CN103145210A - Environment-friendly sewage nitrogen and phosphorus removal cleaning agent and preparation method thereof - Google Patents
Environment-friendly sewage nitrogen and phosphorus removal cleaning agent and preparation method thereof Download PDFInfo
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- CN103145210A CN103145210A CN2013100967937A CN201310096793A CN103145210A CN 103145210 A CN103145210 A CN 103145210A CN 2013100967937 A CN2013100967937 A CN 2013100967937A CN 201310096793 A CN201310096793 A CN 201310096793A CN 103145210 A CN103145210 A CN 103145210A
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Abstract
The invention relates to an environment-friendly sewage nitrogen and phosphorus removal cleaning agent and a preparation method thereof. The environment-friendly sewage nitrogen and phosphorus removal cleaning agent is characterized in that the cleaning agent contains 40-80 percentage by weight of biological black wood charcoal, 0-20 percentage by weight of hydrated iron oxide, 0-20 percentage by weight of attapulgite and 0-20 percentage by weight of cement on the basis of the total weigh of the cleaning agent. The cleaning agent preparation method comprises the following steps of: (1) uniformly mixing the powdery iological black wood charcoal, the hydrated iron oxide, the attapulgite, the cement and the like by weight percent; and (2) processing the mixture obtained in step (1) into granulates. The cleaning agent provided by the invention has the advantages of large specific surface, suitability for purification of multiple water bodies, reliable purification effect of sewage, low construction cost, convenience for use, environmental friendliness, wide source of raw materials, stable property of basic component materials and contribution to construction of a circular economy pattern.
Description
Technical field
The invention belongs to the sewage purification field, be specifically related to a kind of environment-friendly sewage scavenging agent with denitrogenation dephosphorizing function and preparation method thereof, this kind scavenging agent is nontoxic, has very large specific surface area, with low cost, be applicable to various water bodies and purify, wastewater purification efficiency is high, and after purifying water body, waste can be used as the manure resources utilization.
Background technology
Along with economic, social fast development, quantity of wastewater effluent raises year by year, and the water pollution problem that industry, agricultural and resident living are brought is more and more serious, and waste water control becomes hot issue at present.So far, effluent purification method can be divided into four large class, i.e. physical treatment process, method of chemical treatment, physico-chemical processes and biological treatments by its effect.Wherein, when processing centralized high-concentration waste water, utilizing the physico-chemical method purifying water body is a kind of efficient, the simple technological method that extensively adopts, but artificial dielectric material commonly used all exists separately shortcoming or deficiency at present, not that wastewater purifying efficiency is undesirable, be exactly with high costs, perhaps itself have certain pollution or later use difficulty, thereby become to a certain extent the bottleneck of sewage disposal technology development.Therefore, seek low cost, high-level efficiency, free of contamination environmentally friendly water body purifying material and will become eternal theme.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide that a kind of sewage denitrification and dephosphorization is effective, production cost is low, and can not cause purifying agent for polluted water of new environmental problem and preparation method thereof.
Environment-friendly sewage denitrogenation dephosphorizing scavenging agent provided by the invention, it is characterized in that: take described scavenging agent gross weight as benchmark, described scavenging agent comprises the biological black wood charcoal of 40～80 % by weight, the hydrous iron oxide of 0～20 % by weight, the attapulgite clay of 0～20 % by weight, the cement of 0～20 % by weight.
Preferably, described purifying agent for polluted water comprises biological black wood charcoal 60～80%, hydrous iron oxide 5～10%, attapulgite clay 5～10%, cement 10～20% by weight percentage.
For improving decontamination effect improving, according to the difference of the object of disposing of sewage, described scavenging agent also can add a small amount of assistant agent as one sees fit, and (main component is CaSO as gypsum
4), polyacrylamide etc.
Described scavenging agent is particulate state, and especially a kind of diameter is the spherical particle of 2～5mm.
The present invention provides a kind of manufacture method of above-mentioned environment-friendly sewage denitrogenation dephosphorizing scavenging agent simultaneously, and its method comprises the steps:
(1) materials such as the biological black wood charcoal of each component, hydrous iron oxide, attapulgite clay, cement are mixed with powdery;
(2) will be processed into particulate state by the mixture that above-mentioned steps (1) obtains.
Preferably, the granular mixture material of above-mentioned steps (2) is spherical particle.
Further, the diameter of described spherical particle is 2～5mm.
Add man-hour, the materials such as biological black wood charcoal, hydrous iron oxide, attapulgite clay and cement all mix with powdery, if having, the original state of the materials such as biological black wood charcoal used, hydrous iron oxide, attapulgite clay and cement is not should first it be ground into powdery powdery, then mix with other compositions.Usually the powdered granule of each composition should be able to be by the above mesh screen of 60 orders.
In scavenging agent provided by the invention, main component is biological black wood charcoal, is the mixture that utilizes a kind of non-pure carbon that fossil oil or organism such as agroforestry plant refuse etc. produce after 450 ℃～550 ℃ lower incomplete combustions.This type of material light weight, porous, stable in properties, be difficult for degraded, it is a kind of New Type of Carbon remittance product, play an important role in the biogeochemical cycle in the whole world, and adsorptivity is strong, Some Organic Pollutants is had very strong absorption and desorption, and can produce hysteresis, thereby have a extensive future.Hydrous iron oxide is mainly used in strengthening the absorption to phosphate anion in water body.Attapulgite clay has adsorption function concurrently mainly as adhesive for granulating, and the assistant agents such as cement or gypsum, polyacrylamide use mainly as binding agent, also has the purification function of strengthening specific body of water concurrently.
Environment-friendly sewage denitrogenation dephosphorizing scavenging agent product particle provided by the invention has very large specific surface area, being applicable to various water bodies purifies, wastewater purifying efficiency is reliable, cheap, easy to use, environmental friendliness, and biological black wood charcoal research heat is just risen at home, has vast potential for future development.Secondly, the sewage purification medium raw material sources of use are wide, low cost, and the essentially consist material character is stable, and environmental safety is good, can continue to serve as the fertilizer that agroforestry are produced after use, is conducive to the structure of Mode of Circular.Particularly wherein biological black wood charcoal is not only good improving of environment agent, or a kind of New Type of Carbon converges product, thereby scavenging agent product introduction of the present invention market, will show the superior market characteristics.In addition, according to technical solution of the present invention, broad variety sewage was carried out cleaning test, decontamination effect improving is more satisfactory, pollutants removal rate: CODcr 〉=50%, BOD 〉=85%, SS 〉=90%, NH
3-N 〉=20%, TN 〉=53%, TP 〉=85%.
Embodiment
For making your auditor and the public can further understand feature of the present invention and beneficial effect thereof, the spy is described in detail as follows the specific embodiment of the present invention with embodiment:
Environment-friendly sewage denitrogenation dephosphorizing scavenging agent provided by the invention comprises the biological black wood charcoal of 40～80 % by weight, the hydrous iron oxide of 0～20 % by weight and the attapulgite clay of 0～20 % by weight, the cement of 0～20 % by weight take described scavenging agent gross weight as benchmark.According to the difference of processing object, wherein can select as one sees fit to add the assistant agents such as a small amount of gypsum, polyacrylamide, this kind scavenging agent is particulate state, and especially a kind of diameter is the spherical particle of 2～5mm.
The manufacture method of above-mentioned environment-friendly sewage denitrogenation dephosphorizing scavenging agent comprises the steps:
(1) materials such as the biological black wood charcoal of each component, hydrous iron oxide, attapulgite clay, cement are mixed with powdery.Each composition is mixed the specific surface area that can improve artificial dielectric, strengthen wastewater purifying efficiency.
(2) will be processed into particulate state by the mixture that above-mentioned steps (1) obtains.Especially preferably be processed into the spherical particle that diameter is 2～5mm, can build so abundant heterogeneous oxidation-reduction little territory environment, be conducive to the purification of Water element, but also balance water body decontamination effect improving and the residence time Relations Among of sewage in medium.
Add man-hour, the materials such as biological black wood charcoal, hydrous iron oxide, attapulgite clay and cement all mix with powdery, if having, the original state of the materials such as biological black wood charcoal used, hydrous iron oxide, attapulgite clay and cement is not should first it be ground into powdery powdery, then mix with other compositions.Usually the powdered granule of each composition should be able to be by the above mesh screen of 60 orders.
Embodiment one: the present embodiment scavenging agent comparatively is fit to nitrogen (N), phosphorus (P) pollutes lighter water body and uses.
1. take the scavenging agent gross weight as benchmark, the present embodiment scavenging agent comprises the biological black wood charcoal of 80 % by weight, the cement of 20 % by weight.
2. preparation method:
Mix after biological black wood charcoal, the cement flour of above-mentioned each component is broken into powdery, then be processed into the spherical small-particle that diameter is 2～5mm.
Embodiment two: the present embodiment scavenging agent comparatively is fit to nitrogen (N), phosphorus (P) pollutes relatively heavier water body and uses.
1. take the scavenging agent gross weight as benchmark, the present embodiment scavenging agent comprises one or more in the assistant agents such as the gypsum of the cement of attapulgite clay, 15 % by weight of hydrous iron oxide, 20 % by weight of biological black wood charcoal, 20 % by weight of 40 % by weight and 5 % by weight or polyacrylamide.
