CN101428909A - Composite artificial ecological floating island and construction method thereof - Google Patents
Composite artificial ecological floating island and construction method thereof Download PDFInfo
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- CN101428909A CN101428909A CNA2008102369443A CN200810236944A CN101428909A CN 101428909 A CN101428909 A CN 101428909A CN A2008102369443 A CNA2008102369443 A CN A2008102369443A CN 200810236944 A CN200810236944 A CN 200810236944A CN 101428909 A CN101428909 A CN 101428909A
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Biological Treatment Of Waste Water (AREA)
Abstract
本发明公开了一种复合人工生态浮岛及构建方法，该浮岛包括一个或若干污泥生态浮岛单元和若干藻菌生物膜载体单元，构建步骤是：以无害化处理后污泥粉末、轻质材料和无机粘合剂为原料制成污泥生态浮岛单元；将多孔性高分子轻质悬浮填料简单加工制成藻菌生物膜载体单元，将其预处理后用柔性材料固定在污泥生态浮岛上，各浮岛单元之间通过海绵或聚苯乙烯泡沫柔性连接。本发明原料易得、成本低，化学性质稳定、环境友好，无二次污染，且合理利用污水处理厂的废弃污泥，使城市污泥减量化，达到废弃资源再利用的目的；可栽种净水植物使之与微生物形成微型生态群落，对污染水体产生全方位立体净化作用，净水效果较单一性浮岛和藻菌生物膜载体更佳。The invention discloses a composite artificial ecological floating island and its construction method. The floating island includes one or several sludge ecological floating island units and several algae biofilm carrier units. , lightweight materials and inorganic binders are used as raw materials to make sludge ecological floating island units; the porous polymer light suspension fillers are simply processed into algae biofilm carrier units, which are fixed on flexible materials after pretreatment On the sludge ecological floating island, each floating island unit is flexibly connected by sponge or polystyrene foam. The invention has easy-to-obtain raw materials, low cost, stable chemical properties, environmental friendliness, no secondary pollution, and rational use of waste sludge from sewage treatment plants to reduce urban sludge and achieve the purpose of reusing waste resources; it can be planted The water purification plants make it form a micro-ecological community with microorganisms, and have an all-round three-dimensional purification effect on polluted water bodies. The water purification effect is better than that of a single floating island and algae biofilm carrier.
Description
Technical field
The present invention relates to a kind of composite artificial ecological floating island and construction process, belong to water environment treatment and restoration of the ecosystem field.
Background technology
Body eutrophication is the Universal Problems of our times water surrounding.Rapid growth of economy brings heavy load for various natural water bodies, and under the comprehensive action of foreign matter and endogenous pollution, nutritive salt surplus in the water body causes the excessive breeding of plant plankton, and the result causes water quality deterioration.The water of river and lake eutrophication comes down to ecosystem degenerate problem, should explore the new way of administering water pollution with theory, thinking, the method for ecology.
The artificial article floating island technology is a kind of biological means of eutrophication water repairing and treating.This technology is according to the nature self-law, manually the terrestrial plant of high waterplant or improvement, with the chinampa as carrier, plant the water surface of eutrophication water, by absorption, adsorption and the species competition restriction or checking relation in five elements mechanism of plant root, cut down nitrogen, phosphorus and organic substance in the eutrophication water, thereby reach the effect that purifies water, and the excessive breeding of plant plankton in the water body produced effectively control, can build superaqual landscape again simultaneously.Facts have proved that some durability against pollutions of plantation are strong especially in polluted-water, normal growth under the ecological condition, and the higher plant of gathering in the crops easily in position can play good cleaning action to water body.
The general structure principle of artificial article floating island have following some: 1. material proportion is little, and the source is sufficient, environmental protection, protection against corrosion, ageing-resistant, but repeated multiple times is used; 2. have intensity preferably, can resist and impact than high sea; 3. adopt to flexibly connect, chinampa integral body can be fluctuated with water body; 4. have the plant cultivating hole, can satisfy plant long term growth planting density.5. have the packaged type operation, unpowered, nothing is safeguarded characteristics such as long service life; 6. for satisfying the view requirement, the chinampa can be made different shapes.
