CN102010042A - Diatomite dephosphorization and algae control method - Google Patents
Diatomite dephosphorization and algae control method Download PDFInfo
- Publication number
- CN102010042A CN102010042A CN 201010505250 CN201010505250A CN102010042A CN 102010042 A CN102010042 A CN 102010042A CN 201010505250 CN201010505250 CN 201010505250 CN 201010505250 A CN201010505250 A CN 201010505250A CN 102010042 A CN102010042 A CN 102010042A
- Authority
- CN
- China
- Prior art keywords
- water
- diatomite
- dephosphorization
- algae
- phosphorus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Water Treatment By Sorption (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Removal Of Specific Substances (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a diatomite dephosphorization and algae control method for open water bodies, such as lakes, reservoirs, scenic water, and the like. A diatomite dephosphorization and algae control facility comprises a water intake pump room, a mixing pond, a grid flocculation tank, an inclined pipe sedimentation tank and an effluent pump room, wherein a discharging opening of a diatomite feeding device extends into the mixing pond which is provided with a stirrer, and the grid flocculation tank and the inclined pipe sedimentation tank are provided with sludge discharge pipelines connected with a sludge collecting tank. Water in the open water bodies or branches is conveyed into the diatomite dephosphorization and algae control facility for dephosphorization treatment and then drained back to the water bodies to reduce the frequency and the strength of algal blooms of the water bodies. Proved by in-site tests of the lakes and the treatment of civil scenic water bodies, the invention has remarkable effect.
Description
Technical field
The present invention relates to the eutrophication control and the restoration of the ecosystem of open water body such as lake, reservoir, landscape water, be specifically related to open water body diatomite such as lake, reservoir, landscape water dephosphorization algae control method.
Background technology
Algal bloom is the conspicuous contradiction of eutrophication, whenever breaks out wawter bloom one time, and water ecological environment just experiences once " shock ".The 26S Proteasome Structure and Function of wawter bloom grievous injury aquatic ecosystem year after year, fish are mixed, and type miniaturization, submerged vegetation are withered away in a large number, lakeside wetland serious degradation ... become the common problem of many lakes, reservoir, landscape water, and the algal bloom control is the task of top priority of current eutrophication control.
Effectively nutrition loads such as the nitrogen in the reduction water body, phosphorus make algal grown lose its basic substance, are the fundamental ways that wawter bloom is administered.For a long time, China's eutrophication control follows the strategy of the two controls of nitrogen phosphorus always, but for the big water body of openings such as Hu Ku, limited environmental protection input is difficult to significantly cut down simultaneously in a short time nitrogen and phosphorus load, " three lakes " the wawter bloom situation occurred frequently that comprises Taihu Lake, Chaohu, Dian Chi does not obtain basic alleviation, so present stage is necessary the strategies of the two controls of nitrogen phosphorus are introspected and optimized.
Relatively control nitrogen and control phosphorus, control phosphorus is more effective, also more economical.At first, nitrogen cycle is to circulate fully or claim gaseous type circulation in the biosphere, except that natural processes such as thunderbolt, lightning, rainfall can be fixed to the nitrogen in the atmosphere in the water body, the biological nitrogen fixation of algae and bacterium also can provide almost inexhaustible nitrogenous source for water body.Therefore, even controlled the input of nitrogen effectively, the algae in the water body finally can not be restricted because of nitrogen stress yet.Reviewing the phosphorus circulation then is not exclusively circulation or the circulation of title appositional pattern, be stored at phosphorus in rock and the soil through natural erosion or artificial exploitation, enter water body with runoff or effluent sewage discharging, therefore as long as effectively controlled the input of phosphorus, the algae in the water body will be restricted because of lacking phosphorus.By comparing the circulation of nitrogen phosphorus in biosphere as seen, the input of controlling phosphorus effectively can limit algae grows in the water body, and control nitrogen then is invalid.Next, it is more economical that control phosphorus is controlled nitrogen.Denitrogenation need be carried out advanced treatment, can not use physico-chemical method, can only carry out nitrated, denitrification with microorganism, and cost is higher.And the dephosphorization ratio is easier to, and generally can reach 80～95% clearance by flocculation sediment, and cost is lower.
Nitrogen phosphorus is the essential element of algal grown, from seeing that in logic the two control one is the may command body eutrophication.Prevent and treat algal bloom, control phosphorus is not only effective, and more economical.Especially present stage, utilize limited environmental protection to drop into and implement to concentrate control phosphorus, the algal bloom control just can manifest effect.
