CN105541020A - CDI (Capacitive Deionization) based compound type constructed wetland desalination system - Google Patents
CDI (Capacitive Deionization) based compound type constructed wetland desalination system Download PDFInfo
- Publication number
- CN105541020A CN105541020A CN201511014638.1A CN201511014638A CN105541020A CN 105541020 A CN105541020 A CN 105541020A CN 201511014638 A CN201511014638 A CN 201511014638A CN 105541020 A CN105541020 A CN 105541020A
- Authority
- CN
- China
- Prior art keywords
- water
- cdi
- artificial wetland
- partition wall
- insulating barrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a CDI (Capacitive Deionization) based compound type constructed wetland desalination system. The technical scheme of the invention is that a pretreatment system in the compounded type constructed wetland desalination system is connected with a compound vertical flow constructed wetland system by virtue of a pipeline. The pretreatment system is that: the water inlet and the water outlet of a grille (22) are communicated with the water inlet of a corresponding first pressure pump (23) and the water inlet of a CDI device (3) by virtue of pipelines, andthe water outlet of the CDI device (3) is communicated with the water inlet of a compound vertical flow constructed wetland and the water inlet of a salt drying plate (9) respectively through pipelines.A bottom impervious layer (18) of the compound vertical flow constructed wetland system is sequentially provided with a gravel layer (17), a biological ceramisite layer (13), a zeolite layer (12) and a soil layer (11) upwards, the constructedwetland is uniformly separated into 2n+1 vertical flow treatment tanks (7)along the left and right direction, and the tops and the bottoms of the vertical flow treatment tanksare communicated with one another in a staggered manner. The CDI based compound type constructed wetland desalination system disclosed by the invention is environmentallyfriendly, can effectively solve the problem of clogging and saturation of the soil layer of the wetland, and is good in nitrogen and phosphorus removal effect and desalination effect.
Description
Technical field
The invention belongs to composite type artificial wetland desalination system technical field.Be specifically related to a kind of composite type artificial wetland desalination system based on CDI.
Background technology
Capacitive deionization (CapacitiveDeionization, being called for short CDI) desalting technology is the ion that the electrostatic double layer utilizing sewage and electrode interface to be formed comes in absorption effluent, when carrying out desorption desorb after ionic adsorption reaches capacity under the effect of reversed electric field power, electrode is regenerated.Capacitive deionization method adopts low voltage, and do not use chemical, ion (salt) is not contaminated and recyclable, is the water technology of a kind of pollution-free, low power consuming and high additive value.But capacitive deionization only has higher clearance to salt ion, lower to the clearance of dirty organic pollutants, nitrogen and phosphorus, therefore to the water quality requirement of disposing of sewage, be often restricted.
Artificial swamp utilizes soil, the synergy of microorganism and plant three is disposed of sewage, the dual purpose of purifying waste water with strengthening view can being reached, having simple to operate, the advantage such as safeguard and working cost is low, being subject to the most attention of countries in the world, is a kind of cost-effective ecological reestablishment.In recent years, the application of Artificial Wetland Techniques in sewage disposal is increasingly extensive, has broad application prospects.
Artificial wet land system has significant removal efficiency to BOD, COD, TSS, TP, TN, algae, petroleum-type etc.But also often there are the following problems for the operational process of artificial swamp:
(1) wetland soil layer easily blocks;
(2) limited artificial swamp matrix is easily saturated to the adsorption of pollutent, and not easily desorb;
(3) only to nitrogen phosphorus and organic pollutant treatment effect better, desalting effect is poor, easily causes wetland salinization, affects the normal operation of artificial wet land treating system.
Summary of the invention
The present invention is intended to overcome prior art defect, and object is to provide a kind of environmental friendliness, effectively can solve the blocking of wetland soil layer and saturated, good denitrogenation and dephosphorization effect and the good composite type artificial wetland desalination system based on CDI of desalting effect.
For achieving the above object, the technical solution used in the present invention is: described composite type artificial wetland desalination system is made up of pretreatment system and composite vertical current artificial wetland system.Pretreatment system comprises the first force (forcing) pump, under meter, grid, CDI device, conductivitimeter, water tank, the second force (forcing) pump and plate of evaporating brine.The water-in of the first force (forcing) pump is communicated with treatment sewage by pipeline, the water outlet of the first force (forcing) pump is communicated with the water-in of grid by pipeline, the water inlet of grid is provided with under meter, the water outlet of grid is communicated by the water-in of pipeline with the first stopping valve, the water outlet of the first stopping valve communicates with the water-in of CDI device, and the water outlet of CDI device is communicated with the water-in of the second stopping valve and the water-in of the 3rd stopping valve by pipeline.The water outlet of the 3rd stopping valve communicates with the water-in of composite vertical current artificial wetland, and water-in is positioned at the top of composite vertical current artificial wetland.The water outlet of the second stopping valve communicates with the water-in of water tank, and the water outlet of water tank is communicated by the water-in of pipeline with the second force (forcing) pump, and the water outlet of the second force (forcing) pump communicates with the water-in of plate of evaporating brine.
Described composite vertical current artificial wetland system is: be provided with impervious barrier in the bottom of artificial swamp and four sides, upwards be provided with metalling, biological ceramic particle layer, zeolite layer and pedosphere successively from the base impervious layer of artificial swamp, metalling, biological ceramic particle layer, zeolite layer and edaphic height are followed successively by 15 ~ 20cm, 30 ~ 40cm, 30 ~ 40cm and 15 ~ 20cm.Edaphic top is fixed with plate of evaporating brine, and pedosphere kind is implanted with waterplant.
