CN105731760A - Modified diatomite and preparation method thereof, sludge conditioner and sludge treatment method - Google Patents
Modified diatomite and preparation method thereof, sludge conditioner and sludge treatment method Download PDFInfo
- Publication number
- CN105731760A CN105731760A CN201610065046.0A CN201610065046A CN105731760A CN 105731760 A CN105731760 A CN 105731760A CN 201610065046 A CN201610065046 A CN 201610065046A CN 105731760 A CN105731760 A CN 105731760A
- Authority
- CN
- China
- Prior art keywords
- sludge
- kieselguhr
- modifying agent
- obtains
- temperature
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention has a first purpose of providing modified diatomite, comprising diatomite with cations, wherein the diatomite with cations is prepared by modifying diatomite by virtue of a modifier; and the modifier is hexadecyl trimethyl ammonium bromide or cationic polyacrylamide. The modified diatomite provided by the invention carries a lot of cations, so that the capacity of treating sewage, sludge and the like is greatly improved. The invention has a second purpose of providing a preparation method of two types of diatomite, wherein the overall process of the preparation method is simple, and process parameters are easy to control. The invention has a third purpose of providing a sludge conditioner, comprising the diatomite with cations. The sludge conditioner provided by the invention has the technical effects of low cost, low use level, no pollution, and good sludge dewatering effect. The invention has a fourth purpose of providing a sludge treatment method which is small in equipment investment, simple in process, easily-controlled in process parameter, and low in sludge treatment cost.
Description
Technical field
The present invention relates to Solid Waste Treatment technical field, be specifically related to a kind of modification infusorial earth, the preparation method of modification infusorial earth, the sludge conditioner comprising this modification infusorial earth and the method carrying out Treatment of Sludge with this sludge conditioner.
Background technology
In recent years, the increase of town domestic sewage treating capacity causes that residual active sludge amount is greatly improved, and therefore, process and recycling to mud are increasingly subject to pay close attention to.In order to reach the minimizing of mud, stabilization, innoxious, resource, dehydration, dry, burn before, generally mud is carried out a series of pre-treatment to change physico-chemical property and the component on mud granule surface, destroy the colloform texture of mud, reduce the affinity with water, improving dewatering, thus reducing operational difficulty, increasing the resource value of mud.Usual mud pre-treatment is divided into three classes according to mechanism:
1, Physical: this method specifically refers to the method to change sludge quality by external energy or stress, such as freezing thawing process, heat treated, ultrasonic Treatment, HIGH PRESSURE TREATMENT etc..The method can destroy mud flocculation structure, makes mud Interstitial Water dissociate, improves the dewatering of mud, but its application is not extensive, it is important to investment, operating cost height, complicated operation；Freezing thawing processes and can also be sufficiently destroyed mud flocculation structure, and it can make mud Bound moisture content be substantially reduced, but the restriction of its climate condition is difficult to popularity application.
2, bioanalysis: such as aerobic sigestion or anaerobic digestion, in these programs, aerobic or anaerobic bacteria flora utilizes the compositions such as the carbon in waste sludge, nitrogen, phosphorus to be growth substrate, to reach mud decrement and the purpose destroying mud height pore structure.20 century 70s just have researcher to start to develop microbial flocculant, including directly using microbial cell as flocculant；From microbial cell body, extraction of substance is as flocculant；The metabolite of microbial cell is as this three classes method of flocculant.
3, chemical method: this method changes the characteristic of mud in the way of adding chemical agent, as changed pH-value, change ionic strength, adding inorganic metal salt flocculant, or add organic polymer coargulator, ozonation aerated etc..Currently used macromolecule organic flocculating agent is the main flow direction of chemical conditioning, and conditioning effect and flocculant nature have much relations, but up to the present, the selection of conditioner and the optimum amount of conditioner be need nonetheless remain for based on on-the-spot test.With regard to the Treatment of Sludge of current Ge great sewage treatment plant, it is mostly by the elimination of moisture in chemical conditioning reinforcement sludge, obtains the mud cake that solid content is high, thus reducing mud transport and processing the expense disposed.But, current most widely used chemical sludge conditioner is the high molecular polymer such as bodied ferric sulfate, aluminium polychlorid, owing to these materials easily produce toxic monomers, it is unfavorable for follow-up sludge ultimate disposal and recycling so that its application exists limitation.