Summary of the invention
The object of the present invention is to provide the method for preventing and treating of opening algae and water wawter blooms such as a kind of more economical, quicker, safer lake, reservoir, landscape water.
For reaching this purpose, the present invention by the following technical solutions:
(1), for large-scale open water bodys such as Hu Ku, diatomite dephosphorization facility is set its tributary is come water to implement dephosphorization to purify, cut down the phosphorus load in lake (storehouse) significantly, thereby progressively reduce the concentration of phosphorus in the storehouse, lake, alleviate the frequency and the intensity of algae and water wawter bloom;
For middle-size and small-size open water bodys such as the local waters of Hu Ku and landscape water, the disembarkation of drawing water of diatomite dephosphorization facility is set to be implemented to flow back to water body again after dephosphorization purifies, progressively reduce the concentration of phosphorus in the water body, and by rationally laying the position relation of intake, water outlet, form stable plug-flow flow field, improve the flowability of water body, alleviate the frequency and the intensity of algae and water wawter bloom;
(2), diatomite dephosphorization facility includes water intaking pump house, mixing pit, grid flocculation, the tube settler that is provided with step by step and goes out water plant, diatomite feeding device discharge port extends mixing pit, be provided with agitator in the described mixing pit, grid flocculation is provided with the spoil disposal pipeline with tube settler and is connected with mud-collecting slot;
(3), the dephosphorization treating processes is: the water intaking of diatomite dephosphorization facility enters mixing pit with addition of diatomite, and gravity flow enters grid flocculation after making diatomite and coming the water short mix; In flocculation basin, stir, form the flco macrobead, then enter the upward flow tube settler by waterpower; Realize mud-water separation in the tube settler, clear water flows into out water plant from water outlet, and water body is returned in pumping; Mud in grid flocculation and the tube settler enters mud-collecting slot, and the outward transport of mummification is regularly carried out landfill and disposed.
Diatomite dephosphorization facility has characteristics such as total phosphorus is removed efficient height, construction and working cost is low, occupation of land is few, and conventional water-purifying process has tangible comparative advantages.
The present invention administers by the insitu soil test and the city appearance water body in lake, achieves noticeable achievement.Dephosphorization control algae theory has also greatly improved the Technological Economy of administering technology, diatomite dephosphorization process of the present invention has characteristics such as total phosphorus is removed efficient height, construction and working cost is low, occupation of land is few, and conventional water-purifying process has tangible comparative advantages.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is applicable to the layout of the large-scale open water body in storehouse, lake for the present invention.
Fig. 3 is that the present invention is for the local waters of Hu Ku and the layout of the middle-size and small-size open water body of landscape water.
Embodiment
The present invention is described further below in conjunction with specific examples, but protection scope of the present invention is not limited in this.
1, example one: referring to Fig. 1,2.Lake original position dephosphorization control algae experimental project selects the serious water of large-size lake wawter bloom to the lakeside, has made up the about 15000m of area
2, the about 15000m of the water yield
3The test lake region, the border, test site adopts the flexible enclosure 1 of waterproof PVC to cut apart with outer lake body.The land is to building a 7000m
3The diatomite dephosphorization facility 2 of/d scale flows back to the test lake region after the extracting lake water disembarkation dephosphorization.Carried out the long run test in 1 year by a definite date, lake body total phosphorus concentration 0.2～0.4mg/L outside the test site, diatomite dephosphorization facility moves continuously, owing to can not intercept the inside and outside water yield exchange in test site fully, total phosphorus concentration maintains the low-level relatively of 1.1～1.3mg/L all the time in the test site.The lake breakout of water bloom phase in 6～September, lake body algae density is up to 10 outside the test site
9Mells/L, algae density is controlled at 10 all the time in the test site
6In the mells/L, visually present the obvious contrast of " ten thousand green lake surfaces one are checked up " inside and outside the test site.
Diatomite dephosphorization facility major technique economic parameters is as follows, and total phosphorus removes efficient height, construction and working cost is low, it is few to take up an area of, and conventional water-purifying process has tangible comparative advantages.