20th century the seventies, Germany has at first proposed the notion of " artificial floating island ", subsequently Japan to begin to use the artificial floating island made from polystyrene etc. be that fishes and shrimps etc. provide the spawning place.Along with becoming increasingly conspicuous of water environmental problems, the enhancing gradually of people's environmental consciousness, artificial floating island is applied to the water environment treatment field again widely.20th century the eighties, units such as lake, Chinese Academy of Sciences Nanjing and Geographical Study institute, academy of agricultural sciences, Fujian Province, with foamed polystyrene board as float carrier, spread plant behind the mud or with polystyrene as the buoyancy aid main material, the shop constitutes each kind of plant of buoyancy aid cultivation bed plantation with bamboo bar, propylene bag, plastics film etc., for good try has been made in the natural water area plant growing.Foamed polystyrene board is with low cost with it, characteristics such as buoyancy is powerful, stable performance, is subjected to people's favor.Therefore this carrier obtains using very widely, and has obtained huge effect, utilizes the chinampa to carry out occupying an leading position in landlocked water body treating and the reparation at present at home, but meanwhile, has also produced alarming " white pollution " problem.
Up to the present, the material that makes up artificial article floating island mainly is an organic polymer material, as foamed polystyrene board, and propylene bag, window screening bag, Ball-type packing etc.As everyone knows, the organic polymer material of these synthetic be nature do not have, damage easily, under general condition be difficult to degraded, be difficult to recycle, the secondary pollution risk is arranged.Use these materials in large quantities, will inevitably cause serious solid useless the pollution.So, water pollutes and is transformed into useless admittedly the pollution, and promptly so-called " pollution transportation ", the mode of this improvement environment is uneconomic, does not also meet the requirement of environment sustainable development.In addition, the research on current employing inorganic materials making chinampa is still rare, though indivedual research can obtain effect preferably, also there are the drawback that is difficult to overcome in its making method, cost and working service aspect, and fail to form large-scale application so far.Therefore, the ecological floating island of exploration and development new medium is very necessary.
Municipal sludge is the byproduct after the sewage disposal, is a kind of extremely complicated heterogeneous body of being made up of organic relic, bacterium thalline, parasitic ovum, inorganic particle, colloid etc.In recent years, along with the raising year by year of quickening of urbanization process and wastewater treatment rate, China's sludge from wastewater treatment plant generation sharply increases.In the bigger city of China's municipal sludge quantity discharged, Beijing, Shanghai the day sludge discharge reach 3000 respectively, more than 4500 ton.The disposed of sewage one day sewage work of 50 ten thousand steres produces about 250 tons in mud every day.The annual discharging in general municipal sewage plant dewatered sludge about 30 * 10
4Ton, and with the speed increment in every year about 10%.In addition, also increased the requirement that dephosphorization is denitrogenated advanced treatment in recent years in the sewage disposal, developed thus and the higher biologic process for treating sewage of many sludge discharges.China's municipal sewage treatment is started late, the early stage sewage work that builds, owing to there is not strict mud discharging supervision, generally sewage and sludge treatment unit are peeled away, often ignore sludge treatment, even will not do the simple landfill of mud, the stacking of any processing in order to save working cost, and cause " mud besieged city " phenomenon to begin to occur, in big area appropriation of land resource, bring great potential safety hazard to ecotope.Therefore, explore municipal sludge innoxious, the minimizing treatment process is very urgent.
The phycomycete technology of biological membrane is a kind of polluted-water original position purification techniques, and the phycomycete biofilm carrier is called " artificial pasture and water " again.It for algae, bacterium provide the growth place, makes it absorb nutritive substances such as nitrogen, phosphorus in the water body by lay the artificial carrier that porous polymer materials is made in eutrophication water in process of growth, alleviates even eliminate the eutrophication pollution of water body.The phycomycete microbial film is a kind of efficient cogeneration system, the purification of sewage is had concurrently the synergy of algae, bacterium.The phycomycete technology of biological membrane is applicable to that mainly contaminated lake, reservoir, river etc. and water quality become the improvement of natural water body water quality such as bad fountain, fish pond, especially are suitable for the water correction engineering of small-sized landscape water body in the city.
The phycomycete microbial film generally has following characteristics: 1. pure inertia material, and affine in water ecological setting, stable in properties in water can not decomposed or react, and physical environment is not had any pollution, and lower cost for material, wide material sources; 2. high-specific surface area can provide competent growth area for algae, mushroom, to reach higher cleaning water; 3. cellular structure is for microflora provides suitable living environment and forms the little A/O processing environment of ideal.
