CN112499895A - Circulation system for repairing closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid - Google Patents
Circulation system for repairing closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid Download PDFInfo
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- CN112499895A CN112499895A CN202011311457.6A CN202011311457A CN112499895A CN 112499895 A CN112499895 A CN 112499895A CN 202011311457 A CN202011311457 A CN 202011311457A CN 112499895 A CN112499895 A CN 112499895A
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- water body
- ammonium vanadium
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- ammonium
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 346
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 title claims abstract description 154
- 230000003647 oxidation Effects 0.000 title claims abstract description 63
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 63
- 239000002253 acid Substances 0.000 title claims abstract description 53
- 239000002699 waste material Substances 0.000 title claims abstract description 52
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 30
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 26
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 24
- 238000005507 spraying Methods 0.000 claims description 19
- WZUKKIPWIPZMAS-UHFFFAOYSA-K Ammonium alum Chemical compound [NH4+].O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O WZUKKIPWIPZMAS-UHFFFAOYSA-K 0.000 claims description 9
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
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- 230000007613 environmental effect Effects 0.000 claims description 8
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- 235000011130 ammonium sulphate Nutrition 0.000 claims description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 239000000920 calcium hydroxide Substances 0.000 claims description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
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- 241000196324 Embryophyta Species 0.000 description 43
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- 230000000694 effects Effects 0.000 description 18
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- 229910052782 aluminium Inorganic materials 0.000 description 7
- -1 aluminum ion Chemical class 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 230000008439 repair process Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- HSEYYGFJBLWFGD-UHFFFAOYSA-N 4-methylsulfanyl-2-[(2-methylsulfanylpyridine-3-carbonyl)amino]butanoic acid Chemical group CSCCC(C(O)=O)NC(=O)C1=CC=CN=C1SC HSEYYGFJBLWFGD-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001706 oxygenating effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
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- 230000002035 prolonged effect Effects 0.000 description 3
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- 206010021143 Hypoxia Diseases 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241001466864 Clarias fuscus Species 0.000 description 1
- 241000242583 Scyphozoa Species 0.000 description 1
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- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
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- 238000005189 flocculation Methods 0.000 description 1
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- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
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- 238000010057 rubber processing Methods 0.000 description 1
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- 230000008719 thickening Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
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- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/68—Aluminium compounds containing sulfur
- C01F7/74—Sulfates
- C01F7/76—Double salts, i.e. compounds containing, besides aluminium and sulfate ions, only other cations, e.g. alums
- C01F7/762—Ammonium or alkali metal aluminium sulfates
- C01F7/765—Ammonium aluminium sulfates
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/16—Regeneration of process solutions
- C25D21/18—Regeneration of process solutions of electrolytes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a circulating system for repairing a closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid, which is arranged in the closed landscape water body and comprises a water circulating mechanism and an ammonium vanadium recovery device; the ammonium vanadium recovery device is arranged close to a production line of an anodic oxidation tank provided with aluminum alloy and is used for recovering ammonium vanadium prepared by anodic oxidation waste acid through chemical reaction; and the water circulation mechanism uses the ammonium vanadium recovered by the ammonium vanadium recovery device as a water treatment agent to carry out circulating purification treatment on the closed landscape water body, and utilizes the ammonium vanadium to purify the closed landscape water body and adjust the pH value of the closed landscape water body to 5-7.5 in the circulating process. Recovering and preparing ammonium vanadium by taking anodic oxidation waste acid of aluminum alloy as a raw material; ammonium vanadium is utilized to purify the closed landscape water body and regulate the pH value of the water body in water circulation. The waste liquid is recycled, and the recycled substances are reasonably utilized. Not only improves the environment, but also beautifies the environment, and has better comprehensive economic benefit.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a circulating system for repairing a closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid.
Background
The closed landscape water body refers to the closed water body which is not connected with the external water body, such as the green land, the park, the building area and the like of the city.
With the improvement of the requirements of people on living environment, a large number of closed landscapes are built in China. However, the water body in the closed landscape has the defects of low environmental capacity, poor self-cleaning capability and easy influence by human activities, and easily causes excessive pollutants such as COD, BOD, TN, TP and the like, too fast growth speed of algae, turbid water body with peculiar smell and unpleasant appearance of tourists to lose landscape functions.
Common restoration methods for closed landscape water bodies in the prior art are divided into the following categories:
(1) a physical repair method; the physical repair method has high investment cost, high maintenance cost and large energy consumption, does not control the components of pollutants, and is a method for treating symptoms and root causes.
(2) Chemical methods; the chemical method needs to change chemical agents frequently along with the emergence of drug-resistant algae, and the dosage is increased continuously, the treatment cost is high, and secondary pollution is caused.
(3) Aquatic animal and plant or microorganism repairing method; the aquatic animal and plant and microbe repairing method and the biological ecological technology repairing method have excellent repairing and balancing effect.
(4) A biological ecological technology restoration method; and a biological ecological technology restoration method, which has good restoration balance effect.
However, the repairing method in the prior art cannot perform rapid or autonomous repairing under the influence of severe weather or disastrous weather, is in a passive repairing state, has a long repairing balance period, and even has repairing failure.
The bottom mud of the closed landscape water body has N, P, S and heavy metal and other dynamic dissolution balance, and when the concentration of nutrient substances in the water body is low, the substances in the bottom mud are released, so that the secondary pollution of the water body is caused. The restoration method in the prior art is easy to damage the underwater ecosystem, difficult to ensure the durability of the effect and greatly influenced by wind waves and water flow disturbance.
Therefore, the method controls the release of the bottom mud to control the secondary pollution of the water body, solves the influence of wind waves and water flow disturbance in severe weather or disastrous weather to repair and close the landscape water body in time, and has important significance.