Therefore, the searching sludge conditioner that a kind of cost is low, institute's expense is few, pollution-free and sludge dewatering is effective it is badly in need of in industry to solve the deficiencies in the prior art.
Summary of the invention
The object of the invention the first purpose is in that to provide a kind of concrete a large amount of cationic modification infusorial earths, and concrete scheme is as follows:
A kind of modification infusorial earth, including with cationic kieselguhr, to be prepared by the kieselguhr of modifier modification 95-99 part of 1-5 part with cationic kieselguhr parts by weight Suo Shu；
Described modifying agent is cetyl trimethylammonium bromide or PAMC.
In above technical scheme preferably, kieselguhr includes following component by weight percentage: silicon dioxide 70-85%, aluminium sesquioxide 10-15%, calcium oxide 5-10% and iron sesquioxide 0-5%.
Kieselguhr is a kind of biogenic silicastone, there is feature light porous, that specific surface area is big and chemical stability is high, kieselguhr surface is with elecrtonegativity, so, for the colloidal attitude pollutant with positive lotus, kieselguhr can realize colloidal attitude pollutant being carried out charge neutrality and making its elimination of colloid stability.At present, the granule in mud is electronegative mostly, therefore, only with kieselguhr, it is processed, poor effect.In addition, Sludge Surface makes it become activated sludge aggregation because condensing some macromolecular substances, this kind of material is not easily compressed, so, more Interstitial Water is contained in the inside of activated sludge aggregation, the sedimentation velocity ultimately resulting in activated sludge aggregation slows down and dewatering decline, specifically: extracellular polymeric (is called for short EPS, it be when certain environment by microorganism secretion in some external high molecular polymers, such as polysaccharide, protein and nucleic acid etc.) it is prevalent in active pollution index inside and surface, extracellular polymeric (EPS) can in conjunction with substantial amounts of water, therefore, concentration and the strainability of activated sludge are had direct impact by extracellular polymeric (EPS)；Protein and polysaccharide account for the 70%～80% of extracellular polymeric (EPS) total content, and therefore, extracellular polymeric (EPS) can by being analyzed the content of protein in filtrate and polysaccharide on the impact of dewatering performance of sludge.Protein has the double electrical layers of colloidal particle, and its surface is with a lot of as-NH+、-COO-、-CONH2, the highly-hydrophilic such as-OH ,-SH polar group, make mud flco outer surface adsorb substantial amounts of hydrone, add the amount of cell adhesion water, also can form the moisture film that one layer of density is thicker on the surface of protein.In sum, adopt common kieselguhr as conditioner, the effect of compression double electric layer can only be played, and elimination of colloid stability cannot be made.By to diatomaceous surface modification, it is possible to while making full use of kieselguhr and the respective advantage of modifying agent, produce synergism also by reactions such as crosslinkings between the two, be greatly improved the dewatering of mud.
Technical solution of the present invention has the effect that
1, the present invention adopts modifying agent that kieselguhr is modified, make kieselguhr with a large amount of cationes, after adding mud with cationic diatomaceous sludge conditioner, protein can be made to deviate from from mud to filtrate, reduce the quantity of Sludge Surface hydrophilic group, reduce it adhere to water content and reduce mud hydrophilic, thus being conducive to improving the dewatering of mud；Meanwhile, kieselguhr utilizes specific surface area and the surface adsorption of himself, and de-steady colloid is very easily adsorbed on kieselguhr, accelerates compression colloid Effect of Electric Double Layer and electrically neutralization, and the removal effect of colloidal suspended substance in solution is good.
2, the present invention selects cetyl trimethylammonium bromide as modifying agent, cetyl trimethylammonium bromide is surfactant, as a kind of cheap daily chemicals, molecular structure has oleophylic (hydrophobic) base and two parts of hydrophilic (oleophobic) base concurrently, can be adsorbed on two-phase interface, arrange in unimolecule, the surface tension making solution reduces, relative to general flocculant, surfactant is bigger on the impact of interfacial property, therefore, surfactant-modified kieselguhr is adopted to join in activated sludge, air liquid interface tension force can be reduced, increase solid/liquid interfaces contact angle, reduce mud capillary pressure, promote extracellular polymeric (EPS) release on mud granule surface, thus reducing the moisture content of sludge filter cake.