The phycomycete technology of biological membrane applies to polluted-water improvement and starts from last century end, belongs to novel polluted-water in-situ treatment technology.So far, the comparatively sophisticated phycomycete microbial film of technology has U.S. plum to pacify " the climing ecological matrix of A Ke " of aquatic scientific ﹠ technical corporation exploitation and " the artificial pasture and water-phycomycete microbial film " of Inst. of Hydrobiology, Chinese Academy of Sciences's development auspiciously.Use above-mentioned two kinds of phycomycete technology of biological membrane all can administer reparation to eutrophication water fast and effectively, and energy long-time maintenance water quality, in addition, also have advantages such as investment cost is low, installation administration simple, instant effect, and can compatible aquaculture, landscape construction etc., for the improvement of various natures and artificial water, safeguard new way is provided.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of composite artificial ecological floating island and construction process are provided, two kinds of different water purification unit combination are adopted on this chinampa, prescription is reasonable, environmental protection, long service life, reusable, discarded back is recyclable to be utilized again.In addition, the inventive method technology is simple, no energy consumption, and material source is extensive and can realize changing waste into resources, and is with low cost, suitable extensively popularization.Growth by algae, bacterium on plant on the unit, chinampa and the phycomycete biofilm carrier unit, form little ecologic community, comprehensive purifying water body, supernutrition salt (TN, TP clearance can reach 76.3% and 87.2% respectively) in the efficient removal water body, decontamination, improve water quality, strengthen water landscape, and non-secondary pollution.
For achieving the above object, technical scheme provided by the invention is: a kind of composite artificial ecological floating island, it comprises one or several mud ecological floating island unit and some phycomycete biofilm carriers unit, and phycomycete biofilm carrier unit and mud ecological floating island unit flexibly connect; Mud ecological floating island unit is for comprising the coagulation cured article of mud powder, light material, inorganic adhesive and water after the harmless treatment at least, and the mud powder after the harmless treatment, light material, inorganic adhesive are that mud powder 60%～77%, light material 3.6%～8%, inorganic adhesive 19.4%～32% mix with water by mass percentage; Phycomycete biofilm carrier unit comprises porous polymer light suspended filler and phycomycete microbial film, and the phycomycete microbial film flexibly connects by sponge or polystyrene foamed material between each unit, mud chinampa attached to the porous polymer light suspended filler surface.
The present invention also provides the construction process of above-mentioned composite artificial ecological floating island, specifically may further comprise the steps:
(1) the unitary structure of mud ecological floating island:
A. raw material is prepared: the waste sludge of sewage work is carried out the mud powder that obtains after the harmless treatment, light material, inorganic adhesive;
B. make mould, batch mixing stirring: make mould with the rigidity material, the described mud powder of step a, light material and inorganic adhesive are respectively with mass percentage content: 3.6%～8%, 19.4%～32% proportioning 60%～77%, adds water and stirs;
C. curing molding: the mixture after will stirring is inserted in the mould, compress compacting, then the metal hook fixed point is inserted mixture, metal hook is fixed after thing curing to be mixed, drying and the moulding, remove mould, obtain mud ecological floating island unit finished product after the moulding;
(2) the unitary structure of phycomycete biofilm carrier:
A. material is prepared: adopt porous polymer light suspended filler as the phycomycete biofilm carrier.
B. materials processing: porous polymer light suspended filler is cut out, and install the rope form flexible materials at the one end, the other end installs a bag shape flexible materials;
C. pre-treatment: the water purification algae is adopted culture medium culturing in large-scale incubator, the porous polymer light suspended filler that to cut out places in the incubator again, it is suspended in the case in the nutrient solution as carrier, cultivated 6～10 days, and occurred bubble on the carrier and indicate that the algae film forms on carrier element;
(3) mud ecological floating island unit and the unitary combination of phycomycete biofilm carrier:
The rope form flexible materials of phycomycete biofilm carrier one end is firmly lain on the bottom metal hook of mud chinampa, phycomycete biofilm carrier unit and unit, mud chinampa are flexibly connected, large-scale chinampa is connected to form by the unit, chinampa, flexibly connects with sponge or polystyrene foamed material between each unit, chinampa.
Wherein, can select for use timber, plastics, polystyrene foam plate to make mould, mold shape and thickness are decided according to the view needs, can be at the mold bottom stuck-module, to stay the plant cultivating hole.Amount of water was not in 3～8 minutes with batch mixing and drips a shape and fall and be advisable when batch mixing stirred, and churning time is 5～30 minutes.The mixture solidified molding time is looked temperature, difference such as ventilation situation and chinampa thickness and different (ventilating, temperature is controlled at 15～35 ℃, and when chinampa thickness was 3～12cm, indoor seasoning was shaped to 2～5 day time).Porous polymer light suspended filler adopts stable in properties, water-fast corrosion-resistant, snappiness good, specific surface area is big, microorganic adhesion is good polyethylene or polypropylene semi soft packing, size is decided according to administering the water body needs, the rope form flexible materials that its two ends install can be selected the nylon in lightweight rope for use, and packed flexible materials can be selected the less nylon net bag of mesh for use.The continuous algae of the optional water of water purification algae, carefully quiver algae, hydrodictyon reticulatum and grid split algae, and at intensity of illumination 2700～2900 1x, light 12:12～14:10 cultivates under 22～26 ℃ of conditions of temperature.