2 are provided with equably in left-right direction at artificial swamp
nroad partition wall, 2
nartificial swamp is divided into 2 by road partition wall
n+ 1 vertical current treating pond, (
nbe the natural number of 1 ~ 3), the distance between per pass partition wall is 3 ~ 8m.Wherein: sequence number (SN) is the partition wall of odd numbered trace is high-water partition wall, and high-water partition wall is positioned at pedosphere, zeolite layer and biological ceramic particle interlayer, and the bottom of the vertical current treating pond of high-water partition wall both sides is connected; Sequence number (SN) is the partition wall in even number road is low-water level partition wall, and low-water level partition wall is positioned at zeolite layer, between biological ceramic particle layer and metalling, the top of the vertical current treating pond of low-water level partition wall both sides is connected.
The pedosphere of first vertical current treating pond is provided with water distributor, and water distributor communicates with the water-in of composite vertical current artificial wetland; The bottom of the metalling of last vertical current treating pond is provided with header, and header is communicated with the water-in of the 4th stopping valve by the water outlet of composite vertical current artificial wetland.
The structure of described CDI device is: have 2 ~ 8 mounting grooves, 2 ~ 8 mounting grooves are evenly arranged, and each mounting groove is equipped with insulating barrier the base plate of housing and roof symmetric, and first and last insulating barrier are near on the left of housing and the inwall of right side correspondence.The right flank of each insulating barrier except last insulating barrier is glued with electrode anode, is provided with cationic exchange membrane near the another side of electrode anode; The left surface of each insulating barrier except first insulating barrier is glued with electrode cathode, is provided with anion-exchange membrane near the another side of electrode cathode.Each electrode anode is connected with the positive pole of power supply, and each electrode cathode is connected with the negative pole of power supply; The volts DS of power supply is 1.5 ~ 1.9V.The water-in of housing and water outlet communicate with the mouth of a river of crossing of corresponding first insulating barrier and last insulating barrier, sequence number (SN) is that the close upper end of the insulating barrier of odd number was provided with the mouth of a river, and sequence number (SN) is that the close lower end of the insulating barrier of even number was provided with the mouth of a river.The sample connection of conductivitimeter is fixed on crossing in aquaporin of CDI device inside through housing bottom.
Described electrode anode and electrode cathode are nanometer zirconium carburizing electrode, nanometer zirconium carburizing electrode be by thickness be the zirconium plate of 0.2 ~ 1mm through sand papering, polishing, electrochemical anodic oxidation, carbon bag, magnetron sputtering carbon nanotube, obtains nanometer zirconium carburizing electrode; Described carbon nanotube diameter is 2 ~ 60nm.
Described cationic exchange membrane and anion-exchange membrane are homogeneous ion-exchange membrane.
The thickness of described insulating barrier is 4 ~ 10mm; The material of described insulating barrier and housing is the one in PVC plastic flitch, ABS plastic plate and poly (methyl methacrylate) plate.
The thickness of described plate of evaporating brine is 6.0 ~ 20mm, and mounted angle is 5 ~ 15 °; The material of described plate of evaporating brine is the one in PVC, HIPS, PC plastic plate.
Described waterplant is more than one in cattail, Canna generalis Bailey, Rush or reed.
The material of described impervious barrier is the one in chemical-treated soil, geomembrane or pitch; Partition wall is identical with the material of impervious barrier.
Described edaphic soil is the mixture of garden waste composting production and soil; Wherein, the volume ratio of garden waste composting production and soil is (10 ~ 20): 1.
Working process of the present invention is: connect direct supply, enter in CDI device, conductivitimeter on-line monitoring specific conductivity through the pretreated sewage of grid.When conductivitimeter numerical value gos up, illustrate that electrode adsorption ion is own through saturated, now CDI device enters desorption stage, and the first force (forcing) pump quits work, and close the first stopping valve and the 3rd stopping valve, power outage, positive and negative electrode short circuit 5min carries out desorb process.
Specific conductivity starts after arriving maximum value to decline, and when dropping to identical with specific conductivity of intaking, desorb completes.Second stopping valve is opened, and the sewage of the high density of generation enters water tank, delivers to plate of evaporating brine, tan by the sun process through the sun by the second force (forcing) pump, and desorb water is evaporated, and salinity reclaims, electrode regeneration in this process.Then power-on, opens the 3rd stopping valve, carries out next circular treatment.Entered the sewage of artificial swamp by the 3rd stopping valve, discharged through the 4th stopping valve by the water outlet of artificial swamp via after the pedosphere of 3 vertical current treating ponds, zeolite layer, biological ceramic particle layer and metalling treatment and purification.
Owing to adopting technique scheme, the present invention compared with prior art tool has the following advantages:
Pretreatment system of the present invention adopts grid and CDI device to dispose of sewage, and can remove larger floating matter in sewage and carry out desalination deionization purifying treatment, and de-that salinity reclaims to CDI device, avoids secondary pollution.Reuse because the electrode anode in the present invention and electrode cathode can regenerate, reduce manufacturing cost, and electrode anode and electrode cathode regenerative process are without the need to soda acid, decrease secondary pollution; Present invention adds cationic exchange membrane and anion-exchange membrane, substantially increase the absorption property of electrode.
