CN107308811A - A kind of biological deodorizing filler and preparation method thereof - Google Patents
A kind of biological deodorizing filler and preparation method thereof Download PDFInfo
- Publication number
- CN107308811A CN107308811A CN201610265156.1A CN201610265156A CN107308811A CN 107308811 A CN107308811 A CN 107308811A CN 201610265156 A CN201610265156 A CN 201610265156A CN 107308811 A CN107308811 A CN 107308811A
- Authority
- CN
- China
- Prior art keywords
- weight
- parts
- particle
- sludge
- biological deodorizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
- B01D53/85—Biological processes with gas-solid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/95—Specific microorganisms
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of biological deodorizing filler and preparation method thereof, the biological deodorizing filler is prepared from by the additive of the deep dehydration sludge of 60~70 parts by weight, the clay of 20~30 parts by weight, the pottery sand of 10~20 parts by weight, 1~5 parts by weight, and its specific preparation method is：S1, deep dehydration sludge, clay, pottery sand and additive be well mixed, granulated by comminutor；S2, will granulation gained particle to dry at normal temperatures or in the environment of not higher than 80 DEG C to moisture content be 40~50%；S3, by dried particle send into anoxic high temperature carbonization furnace in, it is carbonized 30~45 minutes under 850~900 DEG C of temperature, 3~4Mpa pressure condition；S4, the particle after charing, which is come out of the stove, is cooled to room temperature；S5, the particle after cooling is sieved, broken pellet is separated, finished product pack.Beneficial effects of the present invention are：The present invention using discarded object as raw material, it is its low manufacture cost, environmental protection, good deodorization effect, widely applicable.
Description
Technical field
The present invention relates to biological deodorizing packing technique field, more particularly to a kind of good deodorization effect, cost are low, environmental protection
Biological deodorizing filler and preparation method thereof.
Background technology
Foul gas not only causes to have a strong impact on to ecological environment, and has great harm to health, can make
Nervous centralis produces obstacle, lesion, causes chronic disease, acute disease.Foreign countries have just started effluvium early in late 1950s
The research that body pollution is administered, and have accumulated abundant knowwhy and practical experience.China's 1980s just carries out stench
Research in terms of investigation, test and the standard of gaseous contamination, and the research to deodorization technique was just opened from 1990s
Begin to carry out.
Biological deodorizing carries out deodorization using biologic packing material, is one kind in numerous deodorizing methods.At present, removed in municipal works
Smelly field, biological deodorizing technology increasingly obtains everybody accreditation due to its moderately good treatment effect.Basic 80% have is smelly
The municipal project of gas pollution is all used as main technique from biological deodorizing.
Biologic packing material plays very important effect in biology deodorization technique, at present, and the biologic packing material that the country is used is pressed
Material can be divided into inorganic filler, organic filler and the class of compounded mix three.Inorganic filler mainly has Pall ring, Raschig ring, haydite, fire
Mountain rock etc..Inorganic filler can be as microorganism colonization and the carrier of growth, but does not contain support necessary to biological growth in itself
Point, need periodically additionally to supplement the nutrients for microorganism in the process of running.Further, since inorganic filler is than great, to the strong of tower body
Degree requires high, can increase construction investment to a certain extent.Organic filler mainly has bark, bamboo charcoal etc., and its own can be micro- life
Thing provides organic matter as nutrient source, and in the process of running without additionally adding nutriment for microorganism, but organic filler exists
It can be rotted in biological filtering tower combined working, thus its intensity can reduce, and finally make filter bed filler hardened, air flow shortcircuit, running resistance increase.It is multiple
Filler is closed, as the term suggests it is exactly that inorganic filler and organic filler are loaded in mixture in biological filtering tower combined working, though compounded mix has gathered inorganic fill out
Material and the advantage of organic filler, but the intrinsic shortcoming of inorganic filler and organic filler still constrains the economy of biological filtering tower combined working
Property, purification efficiency and service life.
It is most important, plant, ore and the oil of above-mentioned all biologic packing materials mostly in the Nature, it must be accounted for
A part of materials and equipment resources are used, and its manufacturing cost is high.
The content of the invention
The present invention is for above-mentioned the deficiencies in the prior art there is provided a kind of biological deodorizing filler and preparation method thereof, and it is adopted
Raw material, low manufacture cost, environmental protection, good deodorization effect are used as with discarded object.
To solve problems of the prior art, the concrete technical scheme that the present invention is used is：
A kind of biological deodorizing filler, the parts by weight shared by each component and each component included by it are：
The parts by weight of deep dehydration sludge 60~70
The parts by weight of clay 20~30
The parts by weight of pottery sand 10~20
The parts by weight of additive 1~5.
Wherein, the deep dehydration sludge for municipal sewage plant excess sludge after being nursed one's health by medicament, warp
Sludge obtained from deep dehydration, and the deep dehydration sludge be using excess sludge, Ferric Salt Flocculants, calcium salt flocculant and
Polyacrylamide is nursed one's health and obtained.
Present invention also offers a kind of preparation method of biological deodorizing filler, it comprises the following steps：
S1, deep dehydration sludge, clay, pottery sand and additive be well mixed, then granulated by comminutor；
S2, will be granulated through comminutor obtained by particle dry at normal temperatures or in the environment of not higher than 80 DEG C, until moisture content is
40~50%；
S3, by dried particle send into anaerobic condition high temperature carbonization furnace in, make its 850~900 DEG C temperature, 3~
Carbonized 30~45 minutes under 4Mpa pressure condition；
S4, the particle after charing is come out of the stove and room temperature is cooled to；
S5, the particle after cooling is sieved, broken pellet is separated, finished product pack.
It is preferred that scheme, the deep dehydration sludge refers to that the excess sludge of municipal sewage plant is nursed one's health by medicament
Afterwards, through sludge obtained from deep dehydration.
Further preferred scheme, the deep dehydration sludge is to use excess sludge, Ferric Salt Flocculants, calcium salt flocculant
Nurse one's health and obtain with polyacrylamide.
Parts by weight in scheme still more preferably, step S1 shared by each raw material are respectively：Deep dehydration sludge 60~
70 parts by weight, the parts by weight of clay 20~30, the parts by weight of pottery sand 10~20, the parts by weight of additive 1~5.
Scheme still further preferably, through comminutor granulate obtained by particle be shaped as it is cylindrical or spherical.
Through comminutor granulate obtained by particle particle diameter be 3~10mm, 10mm~20mm or 20~30mm.
Oxygen content described in step S3 in high temperature carbonization furnace is no more than 5%.
By using such scheme, a kind of biological deodorizing filler of the invention and preparation method thereof compared with prior art,
It has technical effect that：
1st, the discarded object-sludge of the invention for using sewage treatment plant is primary raw material, and the inertia biological deodorizing filler of production compares table
Area is big, use time is long, intensity is high, can not only be used in deodorizing device, solve the source of deodorant filler, be also simultaneously
A method of sludge is handled, is that the processing disposal of sludge have found a significantly outlet.
2nd, the present invention is used as raw material using discarded object, it is not necessary to cost, and if it is considered that the disposal for sludge is acted on,
A part of disposal expense can also be obtained, therefore, its production cost is substantially reduced, and whole engineering cost can about reduce 10% ~ 20%.
3rd, have a wide range of application：When used in bio-trickling or biofiltration technique, original filler can be replaced, so as to save
Cost；When for soil deodorization, retention time of odorous gases can also be shortened, so as to reduce the floor space of soil deodoration system.
4th, present invention process uses artificial granulation's technology, product cut size and controlled shape, it is adaptable to the deodorization of various occasions
Technique.
Brief description of the drawings
Fig. 1 is a kind of fabrication processing figure of biological deodorizing filler of the invention.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to instantiation and with reference to attached
Figure, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the present invention's
Scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring the present invention
Concept.
The preparation technology flow of the present invention is as shown in figure 1, the present invention is using 6~7 parts of deep dehydration sludge, and 2~3 parts stick
Soil, 1~2 part of pottery sand and a number of additive are well mixed, wherein, deep dehydration sludge refers to sludge by medicament
After conditioning, the excess sludge of the municipal sewage plant of depth press dewatering is carried out by plate and frame filter press.According to sewage plant
Property is different, and the sludge content of organic matter after deep dehydration is basic between 40%~50%.
Then granulated by comminutor（Particle size is controllable）.According to the difference of machine, it may be selected cylindrical or spherical
Particle.The particle turns into " raw grain ".Raw grain needs to dry to moisture content in normal temperature or in the environment of not higher than 80 degrees Celsius
40~50% or so.Through the product cut size produced by comminutor, need to control in 3~10mm according to technique, 10mm~20mm and
20~30mm specifications.Products obtained therefrom heap density is in 400kg ~ 450kg/m3, and surface area is about 0.5 ~ 0.8m2/g, and porosity is 55%
~ 60%, hardness is 11~11.5, and phosphorus content is different according to sludge source and property, substantially between 20% ~ 30%.
Then high temperature carbonization furnace is entered by arranging.In retort, by controlling carburizing temperature, flue gas oxygen content, with
And furnace pressure, make to give birth to grain and obtain a certain degree of expanded and carbonization.According to experiment, oxygen content is no more than 5% in stove；Temperature
For 850~900 degrees Celsius.Pressure is 3~4Mpa.Carbonization time is about 30~45min.Under the conditions of this, the finished product of products obtained therefrom
Rate can be higher, and percentage of damage is relatively low.
After carbonization completion is come out of the stove, it must carry out being cooled to natural temperature, then be sieved, broken pellet is isolated
Come, finished product pack.The broken pellet come is screened out, after Leaching of Heavy Metals experiment is qualified, can be used as soil conditioner.
Products obtained therefrom filler, mixing or not after mixotrophism salt particle can be used for biology deodorization technique.Typically may be used
In bio-trickling, biofiltration and soil deodorization, maximum hydrogen sulfide treatment ability is 40g/m3/h.It is normal in use,
The filter tank residence time can be controlled in 30-40s.This finished product can live through the filler in filter filter tank as drop filter, can also make
For the filler additive of soil deodorization.Product does not have adsorption capacity in itself, but product surface is hydrophily, is easier to growth
Microorganism, a good selection of biological deodorizing filler of can yet be regarded as.Occasion is answered not have water or water containing nutriment when used
During source, supported by the arm among filler mix 5% deodorization special nutritional salt particle.
Embodiment one：
1st, 60KG deep dehydration sludge, 20KG clay, 10KG pottery sand and 1KG additive are well mixed, Ran Houtong
Cross comminutor and granulate to obtain cylindrical particle, grain diameter is 3~10mm；
2nd, the particle obtained by being granulated through comminutor is dried at normal temperatures or in the environment of not higher than 80 DEG C, until moisture content is 40
~50%；
3rd, dried particle is sent into oxygen-containing 3% high temperature carbonization furnace, makes its temperature at 850~900 DEG C, 3~4Mpa
Carbonized 30~45 minutes under pressure condition；
4th, the particle after charing is come out of the stove and is cooled to room temperature；
5th, the particle after cooling is sieved, broken pellet is separated, finished product pack.
Embodiment two：
1st, 70KG deep dehydration sludge, 30KG clay, 20KG pottery sand and 5KG additive are well mixed, Ran Houtong
Cross comminutor and granulate to obtain ball particle, grain diameter is 10mm~20mm；
2nd, the particle obtained by being granulated through comminutor is dried at normal temperatures or in the environment of not higher than 80 DEG C, until moisture content is 40
~50%；
3rd, dried particle is sent into oxygen-containing 4% high temperature carbonization furnace, makes its temperature at 850~900 DEG C, 3~4Mpa
Carbonized 30~45 minutes under pressure condition；
4th, the particle after charing is come out of the stove and is cooled to room temperature；
5th, the particle after cooling is sieved, broken pellet is separated, finished product pack.
Embodiment three：
1st, 65KG deep dehydration sludge, 25KG clay, 15KG pottery sand and 3KG additive are well mixed, Ran Houtong
Cross comminutor and granulate to obtain cylindrical particle, grain diameter is 20~30mm；
2nd, the particle obtained by being granulated through comminutor is dried at normal temperatures or in the environment of not higher than 80 DEG C, until moisture content is 40
~50%；
3rd, dried particle is sent into oxygen-containing 5% high temperature carbonization furnace, makes its temperature at 850~900 DEG C, 3~4Mpa
Carbonized 30~45 minutes under pressure condition；
4th, the particle after charing is come out of the stove and is cooled to room temperature；
5th, the particle after cooling is sieved, broken pellet is separated, finished product pack.
The foregoing is merely illustrative of the preferred embodiments of the present invention, the protection domain being not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification for being made, equivalent substitution, it is all contained within protection scope of the present invention.
Claims (10)
1. a kind of biological deodorizing filler, it is characterised in that the parts by weight shared by each component and each component included by it are：
The parts by weight of deep dehydration sludge 60~70
The parts by weight of clay 20~30
The parts by weight of pottery sand 10~20
The parts by weight of additive 1~5.
2. a kind of biological deodorizing filler according to claim 1, it is characterised in that：The deep dehydration sludge is dirty for municipal administration
The excess sludge of water treatment plant by medicament after being nursed one's health, through sludge obtained from deep dehydration.
3. a kind of biological deodorizing filler according to claim 2, it is characterised in that：The deep dehydration sludge is using surplus
Remaining sludge, Ferric Salt Flocculants, calcium salt flocculant and polyacrylamide are nursed one's health and obtained.
4. a kind of preparation method of biological deodorizing filler, it is characterised in that it comprises the following steps：
S1, deep dehydration sludge, clay, pottery sand and additive be well mixed, then granulated by comminutor；
S2, will be granulated through comminutor obtained by particle dry at normal temperatures or in the environment of not higher than 80 DEG C, until moisture content is
40~50%；
S3, by dried particle send into anaerobic condition high temperature carbonization furnace in, make its 850~900 DEG C temperature, 3~
Carbonized 30~45 minutes under 4Mpa pressure condition；
S4, the particle after charing is come out of the stove and room temperature is cooled to；
S5, the particle after cooling is sieved, broken pellet is separated, finished product pack.
5. the preparation method of a kind of biological deodorizing filler according to claim 4, it is characterised in that the deep dehydration is dirty
Mud refers to the excess sludge of municipal sewage plant after being nursed one's health by medicament, through sludge obtained from deep dehydration.
6. the preparation method of a kind of biological deodorizing filler according to claim 5, it is characterised in that the deep dehydration is dirty
Mud is obtained using excess sludge, Ferric Salt Flocculants, calcium salt flocculant and polyacrylamide conditioning.
7. a kind of preparation method of biological deodorizing filler according to claim 4, it is characterised in that each raw material in step S1
Shared parts by weight are respectively：The parts by weight of deep dehydration sludge 60~70, the parts by weight of clay 20~30, the weight of pottery sand 10~20
Part, the parts by weight of additive 1~5.
8. the preparation method of a kind of biological deodorizing filler according to claim 4, it is characterised in that granulate institute through comminutor
Being shaped as the particle obtained is cylindrical or spherical.
9. the preparation method of a kind of biological deodorizing filler according to claim 4, it is characterised in that granulate institute through comminutor
The particle diameter of the particle obtained is 3~10mm, 10mm~20mm or 20~30mm.
10. the preparation method of a kind of biological deodorizing filler according to claim 4, it is characterised in that high described in step S3
Oxygen content in warm retort is no more than 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265156.1A CN107308811A (en) | 2016-04-26 | 2016-04-26 | A kind of biological deodorizing filler and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265156.1A CN107308811A (en) | 2016-04-26 | 2016-04-26 | A kind of biological deodorizing filler and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107308811A true CN107308811A (en) | 2017-11-03 |
Family
ID=60185291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610265156.1A Pending CN107308811A (en) | 2016-04-26 | 2016-04-26 | A kind of biological deodorizing filler and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107308811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545043A (en) * | 2020-04-30 | 2020-08-18 | 湖南普泰尔环境股份有限公司 | Biological filter deodorization system and method for treating peculiar smell |
| CN111888913A (en) * | 2020-08-01 | 2020-11-06 | 江苏博恩环境工程成套设备有限公司 | Granular biological filter material for biological deodorization of waste gas based on dewatered sludge of municipal sewage plant, preparation method and application |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229945A (en) * | 2007-01-22 | 2008-07-30 | 大连理工大学 | Biological aerated filter filler using waste material as raw material and preparation method thereof |
| CN101407408A (en) * | 2007-10-10 | 2009-04-15 | 中国环境科学研究院 | Method for burning haydite by utilizing sludge |
| CN101648745A (en) * | 2009-09-04 | 2010-02-17 | 宇星科技发展(深圳)有限公司 | Magnetic seed filler taking sludge as main raw material and preparation method thereof |
| CN102205964A (en) * | 2011-04-25 | 2011-10-05 | 山东大学 | Granular activated carbon filler for paper mill sludge and preparation method thereof |
| CN102491731A (en) * | 2011-12-08 | 2012-06-13 | 复旦大学 | Preparation method of biological ceramsite |
| CN103212287A (en) * | 2013-04-15 | 2013-07-24 | 北京城市排水集团有限责任公司 | Method for producing high-efficiency biological deodorizing mixed stuffing |
| CN103418236A (en) * | 2013-08-28 | 2013-12-04 | 上海交通大学 | Biological deodorizing packing and device |
| CN104098250A (en) * | 2013-12-30 | 2014-10-15 | 北京亿维德曼科技发展有限公司 | Municipal sludge two-stage deep dehydration method combining chemical regulation strengthening preliminary mechanical dehydration and electroosmosis |
| WO2014180753A1 (en) * | 2013-05-08 | 2014-11-13 | Siemens Aktiengesellschaft | Hydrothermal carbonization of wastewater sludge and black liquor |
-
2016
- 2016-04-26 CN CN201610265156.1A patent/CN107308811A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229945A (en) * | 2007-01-22 | 2008-07-30 | 大连理工大学 | Biological aerated filter filler using waste material as raw material and preparation method thereof |
| CN101407408A (en) * | 2007-10-10 | 2009-04-15 | 中国环境科学研究院 | Method for burning haydite by utilizing sludge |
| CN101648745A (en) * | 2009-09-04 | 2010-02-17 | 宇星科技发展(深圳)有限公司 | Magnetic seed filler taking sludge as main raw material and preparation method thereof |
| CN102205964A (en) * | 2011-04-25 | 2011-10-05 | 山东大学 | Granular activated carbon filler for paper mill sludge and preparation method thereof |
| CN102491731A (en) * | 2011-12-08 | 2012-06-13 | 复旦大学 | Preparation method of biological ceramsite |
| CN103212287A (en) * | 2013-04-15 | 2013-07-24 | 北京城市排水集团有限责任公司 | Method for producing high-efficiency biological deodorizing mixed stuffing |
| WO2014180753A1 (en) * | 2013-05-08 | 2014-11-13 | Siemens Aktiengesellschaft | Hydrothermal carbonization of wastewater sludge and black liquor |
| CN103418236A (en) * | 2013-08-28 | 2013-12-04 | 上海交通大学 | Biological deodorizing packing and device |
| CN104098250A (en) * | 2013-12-30 | 2014-10-15 | 北京亿维德曼科技发展有限公司 | Municipal sludge two-stage deep dehydration method combining chemical regulation strengthening preliminary mechanical dehydration and electroosmosis |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545043A (en) * | 2020-04-30 | 2020-08-18 | 湖南普泰尔环境股份有限公司 | Biological filter deodorization system and method for treating peculiar smell |
| CN111545043B (en) * | 2020-04-30 | 2022-07-29 | 湖南普泰尔环境股份有限公司 | Biological filter deodorization system and method for treating peculiar smell |
| CN111888913A (en) * | 2020-08-01 | 2020-11-06 | 江苏博恩环境工程成套设备有限公司 | Granular biological filter material for biological deodorization of waste gas based on dewatered sludge of municipal sewage plant, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110240386B (en) | Straw and sludge cooperative treatment device and method | |
| CN111135790B (en) | Dephosphorization composite adsorbent, preparation method thereof and application thereof in sewage treatment | |
| CN102965365B (en) | Preparation method for microbial nanospheres for water quality purification | |
| CN1150975C (en) | Spherical porous light haydite for treating waste water and its production method | |
| CN109174026B (en) | Composite microalgae biological adsorbent microsphere and method for adsorbing chromium in wastewater by using composite microalgae biological adsorbent microsphere | |
| CN102276237B (en) | Attapulgite-based carbon composite ceramic particles and preparation method and use thereof | |
| CN112624792B (en) | Ceramsite prepared from byproducts of sludge treatment based on plants, and preparation method and application thereof | |
| CN101445388A (en) | Porous ceramic grain for disposing wastewater and method for preparing same | |
| CN102659238B (en) | Multifunctional suspended carrier for sewage treatment and preparation method of multifunctional suspended carrier | |
| KR102032335B1 (en) | Soil conditioner with function of growth assistance using bottom ash and fly ash of thermal power plant, and production method thereof | |
| CN110918055A (en) | Composite material for efficiently removing phosphorus in wastewater, preparation method and application thereof | |
| CN103951044B (en) | A kind of non-sintered rapid biofilm biologic packing material and preparation method thereof | |
| CN107188601A (en) | A kind of method that utilization city sewage and sludge prepares light porous haydite | |
| CN105597696B (en) | A kind of core shell structure biologic packing material and preparation method thereof | |
| CN103212287A (en) | Method for producing high-efficiency biological deodorizing mixed stuffing | |
| CN111187124A (en) | Method for preparing eutrophic water body remediation material by using oil shale semi-coke and application | |
| CN107308811A (en) | A kind of biological deodorizing filler and preparation method thereof | |
| CN102211838B (en) | Method for harmlessly treating livestock and poultry breeding waste water | |
| JP7510696B2 (en) | Natural mineral activation composite filter tailored to health functions and its manufacturing method | |
| CN111545206A (en) | Method for preparing advanced iron oxide carbon catalyst from biomass in one step and application | |
| CN104045163B (en) | A kind of method utilizing titanium-containing blast furnace slag to promote Wastewater Treatment by Constructed Wetlands performance | |
| CN105906397A (en) | Method and device for producing granular organic fertilizer by organic solid waste granulation variable-pressure composting | |
| CN106082443A (en) | A kind of artificial swamp porous composite interstitial substance and preparation method thereof | |
| CN109650641A (en) | A kind of environment-protective process that Threonine Fermentation industrial wastewater is effectively treated | |
| CN106927656A (en) | A kind of method of Fenton sludge filler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |
|
| RJ01 | Rejection of invention patent application after publication |