CN102010023A - Device for removing phosphorus from outlet water at tail end of artificial wetland by using aerated concrete waste residues - Google Patents
Device for removing phosphorus from outlet water at tail end of artificial wetland by using aerated concrete waste residues Download PDFInfo
- Publication number
- CN102010023A CN102010023A CN2010105190381A CN201010519038A CN102010023A CN 102010023 A CN102010023 A CN 102010023A CN 2010105190381 A CN2010105190381 A CN 2010105190381A CN 201010519038 A CN201010519038 A CN 201010519038A CN 102010023 A CN102010023 A CN 102010023A
- Authority
- CN
- China
- Prior art keywords
- water
- pond
- phosphorus
- zone
- concrete waste
- 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.)
- Pending
Links
Images
Landscapes
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a device for removing phosphorus from outlet water at tail end of an artificial wetland by using aerated concrete waste residues. The device is positioned in a purifying pond at the water outlet of the tail end of the artificial wetland, and aerated concrete waste residues are filled in the pond; the length, width and depth of the pond are determined according to the topography, but the total capacity needs to be met the requirement of ensuring that the hydraulic retention time in the pond is greater than 1.5 hours, and the water in the pond flows from bottom to top; the purifying pond is divided into a catchment zone, a phosphorus adsorption zone and a final water outlet zone from bottom to top; the side wall of the catchment zone on the lower part is provided with a sewage introduction port; the phosphorus adsorption zone above the catchment zone is an aerated concrete fragment suspension zone; and fixed cement partitions and movable wood partitions, which are arranged at certain intervals, are laid between the phosphorus adsorption zone and the final water outlet zone over the phosphorus adsorption zone. The device has the advantages of obviously improving the quality of the outlet water, and thoroughly solving the problem that phosphorus in most conventional artificial swamps can not be removed continuously and efficiently at present through the unpowered upward uniform flow of water in the purifying pond and the regular replacement of aerated concrete waste residues.
Description
Technical field
The present invention has announced the phosphorus adsorptive power of utilizing building castoff gas concrete waste residue extremely strong, and the technological method of efficient dephosphorization is implemented in terminal water outlet to artificial swamp, belongs to the technical field of water environment treatment and utilization of waste as resource.
Background technology
Artificial swamp is as a novel dirty water living creature processing technique, relies on advantages such as its scale is flexible, processing efficiency is higher, operation cost is low, be convenient to manage especially to be fit to handle fragmentary the dispersion and vast domestic sewage in rural areas by using that inconvenience focuses on.For this reason, Jiangsu Province promotes as the first-elected technology in the Rural Water Environment regulation this technology in the whole province.The artificial swamp purification function is mainly realized by processes such as plant absorbing, filling adsorption and microbiological degradation.Wherein plain removal of phosphorus mainly is the adsorption that relies on filler, and the multinomial materials such as slag, cinder and flyash that are rich in calcium, aluminium, ferriferous oxide that studies show that have stronger phosphorus adsorptive power.Stop absorption but these materials will adsorb saturated in a short time, even cause secondary phosphorus to pollute because of the plain desorb of phosphorus.And these material particle sizes are all less, do to cause that very easily wetland stops up behind the filler.Therefore, for the artificial swamp more than decades in work-ing life, seldom utilize these materials in the practical application, but utilize the relatively low stone of phosphorus adsorptive power to fill each layer of wetland by different-grain diameter more, to guarantee that current are unobstructed lastingly in the wetland, this moment, phosphorus was removed the main a small amount of absorption that relies on wetland plant, therefore, when handling the higher domestic sewage in rural areas by using of TP content, the TP index often is difficult to up to standard in the water outlet.
Gas concrete is a kind of material of construction that has insulation, fire prevention and anti-freezing property and widely utilized, a large amount of waste residues that produce in the construction process, and the Chang Zuowei building waste goes out of use.This material mainly is made up of flyash, unslaked lime, cement, gypsum and a small amount of foaming agent aluminium powder cream, and voidage is big, and unit weight is at 400-700kg/m
3Scope, may float on the water surface, be rich in the materials such as active silica, calcium oxide, ferric oxide, aluminum oxide that the phosphorus element had strong adsorptive power, and desorption efficiency is low, is fit to handle TP and usually is difficult to the terminal water outlet (it is 6.06g/kg that test records the phosphorus maximum adsorption capacity) of artificial swamp up to standard.
Summary of the invention
Technical problem: the gas concrete waste residue that the present invention seeks to have strong phosphorus adsorptive power by utilization, advanced treatment TP usually is difficult to the terminal water outlet of artificial swamp up to standard, solves to be difficult to realize the plain efficient removal problem of phosphorus in the conventional artificial wetland rural sewage treating processes.Invention has also realized the recycling of building castoff simultaneously, has good social benefit, economic benefit and environmental benefit.
