CN108975835A - A kind of preparation method and applications of the composite adsorption stuffing containing slow release carbon source - Google Patents
A kind of preparation method and applications of the composite adsorption stuffing containing slow release carbon source Download PDFInfo
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- CN108975835A CN108975835A CN201810942764.0A CN201810942764A CN108975835A CN 108975835 A CN108975835 A CN 108975835A CN 201810942764 A CN201810942764 A CN 201810942764A CN 108975835 A CN108975835 A CN 108975835A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
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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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
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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
- C02F3/2806—Anaerobic processes using solid supports for microorganisms
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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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
-
- 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
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to the preparation method and applications of the composite adsorption stuffing containing slow release carbon source, it is effectively improved biochemical poor, the carbon source deficiency of water body, microorganism can not adhere to, release the low problem of carbon less effective, denitrification efficiency, method is, by weight percent meter: cement 28%~35%, flyash 14%~20%, zeolite powder 10%~25%, diatomite 20%~25%, bentonite 8%~12% and carbon source 3% make solid material, pureed is added water and stirred into, is filled in mold；Under 15-25 DEG C of temperature, humidity 50%~60%, demould within 3~5 days, continue maintenance 7 days, dry to obtain the final product；Abundant raw material of the present invention, preparation method is simple, it is at low cost, effect is good, it is applied effectively as biological denitrification carbon source, microbial carrier, water purification adsorption stuffing and removes polluted by nitrogen in ecology filter dam, ecological river bed, artificial swamp, purposes is wide, can be used for low ratio of carbon to ammonium surface water, city river micropollutant water, artificial swamp etc., energy conservation and environmental protection.
Description
Technical field
The present invention relates to environmental protection, in particular to the preparation method of a kind of composite adsorption stuffing containing slow release carbon source and its answer
With.
Background technique
Water is Source of life, is played the role of in nature very important.With the sustainable development of social economy, water body
Pollution situation is more acute as compared with the past, although at present under the supervision and management energetically of national relevant policies, COD and
The pollution situation of ammonia nitrogen greatly improves, but the pollution level of the nutritive salt such as nitrogen, phosphorus is still high.Northern China water resource
More deficient, urban river water relies on sewage plant tail water more, water body biodegradability is poor, carbon-nitrogen ratio is low, microorganism denitrification can
It is increasingly prominent using the problems such as carbon source is insufficient, polluted by nitrogen is serious.
The removal of polluted by nitrogen relies primarily on the approach such as plant absorption and microbial degradation in urban river water body, wherein micro- life
The nitration denitrification functioning efficiency of object is higher, is main denitrogenation mode, but the carbon source utilized usually in river for microorganism is deficient
Weary, denitrification efficiency is lower, and removal nitrogen effect is not obvious, therefore adds the denitrogenation hand that external carbon source necessitates to water body
Section.
Nowadays, more and more scholars, technical staff recognize this outstanding problem of carbon source deficiency in water body, frequently with
Add methanol, ethyl alcohol, acetic acid of the fluid organic material as carbon source, such as easily biological-degradable；But slowly recognize traditional liquid carbon
There are dosages to be difficult to control in source, it is short, at high cost to release the carbon period, even toxic etc. drawbacks, therefore some scholars turn to phase therewith
Pair solid carbon source, such as cellulose, biodegradable polymers.Although solid carbon source compare liquid carbon source have release carbon can
Control, it is low in cost the advantages that, but due in water body microbe density it is low, more dispersed, the attachment space that do not fix, therefore efficiency
Also not high enough.Therefore, carbon source is from a wealth of sources, it is long to release the carbon period while having for the water-purifying material of microorganism attachment very big
The market demand.Currently, have some researchs achieves good purifying water effect, but most material preparation process in practical problem
It is cumbersome, expend time, man power and material, higher cost, and more be only limitted to application in terms of underground water, it is ecological river bed,
Application in the ecology filter surface water bodies such as dam and artificial swamp is rarely reported.
Summary of the invention
For above situation, overcome the defect of the prior art, the purpose of the present invention is just to provide a kind of containing slow release carbon source
The preparation method and applications of composite adsorption stuffing, can be effectively improved the biochemical poor, carbon source of water body is insufficient, microorganism can not be attached
, release the low problem of carbon less effective, denitrification efficiency.