3, the present invention adopts PAMC as modifying agent, polyacrylamide is a kind of linear macromolecule polymer, it it is one of kind of being most widely used in water-soluble high-molecular compound, it is used herein as effective flocculant, thickening agent and drag reducer etc., kieselguhr can be carried out fine must modifiying by few consumption, cost is low, and does not result in chemical contamination.
The second object of the present invention is in that the preparation method providing a kind of modification infusorial earth, and Details as Follows:
When adopting cetyl trimethylammonium bromide as modifying agent, specifically include following steps:
Step one: modifying agent is added mix homogeneously in the solvent of modifying agent weight 10-50 times and obtains modifier solution；
Step 2: the kieselguhr of corresponding proportion and described modifier solution are added in the thermostat water bath of 55 DEG C-65 DEG C and stir 0.5-24h with the mixing speed of 150-300r/min, obtain modified mixed solution；
Step 3: modified mixed solution is carried out sucking filtration and obtains sucking filtration product, puts into described sucking filtration product baking 1-2h in the baking oven that temperature is 100 DEG C-120 DEG C and obtains roast；Roast is put into roasting 1.0-2.0h in the Muffle furnace that temperature is 450 DEG C-550 DEG C and obtains calcining matter；Grind after calcining matter is cooled down and cross 100 mesh sieves, obtaining with cationic kieselguhr；
Described solvent is water.
In the method, roasting can make in kieselguhr two hydroxyls dehydrate in OH-Si-OH form O-Si-O, and substantially to drainage advantageously, and the method is not affecting on the basis of modified effect for this structure, easy and simple to handle, is more conducive to industrialized production.
When adopting PAMC as modifying agent, specifically include following steps:
Step I: diatomaceous acid activation, specifically: take the kieselguhr of corresponding proportioning and put into roasting 1-2h in the Muffle furnace that temperature is 450 DEG C-550 DEG C and obtain calcining matter；Take out to put into by calcining matter and drying basin is cooled to room temperature, then the hydrochloric acid solution that calcining matter addition concentration is 5%-10% after cooling will obtain the Ith mixture；Ith mixture is put into and the water-bath that temperature is 50 DEG C-65 DEG C stirs 2h with the mixing speed of 150-300r/min obtains the IIth mixture；Be centrifuged the IIth mixture separating, washing, sucking filtration and dry, described washing adopts distilled water wash, and is 5.8-6.2 to the pH of cleaning mixture；Described dry specifically: gained solid matter after sucking filtration is put into baking 1-2h in the baking oven that temperature is 100-120 DEG C, obtains the kieselguhr of acid activation；
Modifying agent is added mix homogeneously in the solvent of modifying agent weight 20-50 times and obtains modifier solution, the PAMC that described modifying agent adopts molecular weight to be 8,000,000-1,200 ten thousand；
Step II: the kieselguhr of step I gained acid activation and modifier solution are put into and stirs 0.5-24h with the mixing speed of 150-300r/min in the thermostat water bath that temperature is 50 DEG C-65 DEG C and obtain stirring thing；Take solid matter after stirring thing is carried out sucking filtration to be partially placed in the baking oven that temperature is 100 DEG C-120 DEG C and toast 1-2h；It is ground after being cooled to room temperature and crosses 100 mesh sieves, obtaining with cationic kieselguhr；
Described solvent is water.
The inventive method modifiies after first being activated by kieselguhr again, to improve its pore structure and surface activity, is more beneficial for PAMC in connection, thus being greatly improved the disposal ability of mud.
The present invention the 3rd purpose is in that to provide a kind of sludge conditioner, specifically includes above-mentioned with cationic kieselguhr.There is the technique effect that cost is low, institute's expense is few, pollution-free and sludge dewatering is effective.
The fourth object of the present invention is in that a kind of method providing Treatment of Sludge, specifically includes following steps:
Above-mentioned sludge conditioner and mud being mixed, stir 5-30min with the mixing speed of 150-300r/min, then pass through vacuum filtration and can obtain sludge filter cake, wherein, the weight of described sludge conditioner is the 0.2%-0.6% of the weight of mud.
In above technical scheme preferably, moisture content >=90% of described mud.
In above technical scheme preferably, described agitator is vacuum hydroextractor, its internal maintenance constant voltage, and its force value is 0.3Mpa-0.8Mpa.
In above technical scheme preferably, moisture content≤70% of described sludge filter cake.
