CN100506707C - Controlled biomembrane landscape wetland sewage purification system and technique - Google Patents

Controlled biomembrane landscape wetland sewage purification system and technique Download PDF

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Publication number
CN100506707C
CN100506707C CNB2006100110350A CN200610011035A CN100506707C CN 100506707 C CN100506707 C CN 100506707C CN B2006100110350 A CNB2006100110350 A CN B2006100110350A CN 200610011035 A CN200610011035 A CN 200610011035A CN 100506707 C CN100506707 C CN 100506707C
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sewage
pond
controlled
artificial swamp
treating pond
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CN1919749A (en
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周应揆
陆可信
宁琼功
段集辉
陆可望
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ZHOU YINGKUI LU KEXIN NING QIONGGONG DUAN JIHUI LU KEWANG
ZHOU YINGKUI LU KEXIN NING QIO
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ZHOU YINGKUI LU KEXIN NING QIONGGONG DUAN JIHUI LU KEWANG
ZHOU YINGKUI LU KEXIN NING QIO
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses a landscape marshland effluent purifying system and technology of controllable biological film in the environmental protective domain, which is characterized by the following: integrating controllable biological film technology, artificial marshland technology and artificial landscape on the effluent purifying technology; improving purifying efficiency and scale obviously; decorating human life and working environment.

Description

Controlled biomembrane landscape wetland sewage purification system and technology
Technical field the present invention relates to a kind of sewage purification system and technology, is specifically related to a kind of controlled biomembrane landscape wetland sewage purification technology and system.The sewage purification technology that the present invention announces is the sewage purification technology that integrates controllable biological membrane technique, artificial swamp technology, reaches man-made tourist site.The sewage purification system of using this technology construction can purify dissimilar sewage effectively, beautify people's work and living environment.Belong to environmental technology field.
The background technology artificial swamp is the sewage disposal technology of always using both at home and abroad in recent years.This technology have cost low, use simple, maintenance and the low advantage of overhead charges, but certain limitation is arranged.Mainly show as: 1, the purification of sewage only depends on the self-purification of soil, plant and the microorganism of wetland to realize that efficient is low.That 2, purifies waste water is limited in scope.Limited to when handling sewage of different nature, incompetence purifies the sewage that contains special chemical substance.3, the sewage-farm necessary very living plant of unboiled water of only purifying waste water, view is unsatisfactory.
None organically organically is bonded together artificial swamp technology, technology of biological membrane and man-made tourist site in the prior art.With a system high efficiency, stably purify different types of sewage, build suitable view simultaneously in the sewage purification field to beautify the environment.
Patent CN 1475448A (Hu Hongying, Liu Chaoxiang etc.) has announced " a kind of strengthened artificial wet land sewage water treatment method and system ".Be intended to improve the purification efficiency of nitrogen in the sewage, phosphorus and the flow of sewage disposal.The Sewage treatment systems of this invention is provided with a rectangle pond body; Its first three/one section kind reed, 2/3rds sections kind wild rice stems in back.The compounded mix that filling is made up of slag, red soil and soil ulmin in the pond.When effluent stream was crossed this pond, its pollutent was cleaned under filler and the action of microorganisms attached to filling surface plant.This patent does not have to engage with controlled technology of biological membrane and man-made tourist site.
Patent CN1390787A (Chen Zhanghe) has announced one " artificial wet field facilities for treating sewage ".The activity space that its objective is the growing space that will increase root system of plant and microorganism is to improve the decontamination effect improving of sewage.This device constitutes by multistage stair-stepping Ziren worker is wetland bed, and each level has one or more water outlets, and the monolithic devices shape is tapered.Processed sewage flows at the highest level wetland bed and flow to next stage through its water outlet earlier; Last wetland bed outflow by minimum one-level.This a little wetland bed shape can be garden annular, ellipse garden annular, rectangular annular or square annular or the like.The plant of artificial swamp can be according to the character seed selection of sewage.The matrix that is used for plant-growth in the wetland is grouan, cinder or other matrix.The core of this patent provides a kind of novel artificial wet field facilities for treating sewage.Do not relate to controlled technology of biological membrane and man-made tourist site.