The gas concrete waste residue of being made up of flyash, unslaked lime, cement, gypsum and a small amount of foaming agent aluminium powder cream among the present invention is rich in the metal oxides such as calcium, aluminium, iron that the phosphorus element had strong adsorptive power, and porosity is big, unit weight is little, can be used as the below standard water outlet of the terminal TP of phosphorus sorbing material advanced treatment artificial swamp.
Utilize the gas concrete waste residue to remove the device of the terminal water outlet phosphorus of artificial swamp element, described device is the treating pond that is positioned at terminal water outlet place of artificial swamp, fills out in the pond and puts the gas concrete waste residue; Wherein the pond length and width, decide because of physical features deeply, but total volume should be guaranteed the pool inner water power residence time greater than 1.5h, the design current are bottom-up in the pond; Bottom-up water catchment area, the plain adsorption zone of phosphorus and final outflow water district three parts of being divided into for the treatment of pond; Wherein the sewage introducing port is set at the water catchment area of bottom sidewall, be connected to the pvc pipe net of laying in the district, the plain adsorption zone of the phosphorus on top, water catchment area is gas concrete fragment suspension zone, and interval fixedly cement baffle and the movable timber partition that leaves certain slit of laying of the final outflow water on the plain adsorption zone of phosphorus and its top, final outflow water district sidewall is offered the final outflow water mouth, and its elevation should be lower than the terminal bed of artificial swamp body water surface 40cm at least.
Beneficial effect of the present invention: by the gas concrete adsorption, the phosphorus cellulose content significantly reduces, final outflow water TP index can be stablized and reaches " urban wastewater treatment firm pollutant emission standard " and determine one-level B standard, thoroughly solve conventional artificial wetland rural sewage and be difficult to realize that phosphorus is plain continues efficient removal problem in handling, effectively promoted the fundamental turn for the better of vast Rural areas water environment situation.
The gas concrete that the present invention adopts has characteristics such as porosity is big, unit weight is low, specific surface area is big, can improve the phosphorus adsorptive power, can float on the water surface again, is convenient to new and old waste residue and changes, and reduces running cost.
Utilization was that the gas concrete waste residue of building waste carries out advanced treatment of wastewater originally, had realized utilization of waste as resource, met current social theme of developing a circular economy, and had significant environmental benefit, economic benefit and social benefit.
Innovation part of the present invention is: will have the building castoff of strong adsorptive power to the phosphorus element, be applied in the constructed wetland domestic sewage treatment process, significantly improved effluent quality, and, thoroughly solved the conventional artificial swamp of present majority and be difficult to realize the plain lasting efficient removal problem of phosphorus by the unpowered evenly periodic replacement of trickling and gas concrete waste residue from bottom to top of the interior current for the treatment of pond.
Description of drawings
Fig. 1 is a technology treating pond sectional view of the present invention; Wherein, 1 water catchment area, 1-1 imports the mouth of a river, 1-2 water distribution pipe network, the plain adsorption zone of 2 phosphorus, 2-1 gas concrete waste residue, 3 final outflow water districts, 3-1 final outflow water mouth, 4 dividing plates;
Fig. 2 lays vertical view for the water catchment area pvc pipe; Wherein, 1-1 imports the mouth of a river, 1-2 water distribution pipe network; The 1-3 discharge orifice;
Fig. 3 is that the interval dividing plate of phosphorus adsorption zone and final outflow water is laid vertical view; Wherein, 4-1 is cement baffle fixedly, the movable timber partition of 4-2,4-3 dividing plate slit.
Embodiment
Certain rural residential area, area adopts anaerobic pond-artificial swamp technology to carry out sanitary sewage disposal, about 500 residents in this population center, designing treatment water yield 40m in the Jiangsu Province Soviet Union
3/ d, artificial swamp area 100 m
2, filler is the different-grain diameter stone, plants such as plantation reed, cattail, Canna generalis Bailey.During annual sewage is loaded the highest Spring Festival, NH in the water outlet
4-N and TN all can reach " urban wastewater treatment firm pollutant emission standard " secondary standard, but TP only can reach " urban wastewater treatment firm pollutant emission standard " grade III Standard in the minority month of the whole year.By having implemented this invention at the artificial swamp end, during sewage load the highest Spring Festival in the water outlet TP can stablize and reach " urban wastewater treatment firm pollutant emission standard " one-level B standard-required.
