CN107522286A - A kind of tail water processing method based on sulphur/oyster shell - Google Patents
A kind of tail water processing method based on sulphur/oyster shell Download PDFInfo
- Publication number
- CN107522286A CN107522286A CN201710962682.8A CN201710962682A CN107522286A CN 107522286 A CN107522286 A CN 107522286A CN 201710962682 A CN201710962682 A CN 201710962682A CN 107522286 A CN107522286 A CN 107522286A
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- China
- Prior art keywords
- oyster shell
- tail water
- sulphur
- discarded
- processing method
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Classifications
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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
- C02F3/28—Anaerobic digestion processes
-
- 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
- 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
Abstract
A kind of tail water processing method based on sulphur/oyster shell, the substitute that discarded oyster shell is used as to lime stone is used in tail water handling process, and in reactor, the mass ratio of sulfur granules and oyster shell is 1：0.7~1:0.8, and the particle diameter of sulfur granules is 1 mm ~ 8mm；It is 1mm ~ 5mm that the discarded oyster shell is crushed to particle diameter by reducing mechanism.Discarded oyster shell serves not only as the habitat of microorganism, and containing abundant calcium carbonate, the Thiobacillus for sulphur autotrophic type provides carbon source；Separately containing a variety of inorganic microelements such as sodium, barium, copper, iron, magnesium, manganese, nickel, strontiums, nutrition is provided for microbe survival；The physique of oyster shell is cuticula, prismatic layer, nacre composition, and major part is prismatic layer, bladed structure, containing a large amount of 2 ~ 10um micropores, with stronger adsorption capacity, while also adhere to organic carbon source on oyster shell, therefore the function of autotrophy/heterotrophism collaboration denitrogenation can be realized.Technique in the present invention can turn waste into wealth, and carry out deep phosphorous removal denitrogenation to tail water, cost is low.
Description
Technical field
The invention belongs to sewage treatment area, and in particular to a kind of tail water processing method based on sulphur/oyster shell.
Background technology
As the fast development of China's economy and the nutrient such as quickening, a large amount of nitrogen phosphorus of urbanization process enter water body
In, cause the eutrophication of water body, in order to further control water pollution, input of the China in sewage disposal is also increasingly
Greatly.
Meanwhile in order to improve the quality of water environment of receiving water body, tail water in sewage treatment plant urgently advanced treating, especially
The advanced treating to wherein nitrogen and phosphorus, current processing method be mainly based upon denitrification deep-bed filter carrying out, it is necessary to
Carbon source is added, increases cost；Compared to heterotrophism denitrogenation, denitrogenation is with the obvious advantage due to that need not add carbon source.Sulphur autotrophic denitrification is
Refer to the Thiobacillus of some obligate inorganic chemosynthetic autotrophs, thiosulfate is utilized in the environment of anaerobic or anoxic（S2O3 2-）、
Elemental sulfur（S）, sulfide（S2-）It is electron acceptor by nitrate nitrogen using nitrate Deng for electron donor（NO3-）It is reduced to nitrogen（N2）
Sulphur is oxidized to the autotrophic denitrification process of sulfate simultaneously.The combination for studying more mostly sulphur and lime stone at present is anti-
Should.
Oyster is with its delicious flavour, nutritious and be loved by consumers in shellfish by nest RT-PCR, but after consuming
A large amount of oyster shells abandon as rubbish, have not only polluted environment but also have caused the waste of resource.Oyster shell mineral matter is based on calcium constituent, calcium
Content is 40%, if can be substituted lime stone and be studied for tail water processing, the present invention on this direction.
The content of the invention
The deficiency of the prior art for more than, the invention provides a kind of tail water processing side based on sulphur/oyster shell
Method, cost is low, turns waste into wealth, denitrogenation dephosphorization significant effect.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals.
A kind of tail water processing method based on sulphur/oyster shell, the substitute that discarded oyster shell is used as to lime stone are used
In tail water handling process, in reactor, the mass ratio of sulfur granules and oyster shell is 1：0.7~1:0.8, and the particle diameter of sulfur granules
For 1 mm ~ 8mm.
Preferably, it is 1mm ~ 5mm that the discarded oyster shell is crushed to particle diameter by reducing mechanism.
Discarded oyster shell serves not only as the habitat of microorganism, and containing abundant calcium carbonate, for the sulphur bar of sulphur autotrophic type
Pseudomonas provides carbon source；Separately containing a variety of inorganic microelements such as sodium, barium, copper, iron, magnesium, manganese, nickel, strontiums, provided for microbe survival
Nutrition；The physique of oyster shell is cuticula, prismatic layer, nacre composition, and major part is prismatic layer, bladed structure,
Containing a large amount of 2 ~ 10um micropores, there is stronger adsorption capacity, while also adhere to organic carbon source on oyster shell, therefore can realize certainly
The function of foster/heterotrophism collaboration denitrogenation.
Compared with prior art, the technique in the present invention can turn waste into wealth, using sulphur and discarded oyster shell as filler,
Deep phosphorous removal denitrogenation is carried out to tail water, cost is low.
Brief description of the drawings
Fig. 1 is total nitrogen removal effect figure.
Fig. 2 is total phosphorus removal effect figure.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
In the present invention, a kind of tail water processing method based on sulphur/oyster shell, feature is filtered in existing denitrification depth bed
In the tail water handling process in pond, the substitute that discarded oyster shell is used as to lime stone is used in tail water handling process, reactor
In, the mass ratio of sulfur granules and oyster shell is 1：0.7~1:0.8, and the particle diameter of sulfur granules is 1 mm ~ 8mm.It is described discarded male
It is 1mm ~ 5mm that oyster shell is crushed to particle diameter by reducing mechanism.