Patent CN1482079A (Wu Xiangde, Duan Zhiyong) has announced one " artificial marsh sewage treating method and device thereof ".The purpose of this invention is to solve the problem that pollution treatment efficient is low, floor space is bigger in the existing similar technology.This artificial swamp is connected in series by three turn one's coat pond and two filtering basin.Turning one's coat does not have filler in the pond, and filler, plant and water distributor are arranged in the filtering basin.Sewage flows into first pond of turning one's coat earlier, and the water distributor through connecting filtering basin enters filtering basin then.Water (flow) direction in the water distributor is a upflowing.Sewage after being cleaned flows into turn one's coat pond and filtering basin of next stage and further purifies; Flow out artificial swamp by the final stage pond of turning one's coat at last.This patent does not also relate to controlled technology of biological membrane and man-made tourist site.
Summary of the invention the object of the invention is to overcome the prior art deficiency, invent a kind of controllable biological membrane technique, artificial swamp technology, and man-made tourist site organically combine, with a system high efficiency, stably purify different types of sewage, build suitable view (as greenery patches, waterside pavilion or park etc.) simultaneously in the sewage purification field to beautify people's live and work environment.
The controlled biomembrane landscape wetland sewage purification system that the present invention announces comprises a pre-treatment facility, a detention tank, a mud digester, a multi-functional controlled baterial cultivation pool, and multistage wetland treating pond (see figure 1).The technical scheme that is adopted is as follows:
1. establish one " pretreatment system " in the ingress of native system to remove foreign material and the suspended substance in the sewage;
2. the sewage of intending purifying is introduced its mud of precipitation in " silt deposit pond ";
3. the mud in the settling tank is pumped in the mud digester and handle;
4. in multi-functional controlled baterial cultivation pool, turn out microorganism species efficiently according to the composition of pollutent with biotechnology; Constantly replenish and add in the microbial film, make microbial film remain efficient, stable working order.
5. the good porous mass transfer carrier of filling air-and water-permeable performance in " elementary artificial swamp treating pond " to " final stage artificial swamp treating pond " is laid piping manifold up and down, and the suitable aquatic very living plant of top layer seed selection;
6. the flora that cultivation is come out is rendered to and is made it to form the biofilm system that can decompose, transform and degrade sewage in the multistage wetland treating pond;
7. the upper strata sewage of post precipitation being introduced multistage artificial swamp treating pond carries out discharging this system after sewage purification is handled.
The technical scheme of controlled biomembrane landscape wetland sewage purification technology of the present invention and system is: by the source of sewage of intending handling (11), recycle pond (10) or in advance counterweight sewage carry out the pretreatment system that the first step is handled, it is characterized in that the entire sewage purification system is by silt deposit pond (1), mud digester (2), hydrolysis acidification pool (3), pleuston oxidation pond (4), physico-chemical process treating pond (5), multi-functional controlled baterial cultivation pool (6), elementary artificial swamp treating pond (7), final stage artificial swamp treating pond (8) and lake, natural water body man-made tourist site ground, river (9) constitutes, last, do not need lift pump between subordinate's treating pond, sewage is communicated by pipeline under the effect of gravity and flows to the next stage treating pond, sludge pump is equipped with in bottom, silt deposit pond (1), the purification of its sewage is to finish by the collaborative mutually of controlled microbial film and artificial wet land system, forms by controlled technology of biological membrane, artificial swamp technology and man-made tourist site organically combine sewage purification system mutually.
Upper strata sewage in the silt deposit pond (1) is preceding at inflow elementary artificial swamp treating pond (7), final stage artificial swamp treating pond (8), need through the aerating apparatus oxygenation, make aerobic bacteria layer energy normal growth, breeding in the controlled biomembrane artificial swamp treating pond (7,8), silt deposit pond (1) bottom is impervious barrier (21).
The aerating apparatus of a cover adjustable speed is equipped with in multi-functional controlled baterial cultivation pool (6) inside, can cultivate the flora of aerobic bacteria, facultative aerobe and facultative anaerobe and the different mushrooms of cultivation anerobe in the multi-functional baterial cultivation pool (6), allow microbial film keep the working order of efficient, a stable treated sewage in the microbial film to add to, to decomposition, conversion and the degraded that sewage continues, multi-functional controlled baterial cultivation pool (6) bottom is impervious barrier (21).
In mud digester (2) bottom is impervious barrier (21), heap on impervious barrier (21) top mud oar (22), plant in the silt slurry and be implanted with aquatic very living plant (24) or hydrophile shrub and arbor, aquatic very living plant (24) is upwards growth constantly, its flourishing root system has the function of curing and digested sludge, and the objectionable impurities in the silt slurry also can be purified by aquatic very living plant and microbiological degradation.