Adopting the method for sludge treatment of the present invention, have the effect that (1) equipment needed thereby is simplified, can be completed by a vacuum hydroextractor with mixing component, equipment investment is little；(2) sludge treatment technique is simplified and technological parameter is easily controlled；(3) needed for, sludge conditioner consumption is little, conservation cost.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.Below with reference to specific embodiment, the present invention is further detailed explanation.
Detailed description of the invention
Below in conjunction with embodiment, technical solution of the present invention is described in detail, but the multitude of different ways that the present invention can limit according to claim and cover is implemented.
Embodiment 1-embodiment 6:
A kind of sludge conditioner, including with cationic kieselguhr, referring to table 1 with cationic diatomaceous raw material in the component that parts by weight comprise described in preparation, described modifying agent is cetyl trimethylammonium bromide (CTAB), and described solvent is water.
Described comprise the following steps with cationic diatomaceous preparation method:
Step one: modifying agent is added mix homogeneously in the solvent of modifying agent weight 10-50 times and obtains modifier solution (wherein, embodiment 1-embodiment 6 takes 12.5 times, 25 times, 30 times, 40 times, 45 times and 50 times respectively)；
Step 2: the kieselguhr of corresponding proportion and described modifier solution are added in the thermostat water bath of 55 DEG C-65 DEG C and stir t1 hour with the mixing speed of 150-300r/min, obtain modified mixed solution；
Step 3: modified mixed solution is carried out sucking filtration and obtains sucking filtration product, puts into described sucking filtration product baking 1-2h in the baking oven that temperature is 100 DEG C-120 DEG C and obtains roast；Roast is put into roasting in the Muffle furnace that temperature is T DEG C and within t2 hour, obtains calcining matter；Grind after calcining matter is cooled down and cross 100 mesh sieves, obtaining with cationic kieselguhr.
Table 1 embodiment 1-embodiment 6 Raw composition and some processes parameter
| Sequence number parameter | Kieselguhr/part | CTAB/ part | t1/h | t2/h | T/℃ |
| Embodiment 1 | 99 | 1 | 0.5 | 1.0 | 500 |
| Embodiment 2 | 98 | 2 | 3 | 1.0 | 450 |
| Embodiment 3 | 95 | 5 | 12 | 1.5 | 550 |
| Embodiment 4 | 98 | 2 | 6 | 1.0 | 500 |
| Embodiment 5 | 98 | 2 | 12 | 1.5 | 450 |
| Embodiment 6 | 95 | 5 | 24 | 2.0 | 550 |
Embodiment 7-embodiment 10:
A kind of sludge conditioner, including with cationic kieselguhr, refers to table 2 with cationic diatomaceous raw material in the component that parts by weight comprise described in preparation, and described modifying agent is PAMC (CPAM), and described solvent is water.
Described comprise the following steps with cationic diatomaceous preparation method:
Step I: diatomaceous acid activation, specifically: take the kieselguhr of corresponding proportioning and put into roasting in the Muffle furnace that temperature is T DEG C and obtain calcining matter in t2 hour；Take out to put into by calcining matter and drying basin is cooled to room temperature, then the hydrochloric acid solution that calcining matter addition concentration is 5%-10% after cooling will obtain the Ith mixture；Ith mixture is put into and the water-bath that temperature is 50 DEG C-65 DEG C stirs 2h with the mixing speed of 150-300r/min obtains the IIth mixture；Be centrifuged the IIth mixture separating, washing, sucking filtration and dry, described washing adopts distilled water wash, and is 5.8-6.2 to the pH of cleaning mixture；Described dry specifically: gained solid matter after sucking filtration is put into baking 1-2h in the baking oven that temperature is 100-120 DEG C, obtains the kieselguhr of acid activation；
Modifying agent is added mix homogeneously in the solvent of modifying agent weight 20-50 times and obtains modifier solution (wherein, embodiment 7-embodiment 10 takes 20 times, 30 times, 40 times and 50 times respectively), the PAMC that described modifying agent adopts molecular weight to be 8,000,000-1,200 ten thousand；
Step II: put into the kieselguhr of step I gained acid activation and modifier solution to stir with the mixing speed of 150-300r/min in the thermostat water bath that temperature is 50 DEG C-65 DEG C and obtain stirring thing in t1 hour；Take solid matter after stirring thing is carried out sucking filtration to be partially placed in the baking oven that temperature is 100 DEG C-120 DEG C and toast 1-2h；It is ground after being cooled to room temperature and crosses 100 mesh sieves, obtaining with cationic kieselguhr.