The technical solution that the present invention solves is, a kind of preparation method of the composite adsorption stuffing containing slow release carbon source and its answers
With preparation method includes the following steps:
(1) ingredient:
Its ingredient is by weight percent meter: cement 28%~35%, flyash 14%~20%, zeolite powder 10%~25%, diatom
Soil 20%~25%, bentonite 8%~12% and carbon source 3% makees solid material and water is made, wherein the weight ratio of solid material and water is
1 ︰ 0.5 ~ 0.65；
The cement is portland slag cement, strength grade 32.5；
The flyash is second class powered coal ash, and fineness is 43 microns, and density is 2.4 g/cm3；
The carbon source is corncob, and partial size is between 80~120 mesh；
(2) molding:
It is matched, cement, flyash, zeolite powder, diatomite, bentonite and carbon source is uniformly mixed into solid according to above-mentioned raw materials
Body raw material is added 0.5 ~ 0.65 times of solid material weight of water, stirs into uniform pureed, be then uniformly filled in mold；
(3) demoulding maintenance:
By the pureed raw material surfacing in mold, in the environment of 15-25 DEG C of temperature, humidity 50%~60%, taken off after 3~5 days
Mould continues maintenance 7 days, sprinkles water daily during maintenance 2~3 times, dries up to composite adsorption stuffing；
The mold shape is cube or spherical shape, and when for cube, a side length of cube is 5-100mm, when for
When spherical, diameter 5-100mm can also change shape, size according to practical use；
The composite adsorption stuffing filters dam, life in ecology as biological denitrification carbon source, microbial carrier, water purification adsorption stuffing
The application of polluted by nitrogen is removed in state riverbed, artificial swamp.
Abundant raw material of the present invention, preparation method is simple, at low cost, and effect is good, effectively as biological denitrification carbon source, micro- life
Object attachment carrier, water purification adsorption stuffing, which are applied, removes polluted by nitrogen in ecology filter dam, ecological river bed, artificial swamp, and purposes is wide, can
For low ratio of carbon to ammonium surface water, city river micropollutant water, artificial swamp etc., energy conservation and environmental protection, economic and social benefit is huge.
Detailed description of the invention
Fig. 1 is that composite adsorption stuffing of the present invention releases carbon variation diagram.
Specific embodiment
It elaborates with reference to embodiments to a specific embodiment of the invention.
The present invention in specific implementation, can be provided by following embodiment.
Embodiment 1
The present invention is in specific implementation, comprising the following steps:
(1) ingredient:
Its ingredient is by weight percent meter: cement 28%, flyash 15%, zeolite powder 19%, diatomite 24%, bentonite 11%
Make solid material with carbon source 3% and water is made, wherein the weight ratio of solid material and water is 1 ︰ 0.5；
(2) molding:
It is matched, cement, flyash, zeolite powder, diatomite, bentonite and carbon source is uniformly mixed into solid according to above-mentioned raw materials
Body raw material is added 0.5 times of solid material weight of water, stirs into uniform pureed, be then uniformly filled in mold；
(3) demoulding maintenance:
By the pureed raw material surfacing in mold, in the environment of 15-25 DEG C of temperature, humidity 50%~60%, taken off after 3~5 days
Mould continues maintenance 7 days, sprinkles water daily during maintenance 2~3 times, dries up to composite adsorption stuffing；
Embodiment 2
In specific implementation, the ingredient is by weight percent meter to the present invention: cement 31%, flyash 15%, zeolite powder
16%, diatomite 23%, bentonite 12% and carbon source 3% makees solid material and water is made, wherein the weight ratio of solid material and water is
1 ︰ 0.53.
Embodiment 3
In specific implementation, ingredient is by weight percent meter to the present invention: cement 32%, flyash 18%, zeolite powder 12%, silicon
Diatomaceous earth 25%, bentonite 10% and carbon source 3% makees solid material and water is made, wherein the weight ratio of solid material and water is 1 ︰ 0.56.
Embodiment 4
In specific implementation, ingredient is by weight percent meter to the present invention: cement 34%, flyash 17%, zeolite powder 13%, silicon
Diatomaceous earth 23%, bentonite 10% and carbon source 3% makees solid material and water is made, wherein the weight ratio of solid material and water is 1 ︰ 0.61.
Embodiment 5
In specific implementation, ingredient is by weight percent meter to the present invention: cement 35%, flyash 16%, zeolite powder 11%, silicon
Diatomaceous earth 24%, bentonite 11% and carbon source 3% makees solid material and water is made, wherein the weight ratio of solid material and water is 1 ︰ 0.65.
Embodiment 6
In specific implementation, ingredient is by weight percent meter to the present invention: cement 35%, flyash 19%, zeolite powder 11%, silicon
Diatomaceous earth 23%, bentonite 9% and carbon source 3% makees solid material and water is made, wherein the weight ratio of solid material and water is 1 ︰ 0.65.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement etc., should all be included in the protection scope of the present invention.
After tested, the composite adsorption stuffing intensity of test block after the completion of conserving reaches nearly 200 N, and intensity is with test block body
Long-pending increase and increase, even up to thousands of oxen.Composite adsorption stuffing is invested in test reactor, volume dosed is reaction
The one third of body product, setting generic media particle are control group, are intake as tap water.By attached drawing 1 it is found that in hydraulic retention
Time is 10h, and under conditions of temperature is 25 DEG C, composite adsorption stuffing slowly releases carbon source, and TOC of yielding water is 48~65 mg/L,
The saturation TOC concentration that unit mass material discharges in the solution is 135 mg (gL)-1, release carbon period lasts to half a year,
Test block volume is bigger, and it is longer to release the carbon period；It can be seen that there is the composite adsorption stuffing carbon source release slowly may be used compared to control group
It controls, release carbon time long, durable and recycling is convenient not will cause the advantages such as secondary pollution.In addition, after the completion of releasing carbon, this hair
Composite adsorption stuffing in bright can be used as microbe carrier, provide adequate space for microorganism attachment.
Containing the composite adsorption stuffing of slow release carbon source in the present invention, raw material are cheap, are easy to get, and mostly agriculture and industry waste
(such as flyash, corncob), improves waste utilization efficiency, and economic benefit is huge；Corncob carbon source included in material
The slow release under the protection of inorganic binder effectively provides carbon source for water body, improves microorganism denitrification ability, improves
Effects of purification quality；Preparation method is easy, and time saving and energy saving, energy saving and intensity is high, and service life is long, the regular unification of test block,
It is easy to promote and apply in the river system repair technologies such as ecology filter dam, ecological river bed, artificial swamp.
The invention has the following advantages: using cement, flyash, zeolite powder as main cementitious material, raw material
It is from a wealth of sources, substantially reduce cost of manufacture, economic benefit significantly improves, and flyash be plant wastes, improve waste return
Receive utility value；The present invention has strong hygroscopicity and permeability using diatomite, bentonite, can effectively change in mixed raw material
The workability of kind mixture, improves the intensity of material；Since the present invention is to make in a mold, sample molding is regular, can batch
Production, avoiding the traditional approach such as granulation needs labor intensive, time-consuming, power consumption and the drawbacks such as molding size of sample disunity；Using
Composite adsorption stuffing prepared by the present invention can slow release carbon source, extension release the carbon period, provide sufficient carbon source for microorganism, enhancing
Denitrification improves water body denitrification efficiency；The present invention uses cement, flyash, zeolite powder etc. for inorganic bond material, greatly increases
The strong strength of materials has stronger adaptability and impact resistance to the variation of water body environment, provides for microorganism fixed reliable
Apposition growth space；Composite adsorption stuffing prepared by the present invention is widely used, can be used for low ratio of carbon to ammonium surface water, city river
Micropollutant water, artificial swamp etc., economic and social benefit is huge.
Claims (8)
1. a kind of preparation method of the composite adsorption stuffing containing slow release carbon source, which comprises the following steps:
(1) ingredient:
Its ingredient is by weight percent meter: cement 28%~35%, flyash 14%~20%, zeolite powder 10%~25%, diatom
Soil 20%~25%, bentonite 8%~12% and carbon source 3% makees solid material and water is made, wherein the weight ratio of solid material and water is
1 ︰ 0.50 ~ 0.65；
The cement is portland slag cement, strength grade 32.5；
The flyash is second class powered coal ash, and fineness is 43 microns, and density is 2.4 g/cm3；
The carbon source is corncob, and partial size is between 80~120 mesh；
(2) molding:
It is matched, cement, flyash, zeolite powder, diatomite, bentonite and carbon source is uniformly mixed into solid according to above-mentioned raw materials
Body raw material is added 0.5 ~ 0.65 times of solid material weight of water, stirs into uniform pureed, be then uniformly filled in mold；
(3) demoulding maintenance:
By the pureed raw material surfacing in mold, in the environment of 15-25 DEG C of temperature, humidity 50%~60%, taken off after 3~5 days
Mould continues maintenance 7 days, sprinkles water daily during maintenance 2~3 times, dries up to composite adsorption stuffing.