Elementary artificial swamp treating pond (7), be equipped with in the final stage artificial swamp treating pond (8) by two layers of undercurrent type treatment system that pipe network system constitutes up and down, lower floor's network of drains (53) is contained in the middle of the porous mass transfer carrier layer (41), upper strata water distribution pipe network (45) is contained in the middle of the fine sand layer (43), elementary artificial swamp treating pond (7), final stage artificial swamp treating pond (8) bottom all is an impervious barrier (21), be porous mass transfer carrier layer (41) above in regular turn, centimetre stone layer (42), fine sand layer (43) and pedosphere (47), elementary artificial swamp treating pond (7), the living plant of unboiled water (24) is endured in plantation in the final stage artificial swamp treating pond (8).
Porous mass transfer carrier layer (41) is carried mutually by several piece porous mass transfer carrier and is formed, adhere to multiple microorganism species in every block of porous mass transfer carrier, form the biofilm system that one deck can efficiently decompose, transform and degrade sewage, the flourishing root system of the aquatic very living plant in the controlled biomembrane wetland treating pond stretches in the entire treatment pond sewage is purified.Every layer of pipe network system all constitutes by being responsible for arm, and predominant tube diameter is greater than the arm diameter.
One or more form controlled biomembrane by aerobic bacteria (71), facultative aerobe (72), facultative anaerobe (73) and anerobe (74) in every block of porous mass transfer carrier, anerobe (74) is attached on the porous mass transfer solid support material by the microbial film internal layer, at biomembranous upper layer is aerobic bacteria (71), and biomembranous middle layer is facultative aerobe (72) or facultative anaerobe (73).
Required flora can comprise following several big class when constituting controlled biomembrane: A, phosphate-solubilizing bacteria, B, sulfuration bacterium, reversal of cure bacterium, C, silicate bacteria, D, denitrifying bacterium, E, Nitrate bacteria, F, Nitrite bacteria, G, anaerobism cellulose-decomposing bacterium, H, aerobic cellulose-decomposing bacterium.
It can build up greenery patches, water scenery, artificial hillock, pavilion, waterside pavilion, park, pasture according to different purposes, characteristics and requirement lake, natural water body man-made tourist site ground, river (9), make it and environment on every side and demand formation one beautiful harmonious integral body, land resources is effectively utilized.
Controlled biomembrane landscape wetland sewage purification system of the present invention has following feature:
1. sewage purification system of the present invention integrates controllable biological membrane technique, artificial swamp technology, reaches the comprehensive system of man-made tourist site.It not only can efficiently, stably purify different types of sewage but also can build the live and work environment that suitable view (as greenery patches, waterside pavilion, park or pasture etc.) beautifies people harmoniously in the sewage purification field.
2. the multistage artificial swamp treating pond in the native system contains biofilm system and the natural aquatic plant of being made up of multiple microorganism species that comes out boldly.They all are that objectionable impurities composition at sewage specially makes up and cultivates, can be efficiently, purify waste water synergistically.In addition, these microorganism species all can be cultivated or regulate according to the purification needs of different sewage.This all significantly strengthens the sewage purification scope of native system and ability.
3. the sewage purification process of each grade artificial swamp treating pond is all finished under the face of land, can't see sewage on the ground.This has reduced the pollution of sewage to air widely.
4. in the ground mud layer in the sludge treatment pond of native system, cattail, reed, Canna generalis Bailey, Scirpus tabernaemontani, rhizoma alismatis, Arundo donax, aquatic plants that come out boldly such as power flower, water rib water shield again kind are arranged, and they can constantly upwards be grown and its flourishing root system can solidify and purify mud with the increase of silt depth.But the moisture spontaneous evaporation in the pond in the mud oar, the mud oar is Gu Ji under the effect of root system of plant.Mud does not need to clear up at any time but waits to accumulate the just unified cleaning of certain thickness.
Controlled biomembrane landscape wetland sewage purification system of the present invention has the following advantages and beneficial effect:
1. integrate the sewage purification function of artificial swamp and the landscaping function of man-made tourist site, not only purified sewage but also beautified environment; And the manmade landscape, artificial landscape can hommization, forms harmonious unification with the surrounding environment in city, industrial enterprise and rural area.
