CN115520969A - Composite ecological restoration method for farmland drainage polluted river channel - Google Patents
Composite ecological restoration method for farmland drainage polluted river channel Download PDFInfo
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Images
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
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
- C02F3/325—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
-
- 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
-
- 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
- C02F2101/105—Phosphorus compounds
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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
- 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
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Abstract
The invention provides a composite ecological restoration method for a farmland drainage polluted river channel, and belongs to the technical field of environmental management. The composite ecological restoration method comprises the steps of putting a microbial growth promoter in a river channel, and laying a composite ecological floating bed; the microbial growth promoting agent comprises the following components in percentage by mass: 45-55% of carbon source, 15-18% of nitrogen source, 6-7% of vitamin, 3.5-4.5% of macroelement, 2-3% of growth-promoting component, 0.8-1.2% of trace element and 15-25% of carrier; the composite ecological floating bed takes a floating island as a main body, aquatic plants are planted on the upper part of the water surface of the floating island, and periphyton carriers are arranged on the lower part of the water surface. The invention utilizes the combination of the microbial growth promoting agent and the ecological floating bed and periphyton to construct the ecological balance of river microbe-algae, and solves the problems of the bottom mud and water body pollution of the rural river caused by agricultural non-point source pollution. The composite ecological method has the advantages of low cost, simple maintenance, long-term use after once investment, environmental protection and no secondary pollution.
Description
Technical Field
The invention belongs to the technical field of environmental management, and particularly relates to a composite ecological restoration method for a farmland drainage polluted river channel.
Background
Agricultural non-point source pollution has been a main contributor to the surface water pollution of the three rivers and three lakes and rural areas in China for many years, not only causes eutrophication of water bodies, but also seriously threatens the safety of drinking water. However, unlike industrial and domestic sewage, farmland drainage has the characteristics of low nitrogen and phosphorus concentration, unfixed discharge amount and discharge time, and the rural river is the main discharge and transfer path. The agricultural non-point source pollution, especially the farmland drainage, becomes one of the main pollution sources of the rural river channels in the river network area, the problems of eutrophication of the water body of the rural river channels and the like are easily caused, and the drinking water safety of rural areas is seriously threatened. But because of the characteristics of randomness, universality and the like of farmland drainage, the treatment, prevention and control difficulties are high.
In the treatment of non-point source pollution of river channels in villages, the main treatment direction is ecological purification of the river channels and control of bottom mud pollution. The common ecological purification technology for the river channel comprises an ecological bank protection, an ecological floating bed, an underwater forest and the like, and the principle of the technology is mainly that aquatic plants which have a purification effect on water quality are planted to absorb nitrogen and phosphorus in the water body so as to improve the water quality. However, the biological method can only purify the water body, is difficult to further repair the black and odorous phenomenon of the water body caused by the bottom sediment pollution, and has low nitrogen and phosphorus removal efficiency. The existing treatment methods which take sediment pollution control as the target guide, such as dredging and desilting, have high cost, and the methods of flocculation precipitation, chemical covering and the like are easy to generate secondary pollution, so the method is not suitable for treating the water body pollution of rural river channels caused by agricultural non-point source pollution.
The microbes and the algae are the basis of material circulation and energy flow of a river ecosystem, and a good microbe-algae ecosystem is beneficial to improving the self-cleaning capacity of the river and is the key for improving and recovering the water ecological environment. Currently, microbial growth is promoted by adding microbial growth promoters to improve the purification capacity of the microorganisms. However, part of the microbial growth promoting agents can only provide carbon sources and nitrogen sources for microorganisms, the use of the microbial growth promoting agents has poor repairing effect on water pollution, and even nutrient components in the microbial growth promoting agents can increase the nitrogen and phosphorus concentration of water.
Plant aquatic plant in traditional bed of floating, through the nitrogen phosphorus in the plant absorption water, nevertheless the plant volume of planting in the bed of floating can influence the dirty effect of accuse of plant by too little, and the sunshine in the too big separation water of planting volume suppresses aerobic microorganism's growth, all is not favorable to water ecological remediation. In addition, the method is limited by the length of the root system of the aquatic plant, and has poor repairing effect on deeper water.
