CN104787987A - Device and method for using industrial wastes to control lake eutrophication - Google Patents
Device and method for using industrial wastes to control lake eutrophication Download PDFInfo
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- CN104787987A CN104787987A CN201510203018.6A CN201510203018A CN104787987A CN 104787987 A CN104787987 A CN 104787987A CN 201510203018 A CN201510203018 A CN 201510203018A CN 104787987 A CN104787987 A CN 104787987A
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- nanometer aeration
- light electrolysis
- aeration
- river course
- artificial swamp
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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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a device for using industrial wastes to control lake eutrophication. A micro vortex coagulation device is arranged in a closed pre-dam; effluent water of the closed pre-dam enters a micro-electrolytic constructed wetland; the micro-electrolytic constructed wetland is filled with micro-electrolytic iron-carbon fillers; plants grow on the micro-electrolytic iron-carbon fillers; one dosing device is buried at a water inlet position of the micro-electrolytic constructed wetland; the effluent water of the micro-electrolytic constructed wetland enters the closed pre-dam and a nano aeration river respectively; a nano aeration tray is arranged in the nano aeration river; a necking aeration head is arranged above the nano aeration tray; carbon fiber fillers are perpendicularly laid above the necking aeration head; an ecological floating island floats on the surface of the nano aeration river; plants grow on the ecological floating island; the other dosing device is buried at a water outlet position of the nano aeration river; effluent water of the nano aeration river is connected to the inflow water of the closed pre-dam. The invention further discloses a method for lake eutrophication. With adoption of the device, the content of aromatic ring substances in the treated sewage is reduced by more than 99%.
Description
Technical field
The present invention relates to a kind of device reducing Eutrophication materials (as: nitrogen, phosphorus, potassium nutrition thing, organic pollutant, heavy metal etc.) in urban lakes water body, relate to a kind of device utilizing industrial waste to carry out lake eutrophication control particularly.
The invention still further relates to the method utilizing said apparatus to carry out lake eutrophication control.
Background technology
The pollution of lake, reservoir and eutrophication are one of China's great environmental problem.Through relevant scientific research, environment monitoring unit for many years finding show, some urban lakes of China have reached mesotrophy and Heavyeutrophication level all.Fact proved, China's major part urban lakes has reached eutrophy or supereutrophic degree.Urban lakes and reservoir are important water sources, city, can be used as the concentrated drinking water source in city, or freshwater aquiculture, scenery travelling, communications and transportation and industrial or agricultural use water water source etc.But, still have many cities sanitary sewage, trade effluent, people and animals' fecaluria, chemical fertilizer, rubbish etc. to be led off in Xiang Hu, storehouse arbitrarily at present, make a lot of lake and reservoir be subject to severe contamination.Due in sanitary sewage and many trade effluents all containing the nutrient substance such as phosphorus, nitrogen.And the current of lake, storehouse water body are slow, the residence time is long again, and Dang Hu, storehouse water body Middle nutrition element accumulate to certain level, namely can form eutrophication pollution.In the lake of eutrophication, reservoir water body, reach the season being most suitable for algae reproduction at sunlight and water temperature, large stretch of water surface can be covered by algae, not only makes water-band foul smelling, and can shielded from sunlight, and starvation is to the dissolving in water.At the bottom of withered algae connate water, be again newborn source of pollution, they carry out anaerobically fermenting, make dissolved oxygen disappear Expendable totally, and the continuous liberating nitrogen phosphorus of meeting, for waterplant as nutrition.So go round and begin again and to circulate in water body, aunt causes lake day by day to be deposited shoaling, form marsh eventually.