In method in the present invention, other processing steps being not directed to and parameter are all handling process ginseng conventional in industry
Number.
In the present invention, using discarded oyster shell as inorganic carbon source, based on calcium constituent, calcium content is oyster shell mineral matter
40% or so, separately there are a variety of inorganic elements such as sodium, barium, copper, iron, magnesium, manganese, nickel, strontium.The physique of oyster shell be cuticula,
Prismatic layer, nacre composition, major part is prismatic layer, bladed structure, containing a large amount of 2 ~ 10um micropores, has stronger absorption
Ability, utilized using oyster shell as the carbon source of sulphur autotrophic denitrification, ring caused by due to abandoning oyster shell can not only be mitigated
Border is polluted, but also can be turned waste into wealth for sewage disposal.
Meanwhile a small amount of organic matter is adsorbed with discarded oyster shell, therefore autotrophy/heterotrophism collaboration denitrogenation can be realized
Function, further enhance denitrification effect.
See that Fig. 1, Fig. 1 show the removal effect of the total nitrogen after system run all right, total nitrogen average removal rate reaches 93%,
And processing system of the lime stone as inorganic carbon source is used, 80% or so, contrast effect significantly carries its total nitrogen average removal rate
Rise；See that Fig. 2, Fig. 2 show the removal effect of stable rear total phosphorus, total phosphorus average removal rate reaches 33%, and uses lime stone
As the processing system of inorganic carbon source, 26% or so, contrast effect is obviously improved its total phosphorus average removal rate.
As can be seen here, in the present invention, the lime stone used in tradition is substituted using discarded oyster shell as tail water processing
Method, not only turn waste into wealth, saved cost, and significantly improve nitrogen removal rate and total tp removal rate, effect shows
Write, economic value is high.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
It is defined, any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (2)
1. a kind of tail water processing method based on sulphur/oyster shell, it is characterised in that discarded oyster shell is used as lime stone
Substitute is used in tail water handling process, and in reactor, the mass ratio of sulfur granules and oyster shell is 1：0.7~1:0.8, and sulphur
The particle diameter of grain is 1 mm ~ 8mm.
2. a kind of tail water processing method based on sulphur/oyster shell according to claim 1, it is characterised in that described useless
It is 1mm ~ 5mm that the oyster shell abandoned is crushed to particle diameter by reducing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962682.8A CN107522286A (en) | 2017-10-17 | 2017-10-17 | A kind of tail water processing method based on sulphur/oyster shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962682.8A CN107522286A (en) | 2017-10-17 | 2017-10-17 | A kind of tail water processing method based on sulphur/oyster shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107522286A true CN107522286A (en) | 2017-12-29 |
Family
ID=60685279
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| CN201710962682.8A Pending CN107522286A (en) | 2017-10-17 | 2017-10-17 | A kind of tail water processing method based on sulphur/oyster shell |
Country Status (1)
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| CN (1) | CN107522286A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340846A (en) * | 2020-11-19 | 2021-02-09 | 海天水务集团股份公司 | Deep denitrification method for municipal sewage |
| CN112340845A (en) * | 2020-11-19 | 2021-02-09 | 海天水务集团股份公司 | Advanced nitrogen and phosphorus removal process for town sewage |
| CN114195259A (en) * | 2021-12-06 | 2022-03-18 | 清华大学 | Low-carbon nitrate wastewater efficient purification device system based on mixed matrix and purification treatment method |
| CN114605726A (en) * | 2022-03-15 | 2022-06-10 | 四川达沃斯生态环保科技股份有限公司 | Modified biological suspended filler and preparation method thereof |
| CN114804523A (en) * | 2022-04-25 | 2022-07-29 | 华南理工大学 | Device and method for culturing thiobacillus dephosphorization and phosphorus resource recovery based on composite filler |
| CN115636507A (en) * | 2022-11-23 | 2023-01-24 | 山东建筑大学 | Constructed wetland slow-release filler based on sulfur autotrophic denitrification |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340846A (en) * | 2020-11-19 | 2021-02-09 | 海天水务集团股份公司 | Deep denitrification method for municipal sewage |
| CN112340845A (en) * | 2020-11-19 | 2021-02-09 | 海天水务集团股份公司 | Advanced nitrogen and phosphorus removal process for town sewage |
| CN112340846B (en) * | 2020-11-19 | 2023-06-13 | 海天水务集团股份公司 | Deep denitrification method for urban sewage |
| CN112340845B (en) * | 2020-11-19 | 2023-06-13 | 海天水务集团股份公司 | Advanced denitrification and dephosphorization process for town sewage |
| CN114195259A (en) * | 2021-12-06 | 2022-03-18 | 清华大学 | Low-carbon nitrate wastewater efficient purification device system based on mixed matrix and purification treatment method |
| CN114605726A (en) * | 2022-03-15 | 2022-06-10 | 四川达沃斯生态环保科技股份有限公司 | Modified biological suspended filler and preparation method thereof |
| CN114804523A (en) * | 2022-04-25 | 2022-07-29 | 华南理工大学 | Device and method for culturing thiobacillus dephosphorization and phosphorus resource recovery based on composite filler |
| CN115636507A (en) * | 2022-11-23 | 2023-01-24 | 山东建筑大学 | Constructed wetland slow-release filler based on sulfur autotrophic denitrification |
| CN115636507B (en) * | 2022-11-23 | 2023-08-11 | 山东建筑大学 | Constructed wetland slow release filler based on sulfur autotrophic denitrification |
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Application publication date: 20171229 |