CN108341496A - A kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater - Google Patents
A kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater Download PDFInfo
- Publication number
- CN108341496A CN108341496A CN201710050686.9A CN201710050686A CN108341496A CN 108341496 A CN108341496 A CN 108341496A CN 201710050686 A CN201710050686 A CN 201710050686A CN 108341496 A CN108341496 A CN 108341496A
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- Prior art keywords
- rainwater
- soluble organic
- organic nitrogen
- filler
- ferro
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- 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
-
- 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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of biological delaying basin fillers for handling soluble organic nitrogen in rainwater, the filler is made of charcoal, manganese dioxide, zeolite, sandy loam, ferro-aluminum sludge, the charcoal, manganese dioxide, zeolite, sandy loam and ferro-aluminum sludge volume ratio be (1~4)：(1~3)：(2~3)：(3~4)：(1~3), ferro-aluminum sludge are that the sludge generated by coagulating sedimentation after coagulant is added in the water inlet of waterworks, contain metallic aluminium and ferro element.The filler of this invention is to remove the soluble organic nitrogen in water removal, the comprehensive utilization effect of filler is considered during choosing, there is very high performance in water penetration, water resistance, purifying water body etc., and it can effectively extend the rainwater residence time, so that the soluble organic nitrogen in rainwater has the sufficient time to carry out ammonification nitrification so that the nitrogen content in rainwater can reach in source to be effectively treated.
Description
Technical field
The invention belongs to water treatment fields, and in particular to a kind of biology for handling soluble organic nitrogen in rainwater is detained
Pond filler.
Background technology
With the propulsion of urbanization, a large amount of natural greenery patchess are replaced by waterproof underlying surface, the raising of waterproof coverage rate and
Vegetation such as reduces at the nitrogen retentivity that factors greatly reduce urban area during heavy rain, so that nitrogen content in receiving water body
Increase, generates the eutrophication of water body.Biological delaying basin (also known as Rain Garden) be it is a kind of using dispersing method, from source reduction
The efficient rainwater management measure of rainwater and control contaminant transportation.It is dissolving that traditional biological delaying basin water outlet nitrogen, which is primarily present form,
Property organic nitrogen (DON) and nitrate nitrogen, therefore, the key for improving biological delaying basin nitrogen removal efficiency is to improve soluble organic nitrogen
Removal efficiency.
Rainfall runoff is shorter (being generally 1~10h) in the residence time that traditional biological is detained in cell system, however DON
Hydrolysis-ammonification-nitrification-denitrification process need to be passed through by completely removing, and the required residence time is longer.It is first to improve DON removal efficiency
First to extend DON residence times in biological gaseous-waste holdup system.To reach this purpose, can be loaded in traditional biological delaying basin has
The filler of DON functions is adsorbed, Adsorption And Retention DON extends residence times of the DON in biological gaseous-waste holdup system, and is translated into
Ammonia nitrogen, nitrate nitrogen realize the thorough removal of DON.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind for handling soluble organic nitrogen in rainwater
Biological delaying basin filler.The filler can extend DON in the residence time of biological delaying basin, carry out the processes such as ammonification, nitrification.It should
Filler has good water penetration and water resistance, has stronger DON adsorption capacities, and is conducive to nitrobacteria growth, realizes
The nitrification of DON, while cost is relatively low, raw material is easy to get, and has greater advantage in actually promoting.
To achieve the above object, the invention is realized by the following technical scheme：
A kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater, by charcoal, manganese dioxide, boiling
Stone, sandy loam, ferro-aluminum sludge composition, the charcoal, manganese dioxide, zeolite, sandy loam and ferro-aluminum sludge volume ratio be
(1~4)：(1~3)：(2~3)：(3~4)：(1~3), ferro-aluminum sludge are added after coagulant by coagulation in the water inlet of waterworks
The sludge generated is precipitated, metallic aluminium and ferro element are contained.
Moreover, the charcoal, manganese dioxide, zeolite, sandy loam and ferro-aluminum sludge volume ratio be (2~3)：(1~
2)：(2~2.5)：(3~3.5)：(1~2).