2. use controllable biological membrane technique and artificial swamp technology synergy evolution sewage, the wastewater purification efficiency height.
3. can select to cultivate suitable microorganism species and make up corresponding biofilm system according to character, concentration, the composition of pollutent, can purify polytype sewage effectively.
4. can build this system according to landform, landforms and area, the utilization ratio height in soil with suiting measures to local conditions.
5. the cost of sewage purification part is low, maintenance technology is understandable, working cost is low.
This invention can be used for developing and a kind ofly can purify the Sewage treatment systems that polytype sewage has manmade landscape, artificial landscape's function again effectively.Sewage after the processing can reach the water quality emission standard of national regulation; Its manmade landscape, artificial landscape can be environment greenery patches, water scenery, old field or park etc.
The invention will be further described with reference to the accompanying drawings for description of drawings.
Fig. 1 is controlled biomembrane landscape wetland sewage purification system of the present invention and schematic flow sheet.
Fig. 2 is a YEB-sewage purification system design diagram.
Fig. 3 is a silt deposit pond synoptic diagram.
Fig. 4 is a mud digester synoptic diagram.
Fig. 5 is the hydrolysis acidification pool synoptic diagram.
Fig. 6 is a pleuston oxidation pond synoptic diagram.
Fig. 7 is a physico-chemical process treating pond synoptic diagram.
Fig. 8 is the horizontal section synoptic diagram of multi-functional controlled baterial cultivation pool.
Fig. 9 is the schematic top plan view of multi-functional controlled baterial cultivation pool shown in Figure 8.
Figure 10 is a current wetland treating pond diagrammatic cross-section under the controlled biomembrane.
Figure 11 is a current wetland treating pond diagrammatic cross-section on the controlled biomembrane.
Figure 12 is the grid diagrammatic cross-section.
Figure 13 grid schematic top plan view.
Figure 14 is a microbial film diagrammatic cross-section of the present invention.
Figure 15 handles the process flow sheet of dephenolize, cyanogen for the present invention.
Figure 16 is digestion filtration treatment process flow sheet.
Wherein: in Fig. 1,1-silt deposit pond, 2-mud digester, 3-hydrolysis acidification pool, 4-pleuston oxidation pond, 5-physico-chemical process treating pond, 6-multi-functional controlled baterial cultivation pool, 7-elementary artificial swamp treating pond, 8-final stage artificial swamp treating pond, 9-lake, natural water body man-made tourist site ground, river, 10-recycle the pond.
In Fig. 2, the source of sewage that 11-plan is handled, 12-section dirty ditch, 1-silt deposit pond, 2-mud digester, 3-hydrolysis acidification pool, 4-pleuston oxidation pond, 5-physico-chemical process treating pond, 6-multi-functional controlled baterial cultivation pool, 7-elementary artificial swamp treating pond, 8-final stage artificial swamp treating pond, 10-recycle the pond.
In Fig. 3,21-impervious barrier, 22-mud oar, 23-sewage.In Fig. 4,22-mud, 24-are endured the water waterplant, the 21-impervious barrier.In Fig. 5,25-opening barricade, 23-sewage.In Fig. 6,26-pleuston, 23-sewage.In Fig. 7,27-throw out, 23-sewage, 28-chemical substance.In Fig. 8,30-agitator, 29-nutrient solution, 21-impervious barrier.In Fig. 9,21-impervious barrier, 29-nutrient solution, 30-agitator.
In Figure 10,41-porous mass transfer carrier layer, 42-centimetre stone layer, 43-fine sand layer, 24-are endured the water waterplant, 45-grid, 21-impervious barrier, 47-pedosphere.In Figure 11,41-porous mass transfer carrier layer, 42-centimetre stone layer, 43-fine sand layer, 24-are endured the water waterplant, 45-grid, 21-impervious barrier, 47-pedosphere.In Figure 12, current pipe network under the 44-, 48-water (flow) direction, the last current pipe network of 46-, 48-water (flow) direction.In Figure 13, current pipe network under the 44-, 40-barricade, the last current pipe network of 46-, 48-water (flow) direction, 49-water outlet.In Figure 14,71-aerobic bacteria, 72-facultative aerobe, 73-facultative anaerobe, 74-anerobe, 75-porous mass transfer carrier.
In Figure 15,81-high density phenol-containing wastewater, 82-ammoniacal liquor pond, 83-coke filter, 84-cooling tower, the 85-extraction tower, 86-soda-wash tower, 87-turning oil, 88-phenates jar, the smart phenol of 89-workshop section, the 850-ammonia still, 851-water-and-oil separator, 852-enter the YEB sewage purification processing system.
In Figure 16,51-refuse tip sewage collecting pool, 52-digests filtration processing tank, 53-second stage YEB purification system.
Embodiment sewage carried out pre-treatment by pre-treatment facility system (13) earlier before entering purification system of the present invention, detect character, concentration and the composition of its pollutent simultaneously and cultivate the microbiological deterioration flora that needs.Then sewage is introduced silt deposit pond (1) precipitation mud wherein; Put into artificial swamp treating pond (7,8) to make up the biofilm system that needs cultivating the microorganism species that comes out.The mud that is precipitated out pumps in the mud digester (2) and makes digestion process, and sewage is sent into multistage wetland treating pond and purified and discharge this system.
The function of mud digester (2) is to solidify and the digested sludge oar.The mud oar that enters digester generally can be spread out equably.Plantation the livings plant of unboiled water very in bottom mud, it can constantly upwards be grown and its flourishing root system can stretch into the entire treatment pond with the increase of silt seam.This root system has the function of curing and digested sludge oar.On the other hand, the mud oar can make the volume of mud reduce more than 90% in the constantly evaporation of interior moisture content on the digestion pool.Therefore, the mud in the digester need not to remove at any time but just unifies to remove after waiting to amass certain thickness water.Be that objectionable impurities in the mud also can be by very living plant of unboiled water and microbially decontaminate again.This is that native system is disposed of sewage mud than unique facility.
Multi-functional controlled baterial cultivation pool (6) is the critical facility of this purification system.Its function is to cultivate different floras such as aerobic bacteria, facultative aerobe, facultative anaerobe, anerobe, comprise can decompose special harmful chemical, the flora of conversion, Degradation.Because the diversity of microbial population pathways metabolism, they have the effect of different decomposition, conversion and degraded to different sewage compositions.After adding these floras in the multistage artificial swamp on demand, we can utilize biotechnology to construct the microbial film of handling daily life sewage and industrial sewage, and the sewage that difference is polluted character purifies.In addition, they also can be used for adding or additional existing biofilms in flora, make them be in efficient, stable purification working order all the time.
Multistage wetland treating pond (7,8) is the core of this purification system.The upper strata plantation of pond body is the living plant of unboiled water very; Lower floor's filling has the porous mass transfer carrier of multiple microorganism species.These are endured the living plant of unboiled water and have flourishing root system and can stretch into the entire treatment pond and a large amount of oxygen is brought in the pond, can purify sewage by these root systems of plant; These porous mass transfer carriers that have multiple microorganism species have formed the biofilm system that one deck can decompose efficiently, transform and degrade sewage.This purification system endures the root system of the living plant of unboiled water by these and the synergy of controlled biomembrane system is purified waste water, and the more existing technology of its detergent power significantly increases.Simultaneously it combines with the manmade landscape, artificial landscape again, makes the organically integrator that beautifies of the purification of sewage and environment.
The sewage that purifies by this purification system not only can reach emission standard, and helps the reparation of lake, river species diversity after flowing into the river, lake, thereby makes lake, river eliminate the black turbid state of foul sewage, reverts to limpid, clean water body.
Embodiment 1: purify town domestic sewage, day output is 100 tons.
One, YEB-sewage purification process flow process
YEB-sewage purification process flow process as shown in Figure 1.
Two, YEB-sewage purification system design
YEB-sewage purification system design diagram is seen Fig. 2.In Fig. 2, source of sewage (11) and section dirty ditch (12) that pretreatment system for sewage is handled by plan constitute, and are used for removing the solid sundries of sanitary sewage or weigh sewage carrying out the first step processing.This system mainly is made up of thick, the thin barrier of a cover.
Its synoptic diagram of silt deposit pond (1) sees that Fig. 3 is used for precipitating the mud of sewage.Sewage enters silt deposit pond post precipitation, and the sewage on top enters elementary wetland treating pond and purifies, and the silt slurry of bottom is squeezed into the mud digester aperiodically with pump and handled.