Eutrophication problem refers to that the nutritive substance such as nitrogen, phosphorus enters slow flow water bodies, causes waterplant or plant plankton hypertrophy, and aquatic ecosystem balances a kind of water body effect destroyed, and its harm is comparatively large, brings a lot of disadvantageous effect to human being's production and life.Although in some cases, body eutrophication is the result of organic growth, and mankind's activity accelerates the eutrophication process of water body greatly.For a long time, all there is eutrophication problem in a lot of country to the research origin history of eutrophication problem in the world.In recent years, China's lake eutrophication eutrophication tempo is quite fast.China is the numerous country in lake, and more than 2700, existing lake, the total area reaches 9.1 ten thousand km
2wherein about 1/3 is shallow lake, is mainly distributed in East Coastal and In Middle And Lower Reaches of Changjiang River.According to survey data with evaluate Eutrophic criteria of lakes both at home and abroad, in more typical 37 Main Lakes of China, Middle nutrition type and middle-nutrient type account for 55.8%, eutrophy type account for 14.7%, heavy eutrophy type account for 8.8%.Wherein Caohai of Dianchi Lake is severe eutrophic state, and water quality is V class or bad V class, and Taihu Lake and Chaohu are eutrophic state, and the main contamination index of 3 Big Lakess is ammonia nitrogen and total phosphorus.Along with the increase of the Production of manure such as nitrogen, phosphorus and usage quantity, and the quantity discharged of industrial sewage and sanitary sewage constantly increases, and the amount that nutritive salt mixes people lake also increases for it, and the water environment safety problem that lake eutrophication causes becomes increasingly conspicuous.The indigo plant, the green algae that characterize rich foster state water body breed in a large number, colourity increases, transparency declines, oxygen-consumption rises, water body is smelly, anoxic causes fish kills, produce peculiar smell and Algae toxins etc., while affecting Water Environment In Lakes function, also bring serious harm to the production of the people and life, even jeopardize the ecological safety in basin.
Summary of the invention
The object of the present invention is to provide a kind of device utilizing industrial waste to carry out lake eutrophication control.
Another object of the present invention is to provide a kind of method utilizing said apparatus to carry out lake eutrophication control.
For achieving the above object, the device utilizing industrial waste to carry out lake eutrophication control provided by the invention, primarily of closed front damming, light electrolysis artificial swamp, nanometer aeration river course three part composition; Wherein:
Micro swirl coagulator is provided with in closed front damming;
The water outlet of closed front damming enters in light electrolysis artificial swamp, and the inside of light electrolysis artificial swamp is filled with light electrolysis iron carbon filler, serike on light electrolysis iron carbon filler, and water inlet place of light electrolysis artificial swamp is embedded with chemicals dosing plant;
The water outlet of light electrolysis artificial swamp enters in closed front damming and nanometer aeration river course respectively, is provided with nanometer aeration dish, is provided with reducing aeration head above nanometer aeration dish in nanometer aeration river course, and reducing aeration head upper vertical lays carbon fibre filler; The river surface in nanometer aeration river course floats and has ecological floating island, serike on ecological floating island, and water outlet place in nanometer aeration river course is embedded with chemicals dosing plant;
The water outlet in nanometer aeration river course is connected to the water inlet of closed front damming.
Described device, wherein, the nanometer aeration dish in nanometer aeration river course connects a nanometer aeration machine, and reducing aeration head connects a common aerator.
Described device, wherein, the air inlet of nanometer aeration dish is O
3, the air inlet of reducing aeration head is O
2.
Described lake eutrophication control device, wherein, the light electrolysis iron carbon filler that light electrolysis artificial swamp is filled is the mixture of iron filings, rubble, slag.
Described device, wherein, the plant of light electrolysis artificial swamp plantation is calamus and Spiked Loosestrife, and the plant that ecological floating island is planted is Sedum alfredii Hance.