Can in the implantation hole on mud chinampa, plant the water purification plant, available in case of necessity flexible materials (as sponge, polystyrene foam) is fixing, suitable scheelite piece or other weights are placed the bag shape flexible materials (as nylon net bag) of phycomycete biofilm carrier, composite artificial ecological floating island is put into water body, make plant root be immersed in water body, phycomycete biofilm carrier drawout in water body, the chinampa floats on the water surface.Arable water purification plant such as grass: a kind of or arbitrary combination in reed, reed, rye grass, Caulis Miscanthis floriduli, Herba Eleusines Indicae, the paddy rice; Or aroid: calamus, Rhizome of Grass leaf Sweelflag, Alocasia ordora; Or sand-grass section plant: a kind of or arbitrary combination in parasol grass, the Medulla Junci; Or other section's platymisciums: a kind of or arbitrary combination in chrysanthemum mandarin duck tail, cattail, Canna generalis Bailey, Radix Rumicis, arrowhead, common calla, Herba Tagetis Patulae, mater convolvulus, flame nettle, red sage, Flos Celosiae Cristatae, petunia, the water spinach.The use step of this composite artificial ecological floating island is:
A. eutrophication water is put on the compound chinampa after will making up, and determines size, the quantity that chinampa area coverage and phycomycete biofilm carrier use according to water surface area size and pollution level.Large-scale chinampa can be connected to form by the unit, chinampa, and available sponge or polystyrene foamed material flexibly connect between each unit, chinampa.Throw in the visual staying water area of chinampa unit number and decide.
B. aquatic or terrestrial plant such as rye grass, Herba Tagetis Patulae, mater convolvulus, Caulis Miscanthis floriduli, flame nettle, red sage, Flos Celosiae Cristatae, petunia, water spinach etc. can be planted in the implantation hole on chinampa, available in case of necessity sponge or other flexible materialss such as polystyrene foam are fixed.Nutritive salt on the mud chinampa in the water purification plant absorbing water body is kept self growth, grows flourishing root system, can adsorb a large amount of microorganisms, reaches the purpose of purifying water body indirectly by root exudates.
C. algae, bacterium can and form microbial film attached to the surface growth of porous phycomycete biofilm carrier, form the rhizosphere circle with roots of plants on the mud chinampa, promote mutually growth, breeding, become little ecologic community of mutualism, and microbial film is aging can be decomposed by near root exudates after coming off.
The present invention compared with prior art has the following advantages:
1. the unitary matrix in mud chinampa is sewage work's waste sludge after the harmless treatment among the present invention, has realized changing waste into resources, and environmental protection when promoting the waste sludge minimizing, realizes comparatively considerable economic and social benefit.
2. the unitary material of phycomycete biofilm carrier is a porous polymer light suspended filler among the present invention, its material is the inertia macromolecular material, stable in properties, pollution-free, material source is extensive, with low cost, algae, bacterium are had absorption property preferably, can in polluted-water, form microbial film faster through after the pre-treatment.
Among the present invention with two kinds of multi-form water purification unit combination, bring into play each unitary advantage, make the microorganism on the plant and phycomycete microbial film on the unit, chinampa form little ecologic community of mutualism, produce rhizosphere circle effect, polluted-water is carried out synergistic purification.Two kinds of unitary combinations of water purification are than single chinampa or phycomycete membrane carrier can be obtained better purifying water effect in the past.
4. long service life of the present invention (2～5 years), reusable, discarded back is recyclable to be utilized again.
5. two kinds of unitary transportations of water purification among the present invention, combination, construction are simple and convenient.
6. the supporting capacity of composite artificial ecological floating island, biofilm ability and impact resistance be on waiting that administering the polluted-water particular case decides, and can change the optimum balance that mud chinampa proportioning raw materials and phycomycete biofilm carrier size reach regulation effect and treatment cost by appropriateness.
7. the composite artificial ecological floating island manufacture craft is simple, energy consumption is low, cost is low, stable in properties, easy construction, suitablely extensively promotes.