Its synoptic diagram of mud digester (2) sees that Fig. 4 is used to handle the mud that is pumped into by the silt deposit pond.Living plant of unboiled water and hydrophile arbor are endured in plantation in the mud digester.The silt slurry that generally enters sludge digestion tank will be evenly distributed in the pond.The very living plant of planting in the mud bottom is upwards growth constantly, and its flourishing root system has the function of curing and digested sludge.Silt slurry moisture content in digester constantly evaporates, and its volume can reduce 95% ~ 99%.It does not need to remove at any time, but waits to amass just unified removing the when arriving certain thickness.Objectionable impurities in the mud digester can be by very living plant of unboiled water and microbiological degradation purify.
Its synoptic diagram of multi-functional controlled baterial cultivation pool (6) sees that Fig. 8 and Fig. 9 are used to cultivate, the flora of interpolation and supplementary copy system needs.Multi-functional baterial cultivation pool be native system important composition partly and details are as follows:
A) this baterial cultivation pool can satisfy the cultivation to different floras such as aerobic bacteria, facultative aerobe, facultative anaerobe and anerobes.Cultivate in multi-functional baterial cultivation pool according to the required flora of intending making up of microbial film.These floras inject multistage wetland treating pond with sewage, play interpolation, replenish and regulate the effect of the flora in the microbial film, make microbial film be in efficient, stable purification working order all the time.The flora of purifying waste water can be divided into following several big class according to the effect to sewage: A, phosphate-solubilizing bacteria are (as the phosphorus decomposing bacillus megaterium, pseudomonas etc.) floras such as B, sulfuration bacterium (as thiobacillus thiooxidans, grate sulfur thiobacillus etc.), reversal of cure bacterium C, silicate bacteria D, denitrifying bacterium E, Nitrate bacteria F, Nitrite bacteria G, anaerobism cellulose-decomposing bacterium H, aerobic cellulose-decomposing bacterium.
B) some are contained the sewage of special harmful chemical, but using microbe engineering, in multi-functional baterial cultivation pool, cultivate have can decompose special harmful chemical, the flora of conversion and Degradation, the biology that has special sewage treatment capacity with structure
C) film system (referring to Fig. 8,9).
Its synoptic diagram of multistage wetland treating pond (7,8) sees that Fig. 6 is used to purify waste water.Its structure and principle are:
A) in each pond, lay upper and lower two-layer pipe network.Sewage enters the upper strata piping manifold and is evenly distributed in the wetland layer by ducted hole.Sewage after treatment enters the secondary treatment pond after collecting lower floor's pipeline network system.Like this, can reach emission standard through the sewage after the processing of two-stage (or multistage) treating pond.
B) top layer of wetland treating pond, plantation is the living plant of unboiled water very.Very the root system of the living plant prosperity of unboiled water stretches into whole wetland treating pond, and sewage is carried out purifying treatment; In the bottom of wetland treating pond, attached on the porous mass transfer carrier, form the biofilm system that one deck can efficiently decompose, transform and degrade sewage by multiple microorganism species.Therefore, the YEB-purification system has the function of enduring living plant of unboiled water and biofilm system double purified sewage, its stable performance, efficient.
Because the diversity of microbial population pathways metabolism, different microorganisms has different decomposition, conversion and Degradation to different sewage compositions.Therefore, pass through microbial engineering, not only can construct the microbial film of handling daily life sewage, the sewage of different source of pollution be carried out purifying treatment (referring to Fig. 7, biofilm structure synoptic diagram) but also can make up corresponding microbial film according to the sewage that contains special harmful chemical that different industrial and mining enterprises discharge.
Embodiment 2: purify the sewage that contains phenol, cyanogen harmful pollutants.
The sewage that discharges in coke, gas production process contains the phenol amount up to 2-12g/L, cyanogen content 20mg/L.Therefore, when handling this type of sewage, need mode through second-stage treatment.The first step adopts chemical method to carry out pre-treatment, and the phenol (2-12g/L) of high density is reduced to 200 ~ 300mg/L, and cyanogen is reduced to below the 10mg/L from 20mg is several, and the concentration of corresponding other pollutent of reduction, just enters second stage biochemical treatment then.
About first step pretreatment system, its dephenolize, cyanogen process flow process are seen Fig. 8.YEB-controlled biomembrane artificial swamp view sewage purification system is adopted in second stage biochemical treatment, and phenol-containing wastewater is made further purifying treatment.
