CN106006978B - The substrate improved materials and preparation method and restorative procedure of a kind of high organic bed mud shallow lake - Google Patents

The substrate improved materials and preparation method and restorative procedure of a kind of high organic bed mud shallow lake Download PDF

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CN106006978B
CN106006978B CN201610390321.6A CN201610390321A CN106006978B CN 106006978 B CN106006978 B CN 106006978B CN 201610390321 A CN201610390321 A CN 201610390321A CN 106006978 B CN106006978 B CN 106006978B
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substrate
bed mud
improved materials
soft
lake
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CN106006978A (en
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吴振斌
张义
贺锋
徐栋
刘子森
刘碧云
周巧红
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Institute of Hydrobiology of CAS
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Institute of Hydrobiology of CAS
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor

Abstract

The invention discloses a kind of substrate improved materials of high organic bed mud shallow lake and preparation method and restorative procedure, substrate improved materials are made of clay, kaolin, enviroment protective ceramic filter bulb and calper calcium peroxide.Step is: 1) selecting clay, kaolin, enviroment protective ceramic filter bulb and calper calcium peroxide is raw material;2) enviroment protective ceramic filter bulb is placed in dilute hydrochloric acid and is impregnated, be washed till neutrality with clear water, dried;3) by clay, kaolin, calper calcium peroxide and treated that ceramic filtration ball mixes by a certain percentage, substrate improved materials are made.Restorative procedure is A) in lakebed substrate improvement region, bamboo stick is set;B substrate improved materials) are spilled into lakebed on lake surface;C) kind planting submerged plant improves region in substrate, is managed and conserves to submerged plant.It is easy to implement the method, easy to operate, it effectively solves submerged plant in the soft high organic bed mud in surface layer lake and is difficult to be colonized, is difficult to carry out the problems such as Ecological Restoration Project, accelerate the recovery of lake ecosystem.