Total tp removal rate: 〉=90%;
Nitrogen removal rate: 20～70%;
Main construction fabrication cost: 700,000 yuan;
Ton water fabrication cost: $100/m
3
Ton water running expense: $0.15/m
3
Main construction is taken up an area of: 138.8m
2
Ten thousand tons of water conservancy project journeys are taken up an area of: 198.2m
2/ 10
4m
3
2, example two: referring to Fig. 1,3.City appearance water body dephosphorization control algae engineering adopts the diatomite dephosphorization process to 3.0 * 10
5m
3City appearance water body is implemented the algal bloom control.Build a 25000m at landscape water body one end
3The diatomite dephosphorization facility 2 of/d scale flows back to the other end of landscape water body after the dephosphorization by water-carriage system 3 disembarkation of drawing water.Landscape water body total phosphorus concentration 0.1～0.2mg/L before the engineering construction, summer, algae density was up to 10
8Mells/L, water body is deep green; The water body total phosphorus concentration is controlled at below the 0.05mg/L behind the engineering construction, and algae density is controlled at 10
4In the mells/L, water body is light green.
Owing to be located in the old town, the major economic indicators of this project slightly are inferior to aforementioned lake original position dephosphorization control algae experimental project, but still conventional water-purifying process has tangible comparative advantages, shows characteristics such as total phosphorus is removed efficient height, construction and working cost is low, occupation of land is few.
Total tp removal rate: 〉=80%;
Nitrogen removal rate: 10～40%;
Main construction fabrication cost: 337.3 ten thousand yuan;
Ton water fabrication cost: $134.9/m
3
Ton water running expense: $0.18/m
3
Main construction is taken up an area of: 563.6m
2
Ten thousand tons of water conservancy project journeys are taken up an area of: 225.5m
2/ 10
4m
3
Claims (1)
1. diatomite dephosphorization algae control method is characterized in that:
(1), for large-scale open water bodys such as Hu Ku, diatomite dephosphorization facility is set its tributary is come water to implement dephosphorization to purify, cut down the phosphorus load in lake (storehouse) significantly, thereby progressively reduce the concentration of phosphorus in the storehouse, lake, alleviate the frequency and the intensity of algae and water wawter bloom;
For middle-size and small-size open water bodys such as the local waters of Hu Ku and landscape water, the disembarkation of drawing water of diatomite dephosphorization facility is set to be implemented to flow back to water body again after dephosphorization purifies, progressively reduce the concentration of phosphorus in the water body, and by rationally laying the position relation of intake, water outlet, form stable plug-flow flow field, improve the flowability of water body, alleviate the frequency and the intensity of algae and water wawter bloom;
(2), diatomite dephosphorization facility includes water intaking pump house, mixing pit, grid flocculation, the tube settler that is provided with step by step and goes out water plant, diatomite feeding device discharge port extends mixing pit, be provided with agitator in the described mixing pit, grid flocculation is provided with the spoil disposal pipeline with tube settler and is connected with mud-collecting slot;
(3), the dephosphorization treating processes is: the water intaking of diatomite dephosphorization facility enters mixing pit with addition of diatomite, and gravity flow enters grid flocculation after making diatomite and coming the water short mix; In flocculation basin, stir, form the flco macrobead, then enter the upward flow tube settler by waterpower; Realize mud-water separation in the tube settler, clear water flows into out water plant from water outlet, and water body is returned in pumping; Mud in grid flocculation and the tube settler enters mud-collecting slot, and the outward transport of mummification is regularly carried out landfill and disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105052502A CN102010042B (en) | 2010-10-09 | 2010-10-09 | Diatomite dephosphorization and algae control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105052502A CN102010042B (en) | 2010-10-09 | 2010-10-09 | Diatomite dephosphorization and algae control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102010042A true CN102010042A (en) | 2011-04-13 |
| CN102010042B CN102010042B (en) | 2012-06-13 |
Family