Therefore, how to improve the traditional microbial growth promoter and the traditional floating bed to effectively treat the rural river polluted by the farmland drainage is a technical problem which needs to be solved at present.
Disclosure of Invention
In view of the above, the present invention aims to provide a composite ecological restoration method for a river polluted by farmland drainage, which integrates a microbial growth promoter, an ecological floating bed and periphyton, and the method can rapidly and efficiently remove nitrogen, phosphorus and the like in a river water body, radically solve the problem of river sediment pollution, eliminate black and odorous sediment in a rural river, finally form river microorganism-algae ecological balance, and improve river self-purification capability.
In order to achieve the above object, the present invention provides the following technical solutions:
a compound ecological restoration method for a farmland drainage polluted river channel comprises the steps of putting a microbial growth promoting agent into the river channel, and laying a compound ecological floating bed; the microbial growth promoting agent comprises the following components in percentage by mass: 45-55% of carbon source, 15-18% of nitrogen source, 6-7% of vitamin, 3.5-4.5% of macroelement, 2-3% of growth promoting component, 0.8-1.2% of trace element and 15-25% of carrier; the composite ecological floating bed takes a floating island as a main body, aquatic plants are planted on the upper part of the water surface of the floating island, and periphyton carriers are arranged on the lower part of the water surface.
Preferably, in the microbial growth promoting agent: carbon sources include glucose and trisodium citrate; nitrogen sources include aspartic acid, tryptophan, and alanine; the vitamins include vitamin B 2 Vitamin B 12 Folic acid and biotin; macroelements include sodium, magnesium, potassium, calcium, sulfur, phosphorus; the growth promoting component comprises gibberellin, fulvic acid and auxin; the microelements comprise iron, copper, zinc, cobalt, and manganese; the carrier is yeast extract.
Preferably, the preparation method of the microbial growth promoting agent comprises the following steps: weighing the carbon source, the nitrogen source, the vitamins, the macroelements, the growth promoting components, the trace elements and the carrier according to the proportion, uniformly mixing and grinding, and naturally airing for 1-2 hours to obtain the microbial growth promoting agent.
Preferably, the microbial growth promoting agent is administered in an amount of 50 to 60ppm.
More preferably, the microbial growth promoting agent is dosed in the form of an aqueous solution, and the concentration of the aqueous solution is 45-55g/L.
Preferably, the floating island is provided with a planting hole, a flowerpot is placed in the planting hole, and planting media are added to plant aquatic plants.
More preferably, the planting medium is river sediment.
More preferably, the aquatic plant is planted at a density of 20-30 plants/m 2 。
Preferably, the periphyton carrier is a fiber rope, the length of the fiber rope is 50-70cm, and the suspension density is 20-30 strips/m 2 。
Preferably, the area of the composite ecological floating bed is 3-16m 2 8-10 pieces/1000 m 2 A river channel.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a composite ecological restoration method for a farmland drainage polluted river channel, which improves the traditional microbial growth promoter and an ecological floating bed and makes up for the short plates of the traditional microbial growth promoter and the ecological floating bed.
The invention integrates a plurality of ecological purification means of 'microbial growth promoter + ecological floating bed + periphyton', quickly and efficiently removes nitrogen, phosphorus, organic pollutants and the like in the river water body, radically eliminates black and odorous bottom mud pollution in the river, finally forms a river microbe-algae ecological balance system, and improves the self-purification capacity of the river.
The method has the advantages of low cost, convenient construction, long-term use after once investment, environmental protection, no secondary pollution, good ecological environmental benefit and suitability for large-area popularization in rural areas.
Drawings
FIG. 1: the invention discloses a river channel composite ecological restoration implementation plan;
FIG. 2: the invention discloses a schematic diagram of a composite ecological floating bed.
Detailed Description
The invention provides a compound ecological restoration method for a farmland drainage polluted river channel, which comprises the steps of putting a microbial growth promoter into the river channel and laying a compound ecological floating bed; the microbial growth promoter comprises the following components in percentage by mass: 45-55% of carbon source, 15-18% of nitrogen source, 6-7% of vitamin, 3.5-4.5% of macroelement, 2-3% of growth-promoting component, 0.8-1.2% of trace element and 15-25% of carrier; the composite ecological floating bed takes a floating island as a main body, aquatic plants are planted on the upper part of the water surface of the floating island, and periphyton carriers are arranged on the lower part of the water surface.