650 million tons of anodized aluminum alloy are produced in China every year, 39 million tons of sulfuric acid are consumed in the oxidation process, 2.6 million tons of oxidized and dissolved aluminum are consumed, 52 hundred million DEG C of electricity is consumed, and 195 million tons of generated anodized waste acid are consumed. According to the prior art treatment method, 31.2 million tons of sodium hydroxide are used for acid neutralization treatment, which not only pays high wastewater treatment cost, but also generates a large amount of waste residues mixed with dangerous components of other processes, the price value of the lost sulfuric acid and aluminum metal exceeds billion yuan, and the waste is very surprised! The development of a good recovery technology of the aluminum alloy anode oxidation waste acid is urgently needed to solve the problems of the prior art and environmental protection.
Disclosure of Invention
The invention provides a circulating system for restoring closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid, which is characterized in that the anodic oxidation waste acid of aluminum alloy is used as a raw material to recover and prepare ammonium vanadium; and the recycled ammonium vanadium byproduct is used for repairing a circulating system of the closed landscape water body containing aquatic animals and plants.
In order to achieve the purpose, the invention adopts the following technical scheme:
a circulation system for repairing a closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid is arranged in the closed landscape water body and comprises a water circulation mechanism and an ammonium vanadium recovery device;
the ammonium vanadium recovery device is arranged close to a production line of an anodic oxidation tank provided with aluminum alloy and is used for recovering ammonium vanadium prepared by anodic oxidation waste acid through chemical reaction;
and the water circulation mechanism uses the ammonium vanadium recovered by the ammonium vanadium recovery device as a water treatment agent to carry out circulating purification treatment on the closed landscape water body, and utilizes the ammonium vanadium to purify the closed landscape water body and adjust the pH value of the closed landscape water body to 5-7.5 in the circulating process.
Preferably, the pH value of the closed landscape water body after being adjusted by adding ammonium vanadium is 5.5-7.
Preferably, the adding frequency of the ammonium vanadium is as follows: the first week is once every two days; every three days for the second to third weeks; once per week for the fourth to eighth weeks; then, the treatment is carried out once every two weeks, and the treatment is changed to once every four weeks until the turbidity is not caused for more than two weeks after the ammonium vanadium is added; and stopping adding the ammonium vanadium until the ammonium vanadium is not turbid for more than four weeks after the ammonium vanadium is added.
Preferably, the water circulation mechanism comprises a spraying device;
the spraying device comprises a spraying pipe and an atomizing spraying head; the spray pipe is arranged in the closed landscape water body and is close to the water surface; the atomizing spray header is arranged on the upper side surface of the spray pipe, a nozzle is upward, and the spray device is used for spraying circulating water containing ammonium vanadium to the closed landscape water body;
the distribution of the atomizing spray headers is from dense to sparse from the edge of the closed landscape water body to the center of the water body.
Preferably, the water circulation mechanism further comprises a circulation device, and the circulation device comprises a circulation tank, a circulation pump and a filter screen;
the circulating tank is arranged in the middle of the closed landscape water body; a feeding port is formed in the top of the circulating tank and used for feeding ammonium vanadium recovered by the ammonium vanadium recovery device; the wall of the circulating tank is provided with a plurality of circulating water inlets, and the circulating water inlets are openings facing the water body and are used for introducing water in the closed landscape water body;
the circulating pump is arranged at the bottom of the circulating tank, an inlet of the circulating pump is communicated with the bottom of the circulating tank, and an outlet of the circulating pump is communicated with the spraying pipe;
the filter screen is installed on the outer side surface of a circulating water inlet of the tank wall of the circulating tank.
Preferably, the water circulation mechanism further comprises a medicament room, the medicament room is arranged on the bank side of the closed landscape water body, and the medicament room comprises a stirring tank and a stirrer;
the stirrer is arranged on the stirring tank, and the stirring tank is provided with a water inlet, an overflow port, a feeding port and a water outlet; the water inlet is positioned at the top of the stirring tank and communicated with the outlet of the circulating pump; the water outlet is positioned at the bottom of the stirring tank and communicated with the feed inlet of the circulating tank; the overflow port is arranged at the top of the stirring tank, is opposite to the water inlet and is positioned below the water inlet, and is communicated with the feed inlet of the circulating tank; the charge door is located the top of agitator tank, the charge door is used for adding the ammonium vanadium that ammonium vanadium recovery unit retrieved.
Preferably, when the pH value of the closed landscape water body is lower than 5.5 or the ammonium vanadium is excessively added, calcium hydroxide is added to neutralize acidity, the pH value of the closed landscape water body is adjusted to 5.5-7, and the generated calcium sulfate precipitate covers the surface of the bottom mud under the closed landscape water body.
Preferably, when the closed landscape water body is unbalanced or the water body becomes turbid due to the influence of environmental factors, ammonium vanadium is added into the circulating system to forcibly purify the closed landscape water body.
Further, the ammonium vanadium recovery device comprises a recovery tank, a filter tank and a filter pump; introducing waste anodic oxidation acid into the recovery tank; adding ammonium sulfate and anodic oxidation spent acid in the filter tank, the anodic oxidation spent acid that contains aluminum sulfate takes place chemical reaction with ammonium sulfate and generates aluminium ammonium sulfate crystallization, and the filtrating after the filtration passes through the anodic oxidation groove retrieval and utilization of the anodic oxidation production line of filter pump income aluminum alloy, and the filter residue is aluminium ammonium sulfate crystallization, makes aluminium ammonium sulfate crystallization be the ammonium vanadium that water circulation mechanism used.
The invention has the beneficial effects that: the invention relates to a circulating system for restoring closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid, which is characterized in that the anodic oxidation waste acid of aluminum alloy is used as a raw material to recover and prepare ammonium vanadium;
and the water circulation mechanism is used for performing water circulation on the closed landscape water body, and ammonium vanadium is used for purifying the closed landscape water body and adjusting the pH value of the water body in the water circulation.
