CN207143060U - A kind of environmentally friendly mud decrement system - Google Patents
A kind of environmentally friendly mud decrement system Download PDFInfo
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- CN207143060U CN207143060U CN201720658454.7U CN201720658454U CN207143060U CN 207143060 U CN207143060 U CN 207143060U CN 201720658454 U CN201720658454 U CN 201720658454U CN 207143060 U CN207143060 U CN 207143060U
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Abstract
The utility model provides a kind of environmentally friendly mud decrement system, it is big for sludge yield, and sludge places the problem of producing stench, including peroxide aeration tank, bactericidal unit, hydrolysis acidification pool, aerobic aeration pond, mudpan, sludge deodorization device, dehydration device, desiccation apparatus, water resource heat pump, in mud decrement processing procedure, fundamentally suppress the generation of foul smell, and the sludge after decrement also no longer produces foul smell.
Description
Technical field
The utility model belongs to field for the treatment of of solid waste, more particularly to a kind of mud decrement processing system.
Background technology
With the improvement of people's environmental awareness, sewage disposal technology fast development, sewage treatment plant in all parts of the country builds in succession
Into operation.A large amount of sludge are produced in sewage disposal process, such as B-grade sewage treatment plant, sludge quantity accounts for the 0.3% of total process water yield
~0.5%（Volume）.Specific resistance to filtration process does not catch up with the paces of sewage disposal far, causes a large amount of sludge to be stacked, nowhere disposes,
Foul smell is produced, serious secondary pollution is caused to environment.Establish Treatment of Sludge factory, the sludge of sewage plant centrally dispose be
The final process approach of sludge, but sludge yield is big, processing cost is high, and Direct Disposal certainly will cause the waste of resource, and dirty
Mud moisture content is high, but from sewage plant to sludge factory during can not be transported by pipeline, can only by Automobile Transportation, sludge
Transport improves the cost of disposal of sludge, and it is excessive etc. to easily cause water clock, gas in transportation, and secondary dirt is caused to environment
Dye.Therefore, decrement treatment is carried out first to sludge caused by sewage plant, can is that follow-up Treatment of Sludge depressurizes.
When sludge is in anaerobic state, microbial fermentation in sludge produce hydrogen sulfide, organic sulfur, methyl mercaptan, indoles,
The gases such as ammonia, form foul odour.Sludge odor complicated, not only human body, which is produced, does not influence about, also containing various
Harmful substance, surrounding air, soil, water source are polluted, or even make one poor appetite, even Nausea and vomiting, nerve cord
Disturb, it is very harmful, once producing, it is big to collect intractability, it is impossible to recycle.Sludge odor treatment technology produces sludge anaerobic
Raw foul smell is purified, qualified discharge, but the sludge outward transport after being reduced can still produce foul smell, cure the symptoms, not the disease.
The content of the invention
The utility model is big for sludge yield, and sludge places the problem of producing stench, proposes a kind of environmentally friendly
Mud decrement system, in mud decrement processing procedure, fundamentally suppress the generation of foul smell, and the sludge after being reduced is also no longer
Produce foul smell.
A kind of environmentally friendly mud decrement system of the present utility model, including：
Peroxide aeration tank（1）, enter dredge pump equipped with peroxide aeration tank（2）, peroxide agitating device（3）, peroxide aerator（4）、
Sludge reflux pump（5）And slag-scraper（27）, it is connected with the sludge storage pool of sewage plant；
Bactericidal unit（6）, enter dredge pump equipped with bactericidal unit（7）, sterilizing agitating device（8）, bactericidal agent chemicals dosing plant（9）、
Bactericidal agent spray equipment（10）, negative-pressure ward cover（11）With negative-pressure ward pump（12）, with the peroxide aeration tank（1）It is connected；
The bactericidal agent chemicals dosing plant（9）With the bactericidal agent spray equipment（10）It is connected；The negative-pressure ward cover（11）Positioned at institute
State bactericidal unit（6）Top, with the negative-pressure ward pump（12）It is connected；
Hydrolysis acidification pool（13）, reaction tank is divided into by dividing plate（14）And mixing pit（15）, it is furnished with into dredge pump（16）, slush pump
（17）, mixing pit agitating device（18）, with the bactericidal unit（6）It is connected, mud is entered in enters mud pipe road with the peroxide aeration tank
Pump（2）It is connected；
Aerobic aeration pond（19）, enter dredge pump equipped with aerobic aeration pond（20）, aerobic aeration pond shell pump（21）With aerobic exposure
Gas device（22）, with hydrolysis acidification pool（13）With the negative-pressure ward pump（12）It is connected；
Mudpan（23）, with aerobic aeration pond shell pump（21）It is connected；
Sludge deodorization device（24）, with the mudpan（23）It is connected；
Dehydration device（25）, with the sludge deodorization device（24）It is connected；
Air blower（26）, with the peroxide aerator（4）With the aerobic aeration device（22）It is connected；
Desiccation apparatus（28）, with the dehydration device（25）It is connected；
Water resource heat pump（29）, with the aerobic aeration pond（19）With the desiccation apparatus（28）It is connected.