Table 2 embodiment 7-embodiment 10 Raw composition and some processes parameter
| Sequence number parameter | Kieselguhr/part | CPAM/ part | CPAM molecular weight/ten thousand | t1/h | t2/h | T/℃ |
| Embodiment 7 | 99 | 2 | 1100 | 2.0 | 1.0 | 500 |
| Embodiment 8 | 98 | 2 | 1200 | 2.0 | 1.5 | 450 |
| Embodiment 9 | 99 | 1 | 800 | 2.0 | 1.8 | 550 |
| Embodiment 10 | 98 | 1 | 1000 | 2.0 | 2.0 | 500 |
The sludge conditioner (being respectively labeled as sample 1-sample 10) of Application Example 1-embodiment 10 carries out Treatment of Sludge, and detailed process is as follows:
The method of Treatment of Sludge, comprises the following steps:
The sludge conditioner (sample 1-sample 10) of sufficiently cool (ambient temperatare puts more than one day) and mud (moisture content of mud is 93-97%) are mixed, it is 0.2-0.6% that sludge conditioner addition accounts for the weight/mass percentage composition of mud dry weight, stir 5-30 minute with the mixing speed of 150-300r/min, standing allows it settle, primary sludge volume number is remembered every 30 seconds, until sludge volume is constant, the length of sedimentation time can directly judge that the settling property of mud is good and bad；Pour specific resistance measurement device again into and be covered with in the buchner funnel of quantitative filter paper, carry out level pressure sucking filtration, record the filtrate volume of different sucking filtration time with the intervals of 10 seconds, until filtrate cake bursting；The filter cake being retained down on filter paper in buchner funnel is weighed after terminating by sucking filtration, then dries to constant weight at 103～105 DEG C, weighs, filtrate sampling and measuring protein concentration and polysaccharide concentration.Refer to table 3.
Mud is specifically directly carried out the process of said method by comparative example 1；Comparative example 2 is to adopt the kieselguhr of 6% to add the process carrying out said method in mud；Comparative example 3 is to adopt the cetyl trimethylammonium bromide (CTAB) of 6% to add the process carrying out said method in mud；That comparative example 4 is employing 0.2% and that molecular weight is 1000w PAMC (CPAM) adds the process carrying out said method in mud.
The proportioning of table 3 sludge handling process, technological parameter and Treatment of Sludge situation
By table 3 it can be seen that adopt the sludge conditioner of the present invention moisture content in mud can be reduced to less than 70%, in filtrate, the concentration of protein and the concentration of polysaccharide are greatly increased, and sludge dewatering is effective；The consumption of modifying agent and sludge conditioner is all very little, and cost is low and pollutes little.From sample 3 it can be seen that when dosage is too high (being 0.8% and 1.0% and 0.6% compare by dosage), sedimentation and the dewatering of mud do not improve significantly；When dosage is too low (being 0.1% and 0.2% compare by dosage), sedimentation and the dewatering of mud are substantially reduced, therefore, the dosage of conditioner is controlled at 0.2%-0.6%, from more scientific the angle controlling cost and Treatment of Sludge effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a modification infusorial earth, it is characterised in that: include with cationic kieselguhr, to be prepared by the kieselguhr of modifier modification 95-99 part of 1-5 part with cationic kieselguhr parts by weight Suo Shu；
Described modifying agent is cetyl trimethylammonium bromide or PAMC.
2. modification infusorial earth according to claim 1, it is characterised in that described kieselguhr includes following component by weight percentage: silicon dioxide 70-85%, aluminium sesquioxide 10-15%, calcium oxide 5-10% and iron sesquioxide 0-5%.
3. the preparation method of the modification infusorial earth as described in claim 1-2 any one, it is characterised in that: comprise the following steps:
Step one: modifying agent is added mix homogeneously in the solvent of modifying agent weight 10-50 times and obtains modifier solution；
Step 2: the kieselguhr of corresponding proportion and step one gained modifier solution are added in the thermostat water bath of 55 DEG C-65 DEG C and stir 0.5-24h with the mixing speed of 150-300r/min, obtain modified mixed solution；
Step 3: modified for step 2 gained mixed solution is carried out sucking filtration and obtains sucking filtration product, puts into described sucking filtration product baking 1-2h in the baking oven that temperature is 100 DEG C-120 DEG C and obtains roast；Roast is put into roasting 1.0-2.0h in the Muffle furnace that temperature is 450 DEG C-550 DEG C and obtains calcining matter；Grind after calcining matter is cooled down and cross 100 mesh sieves, obtaining with cationic kieselguhr.