Said apparatus provided by the invention carries out the method for lake eutrophication control:
Closed front damming utilizes a large amount of micro-nano bubble in the molysite of light electrolysis artificial wetland effluent backflow middle and high concentration and nanometer aeration river course backwater to carry out flocculation sediment and the solid phosphorus of denitrogenation;
Nanometer aeration machine in nanometer aeration river course and common aerator alternation aeration, by part sewage backflow in nanometer aeration river course to closed front damming, residue sewage directly discharges;
Nanometer aeration river course is for a small amount of organism residual in light electrolysis artificial wetland effluent, the hydroxyl radical free radical utilizing nanometer aeration to produce improves sewage B/C further, then under the synergy of common aeration and carbon fibre, by residual organic contaminants degraded in sewage, aging microbial film on the strong impact force wash-out carbon fibre that nanometer aeration produces, surface charge promotes repulsion between carbon fibre, prevents microbial film passivation, dead film, is activated by microbial film; Recycle the effect of common aeration process enhancement microbiological, nanometer aeration is produced small organic molecule complete oxidation, nitrogen and remove completely and improve water body dissolved oxygen content.
Described method, wherein, when the C/N of light electrolysis artificial swamp water inlet is than during for 5:1, the rubble in light electrolysis iron carbon filler and the volume ratio of slag are 3:1.
Described method, wherein, when the C/N of light electrolysis artificial swamp water inlet is than during for 2:1, the rubble in light electrolysis iron carbon filler and the volume ratio of slag are 2:1.
Described method, wherein, it is acid that the chemicals dosing plant buried underground by water inlet place of light electrolysis artificial swamp controls pH value in light electrolysis artificial swamp; It is alkalescence that the chemicals dosing plant buried underground by nanometer aeration river course water outlet place controls pH value in nanometer aeration river course.
The present invention is directed to the water quality characteristic of lake eutrophication water body hypoxemia low-carbon (LC) height ammonia nitrogen, research and develop closed front damming-light electrolysis artificial swamp-nanometer aeration river water quality improving environment, be applicable to low dissolved oxygen and high ammonia nitrogen lake and river etc., water outlet is limpid, water quality meets national standard reference, and effluent quality transparency is high, and its treatment effect is particularly remarkable, reduce by more than 99% by aromatic ring class material in the sewage of this device process, effluent quality transparency is high.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present invention.
Primary clustering nomenclature in accompanying drawing:
1 chemicals dosing plant; 2 plants; 3 ecological floating islands; 4 micro swirl coagulators; 5 closed front damming; 6 iron carbon fillers; 7 light electrolysis artificial swamps; 8 nanometer aeration machines; 9 common aerators; 10 nanometer aeration dishes; 11 nanometer aeration river courses; 12 carbon fibre fillers; 13 reducing aeration heads.
Embodiment
The device utilizing industrial waste to carry out lake eutrophication control provided by the invention, primarily of closed front damming, light electrolysis artificial swamp, nanometer aeration river course three part composition; Wherein:
Be provided with micro swirl coagulator 4 in closed front damming 5, the water outlet of closed front damming 5 connects water inlet place of light electrolysis artificial swamp 7, and water inlet place of light electrolysis artificial swamp 7 is embedded with establishes chemicals dosing plant 1.Light electrolysis artificial swamp 7 inside is filled with light electrolysis iron carbon filler 6, and this light electrolysis iron carbon filler is the mixtures such as iron filings, rubble, slag, to implement the technical scheme of the treatment of wastes with processes of wastes against one another.Serike 2 on light electrolysis iron carbon filler, the Plants selection calamus of light electrolysis artificial swamp plantation and Spiked Loosestrife.
The water outlet of light electrolysis artificial swamp 7 is connected to nanometer aeration river course 11 and closed front damming 5 respectively.Inside, nanometer aeration river course 11 is provided with nanometer aeration dish 10, and nanometer aeration dish 10 connects a nanometer aeration machine 8, and air inlet is O
3, be provided with reducing aeration head 13 above nanometer aeration dish 10, reducing aeration head 13 connects a common aerator 9, and air inlet is O
2.Reducing aeration head 13 upper vertical lays carbon fibre filler 12; Nanometer aeration river course 11 river surface floats ecological floating island 3, serike 2 on ecological floating island 3, the Plants selection Sedum alfredii Hance that ecological floating island is planted.Water outlet place in nanometer aeration river course is embedded with chemicals dosing plant 1, and is connected to water inlet place of closed front damming 5.
