CN105217905A - The combined modified flyash of gamma-rays cracks the method for excess sludge - Google Patents
The combined modified flyash of gamma-rays cracks the method for excess sludge Download PDFInfo
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- CN105217905A CN105217905A CN201510641965.3A CN201510641965A CN105217905A CN 105217905 A CN105217905 A CN 105217905A CN 201510641965 A CN201510641965 A CN 201510641965A CN 105217905 A CN105217905 A CN 105217905A
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- 239000010802 sludge Substances 0.000 title claims abstract description 108
- 239000010881 fly ash Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000010883 coal ash Substances 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 63
- 238000003756 stirring Methods 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 21
- 238000005336 cracking Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 14
- 230000009965 odorless effect Effects 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 11
- 238000001514 detection method Methods 0.000 description 7
- 239000007791 liquid phase Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The present invention relates to the method that the combined modified flyash of a kind of gamma-rays cracks excess sludge, comprise the following steps: first in excess sludge, add modified coal ash, adding proportion is the modified coal ash that every 100mL excess sludge adds 2 ~ 10g, mixes and obtains sludge slurry; With gamma-rays, radiation treatment is carried out to sludge slurry, crack excess sludge.The applying modified flyash of the present invention is as cracking agent, and achieving it turns waste into wealth, and decreases environmental pollution, solves the process handling problems of flyash, effectively reduces the processing cost of excess sludge; Cracking in process, gamma-rays has killed the microorganism in excess sludge effectively, improves mud cell greatly and cracks speed, what effectively save excess sludge cracks the time, enhance processing efficiency, disintegration effect is remarkable, the mud odorless after the present invention cracks.
Description
[technical field]
The invention belongs to field of sludge treatment, relate to the method that the combined modified flyash of a kind of gamma-rays cracks excess sludge.
[background technology]
Excess sludge is the cotton-shaped mud pellet of a kind of water ratio very high (>=97%) produced in sewage treatment process, and its process is a global difficult problem always, mishandlingly very easily causes secondary environmental pollution.
In excess sludge, most of organism is present in microorganism cells, and semirigid cell walls is a bio-refractory inert substance, plays a part Cell protection, more difficultly cracks.Take suitable to crack means, effectively can control organic Transport And Transformation direction in mud born of the same parents in the process of cracking, the object of through excess sludge " innoxious, resource utilization ".If but control device lost efficacy, and will cause serious consequence to environment.Given this, the many scholars of China are studied excess sludge.As utilized irradiation technique process excess sludge, establish the kinetic model describing fermentation and hydrogen production process and irradiation impact, Wang Bo, China Environmental Science, 33,12; Utilize irradiation technique and soda acid to combine to strengthen excess sludge and crack, adopt the Infrared spectroscopy impact of different radiation parameter on EPS molecular structure, the scanning electron microscope observation figure of EPS before and after last binding activities sludge treatment, disclose gamma-radiation irradiation combined acid oxygenation pretreatment to the influencing mechanism of EPS, Luo Zhiping, Agriculture in Hunan science, 23; Utilize ultrasonic wave-calcium hydroxide to combine and crack excess sludge, adopt single factor test and response surface design analysis to show that best excess sludge cracks condition, Zhou Lei, Environmental science and technology, 2014,37,9.The above-mentioned breaking techniques about excess sludge all has good effect, excess sludge dewatering after cracking obviously improves, but these technology or to there is running cost high or there is the secondary pollution of adding medicament or there is the problems such as the time of cracking is long, cause more difficult industrial application, and crack rear water ratio all the time more than 60%.
Flyash, power plant's waste, now in the quantity discharged of China more than 100,000,000 t/, containing a large amount of beneficiating ingredient in it, but current utilization ratio is very micro-; For irradiation technique, except being widely used in food-processing aspect, food is carried out, except sterilization Shelf-life, environmentally also having extensive application at present, as the sterilization of sewage, mud, this technology not only cost is low, effective, safe and reliable, and be convenient to industrial application.
