CN100393634C - Composite dieselguhr coagulation aid used for garbage percolation sewage treatment - Google Patents
Composite dieselguhr coagulation aid used for garbage percolation sewage treatment Download PDFInfo
- Publication number
- CN100393634C CN100393634C CNB2006100440149A CN200610044014A CN100393634C CN 100393634 C CN100393634 C CN 100393634C CN B2006100440149 A CNB2006100440149 A CN B2006100440149A CN 200610044014 A CN200610044014 A CN 200610044014A CN 100393634 C CN100393634 C CN 100393634C
- Authority
- CN
- China
- Prior art keywords
- diatomite
- powder
- temperature
- percentage
- weight
- 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.)
- Expired - Fee Related
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention discloses composite diatomite coagulation aid used for garbage percolation liquid sewage treatment. A diatomite mine containing 10 to 30% of aluminum oxide is pulverized, heated, dried and dehydrated into powder at the temperature of 450 DEG C to 550 DEG C, or factory aluminum oxide leftover materials with 70 to 95 wt% of the diatomite addition corresponding compounding ratio or bauxite are pulverized, dried and dehydrated. Temperature is gradually increased from the normal temperature during dehydration, until the temperature reaches the temperature interval of 450 DEG C to 550 DEG C. The powder contains the r-Al2 O3 molecule materials of needle-shaped crystals. Composite diatomite has the double functions of flocculation and aiding coagulation simultaneously in the garbage percolation liquid sewage treated by generating and adding the r-Al2 O3 molecule materials with a certain proportion into diatomite. Thus, the neutralization, the flocculation, the adsorption and the sedimentation of sewage can be rapidly realized; the purposes of high processing speed, short technological process, the compact structure of facilities, little equipment investment, small occupation area and low operation cost are achieved.
Description
Technical field
The invention belongs to environmental technology field, particularly relate to a kind of compound diatomite coagulant aids that is used for the garbage leachate sewage disposal.
Background technology
Diatomite (Diatemite) is a kind of biogenic opal that contains the noncrystal silicon-dioxide of crystal water, mainly by diatom (a kind of single celled hydrobiontic algae) remains and the fixed placer deposits that forms of ooze, have the porosity height, characteristic such as specific surface area is big, adsorptivity is strong, light weight is firm, sound insulation, heat insulation, wear-resisting, acidproof and heat conductivity are low, be widely used in industries such as water treatment, diet, building materials, chemical industry, rubber, petrochemical industry, medicine, metallurgy, paint, makeup, coating, machinery, the energy.Diatomaceous soft there are a lot of micropores inside and light, and specific surface area reaches 20～70m
2/ g, therefore, it has the good adsorption performance, particularly is good at adsorbing the suspended particulates of holding back in the solution.Employing diatomite extensively is familiar with and application by institute of society as the coagulant aids of sewage disposal; the ultimate principle that diatomite is handled suspended substance is that tiny in the diatomite, porous diatom individuality at first destroys the balance between the suspended substance; then trickle suspended substance is adsorbed on around the diatom; formation is the macrobead group at center with the diatom; this relatively independent group is individual big; internal voids rate height, mud can precipitate rapidly.But, adopt in the process that diatomite processes garbage leachate sewage, because its succession complexity of garbage leachate sewage, concentration height, wherein NH
2The concentration of-N can up to 300-600mg/L, be difficult to remove with the method for conventional flocculation sediment.And other pollutent is because the concentration height, and only depending on dosing coagulant also is to be difficult to accomplish qualified discharge, owing to add the secondary pollution that a large amount of coagulating agent also can cause water body, and flocculation rate is slow, suspension time is long, and treatment effect is not good, adds coagulant aids so just introduced.Even like this, reach the treatment effect of emission standard, just must use more diatomite coagulant aids, floor space is big, facility investment is big, running cost is high, the drawback of complex process thereby brought.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal is provided, by in diatomite, producing or adding a certain proportion of r-Al
2O
3The bioactive molecule material, make compound diatomite that flocculation be arranged in the garbage leachate sewage disposal simultaneously and help solidifying double action, can realize rapidly neutralization, flocculation, absorption and the sedimentation of sewage, and significantly reduced the dosage of coagulant, reach the purpose that processing speed is fast, technological process is short, facility structure is compact, equipment investment is little, floor space is little, operating cost is low.
The technical solution adopted for the present invention to solve the technical problems is: a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal, that the diatomite ore that will itself contain 10～30% aluminium oxide carries out more than 450 ℃, 550 ℃ of following temperature drying and dehydratings are processed, through the pulvis that the cooling crush screening is made, contain the r-Al of acicular crystal in the pulvis
2O
3Molecular material, its pulvis color is pale yellow.Certain this ore deposit is few, and this compound coagulant aids is optimal product.