Be carbonized under low-oxygen environment and to obtain moreover, the charcoal is stalk, rubber trees or coconut husk, reaction is warm
Degree is 200~700 DEG C, such as is generated by microwave radiation technology carbonization technology under the conditions of 250~300 DEG C by palm shell, Huo Zheyou
Rice straw is generated under the conditions of 350~400 DEG C by cracking carbonization technology, or by maize straw in 300~350 DEG C of anoxics
Under the conditions of pass through crack carbonization technology generate.
Moreover, the manganese dioxide is manganese sand filtering material, grain size is 0.1~0.4mm.
Moreover, the grain size of the zeolite is 3~5mm.
Moreover, the grain size of the sandy loam is 1~2.5mm.
Moreover, the ferro-aluminum sludge be added in water inlet in waterworks aluminium polychloride, after bodied ferric sulfate by
The sludge that coagulating sedimentation generates.
Above-mentioned filler selects charcoal, manganese dioxide, zeolite, sandy loam and ferro-aluminum sludge to be mixed when being prepared
It closes uniform.
Biological delaying basin is built using above-mentioned filler, soluble organic nitrogen in rainwater is handled, mixes and fill out when being used
The total height of the bed of material is 50~80cm, and supporting layer is arranged below the mixed filler layer.
Moreover, the supporting layer is made of stone, the height of supporting layer is 5~10cm.
The advantage of the invention is that：
Different from pollutant to be processed needed for common rainwater biology delaying basin, the filler of this invention is to remove
Soluble organic nitrogen in water considers the comprehensive utilization effect of filler, in water penetration, water resistance, purification during choosing
Water body etc. has very high performance.Filler low cost, raw materials used to be easy to get, wherein charcoal is to the humic in rainwater
Acid has suction-operated, and can adsorb the micro quantity organic pollutant in water, and document shows that the adsorption effect of charcoal is wanted
Better than activated carbon, organic nitrogen expansion research can be adsorbed to charcoal；Charcoal has the characteristics that cheap and easy to get, has relatively good
Future in engineering applications；Zeolite has preferable adsorption effect for the organic matter of macromolecular, and organic nitrogen species are mostly big
Molecular substance, therefore zeolite also can effectively be detained DON；Manganese dioxide has absorption well to the tannin acid in rainwater
Effect；Sandy loam is most important ingredient in the present invention as the substrate of filler, it can not only reinforce the penetrating power of rainwater
And transmitance is prevented simultaneously because can effectively increase the degree of adhesion between filler containing 40% or so clay in sandy loam
Only filler is lost in；A certain amount of aluminium (iron) sludge is added it is to reconcile the property of filler, so that mixed fillers is can adapt to various
Situation, and its large specific surface area, adsorption capacity are strong.The present invention can effectively extend the rainwater residence time so that in rainwater
Soluble organic nitrogen there is sufficient time to carry out ammonification nitrification so that the nitrogen content in rainwater can reach effective place in source
Reason.
Specific implementation mode
Patent of the present invention is described in further detail with reference to embodiment.
The concentration of the DON mentioned in embodiment is calculated using following formula at present：
DON=TN-NH4+- N-NO3-- N-NO2-- N
I.e. total nitrogen concentration subtracts ammonia nitrogen, nitrate nitrogen and nitrite nitrogen concentration in a concentration of water sample of soluble organic nitrogen
Difference, and the detection of total nitrogen, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen is all made of National Standard Method：Wherein total nitrogen is cleared up for alkaline chitinase
Ultraviolet spectrophotometry；Ammonia nitrogen is reagent colorimetric method；Nitrate nitrogen is Pbenoldisulfonic Acid spectrophotometry, and nitrite nitrogen is
Spectrophotometry.
This invention is raw materials used as follows：
Charcoal：It is a kind of charcoal that carbon content is extremely abundant.It is under low-oxygen environment, by Pintsch process (<700
DEG C) timber, grass, stalk or other Wastes of Crops are carbonized.It is this to be formed by plant, wood for the purpose of fixing carbon
Charcoal is known as " charcoal " by scientists.In the present embodiment using to charcoal buy and have in the prosperous agricultural science and technology share of Yunnan prestige
The charcoal of limit company, the said firm's production is made of agricultural abandoned biomass imperfect combustion under low oxygen conditions.
Manganese dioxide：Select manganese sand filtering material, 0.1~0.4mm.