Further, the bactericidal unit is obturator.
Further, the sludge deodorization device be microwave odor removal, ozone deodorizer, ultraviolet ray deodorization device,
One kind in deodorant odor removal.
Further, the volumetric ratio in the peroxide aeration tank and the aerobic aeration pond is 1:6~15.
A kind of environmentally friendly mud decrement system of the present utility model, is achieved by the steps of：
（1）The sludge conditioning moisture content of sewage plant>93%, into peroxide aeration tank, peroxide aeration tank bottom is provided with aeration and filled
Put, it is the mg/L of 3 mg/L ~ 5 to control in peroxide aeration tank dissolved oxygen concentration, and sludge in peroxide aeration tank is stirred,
Whole sludge are made fully to be contacted with oxygen, residence time of the sludge in peroxide aeration tank is 7 ~ 12h, control sludge bulking 1.2 ~
1.5 times, excessive oxygen suppresses the growth of zoogloea, destroys activated sludge skeleton structure, sludge decomposition；
（2）Sludge after disintegration enters bactericidal unit, sprays bactericidal agent, and is sufficiently stirred, and bactericidal agent is killed in sludge
Microorganism, the foul smell in sewage sludge disinfection device are discharged into aerobic aeration pond by negative suction system, a sterilizing sludge part
It is back in peroxide aeration tank, ensures to inject a small amount of bactericidal agent in the sustainable aeration tank to peroxide, to prevent the production of scum silica frost and foam
It is raw；
（3）Sludge after sterilizing enters the reaction tank of hydrolysis acidification pool, and the reacted solution overflow of hydrolysis acidification enters mixed
Pond is closed, for the reacted sludge of hydrolysis acidification by pumping into mixing pit, sludge enters aerobic aeration pond after being mixed with the aqueous solution,
It is the mg/L of 2 mg/L ~ 3 to control in aerobic aeration tank dissolved oxygen concentration, and the residence time is 3 ~ 5 days, the part in sludge storage pool
Sludge is directly entered aerobic aeration pond, supplements a certain amount of microorganism and nutriment；
（4）Sludge after aerobic aeration enters sedimentation device, and by sedimentation, supernatant is discharged into entering for sewage treatment plant again
Water, the sludge of precipitation enter odor removal；
（5）Sludge after deodorization is dehydrated, and the sludge after dehydration enters desiccation apparatus, and aerobic aeration pond passes through water source heat
Pump provides thermal source to desiccation apparatus, and the caused dewatered sludge that is destitute of smell is obtained after desiccation.
Further, the step（2）Bactericidal agent be NaC1O, NaC1O2Or Cl2In one kind.
Further, the step（2）The chemical feeding quantity of bactericidal agent be chloride ion content 35mg/L ~ 50mg/L.
Further, the step（2）Sludge reflux to the reflux ratio of peroxide aeration tank in bactericidal unit is 1% ~ 15%.
Further, the step（1）With the step（3）Into the sludge quantity in peroxide aeration tank with being directly entered
The sludge quantity ratio in aerobic aeration pond is 4.7 ~ 9.5:1.
The utility model proposes a kind of environmentally friendly mud decrement system, is aerated by peroxide and destroys microorganism in sludge
Skeleton structure, microorganism is disintegrated, then by spray bactericidal agent kill microorganism, dead microorganism is as carbon source aerobic
It is consumed in pond, the sludge after decrement is further sterilized, and finally dehydration obtains no longer producing the mud cake of foul smell.Prior art
The decrement of sludge is realized by being directly aerated, sludge retention time length, just there is within general more than 5 ~ 8 days reduced training, and be reduced one
As 40% or so, the utility model is by the way that microbial bacteria micelle is opened, then microorganism is killed, then the microorganism of kill is made
The decrement of sludge is realized for the method that nutrient consumption falls, greatly reduces sludge retention time, mud decrement is up to 90%, and micro- life
Thing in aerobic or dead state, fundamentally suppresses the generation of foul smell, and the sludge after decrement also no longer produces foul smell all the time.
Brief description of the drawings
Fig. 1 is a kind of flow chart of environmentally friendly mud decrement system of the utility model.