A circulating system for restoring closed landscape water body containing aquatic animals and plants by using ammonium vanadium byproducts recovered from anodic oxidation waste acid in aluminum alloy processing.
The waste liquid is recycled, and the recycled substances are reasonably utilized, so that virtuous cycle can be formed. Not only improves the environment, but also beautifies the environment, and has better comprehensive economic benefit.
Drawings
FIG. 1 is a plan view of an in-park lake installed with the system for restoring a closed landscape water body using ammonium vanadium recovered from anodized waste acid according to an embodiment of the present invention;
FIG. 2 is a schematic view of the water circulation mechanism of the circulation system for restoring closed landscape water using ammonium vanadium recovered from anodized waste acid as described in FIG. 1.
FIG. 3 is a graph showing the effect of ammonium vanadium recovered from the waste acid from anodic oxidation on the repair of a white aluminum hydroxide colloidal passivation film covering the surface of the bottom mud of the water body of the circulation system for closed landscape water body shown in FIG. 1;
FIG. 4 is a diagram illustrating the effect of restoring the ecosystem of symbiotic aquatic animals and plants of the circulation system of a closed landscape water body with ammonium vanadium recovered from anodized waste acid to have an autonomous restoring capability shown in FIG. 1.
Detailed Description
The technical solution of the present invention is further described below with reference to the specific embodiments of fig. 1 to 4.
A circulation system for repairing a closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid is arranged in the closed landscape water body and comprises a water circulation mechanism and an ammonium vanadium recovery device;
the ammonium vanadium recovery device is arranged close to a production line of an anodic oxidation tank provided with aluminum alloy and is used for recovering ammonium vanadium prepared by anodic oxidation waste acid through chemical reaction;
and the water circulation mechanism uses the ammonium vanadium recovered by the ammonium vanadium recovery device as a water treatment agent to carry out circulating purification treatment on the closed landscape water body, and utilizes the ammonium vanadium to purify the closed landscape water body and adjust the pH value of the closed landscape water body to 5-7.5 in the circulating process.
The invention relates to a circulating system for restoring closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid, which is characterized in that the anodic oxidation waste acid of aluminum alloy is used as a raw material to recover and prepare ammonium vanadium;
and the water circulation mechanism is used for performing water circulation on the closed landscape water body, and ammonium vanadium is used for purifying the closed landscape water body and adjusting the pH value of the water body in the water circulation.
The circulating system repairs closed landscape water containing aquatic animals and plants by using ammonium vanadium byproducts recovered from anodic oxidation waste acid in aluminum alloy processing.
The waste liquid is recycled, and the recycled substances are reasonably utilized, so that virtuous cycle can be formed. Not only improves the environment, but also beautifies the environment, and has better comprehensive economic benefit.
Ammonium vanadium is added into the closed landscape water body to purify the water body, so that aluminum hydroxide colloid generated by purification can be deposited and covered on the bottom mud, and endogenous pollution is isolated. The chemical reaction and principle are as follows:
1. ionization of ammonium vanadium to produce aluminum ion
NH4Al(S04)2＝NH4 ++A13++2SO4 2- (1)
2. Hydrolyzing aluminum ion to generate adsorptive aluminum hydroxide colloid
Al3++3H20＝Al(OH)3(colloid) ↓ +3H+ (2)
The ammonium vanadium is ionized to generate aluminum ions which are uniformly distributed in the whole water body, the aluminum ions are hydrolyzed to generate aluminum hydroxide colloid with adsorbability, the aluminum hydroxide gradually flocculates suspended matters or algae in the water body and is gathered and settled on the surface of bottom mud, an even aluminum hydroxide colloid passivation layer is formed on the surface of the bottom mud, the bottom mud is completely covered, and the bottom mud is isolated from N, P, S of the water body and the substance exchange of pollutants such as heavy metals.
After the aluminum ions are hydrolyzed, the pH value of the solution is reduced, after the addition is stopped for a period of time, the pH value can return to more than 6.0, and the formula (2) is a reversible reaction.
The aluminum hydroxide colloid has positive charges, adsorbs suspended particles, blue algae and the like with negative charges in water, and is precipitated together with adsorbed substances to form an aluminum hydroxide colloid layer which is uniformly covered on the surface of the bottom mud.
N, P, S and heavy metals released by the bottom mud to the water body can deteriorate the water body; the aquatic animals stir the sediment to reduce the definition of the water body. The adoption of manual removal or covering of the sediment has huge cost, difficult thorough control of endogenous pollution of the sediment and limited effect.
The aluminum hydroxide colloid generated by the chemical method is adopted to completely cover the bottom mud of the closed landscape water body, so that the period for keeping the water body clear can be greatly prolonged, and the cost for manually removing or covering the bottom mud is reduced.
The aluminum hydroxide colloid is an inorganic substance, cannot be decomposed by bacteria and can be kept for covering for a long time; the aluminum hydroxide colloid flocculate has certain chemical binding force among molecules, and a formed passivation covering layer is not easily stirred by fish schools and is beneficial to keeping the definition of a water body.
The circulating system for repairing the closed landscape water body by using the ammonium vanadium recovered from the anodic oxidation waste acid can assist the closed landscape water body to gradually establish the self-repairing capability of the water body. Has the following beneficial effects:
1. purifying the water body. According to the formula (2), the hydrolyzed aluminum hydroxide colloid adsorbs suspended matters and algae, and is settled to bottom mud and is used for strongly purifying water;
2. isolating endogenous pollution. According to the formula (2), the hydrolyzed aluminum hydroxide colloid flocculate uniformly and comprehensively covers the surface of the bottom sediment to form a passivation layer, so that the pollutant exchange between the water body and the bottom sediment is effectively prevented, and the endogenous pollution is isolated;
3. the fertilizer is provided for aquatic plants in the system, and an autonomous balanced food chain is established in the system. According to the formula (1), ammonium ions are ionized by ammonium vanadium, and belong to ammonia nitrogen pollution exceeding the standard for public water bodies, but the closed landscape water body planted with aquatic plants is a nutrient fertilizer required by the aquatic plants, and the aquatic plants strengthened by fertilization can further strengthen the self-circulation balance capability of the ecological system of the closed landscape.
