CN105668953A - Innocent treatment method of dyeing sludge - Google Patents
Innocent treatment method of dyeing sludge Download PDFInfo
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- CN105668953A CN105668953A CN201410657659.4A CN201410657659A CN105668953A CN 105668953 A CN105668953 A CN 105668953A CN 201410657659 A CN201410657659 A CN 201410657659A CN 105668953 A CN105668953 A CN 105668953A
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Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention provides an innocent treatment method of dyeing sludge. The method comprises the following steps of (1) conducting a biochemical reaction, namely adding industrial sulfuric acid into dyeing sludge, conducting stirring at a constant speed to react, adding a composite microbiological treatment agent, and forming a solid-liquid mixture after reaction; converting odorous organic matters into cell ingredients, carbon dioxide and water to be quickly and efficiently decomposed, adsorbed and absorbed by microbes; (2) conducting microwave resolution modification treatment, namely guiding the solid-liquid mixture into a microwave resolution system, and conducting constant resolution to obtain a mixed liquid, and separating moisture from an insoluble macromolecular organic matter; (3) conducting natural settling to realize concentration, namely pumping the mixed liquid into a gravity thickener, adding a compound microbial deodorizer, conducting natural settling to obtain top suspension, supernate and concentrate; and (4) separating solid and liquid, namely conducting solid-liquid separation on the concentrate to obtain dry residues. According to the method, safety, high efficiency and no stink odor are realized in the whole treatment process, investment is saved, operation cost is reduced, and environmental friendliness is realized.
Description
Technical field
The present invention relates to a kind of textile dyeing sludge processing method, especially relate to a kind of method of printing and dyeing sludge harmless treatment.
Background technology
Along with developing rapidly of dyeing industry, although printing and dyeing enterprise is updated at product, complete processing and printing and dyeing sludge process technical elements, but owing to various PVA slurries used, New-type adjuvant etc. are difficult to the organism of biochemical degradation, pass through dyeing waste water, finally enter in a large number among the printing and dyeing sludge produced, cause printing and dyeing sludge process difficulty to strengthen. The mud produced after treatment of dyeing wastewater is still difficult to dehydration, and the water ratio of dehydrated sludge reaches about 80%. The character of printing and dyeing sludge with become to be grouped into, then required with printing and dyeing enterprise itself raw material fabric and the product category being processed into, the complete processing of employing, the various medicaments selected (such as slurry, dyestuff, auxiliary agent etc.), and waste water treatment process etc. are relevant. In general, the organic content height of bio-refractory, easily corruption is smelly; Particle is more tiny; Containing heavy metal and toxic element such as nickel, copper, chromium, zinc, arsenic, the toxicity of biology is relatively big, the pollution of environment is relatively strong, belong to the environomental pollution source of a class danger. Therefore, a large amount of expense need to be spent in process printing and dyeing sludge.
At present, to printing and dyeing sludge, mainly first utilize printing and dyeing sludge stabilizing method (such as aerobic sigestion, anaerobic digestion) or innoxious method (as with industry sodium hydroxide conditioning, heavy metal-passivated) to carry out primary treatment, then adopt mummification, burning or landfill to carry out ultimate process. Owing to there is many unfavorable factors on its suitability and economy, therefore, still owe desirable in the minimizing of printing and dyeing sludge, the effect of innoxious and stabilization problem solving.
Owing to the slurry in printing and dyeing sludge, dyestuff, auxiliary agent etc. all belong to the organic substance of difficult degradation, therefore aerobic sigestion is applied to printing and dyeing sludge needs to consume a large amount of energy, and aerobic sigestion is not generally suitable for the process of printing and dyeing sludge. Heat drying utilizes heat energy to be dried by mud, only makes the moisture in mud be reduced, and in mud, organic content does not reduce, therefore it is not harmless treatment. And heat drying process technology power consumption is too high, it is applied to printing and dyeing sludge process capital higher. The advantage burned can realize rapidly and to greatest extent minimizing. It both created condition for solving the outlet of mud, fully consumes again the energy in mud, and need not consider the inactivation treatment of pathogenic bacteria. The heat energy recoverable of sludge incineration, toxic pollutant is oxidized, and the heavy metal activity in ashes reduces greatly, and shortcoming is high capital and may produce to pollute waste gas, noise, heat and radiation. Along with using sulfurous gas etc. as Air Pollution Control thing, by the burning of mud, stricter requirement is proposed.