Zeolite：3~5mm grain sizes, material market are purchased.
Sandy loam：1~2.5mm grain sizes, material market are purchased.
Ferro-aluminum sludge：From Tianjin Jinnan District, salt water buys waterworks, and coagulant (polyaluminium is added in water inlet
Aluminium, bodied ferric sulfate) after by coagulating sedimentation generate sludge.
Mixed fillers are made according to the different ratios that adds in above-mentioned 5 kinds of fillers, are set below the mixed filler layer
Supporting layer is set, supporting layer is made of stone.The height of the supporting layer is 5cm.
Embodiment one
Above-mentioned three kinds of filling mixture ratios are respectively used to street rainwater treatment, the preparation method of wherein charcoal is the heat of stalk
Cracking process, filling mixture ratio (charcoal：Manganese dioxide：Zeolite：Sandy loam：Aluminium (iron) sludge), water outlet DON concentration and removal rate such as
Shown in table 1.
Removal effect of the different filling mixture ratios of table 1 to street rainwater DON
By experimental data it is found that working as filling mixture ratio charcoal：Manganese dioxide：Zeolite：Sandy loam：Aluminium (iron) sludge=3：1：
2：3：The DON removal effects of 1 streets Shi Dui rainwater are best.
Embodiment two
Above-mentioned three kinds of filling mixture ratios are respectively used to rain water on roof processing, the preparation method of wherein charcoal is rubber trees
Pyrolysis method, filling mixture ratio (charcoal：Manganese dioxide：Zeolite：Sandy loam：Aluminium (iron) sludge), water outlet DON concentration and removal
Rate is as shown in table 2.
Removal effect of the different filling mixture ratios of table 2 to rain water on roof DON
By experimental data it is found that working as filling mixture ratio charcoal：Manganese dioxide：Zeolite：Sandy loam：Aluminium (iron) sludge=2：2：
2：3：It is best to the removal effect of rain water on roof DON when 1.
Embodiment three
Above-mentioned three kinds of filling mixture ratios are respectively used to farmland rainwater treatment, the preparation method of wherein charcoal is the heat of coconut husk
Cracking process, filling mixture ratio (charcoal：Manganese dioxide：Zeolite：Sandy loam：Aluminium (iron) sludge), water outlet DON concentration and removal rate such as
Shown in table 3.
Removal effect of the different filling mixture ratios of table 3 to farmland rainwater DON
By experimental data it is found that when filling mixture ratio is 3:1:2:3:To the removal rate highest of farmland rainwater DON when 1.But it is comprehensive
Embodiment one and the street rainwater in embodiment two and rain water on roof processing capacity are closed, charcoal is still taken：Manganese dioxide：Boiling
Stone：Sandy loam：Aluminium (iron) sludge=2：2：2：3：1 filling mixture ratio.
The adjustment that preparation method is carried out according to the technical solution that the content of present invention is recorded, can prepare for handling rainwater
The biological delaying basin filler of middle soluble organic nitrogen simultaneously shows the property almost the same with above-described embodiment.Three above is implemented
Example is expounded the present invention, helps to understand patent of the present invention, but the embodiment of patent of the present invention is not by above-mentioned reality
The limitation of example is applied, it is any without departing from the changes, modifications, substitutions, combinations, simplifications done under patent principle of the present invention, it should be
The substitute mode of effect is included within the protection domain of patent of the present invention.
Claims (10)
1. a kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater, it is characterised in that：By charcoal, dioxy
Change manganese, zeolite, sandy loam, ferro-aluminum sludge composition, wherein：
The charcoal, manganese dioxide, zeolite, sandy loam and ferro-aluminum sludge volume ratio be (1~4)：(1~3)：(2~
3)：(3~4)：(1~3)；
By agricultural abandoned biomass, imperfect combustion is made the charcoal under low oxygen conditions；
The manganese dioxide is manganese sand filtering material；
The ferro-aluminum sludge is that the sludge generated by coagulating sedimentation after coagulant is added in the water inlet of waterworks, contains metallic aluminium
And ferro element.
2. a kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater according to claim 1, special
Sign is：The charcoal, manganese dioxide, zeolite, sandy loam and ferro-aluminum sludge volume ratio be (2~3)：(1~2)：(2
~2.5)：(3~3.5)：(1~2).