The pedosphere of composite vertical current artificial wetland system of the present invention is garden waste composting production and local soil is (10 ~ 20) according to volume ratio: 1 mixes, have compared with general soil that proportion is little, organic content is high, the feature of air permeability and good water-retaining property, effectively can solve the blockage problem of wetland soil layer.Zeolite layer has extremely strong Selective adsorption to ammonia nitrogen, can retain the ammonia nitrogen in sewage fast.Because zeolite has huge specific surface area, it is a kind of desirable microbe carrier, and edaphic existence of the present invention can provide a large amount of dissolved oxygens for zeolite layer, therefore in zeolite layer, there is a large amount of nitrobacterias and Ammonifying bacteria can promote the nitrated of ammonia nitrogen.Secondly, when the organic pollutant without pedosphere interception enters zeolite layer again, through the biochemical reaction of Ammonifying bacteria and nitrobacteria, the nitrification of ammonia nitrogen can be promoted further.On the other hand, sewage through zeolite layer process contains a large amount of nitric nitrogens and phosphorus, in the reduction gradually due to dissolved oxygen concentration of biological ceramic particle layer of the present invention and metalling, there is a large amount of denitrifying bacteriums, facilitate the removal of nitrogen in sewage, it is large that next biological ceramic particle due to biological ceramic particle layer has intensity, porosity is large, specific surface area is large, chemical stability is good, the material of appropriate density and feature saves the greatly biological ceramic particle layer such as biological adhesiveness is strong, and a large amount of microorganism of energy apposition growth, strong to the adsorption of phosphorus, vital role is created to the removal of phosphor in sewage.
Composite vertical current artificial wetland system can be detained and the particulate state organic pollutant decomposed in sewage, the quantity of Ammonifying bacteria in remarkable increase composite vertical current artificial wetland system, nitrobacteria, denitrifying bacterium and urase, and organism, nitrogen, phosphorus, suspended substance, trace element and the pathogenic agent etc. in active high-effect removal sewage.
Therefore, the present invention has environmental friendliness, effectively can solve the blocking of wetland soil layer and saturated, good denitrogenation and dephosphorization effect and the good feature of desalting effect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the amplification view of the CDI device 3 in Fig. 1.
Embodiment
Below by the drawings and specific embodiments, technical scheme of the present invention is described in further detail; Do not form inappropriate limitation of the present invention.
embodiment 1
A kind of composite type artificial wetland desalination system based on CDI.Described composite type artificial wetland desalination system is made up of pretreatment system and composite vertical current artificial wetland system.As shown in Figure 1: pretreatment system comprises the first force (forcing) pump 23, under meter 1, grid 22, CDI device 3, conductivitimeter 21, water tank 20, second force (forcing) pump 19 and plate 9 of evaporating brine.The water-in of the first force (forcing) pump 23 is communicated with treatment sewage by pipeline, the water outlet of the first force (forcing) pump 23 is communicated by the water-in of pipeline with grid 22, the water inlet of grid 22 is provided with under meter 1, the water outlet of grid 22 is communicated by the water-in of pipeline with the first stopping valve 2, the water outlet of the first stopping valve 2 communicates with the water-in of CDI device 3, and the water outlet of CDI device 3 is communicated with the water-in of the second stopping valve 5 and the water-in of the 3rd stopping valve 4 by pipeline.The water outlet of the 3rd stopping valve 4 communicates with the water-in of composite vertical current artificial wetland, and water-in is positioned at the top of composite vertical current artificial wetland.The water outlet of the second stopping valve 5 communicates with the water-in of water tank 20, and the water outlet of water tank 20 is communicated by the water-in of pipeline with the second force (forcing) pump 19, and the water outlet of the second force (forcing) pump 19 communicates with the water-in of plate 9 of evaporating brine.
As shown in Figure 1: described composite vertical current artificial wetland system is: be provided with impervious barrier 18 in the bottom of artificial swamp and four sides, upwards be provided with metalling 17, biological ceramic particle layer 13, zeolite layer 12 and pedosphere 11 successively from the base impervious layer 18 of artificial swamp, the height of metalling 17, biological ceramic particle layer 13, zeolite layer 12 and pedosphere 11 is followed successively by 18 ~ 20cm, 30 ~ 32cm, 30 ~ 32cm and 18 ~ 20cm.The top of pedosphere 11 is fixed with plate 9 of evaporating brine, and pedosphere 11 kinds is implanted with waterplant 10.
As shown in Figure 1: be provided with 2 road partition walls in left-right direction equably at artificial swamp, artificial swamp is divided into 3 vertical current treating ponds 7 by 2 road partition walls, and the distance between per pass partition wall is 5m.Wherein: sequence number (SN) is the partition wall of odd numbered trace is high-water partition wall 8, high-water partition wall 8 is positioned at pedosphere 11, between zeolite layer 12 and biological ceramic particle layer 13, the bottom of the vertical current treating pond 7 of high-water partition wall 8 both sides is connected; Sequence number (SN) is the partition wall in even number road is low-water level partition wall 16, and low-water level partition wall 16 is positioned at zeolite layer 12, between biological ceramic particle layer 13 and metalling 17, the top of the vertical current treating pond 7 of low-water level partition wall 16 both sides is connected.
As shown in Figure 1: the pedosphere 11 of first vertical current treating pond is provided with water distributor 6, and water distributor 6 communicates with the water-in of composite vertical current artificial wetland; The bottom of the metalling 17 of last vertical current treating pond is provided with header 15, and header 15 is communicated with the water-in of the 4th stopping valve 14 by the water outlet of composite vertical current artificial wetland.
As shown in Figure 2: the structure of described CDI device 3 is: have 4 mounting grooves the base plate of housing 28 and roof symmetric, 4 mounting grooves are evenly arranged, each mounting groove is equipped with insulating barrier 26, and first and last insulating barrier 26 are near on the left of housing 28 and the inwall of right side correspondence.The right flank of each insulating barrier 26 except last insulating barrier 26 is glued with electrode anode 25, is provided with cationic exchange membrane 24 near the another side of electrode anode 25; The left surface of each insulating barrier 26 except first insulating barrier 26 is glued with electrode cathode 29, is provided with anion-exchange membrane 31 near the another side of electrode cathode 29.Each electrode anode 25 is connected with the positive pole of power supply 30, and each electrode cathode 29 is connected with the negative pole of power supply 30; The volts DS of power supply 30 is 1.5V.The water-in 27 of housing 28 and water outlet 32 communicate with the mouth of a river of crossing of corresponding first insulating barrier 26 and last insulating barrier 26, sequence number (SN) is that the close upper end of the insulating barrier 26 of odd number was provided with the mouth of a river, and sequence number (SN) is that the close lower end of the insulating barrier 26 of even number was provided with the mouth of a river.The sample connection of conductivitimeter 21 is through being fixed on bottom housing 28 in the aquaporin excessively of CDI device 3 inside.
Described electrode anode 25 and electrode cathode 29 are nanometer zirconium carburizing electrode, nanometer zirconium carburizing electrode be by thickness be the zirconium plate of 0.2 ~ 1mm through sand papering, polishing, electrochemical anodic oxidation, carbon bag, magnetron sputtering carbon nanotube, obtains nanometer zirconium carburizing electrode; Described carbon nanotube diameter is 2 ~ 60nm.
Described cationic exchange membrane 24 and anion-exchange membrane 31 are homogeneous ion-exchange membrane.
The thickness of described insulating barrier 26 is 6mm; The material of described insulating barrier 26 and housing 28 is PVC plastic flitch.
The thickness of described plate 9 of evaporating brine is 6.0 ~ 20mm, and mounted angle is 5 ~ 15 °; The material of described plate 9 of evaporating brine is PVC plastic flitch.
Described waterplant 10 is reed.
The material of described impervious barrier 18 is through chemical-treated soil; Partition wall is identical with the material of impervious barrier 18.
The soil of described pedosphere 11 is the mixture of garden waste composting production and soil; Wherein, the volume ratio of garden waste composting production and soil is 15: 1.
The present embodiment adopts domestic sewage in rural areas to be handling object, and the water quality of described domestic sewage in rural areas is: NH
3-N is 48mg/L; TN is 63mg/L; TP is 3.5mg/L; SS is 230mg/L; COD is 250mg/L; Specific conductivity 1500 μ S/cm.
The working process of the present embodiment is: connect direct supply 30, enter in CDI device 3, conductivitimeter 21 on-line monitoring specific conductivity through the pretreated sewage of grid 22.When conductivitimeter 21 numerical value gos up, illustrate that electrode adsorption ion is own through saturated, now CDI device 3 enters desorption stage, first force (forcing) pump 23 quits work, close the first stopping valve 2 and the 3rd stopping valve 4, power supply 30 is stopped power supply, and positive and negative electrode short circuit 5min carries out desorb process.
Specific conductivity starts after arriving maximum value to decline, and when dropping to identical with specific conductivity of intaking, desorb completes.Second stopping valve 5 is opened, and the sewage of the high density of generation enters water tank 20, delivers to plate 9 of evaporating brine, tan by the sun process through the sun by the second force (forcing) pump 19, and desorb water is evaporated, and salinity reclaims, electrode regeneration in this process.Then power-on 30, opens the 3rd stopping valve 4, carries out next circular treatment.Entered the sewage of artificial swamp by the 3rd stopping valve 4, discharged through the 4th stopping valve 14 by the water outlet of artificial swamp via after the pedosphere 11 of 3 vertical current treating ponds 7, zeolite layer 12, biological ceramic particle layer 13 and metalling 17 treatment and purification.
Purify waste water on inspection after native system process: NH
3-N is 6mg/L; TN is 7mg/L; TP is 0.3mg/L; SS is 5mg/L; COD is 47mg/L; Specific conductivity is 128 μ S/cm.Described purifying waste water meets integrated wastewater discharge standard GB8978-1996.
embodiment 2
A kind of composite type artificial wetland desalination system based on CDI.Except following technical parameter, all the other are with embodiment 1:
The height of metalling 17, biological ceramic particle layer 13, zeolite layer 12 and pedosphere 11 is followed successively by 15 ~ 18cm, 32 ~ 36cm, 32 ~ 36cm and 15 ~ 18cm.
Be provided with 4 road partition walls in left-right direction equably at artificial swamp, artificial swamp is divided into 5 vertical current treating ponds 7 by 4 road partition walls, and the distance between per pass partition wall is 3 ~ 6m.
Have 2 ~ 4 mounting grooves, 2 ~ 4 mounting grooves are evenly arranged, and each mounting groove is equipped with insulating barrier 26 base plate of housing 28 and roof symmetric; The volts DS of power supply 30 is 1.5 ~ 1.6V.
The thickness of described insulating barrier 26 is 4 ~ 6mm; The material of described insulating barrier 26 and housing 28 is ABS plastic plate.
The material of described plate 9 of evaporating brine is HIPS plastic plate.
Described waterplant 10 is cattail.
The material of described impervious barrier 18 is geomembrane; Partition wall is identical with the material of impervious barrier 18.
The soil of described pedosphere 11 is the mixture of garden waste composting production and soil; Wherein, the volume ratio of garden waste composting production and soil is (15 ~ 20): 1.
The present embodiment adopts city domestic sewage to be handling object, and the water quality of described city domestic sewage is: NH
3-N is 45 ~ 50mg/L; TN is 58 ~ 63mg/L; TP is 4 ~ 5mg/L; SS is 220 ~ 240mg/L; COD is 400 ~ 450mg/L; Specific conductivity 1800 ~ 2000 μ S/cm.
Purify waste water on inspection after native system process: NH
3-N is 4 ~ 7mg/L; TN is 6 ~ 8mg/L; TP is 0.4 ~ 0.6mg/L; SS is 4 ~ 8mg/L; COD is 44 ~ 49mg/L; Specific conductivity is 180 ~ 196 μ S/cm.Described purifying waste water meets the one-level A standard of urban wastewater treatment firm pollutant emission standard (GB18918-2002).。
embodiment 3
A kind of composite type artificial wetland desalination system based on CDI.Except following technical parameter, all the other are with embodiment 1:
The height of metalling 17, biological ceramic particle layer 13, zeolite layer 12 and pedosphere 11 is followed successively by 17 ~ 20cm, 35 ~ 40cm, 35 ~ 40cm and 17 ~ 20cm.
Be provided with 6 road partition walls in left-right direction equably at artificial swamp, artificial swamp is divided into 7 vertical current treating ponds 7 by 6 road partition walls, and the distance between per pass partition wall is 5 ~ 8m.
Have 4 ~ 8 mounting grooves, 4 ~ 8 mounting grooves are evenly arranged, and each mounting groove is equipped with insulating barrier 26 base plate of housing 28 and roof symmetric; The volts DS of power supply 30 is 1.6 ~ 1.9V.
The thickness of described insulating barrier 26 is 6 ~ 10mm; The material of described insulating barrier 26 and housing 28 is poly (methyl methacrylate) plate.
The material of described plate 9 of evaporating brine is PC plastic plate.
Described waterplant 10 is more than one in Canna generalis Bailey and Rush.
The material of described impervious barrier 18 is pitch; Partition wall is identical with the material of impervious barrier 18.
The soil of described pedosphere 11 is the mixture of garden waste composting production and soil; Wherein, the volume ratio of garden waste composting production and soil is (10 ~ 15): 1.
The present embodiment adopts high saliferous industrial sewage to be handling object, and the water quality of described industrial sewage is: NH
3-N is 5 ~ 8mg/L; TN is 6 ~ 10mg/L; COD is 100 ~ 120mg/L; Specific conductivity 9000 ~ 10000 μ S/cm.
Purify waste water on inspection after native system process: NH
3-N is 1 ~ 2mg/L; TN is 2 ~ 3mg/L; COD is 12 ~ 15mg/L; Specific conductivity is 223 ~ 246 μ S/cm.Described purifying waste water meets integrated wastewater discharge standard GB8978-1996.
This embodiment compared with prior art tool has the following advantages:
The pretreatment system of this embodiment adopts grid 22 and CDI device 3 to dispose of sewage, and can remove larger floating matter in sewage and carry out desalination deionization purifying treatment, and de-that salinity reclaims to CDI device 3, avoids secondary pollution.Reuse because the electrode anode 25 in this embodiment and electrode cathode 29 can regenerate, reduce manufacturing cost, and electrode anode 25 and electrode cathode 29 regenerative process are without the need to soda acid, decrease secondary pollution; This embodiment adds cationic exchange membrane 24 and anion-exchange membrane 31, substantially increases the absorption property of electrode.
The pedosphere 11 of the composite vertical current artificial wetland system of this embodiment is garden waste composting production and local soil is (10 ~ 20) according to volume ratio: 1 mixes, have compared with general soil that proportion is little, organic content is high, the feature of air permeability and good water-retaining property, effectively can solve the blockage problem of wetland soil layer 11.Zeolite layer 12 pairs of ammonia nitrogens have extremely strong Selective adsorption, can retain the ammonia-state nitrogen in sewage fast.Because zeolite has huge specific surface area, it is a kind of desirable microbe carrier, and the existence of the pedosphere 11 of this embodiment can provide a large amount of dissolved oxygens for zeolite layer 12, therefore in zeolite layer 12, there is a large amount of nitrobacterias and Ammonifying bacteria can promote the nitrated of ammonia nitrogen.Secondly, when the organic pollutant tackled without pedosphere 11 enters zeolite layer 12 again, through the biochemical reaction of Ammonifying bacteria and nitrobacteria, the nitrification of ammonia nitrogen can be promoted further.On the other hand, the sewage processed through zeolite layer 12 contains a large amount of nitric nitrogens and phosphorus, in the reduction gradually due to dissolved oxygen concentration of the biological ceramic particle layer 13 of this embodiment and metalling 17, there is a large amount of denitrifying bacteriums, facilitate the removal of nitrogen in sewage, it is large that next biological ceramic particle due to biological ceramic particle layer 13 has intensity, porosity is large, specific surface area is large, chemical stability is good, the material of appropriate density and feature saves the greatly biological ceramic particle layer 13 such as biological adhesiveness is strong, and a large amount of microorganism of energy apposition growth, strong to the adsorption of phosphorus, vital role is created to the removal of phosphor in sewage.