The chemicals dosing plant buried underground by the water inlet of light electrolysis artificial swamp to control in light electrolysis artificial swamp pH value in acid, so that the good operation of light electrolysis, and prevents micro-electrolysis stuffing from scabbing, hardens; The chemicals dosing plant buried underground by the water outlet of nanometer aeration river course controls pH value in nanometer aeration river course and, in alkalescence, prevents water outlet from remaining heavy metal, is discharged by the iron mud precipitated or is back in closed front damming.
The method that said apparatus provided by the invention is used for lake eutrophication control is:
Closed front damming 5 utilizes a large amount of micro-nano bubble in the molysite of light electrolysis artificial swamp 7 effluent recycling middle and high concentration and nanometer aeration river course 11 backwater to carry out flocculation sediment and the solid phosphorus of denitrogenation, and wherein coagulation partial reaction is Fe
3++ 2OH
-→ Fe (OH)
3↓; 4Fe
2++ O
2+ 2H
2o+8OH
-→ 4Fe (OH)
3↓; Gu phosphorus partial reaction is Fe
3++ PO
4 3--→ FePO
4↓; 3Fe
2++ 2PO
4 3--→ Fe
3(PO
4)
2↓; Denitrification reaction is: nanometer aeration river course 11 is at nanometer aeration stage effluent recycling, and the nano bubble of tertiary iron phosphate and iron precipitated iron sludge system and high-dissolvability can to promote in water inlet that nitrogen carries out synchronous nitration and denitrification and removes; Common aeration phase effluent recycling, the rapid dissipation of oxygen, remaining dissolved oxygen is utilized rapidly by ferrous ion and forms precipitation, carries out denitrogenation in closed front damming 5 under low-carbon (LC) anaerobic environment by Anammox effect.Light electrolysis artificial swamp 7 backwater mixes the Fe (OH) generated with nanometer aeration river course 11 backwater
3and FePO
4be active gluey flocculation agent, through strong impact force and the strong oxidizing property of micro-nano bubble, flco interrupts repeatedly, recombinate, its adsorptive power is than common Fe (OH)
3by force, the suspended substance adsorption coprecipitation in waste water is removed, carry the micro-nano bubble mixed in nanometer aeration river course 11 backwater simultaneously, because nano bubble has surface charge, usual employing zeta-potential characterizes, bubble inside has larger pressure, the shockwave of cavitation bubble collapse has strong oxygenolysis ablation, during bubbles burst, interface disappears, the zeta-potential of microbubble is significantly increased, the chemical energy that surrounding environment acutely changes generation impels hydroxyl radical free radical to generate, its hydroxyl radical free radical generated has very strong oxygenolysis pretreatment potentiality to organism, and under hydroxy radical qiao and surface charge effect, coloring matter in water inlet is decoloured.
Micro electrolysis tech combines with artificial swamp by light electrolysis artificial swamp 7, the ability of strengthened artificial wet land matrix treatments waste water, can alleviate the wetland problem that reduces of processing efficiency in the winter time simultaneously.Specifically the conventional artificial swamp matrix such as iron filings and Wetland Substrate (slag, rubble) are mixed, form light electrolysis microcirculation, make COD, ammonia nitrogen removal frank exceed more than 30%, TP clearance than conventional wetland technology and exceed more than 20%; Iron-carbon micro-electrolysis product has very high chemically reactive, at anode, and the nascent state Fe of generation
2+; At negative electrode, the activity [H] of generation, all can with many pollutent component generation redox reactions in waste water, make macromolecular substance be decomposed into small-molecule substance, make the mass transfer of bio-refractory become easy to handle material, improve the biodegradability of waste water.