3. a kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater according to claim 1, special
Sign is：The charcoal is carbonized under low-oxygen environment by raw material and is obtained, and reaction temperature is 200~700 DEG C, described
Raw material is stalk, rubber trees, coconut husk, palm shell, rice straw or maize straw.
4. a kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater according to claim 1, special
Sign is：The manganese dioxide grain size is 0.1~0.4mm.
5. a kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater according to claim 1, special
Sign is：The grain size of the zeolite is 3~5mm.
6. a kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater according to claim 1, special
Sign is：The grain size of the sandy loam is 1~2.5mm.
7. a kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater according to claim 1, special
Sign is：The ferro-aluminum sludge is to be sunk by coagulation after aluminium polychloride, bodied ferric sulfate is added in water inlet in waterworks
Form sediment the sludge generated.
8. a kind of preparation method for handling the biological delaying basin filler of soluble organic nitrogen in rainwater, it is characterised in that：Choosing
It selects charcoal, manganese dioxide, zeolite, sandy loam and ferro-aluminum sludge to be uniformly mixed, wherein the charcoal, titanium dioxide
Manganese, zeolite, sandy loam and ferro-aluminum sludge volume ratio be (1~4)：(1~3)：(2~3)：(3~4)：(1~3), the life
By agricultural abandoned biomass, imperfect combustion is made object charcoal under low oxygen conditions, and the manganese dioxide is manganese sand filtering material, institute
The ferro-aluminum sludge stated is that the sludge generated by coagulating sedimentation after coagulant is added in the water inlet of waterworks, contains metallic aluminium and iron member
Element.
9. a kind of application for handling the biological delaying basin filler of soluble organic nitrogen in rainwater as described in claim 1,
It is characterized in that：The total height of mixed filler layer is 50~80cm when being used, and is set below the mixed filler layer
Supporting layer is set, builds biological delaying basin to handle soluble organic nitrogen in rainwater.
10. according to claim 9 a kind of for handling answering for the biological delaying basin filler of soluble organic nitrogen in rainwater
With, it is characterised in that：The supporting layer is made of stone, and the height of supporting layer is 5~10cm.
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| CN201710050686.9A CN108341496A (en) | 2017-01-23 | 2017-01-23 | A kind of biological delaying basin filler for handling soluble organic nitrogen in rainwater |
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Cited By (7)
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|---|---|---|---|---|
| CN109607763A (en) * | 2019-01-30 | 2019-04-12 | 陕西科技大学 | A kind of porous sustained-release carbon filler and its preparation method and application |
| CN111233070A (en) * | 2020-01-17 | 2020-06-05 | 辽宁联胜机械制造有限公司 | Water treatment filter material and preparation method thereof |
| CN111302482A (en) * | 2020-03-03 | 2020-06-19 | 北京林业大学 | Biological retention material for synchronously removing nitrogen, phosphorus and pesticides in rainwater runoff and application method |
| CN112499752A (en) * | 2020-11-09 | 2021-03-16 | 哈尔滨工业大学 | Preparation method and application of coagulated sludge-based granular filler for water treatment |
| CN114057298A (en) * | 2021-08-27 | 2022-02-18 | 南京工业大学 | Simple constructed wetland system and construction method thereof |
| CN114436361A (en) * | 2020-10-30 | 2022-05-06 | 中国环境科学研究院 | Polluted basin water and soil comprehensive treatment method |
| CN114772746A (en) * | 2022-04-06 | 2022-07-22 | 中国海洋大学 | Method for removing soluble organic nitrogen in rainwater runoff |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109607763A (en) * | 2019-01-30 | 2019-04-12 | 陕西科技大学 | A kind of porous sustained-release carbon filler and its preparation method and application |
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| CN112499752A (en) * | 2020-11-09 | 2021-03-16 | 哈尔滨工业大学 | Preparation method and application of coagulated sludge-based granular filler for water treatment |
| CN114057298A (en) * | 2021-08-27 | 2022-02-18 | 南京工业大学 | Simple constructed wetland system and construction method thereof |
| CN114772746A (en) * | 2022-04-06 | 2022-07-22 | 中国海洋大学 | Method for removing soluble organic nitrogen in rainwater runoff |
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Application publication date: 20180731 |