Composite vertical current artificial wetland system can be detained and the particulate state organic pollutant decomposed in sewage, the quantity of Ammonifying bacteria in remarkable increase composite vertical current artificial wetland system, nitrobacteria, denitrifying bacterium and urase, and organism, nitrogen, phosphorus, suspended substance, trace element and the pathogenic agent etc. in active high-effect removal sewage.
Therefore, this embodiment has environmental friendliness, effectively can solve the blocking of wetland soil layer and saturated, good denitrogenation and dephosphorization effect and the good feature of desalting effect.
Claims (9)
1. based on a composite type artificial wetland desalination system of CDI, it is characterized in that: described composite type artificial wetland desalination system is made up of pretreatment system and composite vertical current artificial wetland system, pretreatment system comprises the first force (forcing) pump (23), under meter (1), grid (22), CDI device (3), conductivitimeter (21), water tank (20), the second force (forcing) pump (19) and plate of evaporating brine (9), the water-in of the first force (forcing) pump (23) is communicated with treatment sewage by pipeline, the water outlet of the first force (forcing) pump (23) is communicated by the water-in of pipeline with grid (22), the water inlet of grid (22) is provided with under meter (1), the water outlet of grid (22) is communicated by the water-in of pipeline with the first stopping valve (2), the water outlet of the first stopping valve (2) communicates with the water-in of CDI device (3), the water outlet of CDI device (3) is communicated with the water-in of the second stopping valve (5) and the water-in of the 3rd stopping valve (4) by pipeline, the water outlet of the 3rd stopping valve (4) communicates with the water-in of composite vertical current artificial wetland, and water-in is positioned at the top of composite vertical current artificial wetland, the water outlet of the second stopping valve (5) communicates with the water-in of water tank (20), the water outlet of water tank (20) is communicated by the water-in of pipeline with the second force (forcing) pump (19), and the water outlet of the second force (forcing) pump (19) communicates with the water-in of plate of evaporating brine (9),
Described composite vertical current artificial wetland system is: be provided with impervious barrier (18) in the bottom of artificial swamp and four sides, upwards be provided with metalling (17), biological ceramic particle layer (13), zeolite layer (12) and pedosphere (11) successively from the base impervious layer (18) of artificial swamp, the height of metalling (17), biological ceramic particle layer (13), zeolite layer (12) and pedosphere (11) is followed successively by 15 ~ 20cm, 30 ~ 40cm, 30 ~ 40cm and 15 ~ 20cm; The top of pedosphere (11) is fixed with plate of evaporating brine (9), and pedosphere (11) is planted and is implanted with waterplant (10);
2 are provided with equably in left-right direction at artificial swamp
nroad partition wall, 2
nartificial swamp is divided into 2 by road partition wall
n+ 1 vertical current treating pond (7), (
nbe the natural number of 1 ~ 3), the distance between per pass partition wall is 3 ~ 8m; Wherein: sequence number (SN) is the partition wall of odd numbered trace is high-water partition wall (8), high-water partition wall (8) is positioned at pedosphere (11), between zeolite layer (12) and biological ceramic particle layer (13), the bottom of the vertical current treating pond (7) of high-water partition wall (8) both sides is connected; Sequence number (SN) is the partition wall in even number road is low-water level partition wall (16), low-water level partition wall (16) is positioned at zeolite layer (12), between biological ceramic particle layer (13) and metalling (17), the top of the vertical current treating pond (7) of low-water level partition wall (16) both sides is connected;
The pedosphere (11) of first vertical current treating pond is provided with water distributor (6), and water distributor (6) communicates with the water-in of composite vertical current artificial wetland; The bottom of the metalling (17) of last vertical current treating pond is provided with header (15), and header (15) is communicated with the water-in of the 4th stopping valve (14) by the water outlet of composite vertical current artificial wetland.
2. the composite type artificial wetland desalination system based on CDI according to claim 1, it is characterized in that the structure of described CDI device (3) is: have 2 ~ 8 mounting grooves the base plate of housing (28) and roof symmetric, 2 ~ 8 mounting grooves are evenly arranged, each mounting groove is equipped with insulating barrier (26), and first and last insulating barrier (26) are near the inwall of housing (28) left side and right side correspondence; The right flank of each insulating barrier (26) except last insulating barrier (26) is glued with electrode anode (25), is provided with cationic exchange membrane (24) near the another side of electrode anode (25); The left surface of each insulating barrier (26) except first insulating barrier (26) is glued with electrode cathode (29), is provided with anion-exchange membrane (31) near the another side of electrode cathode (29); Each electrode anode (25) is connected with the positive pole of power supply (30), and each electrode cathode (29) is connected with the negative pole of power supply (30); The volts DS of power supply (30) is 1.5 ~ 1.9V; The water-in (27) of housing (28) and water outlet (32) communicate with the mouth of a river of crossing of corresponding first insulating barrier (26) and last insulating barrier (26), sequence number (SN) is that the close upper end of the insulating barrier (26) of odd number was provided with the mouth of a river, and sequence number (SN) is that the close lower end of the insulating barrier (26) of even number was provided with the mouth of a river; The sample connection of conductivitimeter (21) is fixed on inner the crossing in aquaporin of CDI device (3) through housing (28) bottom.
3. the composite type artificial wetland desalination system based on CDI according to claim 2, it is characterized in that described electrode anode (25) and electrode cathode (29) are nanometer zirconium carburizing electrode, nanometer zirconium carburizing electrode is that the zirconium plate of 0.2 ~ 1mm is through sand papering by thickness, polishing, electrochemical anodic oxidation, carbon bag, magnetron sputtering carbon nanotube, obtains nanometer zirconium carburizing electrode; Described carbon nanotube diameter is 2 ~ 60nm.