[summary of the invention]
The object of the invention is to overcome the defect existed in prior art, there is provided the combined modified flyash of a kind of gamma-rays to crack the method for excess sludge, there is cost low, the feature of the good and non-secondary pollution of disintegration effect, and the effect of sterilization, desinsection can be played, crack rear sludge dewatering effective.
Technical scheme of the present invention is:
Comprise the following steps:
(1) in excess sludge, add modified coal ash, adding proportion is the modified coal ash that every 100mL excess sludge adds 2 ~ 10g, mixes and obtains sludge slurry;
(2) with gamma-rays, radiation treatment is carried out to sludge slurry, crack excess sludge.
Further, modified coal ash is got by following steps preparation: by flyash and sodium hydroxide solution mixing, wherein the quality mol ratio of flyash and sodium hydroxide is 1g:(4 ~ 20) mmol, 3 ~ 5 hours are left standstill after stirring, then dry and grind, obtaining modified coal ash.
Further, the concentration of sodium hydroxide solution is 4mol/L.
Further, particle diameter is ground to after oven dry at below 2mm.
Further, the irradiation dose in radiation treatment is 1KGy ~ 10KGy.
Further, adopt in radiation treatment
60co gamma-rays.
Further, the time of radiation treatment is 10 ~ 60min.
The present invention relative to existing technologies, has following useful technique effect:
The invention provides the method that the combined modified flyash of a kind of gamma-rays cracks excess sludge, gamma-rays has simple to operate, the advantage such as efficiency is high, clean environment firendly; Applying modified flyash is as cracking agent simultaneously, and achieving it turns waste into wealth, and decreases environmental pollution, effectively solves the process handling problems of flyash; Obtained modified coal ash is used for the process of excess sludge, achieves the object of environment protection by the thinking of the treatment of wastes with processes of wastes against one another, effectively reduce the processing cost of excess sludge.After cracking, modified coal ash composition tends towards stability, and can jointly prepare building materials use with body refuse, so then avoids the subsequent disposal of adding chemical agent and the secondary pollution that may exist; Cracking in process, gamma-ray introducing, effectively kill the microorganism in excess sludge, improve mud cell greatly and crack speed, what effectively save excess sludge cracks the time, enhance processing efficiency, and disintegration effect is very remarkable, crack rear water ratio only 53.9%, the rate of cracking can reach 25.36%, and the relatively current rate that cracks is about 22% ± 1, there is larger lifting, after breaching existing sludge disintegration, water ratio is difficult to the bottleneck of being down to less than 60%, just sedimentation occurs in 25min, and settling property obtains and improves admirably; And the present invention crack after mud odorless; Meanwhile, this technological operation convenience, environmental protection, safe and reliable, be convenient to industrialization promotion.The successful of the inventive method, the innoxious minimizing of flyash, excess sludge can be realized, the excess sludge supernatant liquor obtained contains the organic matters such as a large amount of protein, can be used in developing derived product, the sludge residue obtained is after gamma-ray irradiation, and the aseptic virus-free building materials that can relievedly do utilize.
Further, the present invention carries out modification by adopting sodium hydroxide to flyash, have activated sial isoreactivity composition in flyash, and the introducing of basic group simultaneously is more conducive to cracking of excess sludge.
[embodiment]
Preparation method of the present invention carries out as follows:
1) compound concentration 4mol/L sodium hydroxide solution, be 1:(1 ~ 5 according to solid-to-liquid ratio (g/mL)) ratio, flyash is mixed with sodium hydroxide solution, by calculating, the quality mol ratio that can obtain flyash and sodium hydroxide is 1g:(4 ~ 20) mmol, fully stir under room temperature, leave standstill 3 ~ 5 hours, 100 DEG C oven dry, be milled to particle diameter at below 2mm, obtain modified coal ash.
2) get 100mL excess sludge, add modified coal ash wherein, the interpolation scope of modified coal ash is 2 ~ 10g, inserts in 200mL reactor, fully stirs, obtained sludge slurry.