Summary of the invention
Technical problem to be solved by this invention is, it is provided that a kind of process is effective, the method for innocent treatment that cost is lower.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of printing and dyeing sludge harmless treatment, comprises the following steps:
(1) biochemical reaction: measure through under meter from original collecting tank, derive the printing and dyeing sludge of water ratio 95 ~ 99.5%, it is that the ratio of the mass ratio 0.002 ~ 0.01:1 of 93% technical grade sulfuric acid and printing and dyeing sludge adds technical grade sulfuric acid in printing and dyeing sludge in mass concentration, at the uniform velocity stirring and react, churning time is 15 ~ 30min; Add complex microorganism treatment agent in the mass ratio of mass concentration 90% complex microorganism treatment agent and printing and dyeing sludge in the ratio of 0.002 ~ 0.008:1 again, stirring reaction 15 ~ 30min, after stirring, form solidliquid mixture.
Complex microorganism treatment agent utilizes microorganism that repugnant substance in dissolving water is absorbed in microorganism in health, its process degraded is made by microbiota metabolic activity, play specific catalyzed reaction, accelerate the hydrolysis reaction to printing and dyeing sludge, oxidizing reaction and building-up reactions, katalysis is carried out in viable cell, through the material in cytosis extracellular, can also have special strong sterilization, sterilization and deodorization functions.
In printing and dyeing sludge treating processes, especially when the sour environment of above-mentioned (1), three phases can be divided into: the first step is the dissolution process by the larger molecular organics matter of difficult degradation such as the slurry in printing and dyeing sludge, dyestuff, auxiliary agent and the foul gas of generation thereof, namely liquid phase is transferred to by gas phase, microorganism consortium in complex microorganism treatment agent instantaneous seizure can cause smelly destruction smell binding molecule, prevent smell from returning, it is converted into optimum cellular constituent, tasteless carbonic acid gas and water by causing taste organism;2nd step is that in the aqueous solution, organic odoriferous composition is rapidly and efficiently adsorbed by microorganism, absorbs; 3rd step is the organic odoriferous composition that enters microorganism cells as nutritive substance is that Institute of Micro-biology decomposes and utilizes, and pollutent is removed. The treatment agent that this kind of chemistry and microorganism combine, not only safely but also efficiently, and environmentally friendly.
(2) micro-wave digestion modification: step (1) gained solidliquid mixture is imported micro-wave digestion device systems, continues at normal temperatures to clear up 5 ~ 10min, obtain mixed solution.
Heavy metal compound in printing and dyeing sludge, under the promoter action of micro-wave digestion, dissolves fast and enters the aqueous solution; Accelerating the moment extruding of the larger molecular organics matter to difficult degradations such as the slurry in printing and dyeing sludge, dyestuff, auxiliary agents by micro-wave digestion and break at a high speed, moisture precipitates out from the larger molecular organics matter of difficult degradation.
(3) natural subsidence realizes concentrated: above-mentioned mixture pump after modification is entered gravity concentration tank, complex microorganism reodorant is added in the ratio of 0.001 ~ 0.005:1 in the mass ratio of mass concentration 90% complex microorganism treatment agent and printing and dyeing sludge, through 15 ~ 60min natural subsidence, reach preliminary concentrated object, obtain top layer suspended substance, supernatant liquor and concentrated solution.
Top layer suspended substance, the microorganism corpse mainly produced after microorganism metabolism, the suspended substance of nitrogenous phosphorus, main component is protein and microcosmic salt, by automatic mud scraping device, enter collecting tank, return original collecting tank, nutrition as next cycle biochemical reaction supplements, and recycles.
Supernatant liquor, from the top Natural excrement of gravity concentration tank, returns former Waste Water Treatment and processes.
Discharging water ratio from the bottom of gravity concentration tank is 88 ~ 92% concentrated solutions, enters next procedure process.
(4) solid-liquid separation: by the concentrated solution after process, carry out solid-liquid separation through the general solid-liquid separating equipment such as whizzer, plate-and-frame filter press, obtain the dry slag of water ratio less than 50%; Then focus on according to existing specification.
The present invention has the following advantages:
(1) the present invention takes complex microorganism treatment agent processing mode, greatly catalysis and facilitate hydrolysis, the oxidizing reaction of the larger molecular organics of difficult degradation, it is to increase lytic effect, effectively prevent the corruption of organism smelly.
(2) present invention achieves quick adsorption, efficient absorption, instantaneous seizure cause smelly destruction smell binding molecule, reach whole treating processes nonirritant stench peculiar smell, not only safety but also efficient, and environmentally friendly.
(3) achieve high effective integration to printing and dyeing sludge treating processes two heavy, biochemical, digestion operation, both greatly saved investment, and decreased running cost, and greatly reduced the treatment time simultaneously.
(4) achieve the object that contained heavy metal and acid-respons in printing and dyeing sludge form heavy metal ion and enter in the aqueous solution, it is stripped of the heavy metal of printing and dyeing sludge, has fundamentally stopped in printing and dyeing sludge disposal process the possibility of the Heavy-metal Polluted Environment produced.
(5) present invention achieves the recovery to suspended substance, the nutrition as biochemical reaction supplements, and recycles, and greatly reduces the operation cost that medicament adds, and effectively improves process effect simultaneously.
(6) the present invention is utilized to process printing and dyeing sludge, can directly carry out fast deep dehydration, printing and dyeing sludge water ratio is made to drop to less than 50% from original about 80%, decrement more than 60%, thus greatly saved a large amount of landfill land used and transportation cost, also for the following process of printing and dyeing sludge disposes condition of providing convenience.
(7) the present invention can adopt conventional equipment facility, is directly installed on printing and dyeing enterprise Waste Water Treatment and uses, and one-time investment is few, and floor space is few, and the construction period is short.
(8) adopting the method for harmless treatment printing and dyeing sludge of the present invention, production cost is low, is easy to grasp operation, whole operating process nonirritant peculiar smell, environmental friendliness. Be suitable for all kinds of printing and dyeing, the use of rinsing enterprise.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The waste water treatment plant of Lanxi, Zhejiang printing and dyeing enterprise taken from by printing and dyeing sludge sample, production technique PVA slurry, New-type adjuvant are that the Baysolex42062 sequestrant of negatively charged ion and aftersoaping agent are processed, in collecting tank, printing and dyeing sludge is water ratio is 98.5%, solid content is 1.5%, surveys heavy metal content such as table 1. Treatment process and process comprise the steps:
Get water ratio be 98.5% printing and dyeing sludge 5.0Kg put into beaker, add the technical grade sulfuric acid 0.01L that mass concentration is 93%, after even stirring reaction 20min, add mass concentration 90% complex microorganism treatment agent 0.005L, stirring reaction 30min, forms solidliquid mixture.
Sending into the adjustable microwave digesting equipment of frequency 2450MHz ± 50MHz, power 5Kw, (temperature controls at 18 DEG C ~ 28 DEG C) continues to clear up 6min at normal temperatures, obtains mixed solution 6.5L.
Mixed solution is poured into the self-control gravity concentration tank that material is glass reinforced plastic, diameter 20cm, high 50cm, adds mass concentration 90% complex microorganism treatment agent 0.002L, through 30min natural subsidence, obtain top layer suspended substance, supernatant liquor and concentrated solution.
Take out top layer suspended substance with scraper, weigh;Supernatant liquor is derived with siphonage; Concentrated solution is discharged bottom gravity concentration tank.
With power 370w vacuum pump, the vacuum filtration system of pressure 0.08Mpa, volume 2.5L filter flask configuration, carries out solid-liquid separation by concentrated solution, after obtaining dry slag, claims weight in wet base, dries, claim dry base weight, record water ratio.
Supernatant liquor, dry slag are carried out heavy metal analysis, with former state contrast, draws the heavy metal removing rate of printing and dyeing sludge.
The concrete processing parameter of each step refers to table 2, and the weight in wet base of the rear dry slag of gained printing and dyeing sludge of process and dry weight are in table 3, and the heavy metal content before and after printing and dyeing sludge process is in table 4.
The heavy metal content of table 1 printing and dyeing sludge sample
(unit: mg/Kg)
| Become Point | Cu | Pb | Zn | Ni | Hg | Cd | Cr | As |
| Samples contg | 423.15 | 102.5 | 2096.3 | 126.2 | 4.7 | 21.6 | 284.6 | 32.5 |
The each process parameter of table 2 treating processes
Table 3 processes weight in wet base and the dry weight contrast of the dry slag of rear gained
(unit: Kg)
Heavy metal content contrast before and after table 4 sample preparation
(unit: mg/Kg)
| Project | Cu | Pb | Zn | Ni | Hg | Cd | Cr | As |
| Raw sample | 423.15 | 102.5 | 2096.3 | 126.2 | 4.7 | 21.6 | 284.6 | 32.5 |
| Supernatant liquor | 389.3 | 92.64 | 1978.9 | 111.07 | 3.47 | 18.35 | 265.64 | 17 |
| Dry slag | 33.85 | 9.86 | 117.4 | 15.13 | 1.23 | 3.25 | 18.96 | 15.5 |
| Decreasing ratio | 92% | 90.4% | 94.4% | 88% | 73.8% | 85% | 93.3% | 52.3% |
| Standard | 800 | 300 | 2000 | 100 | 5 | 5 | 600 | 75 |
Illustrate: 1, standard-required refers to: in " textile dyeing and finishing industrial water pollution thing emission standard " (GB4287-2012), the clear stipulaties Wastewater Pollutant emission direction of textile dyeing and finishing enterprise, the time limit is divided to define the textile dyeing and finishing the highest permission emission concentration of industrial water pollution thing and quantity discharged, the discharge index of the printing and dyeing sludge not produced after the wastewater treatment of clear stipulaties textile dyeing and finishing enterprise, practical situation according to existing trade management, therefore compare with reference to the highest permission content on acid soil of regulation in " urban wastewater treatment field pollutant emission standard " (GB18918-2002).
2, heavy metal removing rate successful, is better than the prescribed limits of standard-required.
Embodiment 2-4
In different seasons, in this factory, sampling carries out 3 sub-sampling process respectively, and selection time first time is December 22 2013 winter, and sampling 25Kg, water ratio is 97.5%, and solid content is 2.5%. Second time is May 27 2014 summer, and sampling 30Kg, water ratio is 99.2%, and solid content is 0.8%. Being October 15 2014 autumn for the third time, water ratio 98%, solid content is 2.0%.
The printing and dyeing sludge sample of each enforcement process, operating process and step according to above-described embodiment 1 are implemented, but processing parameter adjusts to some extent, the concrete processing parameter of each step refers to table 5, the weight in wet base of the rear gained mud slag of process and dry weight are in table 6, and the heavy metal content before and after printing and dyeing sludge process is in table 7.
The each process parameter of table 5 three sample handling processes
The weight in wet base of the rear dry slag of gained of table 6 three experiments process and dry weight contrast
(unit: Kg)
Heavy metal content contrast before and after table 7 three sample preparation
(unit: mg/Kg)
From table 2, table 5, adopting the method process printing and dyeing sludge of the present invention, additive amount of medicament is less, and the treatment time is short, process successful.
From table 3, table 6, after adopting the present invention to process printing and dyeing sludge, water ratio much slower in gained mud slag, printing and dyeing sludge water ratio is made to drop to less than 50% from original about 80%, decrement more than 60%, thus greatly saved a large amount of landfill land used and transportation cost, also for the following process of printing and dyeing sludge disposes condition of providing convenience.
From table 4, table 7, plurality of heavy metal contained in printing and dyeing sludge after process is removed, the highest permission content on acid soil of its content regulation in " urban wastewater treatment field pollutant emission standard " (GB18918-2002), thus make the dry slag of gained can carry out follow-up safety, environmental protection processing disposal.
Embodiment 5
At Guangdong Zhong Shan tetrad protoplasts printing and dyeing enterprise, running the printing and dyeing sludge generation of its effluent treatment plant over 5 years is 500 tons/day, average moisture content 98.5%, the plate-and-frame filter press of 3 filtration areas 100 squares is adopted to carry out solid-liquid separation, the printing and dyeing sludge slag monthly producing water ratio 81.5% is 1220 tons, average 40.54 tons/day.In the printing and dyeing sludge of this factory, the organic content height of bio-refractory, easily corruption is smelly; Particle is more tiny; Containing heavy metal and toxic element such as nickel, copper, chromium, zinc, arsenic, the toxicity of biology is relatively big, the pollution of environment is relatively strong, belong to the environomental pollution source of a class danger. Therefore, in process printing and dyeing sludge, not only monthly need to spend a large amount of expense, in process, interim stack and in transhipment process, severe contamination plant area's production plant and surrounding enviroment.
After adopting the present invention to carry out technical optimization and improve on October 20th, 2014, through industrialization test operation, on November 10th, 2014 accumulative 22 days, the dry slag total amount of printing and dyeing sludge was 290 tons, average moisture content 43.2%, and dry slag is equivalent to 13.16 tons/day. When carrying out solid-liquid separation, on average only need to start the plate-and-frame filter press of 1.5 filtration areas 100 squares, production requirement can be met. Average every day decreases 27.38 tons, has saved a large amount of expense. And mud is no longer smelly, plurality of heavy metal contained in printing and dyeing sludge after process is removed, and reaches obvious harmless treatment effect.
By producing and experiment, the printing and dyeing sludge treatment plant of Guangdong Zhong Shan tetrad protoplasts printing and dyeing enterprise taken from by sample, and average moisture content is 98.5%, and solid content is 1.5%. Carrying out three experiments process continuously, printing and dyeing sludge 2.0Kg is got in experiment every time. Treating processes and step are with embodiment 1, and the weight in wet base of the rear dry slag of gained of process and dry weight contrast are in table 8, and the heavy metal content before and after printing and dyeing sludge process is in table 9.
The weight in wet base of continuous three the experiment gained mud slags of table 8 and dry weight contrast
(unit: Kg)
Contained heavy metal average content contrast before and after the process that continuous three experiments of table 9 obtain
(unit: mg/Kg)
From table 8, after adopting the present invention to process printing and dyeing sludge, the water ratio in gained mud slag reduces greatly. From table 9, plurality of heavy metal contained in printing and dyeing sludge is removed, the highest permission content on acid soil of its content regulation in " urban wastewater treatment field pollutant emission standard " (GB18918-2002), thus the dry slag after gained is processed can carry out follow-up safety, environmental protection processing is disposed.
Along with the difference of different printing and dyeing enterprises and printing-dyeing waste water treatment process thereof; in the inventive method, each processing parameter can adjust according to practical operation situation; therefore; under the prerequisite not running counter to essence of the present invention; some changes are made in the selection of each processing parameter of the present invention, still belongs to protection scope of the present invention.
Claims (11)
1. the method for a printing and dyeing sludge harmless treatment, it is characterised in that: comprise the following steps:
(1) biochemical reaction: measure through under meter from original collecting tank, derive the printing and dyeing sludge of water ratio 95 ~ 99.5%, it is that the ratio of the mass ratio 0.002 ~ 0.01:1 of 93% technical grade sulfuric acid and printing and dyeing sludge adds technical grade sulfuric acid in printing and dyeing sludge in mass concentration, at the uniform velocity stirring and react, churning time is 15 ~ 30min; Add complex microorganism treatment agent in the mass ratio of mass concentration 90% complex microorganism treatment agent and printing and dyeing sludge in the ratio of 0.002 ~ 0.008:1 again, stirring reaction 15 ~ 30min, after stirring, form solidliquid mixture.
2. complex microorganism treatment agent utilizes microorganism that repugnant substance in dissolving water is absorbed in microorganism in health, its process degraded is made by microbiota metabolic activity, play specific catalyzed reaction, accelerate the hydrolysis reaction to printing and dyeing sludge, oxidizing reaction and building-up reactions, katalysis is carried out in viable cell, through the material in cytosis extracellular, can also have special strong sterilization, sterilization and deodorization functions.
3. in printing and dyeing sludge treating processes, especially when the sour environment of above-mentioned (1), three phases can be divided into: the first step is the dissolution process by the larger molecular organics matter of difficult degradation such as the slurry in printing and dyeing sludge, dyestuff, auxiliary agent and the foul gas of generation thereof, namely liquid phase is transferred to by gas phase, microorganism consortium in complex microorganism treatment agent instantaneous seizure can cause smelly destruction smell binding molecule, prevent smell from returning, it is converted into optimum cellular constituent, tasteless carbonic acid gas and water by causing taste organism;2nd step is that in the aqueous solution, organic odoriferous composition is rapidly and efficiently adsorbed by microorganism, absorbs; 3rd step is the organic odoriferous composition that enters microorganism cells as nutritive substance is that Institute of Micro-biology decomposes and utilizes, and pollutent is removed.
4. the treatment agent that this kind of chemistry and microorganism combine, not only safely but also efficiently, and environmentally friendly.
5.(2) micro-wave digestion modification: step (1) gained solidliquid mixture is imported micro-wave digestion device systems, continues at normal temperatures to clear up 5 ~ 10min, obtain mixed solution.
6. the heavy metal compound in printing and dyeing sludge is under the promoter action of micro-wave digestion, dissolves fast and enters the aqueous solution; Accelerating the moment extruding of the larger molecular organics matter to difficult degradations such as the slurry in printing and dyeing sludge, dyestuff, auxiliary agents by micro-wave digestion and break at a high speed, moisture precipitates out from the larger molecular organics matter of difficult degradation.
7.(3) natural subsidence realizes concentrated: above-mentioned mixture pump after modification is entered gravity concentration tank, complex microorganism reodorant is added in the ratio of 0.001 ~ 0.005:1 in the mass ratio of mass concentration 90% complex microorganism treatment agent and printing and dyeing sludge, through 15 ~ 60min natural subsidence, reach preliminary concentrated object, obtain top layer suspended substance, supernatant liquor and concentrated solution.
8. top layer suspended substance, the mainly microorganism corpse of generation, the suspended substance of nitrogenous phosphorus after microorganism metabolism, main component is protein and microcosmic salt, pass through automatic mud scraping device, enter collecting tank, returning original collecting tank, the nutrition as next cycle biochemical reaction supplements, and recycles.
9. supernatant liquor is from the top Natural excrement of gravity concentration tank, returns former Waste Water Treatment and processes.
10. discharging water ratio from the bottom of gravity concentration tank is 88 ~ 92% concentrated solutions, enters next procedure process.
11.(4) solid-liquid separation: by the concentrated solution after process, carry out solid-liquid separation through the general solid-liquid separating equipment such as whizzer, plate-and-frame filter press, obtain the dry slag of water ratio less than 50%; Then focus on according to existing specification.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879586A (en) * | 2017-10-18 | 2018-04-06 | 福建汇利丰环保科技有限公司 | The waste sludge recovery process of discarded Tetra Pak processing |
| CN110342762A (en) * | 2019-07-23 | 2019-10-18 | 广东共生环境科技有限公司 | A kind of sludge reduction treatment method |
| CN110563293A (en) * | 2019-09-09 | 2019-12-13 | 湖南鑫恒环境科技有限公司 | sludge treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432145A (en) * | 2011-11-09 | 2012-05-02 | 长沙华清泰污泥处理科技有限公司 | Tannery sludge treatment method for sterilizing, deodorizing and removing heavy metals |
| CN102503054A (en) * | 2011-11-02 | 2012-06-20 | 长沙华清泰污泥处理科技有限公司 | Textile dyeing sludge processing method for removing heavy metal and dehydrating |
| CN103708689A (en) * | 2013-12-20 | 2014-04-09 | 湖南大学 | Sterilization, deodorization and deep-dehydration method for livestock excrements |
| JP5497325B2 (en) * | 2009-04-20 | 2014-05-21 | Ｊトップ株式会社 | Method and apparatus for removing adsorbate from porous adsorbent |
-
2014
- 2014-11-19 CN CN201410657659.4A patent/CN105668953B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5497325B2 (en) * | 2009-04-20 | 2014-05-21 | Ｊトップ株式会社 | Method and apparatus for removing adsorbate from porous adsorbent |
| CN102503054A (en) * | 2011-11-02 | 2012-06-20 | 长沙华清泰污泥处理科技有限公司 | Textile dyeing sludge processing method for removing heavy metal and dehydrating |
| CN102432145A (en) * | 2011-11-09 | 2012-05-02 | 长沙华清泰污泥处理科技有限公司 | Tannery sludge treatment method for sterilizing, deodorizing and removing heavy metals |
| CN103708689A (en) * | 2013-12-20 | 2014-04-09 | 湖南大学 | Sterilization, deodorization and deep-dehydration method for livestock excrements |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107879586A (en) * | 2017-10-18 | 2018-04-06 | 福建汇利丰环保科技有限公司 | The waste sludge recovery process of discarded Tetra Pak processing |
| CN110342762A (en) * | 2019-07-23 | 2019-10-18 | 广东共生环境科技有限公司 | A kind of sludge reduction treatment method |
| CN110563293A (en) * | 2019-09-09 | 2019-12-13 | 湖南鑫恒环境科技有限公司 | sludge treatment method |
| CN110563293B (en) * | 2019-09-09 | 2021-09-28 | 湖南鑫恒环境科技有限公司 | Sludge treatment method |
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