4. the composite type artificial wetland desalination system based on CDI according to claim 2, is characterized in that described cationic exchange membrane (24) and anion-exchange membrane (31) are homogeneous ion-exchange membrane.
5. the composite type artificial wetland desalination system based on CDI according to claim 2, is characterized in that the thickness of described insulating barrier (26) is 4 ~ 10mm; The material of described insulating barrier (26) and housing (28) is the one in PVC plastic flitch, ABS plastic plate and poly (methyl methacrylate) plate.
6. the composite type artificial wetland desalination system based on CDI according to claim 1, the thickness of plate (9) of evaporating brine described in it is characterized in that is 6.0 ~ 20mm, and mounted angle is 5 ~ 15 °; The material of described plate of evaporating brine (9) is the one in PVC, HIPS, PC plastic plate.
7. the composite type artificial wetland desalination system based on CDI according to claim 1, it is characterized in that described waterplant (10) is cattail, Canna generalis Bailey, more than one in Rush or reed.
8. the composite type artificial wetland desalination system based on CDI according to claim 1, is characterized in that the material of described impervious barrier (18) is the one in chemical-treated soil, geomembrane or pitch; Partition wall is identical with the material of impervious barrier (18).
9. the composite type artificial wetland desalination system based on CDI according to claim 1, is characterized in that the soil of described pedosphere (11) is the mixture of garden waste composting production and soil; Wherein, the volume ratio of garden waste composting production and soil is (10 ~ 20): 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014638.1A CN105541020B (en) | 2015-12-31 | 2015-12-31 | Composite type artificial wetland desalination system based on CDI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014638.1A CN105541020B (en) | 2015-12-31 | 2015-12-31 | Composite type artificial wetland desalination system based on CDI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105541020A true CN105541020A (en) | 2016-05-04 |
| CN105541020B CN105541020B (en) | 2017-11-14 |
Family
ID=55820649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511014638.1A Expired - Fee Related CN105541020B (en) | 2015-12-31 | 2015-12-31 | Composite type artificial wetland desalination system based on CDI |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105541020B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128231A (en) * | 2016-07-27 | 2016-11-16 | 南京君源环保工程有限公司 | A kind of Wetland ecological analog systems |
| CN106745770A (en) * | 2016-12-27 | 2017-05-31 | 怀宁鑫橙信息技术有限公司 | A kind of method for waterproofing |
| CN106809955A (en) * | 2016-12-29 | 2017-06-09 | 聚光科技(杭州)股份有限公司 | Artificial wet land system and its maintaining method |
| CN108892210A (en) * | 2018-07-18 | 2018-11-27 | 江苏科技大学 | A kind of electrolytic cell for seawater desalination mixing capacitor |
| CN109942157A (en) * | 2019-04-24 | 2019-06-28 | 江苏沅芷生态环境有限公司 | Solar-electricity catalytic integration effluent treatment plant |
| CN111410378A (en) * | 2020-04-30 | 2020-07-14 | 生态环境部南京环境科学研究所 | Microorganism-electrochemical coupling treatment system and treatment method for sulfate and fluoride ions in water |
| CN111634985A (en) * | 2020-06-12 | 2020-09-08 | 东北大学 | UiO-66-based CDI pole plate and device and method for removing phosphate |
| CN111825270A (en) * | 2019-04-19 | 2020-10-27 | 南京林业大学 | Subsurface flow type constructed wetland and microbial fuel cell combined system |
| CN112225407A (en) * | 2020-10-26 | 2021-01-15 | 山东光华纸业集团有限公司 | High enriched brine integrated processing system |
| CN112250192A (en) * | 2020-09-23 | 2021-01-22 | 南阳市宣溢环保设备股份有限公司 | Filler capable of greatly enhancing purification efficiency of constructed wetland and wetland bed |
| CN112456635A (en) * | 2020-10-26 | 2021-03-09 | 山东光华纸业集团有限公司 | Anaerobic biological treatment desalting device |
| CN113480086A (en) * | 2021-06-08 | 2021-10-08 | 山东大学 | Comprehensive treatment system and process for landfill leachate |
| WO2023175873A1 (en) * | 2022-03-18 | 2023-09-21 | 三菱電機株式会社 | Ion removal apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7172699B1 (en) * | 2004-10-13 | 2007-02-06 | Eimco Water Technologies Llc | Energy efficient wastewater treatment for nitrogen and phosphorus removal |
| CN101654315A (en) * | 2009-09-17 | 2010-02-24 | 浙江工商大学 | Electrical biofortification domestic sewage treatment device |
| CN105000667A (en) * | 2015-06-05 | 2015-10-28 | 南开大学 | Constructed wetland and microbial fuel cell combined sewage treatment system |
| CN105024089A (en) * | 2015-06-15 | 2015-11-04 | 中国科学院广州能源研究所 | Microbial fuel cell artificial wetland device for sewage treatment and power supply to wetland |
-
2015
- 2015-12-31 CN CN201511014638.1A patent/CN105541020B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7172699B1 (en) * | 2004-10-13 | 2007-02-06 | Eimco Water Technologies Llc | Energy efficient wastewater treatment for nitrogen and phosphorus removal |
| CN101654315A (en) * | 2009-09-17 | 2010-02-24 | 浙江工商大学 | Electrical biofortification domestic sewage treatment device |