4. the preparation method of modification infusorial earth according to claim 3, it is characterised in that: described modifying agent is cetyl trimethylammonium bromide.
5. the preparation method of the modification infusorial earth as described in claim 1-2 any one, it is characterised in that comprise the following steps:
Step I: diatomaceous acid activation, specifically: take the kieselguhr of corresponding proportioning and put into roasting 1-2h in the Muffle furnace that temperature is 450 DEG C-550 DEG C and obtain calcining matter；Take out to put into by calcining matter and drying basin is cooled to room temperature, then the hydrochloric acid solution that calcining matter addition concentration is 5%-10% after cooling will obtain the Ith mixture；Ith mixture is put into and the water-bath that temperature is 50 DEG C-65 DEG C stirs 2h with the mixing speed of 150-300r/min obtains the IIth mixture；Be centrifuged the IIth mixture separating, washing, sucking filtration and dry, described washing adopts distilled water wash, and is 5.8-6.2 to the pH of cleaning mixture；Described dry specifically: gained solid matter after sucking filtration is put into baking 1-2h in the baking oven that temperature is 100-120 DEG C, obtains the kieselguhr of acid activation；
Modifying agent is added mix homogeneously in the solvent of modifying agent weight 20-50 times and obtains modifier solution；
Step II: the kieselguhr of step I gained acid activation and modifier solution are put into and stirs 0.5-24h with the mixing speed of 150-300r/min in the thermostat water bath that temperature is 50 DEG C-65 DEG C and obtain stirring thing；Take solid matter after stirring thing is carried out sucking filtration to be partially placed in the baking oven that temperature is 100 DEG C-120 DEG C and toast 1-2h；It is ground after being cooled to room temperature and crosses 100 mesh sieves, obtaining with cationic kieselguhr.
6. the preparation method of modification infusorial earth according to claim 5, it is characterised in that: the PAMC that described modifying agent adopts molecular weight to be 8,000,000-1,200 ten thousand.
7. a sludge conditioner, it is characterised in that include as described in claim 1-4 any one with cationic kieselguhr.
8. the method for a Treatment of Sludge, it is characterised in that: comprise the following steps:
Sludge conditioner as claimed in claim 7 and mud being mixed, stir 5-30min with the mixing speed of 150-300r/min, then pass through vacuum filtration and can obtain sludge filter cake, wherein, the weight of described sludge conditioner is the 0.2%-0.6% of the weight of mud.
9. the method for Treatment of Sludge according to claim 7, it is characterised in that: moisture content >=90% of described mud；Moisture content≤70% of described sludge filter cake.
10. the method for Treatment of Sludge according to claim 7, it is characterised in that: described agitator is vacuum hydroextractor, its internal maintenance constant voltage, and its force value is 0.3Mpa-0.8Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065046.0A CN105731760A (en) | 2016-01-29 | 2016-01-29 | Modified diatomite and preparation method thereof, sludge conditioner and sludge treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065046.0A CN105731760A (en) | 2016-01-29 | 2016-01-29 | Modified diatomite and preparation method thereof, sludge conditioner and sludge treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105731760A true CN105731760A (en) | 2016-07-06 |
Family
ID=56247965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610065046.0A Pending CN105731760A (en) | 2016-01-29 | 2016-01-29 | Modified diatomite and preparation method thereof, sludge conditioner and sludge treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105731760A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089786A (en) * | 2017-05-05 | 2017-08-25 | 昆明理工大学 | A kind of method that utilization aluminium ash improves municipal sludge dehydrating effect |
| CN107200462A (en) * | 2017-05-05 | 2017-09-26 | 昆明理工大学 | A kind of method for improving sludge dewatering effect |