Consider that the sewage day output is 100 ton per days.The process flow sheet of sewage purification is with shown in Figure 1; The same Fig. 2 of the synoptic diagram of sewage purification system.Application YEB-controlled biomembrane artificial swamp view sewage purification system purifies the technical characterstic (also comprising the Technology of Sewage characteristics that contain harmful chemical substance that other industrial and mining enterprises discharge of handling) that contains phenol, cyanogen sewage and is to use microbial engineering and Microbial Breeding skill to screen the flora of objectionable impurities that can decompose, transforms and degrade.To containing the sewage of objectionable impuritiess such as phenol, cyanogen, generally in the pseudomonas group of the Nocardia bacteria group of ray fungi and bacterium class, screen the flora of degraded phenol, cyanogen class material.After screening suitable flora, further carry out the domestication transformation of these floras, make it to become the efficient processing flora that is adapted to the mass-producing purification system by Microbial Breeding technology and microbial engineering.
Embodiment 3: the dirt infiltration sewage of considering to purify the disposal site.Bulky refuse is handled all has a large amount of sewage to ooze out an every day, and these concentration of wastewater height, composition are very complicated, and are very big to the pollution effect of environment.Use the YEB-system of purifying waste water and to purify this class sewage effectively, reach the agricultural water quality standard.
Use YEB-this type of sewage of the system handles of purifying waste water, generally also need pass through second-stage treatment.The first step is the digestion filtration treatment, makes sewage reduce concentration.The second stage is to handle with YEB-sewage purification system.Make the sewage after the processing reach the agricultural water quality standard.
Figure 16 is seen in the technical process of first step digestion filtration treatment.The day amount of disposing of sewage of setting second stage YEB-sewage purification system is 100 tons.The process flow sheet of sewage purification is with shown in Figure 1; The same Fig. 2 of the synoptic diagram of sewage purification system.The technical characterstic of using YEB-this class sewage of sewage purification system processing back is:
1. in controlled baterial cultivation pool, cultivate multiple aerobic bacteria, multiple facultative aerobic and facultative anaerobe and multiple anaerobic bacteria flora in batches.Because different types of flora has different metabolic types, thereby they are brought into play degraded, decomposition and transformation to different pollutents separately and reach purification purpose to sewage.The flora of cultivating in baterial cultivation pool comprises floras such as phosphate-solubilizing bacteria, and the cultivation of these floras mainly is divided into aerobic bacteria culture method, anaerobic bacteria culture method and amphimicrobe culture method; And different floras need be finished with different nutrient solutions.
2. concentration and flow amount and the time on demand according to sewage pumps into the processing of YEB-sewage purification system with cultured various floras.

Claims (9)

1, a kind of controlled biomembrane landscape wetland sewage purification system, by the source of sewage of intending handling (11), recycle pond (10) or in advance counterweight sewage carry out the pretreatment system that the first step is handled, it is characterized in that the entire sewage purification system is by silt deposit pond (1), mud digester (2), hydrolysis acidification pool (3), pleuston oxidation pond (4), physico-chemical process treating pond (5), multi-functional controlled baterial cultivation pool (6), elementary artificial swamp treating pond (7), final stage artificial swamp treating pond (8) and lake, natural water body man-made tourist site ground, river (9) constitutes, last, do not need lift pump between subordinate's treating pond, sewage is through pipeline flow-direction next stage treating pond, sludge pump is equipped with in bottom, silt deposit pond (1), forms by controlled technology of biological membrane, artificial swamp technology and man-made tourist site organically combine sewage purification system mutually.
2, controlled biomembrane landscape wetland sewage purification system according to claim 1, it is characterized in that the upper strata sewage in the silt deposit pond (1) is preceding at inflow elementary artificial swamp treating pond (7), final stage artificial swamp treating pond (8), need through the aerating apparatus oxygenation, make aerobic bacteria layer energy normal growth, breeding in the controlled biomembrane artificial swamp treating pond (7,8), silt deposit pond (1) bottom is impervious barrier (21).
3, controlled biomembrane landscape wetland sewage purification system according to claim 1 and 2, be characterised in that multi-functional controlled baterial cultivation pool (6) inside be equipped with one the cover adjustable speed aerating apparatus, can cultivate the flora of aerobic bacteria, facultative aerobe and facultative anaerobe and the different mushrooms of cultivation anerobe in the multi-functional baterial cultivation pool (6), allow microbial film keep the working order of efficient, a stable treated sewage in the microbial film to add to, to decomposition, conversion and the degraded that sewage continues, multi-functional controlled baterial cultivation pool (6) bottom is impervious barrier (21).