A kind of compound diatomite flocculation aid for the garbage leachate sewage disposal, be 85～95% diatomite with percentage by weight with percentage by weight to be that factory's aluminium oxide leftover bits and pieces of 5～15% evenly mixes, carry out the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until till temperature reaches between 450 ℃ to 500 ℃, the mixed powder that obtains finally by the cooling crush screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
A kind of compound diatomite flocculation aid for the garbage leachate sewage disposal, be 70～90% diatomite with percentage by weight with percentage by weight to be that 10～30% bauxite evenly mixes, carry out the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until till temperature reaches between 500 ℃ to 550 ℃, the mixed powder that obtains finally by the cooling crush screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Compound diatomite flocculation aid of the present invention is to produce in diatomite or add a certain proportion of r-Al
2O
3Molecular material, r-Al
2O
3Be acicular crystal, because r-Al
2O
3Can be dissolved in acid or alkali and the same with diatomite big porous surface crack be arranged, and r-Al
2O
3In alkaline sewage, can produce Al (HO)
3↓ floccule body participates in the effect of purifying waste water, and this compound diatomite flocculation aid has simultaneously flocculation and helps solidifying double action in the garbage leachate sewage disposal, and in the garbage leachate sewage disposal to meta-alkali, its effect is more obvious.
Compound diatomite flocculation aid of the present invention uses in the processing procedure such as sewage such as garbage leachates, NH in the garbage leachate sewage
2The concentration of-N can be up to 300-600mg/L, pH value in the sewage is mostly between 7.3～7.8, during to the removal of ammonia nitrogen, can adopt feeding lime, carry out digestion process, pH value is reached more than 10.5, carry out then aeration stripping, behind ammonia nitrogen digestion stripping process, add again compound diatomite, other pollutant in the sewage is because the alkaline digest effect of lime becomes the free steady molecule that takes off mostly at this moment, such as phosphate, calcium, magnesium, fluoride and some heavy metal, especially to the precipitation cadmium, chromium, copper, nickel, lead and silver are especially effective, compound diatomite adds after this segment process flow process, mixes rear and these free pollutant generation suction-operateds fully, and this is because diatom and r-Al
2O
3Molecular material has big surface area and huge pore volume and stronger absorption affinity, can the organic matter in the sewage and inorganic matter is trickle and material superfine is adsorbed onto diatom and r-Al
2O
3The surface, be follow-up flocculant, add such as aluminum sulfate, perform sufficient preparation, flocculation is carried out comprehensively, thereby the colloidal solid that reaches in the sewage is condensed into bigger wadding flower, pollutant is thus by rapid physical flocculation, precipitation, make garbage leachate sewage reach the dirty separation of water, accomplish to allow garbage leachate sewage after treatment, fully qualified discharge.General coagulant mostly is greatly aluminium salt or molysite, drops in the sewage and has all brought a certain proportion of acid ion, and coagulant is thrown to such an extent that how this more pollution be also more serious, and the flocculation aid that adds can not effectively be removed these acid ions.If in coagulant aids, add the material of a certain proportion of activated alumina one class, just can make coagulant aids also have the effect of coagulating agent, and can be after adding as aluminium salt and molysite residual acid radical ion in water.
The invention has the beneficial effects as follows, produce or add a certain proportion of r-Al owing to adopted in diatomite
2O
3Molecular material, make compound diatomite that flocculation be arranged in the garbage leachate sewage disposal simultaneously and help solidifying double action, can realize rapidly the neutralization of sewage, flocculation, absorption and sedimentation, like this, just can greatly reduce diatomaceous use amount, process same sewage, half of the diatomite use amount that compound diatomaceous diatomite use amount of the present invention only is former mode, what is more important, because processing speed is accelerated, the processing time of sewage is shortened greatly, and the volume for the treatment of pond also dwindles greatly on the one hand, has brought the little benefit of equipment investment after floor space is dwindled; Behind the technological process weak point, make also relative reduce of operating cost on the other hand.Thereby compound diatomite of the present invention has bigger popularizing value.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail; But a kind of compound diatomite coagulant aids that is used for the garbage leachate sewage disposal of the present invention is not limited to embodiment.
Embodiment one, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, be 85% diatomite with percentage by weight with percentage by weight to be that factory's aluminium oxide leftover bits and pieces of 15% is pulverized even the mixing, carrying out then drying and dehydrating processes, begin progressively to raise temperature by normal temperature, until temperature reaches till 460 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Compound diatomite flocculation aid of the present invention is to add a certain proportion of r-Al in diatomite
2O
3Molecular material, r-Al
2O
3Be acicular crystal, because r-Al
2O
3Can be dissolved in acid or alkali and the same with diatomite big porous surface crack be arranged, thereby, this compound diatomite flocculation aid has simultaneously flocculation and helps solidifying double action in the garbage leachate sewage disposal, in the garbage leachate sewage disposal to meta-alkali, its effect is more obvious.