4. The self-repairing capability of the ecological system of the closed landscape is improved, and economic benefits are generated. The aluminum hydroxide colloid is used for precipitating suspended matters and flocculating algae, so that the water body definition is improved; the ammonium ions are used for nourishing the aquatic plants and strengthening the landscape effect, the growth capacity and the output capacity of the animals and the plants of the ecological system of the closed landscape are improved, the autonomous balance is gradually achieved, the autonomous restoration capacity is obtained, and further the economic benefit is increased.
5. The water treatment agent ammonium vanadium is prepared by recycling anodic oxidation waste acid produced in aluminum alloy processing, waste materials are changed into valuable materials, and the water treatment agent ammonium vanadium has good environmental protection and economic benefits.
The chemical name of ammonium vanadium is aluminum ammonium sulfate, formula NH4Al(SO4)2.12H2O), the appearance is colorless, transparent crystal or white powder, the water solution is slightly soluble in water, and the water solution is weakly acidic.
The aluminum ammonium sulfate is used for processing fermentation powder, fried food, jellyfish pickling, vermicelli processing, fruit and vegetable fresh keeping and crisp keeping, color protection, water purification and environmental protection, disinfection, rubber processing, tanning, washing powder processing, feed processing, pencil manufacturing and the like.
The aluminum ammonium sulfate can be used as food additive, has no toxicity and harm to animals and plants, can be borne by animals and plants in the acid-base range, has strong water purification capability, can kill algae, and takes hydrolysate flocculent aluminum hydroxide as an inorganic substance.
According to the national water discharge standard, the ammonia nitrogen is controlled to be below 10mg/L, and the water body purified by using the ammonium vanadium is limited to a closed water body which is not discharged outside, so that the method is particularly suitable for closing landscape water bodies, such as similar citizen park lakes of the former palace city protection river, the Yuanming garden Fuhai, the Guangzhou floribunda lake and the like. Therefore, a closed landscape water body should be selected as a restoration object.
Preferably, the pH value of the closed landscape water body after being adjusted by adding ammonium vanadium is 5.5-7.
When the pH value is lower than 5, the oxygen content in water is low when the acidity is too high, the aquatic animals and plants are easy to generate an oxygen deficiency phenomenon, and the aquatic animals and plants are difficult to breathe and are easy to die; the photosynthesis of the aquatic plants and the pH value of the microorganisms are suitable to be 5-7.5, the alkali can form insoluble tricalcium phosphate, and the acid can form insoluble iron phosphate and aluminum phosphate to influence the fertilizer efficiency and the growth of the aquatic plants. Therefore, the pH value of the water body is set to be 5.5-7, which is safer and more suitable.
Preferably, the adding frequency of the ammonium vanadium is as follows: the first week is once every two days; every three days for the second to third weeks; once per week for the fourth to eighth weeks; then, the treatment is carried out once every two weeks, and the treatment is changed to once every four weeks until the turbidity is not caused for more than two weeks after the ammonium vanadium is added; and stopping adding the ammonium vanadium until the ammonium vanadium is not turbid for more than four weeks after the ammonium vanadium is added.
The pH value of the water body of the closed landscape ecosystem is adjusted by adding ammonium vanadium, the water body has periodic definition, the passivation film layer of the covered aluminum hydroxide is gradually thickened along with the increase of the times of adding the ammonium vanadium for maintaining the water body, the time period for maintaining the definition of the water body is gradually prolonged, the adding amount of the ammonium vanadium is gradually reduced, the pH value of the water body can be maintained within a proper range, and meanwhile, the closed landscape water body is cultured to establish the self-repairing capability.
Preferably, the water circulation mechanism further comprises a spraying device;
the spraying device comprises a spraying pipe and an atomizing spraying head; the spray pipe is arranged in the closed landscape water body and is close to the water surface; the atomizing spray header is arranged on the upper side surface of the spray pipe, a nozzle is upward, and the spray device is used for spraying circulating water containing ammonium vanadium to the closed landscape water body;
the distribution of the atomizing spray headers is from dense to sparse from the edge of the closed landscape water body to the center of the water body.
In the traditional method, a chemical adding boat is used for manually throwing and adding chemicals, the engineering amount is too large, the chemical adding of a water body is not uniform, the passivation coating of bottom mud is not uniform, and the plant leaf surfaces are easily damaged by the chemicals when the chemicals are manually sprayed; before the aquatic plants grow normally, the water body is anoxic, and the water body needs to be oxygenated and repaired continuously.
As shown in fig. 1 and 2, the artificial lake of the closed landscape is close to tourists, the atomizing spray headers are distributed from the bank of the closed landscape water body to the center of the water body from the dense to the sparse, the concentration of the lake is high when the water treatment agent ammonium vanadium is put in, the purification effect is good, the lake is clearer, and the landscape effect can be enhanced; after the feeding of the water treatment agent ammonium vanadium is stopped, the lake water is continuously circulated, the concentration of the water treatment agent in the water body can be quickly homogenized, and the passivation film on the surface of the bottom mud is more uniform.
The water sprayed by the atomizing spray header can clean the surfaces of the plant leaves, protect the plants, improve the beautifying degree of the landscape and have better economic benefit.
Preferably, the water circulation mechanism further comprises a circulation device, and the circulation device comprises a circulation tank, a circulation pump and a filter screen;
the circulating tank is arranged in the middle of the closed landscape water body; a feeding port is formed in the top of the circulating tank and used for feeding ammonium vanadium recovered by the ammonium vanadium recovery device; the wall of the circulating tank is provided with a plurality of circulating water inlets, and the circulating water inlets are openings facing the water body and are used for introducing water in the closed landscape water body;
the circulating pump is arranged at the bottom of the circulating tank, an inlet of the circulating pump is communicated with the bottom of the circulating tank, and an outlet of the circulating pump is communicated with the spraying pipe;
the filter screen is installed on the outer side surface of a circulating water inlet of the tank wall of the circulating tank.
The water treatment agent ammonium vanadium is put into the circulating tank, the circulating tank is mixed with water of the water body, the circulating pump is conveyed to the spray pipe and sprayed on the surface of the water body from the atomizing spray head, so that more uniform flowing and distribution effects can be obtained, the ammonium vanadium in the whole water body is uniformly distributed, the damage to aquatic animals and plants caused by local overhigh concentration can be avoided, and the oxygenation effect of the water body can be improved.
Adopt circulation device configuration adds the medicine, utilizes circulation device to oxygenate, add the medicine for the water, and the medicament flows to the center of water from the water edge, and water purification and bed mud tectorial membrane are more even, do not leave the dead angle, have better purifying effect.
The filter screen is arranged on the outer side surface of the circulating water inlet of the tank wall of the circulating tank, so that aquatic animals and plants in a water body can be prevented from being sucked into the circulating tank to influence the safe operation of the water circulating mechanism, and the aquatic animals and plants can be prevented from being sucked and injured.
After the concentration of the water treatment agent in the water body is uniform, the circulating pump can be stopped, the generated calcium hydroxide colloid adsorbs impurities and algae, and precipitates on the surface of the bottom mud to generate uniform passivation coating, so that the pollutant exchange between the water body and the bottom mud can be effectively prevented, and the endogenous pollution is isolated.
Preferably, the water circulation mechanism further comprises a medicament room, the medicament room is arranged on the bank side of the closed landscape water body, and the medicament room comprises a stirring tank and a stirrer;
the stirrer is arranged on the stirring tank, and the stirring tank is provided with a water inlet, an overflow port, a feeding port and a water outlet; the water inlet is positioned at the top of the stirring tank and communicated with the outlet of the circulating pump; the water outlet is positioned at the bottom of the stirring tank and communicated with the feed inlet of the circulating tank; the overflow port is arranged at the top of the stirring tank, is opposite to the water inlet and is positioned below the water inlet, and is communicated with the feed inlet of the circulating tank; the charge door is located the top of agitator tank, the charge door is used for adding the ammonium vanadium that ammonium vanadium recovery unit retrieved.
Through the agitator tank and the agitator of the medicament room, the added ammonium vanadium water treatment agent and the water introduced from the water body through the circulating pump are mixed and stirred uniformly and conveyed to the circulating tank, so that the operation is safe and convenient, and the premixing effect can be improved.
Preferably, when the pH value of the closed landscape water body is lower than 5.5 or the ammonium vanadium is excessively added, calcium hydroxide is added to neutralize acidity, the pH value of the closed landscape water body is adjusted to 5.5-7, and the generated calcium sulfate precipitate covers the surface of the bottom mud under the closed landscape water body.
When the pH value is lower than 5, the acidity is too high, the oxygen content in water is low, the aquatic animals and plants are easy to generate an oxygen deficiency phenomenon, and the aquatic animals and plants are difficult to breathe and are easy to die; therefore, when the pH value of the water body is found to be lower than 5, calcium hydroxide is rapidly added, and the pH value is adjusted to be about 7.0 so as to protect animals and plants in the water body.
The acidity of the ammonium vanadium can be neutralized by adding calcium hydroxide, and the sulfate radical is consumed, and the chemical reaction formula is as follows
2Ca(OH)2+2SO4 2-＝2CaSO4↓+H2O+O2 (3)
The generated calcium sulfate precipitate covers the surface of the bottom mud, and the antifouling and isolating effects on the bottom mud can be enhanced.
Preferably, when the closed landscape water body is unbalanced or the water body becomes turbid due to the influence of environmental factors, ammonium vanadium is added into the circulating system to forcibly purify the closed landscape water body.
When the polluted substances are cleaned under the influence of weather, rainwater or blue algae outbreak and the like, the closed landscape water body is restored only by the symbiotic system of the water body, the aquatic plants and the aquatic animals, the definition is limited, the time is long, and a plurality of aquatic plants and aquatic animals die in the period.
By actively adding ammonium vanadium, the pH value of the water body can be quickly restored to a normal range value, the death of aquatic animals and plants can be reduced, and the establishment of new balance of an ecological system of the closed landscape water body is assisted.
The blue algae forms air bags to float out of the water surface and rapidly propagate under the conditions of high pH value, strong illuminance and long time of the water body at the temperature of more than 20 ℃, so that the phenomenon of blue algae bloom is formed. The cyanobacterial bloom mostly occurs in summer for 6-9 months, has obvious seasonality and is influenced by temperature, sunlight and nutrient substances.
The mass propagation of blue algae deteriorates ventilation and illumination in water, leads to the growth and propagation of plankton in water to lack oxygen, hinders the photosynthesis of algae, reduces the living space of aquatic animals and plants, and leads to the mass death of the aquatic animals and plants.
Further, the ammonium vanadium recovery device comprises a recovery tank, a filter tank and a filter pump; introducing waste anodic oxidation acid into the recovery tank; adding ammonium sulfate and anodic oxidation spent acid in the filter tank, the anodic oxidation spent acid that contains aluminum sulfate takes place chemical reaction with ammonium sulfate and generates aluminium ammonium sulfate crystallization, and the filtrating after the filtration passes through the anodic oxidation groove retrieval and utilization of the anodic oxidation production line of filter pump income aluminum alloy, and the filter residue is aluminium ammonium sulfate crystallization, makes aluminium ammonium sulfate crystallization be the ammonium vanadium that water circulation mechanism used.
When the aluminum alloy is oxidized in the anodic oxidation solution, the chemical reaction is carried out according to the following formula (4), partial oxidation film of the aluminum alloy is dissolved, the aluminum on the surface of the aluminum alloy is dissolved in the anodic oxidation solution to generate aluminum sulfate, and the following chemical reaction (5) is carried out by adding ammonium sulfate into the anodic oxidation solution containing aluminum sulfate;
Al2O3+3H+＝2Al3++3OH- (4)
Al2(SO4)3+(NH4)2SO4+12H2O＝2NH4Al(SO4)2·12H2O↓ (5)
for every ton of anodized aluminum alloy, nearly 66.8Kg of ammonium vanadium can be recovered.
According to the circulation system for repairing the closed landscape water body by using the ammonium vanadium recovered by the anodic oxidation waste acid, the aluminum sulfate in the anodic oxidation liquid of the aluminum alloy is recovered by the ammonium vanadium recovery device, and the recovered aluminum ammonium sulfate is crystallized, namely the ammonium vanadium is used for the water circulation mechanism as a water treatment agent, so that the problem of environment-friendly recovery of an anodic oxidation production line of the aluminum alloy is solved, the environment is beautified, and double economic benefits are obtained. A kind of
Examples
1. And selecting a closed landscape water body of the live-action land. In the Guangdong Foshan area, a 30 mu park internal lake is selected in 11 months, no domestic sewage and industrial sewage are discharged into the internal lake, and rainwater is supplied to the internal lake through green land. The central water depth of the internal lake is 3m, the average water depth is 1m, the average bottom sediment thickness is 30cm, and the total depth is 20000m3A body of water, as shown in figure 1. The inner lake has a ring lake sightseeing cement road, the north side is provided with a hydrophilic square, and the west side is provided with a fish feeding pavilion. A great amount of fishes such as tilapia, scavenger fish, clarias fuscus and the like and a small amount of aquatic plants are in the lake; lake waterSlightly black, having peculiar smell, turbidity and extremely poor visibility.
2. The water circulation mechanism is installed as shown in fig. 1 and 2.
The pharmacy is built at east of the inland lake and is provided with 10m3A water inlet of the stirring tank is connected with the lake edge spraying pipe, and a water outlet at the bottom of the stirring tank is connected with the lake center circulating tank; the center of the internal lake is provided with 10m3The circulating tank is made of aluminum alloy, a circulating water inlet for introducing lake water is formed by drilling holes on the wall of the circulating tank, a stainless steel filter screen is sleeved outside the circulating tank, the top of the circulating tank is communicated with a stirrer drain pipe of a pharmacy, and the bottom of the circulating tank is connected with a circulating pump; the outlet of the circulating pump is connected with a cross joint, the cross joint is connected with four sets of aluminum alloy spray pipes around the periphery of the inner lake, south and north of the lake by steel wire hoses, each set of aluminum alloy spray pipe is supported by an aluminum alloy support and is 50cm away from the water surface, the upper surface of the water pipe is arched and perforated at intervals of 50cm, and an atomizing spray head is installed to project spray upwards.
3. The circulation system for restoring the closed landscape water body by using the ammonium vanadium recovered by the anodic oxidation waste acid restores the capabilities of self-purification and water body pH value adjustment of the closed landscape water body by adding the ammonium vanadium, and has the following operation steps:
s1, thoroughly removing aquatic animals including various fishes in a closed landscape water body to be restored;
s2, transplanting the local aquatic plants, and culturing for 6 months;
s3, feeding local aquatic animals, mainly feeding surface fishes for 2 months;
s4, installing a water circulation mechanism shown in the figure 1;
s5, starting a water circulation mechanism, circulating the water body, oxygenating, adding medicine and purifying the water body, and generating a passivation coating on the surface of the sediment of the closed landscape water body, wherein the method comprises the following steps:
(1) circulating lake water: starting a circulating pump, leading water flow to enter the circulating pump from a circulating tank, upwards projecting and spraying by the lake edge of the aluminum alloy spray pipe ring, and oxygenating water; the water flow flows from the edge of the lake to the center of the lake and enters the circulating tank through the filter screen to complete water circulation. Keeping the circulating pump running and continuously oxygenating the lake water;
(2) adding and dissolving ammonium vanadium, purifying the water body, and generating a passivation coating on the surface of the bottom mud of the closed landscape water body: according to the total volume of the water body, ammonium vanadium purified water is added according to the concentration of 0.1g/L, and about 2 tons of ammonium vanadium is added into 30 mu of internal lake of the closed landscape water body and the total amount of lake water is about 20000 tons. Opening valves F1 and F3, closing a valve F2, injecting lake water into the stirring tank to an overflow pipe for outflow, and allowing the lake water carrying ammonium vanadium to enter a circulating tank through a valve F3; and starting a circulating pump, injecting lake water carrying ammonium vanadium into the circulating tank, adding while circulating, and detecting the pH value of the lake water. After the addition of the circulation tank is completed, a valve F2 is opened, the residual ammonium vanadium solution in the stirring tank flows into the circulation tank completely, and the stirrer is closed. And continuously circulating the lake water for 6 hours, detecting the pH value of the lake water, and ensuring that the pH value of the water body is 5.5-7 and is in a safe range for the survival of plants and fishes after each addition is finished. The circulating pump is closed, precipitation is carried out for 24 hours, and the lake water is clear and shows the bottom. If human error occurs and the pH value is less than 5.5, timely adding calcium hydroxide to restore the pH value to 5.5-7.0 to protect aquatic animals and plants;
(3) and maintaining the water body. After each addition of the agent, the clarity of the lake water is slowly increased until the lake water is completely clear, the lake water is gradually turbid after a period of time, about two days, and the bottom mud is basically invisible. Repeating the process (2), adding ammonium vanadium according to the concentration of 0.1g/L and circularly treating the lake water, wherein the lake water is recovered to be clear and has a bottom, as shown in figure 3; during the period, ammonium vanadium is added according to the same standard, and the frequency of adding ammonium vanadium is as follows: every two days in the first week; every three days for the second to third weeks; once every week from fourth to eighth week, the water body keeps periodic definition and the pH value of the water body is kept between 5.5 and 7;
(4) and repeatedly maintaining the water body. When the water body is turbid again, repeating the process (3), forcing the lake water to become clear, continuously thickening the aluminum hydroxide flocculation layer on the surface of the bottom sediment along with the increase of the times of adding ammonium vanadium, gradually prolonging the maintenance period, observing the growth condition of the bottom sediment passivation coating of the landscape water body to be sealed, and achieving the effect of isolating the endogenous pollution of the bottom sediment when an obvious white aluminum hydroxide precipitation passivation film layer appears on the surface of the bottom sediment;
(5) when the time for maintaining the definition of the water body exceeds one week, the adding frequency of ammonium vanadium can be reduced to once every two weeks; after four weeks, adjusting the adding frequency of ammonium vanadium to be once every four weeks; after about half a year, the lake water, the aquatic plants and the aquatic animals form an autonomous circulation purification system, virtuous cycle is realized, ammonium vanadium is not added basically, and the lake water is kept clear and is seen at the bottom for a long time, as shown in figure 4.
(6) After rainstorm, when a large amount of mud flows into lake water, adding the medicament according to the flow (3) to maintain the definition of the water body.
As shown in fig. 1 and 2, the circulation system for repairing the closed landscape water body by using the ammonium vanadium recovered from the anodic oxidation waste acid has the following advantages:
(1) the medicine is convenient to add. For a large water surface of 30 mu, the ammonium vanadium solution is sprayed by a chemical adding boat, the engineering quantity is too large and uneven, and the ammonium vanadium solution which is not diluted enough is sprayed to the leaf surfaces of the aquatic plants, so that the damage is easily caused. The water is added by a water circulation system, so that the uniformity is realized, and the leaf surfaces of the aquatic plants are protected; the ammonium vanadium solution is sprayed out from a spray head of the aluminum alloy spray pipe around the lake in an atomizing mode, the concentration of the ammonium vanadium at the edge of the lake is high, the concentration of the ammonium vanadium at the center of the lake is low, the ammonium vanadium is distributed in a gradient mode, the water purifying effect around the lake is enhanced, and the water body is clear and visible, so that the aesthetic feeling is brought to people; after the dosing is finished, the circulating pump continues to work, the plant leaf surfaces close to the spray head are cleaned, and the ammonium-vanadium concentration of the water body is uniform.
(2) The oxygenation is rapid. The landscape water body is usually dead water, the water body does not flow, the oxygen content is low, anaerobic bacteria propagation is facilitated, sulfides and the like are decomposed, the water body is blackened and smelled, and the preferred repair method is oxygenation. The invention is provided with an atomizing spray head, and the atomizing spray head is projected upwards at a position 50cm away from the water surface, so that the dissolved oxygen is increased to the maximum extent, and the oxygen can be quickly reoxidized.
(3) The water circulation is fully and uniformly. The invention arranges an aluminum alloy spray pipe along the periphery of the lake, after the water flow is upwards projected, sprayed and oxygenated, the water flow flows to the center of the lake from the edge of the lake, is filtered by a filter screen, enters a circulating tank, is mixed with ammonium vanadium solution fed by a stirring tank, is pumped into a lake-surrounding aluminum alloy spray pipe by a circulating pump to complete water circulation, the water body flows to the center of the lake from the periphery, and is completed by adding medicine, oxygenating and covering bottom mud through water circulation at one time without dead corners.
In conclusion, the circulation system for restoring the closed landscape water body by using the ammonium vanadium recovered from the anodic oxidation waste acid purifies the ecology of the closed landscape water body by adding the ammonium vanadium, the period time for keeping the definition of the water body is gradually prolonged by periodically adding the ammonium vanadium, a passivation film layer of aluminum hydroxide covering bottom mud is formed, the pH value of the water body is gradually reduced within the range suitable for the growth of aquatic animals and plants by the addition of the ammonium vanadium, the ecological system for restoring the closed landscape water body is cultured to establish the self-restoration capability, and the effect is obvious.
The water circulation mechanism of the circulation system for repairing the closed landscape water body by using the ammonium vanadium recovered from the anodic oxidation waste acid is convenient to operate, the water circulation is sufficient and uniform, no dead angle exists, and the aquatic animals and plants of the closed landscape water body can be rapidly oxygenated.
The circulation system for repairing the closed landscape water body by using the ammonium vanadium recovered by the anodic oxidation waste acid not only recovers the waste liquid, but also reasonably utilizes the recovered substances, and can form virtuous cycle. Not only improves the environment, but also beautifies the environment, and has better comprehensive economic benefit.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. A circulation system for repairing a closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid is arranged in the closed landscape water body and is characterized by comprising a water circulation mechanism and an ammonium vanadium recovery device;
the ammonium vanadium recovery device is arranged close to a production line of an anodic oxidation tank provided with aluminum alloy and is used for recovering ammonium vanadium prepared by anodic oxidation waste acid through chemical reaction;
and the water circulation mechanism uses the ammonium vanadium recovered by the ammonium vanadium recovery device as a water treatment agent to carry out circulating purification treatment on the closed landscape water body, and utilizes the ammonium vanadium to purify the closed landscape water body and adjust the pH value of the closed landscape water body to 5-7.5 in the circulating process.
2. The circulation system for restoring closed landscape water body by ammonium vanadium recovered from anodic oxidation waste acid according to claim 1, wherein the pH value of the closed landscape water body after the ammonium vanadium is added for adjustment is 5.5-7.
3. The circulation system for restoring closed landscape water body by ammonium vanadium recovered from anodic oxidation waste acid according to claim 2, wherein the addition frequency of ammonium vanadium is: the first week is once every two days; every three days for the second to third weeks; once per week for the fourth to eighth weeks; then, the treatment is carried out once every two weeks, and the treatment is changed to once every four weeks until the turbidity is not caused for more than two weeks after the ammonium vanadium is added; and stopping adding the ammonium vanadium until the ammonium vanadium is not turbid for more than four weeks after the ammonium vanadium is added.
4. The circulation system for restoring closed landscape water bodies with ammonium vanadium recovered from anodized waste acid according to claim 3, wherein the water circulation mechanism comprises a spray device;
the spraying device comprises a spraying pipe and an atomizing spraying head; the spray pipe is arranged in the closed landscape water body and is close to the water surface; the atomizing spray header is arranged on the upper side surface of the spray pipe, a nozzle is upward, and the spray device is used for spraying circulating water containing ammonium vanadium to the closed landscape water body;
the distribution of the atomizing spray headers is from dense to sparse from the edge of the closed landscape water body to the center of the water body.
5. The circulation system for restoring closed landscape water body by ammonium vanadium recovered from anodic oxidation waste acid according to claim 4, wherein the water circulation mechanism further comprises a circulation device, and the circulation device comprises a circulation tank, a circulation pump and a filter screen;
the circulating tank is arranged in the middle of the closed landscape water body; a feeding port is formed in the top of the circulating tank and used for feeding ammonium vanadium recovered by the ammonium vanadium recovery device; the wall of the circulating tank is provided with a plurality of circulating water inlets, and the circulating water inlets are openings facing the water body and are used for introducing water in the closed landscape water body;
the circulating pump is arranged at the bottom of the circulating tank, an inlet of the circulating pump is communicated with the bottom of the circulating tank, and an outlet of the circulating pump is communicated with the spraying pipe;
the filter screen is installed on the outer side surface of a circulating water inlet of the tank wall of the circulating tank.
6. The circulation system for restoring closed landscape water body by ammonium vanadium recovered from anodic oxidation waste acid according to claim 5, wherein the water circulation mechanism further comprises a chemical room, the chemical room is arranged at the bank of the closed landscape water body, and the chemical room comprises a stirring tank and a stirrer;
the stirrer is arranged on the stirring tank, and the stirring tank is provided with a water inlet, an overflow port, a feeding port and a water outlet; the water inlet is positioned at the top of the stirring tank and communicated with the outlet of the circulating pump; the water outlet is positioned at the bottom of the stirring tank and communicated with the feed inlet of the circulating tank; the overflow port is arranged at the top of the stirring tank, is opposite to the water inlet and is positioned below the water inlet, and is communicated with the feed inlet of the circulating tank; the charge door is located the top of agitator tank, the charge door is used for adding the ammonium vanadium that ammonium vanadium recovery unit retrieved.
7. The circulation system for restoring the closed landscape water body by using the ammonium vanadium recovered from the anodic oxidation waste acid, according to claim 6, is characterized in that when the pH value of the closed landscape water body is lower than 5.5 or the ammonium vanadium is excessively added, calcium hydroxide is added to neutralize acidity, the pH value of the closed landscape water body is adjusted to 5.5-7, and the generated calcium sulfate precipitate covers the surface of bottom mud under the closed landscape water body.
8. The circulation system for restoring the closed landscape water body by using the ammonium vanadium recovered from the anodic oxidation waste acid, according to claim 7, is characterized in that when the closed landscape water body is unbalanced or becomes turbid due to the influence of environmental factors, the ammonium vanadium is added into the circulation system to forcibly purify the closed landscape water body.
9. The circulation system for restoring closed landscape water body by ammonium vanadium recovered from anodic oxidation waste acid according to claim 1, wherein the ammonium vanadium recovery device comprises a recovery tank, a filter tank and a filter pump; introducing waste anodic oxidation acid into the recovery tank; adding ammonium sulfate and anodic oxidation spent acid in the filter tank, the anodic oxidation spent acid that contains aluminum sulfate takes place chemical reaction with ammonium sulfate and generates aluminium ammonium sulfate crystallization, and the filtrating after the filtration passes through the anodic oxidation groove retrieval and utilization of the anodic oxidation production line of filter pump income aluminum alloy, and the filter residue is aluminium ammonium sulfate crystallization, makes aluminium ammonium sulfate crystallization be the ammonium vanadium that water circulation mechanism used.
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| CN202011311457.6A Pending CN112499895A (en) | 2020-11-20 | 2020-11-20 | Circulation system for repairing closed landscape water body by using ammonium vanadium recovered from anodic oxidation waste acid |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911651A (en) * | 2014-03-28 | 2014-07-09 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Process for recovering aluminum ions and sulfuric acid from aluminum alloy anodic oxidation tank |
| CN106865640A (en) * | 2017-02-17 | 2017-06-20 | 重庆鑫乡科技有限公司 | A kind of method and water purification system for improving landscape water body transparency |
| CN110357231A (en) * | 2019-06-10 | 2019-10-22 | 惠州易晖光电材料股份有限公司 | Plastic microsphere wastewater treatment recovery method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103911651A (en) * | 2014-03-28 | 2014-07-09 | 佛山市三水雄鹰铝表面技术创新中心有限公司 | Process for recovering aluminum ions and sulfuric acid from aluminum alloy anodic oxidation tank |
| CN106865640A (en) * | 2017-02-17 | 2017-06-20 | 重庆鑫乡科技有限公司 | A kind of method and water purification system for improving landscape water body transparency |
| CN110357231A (en) * | 2019-06-10 | 2019-10-22 | 惠州易晖光电材料股份有限公司 | Plastic microsphere wastewater treatment recovery method |
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