Nanometer aeration machine 8 and common aerator 9 alternation aeration in nanometer aeration river course 11: after nanometer aeration machine 8 works two hours, by part sewage backflow in aeration river course to closed front damming; After then using common aerator 9 to work two hours, by part sewage backflow in aeration river course to closed front damming 5, residue sewage can direct emission treatment.Nanometer aeration river course 11 is for a small amount of organism residual in light electrolysis artificial swamp 7 water outlet, the hydroxyl radical free radical utilizing nanometer aeration to produce improves sewage B/C further, then under the synergy of common aeration and carbon fibre filler 12, by residual organic contaminants degraded in sewage, detailed process be nanometer aeration produce strong impact force wash-out carbon fibre 12 on aging microbial film, surface charge promotes repulsion between carbon fibre, prevents microbial film passivation, dead film, is activated by microbial film; Recycle the effect of common aeration process enhancement microbiological, nanometer aeration is produced small organic molecule complete oxidation, nitrogen and remove completely and improve water body dissolved oxygen content.
When in the water inlet of light electrolysis artificial swamp, C/N is higher than the clearance of COD and P during 5:1, now the volume ratio of rubble and slag is that 3:1 is best; C/N is than when being 2:1, and the clearance of N is the highest, and now the volume ratio of rubble and slag is that 2:1 effect is best.
Claims (9)
1. utilize industrial waste to carry out a device for lake eutrophication control, primarily of closed front damming, light electrolysis artificial swamp, nanometer aeration river course three part composition; Wherein:
Micro swirl coagulator is provided with in closed front damming;
The water outlet of closed front damming enters in light electrolysis artificial swamp, and the inside of light electrolysis artificial swamp is filled with light electrolysis iron carbon filler, serike on light electrolysis iron carbon filler, and water inlet place of light electrolysis artificial swamp is embedded with chemicals dosing plant;
The water outlet of light electrolysis artificial swamp enters in closed front damming and nanometer aeration river course respectively, is provided with nanometer aeration dish, is provided with reducing aeration head above nanometer aeration dish in nanometer aeration river course, and reducing aeration head upper vertical lays carbon fibre filler; The river surface in nanometer aeration river course floats and has ecological floating island, serike on ecological floating island, and water outlet place in nanometer aeration river course is embedded with chemicals dosing plant;
The water outlet in nanometer aeration river course is connected to the water inlet of closed front damming.
2. device according to claim 1, wherein, the nanometer aeration dish in nanometer aeration river course connects a nanometer aeration machine, and reducing aeration head connects a common aerator.
3. urban lakes eutrophy control device according to claim 1, wherein, the air inlet of nanometer aeration dish is O
3, the air inlet of reducing aeration head is O
2.
4. device according to claim 1, wherein, the light electrolysis iron carbon filler that light electrolysis artificial swamp is filled is the mixture of iron filings, rubble, slag.
5. device according to claim 1, wherein, the plant of light electrolysis artificial swamp plantation is calamus and Spiked Loosestrife, and the plant that ecological floating island is planted is Sedum alfredii Hance.
6. device described in claim 1 carries out the method for lake eutrophication control:
Closed front damming utilizes a large amount of micro-nano bubble in the molysite of light electrolysis artificial wetland effluent backflow middle and high concentration and nanometer aeration river course backwater to carry out flocculation sediment and the solid phosphorus of denitrogenation;
Nanometer aeration machine in nanometer aeration river course and common aerator alternation aeration, by part sewage backflow in nanometer aeration river course to closed front damming, residue sewage directly discharges;
Nanometer aeration river course is for a small amount of organism residual in light electrolysis artificial wetland effluent, the hydroxyl radical free radical utilizing nanometer aeration to produce improves sewage B/C further, then under the synergy of common aeration and carbon fibre, by residual organic contaminants degraded in sewage, aging microbial film on the strong impact force wash-out carbon fibre that nanometer aeration produces, surface charge promotes repulsion between carbon fibre, prevents microbial film passivation, dead film, is activated by microbial film; Recycle the effect of common aeration process enhancement microbiological, nanometer aeration is produced small organic molecule complete oxidation, nitrogen and remove completely and improve water body dissolved oxygen content.