| CN105000667A (en) * | 2015-06-05 | 2015-10-28 | 南开大学 | Constructed wetland and microbial fuel cell combined sewage treatment system |
| CN105024089A (en) * | 2015-06-15 | 2015-11-04 | 中国科学院广州能源研究所 | Microbial fuel cell artificial wetland device for sewage treatment and power supply to wetland |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128231A (en) * | 2016-07-27 | 2016-11-16 | 南京君源环保工程有限公司 | A kind of Wetland ecological analog systems |
| CN106745770A (en) * | 2016-12-27 | 2017-05-31 | 怀宁鑫橙信息技术有限公司 | A kind of method for waterproofing |
| CN106809955A (en) * | 2016-12-29 | 2017-06-09 | 聚光科技(杭州)股份有限公司 | Artificial wet land system and its maintaining method |
| CN108892210A (en) * | 2018-07-18 | 2018-11-27 | 江苏科技大学 | A kind of electrolytic cell for seawater desalination mixing capacitor |
| CN111825270A (en) * | 2019-04-19 | 2020-10-27 | 南京林业大学 | Subsurface flow type constructed wetland and microbial fuel cell combined system |
| CN109942157A (en) * | 2019-04-24 | 2019-06-28 | 江苏沅芷生态环境有限公司 | Solar-electricity catalytic integration effluent treatment plant |
| CN111410378B (en) * | 2020-04-30 | 2023-11-24 | 生态环境部南京环境科学研究所 | Microorganism-electrochemical coupling treatment system and treatment method for sulfate radical and fluoride ions in water |
| CN111410378A (en) * | 2020-04-30 | 2020-07-14 | 生态环境部南京环境科学研究所 | Microorganism-electrochemical coupling treatment system and treatment method for sulfate and fluoride ions in water |
| CN111634985A (en) * | 2020-06-12 | 2020-09-08 | 东北大学 | UiO-66-based CDI pole plate and device and method for removing phosphate |
| CN112250192A (en) * | 2020-09-23 | 2021-01-22 | 南阳市宣溢环保设备股份有限公司 | Filler capable of greatly enhancing purification efficiency of constructed wetland and wetland bed |
| CN112456635A (en) * | 2020-10-26 | 2021-03-09 | 山东光华纸业集团有限公司 | Anaerobic biological treatment desalting device |
| CN112225407A (en) * | 2020-10-26 | 2021-01-15 | 山东光华纸业集团有限公司 | High enriched brine integrated processing system |
| CN113480086A (en) * | 2021-06-08 | 2021-10-08 | 山东大学 | Comprehensive treatment system and process for landfill leachate |
| WO2023175873A1 (en) * | 2022-03-18 | 2023-09-21 | 三菱電機株式会社 | Ion removal apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105541020B (en) | 2017-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105541020A (en) | CDI (Capacitive Deionization) based compound type constructed wetland desalination system | |
| CN105836873B (en) | A kind of microorganism battery | |
| CN110143720A (en) | A kind of the artificial swamp microbiological fuel cell coupling device and its wastewater treatment method of multimedium filtrate | |
| CN101264946A (en) | Iron-carbon pipe component capable of purifying waste water, integrated magnetoelectric oxidation biological filter chamber and application system | |
| CN101823792A (en) | Device, system and method for vertical multilevel soil permo-treatment of sewage and mixed fillers | |
| CN102351382B (en) | Combined treatment method of leachate and excrement wastewater | |
| CN106045198A (en) | System and method for treating polymer-containing waste water by electrocatalytic oxidation coupling biological system | |
| CN106986501B (en) | Method and device for treating sewage by coupling electric osmosis reaction wall and constructed wetland | |
| CN101585607B (en) | Preparation method for substrate of vertical-flow constructed wetlands | |
| CN103145264B (en) | Purifying treatment and recycling process for high-salt-content reclaimed water | |
| CN112939381A (en) | Multi-efficiency combined biological filter | |
| CN206901979U (en) | A kind of device of electronic permeable reactive wall and artificial swamp coupling treatment of sewage water | |
| CN109205928A (en) | A kind of method and system of advanced treating percolate | |
| CN204111517U (en) | The three-dimensional electric biological coupling reactor of a kind of air water anisotropic flow | |
| CN105417890B (en) | Artificial swamp heavy metal deionization cleaning system based on super capacitor | |
| CN104118966A (en) | A three-dimensional electric-biology-coupled water purification system with gas and water flowing at different directions and a water purification method | |
| CN201785809U (en) | Water supply and drainage circulating device for communities | |
| CN1201759A (en) | Continuously adsorbing-electrolyzing regenerated wastewater treating apparatus | |
| CN101306869A (en) | Modified zeolite biological filter process method for waste water and landscape water and apparatus | |
| CN203095803U (en) | Device for upgrading and rebuilding and advanced treatment process of urban sewage plant | |
| CN105130124B (en) | The collaboration minimizing technology of nitrate nitrogen, ammonia nitrogen and COD in a kind of polluted-water | |
| CN210150911U (en) | Artificial floating island type sewage purification device | |
| CN205347041U (en) | On -vehicle portable sewage treatment system | |
| CN203402996U (en) | System for processing nitrogenous wastewater by utilizing acid neutralization residues and dehydration aluminum sludge | |
| CN103395951B (en) | System capable of utilizing acid to neutralize slags and dehydrated aluminum sludge to treat nitrogenous wastewater and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171114 Termination date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |