CN203513445U - Underground water oxidized pollutant treating device - Google Patents
Underground water oxidized pollutant treating device Download PDFInfo
- Publication number
- CN203513445U CN203513445U CN201320661967.5U CN201320661967U CN203513445U CN 203513445 U CN203513445 U CN 203513445U CN 201320661967 U CN201320661967 U CN 201320661967U CN 203513445 U CN203513445 U CN 203513445U
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- treating pond
- partition wall
- pond
- reduction
- water
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model provides an underground water oxidized pollutant treating device, which comprises a front biological treating pond, a back biological treating pond, a front reduction treating pond, a back reduction treating pond and an ecological purifying pond connected in sequence, wherein the lower part of the outer side wall of the front biological treating pond is provided with a water inlet; the front biological pond and the back biological treating pond are isolated through a first partition wall; the upper part of the first partition wall is provided with a water flow hole; the back biological treating pond and the front reduction treating pond are isolated through a second partition wall; the lower part of the second partition wall is provided with a water flow hole; the front reduction treating pond and the back reduction treating pond are isolated through a third partition wall; the upper part of the third partition wall is provided with a water flow hole; the back reduction treating pond and the ecological purifying pond are isolated by a fourth partition wall; the lower part of the fourth partition wall is provided with a water flow hole; the lower part of the outer side wall of the ecological purifying pond is provided with a water outlet; both the biological treating pond and the reduction treating pond are filled with fillers. The underground water oxidized pollutant treating device has the advantages of low treatment cost, no need of additionally providing hydrogen and carbon dioxide, good treating effect and avoidance of secondary pollution.
Description
Technical field
The utility model relates to a kind of device for the treatment of removing oxidative pollutant in shallow ground water, belongs to groundwater treatment technical field.
Background technology
For the processing of the oxidative pollutants such as nitrate in groundwater and valence heavy metal ions, mainly contain at present physical partition method, chemical reduction method and biological process.Physico-chemical processes (ion-exchange, reverse osmosis, electrodialysis etc.), although treatment effect is good, need be got underground water pump, then processes on the ground, floor space is large, and device is complicated, and cost is high, the concentrating spent liquor producing after processing also needs further processing, has secondary pollution problem; It is main reducing material that original position subsurface wastewater infiltration system wall technology often adopts Nanoscale Iron, utilizes Nanoscale Iron particle diameter little, and specific surface area is large, and surfactivity is high, is made into the underground water that slurry directly injects pollution, can realize the fast degradation to pollutent.Yet the size that nanoparticle is small and high surface can make it be easy to reunite in water body, difficult dispersion; Simple nano iron particles reduction rate is slow, poor stability, and easy inactivation, sludge output is large.
The additional carbon of heterotrophic denitrification can be divided into take that the liquid state organics such as methyl alcohol, ethanol, acetic acid, glucose are main traditional carbon source and is the novel carbon source of leading with biodegradable polymkeric substance (comprising natural cellulose class material, as cotton, straw, rice husk, bark, newspaper etc.) and synthetic polymkeric substance (as PHB (poly-beta-hydroxy-butanoic acid)).Yet, traditional carbon source exist cost high, add excessive hidden danger, easily produce secondary pollution, need accurately to control the process that add.Synthetic polymkeric substance price is higher, and the carbon source of natural cellulose class material discharges and can not be effectively controlled, and can bring higher dissolved organic carbon and colourity problem.
Hydrogen autotrophic organism membrane technique, when application underground water denitration and reduction valence heavy metal ions, need to additionally pass into hydrogen as electron donor, additionally adds carbonic acid gas as inorganic carbon source, and mould material price is higher, and application is restricted.
Summary of the invention
The deficiency that the utility model exists for oxidative pollutant treatment technology in existing underground water, provides a kind of simple in structure, underground water oxidative pollutant treatment unit that treatment effect is good.
Underground water oxidative pollutant treatment unit of the present utility model, by the following technical solutions:
This device, comprises the front biological treatment tank, artifact treating pond, pre reduction treating pond, rear reduction treating pond and the ecological purification pond that connect successively; The outer side wall bottom of front biological treatment tank is provided with water-in, and front biological treatment tank and artifact treating pond separate by the first partition wall, and the top of the first partition wall was provided with water hole; Artifact treating pond and pre reduction treating pond separate by the second partition wall, and the bottom of the second partition wall was provided with water hole; Pre reduction treating pond and rear reduction treating pond separate by the 3rd partition wall, and the top of the 3rd partition wall was provided with water hole; Rear reduction treating pond and ecological purification pond separate by the 4th partition wall, and the bottom of the 4th partition wall was provided with water hole; The outer side wall bottom in ecological purification pond is provided with water outlet; The equal solid-state organism filler of filled natural in front biological treatment tank and artifact treating pond; In pre reduction treating pond and rear reduction treating pond, all fill Nanoscale Iron compounded mix.
The first natural solid-state organism filler of said apparatus carries out denitrification processing, in reduction nitrate, produces carbonic acid gas, and Nanoscale Iron compounded mix is because of Zero-valent Iron reduction reaction generation hydrogen, and at filling surface growth hydrogen autotrophic organism film, autotrophic microorganism utilizes CO
2for carbon source, using hydrogen as electron donor, take oxidative pollutant as electron acceptor(EA), oxidative pollutant reduction or degraded (are reduced to nitrogen by nitrate, high price heavy metal is reduced to lower valency and generates low toxicity difficulty soluble salt throw out), by fill sandy soil in ecological purification pond, plantation trees further absorb removal pollutent, reach the object of water purification.
The utility model adopts heterotrophism, autotrophic denitrification and Zero-valent Iron reduction coupling to process, and processing cost is low, and without hydrogen and carbonic acid gas are additionally provided, hydrogen utilization ratio is high, and treatment effect is good, and biomass yield is low, non-secondary pollution.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model underground water oxidative pollutant treatment unit.
In figure: 1, water-in, 2, front biological treatment tank, 3, artifact treating pond, 4, pre reduction treating pond, 5, rear reduction treating pond, 6, ecological purification pond, 7, water outlet, 8, cross water hole, 9, the first partition wall, the 10, second partition wall, the 11, the 3rd partition wall, the 12, the 4th partition wall.
Embodiment
As shown in Figure 1, underground water oxidative pollutant treatment unit of the present utility model, mainly comprises the front biological treatment tank 2, artifact treating pond 3, pre reduction treating pond 4, rear reduction treating pond 5 and the ecological purification pond 6 that connect successively.The outer side wall bottom of front biological treatment tank 2 is provided with water-in 1, and front biological treatment tank 2 and artifact treating pond 3 separate by the first partition wall 9, and the top of the first partition wall 9 was provided with water hole 8.Artifact treating pond 3 and pre reduction treating pond 4 separate by the second partition wall 10, and the bottom of the second partition wall 10 was provided with water hole.Pre reduction treating pond 4 and rear reduction treating pond 5 separate by the 3rd partition wall 11, and the top of the 3rd partition wall 11 was provided with water hole.Rear reduction treating pond 5 and ecological purification pond 6 separate by the 4th partition wall 12, and the bottom of the 4th partition wall 12 was provided with water hole.The outer side wall top in ecological purification pond 6 is provided with water outlet 7.The solid-state organism filler of the interior equal filled natural of front biological treatment tank 2 and artifact treating pond 3 (as straw).The interior Nanoscale Iron compounded mix of all filling of pre reduction treating pond 4 and rear reduction treating pond 5.The interior filling sandy soil in ecological purification pond 6, plantation trees.
The operational process of above-mentioned underground water oxidative pollutant treatment unit is as described below:
First underground water enter front biological treatment tank 2 through water-in 1, the natural solid-state organism filler of flowing through from bottom to top in front biological treatment tank 2, then by the natural solid-state organism filler of flowing through in artifact treating pond 3 from top to bottom in water hole 8 of crossing on the first partition wall 9 tops, at front biological treatment tank 2, fully contact with natural solid-state organism filler with underground water in artifact treating pond 3, guarantee that current have enough hydraulic detention times in treatment zone.Polluted underground water flow through before in the process of biological treatment tank 2 and artifact treating pond 3, the carbon source that the microbial film on natural solid-state organism filler can utilize filler itself slowly to discharge, is nitrogen by the nitrate reduction in water body, produces CO simultaneously
2.
Underground water continues to enter pre reduction treating pond 4 by the water hole of crossing of the second partition wall 10 bottoms, before flowing through from the bottom to top, combine the Nanoscale Iron compounded mix in reduction treating pond 4, the water hole of crossing by the 3rd partition wall 11 tops enters rear reduction treating pond 4 from top to bottom again, the Nanoscale Iron compounded mix reducing after flowing through in treating pond 5.At groundwater flow, in the process of mixed fillers, Nanoscale Iron compounded mix utilizes the reductive action of Zero-valent Iron, and the high price inorganic metal ion in water inlet is reduced to lower valency, reduces its toxicity, and degradation process produces H simultaneously
2and OH
-, the metal ion after reduction more easily forms metal hydroxides solid sediment; Meanwhile, Nanoscale Iron compounded mix surface growth hydrogen autotrophic microorganism, hydrogen autotrophic organism film carries out the pollutents such as nitrate in the further deoxidization, degradation water body of biological reducing effect, high volence metal ion.The required electron donor of autotrophic microorganism respiration is provided by hydrogen, and electron acceptor(EA) is for being reduced material, and required carbon source is by the CO of front biological treatment tank 2 and 3 generations of artifact treating pond
2supplement.
Then underground water enters ecological purification pond 6 through the water hole of crossing of the 4th partition wall 12 bottoms, in this region, utilize the absorption of tree root to nutrition, the nutritive salt of low levels in the underground water of crossing through the first two regional processing is further absorbed to removal as nitrate, inorganic metal ion, finally by water outlet 7, discharged.
Claims (1)
1. a underground water oxidative pollutant treatment unit, is characterized in that: comprise the front biological treatment tank, artifact treating pond, pre reduction treating pond, rear reduction treating pond and the ecological purification pond that connect successively; The outer side wall bottom of front biological treatment tank is provided with water-in, and front biological treatment tank and artifact treating pond separate by the first partition wall, and the top of the first partition wall was provided with water hole; Artifact treating pond and pre reduction treating pond separate by the second partition wall, and the bottom of the second partition wall was provided with water hole; Pre reduction treating pond and rear reduction treating pond separate by the 3rd partition wall, and the top of the 3rd partition wall was provided with water hole; Rear reduction treating pond and ecological purification pond separate by the 4th partition wall, and the bottom of the 4th partition wall was provided with water hole; The outer side wall bottom in ecological purification pond is provided with water outlet; The equal solid-state organism filler of filled natural in front biological treatment tank and artifact treating pond; In pre reduction treating pond and rear reduction treating pond, all fill Nanoscale Iron compounded mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661967.5U CN203513445U (en) | 2013-10-25 | 2013-10-25 | Underground water oxidized pollutant treating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661967.5U CN203513445U (en) | 2013-10-25 | 2013-10-25 | Underground water oxidized pollutant treating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203513445U true CN203513445U (en) | 2014-04-02 |
Family
ID=50372403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320661967.5U Expired - Fee Related CN203513445U (en) | 2013-10-25 | 2013-10-25 | Underground water oxidized pollutant treating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203513445U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455799A (en) * | 2018-04-04 | 2018-08-28 | 南京瑞迪建设科技有限公司 | Sewage disposal system and method |
-
2013
- 2013-10-25 CN CN201320661967.5U patent/CN203513445U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455799A (en) * | 2018-04-04 | 2018-08-28 | 南京瑞迪建设科技有限公司 | Sewage disposal system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |