 1.0m, and the filler porosity is 40%, and useful volume is 200L, and residence time 24h, hydraulic load are 0.4m
3/ (m
2D).There is a partition wall middle and upper part, wetland pond, and wetland pond (7) and partition wall (3) are made by plastic plate; One water inlet pipe (1) is arranged at the top, one side of partition wall (3), and a rising pipe (5) is arranged at the other side top of partition wall (3).Filling filler in the pond, the filler general thickness is 100cm, the filler fill order is: bottom filling particle diameter is that the pebbles filler (9) of 40～80mm is crossed water layer thickness 10cm, be that particle diameter is zeolite and the Wingdale mixed fillers (8) of 4～8mm on it, volume ratio is 1: 1, thickness is 80cm, and the quartzy fine sand layer (2) that particle diameter is 1～2mm is filled out in the shop, top, and thickness is 10cm.Planting above the quartzy fine sand layer (2) has plant (4), and plant (4) is based on the various plants bed of Canna generalis Bailey, and with napier grass, calamus with the hay grass is mixed takes plantation, Canna generalis Bailey, napier grass, calamus, hay grass are planted 8,2,8,2 respectively; Root system of plant (6) is deeply to pebbles layer (9).
Adopt vertical compound flow constructed wetland, to the water inlet of stream cell surface, current direction is flowed to bottom pebbles water conservancy diversion layer, and then flows into the upward flow unit down through the main body packing layer current by down, and current are discharged by its top.
Effluent quality after raw water quality and process native system are handled sees Table 1.
Table 1 sewage quality table
| Water-quality guideline | pH | CODcr(mg/L) | Ammonia nitrogen (mg/L) | Total phosphorus (mg/L) | BOD 5(mg/L) |
| Water inlet water outlet national standard * | 6.8～7.0 6.5～7.5 6～9 | 14.40～32.40 6.24～18.82 20 | 1.37～18.99 0.01～4.68 4 | 0.30～3.85 0.01～0.45 0.5 | 2.34～9.93 0.13～2.80 5 |
* be " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard
Adopt 24 hours continuous water intake modes, intaking is secondary effluent of municipal sewage plant.The residence time is 24h, and hydraulic load is 0.4m
3/ (m
2D).Experimental result through system's steady running in continuous 9 months shows: this quartz sand simulation artificial wet land treating system can effectively be removed ammonia nitrogen, total phosphorus, COD and BOD, and treatment effect is seen Fig. 2, Fig. 3, Fig. 4, Fig. 5 respectively.
During 9 months steady running, when the content of COD, ammonia nitrogen, total phosphorus and BOD is respectively 14.40～32.40mg/L, 1.37～18.99mg/L, 0.30～3.85mg/L and 2.34～9.93mg/L in the water inlet, handle that the every Pollutant levels in back are reduced to 6.24～18.82 respectively, 0.01～4.68mg/L, 0.01～0.45mg/L and 0.13～2.80mg/L, leading indicator satisfies " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard-required.
Reach " urban sewage reutilization water for scenic environment use water quality " (GB/T 18921-2002) standard through main water-quality guideline such as ammonia nitrogen, total phosphorus, COD and BOD in the artificial swamp processing back water outlet.
Claims (3)
1. a treating water from city sewage treating plant by quartz sand using artificial wet land technology is carried out advanced treatment to effluent of municipal sewage plant, it is characterized in that adopting vertical compound flow constructed wetland, is filler with quartz sand; With Canna generalis Bailey, napier grass, calamus, hay grass is plant bed.
2. effluent of municipal sewage plant technology as claimed in claim 1, the particle diameter that it is characterized in that described quartz sand is 4～8mm.
3. effluent of municipal sewage plant technology as claimed in claim 1 is characterized in that described Canna generalis Bailey: napier grass: calamus: the planting proportion of hay grass is 4～8: 1～2: 4～8: 1～2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101195949A CN1792886A (en) | 2005-11-18 | 2005-11-18 | Tech. for treating water from city sewage treating plant by quartz sand using artificial wet land |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101195949A CN1792886A (en) | 2005-11-18 | 2005-11-18 | Tech. for treating water from city sewage treating plant by quartz sand using artificial wet land |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1792886A true CN1792886A (en) | 2006-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101195949A Pending CN1792886A (en) | 2005-11-18 | 2005-11-18 | Tech. for treating water from city sewage treating plant by quartz sand using artificial wet land |
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| CN (1) | CN1792886A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378010C (en) * | 2006-07-17 | 2008-04-02 | 文娱 | Sewage purifying plant facility and method |
| CN115520971A (en) * | 2022-10-25 | 2022-12-27 | 河北环境工程学院 | Method for treating sewage by artificial wetland with calamus as vegetation |
-
2005
- 2005-11-18 CN CNA2005101195949A patent/CN1792886A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378010C (en) * | 2006-07-17 | 2008-04-02 | 文娱 | Sewage purifying plant facility and method |
| CN115520971A (en) * | 2022-10-25 | 2022-12-27 | 河北环境工程学院 | Method for treating sewage by artificial wetland with calamus as vegetation |
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