| CN107674531A (en) * | 2017-10-31 | 2018-02-09 | 倪佐才 | A kind of environmental protection coating material for timber and preparation method thereof |
| CN107913712A (en) * | 2017-12-08 | 2018-04-17 | 中山大学 | A kind of titanium dioxide/modification infusorial earth composite material, film and its preparation method and application |
| CN108442177A (en) * | 2018-04-14 | 2018-08-24 | 福建省大投科技有限公司 | A kind of the stone fibrous paper and processing method of low-density |
| CN108947201A (en) * | 2018-08-31 | 2018-12-07 | 昆明理工大学 | A kind of sludge treating agent and application |
| CN109105905A (en) * | 2018-09-25 | 2019-01-01 | 济南知尔医药科技有限公司 | A kind of health-care polypeptide product and preparation method thereof |
| CN111514847A (en) * | 2020-05-15 | 2020-08-11 | 辽宁科隆精细化工股份有限公司 | Preparation method of modified diatomite and application of modified diatomite in salt-containing wastewater treatment |
| CN112646095A (en) * | 2020-12-22 | 2021-04-13 | 嘉兴学院 | Dopamine-modified diatomite-adsorbed heavy metal hydrogel and preparation method and application thereof |
| CN113248095A (en) * | 2021-05-28 | 2021-08-13 | 山东利废厚生环保科技有限公司 | Ferric salt sludge treatment process and treatment system |
| CN113371976A (en) * | 2021-06-08 | 2021-09-10 | 中交上海航道勘察设计研究院有限公司 | Sludge dewatering curing agent and resource utilization method |
| CN113684675A (en) * | 2021-09-16 | 2021-11-23 | 义乌市艾丫贸易有限公司 | Preparation method of bleaching stabilizer for textile |
| CN114873901A (en) * | 2022-05-07 | 2022-08-09 | 广州诺冠环保科技有限公司 | Preparation method of novel sludge conditioner applied to plate-and-frame filter press |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041478A (en) * | 2007-04-24 | 2007-09-26 | 浙江三鼎科技有限公司 | Preparation method for organic polymer-diatomaceous soil composite coagulating agent |
| EP1855996A1 (en) * | 2005-02-15 | 2007-11-21 | Georgia Technology Research Corporation | Method for improving the consolidation and dewatering of suspended particulate matter |
| CN102992566A (en) * | 2012-12-21 | 2013-03-27 | 湖南清和污泥资源利用有限公司 | Method for disposing sludge |
-
2016
- 2016-01-29 CN CN201610065046.0A patent/CN105731760A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1855996A1 (en) * | 2005-02-15 | 2007-11-21 | Georgia Technology Research Corporation | Method for improving the consolidation and dewatering of suspended particulate matter |
| CN101041478A (en) * | 2007-04-24 | 2007-09-26 | 浙江三鼎科技有限公司 | Preparation method for organic polymer-diatomaceous soil composite coagulating agent |
| CN102992566A (en) * | 2012-12-21 | 2013-03-27 | 湖南清和污泥资源利用有限公司 | Method for disposing sludge |
Non-Patent Citations (3)
| Title |
|---|
| 张春光等: "《聚丙烯酰胺泥浆的成分和性能的研究》", 30 June 1981, 地质出版社 * |
| 李敏: "改性硅藻土对污泥脱水性能的研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 罗道成: "改性硅藻土对废水中Pb2+、Cu2+、Zn2+吸附性能的研究", 《中国矿业》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089786B (en) * | 2017-05-05 | 2020-10-27 | 昆明理工大学 | Method for improving municipal sludge dewatering effect by using aluminum ash |
| CN107200462A (en) * | 2017-05-05 | 2017-09-26 | 昆明理工大学 | A kind of method for improving sludge dewatering effect |
| CN107089786A (en) * | 2017-05-05 | 2017-08-25 | 昆明理工大学 | A kind of method that utilization aluminium ash improves municipal sludge dehydrating effect |
| CN107674531A (en) * | 2017-10-31 | 2018-02-09 | 倪佐才 | A kind of environmental protection coating material for timber and preparation method thereof |
| CN107913712A (en) * | 2017-12-08 | 2018-04-17 | 中山大学 | A kind of titanium dioxide/modification infusorial earth composite material, film and its preparation method and application |
| CN108442177A (en) * | 2018-04-14 | 2018-08-24 | 福建省大投科技有限公司 | A kind of the stone fibrous paper and processing method of low-density |
| CN108947201A (en) * | 2018-08-31 | 2018-12-07 | 昆明理工大学 | A kind of sludge treating agent and application |
| CN109105905A (en) * | 2018-09-25 | 2019-01-01 | 济南知尔医药科技有限公司 | A kind of health-care polypeptide product and preparation method thereof |
| CN109105905B (en) * | 2018-09-25 | 2021-08-24 | 山东国和堂制药有限公司 | Polypeptide health product and preparation method thereof |
| CN111514847A (en) * | 2020-05-15 | 2020-08-11 | 辽宁科隆精细化工股份有限公司 | Preparation method of modified diatomite and application of modified diatomite in salt-containing wastewater treatment |