The invention integrates various ecological purification means of 'microbial growth promoter + ecological floating bed + periphyton' and jointly restores the polluted river. Wherein:
the microbial growth promoter disclosed by the invention is added with vitamins, macroelements, growth-promoting components, trace elements and the like which are beneficial to the growth of microorganisms besides a carbon source and a nitrogen source, has a good repairing effect on the bottom mud after being used, can stimulate the propagation of aerobic bacteria in the bottom mud, and improves the oxidative decomposition capacity of the microorganisms on pollutants; according to the invention, the aquatic plants are planted on the composite ecological floating bed, and nitrogen and phosphorus in the water body can be absorbed by the plants.
Periphyton is an aggregate of microorganisms and non-biological substances interwoven with the same, which grow on the surface of a submerged substrate and are formed under natural environmental conditions, and comprises bacteria, periphyton, fungi, protozoa and the like, and is a stable and semi-open micro-ecosystem. Periphyton can remove nitrogen, phosphorus, organic matters and the like in the water body through various ways such as absorption, adsorption, denitrification, degradation and the like. The carrier for enriching periphyton is additionally arranged at the bottom of the ecological floating bed, so that the growth and aggregation of periphyton can be accelerated, and nitrogen and phosphorus can be effectively removed.
Therefore, the microbial growth promoter is combined with the ecological floating bed and the periphyton carrier to construct an ecological balance system of river microbe-algae, and the problem of water pollution of rural river channels caused by agricultural non-point source pollution is effectively solved.
The carbon source is the main nutrient source for the microorganism. The invention selects 50% of carbon source; further preferably comprises 25-30% of glucose and 20-25% of trisodium citrate; more preferably 27% glucose, 23% trisodium citrate.
Nitrogen is an important element that constitutes microbial nucleic acids and proteins. The nitrogen source is preferably 16 percent; further preferably comprises 5-6% of aspartic acid, 5-6% of tryptophan and 5-6% of alanine; more preferably 6% aspartic acid, 5% tryptophan and 5% alanine.
Vitamins are closely related to the growth and metabolism of microorganisms. The invention prefers 6.5% of vitamin; further preferably comprises vitamin B 2 1.5-2.5% and vitamin B 12 2-3%, folic acid 1-1.2% and biotin 1-1.2%; more preferably vitamin B 2 2% of vitamin B 12 2.5%, folic acid 1% and biotin 1%.
The inorganic salt is a main component constituting cells, and can regulate cell osmotic pressure, and also serve as an active center of an enzyme to maintain the activity of the enzyme. The invention prefers 4% of macroelements; further preferably comprising NaNO 3 1-1.5％、MgSO 4 0.5-1％、K 2 HPO 4 0.5-1％、CaCl 2 0.5-1%; more preferably NaNO 3 1％、MgSO 4 1％、K 2 HPO 4 1％、CaCl 2 1 percent. The trace elements are related to enzyme activity, and the lack of trace elements can cause the reduction of the physiological activity of microorganisms. The invention preferably selects 1% of trace elements; more preferably FeCl 3 0.2-0.3％、CuSO 4 0.2-0.3％、ZnSO 4 0.2-0.3％、CoCl 2 0.1-0.2％、MnCl 2 0.1 to 0.2 percent; more preferably FeCl 3 0.2％、CuSO 4 0.2％、ZnSO 4 0.2％、CoCl 2 0.2％、MnCl 2 0.2％。
The growth promoting component can improve the biological activity of water body microorganisms. The invention preferably selects the growth promoting component 2.5%; further preferably comprises gibberellin 0.6-1%, fulvic acid 0.6-1%, and plant auxin 0.8-1%; more preferably, gibberellin 0.8%, fulvic acid 0.8%, and auxin 0.9%.
Preferred carriers of the invention are 20%; further preferably, the carrier is yeast extract.