3) with gamma-rays, Uniform Irradiation is carried out to the reactor that sludge slurry is housed, within the scope of 1 ~ 10kGy, regulate irradiation dose, then irradiation 10 ~ 60min under room temperature.React rear taking-up reactor, by the mixture after irradiation in the centrifugal 20min of 2500r/min, detection has been carried out respectively to solid liquid phase and analyzes.
First by flyash modified in making method of the present invention, then mix with excess sludge, under gamma-rays effect, excess sludge is cracked.Gamma-rays in the present invention can adopt
60co gamma-rays, if equipment allows, also can adopt other gamma-rays.The present invention has the features such as novelty, uniqueness, efficiency is high, safe and reliable.
Describe the present invention below by embodiment.
Embodiment 1
(1) sampling of flyash, excess sludge:
Flyash takes from power plant; Excess sludge takes from secondary sedimentation tank of sewage treatment work mud, and excess sludge water ratio is about 98%-99%, is placed in 4 DEG C of constant temperature and preserves, stand-by.
(2) modified coal ash cracks the preparation of agent:
Compound concentration 4mol/L sodium hydroxide solution, the ratio being 1:1 according to solid-to-liquid ratio (g/mL), mixes flyash with sodium hydroxide solution, fully stirs under room temperature, leaves standstill 3 hours, 100 DEG C oven dry, is milled to particle diameter at below 2mm, for subsequent use.
(3) reaction is cracked:
Get 100mL excess sludge, add the modified coal ash of 2g wherein, insert in 200mL reactor, fully stir, obtained sludge slurry.With gamma-rays, Uniform Irradiation is carried out to the reactor that excess sludge and modified coal ash are housed, adopt the irradiation dose of 1kGy, then irradiation 10min under room temperature.React rear taking-up reactor, by excess sludge mixture in the centrifugal 20min of 2500r/min, detection has been carried out respectively to solid liquid phase and analyzes.
The sample of failing to analyze the same day must be placed in 4 DEG C of constant temperature and preserve, and all projects to be analyzed of refrigeration sample permit of no delay and to carry out more than 2 days.
(4) disintegration effect detects and analyzes:
SCOD adopts potassium bichromate reflux cooling to measure, and the rate that cracks of excess sludge calculates according to following formula:
In formula: SCOD
aftersolvability COD after representing process in excess sludge measures (chemical oxygen demand (COD)); TCOD
0represent the amount of total COD in excess sludge; SCOD
0represent the amount of solvability COD in the front excess sludge of process.
The mensuration of settling time: measure 50mL mud sample to be measured in the beaker of 150mL with graduated cylinder, rapid stirring 5 minutes, leaves standstill, the record settling time.
The mensuration of water ratio: accurately take appropriate mud sample in beaker, in the baking oven of 105 (± 2) DEG C, dry 3h, takes out and puts into moisture eliminator and cool, and weighs after half an hour.Repeat above operation, until front and back twice are of poor quality be no more than 0.002g, be constant weight.Be calculated as follows:
In formula: W-beaker quality, g;
W
1before-oven dry, mud sample adds beaker quality, g;
W
2after-oven dry, mud sample adds beaker quality, g.
The disintegration effect of excess sludge is in table 1.
Table 1 excess sludge disintegration effect
From table 1 data, the method is very remarkable to the disintegration effect of excess sludge, the mud odorless after cracking.
Embodiment 2
(1) sampling of flyash, excess sludge is with embodiment 1.
(2) modified coal ash cracks the preparation of agent:
Compound concentration 4mol/L sodium hydroxide solution, according to the ratio that solid-to-liquid ratio (g/mL) is 1:2, flyash is mixed with sodium hydroxide solution, fully stirs under room temperature, leave standstill 3.5 hours, 100 DEG C oven dry, be milled to particle diameter at below 2mm, obtain modified coal ash;
(3) reaction is cracked:
Get 100mL excess sludge, add 4g modified coal ash wherein, insert in 200mL reactor, fully stir, obtained sludge slurry.With
60co gamma-rays carries out Uniform Irradiation to the reactor that excess sludge and modified coal ash are housed, and adopts the irradiation dose of 3kGy, then irradiation 20min under room temperature.React rear taking-up reactor, by excess sludge mixture in the centrifugal 20min of 2500r/min, detection has been carried out to solid liquid phase and analyzes.
Disintegration effect detects to be analyzed with embodiment 1.Disintegration effect is in table 2.
Table 2 excess sludge disintegration effect
From table 2 data, the method is very remarkable to the disintegration effect of excess sludge, the mud odorless after cracking.
Embodiment 3
(1) sampling of flyash, excess sludge is with embodiment 1.
(2) modified coal ash cracks the preparation of agent:
Compound concentration 4mol/L sodium hydroxide solution, according to the ratio that solid-to-liquid ratio (g/mL) is 1:3, flyash is mixed with sodium hydroxide solution, fully stirs under room temperature, leave standstill 4 hours, 100 DEG C oven dry, be milled to particle diameter at below 2mm, obtain modified coal ash;
(3) reaction is cracked:
Get 100mL excess sludge, add 6g modified coal ash wherein, insert in 200mL reactor, fully stir, obtained sludge slurry.With gamma-rays, Uniform Irradiation is carried out to the reactor that excess sludge and modified coal ash are housed, adopt the irradiation dose of 5kGy, then irradiation 30min under room temperature.React rear taking-up reactor, by excess sludge mixture in the centrifugal 20min of 2500r/min, detection has been carried out to solid liquid phase and analyzes.
Disintegration effect detects to be analyzed with embodiment 1.Disintegration effect is in table 3.
Table 3 excess sludge disintegration effect
From table 3 data, the method is very remarkable to the disintegration effect of excess sludge, the mud odorless after cracking.
Embodiment 4
The sampling of flyash, excess sludge is with embodiment 1; Compound concentration 4mol/L sodium hydroxide solution, according to the ratio that solid-to-liquid ratio (g/mL) is 1:4, flyash is mixed with sodium hydroxide solution, fully stirs under room temperature, leave standstill 4.5 hours, 100 DEG C oven dry, be milled to particle diameter at below 2mm, obtain modified coal ash; Get 100mL excess sludge, the addition 8g of modified coal ash, inserts in 200mL reactor, fully stirs, obtained sludge slurry.With
60co gamma-rays carries out Uniform Irradiation to the reactor that excess sludge and modified coal ash are housed, and adopts the irradiation dose of 7kGy, then irradiation 45min under room temperature.Reacted rear taking-up reactor, by excess sludge mixture in the centrifugal 20min of 2500r/min, carry out detection to solid liquid phase and analyze, the rate of cracking is 24.95%.The method is very remarkable to the disintegration effect of excess sludge, the mud odorless after cracking.
Embodiment 5
The sampling of flyash, excess sludge is with embodiment 1; Compound concentration 4mol/L sodium hydroxide solution, according to the ratio that solid-to-liquid ratio (g/mL) is 1:5, flyash is mixed with sodium hydroxide solution, fully stirs under room temperature, leave standstill 5 hours, 100 DEG C oven dry, be milled to particle diameter at below 2mm, obtain modified coal ash; Get 100mL excess sludge, the addition 10g of modified coal ash, inserts in 200mL reactor, fully stirs, obtained sludge slurry.With
60co gamma-rays carries out Uniform Irradiation to the reactor that excess sludge and modified coal ash are housed, and adopts the irradiation dose of 10kGy, then irradiation 60min under room temperature.Reacted rear taking-up reactor, by excess sludge mixture in the centrifugal 20min of 2500r/min, carry out detection to solid liquid phase and analyze, the rate of cracking is 25.12%.The method is very remarkable to the disintegration effect of excess sludge, the mud odorless after cracking.
Comparative example 1
The sampling of flyash, excess sludge is with embodiment 1; The direct 100 DEG C of oven dry of original fly ash, be milled to particle diameter at below 2mm, for subsequent use; Other operations with embodiment 1, that is: get 100mL excess sludge, add the original fly ash after 2g grinding wherein, insert in 200mL reactor, fully stir, obtained contrast sludge slurry.With gamma-rays, Uniform Irradiation is carried out to the reactor that contrast sludge slurry is housed, adopt the irradiation dose of 1kGy, then irradiation 10min under room temperature.Reacted rear taking-up reactor, by excess sludge mixture in the centrifugal 20min of 2500r/min, carry out detection to solid liquid phase and analyze, the rate of cracking is 15.55%.Compare embodiment 1 and crack the 24.06% much lower of rate, analyze reason mainly sodium hydroxide modification is carried out to flyash, have activated sial isoreactivity composition in flyash, the introducing of basic group simultaneously is more conducive to cracking of excess sludge.
Aforesaid method cracks excess sludge, successful, easy to operate, cracks rear excess sludge odorless, and the mud supernatant liquor of acquisition contains a large amount of organic matters, can concentrate exploitation derived product, and sludge residue, not containing bacterial micro-organism, relievedly can do building materials and utilize; This technique does not need additional heat energy, environmental protection, safe and reliable simultaneously, is convenient to industrialization promotion.Certainly, this be present method for the process of excess sludge, but to be not limited thereto, to be also applicable to the process of other types mud.
More than address content be only the present invention conceive under basic explanation, and according to any equivalent transformation that technical scheme of the present invention is done, all should protection scope of the present invention be belonged to.
Claims (7)
1. the combined modified flyash of gamma-rays cracks a method for excess sludge, it is characterized in that, comprises the following steps:
(1) in excess sludge, add modified coal ash, adding proportion is the modified coal ash that every 100mL excess sludge adds 2 ~ 10g, mixes and obtains sludge slurry;
(2) with gamma-rays, radiation treatment is carried out to sludge slurry, crack excess sludge.
2. the combined modified flyash of a kind of gamma-rays according to claim 1 cracks the method for excess sludge, it is characterized in that, modified coal ash is got by following steps preparation: by flyash and sodium hydroxide solution mixing, wherein the quality mol ratio of flyash and sodium hydroxide is 1g:(4 ~ 20) mmol, 3 ~ 5 hours are left standstill after stirring, then dry and grind, obtaining modified coal ash.
3. the combined modified flyash of a kind of gamma-rays according to claim 2 cracks the method for excess sludge, it is characterized in that, the concentration of sodium hydroxide solution is 4mol/L.
4. the combined modified flyash of a kind of gamma-rays according to claim 2 cracks the method for excess sludge, it is characterized in that, is ground to particle diameter at below 2mm after oven dry.
5. the combined modified flyash of a kind of gamma-rays according to claim 1 cracks the method for excess sludge, it is characterized in that, the irradiation dose in radiation treatment is 1KGy ~ 10KGy.
6. the combined modified flyash of a kind of gamma-rays according to claim 1 cracks the method for excess sludge, it is characterized in that, adopts in radiation treatment
60co gamma-rays.
7. the combined modified flyash of a kind of gamma-rays according to claim 1 cracks the method for excess sludge, it is characterized in that, the time of radiation treatment is 10 ~ 60min.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882914A (en) * | 2017-03-02 | 2017-06-23 | 南京航空航天大学 | The method for improving excess sludge of municipal sewage plant dewatering |
| CN106916593A (en) * | 2017-02-14 | 2017-07-04 | 榆林学院 | A kind of aeolian sandy soil renovation agent and preparation method thereof and aeolian sandy soil restorative procedure |
| CN107055994A (en) * | 2017-05-26 | 2017-08-18 | 榆林学院 | A kind of excess sludge high efficient resourcing processing unit |
| CN110776925A (en) * | 2019-11-20 | 2020-02-11 | 榆林学院 | Water-retaining agent prepared from excess sludge, and preparation method and application method thereof |
| CN112375574A (en) * | 2020-11-20 | 2021-02-19 | 王立鹏 | Mining area sandy soil repairing agent and preparation method and use method thereof |
| CN112427042A (en) * | 2020-11-20 | 2021-03-02 | 王立鹏 | Modified fly ash biodiesel catalyst and preparation method and application thereof |
| CN112592011A (en) * | 2020-11-20 | 2021-04-02 | 王立鹏 | Excess sludge cracking agent and preparation method and application thereof |
| CN113842872A (en) * | 2021-09-14 | 2021-12-28 | 华中科技大学 | Modified fly ash material of irradiation grafted amino acid and preparation and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040004038A1 (en) * | 2002-07-03 | 2004-01-08 | Jfe Engineering Corporation | Method and apparatus for treating sludge, and method and apparatus for treating wastewater utilizing the same |
| CN103508651A (en) * | 2013-09-12 | 2014-01-15 | 上海市政工程设计研究总院（集团）有限公司 | Deep sludge dewatering system and method |
-
2015
- 2015-09-30 CN CN201510641965.3A patent/CN105217905B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040004038A1 (en) * | 2002-07-03 | 2004-01-08 | Jfe Engineering Corporation | Method and apparatus for treating sludge, and method and apparatus for treating wastewater utilizing the same |
| CN103508651A (en) * | 2013-09-12 | 2014-01-15 | 上海市政工程设计研究总院（集团）有限公司 | Deep sludge dewatering system and method |
Non-Patent Citations (3)
| Title |
|---|
| 李阳: "改性粉煤灰与微波协同作用下剩余污泥脱水性能与机制的研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 相玉琳等: "60Coγ射线协同H2O2改善污泥蛋白液性能的可行性", 《化工进展》 * |
| 郑忆枫等: "γ-射线对不同含水率剩余污泥的影响", 《环境科学与技术》 * |
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| CN106916593A (en) * | 2017-02-14 | 2017-07-04 | 榆林学院 | A kind of aeolian sandy soil renovation agent and preparation method thereof and aeolian sandy soil restorative procedure |
| CN106916593B (en) * | 2017-02-14 | 2020-02-21 | 榆林学院 | Aeolian sandy soil restoration agent, preparation method thereof and aeolian sandy soil restoration method |
| CN106882914B (en) * | 2017-03-02 | 2021-04-06 | 南京航空航天大学 | Method for improving dehydration performance of excess sludge of municipal sewage treatment plant |
| CN106882914A (en) * | 2017-03-02 | 2017-06-23 | 南京航空航天大学 | The method for improving excess sludge of municipal sewage plant dewatering |
| CN107055994A (en) * | 2017-05-26 | 2017-08-18 | 榆林学院 | A kind of excess sludge high efficient resourcing processing unit |
| CN107055994B (en) * | 2017-05-26 | 2023-06-27 | 江苏海洋大学 | Efficient recycling treatment device for excess sludge |
| CN110776925A (en) * | 2019-11-20 | 2020-02-11 | 榆林学院 | Water-retaining agent prepared from excess sludge, and preparation method and application method thereof |
| CN112427042A (en) * | 2020-11-20 | 2021-03-02 | 王立鹏 | Modified fly ash biodiesel catalyst and preparation method and application thereof |
| CN112592011A (en) * | 2020-11-20 | 2021-04-02 | 王立鹏 | Excess sludge cracking agent and preparation method and application thereof |
| CN112375574B (en) * | 2020-11-20 | 2022-01-25 | 榆林学院 | Mining area sandy soil repairing agent and preparation method and use method thereof |
| CN112592011B (en) * | 2020-11-20 | 2022-11-29 | 江苏海洋大学 | Excess sludge cracking agent and preparation method and application thereof |
| CN112375574A (en) * | 2020-11-20 | 2021-02-19 | 王立鹏 | Mining area sandy soil repairing agent and preparation method and use method thereof |
| CN112427042B (en) * | 2020-11-20 | 2023-08-18 | 江苏海洋大学 | Modified fly ash biodiesel catalyst and preparation method and application thereof |
| CN113842872A (en) * | 2021-09-14 | 2021-12-28 | 华中科技大学 | Modified fly ash material of irradiation grafted amino acid and preparation and application thereof |
| CN113842872B (en) * | 2021-09-14 | 2022-07-12 | 华中科技大学 | Modified fly ash material of irradiation grafted amino acid and preparation and application thereof |
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