4, controlled biomembrane landscape wetland sewage purification system according to claim 2, be characterised in that in mud digester (2) bottom and be impervious barrier (21), heap on impervious barrier (21) top mud oar (22), plant in the silt slurry and be implanted with aquatic very living plant (24) or hydrophile shrub and arbor, aquatic very living plant (24) is upwards growth constantly, its flourishing root system has the function of curing and digested sludge, and the objectionable impurities in the silt slurry is purified by aquatic very living plant and microbiological degradation.
5, controlled biomembrane landscape wetland sewage purification system according to claim 2, be characterised in that elementary artificial swamp treating pond (7), be equipped with in the final stage artificial swamp treating pond (8) by two layers of undercurrent type treatment system that pipe network system constitutes up and down, lower floor's network of drains (45) is contained in the middle of the porous mass transfer carrier layer (41), upper strata water distribution pipe network (45) is contained in the middle of the fine sand layer (43), elementary artificial swamp treating pond (7), final stage artificial swamp treating pond (8) bottom all is an impervious barrier (21), be porous mass transfer carrier layer (41) above in regular turn, centimetre stone layer (42), fine sand layer (43) and pedosphere (47), elementary artificial swamp treating pond (7), the living plant of unboiled water (24) is endured in plantation in the final stage artificial swamp treating pond (8).
6, controlled biomembrane landscape wetland sewage purification system according to claim 5, it is characterized in that porous mass transfer carrier layer (41) is carried mutually by several piece porous mass transfer carrier forms, adhere to multiple microorganism species in every block of porous mass transfer carrier, form the biofilm system that one deck can efficiently decompose, transform and degrade sewage, the flourishing root system of the aquatic very living plant in the controlled biomembrane wetland treating pond stretches in the entire treatment pond sewage is purified.
7, controlled biomembrane landscape wetland sewage purification system according to claim 5 is characterized in that every layer of pipe network system all constitutes by being responsible for arm, and predominant tube diameter is greater than the arm diameter.
8, controlled biomembrane landscape wetland sewage purification system according to claim 6, be characterised in that in every block of porous mass transfer carrier that one or more form controlled biomembrane by aerobic bacteria (71), facultative aerobe (72), facultative anaerobe (73) and anerobe (74), anerobe (74) is attached on the porous mass transfer solid support material by the microbial film internal layer, at biomembranous upper layer is aerobic bacteria (71), and biomembranous middle layer is facultative aerobe (72) or facultative anaerobe (73).
9, controlled biomembrane landscape wetland sewage purification system according to claim 6, be characterised in that required flora comprises following several big class when constituting controlled biomembrane: A, phosphate-solubilizing bacteria, B, sulfuration bacterium, reversal of cure bacterium, C, silicate bacteria, D, denitrifying bacterium, E, Nitrate bacteria, F, Nitrite bacteria, G, anaerobism cellulose-decomposing bacterium, H, aerobic cellulose-decomposing bacterium.
CNB2006100110350A 2006-07-11 2006-07-11 Controlled biomembrane landscape wetland sewage purification system and technique Expired - Fee Related CN100506707C (en)

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CN101863583A (en) * 2010-04-21 2010-10-20 南昌大学 Technology for treating piggery wastewater by methane tank, biofilm reactor and artificial wetland
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CN105461080A (en) * 2015-11-25 2016-04-06 常州大学 Method for removing ammonia nitrogen and total nitrogen in tail water with bacterial agent strengthened subsurface flow wetland

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US5863433A (en) * 1996-12-02 1999-01-26 Tennessee Valley Authority United States Corp. Reciprocating subsurface-flow constructed wetlands for improving wastewater treatment
US6200469B1 (en) * 1997-06-23 2001-03-13 North American Wetland Engineering System for removing pollutants from water
CN1789179A (en) * 2004-12-14 2006-06-21 四川国策环保实业工程股份有限公司 Highland and severe cold areas sewage treatment method

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US5863433A (en) * 1996-12-02 1999-01-26 Tennessee Valley Authority United States Corp. Reciprocating subsurface-flow constructed wetlands for improving wastewater treatment
US6200469B1 (en) * 1997-06-23 2001-03-13 North American Wetland Engineering System for removing pollutants from water
CN1789179A (en) * 2004-12-14 2006-06-21 四川国策环保实业工程股份有限公司 Highland and severe cold areas sewage treatment method

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