In sum, method environmental protection of the present invention, make simple, economical and practical, can effectively improve the water quality condition of eutrophication water, improve landscape value, alleviate the pressure that sewage work's waste sludge causes ecotope simultaneously, have great importance for environment, economy and social Sustainable development.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is described further:
Table 1. composite artificial ecological floating island is made the composition of raw materials table
Table 2 WC medium component
| Chemical ingredients | Concentration (g/L) | Chemical ingredients | Concentration (g/L) |
| CaCl 2·2H 2O | 0.0368 | Na 2EDTA | 0.00436 |
| MgSO 4·7H 2O | 0.037 | FeCl 3·6H 2O | 0.00315 |
| NaHCO 3 | 0.0126 | CuSO 4·5H 2O | 0.00001 |
| K 2HPO 4·3H 2O | 0.0114 | ZnSO 4·7H 2O | 0.000022 |
| NaNO 3 | 0.085 | CoCl 2·6H 2O | 0.00001 |
| Na 2SiO 3·5H 2O | 0.0284 | MnCl 2·4H 2O | 0.0018 |
| TES?buffer | 0.115 | Na 2MoO 4·2H 2O | 0.000006 |
| thiamin?HCl | 0.0001 | biotin | 0.0000005 |
Embodiment 1:
1. early-stage preparations:
(1) on the-spot investigation: test site is a manmade landscape, artificial landscape lake in the Wuhan University, now has been subjected to eutrophication pollution;
(2) feedstock production: the unit, mud chinampa in the composite artificial ecological floating island is a raw material with outskirts of a town, Wuhan City one sewage work's waste sludge, and dehydration is dried, and kills wherein pathogenic agent and parasite through high bake; Light material is selected the ESP foam beads for use; Inorganic adhesive adopts high-sulfur type HAS soil-solidified-agent; Metal hook adopts the iron wire hook of diameter 4mm; Phycomycete biofilm carrier unit in the composite artificial ecological floating island is a raw material with polyethylene (or polypropylene) medium-soft protruded packing; Be connected the nylon rope that material adopts lightweight, water-tight corrosion-proof on phycomycete biofilm carrier unit and the unit, mud chinampa between the metal hook;
(3) unit, mud chinampa Mold Making: the uncovered square box of making 100cm (length) * 100cm (wide) * 5cm (height) size with timber, fix 36 cylindric polystyrene foam block (high 5cm, diameter of section 2.5cm) to stay the plant cultivating hole with nail at the bottom of the box;
(4) processing of polyethylene (or polypropylene) medium-soft protruded packing: press size in the table 1, polyethylene (or polypropylene) medium-soft protruded packing is cut out, at punching two ends, an end is fastened nylon rope, and the other end is fastened the less nylon net bag of mesh.
2. NEW TYPE OF COMPOSITE artificial ecological floating island production phase:
(1) quantitatively takes by weighing mud powder, light material ESP foam beads, high-sulfur type HAS soil-solidified-agent after the harmless treatment by proportioning described in the table 1;
(2) the unitary batch mixing in mud chinampa stirs: above-mentioned mud powder, light material ESP foam beads and high-sulfur type HAS soil-solidified-agent are mixed, and the limit adds the waterside stirs, and is the thick water that can stop to add to mixture.Continue then to stir, churning time is 25 or 28 or 30 minutes;
(3) the unitary curing molding in mud chinampa: the above-mentioned mixture that stirs is poured in the mould, and fixed point is inserted 6 or 9 metal hooks.Indoor, ventilate, temperature is under 15～25 ℃ of conditions, placing 4 or 5 days is dry solidification.Remove timber mould and polystyrene foam block then, promptly get the big or small 100cm * 100cm * 5cm that is, have 36 plantation holes and unit, chinampa with 6 or 9 metal hooks;
(4) phycomycete biofilm carrier unit pre-treatment: the continuous algae of water being inoculated in large-scale incubator, using WC substratum (the WC medium component is as described in Table 2), is 2800 1x in intensity of illumination, light 14:10, and temperature is to cultivate under 22 ℃ the condition.Polyethylene (or polypropylene) the medium-soft protruded packing of cutting out is placed in the incubator, it is suspended in the interior nutrient solution of case, cultivated 6～10 days, occur bubble on the carrier and indicate that the algae film forms on carrier element.
(5) unit, mud chinampa with 10 above-mentioned 100cm * 100cm * 5cm specification is divided into two lines, and 5 head and the tail of delegation connect, parallel in the ranks the connection., connect in the slit in unit, mud chinampa and sandwich sponge or foam as connecting material with iron wire or nylon rope, make that the collision each other of unit, mud chinampa is cushioned when water fluctuation, avoid colliding impaired with protection unit, mud chinampa.