Compound diatomite flocculation aid of the present invention uses in the processing procedure such as sewage such as garbage leachates, NH in the garbage leachate sewage
2The concentration of-N can be up to 300-600mg/L, pH value in the sewage is mostly between 7.3～7.8, during to the removal of ammonia nitrogen, can adopt feeding lime, carry out digestion process, pH value is reached more than 10.5, carry out then aeration stripping, behind ammonia nitrogen digestion stripping process, add again compound diatomite, other pollutant in the sewage is because the alkaline digest effect of lime becomes the free steady molecule that takes off mostly at this moment, such as phosphate, calcium, magnesium, fluoride and some heavy metal, especially to the precipitation cadmium, chromium, copper, nickel, lead and silver are especially effective, compound diatomite adds after this segment process flow process, mixes rear and these free pollutant generation suction-operateds fully, and this is because diatom and r-Al
2O
3Molecular material has huge surface area and huge pore volume and stronger absorption affinity, can the organic matter in the sewage and inorganic matter is trickle and material superfine is adsorbed onto diatom and r-Al
2O
3The surface, be follow-up flocculant, add such as aluminum sulfate, perform sufficient preparation, flocculation is carried out comprehensively, thereby the colloidal solid that reaches in the sewage is condensed into bigger wadding flower, pollutant is thus by rapid physical flocculation, precipitation, make garbage leachate sewage reach the dirty separation of water, accomplish to allow garbage leachate sewage after treatment, fully qualified discharge.
Embodiment two, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, to be that to carry out with percentage by weight be that factory's aluminium oxide leftover bits and pieces of 13% is pulverized even the mixing for 87% diatomite with percentage by weight, carry out then the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 480 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Embodiment three, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, be 92% diatomite with percentage by weight with percentage by weight to be that factory's aluminium oxide leftover bits and pieces of 8% is pulverized even the mixing, carry out then the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 500 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Embodiment four, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, be 95% diatomite with percentage by weight with percentage by weight to be that factory's aluminium oxide leftover bits and pieces of 5% is pulverized even the mixing, carry out then the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 500 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Embodiment five, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, be 70% diatomite with percentage by weight with percentage by weight to be that 30% bauxite is pulverized even the mixing, carry out then the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 460 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Embodiment six, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, to be that to add percentage by weight in 83% the diatomite be that 17% bauxite is pulverized even mixing with percentage by weight, carry out then the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 500 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Embodiment seven, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, be 88% diatomite with percentage by weight with percentage by weight to be that 12% bauxite is pulverized even the mixing, carry out then the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 530 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Embodiment eight, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, be 90% diatomite with percentage by weight with percentage by weight to be that 10% bauxite is pulverized even the mixing, carry out then the heat drying dehydration, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 550 ℃, the mixed powder that obtains finally by cooling screening is the pale yellow powder of grey leukorrhea, contains the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Embodiment nine, a kind of compound diatomite flocculation aid for the garbage leachate sewage disposal of the present invention, that the diatomite ore that will itself contain 10～30% aluminium oxide carries out more than 450 ℃, 550 ℃ of following temperature heat drying dehydrations, the dry temperature that progressively raises under the normal temperature, until temperature reaches more than 450 ℃, contain till the temperature range below 550 ℃, finally by the light yellow powder that the cooling crush screening obtains, contain the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
The foregoing description only is used for further specifying the compound diatomite coagulant aids that is used for the garbage leachate sewage disposal of the present invention; but the present invention is not limited to embodiment; every foundation technical spirit of the present invention all falls in the protection domain of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. compound diatomite flocculation aid that is used for the garbage leachate sewage disposal, it is characterized in that: be that the diatomite ore that itself contains 10～30% aluminium oxide is pulverized, carry out then the heat drying processed, dry begin progressively to heat till the temperature range more than 450 ℃, below 550 ℃ from normal temperature, obtain powder finally by screening after the cooling, contain the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
2. compound diatomite flocculation aid that is used for the garbage leachate sewage disposal, it is characterized in that: be 85～95% diatomite with percentage by weight with percentage by weight to be that factory's aluminium oxide leftover bits and pieces of 5～15% is pulverized even the mixing, carry out then the heat drying processed, drying progressively raises under normal temperature, until temperature reaches till 450 ℃～500 ℃ the interval, obtain powder finally by screening after the cooling, contain the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
3. compound diatomite flocculation aid that is used for the garbage leachate sewage disposal, it is characterized in that: be 70～90% diatomite with percentage by weight with percentage by weight to be that 10～30% bauxite is pulverized even the mixing, carry out then the heat drying processed, the dry temperature that progressively raises under the normal temperature, until temperature reaches till 450 ℃～550 ℃ the interval, obtain powder finally by screening after the cooling, contain the r-Al of acicular crystal in the powder
2O
3Molecular material, powder diameter≤0.043mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100440149A CN100393634C (en) | 2006-04-30 | 2006-04-30 | Composite dieselguhr coagulation aid used for garbage percolation sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100440149A CN100393634C (en) | 2006-04-30 | 2006-04-30 | Composite dieselguhr coagulation aid used for garbage percolation sewage treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1868909A CN1868909A (en) | 2006-11-29 |
| CN100393634C true CN100393634C (en) | 2008-06-11 |
Family
ID=37442715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100440149A Expired - Fee Related CN100393634C (en) | 2006-04-30 | 2006-04-30 | Composite dieselguhr coagulation aid used for garbage percolation sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100393634C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456516A (en) * | 2003-03-14 | 2003-11-19 | 李识 | Production and treating process for high efficient percolate finishing agent for urban refuse cite |
| CN1730415A (en) * | 2005-07-20 | 2006-02-08 | 贵州远达环保工程有限公司 | Technique for treating garbage percolate based on diatomite and UASB |
-
2006
- 2006-04-30 CN CNB2006100440149A patent/CN100393634C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456516A (en) * | 2003-03-14 | 2003-11-19 | 李识 | Production and treating process for high efficient percolate finishing agent for urban refuse cite |
| CN1730415A (en) * | 2005-07-20 | 2006-02-08 | 贵州远达环保工程有限公司 | Technique for treating garbage percolate based on diatomite and UASB |
Non-Patent Citations (2)
| Title |
|---|
| 广西化工. 郭秋宁，全文. 1996 |
| 广西化工. 郭秋宁，全文. 1996 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1868909A (en) | 2006-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103641245B (en) | A kind of paper-making waste water treating agent and preparation method thereof | |
| Safari et al. | Trends of natural and acid-engineered pumice onto phosphorus ions in aquatic environment: adsorbent preparation, characterization, and kinetic and equilibrium modeling | |
| CN1319640C (en) | Method for preparing active fly ash phosphorus adsorbent | |
| WO2006089475A1 (en) | A modified refined-diatomite as treating agent for waste water and method for preparing thereof | |
| CN106865655A (en) | A kind of attapulgite sewage-treating agent and preparation method thereof | |
| CN109809519A (en) | A kind of Organic-inorganic composite sewage-treating agent and preparation method thereof | |
| CN101723499A (en) | Preparation technology of diethylenetriaminepentaacetic acid modified diatomite | |
| CN101948158A (en) | Method for treating sewage by modified settling agent strengthening flocculation/coagulation | |
| CN105107457B (en) | A kind of preparation method of inorganic powder material and application | |
| CN105948339A (en) | Treatment process of aquaculture waste water | |
| CN103252216B (en) | Adsorbent, preparation process thereof and application of adsorbent to purification of ammonia-nitrogen wastewater with medium-low concentration | |
| CN107758823B (en) | Domestic sewage treatment agent and preparation method thereof | |
| CN103922453A (en) | Flocculating agent for coking wastewater and preparation method thereof and application thereof | |
| KR101334861B1 (en) | Method for manufacturing porous pellet type water treatment agent | |
| CN102963951A (en) | Method for treating papermaking wastewater | |
| CN105152260A (en) | Town sewage curing agent and preparation method thereof | |
| Yi et al. | Phosphate removal of acid wastewater from high-phosphate hematite pickling process by in-situ self-formed dynamic membrane technology | |
| CN108284126B (en) | A kind of purification and restoration agent for polluted soil and purification and restoration treatment method | |
| CN101954269A (en) | A health-care activating water purifier | |
| RU2277013C1 (en) | Water treatment sorbents preparation method | |
| CN108786717A (en) | A kind of preparation method of modified copper water-supply pipe particle and its application in going water removal on phosphate | |
| CN100393634C (en) | Composite dieselguhr coagulation aid used for garbage percolation sewage treatment | |
| CN108295822A (en) | A kind of factory's pollution discharge pond water quality cleansing agent and preparation method thereof | |
| CN101665278A (en) | Compound phosphorus removal flocculating agent for water treatment | |
| CN103395869A (en) | Water-quenched slag silicate series coagulants and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20110430 |