CN110127974A - A kind of salt sewage sludge harmlessness minimizing recycling treatment process - Google Patents
A kind of salt sewage sludge harmlessness minimizing recycling treatment process Download PDFInfo
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- CN110127974A CN110127974A CN201910439882.4A CN201910439882A CN110127974A CN 110127974 A CN110127974 A CN 110127974A CN 201910439882 A CN201910439882 A CN 201910439882A CN 110127974 A CN110127974 A CN 110127974A
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- sludge
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- recycling
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- 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
- C02F11/02—Biological treatment
-
- 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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- 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
-
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F11/16—Treatment of sludge; Devices therefor by de-watering, drying or thickening using drying or composting beds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The present invention relates to waste processing arts, and disclose a kind of salt sewage sludge harmlessness minimizing recycling treatment process salt sewage sludge harmlessness minimizing recycling treatment process, under the premise of guaranteeing sewage treatment efficiency by sludge reduction, using physics appropriate, chemistry, the methods of biology, the biomass discharged outward is set to reach minimum, to realize the yield for reducing sludge from " source ", the salt sewage sludge harmlessness minimizing recycling treatment process, pass through secondary treatment, by the harmful substance removal inside it also or decompose, prevent secondary pollution, further decrease the moisture content in sludge, it reduces the content of beary metal in sludge or reduces its activity, make toxic in sludge, harmful substance toxicity reduces, the salt sewage sludge harmlessness minimizing recycling treatment process, it is utilized by recycling sludge, it is appropriate that sludge is carried out Processing after, become utilizable resource from waste.
Description
Technical field
The present invention relates to waste processing arts, specially a kind of salt sewage sludge harmlessness minimizing recycling treatment work
Skill.
Background technique
Sludge is the product after sewage treatment, is that one kind is made of organic debris, microorganism, inorganic particle, colloid etc.
Extremely complex heterogeneous body.The key property of sludge is that moisture content is high (up to 99% or more), and high organic content is held
Easily degenerate smelly, and particle is thinner, and specific gravity is smaller, jelly liquid.It is the concentrated thing between liquid and solid, can
To be transported with pump, but it is difficult to be separated by solid-liquid separation by sedimentation.
In sludge handling process, need to carry out it minimizing, innoxious and recycling.
Minimizing, which refers to, reduces moisture to reduce volume, convenient for the transport of sludge, storage and various processing and disposing technique
It carries out, the minimizing of existing sludge needs to use the degradation of microorganism, but generates inhibition to microorganism in salt sludge, leads
It causes microbial degradation slow, causes sludge reduction inefficient.
The innoxious toxicity for referring to mud and harmfulness of sludge are mainly because it contains toxic organic compound, pathogenic microorganisms and a huge sum of money
Belong to 3 substances, the pathogen in sludge is mainly derived from excrement, wherein endangering biggish is enteric pathogenic bacteria and parasite type；
Toxic organic compound is mainly the difficult organochlorine insecticide decomposed, these toxic pathogens and organic matter have to pass through processing disposition,
Its toxic is reduced, security requirement as defined in related rule and standard is complied with, the recycling benefit of sludge just may be implemented
With, existing sludge carry out spininess when harmless treatment farmland fertilizer is carried out it is innoxious, in sludge as novel process resource
Change carry out using when process flow there is a problem that it is unreasonable.
Recycling sludge refers to sludge is subjected to processing appropriate after, become utilizable resource from waste, it is existing
Recycling sludge be only used as farmland fertilizer excessively single, the needs of modern society are not suitable with, as new after being handled
Type resource is utilized.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of salt sewage sludge harmlessness minimizing recycling treatment process,
Have the advantages that decrement is high-efficient, harmless high treating effect and recycling sludge are reasonable, solve sludge reduction it is inefficient,
When innoxious sludge as novel process recycling carry out using when process flow only make there is unreasonable and recycling sludge
Cause to be not suitable with the problem of needs of modern society for farmland fertilizer is excessively single.
(2) technical solution
To realize that high-efficient above-mentioned decrement, harmless high treating effect and the reasonable purpose of recycling sludge, the present invention provide
Following technical solution: a kind of salt sewage sludge harmlessness minimizing recycling treatment process, processing step include:
1, minimizing: sludge reduction is to make entire sewage disposal system under the premise of guaranteeing sewage treatment efficiency, is adopted
With the methods of physics appropriate, chemistry, biology, reach the biomass discharged outward at least, subtracts from " source " to realize
The yield of few sludge, the specific steps are as follows:
(1) sludge is deposited in aeration tank, and is inserted into sludge heater in every 3-4.5 square metres.
(2) ozone oxidation agent is added in sludge.
(3) sludge is imported in filter press and carries out filters pressing.
2, innoxious: it is micro- that sludge also contains the organic matter for being difficult to degrade, heavy metal, salt, a small amount of cause of disease after filters pressing
Biology and parasitic ovum, it is therefore desirable to secondary treatment be carried out to it, the harmful substance inside it also is removed or decomposed, is prevented
Only secondary pollution, the purpose of sewage sludge harmlessness are the moisture content further decreased in sludge, reduce the content of beary metal in sludge
Or its activity is reduced, reduce the poisonous and harmful substances toxicity in sludge, the specific steps are as follows:
(1) sludge after being dried is crushed by crushing machine, is deposited in ventilation after so that sludge cake is formed graininess
Under environment, the aerobic microbiologicals such as nitrogen-fixing bacteria, FM bacterium, EM bacterium and thermophilic bacteria group are added by the technology of bioleaching in sludge
After be mixed.
(2) conditioner, swelling agent and adsorbent are added during sludge composting.
(3) sludge is dried by sludge drier.
3, recycling: recycling sludge utilizes, and refers to after sludge is carried out processing appropriate, and becoming from waste can benefit
Resource both may be used as the raw material of cement after sludge dewatering, can also play the role of providing calorific value, be burnt using sludge
Eco-cement is made in firing can greatly reduce the load of waste processing, realize recycling sludge, the specific steps are as follows:
(1) dry sludge is put into the dore furnace of cement cave.
(2) sludge after carbonate decomposition is added into the auxiliary materials such as proper amount of gypsum, silicate, delivered into revolution cave
It burns.
(3) sludge after burning becomes clinker.
Preferably, filter press uses super-pressure vertical hydraulic filter press.
Preferably, sludge heter temperature is set in 90-120 degree, heating time 3-5 hour.
Preferably, fuel burns at a high temperature of 900 degree or so.
Preferably, the sludge after burning is milled.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of salt sewage sludge harmlessness minimizing recycling treatment process, have
Below the utility model has the advantages that
1, the salt sewage sludge harmlessness minimizing recycling treatment process guarantees sewage treatment efficiency by sludge reduction
Under the premise of, using the methods of physics appropriate, chemistry, biology, reach the biomass discharged outward at least, thus realize from
The yield of sludge is reduced on " source ".
2, salt sewage sludge harmlessness minimizing recycling treatment process, by secondary treatment, by the nocuousness inside it also
Substance removal is decomposed, and secondary pollution is prevented, and further decreases the moisture content in sludge, reduces the content of beary metal in sludge
Or its activity is reduced, reduce the poisonous and harmful substances toxicity in sludge.
3, the salt sewage sludge harmlessness minimizing recycling treatment process, is utilized by recycling sludge, sludge is fitted
When processing after, become utilizable resource from waste.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one:
The invention proposes a kind of salt sewage sludge harmlessness minimizing recycling treatment process, processing step includes:
1, minimizing: sludge reduction is to make entire sewage disposal system under the premise of guaranteeing sewage treatment efficiency, is adopted
With the methods of physics appropriate, chemistry, biology, reach the biomass discharged outward at least, subtracts from " source " to realize
The yield of few sludge, the specific steps are as follows:
(1) sludge is deposited in aeration tank, gas unwanted in water and volatile materials is banished in air, and
Sludge heater is inserted into every 3-4.5 square metres, sludge heter temperature is set in 90-120 degree, heating time 3-5 hour,
Accelerating the cell dissolution in sludge using heating and evaporates a certain amount of moisture, the hydrochloric acid in sludge has volatile attribute,
It is heated to the hydrochloric acid in sludge by heater as moisture volatilizees, promotes the recessive of microorganism to increase, microorganism has
Stronger decomposing organic matter and the function of being translated into inorganic substances.
(2) ozone oxidation agent is added in sludge, with the compound in sludge direct and spacing can occur for ozone oxidation agent
Reaction destroys cell wall and release cytoplasm, while macromolecular not soluble in water also being resolved into the small molecule segment for being dissolved in water,
These molecules are made to be integrated with water, removal when facilitating filters pressing can reduce excess sludge production and further improve sludge settling
Energy.
(3) sludge is imported in filter press, filter press uses super-pressure vertical hydraulic filter press, and the filter press is to sludge
Filters pressing effect is extremely strong, increases the dehydrating effect of sludge, and mechanical sludge dewatering is mainly the capillary water removed between mud granule, makes dirt
The volume of mud is reduced, and makes sludge in mud cake shape, facilitates storage and transport.
2, innoxious: it is micro- that sludge also contains the organic matter for being difficult to degrade, heavy metal, salt, a small amount of cause of disease after filters pressing
Biology and parasitic ovum, it is therefore desirable to secondary treatment be carried out to it, the harmful substance inside it also is removed or decomposed, is prevented
Only secondary pollution, the purpose of sewage sludge harmlessness are the moisture content further decreased in sludge, reduce the content of beary metal in sludge
Or its activity is reduced, reduce the poisonous and harmful substances toxicity in sludge, the specific steps are as follows:
(1) sludge after being dried is crushed by crushing machine, is deposited in ventilation after so that sludge cake is formed graininess
Under environment, granular sludge is more convenient to be stirred, and is stirred more uniformly, passes through the skill of bioleaching in sludge
It is mixed after the aerobic microbiologicals such as art addition nitrogen-fixing bacteria, FM bacterium, EM bacterium and thermophilic bacteria group, aerobic microbiological is to waste
Absorbed, aoxidized and decomposed, microorganism by itself vital movement, in organic matter degradable carbohydrate,
Fat etc. is oxidized to simple inorganic matter, while releasing for energy needed for microorganism grown up activity, and the energy of release makes
Temperature rises, thermophilic bacteria group breeding rapidly in the environment of temperature rises, it may be difficult to the oxidations such as protein, fiber of degradation point
Solution.
(2) conditioner, swelling agent and adsorbent are added during sludge composting, drop exchange state content of beary metal
Low, stable state content of beary metal increases, so that noxious material reduces, largely reduces the toxicity of sludge.
(3) sludge is dried by sludge drier, is further decreased under high temperature environment aqueous in sludge
Rate, and pathogenic microorganism and parasitic ovum are killed by high temperature, harm when reducing sludge cake processing to people.
3, recycling: recycling sludge utilizes, and refers to after sludge is carried out processing appropriate, and becoming from waste can benefit
Resource both may be used as the raw material of cement after sludge dewatering, can also play the role of providing calorific value, be burnt using sludge
Eco-cement is made in firing can greatly reduce the load of waste processing, realize recycling sludge, the specific steps are as follows:
(4) dry sludge is put into the dore furnace of cement cave, is stablized at a high temperature of 900 degree or so by fuel and is fired
It burns, so that sludge carries out carbonate decomposition reaction well.
(5) sludge after carbonate decomposition is added into the auxiliary materials such as proper amount of gypsum, silicate, delivered into revolution cave
It burns.
(6) sludge after burning becomes clinker, is milled, facilitates storage and use.
Embodiment two:
The invention proposes a kind of salt sewage sludge harmlessness minimizing recycling treatment process, processing step includes:
1, minimizing: sludge reduction is to make entire sewage disposal system under the premise of guaranteeing sewage treatment efficiency, is adopted
With the methods of physics appropriate, chemistry, biology, reach the biomass discharged outward at least, subtracts from " source " to realize
The yield of few sludge, the specific steps are as follows:
(1) sludge is deposited in aeration tank, gas unwanted in water and volatile materials is banished in air, and
Sludge heater is inserted into every 2-3.5 square metres, sludge heter temperature is set in 80-110 degree, heating time 2-3 hour,
Accelerating the cell dissolution in sludge using heating and evaporates a certain amount of moisture, the hydrochloric acid in sludge has volatile attribute,
It is heated to the hydrochloric acid in sludge by heater as moisture volatilizees, promotes the recessive of microorganism to increase, microorganism has
Stronger decomposing organic matter and the function of being translated into inorganic substances.
(2) ozone oxidation agent is added in sludge, with the compound in sludge direct and spacing can occur for ozone oxidation agent
Reaction destroys cell wall and release cytoplasm, while macromolecular not soluble in water also being resolved into the small molecule segment for being dissolved in water,
These molecules are made to be integrated with water, removal when facilitating filters pressing can reduce excess sludge production and further improve sludge settling
Energy.
(3) sludge is imported in filter press, filter press uses super-pressure vertical hydraulic filter press, and the filter press is to sludge
Filters pressing effect is extremely strong, increases the dehydrating effect of sludge, and mechanical sludge dewatering is mainly the capillary water removed between mud granule, makes dirt
The volume of mud is reduced, and makes sludge in mud cake shape, facilitates storage and transport,
2, innoxious: it is micro- that sludge also contains the organic matter for being difficult to degrade, heavy metal, salt, a small amount of cause of disease after filters pressing
Biology and parasitic ovum, it is therefore desirable to secondary treatment be carried out to it, the harmful substance inside it also is removed or decomposed, is prevented
Only secondary pollution, the purpose of sewage sludge harmlessness are the moisture content further decreased in sludge, reduce the content of beary metal in sludge
Or its activity is reduced, reduce the poisonous and harmful substances toxicity in sludge, the specific steps are as follows:
(1) being crushed after being dried by crushing machine is deposited in ventilated environment after so that sludge cake is formed graininess
Under, granular sludge is more convenient to be stirred, and is stirred more uniformly, is added in sludge by the technology of bioleaching
It is mixed after adding the aerobic microbiologicals such as nitrogen-fixing bacteria, FM bacterium, EM bacterium and thermophilic bacteria group, aerobic microbiological carries out waste
It absorbs, oxidation and decompose, microorganism is by itself vital movement, degradable carbohydrate, the fat in organic matter
It etc. being oxidized to simple inorganic matter, while releasing for energy needed for microorganism grown up activity, the energy of release makes temperature
Rise, thermophilic bacteria group breeding rapidly in the environment of temperature rises, it may be difficult to the oxygenolysis such as protein, fiber of degradation.
(2) conditioner, swelling agent and adsorbent are added during sludge composting, drop exchange state content of beary metal
Low, stable state content of beary metal increases, so that noxious material reduces, largely reduces the toxicity of sludge.
(3) sludge is dried by sludge drier, is further decreased under high temperature environment aqueous in sludge
Rate, and pathogenic microorganism and parasitic ovum are killed by high temperature, harm when reducing sludge cake processing to people.
3, recycling: recycling sludge utilizes, and refers to after sludge is carried out processing appropriate, and becoming from waste can benefit
Resource, haydite are a kind of artificial lightweight coarse aggregates, are to have development latent because the characteristics such as light, high-strength, heat preservation are concerned
A kind of building material of power.Modified sewage sludge can be made haydite and use as construction material, the specific steps are as follows:
(1) adding raw materials SiO2 after sludge being milled, Al2O3 and Fe2O3 and the flux oxide for playing fluxing action:
It is mixed after Na2O, K2O, FeO, MgO, is mixed after the completion of mixing with water and be twisted into spherical shape.
(2) spherical haydite materials are placed in the environment of aeration-drying and are dried.
(3) it is sintered after the haydite materials of drying process are by preheating, sludge can generate gas when being calcined, and cooperate
Corresponding process flow simultaneously can make pellet generation burning swollen in conjunction with adjuvant, reach haydite requirement.
(4) haydite that sintering is completed is cooled down by placing, and forms haydite after cooling.
The beneficial effects of the present invention are: being utilized first by being inserted into sludge heater after sludge is deposited in aeration tank
Heating accelerates the cell dissolution in sludge and evaporates a certain amount of moisture and make the hydrochloric acid in sludge as moisture volatilizees, and promotees
Recessiveness into microorganism increases, and microorganism has the function of stronger decomposing organic matter and is translated into inorganic substances, then
By adding ozone oxidation agent in sludge, reducing excess sludge production and further improves sludge settling property, then pass through by
Sludge imports in filter press, removes the capillary water between mud granule, reduces the volume of sludge, and makes sludge in mud cake shape, side
Just it stores and transports, the sludge after drying process is crushed by crushing machine again later, is added by the technology of bioleaching
It is mixed after adding the aerobic microbiologicals such as nitrogen-fixing bacteria, FM bacterium, EM bacterium and thermophilic bacteria group, the organic matter in sludge is dropped
Solution reduces the toxicity of sludge, Zhi Houzai by adding conditioner, swelling agent and adsorbent during sludge composting again later
Sludge is dried by sludge drier, further decreases the moisture content in sludge under high temperature environment, and pass through height
Temperature kills pathogenic microorganism and parasitic ovum, finally again by by sludge carry out processing appropriate using sludge as cement raw material or
Haydite is made, reduces the load of waste processing, realizes recycling sludge.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of salt sewage sludge harmlessness minimizing recycling treatment process, which is characterized in that comprise the following steps that:
1, minimizing: sludge reduction is to make entire sewage disposal system under the premise of guaranteeing sewage treatment efficiency, using suitable
When physics, chemistry, the methods of biology, reach the biomass discharged outward at least, thus realize reduced from " source " it is dirty
The yield of mud, the specific steps are as follows:
(1) sludge is deposited in aeration tank, and is inserted into sludge heater in every 2-4.5 square metres；
(2) ozone oxidation agent is added in sludge；
(3) sludge is imported in filter press and carries out filters pressing；
2, innoxious: sludge is after filters pressing also containing organic matter, heavy metal, salt, a small amount of pathogenic microorganism for being difficult to degrade
And parasitic ovum, it is therefore desirable to secondary treatment be carried out to it, the harmful substance inside it also is removed or decomposed, prevents two
Secondary pollution, the purpose of sewage sludge harmlessness are the moisture content further decreased in sludge, reduce content of beary metal or drop in sludge
Its low activity, reduces the poisonous and harmful substances toxicity in sludge, the specific steps are as follows:
(1) sludge after being dried is crushed by crushing machine, adds fixed nitrogen by the technology of bioleaching in sludge
It is mixed after the aerobic microbiologicals such as bacterium, FM bacterium, EM bacterium and thermophilic bacteria group；
(2) conditioner, swelling agent and adsorbent are added during sludge composting；
(3) sludge is dried by sludge drier；
3, recycling: recycling sludge utilizes, and refers to after sludge is carried out processing appropriate, becomes utilizable from waste
Resource both may be used as the raw material of cement after sludge dewatering, can also play the role of providing calorific value, utilize sludge incineration system
The load of waste processing can be greatly reduced by making eco-cement, realize recycling sludge, the specific steps are as follows:
(1) dry sludge is put into the dore furnace of cement cave；
(2) sludge after carbonate decomposition is added into the auxiliary materials such as proper amount of gypsum, silicate, delivers into revolution cave and burns
It burns；
(3) sludge after burning becomes clinker, and the sludge after burning is milled；
4, second of process of recycling, the specific steps are as follows:
(1) adding raw materials SiO2 after sludge being milled, Al2O3 and Fe2O3 and the flux oxide for playing fluxing action: Na2O,
It is mixed after K2O, FeO, MgO, is mixed after the completion of mixing with water and be twisted into spherical shape；
(2) spherical haydite materials are placed in the environment of aeration-drying and are dried；
(3) it is sintered after the haydite materials of drying process are by preheating, sludge can generate gas when being calcined, cooperation is corresponding
Process flow simultaneously can make pellet generation burning swollen in conjunction with adjuvant, reach haydite requirement；
(4) haydite that sintering is completed is cooled down by placing, and forms haydite after cooling.
2. a kind of salt sewage sludge harmlessness minimizing recycling treatment process according to claim 1, which is characterized in that described
Filter press uses super-pressure vertical hydraulic filter press.
3. a kind of salt sewage sludge harmlessness minimizing recycling treatment process according to claim 1, which is characterized in that described
Sludge heter temperature is set in 80-120 degree, heating time 2-5 hour.
4. a kind of salt sewage sludge harmlessness minimizing recycling treatment process according to claim 1, it is characterised in that: described
Fuel burns at a high temperature of 900 degree or so.
5. a kind of salt sewage sludge harmlessness minimizing recycling treatment process according to claim 1, it is characterised in that: described
Sludge cake crushes to form graininess after be deposited under ventilated environment.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110526532A (en) * | 2019-09-26 | 2019-12-03 | 山东大学 | Utilize the innoxious method with minimizing processing sludge preparation gardens fertilizer of microorganism |
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| CN107311422A (en) * | 2017-08-11 | 2017-11-03 | 江苏浦坤纳米科技有限公司 | A kind of sludge reduction reaction system and processing method |
| CN109734418A (en) * | 2019-03-05 | 2019-05-10 | 中国华电科工集团有限公司 | The method and system of haydite are made by mixing with sludge for a kind of flyash |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526532A (en) * | 2019-09-26 | 2019-12-03 | 山东大学 | Utilize the innoxious method with minimizing processing sludge preparation gardens fertilizer of microorganism |
| CN110526532B (en) * | 2019-09-26 | 2021-08-10 | 山东大学 | Method for preparing garden fertilizer by utilizing harmless and reduction treatment sludge of microorganisms |
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Application publication date: 20190816 |