CN113371925A - River and lake treatment and restoration method - Google Patents
River and lake treatment and restoration method Download PDFInfo
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- CN113371925A CN113371925A CN202110473613.7A CN202110473613A CN113371925A CN 113371925 A CN113371925 A CN 113371925A CN 202110473613 A CN202110473613 A CN 202110473613A CN 113371925 A CN113371925 A CN 113371925A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 238000005273 aeration Methods 0.000 claims abstract description 15
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 12
- 239000011574 phosphorus Substances 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims abstract description 12
- 239000008394 flocculating agent Substances 0.000 claims abstract description 10
- 238000000746 purification Methods 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000002351 wastewater Substances 0.000 claims abstract description 7
- 241001464837 Viridiplantae Species 0.000 claims abstract description 5
- 239000010840 domestic wastewater Substances 0.000 claims abstract description 5
- 239000010842 industrial wastewater Substances 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 239000010802 sludge Substances 0.000 claims description 15
- 241000196324 Embryophyta Species 0.000 claims description 14
- 244000025254 Cannabis sativa Species 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 10
- 239000013049 sediment Substances 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 10
- 241000189662 Calla Species 0.000 claims description 9
- 244000211187 Lepidium sativum Species 0.000 claims description 8
- 235000007849 Lepidium sativum Nutrition 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 244000025670 Eleusine indica Species 0.000 claims description 5
- 235000014716 Eleusine indica Nutrition 0.000 claims description 5
- 102000004190 Enzymes Human genes 0.000 claims description 5
- 108090000790 Enzymes Proteins 0.000 claims description 5
- 241000108664 Nitrobacteria Species 0.000 claims description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims description 5
- 238000005276 aerator Methods 0.000 claims description 5
- 241001148470 aerobic bacillus Species 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 239000003344 environmental pollutant Substances 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 230000033116 oxidation-reduction process Effects 0.000 claims description 5
- 238000006213 oxygenation reaction Methods 0.000 claims description 5
- 231100000719 pollutant Toxicity 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 241000938542 Oenanthe aquatica Species 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 235000017879 Nasturtium officinale Nutrition 0.000 description 1
- 240000005407 Nasturtium officinale Species 0.000 description 1
- 244000207867 Pistia stratiotes Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Classifications
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- 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
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- 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
- C02F3/02—Aerobic processes
-
- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Abstract
The invention discloses a method for treating and repairing watercourses and lakes, which comprises the following raw materials and equipment: the system comprises dredging equipment, a flocculating agent, aeration equipment, bottom mud dredging equipment, an ozone generator, a water culture plant group, yard treatment, an emergency chemical dosing device, an oxidation pond, a sewage treatment device and a treatment pond, wherein the sewage treatment device is constructed upstream of a river channel and lake water source, industrial wastewater, domestic wastewater and harmful wastewater are deeply filtered and purified by the ozone generator to eliminate peculiar smell of the water source, the filtered water source flows to the constructed oxidation pond, nitrogen and phosphorus in the water body are effectively removed by utilizing the purification function of green plants, impurities in a water source riverbed and the water source are removed by the dredging equipment, and riverbed mud is dug away by the bottom mud dredging equipment and conveyed through a pipeline; the invention has the advantages of low repairing and treating cost, high water quality purifying efficiency, self-supporting improvement of the river bed in the lake bottom river bottom environment, and avoidance of secondary pollution caused by repairing the river bed.
Description
Technical Field
The invention relates to the technical field of riverways and lakes, in particular to a riverway and lake treatment and restoration method.
Background
The current lake pollution situation in China is very severe, so that an economic, effective and feasible scheme is determined according to each own hydrological feature, meteorological feature and geographical position of five fresh water lakes or other lakes. The lake ecological restoration technology in japan is advanced, and it is in lake management in many developing countries;
in the prior river and lake technology, the repair and treatment cost is high, the water quality purification efficiency is low, the river bed in the river bottom environment at the lake bottom cannot be thoroughly improved, and secondary pollution is easily caused by large-scale repair of the river bed; therefore, a method for treating and repairing rivers and lakes is more needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a riverway and lake treatment and restoration method, has the advantages of low restoration and restoration cost, high water purification efficiency, self-support improvement of the riverbed in the river bottom environment at the lake bottom, restoration of the riverbed and avoidance of secondary pollution, and solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a river and lake treatment and restoration method, wherein the raw materials and equipment comprise: dredging equipment, a flocculating agent, aeration equipment, bottom mud conveying and digging equipment, an ozone generator, a water culture plant group, yard treatment, an emergency dosing device, an oxidation pond, a sewage treatment device and a treatment pond.