This population center utilizes the gas concrete waste residue to remove the treating pond length and width of the terminal water outlet phosphorus of artificial swamp element, be designed to 2m, 1m and 1.8m deeply respectively, design hydraulic detention time 1.8h, and water (flow) direction is from bottom to top.Divide from bottom to top on the section water catchment area 1(height-1.5--1.8m), phosphorus adsorption zone 2(height-0.3--1.5m), final outflow water district 3 (high by 0--0.3m).Wherein, wetland effluent is by after importing mouth of a river 1-1 importing water catchment area 1, the φ 40mm discharge orifice 1-3 that spuds in every 30cm on water distribution pipe network 1-2 that three long 1.8m, φ 110mmPVC pipe is formed and body shunts and current-sharing, makes it evenly to flow into the plain adsorption zone 2 of phosphorus; The plain adsorption zone 2 of phosphorus is gas concrete fragment suspension zone, also is the main purifying area of water body; 3 in plain adsorption zone 2 of phosphorus and final outflow water district use 3 cement baffle 4-1 and 3 movable timber partition 4-2 of long 1.2m, wide 0.3m to embed in the pool wall groove respectively, emerge with gas concrete waste residue 2-1 during stoping processing, every 4 on dividing plate stays wide about 3cm dividing plate slit 4-3 so that current are up.Offer final outflow water mouth 3-1 at final outflow water district 3 sidewalls, final outflow water mouth 3-1 is than the low approximately 48cm of the terminal bed of the artificial swamp body water surface.
In implementation process, the pvc pipe when putting gas concrete waste residue 2-1 for avoiding filling out in the damage water catchment area 1 injects half Chi Shui earlier in treating pond, after just with the about 2.4m of volume
3, heavily about 1 ton of diameter is 5-6cm gas concrete waste residue 2-1 inserts.When the saturated replacing gas concrete waste residue 2-1 of absorption, open the movable timber partition 4-2 in phosphorus adsorption zone 2 and 3 in final outflow water district, the gas concrete waste residue 2-1 after making absorption saturated floats on the water surface so that operate.
Load the highest period in the Spring Festival at sewage, wetland effluent TP content is between the 5.24-5.45, after gas concrete waste residue 2-1 adsorption treatment, TP content scope between 0.33-0.62, stable " urban wastewater treatment firm pollutant emission standard " one-level B standard-required that reaches of TP in the effluent quality.Remove efficient all more than 90%, early stage, clearance was the highest, after slowly descend, 90% clearance can maintain about 30 days, amounted to more than the about 60kg of phosphorus adsorptive capacity, near the waste residue maximum adsorption capacity.Therefore, in the pollution load peak period, the gas concrete waste residue 2-1 replacing time is preferably 30 days, and in lower month of load, waste residue is changed the time can be because of the situation proper extension.
Claims (1)
1. utilize the gas concrete waste residue to remove the device of the terminal water outlet phosphorus of artificial swamp element, described device is the treating pond that is positioned at terminal water outlet place of artificial swamp, it is characterized in that filling out in the pond putting the gas concrete waste residue; Wherein the pond length and width, decide because of physical features deeply, but total volume should be guaranteed the pool inner water power residence time greater than 1.5h, the design current are bottom-up in the pond; Bottom-up water catchment area, the plain adsorption zone of phosphorus and final outflow water district three parts of being divided into for the treatment of pond; Wherein the sewage introducing port is set at the water catchment area of bottom sidewall, be connected to the pvc pipe net of laying in the district, the plain adsorption zone of the phosphorus on top, water catchment area is gas concrete fragment suspension zone, and interval fixedly cement baffle and the movable timber partition that leaves certain slit of laying of the final outflow water on the plain adsorption zone of phosphorus and its top, final outflow water district sidewall is offered the final outflow water mouth, and its elevation should be lower than the terminal bed of artificial swamp body water surface 40cm at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105190381A CN102010023A (en) | 2010-10-26 | 2010-10-26 | Device for removing phosphorus from outlet water at tail end of artificial wetland by using aerated concrete waste residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105190381A CN102010023A (en) | 2010-10-26 | 2010-10-26 | Device for removing phosphorus from outlet water at tail end of artificial wetland by using aerated concrete waste residues |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102010023A true CN102010023A (en) | 2011-04-13 |
Family
ID=43840382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105190381A Pending CN102010023A (en) | 2010-10-26 | 2010-10-26 | Device for removing phosphorus from outlet water at tail end of artificial wetland by using aerated concrete waste residues |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102010023A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706739A (en) * | 2018-07-13 | 2018-10-26 | 江苏省城镇供水安全保障中心 | Aquatic artificial wetland device and its method applied to digestion in water bath |