ID=43840401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105052502A Expired - Fee Related CN102010042B (en) | 2010-10-09 | 2010-10-09 | Diatomite dephosphorization and algae control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102010042B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540808A (en) * | 2016-01-18 | 2016-05-04 | 北京绿景行科技发展有限公司 | Phosphorous removal and alga control method for medium eutrophication water body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793071A (en) * | 2004-12-18 | 2006-06-28 | 张小勇 | Series mixed biological manure filling agent material made by flyash and mfg. process thereof |
| CN1830541A (en) * | 2006-01-20 | 2006-09-13 | 王家强 | Modified natural and self-making floating carrier and mesopore molecular sieve denitrogen dephosphorus material, its preparation and application |
| JP2007319792A (en) * | 2006-06-01 | 2007-12-13 | Daicen Membrane Systems Ltd | Waste water treatment method |
| CN101125688A (en) * | 2007-07-13 | 2008-02-20 | 常州市天歌高分子科技有限公司 | Nuisanceless algae processing agent and using method thereof |
| CN101362623A (en) * | 2008-08-18 | 2009-02-11 | 江苏省嘉庆水务发展有限公司 | Sewage water treatment method by essential diatom earth cooperation with biochemical action |
-
2010
- 2010-10-09 CN CN2010105052502A patent/CN102010042B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793071A (en) * | 2004-12-18 | 2006-06-28 | 张小勇 | Series mixed biological manure filling agent material made by flyash and mfg. process thereof |
| CN1830541A (en) * | 2006-01-20 | 2006-09-13 | 王家强 | Modified natural and self-making floating carrier and mesopore molecular sieve denitrogen dephosphorus material, its preparation and application |
| JP2007319792A (en) * | 2006-06-01 | 2007-12-13 | Daicen Membrane Systems Ltd | Waste water treatment method |
| CN101125688A (en) * | 2007-07-13 | 2008-02-20 | 常州市天歌高分子科技有限公司 | Nuisanceless algae processing agent and using method thereof |
| CN101362623A (en) * | 2008-08-18 | 2009-02-11 | 江苏省嘉庆水务发展有限公司 | Sewage water treatment method by essential diatom earth cooperation with biochemical action |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540808A (en) * | 2016-01-18 | 2016-05-04 | 北京绿景行科技发展有限公司 | Phosphorous removal and alga control method for medium eutrophication water body |
| CN105540808B (en) * | 2016-01-18 | 2018-12-18 | 北京绿景行科技发展有限公司 | A kind of method of medium eutrophic water body dephosphorization control algae |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102010042B (en) | 2012-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203845918U (en) | Energy-saving emission-reducing type town sewage treatment system | |
| KR100423662B1 (en) | System of the purification river water with biological contact oxidation type to install on any natural river banks and water sides | |
| CN101544423B (en) | A/O denitrification sewage treatment process and device capable of realizing sludge reduction | |
| CN203269659U (en) | High-efficiency nitrogen removal three-stage composite constructed wetland | |
| CN103408194A (en) | Small sewage treatment hydrolysis and gas-stripping and precipitation technique method | |
| CN104003527B (en) | A kind of polluted water body in-situ prosthetic device and method thereof | |
| CN103395948B (en) | Z-shaped gas stripping reflux two-stage precipitation integrated sewage treatment tank | |
| CN103183445A (en) | Method and system for advanced treatment of rural domestic sewage | |
| CN207276432U (en) | A kind of mud decrement and the synchronous sewage-treatment plant for receiving phosphorus | |
| CN103253837B (en) | Denitrification filter system | |
| CN203545784U (en) | Combined type oxidation ditch with external sedimentation basin | |
| CN218146051U (en) | A2O integration sewage treatment pond complete set system | |
| CN102010042B (en) | Diatomite dephosphorization and algae control method | |
| CN201842685U (en) | Kieselguhr dephosphorizing and alga controlling system of open water bodies, such as lakes, reservoirs, landscape water and the like | |
| CN204022566U (en) | A kind of strengthening composite type artificial wetland Sewage treatment systems | |
| CN203392987U (en) | Z-type integrated sewage treatment pond employing gas stripping reflux and two-stage precipitation | |
| CN104556365B (en) | CASS pond high-efficient deamination nitrogen remodeling method | |
| CN104692587A (en) | Buried unpowered five-cell purification tank sewage treatment equipment | |
| CN201952305U (en) | Sewage treatment device | |
| CN104058507B (en) | Reinforced composite artificial wetland sewage treatment system | |
| CN204529603U (en) | A kind of wastewater from chemical industry leaks the treatment system of polluted surface water | |
| CN204550335U (en) | A kind of distributing integrated sewage treating apparatus | |
| CN103011415B (en) | Simple water treatment and recovery device for large-size wetland | |
| CN201284273Y (en) | Integrated reverse anoxic / anaerobic / aerobic sewage water denitrification and dephosphorization apparatus | |
| CN203079752U (en) | Ecological-type water purifying pool for wetland |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20131009 |