7. method according to claim 6, wherein, when the C/N of light electrolysis artificial swamp water inlet is than during for 5:1, the rubble in light electrolysis iron carbon filler and the volume ratio of slag are 3:1.
8. the method according to claim 6 or 7, wherein, when the C/N of light electrolysis artificial swamp water inlet is than during for 2:1, the rubble in light electrolysis iron carbon filler and the volume ratio of slag are 2:1.
9. method according to claim 6, wherein, it is acid that the chemicals dosing plant buried underground by water inlet place of light electrolysis artificial swamp controls pH value in light electrolysis artificial swamp; It is alkalescence that the chemicals dosing plant buried underground by nanometer aeration river course water outlet place controls pH value in nanometer aeration river course.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203018.6A CN104787987B (en) | 2015-04-27 | 2015-04-27 | A kind of apparatus and method utilizing industrial waste to carry out lake eutrophication control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203018.6A CN104787987B (en) | 2015-04-27 | 2015-04-27 | A kind of apparatus and method utilizing industrial waste to carry out lake eutrophication control |
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| Publication Number | Publication Date |
|---|---|
| CN104787987A true CN104787987A (en) | 2015-07-22 |
| CN104787987B CN104787987B (en) | 2016-08-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502830A (en) * | 2016-01-08 | 2016-04-20 | 沈晓笑 | System and method for treating black and odorous stagnant water |
| CN105948390A (en) * | 2016-06-08 | 2016-09-21 | 上海中韩术环境科技有限公司 | Floating type device riverway bottom pollutant removing and purifying device and method |
| CN106365389A (en) * | 2016-11-11 | 2017-02-01 | 广州资源环保科技股份有限公司 | Artificial wetland purifying treatment system applicable to urban black and odorous river courses |
| CN111138048A (en) * | 2020-03-23 | 2020-05-12 | 北京贝特斯联合科技有限公司 | Intelligent river sewage treatment plant |
| CN115925125A (en) * | 2022-01-24 | 2023-04-07 | 重庆交通大学 | Ecological floating bed device for landscape water body restoration treatment |
-
2015
- 2015-04-27 CN CN201510203018.6A patent/CN104787987B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502830A (en) * | 2016-01-08 | 2016-04-20 | 沈晓笑 | System and method for treating black and odorous stagnant water |
| CN105948390A (en) * | 2016-06-08 | 2016-09-21 | 上海中韩术环境科技有限公司 | Floating type device riverway bottom pollutant removing and purifying device and method |
| CN105948390B (en) * | 2016-06-08 | 2021-02-19 | 上海中韩术环境科技有限公司 | Floating type river channel bottom pollutant removing and purifying device and method |
| CN106365389A (en) * | 2016-11-11 | 2017-02-01 | 广州资源环保科技股份有限公司 | Artificial wetland purifying treatment system applicable to urban black and odorous river courses |
| CN106365389B (en) * | 2016-11-11 | 2019-05-21 | 广州资源环保科技股份有限公司 | A kind of Constructed Wetland For Purifying processing system suitable for cities and towns black-odor riverway |
| CN111138048A (en) * | 2020-03-23 | 2020-05-12 | 北京贝特斯联合科技有限公司 | Intelligent river sewage treatment plant |
| CN115925125A (en) * | 2022-01-24 | 2023-04-07 | 重庆交通大学 | Ecological floating bed device for landscape water body restoration treatment |
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|---|---|
| CN104787987B (en) | 2016-08-17 |
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