Dredge pump, 3- peroxide agitating devices, 4- peroxide aerators, 5- sludge time are entered in 1- peroxides aeration tank, 2- peroxides aeration tank
Pump, 6- bactericidal units are flowed, 7- bactericidal units enter dredge pump, 8- sterilizing agitating devices, 9- bactericidal agent chemicals dosing plants, 10- spray equipments,
11- negative-pressure ward covers, 12- negative-pressure ward pumps, 13- hydrolysis acidification pools, 14- reaction tanks, 15- mixing pits, 16- enter dredge pump, and 17- takes out
Dredge pump, the pond mud extraction of 21- aerobic aerations are entered in dredge pump, 18- mixing pit agitating devices, 19-aerobic aeration pond, 20- aerobic aerations pond
Pump, 22- aerobic aeration devices, 23- mudpans, 24- sludge deodorization devices, 25- dehydration devices, 26- air blowers, 27- scrape slag
Device, 28- desiccation apparatus, 29- water resource heat pumps.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Its moisture content of the sludge conditioning of sewage plant>93%, into peroxide aeration tank, peroxide aeration tank is furnished with agitating device, bottom
Portion is provided with aerator, and because sludge solid content is higher, simplex aeration is not enough to stir by mud granule, and sludge can occur
Settle, oxygen content skewness in sludge solutions, and easily cause aeration hole plug, aeration is carried out simultaneously with stirring, is also avoided
The generation of local anaerobic.Oxygen content is heightened to the mg/L of 3 mg/L ~ 5, carries out peroxide aeration, excessive oxygen suppresses bacterium glue
The growth of group, quickly breeding causes activated sludge skeleton structure to destroy to der Pilz, sludge decomposition.Control filamentary discharges to 1.2 ~
1.5 times, suppress der Pilz excessively foam and scum silica frost caused by breeding by the sterilizing sludge solutions that flow back.Der Pilz in activated sludge
With active zoogloea symbiosis, to keep the purification efficiency of the flocculation structure of sludge and biochemical treatment, der Pilz is caused quickly to breed
Method have a lot, it is considered that, because der Pilz has larger specific surface area and relatively low oxygen saturation constant, low DO can draw
The quick breeding of der Pilz is played, but low DO can also produce foul smell, pollute surrounding environment；Inorganic salts are added, or heightens, turn down dirt
Mud pH value of solution can cause der Pilz amount reproduction, but acid adding or add alkali to cause pH to change, and finally also need plus alkali or acid adding are by pH
Neutrality is recalled to, not only increases medicament expense and uses, also add soluble ion concentration in water body, be unfavorable for the final discharge of water body.
Sludge after disintegration enters bactericidal unit, and bactericidal unit is obturator, and top is provided with negative-pressure ward cover, will sterilized
During caused a small amount of foul smell be discharged into by negative-pressure ward in aerobic aeration pond；Bactericidal agent is provided with inside bactericidal unit to spray
Shower device, bactericidal agent is uniformly sprayed in sludge solutions, to ensure microorganism quick death, reduce the generation of foul smell, sterilized
Agent is NaC1O, NaC1O2Or Cl2In one kind, the chemical feeding quantity of bactericidal agent is chloride ion content 35mg/L ~ 50mg/L.
Sludge after sterilizing enters the reaction tank of hydrolysis acidification pool, and larger molecular organicses are decomposed into small by hydrolysis acidification reaction
Solution overflow after molecular organic enters mixing pit, the reacted sludge of hydrolysis acidification by pumping into mixing pit, sludge
Enter aerobic aeration pond as carbon source after being mixed with the aqueous solution, due to containing a small amount of bactericidal agent, shadow in the sludge solutions after sterilizing
The normal growth of microorganism in aerobic aeration pond is rung, microorganism is maintained by supplementing the activated sludge in a certain amount of sludge storage pool
Normal survival volume, it is 4.7 ~ 9.5 into the sludge quantity in peroxide aeration tank and the sludge quantity ratio for being directly entered aerobic aeration pond:1,
It is the mg/L of 2 mg/L ~ 3 to control in aerobic aeration tank dissolved oxygen concentration, and the residence time is 3 ~ 5 days.
Mud decrement after aerobic aeration reaches more than 60%, because microorganism largely consumes in sludge, is filled into sedimentation
Put, by sedimentation, supernatant is discharged into the water inlet of sewage treatment plant again, and the sludge of precipitation is further removed into odor removal
It is smelly；Sludge after deodorization is dehydrated, and the sludge after dehydration enters desiccation apparatus, and aerobic aeration pond is by water resource heat pump to desiccation
Device provides thermal source, and the caused dewatered sludge that is destitute of smell is obtained after desiccation.