The preparation method of the preferred microbial growth promoting agent comprises the following steps: weighing a carbon source, a nitrogen source, vitamins, macroelements, growth promoting components, trace elements and a carrier according to a proportion, uniformly mixing and grinding, and naturally airing for 1-2 hours to obtain a microbial growth promoter; further preferably naturally drying for 1.5h. As an implementation mode, 25-30 parts of glucose, 20-25 parts of trisodium citrate, 5-6 parts of aspartic acid, 5-6 parts of tryptophan, 5-6 parts of alanine and 1.5-2.5 parts of vitamin B are weighed according to parts by mass 2 2-3 parts of vitamin B 12 1-1.2 parts of folic acid, 1-1.2 parts of biotin and 1-1.5 parts of NaNO 3 0.5-1 part of MgSO 4 0.5-1 part of K 2 HPO 4 0.5-1 part of CaCl 2 0.2-0.3 parts of FeCl 3 0.2-0.3 part of CuSO 4 0.2-0.3 part of ZnSO 4 0.1-0.2 part of CoCl 2 0.1-0.2 parts of MnCl 2 0.6-1 part of gibberellin, 0.6-1 part of fulvic acid, 0.8-1 part of auxin and 15-25 parts of yeast extract, uniformly mixing and grinding, and naturally airing for 1-2 hours to obtain the microbial growth promoter.
According to the invention, the dosage of the microbial growth promoting agent is preferably 50-60ppm (compared with the water body), more preferably 52-58ppm, and even more preferably 55ppm. Preferably, the microbial growth promoting agent is administered in the form of an aqueous solution having a concentration of 45 to 55g/L, further 50g/L. When the aqueous solution is fed, the aqueous solution is preferably fed through feeding pipelines which are distributed on two sides of the river, and further preferably, the feeding pipelines are spaced at intervals of 40-60m, and more preferably 50m, as shown in fig. 1.
The composite ecological floating bed consists of floating island, aquatic plant, planting medium, flower pot and periphyton carrier. The floating island is provided with planting holes, flowerpots are placed in the planting holes, planting media are added to plant aquatic plants, the aquatic plants float on the water surface, and periphyton carriers are arranged under the water surface, as shown in figure 2. The invention has no special limitation on the installation form of the periphyton carrier, including but not limited to suspension, adhesion and the like.
The preferred aquatic plant in the invention is one or more of calamus, iris and canna; preferably, the plant is planted in a short plant. The preferred aquatic plant planting density of the invention20-30 strains/m 2 More preferably 25 strains/m 2 The aquatic plants are planted in pots, preferably 2-3 plants per pot.
The preferable planting medium is river sediment. The nutrient soil, the mixed matrix and the like are used as aquatic plant growth media, extra nitrogen and phosphorus can be brought and released into a river water body, and the original river sediment is used as the aquatic plant growth media, so that extra nitrogen and phosphorus pollution can be avoided.
According to the invention, the periphyton carrier is preferably a fiber rope, the length of the fiber rope is 50-70cm, the further preference is 60cm, the further preference is 0.5-3.0cm, the suspension density is 20-30 strips/m 2 Further preferably 25 strips/m 2 . As an alternative embodiment, the periphyton carrier of the present invention is suspended directly below the pot. The periphyton carrier can enrich microorganisms such as algae, bacteria and the like in water, periphyton is formed on the surface of the carrier, and the nitrogen and phosphorus removal capability of the floating bed is improved. The material of the fiber rope is not particularly limited, and includes, but is not limited to, natural fibers or artificial fibers, such as hemp ropes, cotton ropes, polyester fiber ropes, polyester ropes, and the like. The present invention is not limited to the form of the fiber rope, and includes, but is not limited to, a spiral type (braid type), a square type, a tassel type, and the like.
The area of the optimized composite ecological floating bed of the invention is 3-16m 2 Preferably, the composite ecological floating bed is divided into a round ecological floating bed and a square ecological floating bed, more preferably, the diameter of the round ecological floating bed is 2-4m, the side length of the square ecological floating bed is 2-4m, the round ecological floating bed is arranged at the place where farmland drainage enters a river channel, and the square ecological floating bed is arranged in the middle section of the river channel, as shown in figure 1. Optimally laying 8-10 composite ecological floating beds/1000 m 2 Riverway, the interval is 25-30m, and the preferable composite ecological floating bed is arranged between microorganism growth promoting agent putting areas. As an implementation mode, the commercial floating island units are directly purchased from the floating island main body of the composite ecological floating bed, and the commercial floating island units comprise PE materials which are good in air permeability and convenient to maintain and manage, and are freely combined and spliced into a round or square ecological floating bed.