The combination of (6) two assembly of elements: after microbial film forms on the phycomycete biofilm carrier, an end of phycomycete biofilm carrier unitary system nylon rope is lain on the unitary metal hanger in mud chinampa, guarantee that it is loosening, do not come off, form composite artificial ecological floating island;
3. put into water body
(1) in hole, mud chinampa, plants water purification plant calamus, reed, Canna generalis Bailey, and fixed with sponge.High 15～the 30cm of calamus plant, the high 100～120cm of reed plant, the high 120～180cm of Canna generalis Bailey plant put into and guarantee that the plant root does not have the phycomycete biofilm carrier of entry and bottom, chinampa vertically to sprawl at water body behind the water body;
(2) placed in water body 15 days on compound chinampa, during 15～28 ℃ of temperature, and 1 medium-scale rainfall is arranged.Calamus, reed, Canna generalis Bailey plant all grow normally on the unit, mud chinampa, and survival rate is respectively 94.4%, 91.7% and 86.1%, and each plant biomass increases obviously, and the leaf look normal; The continuous algae of water grows fine on the phycomycete biofilm carrier, forms the green bio film.
(3) water quality analysis to this man-made lake before and after the test shows, the TP mass concentration is 0.47mgL in preceding this water body of test
-1, NH
4 +-N mass concentration is 1.33mgL
-1The TP mass concentration is 0.06mgL in the water body of test back
-1, NH
4 +-N mass concentration is 0.34mgL
-1, TP and NH
4 +The clearance of-N is respectively 87.2% and 74.4%.The result shows that the NEW TYPE OF COMPOSITE artificial ecological floating island has been obtained very good effect to the improvement of this eutrophication water.
Embodiment 2
1. early-stage preparations:
(1) on the-spot investigation: test site is the waste and old water reservoir of Wuhan City factory (1000cm * 800cm * 200cm), inculcate tap water and sanitary sewage with simulation eutrophication water, depth of water 150cm in the pond;
(2) feedstock production: the unit, mud chinampa in the composite artificial ecological floating island is a raw material with outskirts of a town, Wuhan City one sewage work's waste sludge, and dehydration is dried, and kills wherein pathogenic agent and parasite through high bake; Light material is selected the ESP foam beads for use; Inorganic adhesive adopts high-sulfur type HAS soil-solidified-agent; Metal hook adopts the iron wire hook of diameter 4mm; Phycomycete biofilm carrier unit in the composite artificial ecological floating island is a raw material with polyethylene (or polypropylene) medium-soft protruded packing; Be connected the nylon rope that material adopts lightweight, water-tight corrosion-proof on phycomycete biofilm carrier unit and the unit, mud chinampa between the metal hook;
(3) unit, mud chinampa Mold Making: make the uncovered square box of 100cm * 100cm * 5cm size with timber, fix 36 cylindric polystyrene foam block (high 5cm, diameter of section 2.5cm) to stay the plant cultivating hole with nail at the bottom of the box;
(4) to the processing of polyethylene (or polypropylene) medium-soft protruded packing: by size in the table 1 polyethylene (or polypropylene) medium-soft protruded packing is cut out, at punching two ends, an end is fastened nylon rope, and the other end is fastened the less nylon net bag of mesh.
2. NEW TYPE OF COMPOSITE artificial ecological floating island production phase:
(1) quantitatively takes by weighing mud powder, light material ESP foam beads, high-sulfur type HAS soil-solidified-agent after the harmless treatment by proportioning described in the table 1;
(2) the unitary batch mixing in mud chinampa stirs: above-mentioned mud powder, light material ESP foam beads and high-sulfur type HAS soil-solidified-agent are mixed, and the limit adds the waterside stirs, and is the thick water that can stop to add to mixture.Continue then to stir, churning time is about 30 minutes;
(3) the unitary curing molding in mud chinampa: the above-mentioned mixture that stirs is poured in the mould, and fixed point is inserted 6 or 9 metal hooks.At room ventilated, temperature is under 15～25 ℃ of conditions, and placing 4 or 5 days is dry solidification.Remove timber mould and polystyrene foam block then, promptly get the big or small 100cm * 100cm * 5cm that is, have 36 plantation holes and unit, chinampa with 6 or 9 metal hooks;
(4) phycomycete biofilm carrier unit pre-treatment: in large-scale incubator, use the continuous algae of water in the WC substratum (the WC nutrient media components is as shown in table 2), in intensity of illumination is 2850 1x, light 13:10, temperature is to cultivate under 23 ℃ the condition, the polyethylene that to cut out (or polypropylene) medium-soft protruded packing places in the incubator again, it is suspended in the interior nutrient solution of case, cultivated 6～10 days, occur bubble on the carrier and indicate that the algae film forms on carrier element.
(5) unit, mud chinampa with 4 above-mentioned 100cm * 100cm * 5cm specification is divided into two lines, and 2 head and the tail of delegation connect, parallel in the ranks the connection., connect in the slit in unit, mud chinampa and sandwich sponge or foam as connecting material with iron wire or nylon rope, make that the collision each other of unit, mud chinampa is cushioned when water fluctuation, avoid colliding impaired with protection unit, mud chinampa.