2. the preparation method of the composite adsorption stuffing according to claim 1 containing slow release carbon source, which is characterized in that described
Mold is cube or spherical shape, and a side length of cube is 5-100mm, and spherical diameter is 5-100mm.
3. the preparation method of the composite adsorption stuffing according to claim 1 containing slow release carbon source, which is characterized in that including with
Lower step:
(1) ingredient:
Its ingredient is by weight percent meter: cement 28%, flyash 15%, zeolite powder 19%, diatomite 24%, bentonite 11%
Make solid material with carbon source 3% and water is made, wherein the weight ratio of solid material and water is 1 ︰ 0.5；
(2) molding:
It is matched, cement, flyash, zeolite powder, diatomite, bentonite and carbon source is uniformly mixed into solid according to above-mentioned raw materials
Body raw material is added 0.5 times of solid material weight of water, stirs into uniform pureed, be then uniformly filled in mold；
(3) demoulding maintenance:
By the pureed raw material surfacing in mold, in the environment of 15-25 DEG C of temperature, humidity 50%~60%, taken off after 3~5 days
Mould continues maintenance 7 days, sprinkles water daily during maintenance 2~3 times, dries up to composite adsorption stuffing.
4. the preparation method of the composite adsorption stuffing according to claim 1 containing slow release carbon source, which is characterized in that described
Ingredient is by weight percent meter: cement 31%, flyash 15%, zeolite powder 16%, diatomite 23%, bentonite 12% and carbon source
3% makees solid material and water is made, and wherein the weight ratio of solid material and water is 1 ︰ 0.53.
5. the preparation method of the composite adsorption stuffing according to claim 1 containing slow release carbon source, which is characterized in that described
Ingredient is by weight percent meter: cement 32%, flyash 18%, zeolite powder 12%, diatomite 25%, bentonite 10% and carbon source
3% makees solid material and water is made, and wherein the weight ratio of solid material and water is 1 ︰ 0.56.
6. the preparation method of the composite adsorption stuffing according to claim 1 containing slow release carbon source, which is characterized in that described
Ingredient is by weight percent meter: cement 34%, flyash 17%, zeolite powder 13%, diatomite 23%, bentonite 10% and carbon source
3% makees solid material and water is made, and wherein the weight ratio of solid material and water is 1 ︰ 0.61.
7. the preparation method of the composite adsorption stuffing according to claim 1 containing slow release carbon source, which is characterized in that described
Ingredient is by weight percent meter: cement 35%, flyash 16%, zeolite powder 11%, diatomite 24%, bentonite 11% and carbon source
3% makees solid material and water is made, and wherein the weight ratio of solid material and water is 1 ︰ 0.65.
8. the composite adsorption stuffing containing slow release carbon source of -6 item the methods of claims 1 or 2 preparation filters dam, ecology in ecology
The application of polluted by nitrogen is removed in riverbed, artificial swamp.
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|---|---|---|---|---|
| CN110152591A (en) * | 2019-06-06 | 2019-08-23 | 华侨大学 | A kind of preparation method of city river polluted bed mud activity cover plate |
| CN111377498A (en) * | 2020-03-17 | 2020-07-07 | 郑州大学 | Multifunctional novel composite efficient phosphorus removal filler and preparation method thereof |
| CN112456950A (en) * | 2021-01-28 | 2021-03-09 | 潍坊学院 | Preparation method of denitrification and dephosphorization filter material capable of being started quickly |
| CN112897950A (en) * | 2021-02-03 | 2021-06-04 | 中国葛洲坝集团生态环境工程有限公司 | Preparation method of microbial carrier by taking sludge as raw material |
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| CN112456950B (en) * | 2021-01-28 | 2021-04-23 | 潍坊学院 | Preparation method of denitrification and dephosphorization filter material capable of being started quickly |
| CN112897950A (en) * | 2021-02-03 | 2021-06-04 | 中国葛洲坝集团生态环境工程有限公司 | Preparation method of microbial carrier by taking sludge as raw material |
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Application publication date: 20181211 |