In the present invention, materials to be used are commercially available unless otherwise specified.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
A composite ecological restoration method for a farmland drainage polluted river channel comprises the following steps:
cleaning the aquatic weeds in the selected river channel, erecting microbial growth promoting agents on the riverside, putting pipelines, wherein the interval between every two pipelines is 50m, and arranging the pipelines on two sides of the river channel in sequence; building a composite ecological floating bed in the middle of a growth promoter putting pipeline; selecting floating island units made of PE materials, freely combining, splicing and fixing the floating island units into a round or square shape, wherein round ecological floating beds are placed at the drainage river mouth of a farmland, and the diameter of each round ecological floating bed is 3m; a square ecological floating bed is arranged in the middle of the experimental riverway, the side length is 3m, and 9 ecological floating beds are distributed in a volume of 1000m 2 River channel, as shown in fig. 1.
Set up on the compound ecological bed that floats and have planted the hole, place the flowerpot, add the river course bed mud in the flowerpot as planting the medium, plant the short emergent aquatic plant of plant height relatively, three kinds of plants altogether: planting calamus, iris and canna at a density of 26 plants/m 2 2 plants/pot; and suspending a periphyton carrier with a length of 60cm under each flowerpot for culturing periphyton, wherein 2 periphyton carriers are used per pot.
After the composite ecological floating bed and the microbial growth promoting agent feeding pipeline are built, feeding a microbial growth promoting agent, and mixing the microbial growth promoting agent and water into growth promoting agent mixed liquid of 50g/L, wherein the dosage of the fed microbial growth promoting agent is 50ppm. The microbial growth promoting agent formulation is shown in table 1:
TABLE 1 microbial growth promoting agent formulation 1
| Composition (I) | Ratio (%) | Principal Components |
| Carbon source | 50 | Glucose 27%, trisodium citrate 23% |
| Nitrogen source | 16 | Aspartic acid 6%, tryptophan 5%, alanine 5% |
| Vitamin preparation | 6.5 | Vitamin B 2 2% of vitamin B 12 2.5 percent, folic acid 1 percent and biotin 1 percent |
| Constant elements | 4 | NaNO 3 1％、MgSO 4 1％、K 2 HPO 4 1％、CaCl 2 1％ |
| Growth promoting component | 2.5 | Gibberellin 0.8%, fulvic acid 0.8%, and auxin 0.9% |
| Trace elements | 1 | FeCl 3 0.2％、CuSO 4 0.2％、ZnSO 4 0.2％、CoCl 2 0.2％、MnCl 2 0.2％ |
| Carrier | 20 | 20 percent of yeast extract |
Example 2
A composite ecological restoration method for a farmland drainage polluted river channel comprises the following steps:
cleaning the aquatic weeds in the selected river channel, erecting microbial growth promoting agents on the riverside, putting pipelines, wherein the interval between every two pipelines is 40m, and arranging the pipelines on two sides of the river channel in sequence; building a composite ecological floating bed in the middle of a growth promoter putting pipeline; selecting PE floating island units, freely combining, splicing and fixing the PE floating island units into a round or square shape, wherein round ecological floating beds are placed at the river mouth of farmland drainage, and the diameter of each round ecological floating bed is 2m; a square ecological floating bed is arranged in the middle of the experimental riverway, the side length is 2m, and 10 ecological floating beds are distributed in a volume of 1000m 2 A river channel.
Set up on the compound ecological bed that floats and have planted the hole, place the flowerpot, add the river course bed mud in the flowerpot as planting the medium, plant the short emergent aquatic plant of plant height relatively, three kinds of plants altogether: calamus, iris and canna, with a planting density of 20 plants/m 2 2 plants/pot; and suspending periphyton carriers of 50cm length under each flowerpot for culturing periphyton, 2 periphyton carriers per pot.
After the composite ecological floating bed and the microbial growth promoting agent feeding pipeline are built, feeding a microbial growth promoting agent, and mixing the microbial growth promoting agent and water into growth promoting agent mixed liquid of 45g/L, wherein the dosage of the fed microbial growth promoting agent is 55ppm. The microbial growth promoting agent formulation is shown in table 2:
TABLE 2 microbial growth promoting agent formulation 2
Example 3
A composite ecological restoration method for a farmland drainage polluted river channel comprises the following steps:
cleaning the aquatic weeds in the selected river course, then erecting a microorganism growth promoting agent throwing pipe at the bank sideEach pipeline is arranged at an interval of 60m on two sides of the river channel in sequence; building a composite ecological floating bed in the middle of a growth promoter putting pipeline; selecting floating island units made of PE materials, freely combining, splicing and fixing the floating island units into a round or square shape, wherein round ecological floating beds are placed at the drainage river mouth of a farmland, and the diameter of each round ecological floating bed is 4m; a square ecological floating bed is arranged in the middle of the experimental riverway, the side length is 4m, and 8 ecological floating beds are distributed in a volume of 1000m 2 A river channel.
Set up on the compound ecological bed that floats and have planted the hole, place the flowerpot, add the river course bed mud in the flowerpot as planting the medium, plant the short emergent aquatic plant of plant height relatively, three kinds of plants altogether: planting calamus, iris and canna at a density of 30 plants/m 2 3 plants/pot; and suspending periphyton carriers with a length of 70cm under each flowerpot for culturing periphyton, wherein 3 periphyton carriers are used per pot.
After the composite ecological floating bed and the microbial growth promoting agent feeding pipeline are built, feeding a microbial growth promoting agent, and mixing the microbial growth promoting agent and water into growth promoting agent mixed liquid of 55g/L, wherein the dosage of the fed microbial growth promoting agent is 60ppm. The microbial growth promoting agent formulation is shown in table 3:
table 3 microbial growth promoting agent formula 3
| Composition (I) | Ratio (%) | Principal Components |
| Carbon source | 48 | Glucose 26%, trisodium citrate 22% |
| Nitrogen source | 15 | Aspartic acid 5%, tryptophan 5%, alanine 5% |
| Vitamin preparation | 6 | Vitamin B 2 1.5% and vitamin B 12 2.1 percent, 1.2 percent of folic acid and 1.2 percent of biotin |
| Constant elements | 3.5 | NaNO 3 1.1％、MgSO 4 0.8％、K 2 HPO 4 0.8％、CaCl 2 0.8％ |
| Growth promoting component | 2 | Gibberellin 0.6%, fulvic acid 0.6%, and auxin 0.8% |
| Trace elements | 0.8 | FeCl 3 0.2％、CuSO 4 0.2％、ZnSO 4 0.2％、CoCl 2 0.1％、MnCl 2 0.1％ |
| Carrier | 24.7 | Yeast extract 24.7% |
Example 4
Selecting river reach of Tankou city leap-into river white rabbit village as a restoration object, wherein the river course in an experimental area is about 200m long, the river surface is 12-20m wide, the water depth is 0.8-1.3m, arranging discharge pipelines at an interval of 50m, sequentially arranging the pipelines at two sides of the river course, and respectively arranging 4 pipelines on the left bank and the right bank of the river reach of 200m, wherein the total number of the pipelines is 8. Before treatment, a water sample of the saltingriver is collected to determine the concentration of total nitrogen, total phosphorus and COD in water, and the bottom sludge of the river is collected to determine the microbial activity (FDA) and the biodegradation performance (G value) of the bottom sludge. The total nitrogen concentration of the river water is 2.70mg/L, the total phosphorus concentration is 0.05mg/L, and the COD concentration is 40.53mg/L; the bottom sludge microbial activity (FDA) was 0.015A/G and the biodegradability (G-value) was 0.18G/(Kg h).
The water quantity of the experimental river reach is about 1600m 3 The composite ecological restoration is carried out according to the mode of the embodiment 1, 1600L of microbial growth promoting agent is put in, 8 pipelines are respectively put in from two sides, 200L of microbial growth promoting agent is respectively put in each pipeline, after the composite ecological floating bed is arranged, water samples are collected every 7 days in the first month to measure the concentration of total nitrogen, total phosphorus and COD, and water samples and mud samples are collected for 1 time every month in the second month to monitor the pollution restoration condition.
Monitoring results show that after the microbial growth promoting agent is put and the composite ecological floating bed is arranged, the total nitrogen concentration of the water body in the first week is 2.01-2.25mg/L, the total nitrogen concentration of the water sample in the second week is 1.98-2.19mg/L, the total nitrogen concentration in the third week is reduced to 1.89-2.13mg/L, and the total nitrogen concentration in the fourth week is reduced to 1.72-1.91mg/L. The total phosphorus concentration in the river is lower, and compared with that before microbial growth promoting agents and the composite ecological floating bed are put in, the total phosphorus concentration of the water body is reduced to 0.02-0.03mg/L after experiments are carried out. After the microbial growth promoting agent is put in the container for one week, the COD concentration is slightly increased to 50.52-56.15mg/L, and is slowly reduced from the second week to 25.87-31.07mg/L in the fourth week.
Monitoring the water sample in the second month to find that the total nitrogen concentration is reduced to 1.57-1.61mg/L, the total phosphorus concentration is basically unchanged, and the COD content is 11.37-12.18mg/L; after the third month, the water sample is monitored, and the total nitrogen concentration is reduced to 1.31-1.42mg/L, the total phosphorus concentration is below 0.03mg/L, and the COD concentration is reduced to 7.87-8.24mg/L. The mud-like monitoring results in each month show that the microbial activity (FDA) of the sediment increases to 0.022-0.025A/g in the first month after the growth-promoting agent is added, and decreases to 0.018-0.021A/g in the second month, and is similar to the content before the addition, i.e., 0.015-0.018A/g in the third month. The biodegradability (G value) rises to 1.05-1.1G/(Kg h) in the first month after dosing, continues to increase and decrease in the second month to 1.19-1.28G/(Kg h), and drops to 0.30-0.36G/(Kg h) in the third month. The method for restoring the composite ecology provided by the invention can obviously reduce the total nitrogen and COD concentration in the rural river polluted by the farmland drainage, improve the reproductive capacity of microorganisms in the bottom mud, radically eliminate the black and odorous bottom mud pollution in the rural river and improve the self-purification capacity of the river on nitrogen, phosphorus and organic matters.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A composite ecological restoration method for a farmland drainage polluted river channel is characterized by comprising the steps of putting a microbial growth promoter into the river channel and laying a composite ecological floating bed;
the microbial growth promoter comprises the following components in percentage by mass: 45-55% of carbon source, 15-18% of nitrogen source, 6-7% of vitamin, 3.5-4.5% of macroelement, 2-3% of growth-promoting component, 0.8-1.2% of trace element and 15-25% of carrier;
the composite ecological floating bed takes a floating island as a main body, aquatic plants are planted on the upper part of the water surface of the floating island, and periphyton carriers are arranged on the lower part of the water surface.
2. The composite ecological restoration method according to claim 1, wherein in the microbial growth promoting agent:
carbon sources include glucose and trisodium citrate; nitrogen sources include aspartic acid, tryptophan, and alanine; the vitamins include vitamin B 2 Vitamin B 12 Folic acid and biotin; macroelements include sodium, magnesium, potassium, calcium, sulfur, phosphorus; the growth promoting component comprises gibberellin, fulvic acid and auxin; the microelements comprise iron, copper, zinc, cobalt, and manganese; the carrier is yeast extract.
3. The composite ecological restoration method according to claim 1, wherein the preparation method of the microbial growth promoting agent comprises the following steps:
weighing the carbon source, the nitrogen source, the vitamins, the macroelements, the growth promoting components, the trace elements and the carrier according to the proportion, uniformly mixing and grinding, and naturally airing for 1-2h to obtain the microbial growth promoting agent.
4. The composite ecological restoration method according to claim 1, wherein the microbial growth promoting agent is administered in an amount of 50-60ppm.
5. The composite ecological restoration method according to claim 4, wherein the microbial growth promoting agent is administered in the form of an aqueous solution, and the concentration of the aqueous solution is 45-55g/L.
6. The composite ecological restoration method according to claim 1, wherein the floating island is provided with planting holes, flowerpots are placed in the planting holes, and planting media are added to plant aquatic plants.
7. The composite ecological restoration method according to claim 6, wherein the planting medium is river sediment.
8. The composite ecological restoration method according to claim 1 or 6, wherein the aquatic plant is planted at a density of 20-30 plants/m 2 。
9. The composite ecological restoration method according to claim 1, wherein the periphyton carrier is a fiber rope with a length of 50-70cm and a hanging density of 20-30 strips/m 2 。
10. The composite ecological restoration method according to claim 1, wherein the composite ecological floating bed has an area of 3-16m 2 8-10 pieces/1000 m 2 A river channel.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024538A (en) * | 2006-02-21 | 2007-08-29 | 上海市南洋模范中学 | Comprehensive treatment method for preset storehouse engineering of city |
| RU2006112034A (en) * | 2006-04-12 | 2007-10-27 | Антон Викторович Сергеев (RU) | BIOLOGICALLY ACTIVE PREPARATION AND METHOD FOR PRODUCING IT |
| CN102050523A (en) * | 2010-12-29 | 2011-05-11 | 赵亚勋 | Method for treatment and in-situ ecological restoration of black and stink riverway by using microorganism |
| CN104030449A (en) * | 2014-05-19 | 2014-09-10 | 广西益江环保科技有限责任公司 | Closed or semi-closed landscape water body governance method |
| CN106830358A (en) * | 2017-02-21 | 2017-06-13 | 佛山市碧沃丰生物科技股份有限公司 | A kind of sewage disposal biological growth promoter and preparation method thereof, applying method |
| CN106946339A (en) * | 2017-02-08 | 2017-07-14 | 中国科学院南京地理与湖泊研究所 | A kind of water course in situ purification and ecological restoring method |
| CN108191070A (en) * | 2017-12-20 | 2018-06-22 | 浙江省亚热带作物研究所 | A kind of method that ecological floating island using plant-microorganism coupling improves water quality |
| CN113896327A (en) * | 2021-10-26 | 2022-01-07 | 广东省科学院化工研究所 | River course water ecological remediation system |
-
2022
- 2022-09-26 CN CN202211173694.XA patent/CN115520969A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024538A (en) * | 2006-02-21 | 2007-08-29 | 上海市南洋模范中学 | Comprehensive treatment method for preset storehouse engineering of city |
| RU2006112034A (en) * | 2006-04-12 | 2007-10-27 | Антон Викторович Сергеев (RU) | BIOLOGICALLY ACTIVE PREPARATION AND METHOD FOR PRODUCING IT |
| CN102050523A (en) * | 2010-12-29 | 2011-05-11 | 赵亚勋 | Method for treatment and in-situ ecological restoration of black and stink riverway by using microorganism |
| CN104030449A (en) * | 2014-05-19 | 2014-09-10 | 广西益江环保科技有限责任公司 | Closed or semi-closed landscape water body governance method |
| CN106946339A (en) * | 2017-02-08 | 2017-07-14 | 中国科学院南京地理与湖泊研究所 | A kind of water course in situ purification and ecological restoring method |
| CN106830358A (en) * | 2017-02-21 | 2017-06-13 | 佛山市碧沃丰生物科技股份有限公司 | A kind of sewage disposal biological growth promoter and preparation method thereof, applying method |
| CN108191070A (en) * | 2017-12-20 | 2018-06-22 | 浙江省亚热带作物研究所 | A kind of method that ecological floating island using plant-microorganism coupling improves water quality |
| CN113896327A (en) * | 2021-10-26 | 2022-01-07 | 广东省科学院化工研究所 | River course water ecological remediation system |
Non-Patent Citations (1)
| Title |
|---|
| 王海珊;邹平;付先萍 等: "黑臭水体组合生物净化技术研究进展", 环境工程技术学报, no. 01, 14 January 2020 (2020-01-14), pages 58 - 64 * |
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