The combination of (6) two assembly of elements: after microbial film forms on the phycomycete biofilm carrier, an end of phycomycete biofilm carrier unitary system nylon rope is lain on the unitary metal hanger in mud chinampa, guarantee that it is loosening, do not come off, form composite artificial ecological floating island.
3. put into water body:
(1) in hole, mud chinampa, plants water purification plant reed, rye grass, Caulis Miscanthis floriduli, and fixed with sponge.Reed, rye grass, Caulis Miscanthis floriduli, high 20～the 35cm of reed plant, the high 35～48cm of rye grass plant, the high 100～170cm of Caulis Miscanthis floriduli plant put into and guarantee that the plant root does not have the phycomycete biofilm carrier of entry and bottom, chinampa vertically to sprawl at water body behind the water body;
(2) placed in water body 15 days on compound chinampa, during 13～25 ℃ of temperature, no rainfall.Reed, rye grass, Caulis Miscanthis floriduli plant all grow normally on the unit, mud chinampa, and survival rate is 89.5%, 87.7% and 86.8%, and each plant biomass increases obviously, and the leaf look normal; The continuous algae of water grows fine on the phycomycete biofilm carrier, forms the green bio film.
(3) water quality analysis to this Chi Shui before and after the test shows, the TP mass concentration is 0.79mgL in preceding this water body of test
-1, NH
4 +-N mass concentration is 6.53mgL
-1The TP mass concentration is 0.14mgL in the water body of test back
-1, NH
4 +-N mass concentration is 1.55mgL
-1, TP and NH
4 +The clearance of-N is respectively 82.3% and 76.3%.The result shows that the NEW TYPE OF COMPOSITE artificial ecological floating island has been obtained preferable effect to the removal of supernutrition salt in this simulation eutrophication water.
Mud is carried out harmless treatment, can adopt processing means such as burning, digestion and mummification.All adopt the high temperature drying method for treating in the present embodiment, waste sludge is dried or dewater, pulverize the back in 70～80 ℃ of high bake 50～70min, with kill harmful pathogenic agent and parasitic ovum to water content below 20%.
The specification of mould and block size, quantity can be decided according to view and water body needs, to the not influence of invention effect.
The continuous algae of the optional water of water purification algae kind, carefully quiver algae, hydrodictyon reticulatum and grid split algae, adopt WC substratum, HGZ substratum, BBM substratum and SE substratum respectively, select the continuous algae of the good water of purifying water effect in the present embodiment for use, cultivate in the WC substratum.
Claims (10)
1. a composite artificial ecological floating island is characterized in that it comprises one or several mud ecological floating island unit and some phycomycete biofilm carriers unit, and phycomycete biofilm carrier unit and mud ecological floating island unit flexibly connect; Mud ecological floating island unit is for comprising the coagulation cured article of mud powder, light material, inorganic adhesive and water after the harmless treatment at least, and the mud powder after the harmless treatment, light material, inorganic adhesive are that mud powder 60%～77%, light material 3.6%～8%, inorganic adhesive 19.4%～32% mix with water by mass percentage; Phycomycete biofilm carrier unit comprises porous polymer light suspended filler and phycomycete microbial film, and the phycomycete microbial film flexibly connects by sponge or polystyrene foamed material between each unit, mud chinampa attached to the porous polymer light suspended filler surface.
2. composite artificial ecological floating island according to claim 1 is characterized in that: light material is the ESP foam beads, and inorganic adhesive is a high-sulfur type HAS soil-solidified-agent.
3. composite artificial ecological floating island according to claim 1, it is characterized in that: flexible materials is rope form flexible materials or bag shape flexible materials, be installed in the two ends of porous polymer light suspended filler respectively, mud ecological floating island unit bottom is fixed with metal hook, and phycomycete biofilm carrier unit flexibly connects by metal hook and rope form flexible materials and mud ecological floating island unit.
4. composite artificial ecological floating island according to claim 1 is characterized in that: porous polymer light suspended filler is polyethylene or polypropylene semi soft packing.
5. composite artificial ecological floating island according to claim 3, it is characterized in that: each mud ecological floating island unit bottom fixed metal hook is 6 or 9, when metal hook is 9, each porous polymer light suspended filler long 50～60cm, wide 10～15cm, thick 0.5～0.8cm; When metal hook is 6, each porous polymer light suspended filler long 60～80cm, wide 20～30cm, thick 0.5～0.8cm.
6. the construction process of the described composite artificial ecological floating island of claim 1 is characterized in that may further comprise the steps:
(1) the unitary structure of mud ecological floating island:
A. raw material is prepared: the waste sludge of sewage work is carried out the mud powder that obtains after the harmless treatment, light material, inorganic adhesive;
B. make mould, batch mixing stirring: make mould with the rigidity material, the described mud powder of step a, light material and inorganic adhesive are respectively with mass percentage content: 3.6%～8%, 19.4%～32% proportioning 60%～77%, adds water and stirs;
C. curing molding: the mixture after will stirring is inserted in the mould, compresses compacting, then the metal hook fixed point is inserted mixture, and metal hook is fixed after thing curing to be mixed, drying and the moulding, removes mould, obtains mud ecological floating island unit finished product;
(2) the unitary structure of phycomycete biofilm carrier:
A. material is prepared: adopt porous polymer light suspended filler as the phycomycete biofilm carrier;
B. materials processing: porous polymer light suspended filler is cut out, and install the rope form flexible materials at the one end, the other end installs a bag shape flexible materials;
C. pre-treatment: the water purification algae is adopted culture medium culturing in large-scale incubator, the porous polymer light suspended filler that to cut out places in the incubator again, it is suspended in the case in the nutrient solution as carrier, cultivated 6～10 days, and occurred bubble on the carrier and indicate that the algae film forms on carrier element;
(3) mud ecological floating island unit and the unitary combination of phycomycete biofilm carrier:
The rope form flexible materials of phycomycete biofilm carrier one end is firmly lain on the bottom metal hook of mud chinampa, phycomycete biofilm carrier unit and unit, mud chinampa are flexibly connected, large-scale chinampa is connected to form by the unit, chinampa, flexibly connects with sponge or polystyrene foamed material between each unit, chinampa.
7. the construction process of composite artificial ecological floating island according to claim 6, it is characterized in that: light material is the ESP foam beads, inorganic adhesive is a high-sulfur type HAS soil-solidified-agent.
8. the construction process of composite artificial ecological floating island according to claim 6, it is characterized in that: porous polymer light suspended filler is polyethylene or polypropylene semi soft packing.
9. the construction process of composite artificial ecological floating island according to claim 6, it is characterized in that: each mud ecological floating island unit bottom fixed metal hook is 6 or 9, when metal hook is 9, each porous polymer light suspended filler long 50～60cm, wide 10～15cm, thick 0.5～0.8cm; When metal hook is 6, each porous polymer light suspended filler long 60～80cm, wide 20～30cm, thick 0.5～0.8cm.
10. the construction process of composite artificial ecological floating island according to claim 6 is characterized in that: plantation has the water purification plant in the unitary implantation hole of mud ecological floating island, fixes with sponge or polystyrene foam.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104150599A (en) * | 2014-04-29 | 2014-11-19 | 杭州蓝天园林生态科技股份有限公司 | Terrestrial plants and microorganisms combined biological floating island |
| CN104386877A (en) * | 2014-10-27 | 2015-03-04 | 无锡伊佩克科技有限公司 | Low-carbon sewage treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104150599A (en) * | 2014-04-29 | 2014-11-19 | 杭州蓝天园林生态科技股份有限公司 | Terrestrial plants and microorganisms combined biological floating island |
| CN104150599B (en) * | 2014-04-29 | 2016-01-13 | 杭州蓝天园林生态科技股份有限公司 | The biological floating island that a kind of terrestrial plant and microorganism combine |
| CN104386877A (en) * | 2014-10-27 | 2015-03-04 | 无锡伊佩克科技有限公司 | Low-carbon sewage treatment method |
| CN106587356A (en) * | 2016-12-05 | 2017-04-26 | 新奥科技发展有限公司 | Preparation method for biological membrane |
| CN106587356B (en) * | 2016-12-05 | 2019-07-19 | 新奥科技发展有限公司 | Biofilm preparation method |
| WO2018201733A1 (en) * | 2017-05-02 | 2018-11-08 | 河海大学 | Micro-ecological floating bed for aquaculture water purification and using method thereof |
| CN109956559A (en) * | 2019-04-11 | 2019-07-02 | 吉林建筑大学 | A new type of jellyfish-shaped three-dimensional ecological floating bed space device |
| CN110294576A (en) * | 2019-07-29 | 2019-10-01 | 新余山海企业服务有限公司 | A kind of river ecological water source purifying raft |
| CN110965438A (en) * | 2019-12-13 | 2020-04-07 | 中铁大桥局第七工程有限公司 | Construction method of high-liquid-limit low-CBR soil roadbed |
| CN111661930A (en) * | 2020-06-08 | 2020-09-15 | 浙江工业大学 | Method for repairing arsenic pollution in high-saline-alkali water body by using calcium ion enhanced blue algae-phycomycetes biomembrane |
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