Embodiment 1：
Certain sewage plant sludge yield 60t/d, moisture percentage in sewage sludge is 95.0% in second pond, is using second pond sludge as this
System enters mud, and daily 55t sludge enters peroxide aeration tank, and it is 5mg/L to control oxygen content, 8 hours residence times, is seen through microscope
Der Pilz amount reproduction is examined, is destroyed through electron microscopic observation zoogloea structure；Sludge after peroxide aeration enters bactericidal unit, sprays
The bactericidal agent of leaching is 10% NaC1O solution, and sterilizing sludge reflux to the sludge quantity of peroxide aeration tank is 0.35m3/h；After sterilizing
Sludge be hydrolyzed acidifying after carry out aerobic aeration, daily 5t sludge enters aerobic aeration pond, controls aerobic aeration tank oxygen-containing
Measure as 2 ~ 3mg/L, the dewatered sludge 2.08t of 3 days residence times, daily production moisture content 20%.
Embodiment 2：
Certain sewage plant sludge yield 100t/d, moisture percentage in sewage sludge is 99.0% in second pond, is using second pond sludge as this
System enters mud, and daily 90t sludge enters peroxide aeration tank, and it is 4mg/L to control oxygen content, 12 hours residence times, through microscope
Der Pilz amount reproduction is observed, is destroyed through electron microscopic observation zoogloea structure；Sludge after peroxide aeration enters bactericidal unit,
The bactericidal agent of spray is 10% NaC1O2Solution, sterilizing sludge reflux to the sludge quantity of peroxide aeration tank is 0.1m3/h；After sterilizing
Sludge be hydrolyzed acidifying after carry out aerobic aeration, daily 10t sludge enters aerobic aeration pond, controls aerobic aeration tank oxygen-containing
Measure as 2 ~ 3mg/L, the dewatered sludge 0.5t of 5 days residence times, daily production moisture content 20%.
Claims (4)
- A kind of 1. environmentally friendly mud decrement system, it is characterised in that including：Peroxide aeration tank（1）, enter dredge pump equipped with peroxide aeration tank（2）, peroxide agitating device（3）, peroxide aerator（4）, sludge Reflux pump（5）And slag-scraper（27）, it is connected with the sludge storage pool of sewage plant；Bactericidal unit（6）, enter dredge pump equipped with bactericidal unit（7）, sterilizing agitating device（8）, bactericidal agent chemicals dosing plant（9）, sterilizing Agent spray equipment（10）, negative-pressure ward cover（11）With negative-pressure ward pump（12）, with the peroxide aeration tank（1）It is connected；It is described Bactericidal agent chemicals dosing plant（9）With the bactericidal agent spray equipment（10）It is connected；The negative-pressure ward cover（11）Gone out positioned at described Bacterium device（6）Top, with the negative-pressure ward pump（12）It is connected；Hydrolysis acidification pool（13）, reaction tank is divided into by dividing plate（14）And mixing pit（15）, it is furnished with into dredge pump（16）, slush pump （17）, mixing pit agitating device（18）, with the bactericidal unit（6）It is connected, mud is entered in enters mud pipe road with the peroxide aeration tank Pump（2）It is connected；Aerobic aeration pond（19）, enter dredge pump equipped with aerobic aeration pond（20）, aerobic aeration pond shell pump（21）With aerobic aerator （22）, with hydrolysis acidification pool（13）With the negative-pressure ward pump（12）It is connected；Mudpan（23）, with aerobic aeration pond shell pump（21）It is connected；Sludge deodorization device（24）, with the mudpan（23）It is connected；Dehydration device（25）, with the sludge deodorization device（24）It is connected；Air blower（26）, with the peroxide aerator（4）With the aerobic aeration device（22）It is connected；Desiccation apparatus（28）, with the dehydration device（25）It is connected；Water resource heat pump（29）, with the aerobic aeration pond（19）With the desiccation apparatus（28）It is connected.
- A kind of 2. environmentally friendly mud decrement system as claimed in claim 1, it is characterised in that the bactericidal unit（6） For obturator.
- A kind of 3. environmentally friendly mud decrement system as claimed in claim 1, it is characterised in that the sludge deodorization device （24）For one kind in microwave odor removal, ozone deodorizer, ultraviolet ray deodorization device, deodorant odor removal.
- A kind of 4. environmentally friendly mud decrement system as claimed in claim 1, it is characterised in that the peroxide aeration tank （1）With the aerobic aeration pond（19）Volumetric ratio be 1:6~15.
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| CN201720658454.7U CN207143060U (en) | 2017-06-08 | 2017-06-08 | A kind of environmentally friendly mud decrement system |
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| CN201720658454.7U CN207143060U (en) | 2017-06-08 | 2017-06-08 | A kind of environmentally friendly mud decrement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110622A (en) * | 2020-09-08 | 2020-12-22 | 天津壹新环保工程有限公司 | Sludge sterilization treatment device and process |
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- 2017-06-08 CN CN201720658454.7U patent/CN207143060U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112110622A (en) * | 2020-09-08 | 2020-12-22 | 天津壹新环保工程有限公司 | Sludge sterilization treatment device and process |
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