2. preparation method:
Mix after the assistant agents such as biological black wood charcoal, hydrous iron oxide, attapulgite clay, cement and the gypsum of above-mentioned each component, polyacrylamide are ground into powdery, then be processed into the spherical small-particle of particulate state 2～5mm.
Embodiment three: the present embodiment scavenging agent comparatively is fit to nitrogen (N) and pollutes relatively heavier water body use.
1. take the scavenging agent gross weight as benchmark, the present embodiment scavenging agent comprises the biological black wood charcoal of 60 % by weight, the hydrous iron oxide of 5 % by weight, the attapulgite clay of 20 % by weight, the cement of 10 % by weight, and the polyacrylamide of 5 % by weight.
2. preparation method:
Mix after biological black wood charcoal, hydrous iron oxide, attapulgite clay and the cement of above-mentioned each component, polyacrylamide etc. are ground into powdery, then be processed into the spherical small-particle of particulate state 2～5mm.
The below concrete application in sewage disposal by scavenging agent of the present invention is further described beneficial effect of the present invention.According to sewage quantity and concentration of wastewater problem, the consumption of this scavenging agent changes greatly, if need upgrade scavenging agent when finding to purify the water outlet deleterious when monitoring in general practice.Usually the consumption of scavenging agent of the present invention is that the ratio of scavenging agent and sewage is between 1:20～50.
Application examples one: (in water body, N, P pollute all lighter)
The former water principal pollutant background value of certain city domestic sewage is: CODcr, BOD
5, SS, NH
3-N, TN, TP are respectively 39.81mg/L, 7.66mg/L, 8.7mg/L, 2.47mg/L, 20.81mg/L, 1.38mg/L.Get the scavenging agent product of the 100 gram embodiment of the present invention one, be poured in the plastic tank of 5 liters of sewage (scavenging agent: sewage=1:50), stirred 5～10 minutes every 3～4 hours during this time, after standing 12 o'clock, mixed solution is shaken up, and slowly pour in a uncovered cloth bag and filter, cloth bag below placement one open drum is accepted filtrate.Repeatedly after filter 23 time, measure the corresponding desired value of filtrate in open drum, CODcr, BOD
5, SS, NH
3-N, TN, TP are respectively 16.53mg/L, 0.16mg/L, 0.5mg/L, 1.84mg/L, 6.32mg/L, 0.03mg/L.As calculated, CODcr, BOD
5, SS, NH
3The clearance of-N, TN, TP is respectively: 58.5%, 97.9%, 94.35%, 25.5%, 69.6%, 97.8%.
Application examples two: (N, P pollute all heavier water bodys)
The former water principal pollutant background value of certain grey swan sewage of farm is: CODcr, BOD
5, SS, NH
3-N, TN, TP are respectively 8521mg/L, 2735mg/L, 3116mg/L, 306mg/L, 347mg/L, 52mg/L.Get the scavenging agent product of the 1kg embodiment of the present invention two, be poured into and one be equipped with in the large plastic containers of 20 liters of sewage (scavenging agent: sewage=1:50), during stirred 5～10 minutes every 3～4 hours.After standing 12 hours, mixed solution is shaken up, and slowly pour in a uncovered cloth bag and filter, cloth bag below placement one open drum is accepted filtrate.Repeatedly after filter 23 time, measure the corresponding desired value of filtrate in open drum, CODcr, BOD
5, SS, NH
3-N, TN, TP are respectively 1278mg/L, 219mg/L, 312mg/L, 52mg/L, 69mg/L, 6.8mg/L.As calculated, CODcr, BOD
5, SS, NH
3The clearance of-N, TN, TP is respectively: 85%, 92%, 90%, 83%, 80%, 87%.
Application examples three: (N heavy contamination water body)
The principal pollutant background value of certain cultivation piggery wastewater is: CODcr, BOD
5, SS, NH
3-N, TN, TP are respectively 16020.56mg/L, 4508.26mg/L, 5300.74mg/L, 1200.17mg/L, 1400.25mg/L, 5.62mg/L.Get the scavenging agent product of the 1kg embodiment of the present invention three, be placed in the large plastic tank of 20 liters of sewage (scavenging agent: sewage=1:20), during stirred 5～10 minutes every 3～4 hours.After standing 12 hours, mixed solution is shaken up, and slowly pour in a uncovered cloth bag and filter, cloth bag below placement one open drum is accepted filtrate.Repeatedly after filter 23 time, measure the corresponding desired value of measuring again filtrate in open drum, CODcr, BOD
5, SS, NH
3-N, TN, TP are respectively 2723.51mg/L, 495.91mg/L, 477.07mg/L, 180.03mg/L, 252.05mg/L, 0.22mg/L.As calculated, CODcr, BOD
5, SS, NH
3The clearance of-N, TN, TP is respectively: 83%, 89%, 91%, 85%, 82%, 96%.
Above a kind of environment-friendly sewage denitrogenation dephosphorizing scavenging agent that the embodiment of the present invention is provided and preparation method thereof is described in detail; in sum; this description should not be construed as limitation of the present invention; for those of ordinary skill in the art; according to the thought of technical solution of the present invention, any change of having done in embodiment and range of application or be equal within replacement all should be included in protection scope of the present invention.
Claims (7)
1. environment-friendly sewage denitrogenation dephosphorizing scavenging agent, it is characterized in that: take described scavenging agent gross weight as benchmark, described scavenging agent comprises the biological black wood charcoal of 40～80 % by weight, the hydrous iron oxide of 0～20 % by weight, the attapulgite clay of 0～20 % by weight, the cement of 0～20 % by weight.
2. environment-friendly sewage denitrogenation dephosphorizing scavenging agent according to claim 1, it is characterized in that: take described scavenging agent gross weight as benchmark, described scavenging agent comprises the biological black wood charcoal of 60～80% weight, the hydrous iron oxide of 5～10% weight, the attapulgite clay of 5～10% weight, the cement of 10～20% weight.
3. environment-friendly sewage denitrogenation dephosphorizing scavenging agent according to claim 1, it is characterized in that: described scavenging agent is particulate state.
4. environment-friendly sewage denitrogenation dephosphorizing scavenging agent according to claim 3, it is characterized in that: described scavenging agent is the spherical particle of diameter 2～5mm.
5. the manufacture method of an environment-friendly sewage denitrogenation dephosphorizing scavenging agent claimed in claim 1, it is characterized in that: its method comprises the steps:
(1) materials such as the biological black wood charcoal of each component, hydrous iron oxide, attapulgite clay, cement are mixed with powdery;
(2) will be processed into particulate state by the mixture that above-mentioned steps (1) obtains.
6. the manufacture method of environment-friendly sewage denitrogenation dephosphorizing scavenging agent according to claim 5, it is characterized in that: the described granular mixture material of above-mentioned steps (2) is spherical particle.
7. the manufacture method of environment-friendly sewage denitrogenation dephosphorizing scavenging agent according to claim 6, it is characterized in that: the diameter of described spherical particle is 2～5mm.
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| CN107115839A (en) * | 2017-06-21 | 2017-09-01 | 合肥帧讯低温科技有限公司 | It is a kind of for cleanser of purifier and preparation method thereof |
| CN108889268A (en) * | 2018-07-23 | 2018-11-27 | 南京信息工程大学 | A kind of application of modified abandoned cement block in removal rainwater in terms of phosphorus |
| CN109231567A (en) * | 2018-10-25 | 2019-01-18 | 陈志� | A kind of chemical plant sewage treatment process |
| DE102018106973A1 (en) | 2018-03-23 | 2019-09-26 | Hanseatische Umwelt Cam Gmbh | Process for producing a feed substance and feed substance produced by this process |
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| CN110721688A (en) * | 2019-11-15 | 2020-01-24 | 大连理工大学 | Preparation of soluble black carbon-iron oxide coprecipitation Fenton-like catalyst and application of catalyst in catalytic degradation of norfloxacin |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| DE102018106973A1 (en) | 2018-03-23 | 2019-09-26 | Hanseatische Umwelt Cam Gmbh | Process for producing a feed substance and feed substance produced by this process |
| CN108889268A (en) * | 2018-07-23 | 2018-11-27 | 南京信息工程大学 | A kind of application of modified abandoned cement block in removal rainwater in terms of phosphorus |
| CN109231567A (en) * | 2018-10-25 | 2019-01-18 | 陈志� | A kind of chemical plant sewage treatment process |
| CN110642338A (en) * | 2019-10-30 | 2020-01-03 | 深圳杜尔环境科技有限公司 | Sewage nitrogen and phosphorus removal filler and preparation method thereof |
| CN110721688A (en) * | 2019-11-15 | 2020-01-24 | 大连理工大学 | Preparation of soluble black carbon-iron oxide coprecipitation Fenton-like catalyst and application of catalyst in catalytic degradation of norfloxacin |
| CN110721688B (en) * | 2019-11-15 | 2021-05-18 | 大连理工大学 | Preparation of soluble black carbon-iron oxide coprecipitation Fenton-like catalyst and application of catalyst in catalytic degradation of norfloxacin |
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Application publication date: 20130612 |