The treatment and repair method comprises the following steps:
(1) a sewage treatment device is constructed upstream of the water sources of the river channel and the lake, and industrial wastewater, domestic wastewater and harmful wastewater are deeply filtered and purified by an ozone generator to eliminate the peculiar smell of the water sources;
(2) flowing the filtered water source to a constructed oxidation pond, and effectively removing nitrogen and phosphorus in the water body by utilizing the purification function of green plants;
(3) removing impurities in a water source riverbed and a water source by adopting desilting equipment;
(4) the sediment conveying and excavating equipment excavates the riverbed sludge away and conveys the riverbed sludge through a pipeline;
(5) conveying the river bed sludge into a treatment tank, and adding a flocculating agent for mixing treatment;
(6) the storage yard treatment adopts measures such as storage yard seepage prevention, storage yard grass planting, sand throwing covering method and the like to prevent the generation of secondary pollution;
(7) the emergency dosing device puts PAC into the slurry to be fully mixed and deposited, and then the PAC is directly discharged back to rivers and lakes to build a new riverbed;
(8) the aeration equipment is arranged at the bottom of a river channel and a lake to generate strong axial thrust and radial stirring force, sucked air is crushed into fine bubbles, steam-water combined body is injected into water strongly for oxygenation treatment, black and odor of bottom mud disappear, the bottom mud is changed into gray, and the bottom mud gradually develops towards the direction of normal local soil;
(9) the hydroponic plant group is planted by selecting a plurality of cress and calla mixed on a river and lake water source.
Preferably, the oxidation pond (1) is provided with a nitrogen sensor and a phosphorus sensor for detecting the water source content value in real time.
Preferably, the aeration equipment (8) adopts a subsurface flow plug flow aerator so that the oxidation-reduction potential value is between 400 and 600 mv.
Preferably, the anti-seepage treatment (6) is to lay a composite geomembrane on one side of the polluted sediment, and build a soil textile bag on the membrane; the hand-operated seeder is adopted to broadcast grass seeds for fast grass planting, so that secondary pollution of pollutants in bottom mud of the yard to the surrounding environment due to rainwater flushing can be prevented, and the landscape of the yard can be quickly recovered; and dredging polluted bottom mud for 2.0m, treating the residual polluted bottom mud by using a covering method, and throwing coarse sand with the thickness of 0.5 m.
Preferably, the complex enzyme, the aerobic bacteria and the nitrobacteria can be added into the new river bed material to decompose the organic matter and convert the ammonia nitrogen into nitrate nitrogen in the step (7).
Preferably, a layer of biological film is attached to the roots and stems of the cress and calla plants of the hydroponic plant group (9).
The parts not involved in the invention are the same as or can be realized by the prior art.
Compared with the prior art, the invention has the following beneficial effects:
1. the river and lake treatment and restoration method is characterized in that waste water is conveniently collected through a sewage treatment device, an ozone generator is convenient for eliminating peculiar smell of a water source, the water source eliminates nitrogen and phosphorus in the flowing direction of an oxidation pond, a dredging device is convenient for eliminating impurities of the water source, a bottom mud conveying and digging device is convenient for digging and moving riverbed sludge, a treatment tank is convenient for processing the riverbed sludge to remove harmful substances, PAC is put into slurry through an emergency chemical dosing device to be fully mixed and precipitated, and then the slurry is directly discharged back to a lake to build a new riverbed, complex enzyme, aerobic bacteria and nitrobacteria can be added into the new riverbed to decompose organic matters, ammonia nitrogen is converted into nitrate nitrogen to facilitate the automatic restoration of the new riverbed, time and labor are saved, an aeration device is arranged at the bottoms of the river and the lake to generate strong axial thrust and radial stirring force, air is crushed into fine bubbles, and a steam-water complex is strongly injected into water to carry out oxygenation treatment, the aeration equipment adopts a subsurface flow plug flow aerator to enable the oxidation-reduction potential value to be between 400 mv and 600mv, so that the black and odorous bottom sediment disappears, the bottom sediment becomes grey, the bottom sediment gradually develops towards the direction of local normal soil, meanwhile, a hydroponic plant group is planted by selecting various cress and calla in a mixed manner on a river and lake water source, the roots and stems of the cress and calla in which the hydroponic plant group is located are both attached with a layer of biological film, the formation of an ecological system in the water source is effectively increased, and the cost is saved more.
2. The river channel and lake treatment and restoration method comprises the steps of conveying river bed sludge into a treatment tank, adding a flocculating agent for mixing treatment, preventing secondary pollution by adopting measures such as yard seepage prevention, yard grass planting, sand throwing covering method and the like in yard treatment, wherein the seepage prevention treatment is to lay a composite geomembrane on one side of a polluted substrate sludge in contact with the polluted substrate sludge, and building soil-filled textile bags on the geomembrane; the hand-operated seeder is adopted to broadcast grass seeds for fast grass planting, so that secondary pollution of pollutants in bottom mud of the yard to the surrounding environment due to rainwater flushing can be prevented, and the landscape of the yard can be quickly recovered; after the polluted bottom mud is dredged for 2.0m, the residual polluted bottom mud is treated by a covering method, coarse sand with the thickness of 0.5m is thrown, and secondary pollution is effectively prevented.
Detailed Description
The present invention will be further described with reference to specific embodiments, which will become apparent from the following description, but are intended to be exemplary only, and not limiting as to the scope of the invention, it will be understood by those skilled in the art that changes in detail and modifications of form and detail may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are within the scope of the invention.
Example 1
A river and lake treatment and restoration method comprises the following raw materials and equipment: dredging equipment, a flocculating agent, aeration equipment, bottom mud conveying and digging equipment, an ozone generator, a water culture plant group, yard treatment, an emergency dosing device, an oxidation pond, a sewage treatment device and a treatment pond.
The treatment and repair method comprises the following steps:
(1) a sewage treatment device is constructed upstream of the water sources of the river channel and the lake, and industrial wastewater, domestic wastewater and harmful wastewater are deeply filtered and purified by an ozone generator to eliminate the peculiar smell of the water sources;
(2) flowing the filtered water source to a constructed oxidation pond, and effectively removing nitrogen and phosphorus in the water body by utilizing the purification function of green plants;
(3) removing impurities in a water source riverbed and a water source by adopting desilting equipment;
(4) the sediment conveying and excavating equipment excavates the riverbed sludge away and conveys the riverbed sludge through a pipeline;
(5) and conveying the river bed sludge into a treatment tank, and adding a flocculating agent for mixing treatment.
(1) The oxidation pond is provided with a nitrogen sensor and a phosphorus sensor for detecting the water source content value in real time; through the construction sewage treatment plant that swims out on river course lake water source, conveniently collect waste water, ozone generator conveniently eliminates the peculiar smell to the water source, and nitrogen and phosphorus are eliminated through the oxidation pond flow direction in the water source, and the desilting equipment is convenient to clear away water source impurity, and sediment is failed to dig equipment and is convenient to dig the removal to riverbed silt, and the processing pond is convenient to be processed and is got rid of harmful substance to riverbed silt.
Example 2
A river and lake treatment and restoration method comprises the following raw materials and equipment: dredging equipment, a flocculating agent, aeration equipment, bottom mud conveying and digging equipment, an ozone generator, a water culture plant group, yard treatment, an emergency dosing device, an oxidation pond, a sewage treatment device and a treatment pond.
The treatment and repair method comprises the following steps:
(6) the storage yard treatment adopts measures such as storage yard seepage prevention, storage yard grass planting, sand throwing covering method and the like to prevent the generation of secondary pollution;
(7) the emergency dosing device puts PAC into the slurry to be fully mixed and deposited, and then the PAC is directly discharged back to rivers and lakes to build a new riverbed;
(8) the aeration equipment is arranged at the bottom of a river channel and a lake to generate strong axial thrust and radial stirring force, sucked air is crushed into fine bubbles, steam-water combined body is injected into water strongly for oxygenation treatment, black and odor of bottom mud disappear, the bottom mud is changed into gray, and the bottom mud gradually develops towards the direction of normal local soil;
(9) the hydroponic plant group is planted by selecting a plurality of cress and calla mixed on a river and lake water source.
(1) The oxidation pond is provided with a nitrogen and phosphorus sensor for detecting the water source content value in real time, (8) the aeration equipment adopts a subsurface flow plug flow aerator to ensure that the oxidation-reduction potential value is between 400 and 600mv, (6) the anti-seepage treatment is to lay a composite geomembrane on the contact side of the polluted sediment, and build soil-filled textile bags on the geomembrane; the hand-operated seeder is adopted to broadcast grass seeds for fast grass planting, so that secondary pollution of pollutants in bottom mud of the yard to the surrounding environment due to rainwater flushing can be prevented, and the landscape of the yard can be quickly recovered; dredging polluted bottom mud for 2.0m, then treating the residual polluted bottom mud by adopting a covering method, throwing coarse sand with the thickness of 0.5m, (7) adding compound enzyme, aerobic bacteria and nitrobacteria into a new river bed material to decompose organic matters, and converting ammonia nitrogen into nitrate nitrogen, (9) attaching a layer of biological film to roots and stems of cress and calla plants of hydroponic plant groups; the storage yard treatment adopts the sludge in the three schemes to carry out protection treatment, the emergency chemical feeding device is convenient to add chemical components into the riverbed to purify water sources, and the aeration equipment is convenient to increase the oxygen content of the water sources.
To sum up: the invention relates to a method for treating and restoring river and lake, which comprises the steps of firstly, building a sewage treatment device upstream of a river and lake water source, deeply filtering and purifying industrial wastewater, domestic wastewater and harmful wastewater by an ozone generator to eliminate the peculiar smell of the water source, arranging a nitrogen and phosphorus sensor in an oxidation pond to detect whether the water source content value reaches the standard or not in real time to discharge the water source, flowing the filtered water source to the built oxidation pond, effectively removing nitrogen and phosphorus in the water body by utilizing the purification function of green plants, removing impurities in a water source riverbed and the water source by adopting silt removing equipment, excavating riverbed silt by adopting bottom silt conveying and excavating equipment through a pipeline to convey the riverbed silt, conveying the riverbed silt into a treatment tank, adding a flocculating agent to carry out mixing treatment, adopting the measures of yard seepage prevention, yard grass planting, sand throwing covering method and the like to prevent the generation of secondary pollution, the anti-seepage treatment is to lay a composite geomembrane on one side of the polluted sediment, and build a soil-filled textile bag on the geomembrane; the hand-operated seeder is adopted to broadcast grass seeds for fast grass planting, so that secondary pollution of pollutants in bottom mud of the yard to the surrounding environment due to rainwater flushing can be prevented, and the landscape of the yard can be quickly recovered; dredging polluted bottom mud for 2.0m, disposing the residual polluted bottom mud by a covering method, throwing coarse sand with the thickness of 0.5m, putting PAC into the slurry by an emergency dosing device, fully mixing, precipitating, directly discharging back into rivers and lakes to build a new riverbed, adding complex enzyme, aerobic bacteria and nitrobacteria into the new riverbed to decompose organic matters, converting ammonia nitrogen into nitrate nitrogen to facilitate the automatic restoration of the new riverbed, saving more time and labor, arranging aeration equipment at the bottoms of the rivers and lakes to generate strong axial thrust and radial stirring force, crushing sucked air into fine bubbles, forcibly injecting steam-water aggregates into water to perform oxygenation treatment, adopting a subsurface flow plug flow aerator to enable the oxidation-reduction potential value to be between 400 and 600mv, enabling the black and odor of the bottom mud to disappear, enabling the bottom mud to become gray, gradually developing towards the local normal soil direction, and simultaneously selecting various mixed water cress and water lettuce species on the water source of the rivers and lakes to plant, the roots and stems of cress and calla plants in the hydroponic plant group are both attached with a layer of biological film, so that the formation of an ecological system in a water source is effectively increased, and the method has the advantages of low restoration and treatment cost, high water quality purification efficiency, self-supporting improvement of the river bed in the lake bottom river bottom environment and avoidance of secondary pollution caused by the restoration of the river bed.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (7)
1. A river and lake treatment and restoration method is characterized by comprising the following steps: the stock material and apparatus comprising: dredging equipment, a flocculating agent, aeration equipment, bottom mud conveying and digging equipment, an ozone generator, a water culture plant group, yard treatment, an emergency dosing device, an oxidation pond, a sewage treatment device and a treatment pond.
2. The river and lake treatment and restoration method according to claim 1, wherein the method comprises the following steps: the treatment and repair method comprises the following steps:
step (1) a sewage treatment device is constructed upstream of the water sources of the river channel and the lake, and industrial wastewater, domestic wastewater and harmful wastewater are deeply filtered and purified by an ozone generator to eliminate the peculiar smell of the water sources;
step (2) the filtered water source flows to a constructed oxidation pond, and nitrogen and phosphorus in the water body are effectively removed by utilizing the purification function of green plants;
step (3) removing impurities in the water source riverbed and the water source by adopting dredging equipment;
step (4), dredging the river bed sludge by using bottom sludge conveying and digging equipment through a pipeline for conveying;
step (5), conveying the river bed sludge into a treatment tank, and adding a flocculating agent for mixing treatment;
step (6), the yard treatment adopts measures such as yard seepage prevention, yard grass planting, sand throwing covering method and the like to prevent secondary pollution;
step (7) putting PAC into the slurry by the emergency dosing device, fully mixing, precipitating and directly discharging back to rivers and lakes to build a new riverbed;
step (8) the aeration equipment is arranged at the bottom of a river channel and a lake to generate strong axial thrust and radial stirring force, sucked air is crushed into fine bubbles, a steam-water combination is injected into water with strong force to carry out oxygenation treatment, black and smelly bottom mud disappears, the bottom mud is changed into gray, and the bottom mud gradually develops towards the direction of local normal soil;
and (9) selecting a plurality of water fennel and calla to be mixed and planted on the water source of the river and lake by the water culture plant group.
3. The river and lake treatment and restoration method according to claim 2, wherein the method comprises the following steps: and (2) arranging a nitrogen and phosphorus sensor in the oxidation pond in the step (1) for detecting the water source content value in real time.
4. The river and lake treatment and restoration method according to claim 2, wherein the method comprises the following steps: and (4) adopting a subsurface flow plug flow aerator to make the oxidation-reduction potential value between 400 and 600mv for the aeration equipment in the step (8).
5. The river and lake treatment and restoration method according to claim 2, wherein the method comprises the following steps: the anti-seepage treatment in the step (6) is to lay a composite geomembrane on one side of the polluted sediment, and build a soil textile bag on the membrane; the hand-operated seeder is adopted to broadcast grass seeds for fast grass planting, so that secondary pollution of pollutants in bottom mud of the yard to the surrounding environment due to rainwater flushing can be prevented, and the landscape of the yard can be quickly recovered; and dredging polluted bottom mud for 2.0m, treating the residual polluted bottom mud by using a covering method, and throwing coarse sand with the thickness of 0.5 m.
6. The river and lake treatment and restoration method according to claim 2, wherein the method comprises the following steps: in the step (7), compound enzyme, aerobic bacteria and nitrobacteria can be added into the new river bed material to decompose the organic matter, and the ammonia nitrogen is converted into nitrate nitrogen.
7. The river and lake treatment and restoration method according to claim 2, wherein the method comprises the following steps: and (3) attaching a layer of biological film to the roots and stems of the cress and the calla plants of the hydroponic plant group in the step (9).
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| CN202110473613.7A CN113371925A (en) | 2021-04-29 | 2021-04-29 | River and lake treatment and restoration method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105407A (en) * | 2021-11-08 | 2022-03-01 | 安徽雷克环境科技有限公司 | Water ecology recovery method for polluted river water |
| CN114605029A (en) * | 2022-02-14 | 2022-06-10 | 成都环美园林生态股份有限公司 | Treatment method of sewage generated by dredging |
-
2021
- 2021-04-29 CN CN202110473613.7A patent/CN113371925A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105407A (en) * | 2021-11-08 | 2022-03-01 | 安徽雷克环境科技有限公司 | Water ecology recovery method for polluted river water |
| CN114105407B (en) * | 2021-11-08 | 2023-09-05 | 安徽雷克环境科技有限公司 | Water ecology recovery method for polluted river water |
| CN114605029A (en) * | 2022-02-14 | 2022-06-10 | 成都环美园林生态股份有限公司 | Treatment method of sewage generated by dredging |
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Application publication date: 20210910 |