| CN111514847B (en) * | 2020-05-15 | 2023-09-08 | 辽宁科隆精细化工股份有限公司 | Preparation method of modified diatomite and application of modified diatomite in treatment of saline wastewater |
| CN112646095A (en) * | 2020-12-22 | 2021-04-13 | 嘉兴学院 | Dopamine-modified diatomite-adsorbed heavy metal hydrogel and preparation method and application thereof |
| CN113248095A (en) * | 2021-05-28 | 2021-08-13 | 山东利废厚生环保科技有限公司 | Ferric salt sludge treatment process and treatment system |
| CN113371976A (en) * | 2021-06-08 | 2021-09-10 | 中交上海航道勘察设计研究院有限公司 | Sludge dewatering curing agent and resource utilization method |
| CN113371976B (en) * | 2021-06-08 | 2024-02-02 | 中交上海航道勘察设计研究院有限公司 | Sludge dewatering curing agent and recycling method |
| CN113684675A (en) * | 2021-09-16 | 2021-11-23 | 义乌市艾丫贸易有限公司 | Preparation method of bleaching stabilizer for textile |
| CN114873901A (en) * | 2022-05-07 | 2022-08-09 | 广州诺冠环保科技有限公司 | Preparation method of novel sludge conditioner applied to plate-and-frame filter press |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105731760A (en) | Modified diatomite and preparation method thereof, sludge conditioner and sludge treatment method | |
| CN112657465B (en) | Preparation method of magnetic biochar and method for treating tailing wastewater | |
| CN101695649B (en) | Application of modified flyash in urban sludge conditioning | |
| CN104003604A (en) | Sludge treatment additive and use method of sludge treatment additive | |
| CN109876780A (en) | A kind of dephosphorization adsorbent and preparation method thereof | |
| CN110813261A (en) | Preparation method of magnetic chitosan/montmorillonite/humic acid composite microcapsule adsorption material for wastewater treatment | |
| CN108889273A (en) | A kind of preparation method and applications of composite adsorbing material | |
| CN114931929A (en) | Iron-based sludge/plastic composite biochar adsorbing material, and preparation method and application thereof | |
| CN112939417B (en) | Activated sludge conditioner for wastewater biochemical treatment and preparation method thereof | |
| CN106944017A (en) | Heavy metal removing technique in efficient water based on gelatin-compounded adsorbent | |
| CN108191181B (en) | A kind of urban river sediment cleanser and its production method | |
| CN113820187A (en) | Passivation experiment method for applying attapulgite-rice straw composite material to heavy metal contaminated soil | |
| CN111995061A (en) | Composite biological flocculant and preparation method thereof | |
| Hassan et al. | Removal of boron from industrial wastewater by chitosan via chemical precipitation | |
| WO2009071878A1 (en) | Production of volatile fatty acids by means of mesophilic fermentation of sludge | |
| CN114733483A (en) | Activated coke for phenol-ammonia wastewater treatment and preparation method thereof | |
| CN115259626B (en) | Sludge conditioner and preparation method thereof | |
| CN113332971A (en) | Nano ZnO/g-C3N4Application of composite catalyst as algae inhibitor and preparation method thereof | |
| CN112429818A (en) | Electrolysis stone filter material for sewage dephosphorization and preparation method and application thereof | |
| CN110368916A (en) | One heavy metal species composite adsorbing material and the preparation method and application thereof | |
| CN108160045A (en) | Erie's stone composite material and its preparation method and application | |
| CN115888661B (en) | Sponge and iron oxide water-based paint compound and preparation and application methods thereof | |
| CN114506997B (en) | Preparation method of granular sludge for deep dehydration of sludge of high-pressure diaphragm plate-and-frame filter press | |
| CN114560542B (en) | Method for preparing in-situ iron-loaded biochar based on thermal cracking of magnetic coagulation algae-containing flocs and application of method | |
| CN111285480B (en) | Preparation method of microbial agent for treating soil remediation process wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
|
| RJ01 | Rejection of invention patent application after publication |