| CN110498659A (en) * | 2019-08-30 | 2019-11-26 | 杭州沁霖生态科技有限公司 | A kind of lightweight dephosphorization granule filter material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893975A (en) * | 1997-04-23 | 1999-04-13 | Roux Associates, Inc. | Enhanced subsurface flow constructed wetland |
| CN1935696A (en) * | 2006-10-13 | 2007-03-28 | 东南大学 | Filler-changeable artificial wet land reinforced phosphor-removing denitrifying method and reinforced phosphor-removing denitrifying tank |
| CN101475253A (en) * | 2008-12-01 | 2009-07-08 | 深圳市龙澄高科技环保有限公司 | Method for removing phosphor-containing wastewater by using fly ash aerated concrete slag |
| CN101767915A (en) * | 2010-01-13 | 2010-07-07 | 广西大学 | Method for treating land with domestic sewage at water-source forest land of mountain area |
| CN201981033U (en) * | 2010-10-26 | 2011-09-21 | 江苏大学 | Device for removing phosphorin in outgoing water at tail end of artificial wetland by utilizing aerated concrete waste slags |
-
2010
- 2010-10-26 CN CN2010105190381A patent/CN102010023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893975A (en) * | 1997-04-23 | 1999-04-13 | Roux Associates, Inc. | Enhanced subsurface flow constructed wetland |
| CN1935696A (en) * | 2006-10-13 | 2007-03-28 | 东南大学 | Filler-changeable artificial wet land reinforced phosphor-removing denitrifying method and reinforced phosphor-removing denitrifying tank |
| CN101475253A (en) * | 2008-12-01 | 2009-07-08 | 深圳市龙澄高科技环保有限公司 | Method for removing phosphor-containing wastewater by using fly ash aerated concrete slag |
| CN101767915A (en) * | 2010-01-13 | 2010-07-07 | 广西大学 | Method for treating land with domestic sewage at water-source forest land of mountain area |
| CN201981033U (en) * | 2010-10-26 | 2011-09-21 | 江苏大学 | Device for removing phosphorin in outgoing water at tail end of artificial wetland by utilizing aerated concrete waste slags |
Non-Patent Citations (1)
| Title |
|---|
| 《工业安全与环保》 20090810 孙立明等 加气混凝土砌块碎渣对磷吸附特性的研究 1 第35 卷, 第8 期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108706739A (en) * | 2018-07-13 | 2018-10-26 | 江苏省城镇供水安全保障中心 | Aquatic artificial wetland device and its method applied to digestion in water bath |
| CN110498659A (en) * | 2019-08-30 | 2019-11-26 | 杭州沁霖生态科技有限公司 | A kind of lightweight dephosphorization granule filter material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201834804U (en) | Biological aeration filter | |
| CN201952325U (en) | Stepwise function-reinforced biological ecological oxidation pond | |
| CN101811800B (en) | Domestic sewage treatment device | |
| CN101514053B (en) | Eutrophication water body artificial wetland processing system taking steel-making waste residue as a substrate | |
| CN102276110B (en) | Method for remedying micro-polluted water body and subsurface flow artificial wetland system | |
| WO2009094882A1 (en) | A tower type earthworm ecological filter chamber system | |
| CN108558141B (en) | Biological-ecological combined treatment system and method for rural sewage under low-temperature condition | |
| CN105645589B (en) | Deep-bed constructed wetland reactor capable of converting operation modes | |
| CN101121570A (en) | Method and device for treating domestic sewage by earthworm strengthened artificial wet land | |
| CN204022548U (en) | A kind of denitrification organisms ball | |
| RU2440932C2 (en) | Installation for deep biochemical treatment of effluents with high content of organic contaminants, carbon sulphide, hydrosulphides, and ammonium nitrogen | |
| CN202671302U (en) | Concrete foam ecological floating bed body | |
| CN101851023A (en) | Underflow type constructed wetland system with coke powder-steel slag compound filler | |
| CN103030251B (en) | Two-phase layered domestic sewage percolation treatment system | |
| CN203144245U (en) | Combined artificial wetland sewage treatment system suitable for medium and small towns | |
| CN206692417U (en) | A kind of three-dimensional composite constructed wetland system | |
| CN102001756A (en) | Stable surface flow wetland for preventing silting and sewage treatment method | |
| CN205398236U (en) | Use constructed wetland of building waste for packing | |
| CN102010023A (en) | Device for removing phosphorus from outlet water at tail end of artificial wetland by using aerated concrete waste residues | |
| CN104773898A (en) | Physicochemical-artificial wetland combined process for strengthening treatment of fluorine and arsenic sewage | |
| CN201981033U (en) | Device for removing phosphorin in outgoing water at tail end of artificial wetland by utilizing aerated concrete waste slags | |
| CN101456653B (en) | Device of individual type sewage drainage ecological treatment and method thereof | |
| CN104016484A (en) | Upwelling artificial wetland for removing nitrogen, phosphorus and antibiotics in aquaculture wastewater | |
| CN202380569U (en) | Small rain and sewage regulating and purifying integrated device | |
| CN105060462A (en) | Tower biological filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110413 |