Description

It the substrate improved materials and preparation method of a kind of high organic bed mud shallow lake and repairs Compound method
Technical field
The invention belongs to the ecological restoration technical fields in lake, and it is shallow to be more particularly to a kind of soft high organic bed mud in surface layer The substrate improved materials in water lake further relate to a kind of system of the substrate improved materials of soft high organic bed mud shallow lake in surface layer Preparation Method also relates to a kind of restorative procedure of soft high organic bed mud shallow lake in surface layer, it is soft to can be applied to surface layer The Ecological Restoration Project of high organic bed mud shallow lake.
Background technique
Submerged plant planting and recovery technique are the key technologies of Ecological Restoration Project, repair water using aquatic macrophyte Body and sediment pollution are one of improvement, the effective way for adjusting and inhibiting water eutrophication.The entire growth course of submerged plant It all lives in water, root, stem, leaf can absorb the nutriment in water, and its growth and development process is exactly to absorb nutrition in water The process of substance forms very huge environmental carrying capacity and strong self-purification capacity.And rhizosphere microorganism is degradable organic Pollutant constantly purifies water and repairs bed mud.But for black smelly bed mud river, black smelly bed mud is not covered and is transformed Processing, submerged plant are difficult to survive, and Ecological Restoration Project is difficult to promote and apply.But many natural shallow lake sediments pines It is soft, the content of organic matter is high, this special substrate be unfavorable for submerged plant growth field planting, generally cannot direct kind of planting submerged plant, Or submerged plant survival rate is low, Ecological Restoration Project is difficult to promote and apply.
Clay is a kind of soil seldom containing the grains of sand, having stickiness, can be used as environment-friendly type substrate transformation material and is applied to lake Substrate improvement project, but the clay of consolidation be easy it is hardened cause anaerobic environment, cause submerged plant root system to be difficult to grow and rot. The gap of substrate can be increased by the way that loose porous modified ceramic filter bulb is added, mineral improver kaolin, which is added, can accelerate bottom of pond The conversion of organic matter or Humus, microelement can promote root system of plant field planting and growth, and modified ceramic filter bulb in kaolin There is strong absorption property with kaolin, the nutritive salt such as adsorbable bed mud and Water, phosphorus are while repairing bed mud in situ Submerged plant primary growth provides nutrient source, and the biomembrane and submerged plant rhizosphere microorganism that ceramic filtration ball surface is formed are degradable Mineralising organic matter.Oxygenation agent of the calper calcium peroxide as a kind of high-efficiency environment friendly simultaneously, can increase the dissolved oxygen of bed mud and bottom water body Concentration is conducive to improve water quality, accelerates the removal of organic matter in bed mud, further promote plant growth.The present invention is directed to pass through Clay, kaolin, enviroment protective ceramic filter bulb and calper calcium peroxide are mixed in a certain ratio and are applied to surface layer as substrate improved materials In the recovery project of soft high organic bed mud shallow lake, improves demonstration area living environment, makes it suitable for submerged plant growth, The problems such as effectively solving submerged plant survival hardly possible in the soft high organic bed mud pool lake of surface layer, easily floating, while having to bed mud The pollutants such as machine object carry out absorption in situ, it is made to accelerate the recovery and building of the ecosystem.
Summary of the invention
The purpose of the present invention is be difficult to for the soft high organic bed mud shallow lake in above-mentioned surface layer using restoration of the ecosystem work The problem of journey is the substrate improved materials for being the provision of a kind of soft high organic bed mud shallow lake in surface layer, material tool There is the advantages that formula is reasonable, easy to use, low in cost, environmental-friendly, substrate improved effect is good, matrix is improved by substrate and is repaired Good living environment is built while rehydration body and bed mud for submerged plant growth.
Another object of the present invention is to be the provision of a kind of soft high organic bed mud shallow lake substrate in surface layer to change The preparation method of good timber material, the preparation method technological operation are simple, environmental-friendly.
Another object of the present invention is to be the provision of a kind of reparation of soft high organic bed mud shallow lake in surface layer Method, the restorative procedure is easy to operate, ecological, environmental protective, can improve substrate living environment, makes it suitable for submerged plant growth, effectively The problems such as submerged plant is difficult to Survival and growth in the soft high organic bed mud in surface layer lake is solved, while to dirts such as bed mud organic matters It contaminates object and carries out removal in situ, be conducive to the recovery of water area ecological environment, it is made to accelerate the recovery of lake ecosystem and health hair Exhibition.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, it by following raw material mass fraction It is made:
Wherein: a kind of enviroment protective ceramic filter bulb, it is made of the mass fraction of following raw material:
The enviroment protective ceramic filter bulb is the then addition using industrial residue magnesium slag, flyash, gangue, clay as raw material Magnesium slag enviroment protective ceramic made of the ingredients such as hole agent (granules of polystyrene) and binder (carboxymethyl cellulose and silica solution) are fired (related preparation detailed process is see ceramic journal, in March, 2010, the 1st phase of volume 31, magnesium slag porous ceramic filter materials stomata for filter bulb The regulation of rate);
The clay is soil seldom containing the grains of sand, having stickiness, has preferable plasticity.General clay is all by silicon Hydrochlorate mineral are formed after weathering at the earth's surface.Ingredient is mainly silica and aluminium oxide, Se Bai and fire resisting, for prepare china clay it Primary raw material;
The kaolin is that nature is common, a kind of very important clay mineral.Main component be kaolinite and Halloysite further includes a small amount of other ores and microelement.High, the good plasticity, firm with the soft Baidu of quality Numerous physicochemical characteristics such as binding type, good antiacid dissolubility and lower cation exchange capacity (CEC).
A kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, it by following mass fraction raw material (preferable range) is made:
Wherein: a kind of enviroment protective ceramic filter bulb, it is made of the raw material of following mass fraction:
A kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, it by following mass fraction raw material (good range) is made:
Wherein: a kind of enviroment protective ceramic filter bulb, it is made of the raw material of following mass fraction:
A kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, it by following mass fraction raw material It is made: (best range):
Wherein: a kind of enviroment protective ceramic filter bulb, it is made of the raw material of following mass fraction:
A kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, it by following mass fraction raw material (optimum value) is made:
Wherein: a kind of enviroment protective ceramic filter bulb, it is made of the raw material of following mass fraction:
A kind of preparation method of the substrate improved materials of the soft high organic bed mud shallow lake in surface layer, the steps include:
1) raw material for selecting clay, kaolin, enviroment protective ceramic filter bulb and calper calcium peroxide to improve for substrate;
2) enviroment protective ceramic filter bulb is placed in dilute hydrochloric acid mass fraction 5%-10% after impregnating 2-5h, is washed till with clear water Property, drying (moisture content is lower than 5%);A kind of preparation of enviroment protective ceramic filter bulb is the prior art for process, and enviroment protective ceramic filter bulb is Using industrial residue magnesium slag, flyash, gangue, clay as raw material, then plus pore former (granules of polystyrene) and binder (carboxylic Methylcellulose and silica solution) etc. ingredients fire made of magnesium slag enviroment protective ceramic filter bulb (related preparation detailed process is see ceramics Journal, in March, 2010, the 1st phase of volume 31, the regulation of the magnesium slag porous ceramic filter materials porosity);
3) by clay, kaolin, calper calcium peroxide and treated that ceramic filtration ball mixes by a certain percentage, substrate improvement is made Material.
The dilute hydrochloric acid, i.e. mass fraction are lower than 20% hydrochloric acid.Colorless clear liquid.Highly acid.Irritant gas Taste.Belong to pharmaceutic adjuvant, pH value adjustment agent.It can be used for scale removal, produce carbon dioxide (laboratory preparation method).Glass should be placed in It is sealed in glass bottle.
A kind of restorative procedure of the soft high organic bed mud shallow lake in surface layer, the steps include:
It a) is that the close of 30-50cm knits bamboo stick (those skilled in the art in lakebed substrate improvement region setting height Can prepare), it prevents the diffusion of improvement matrix and is lost;
B) the ecological matrix material prepared is uniformly spilled on lake surface and is sunk to lakebed, paving is spilt with a thickness of 10- 20cm;
C) kind planting submerged plant improves region in substrate, is managed and conserves to submerged plant, rainy days or transparency Lower region increases water surface intensity of illumination 5000-10000lx, the trimming for carrying out plant leaf and the plant that decays by additional light source Object: the residual branch that rots, death or withered plant remove salvage.In the soft high organic bed mud lake of surface layer submerged plant at Motility rate up to 90% or more, repair area's water body be improved significantly, 15cm or more, bed mud surface layer (0- can be improved in water transparency 10cm) organic matter, total nitrogen and total tp removal rate can reach 55%, 10% and 25% or more.
The submerged plant planting method are as follows: wrap up above-mentioned substrate improved materials with degradable nonwoven fabrics and be prepared into plantation Submerged plant is transplanted in carrier by carrier, sheds in lake surface into river bed;
The submerged plant be water caltrop, eel grass, Haloragidaceae Myriophyllum spicatum, p.malaianus, Potamogeton maackianu, hornwort, she Happy algae and black algae is one such or two to eight kinds any combination.
Compared with prior art, the present invention having the following advantages that and effect:
1, technological operation is simple, low in cost, environmental benefit and good in economic efficiency;
2, submerged plant in the soft high organic bed mud lake of surface layer can be effectively solved to be difficult to be colonized, be difficult to carry out ecology and repair The problems such as journey of returning to work;
3, kaolin macro- and trace-element beneficial to biological growth and development containing there are many, is beneficial to determining for submerged plant The stabilization of plant and procreation and water environment.Calper calcium peroxide can increase the dissolved oxygen concentration of bed mud and bottom water body, be conducive to improve Water quality accelerates the removal of organic matter in bed mud, further promotes plant growth.The porous structure of enviroment protective ceramic filter bulb makes plant roots System will not rot because of anoxic, and improvement substrate can adsorb in situ and accelerate the pollutants such as mineralising bed mud organic matter, and repair in situ Nutrient source is provided for submerged plant primary growth while multiple bed mud, promotes root system of plant field planting and growth, it is raw to be conducive to waters The recovery and building of the entire ecosystem are accelerated in the recovery of state environment;
4, submerged plant survival rate is repaired area's water body and is obtained up to 90% or more in the soft high organic bed mud in surface layer lake It is obviously improved, 15cm or more can be improved in water transparency, and bed mud surface layer (0-10cm) organic matter, total nitrogen and total tp removal rate are reachable To 55%, 10% and 25% or more.
Specific embodiment
In order to better understand the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention Content is not limited solely to the following examples.
Embodiment 1:
A kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, it by following mass fraction raw material It is made:
Wherein: a kind of enviroment protective ceramic filter bulb, it is made of the raw material of following mass fraction:
A kind of preparation method of the substrate improved materials of the soft high organic bed mud shallow lake in surface layer, the steps include:
1) raw material for selecting clay, kaolin, enviroment protective ceramic filter bulb and calper calcium peroxide to improve for substrate;
2) enviroment protective ceramic filter bulb is placed in dilute hydrochloric acid (mass fraction 5%) after impregnating 5h, is washed till neutrality with clear water, dries It is spare;Using industrial residue magnesium slag, flyash, gangue, clay as raw material, then plus pore former (polyphenyl enviroment protective ceramic filter bulb is Ethylene particle) and the ingredients such as binder (carboxymethyl cellulose and silica solution) fire made of magnesium slag enviroment protective ceramic filter bulb it is (related Detailed process is prepared see ceramic journal, in March, 2010, the 1st phase of volume 31, the regulation of the magnesium slag porous ceramic filter materials porosity);
3) clay, kaolin, calper calcium peroxide and treated ceramic filtration ball are mixed by above-mentioned mass percent, is prepared into Substrate improves ecological matrix material;
Using industrial residue magnesium slag, flyash, gangue, Low-quality clay as raw material, then the enviroment protective ceramic filter bulb is The ingredients such as pore former (granules of polystyrene) and binder (carboxymethyl cellulose and silica solution) are added to fire according to the above ratio (related preparation detailed process see ceramic journal, in March, 2010, the 1st phase of volume 31, the magnesium slag porous ceramic filter materials porosity Regulation).
A kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, it by following mass fraction raw material (%) is made:
Embodiment 2 3 4 5 6 7 8 9 10
Clay 70 70 65 65 65 62 60 60 60
Kaolin 20 20 15 15 18 18 20 20 18
Enviroment protective ceramic filter bulb 18 15 15 16 12 18 15 16 18
Calper calcium peroxide 2 5 5 4 5 2 5 4 4
It is total 100 100 100 100 100 100 100 100 100
Its preparation step is same as Example 1.
A kind of restorative procedure of the soft high organic bed mud shallow lake in surface layer, the steps include:
1) bamboo stick is knitted in lakebed substrate improvement region setting height about 30 or 35 or 40 or 45 or the close of 50cm, prevents from changing The diffusion of well-founded matter and loss;
2) present invention is implemented in the Ecological Restoration Area of the soft high organic bed mud shallow lake in Zhejiang Province surface layer, The host material prepared is uniformly spilled into lakebed on the demonstration area lake surface, paving spill with a thickness of 10 or 13 or 15 or 17 or 20cm;
3) after paving spills 1 or 2d, above-mentioned substrate improved materials is wrapped up with degradable nonwoven fabrics and are prepared into plantation carrier, will be about 5cm water caltrop, eel grass, Haloragidaceae Myriophyllum spicatum, p.malaianus, Potamogeton maackianu, hornwort, waterweed and black algae seedling replanting arrive In carrier, in lake surface uniformly shed into lakebed (planting density be 60 plants/m2).Initial planting rainy days or transparency lower region (transparency is less than 0.5m) increases water surface intensity of illumination 5000lx by additional light source, and carries out periodic monitoring and maintenance, plants After the completion first 2 weeks, monitoring cycle was every 2 days 1 time, and the 3rd or 4 or 5 or 6 or 7 or 8 week, 1 times a week, hereafter monitoring cycle is Monthly monitor 1 time.Monitoring index are as follows: submerged plant growth situation, cover degree, biomass etc..It is clear in time for field monitoring situation Except the plant for salvaging rot residual branch and death or floating.
After plantation 6 months, water caltrop, eel grass, Haloragidaceae Myriophyllum spicatum, p.malaianus, Potamogeton maackianu, hornwort, waterweed And black algae survival rate, up to 90%, planting area 70% is covered by water plant, lake reparation area bed mud surface layer (0-10cm) has Machine object, total nitrogen and total tp removal rate respectively reach 55%, 10% and 20% or more.

Claims (7)

1. a kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer, based on mass fraction, it is by following original Material is made:
The preparation step of the substrate improved materials is:
1) raw material for selecting clay, kaolin, enviroment protective ceramic filter bulb and calper calcium peroxide to improve for substrate;
2) enviroment protective ceramic filter bulb is placed in dilute hydrochloric acid mass fraction 5%-10% after impregnating 2-5h, is washed till neutrality with clear water, dries It is dry;
3) by clay, kaolin, calper calcium peroxide and treated that ceramic filtration ball mixes by a certain percentage, substrate improvement material is made Material.
2. a kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer according to claim 1, special Sign is:
3. a kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer according to claim 1, special Sign is:
4. a kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer according to claim 1, special Sign is:
5. a kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer according to claim 1, special Sign is:
6. a kind of substrate improved materials of the soft high organic bed mud shallow lake in surface layer according to claim 1, special Sign is:
7. substrate improved materials described in claim 1 are to the method for the soft high organic bed mud shallow lake reparation in surface layer, Step is:
A) it is that the close of 30-50cm knits bamboo stick in lakebed substrate improvement region setting height, prevents the diffusion of improvement matrix and be lost;
B) the substrate improved materials prepared are uniformly spilled on lake surface and are sunk to lakebed, paving is spilt with a thickness of 10-20cm;
C) kind planting submerged plant improves region in substrate, is managed and conserves to submerged plant, rainy days or transparency are lower Region increases water surface intensity of illumination 5000-10000lx by additional light source, carries out the trimming of plant leaf and the plant that decays, corruption Rotten residual branch, death or withered plant remove salvage;
The submerged plant planting method are as follows: be prepared into plantation carrier with the above-mentioned substrate improved materials of non-woven wraps, will sink Water plant transplantation is shed in lake surface into lakebed into carrier;
The submerged plant is water caltrop, eel grass, Haloragidaceae Myriophyllum spicatum, p.malaianus, Potamogeton maackianu, hornwort, waterweed And black algae is one such or two to eight kinds any combination.
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CN109534632A (en) * 2017-09-21 2019-03-29 天津大学 A kind of submerged plant-improver joint improves the in-situ remediation method of black-odor riverway bed mud
CN107673478A (en) * 2017-10-31 2018-02-09 中冶华天工程技术有限公司 A kind of restoration methods of the changeable waters submerged plant of lake hydrological
CN108358682A (en) * 2018-02-09 2018-08-03 中国科学院水生生物研究所 A kind of ecological environment-friendly type submerged plant growth accelerating agent and preparation method and application
CN108781580B (en) * 2018-06-11 2021-09-07 中国科学院南京地理与湖泊研究所 Method for quickly constructing lake clear water type ecosystem by newly excavated hard sediments
CN108849468B (en) * 2018-06-11 2021-06-15 中国科学院南京地理与湖泊研究所 Ecological restoration method for submerged plants in urban lakes
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CN110818107A (en) * 2019-11-30 2020-02-21 中冶南方都市环保工程技术股份有限公司 Phosphorus-fixing oxygen-releasing material and preparation method and application thereof

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CN104193126A (en) * 2014-08-28 2014-12-10 中国科学院水生生物研究所 Ecological substrate for hard-substrate shallow lake as well as preparation method for ecological substrate and substrate improving method

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