CN102583724A - Method for utilizing activated sludge, ozone and magnetic field to reduce sludge - Google Patents
Method for utilizing activated sludge, ozone and magnetic field to reduce sludge Download PDFInfo
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Abstract
The invention relates to a method for utilizing activated sludge, ozone and a magnetic field to reduce sludge, which belongs to the field of sewage treatment and is characterized by including adding parts of sludge taken from a secondary sedimentation tank into an ozone reactor for ozone breaking, adding broken sludge into a magnetization tank, reinforcing enzymatic activity of microorganism in the magnetization tank through effects of the magnetic field to the microorganism, promoting continuous decomposition of refractory fragments and dead microorganism thallus after ozone breaking, and simultaneously enabling high-activity enzyme produced in the magnetization tank to enter an aeration tank with sludge to stimulate regeneration and activation of microorganism in the aeration tank and remove the dead microorganism thallus. The cast quantity of ozone is 0.01-0.05gO3/gSS, the strength of the magnetic field in the magnetization tank is 50-600 GS, the aeration mode is that an aeration head is utilized for aeration, the dissolved oxygen density is 2ppm. And the reduction amount of the sludge can reach over 90%.
Description
Technical field
The present invention relates to a kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement in the sewage treatment area.
Background technology
Mud is the primary product of activated sludge process, and its output accounts for the 0.5-1% of flooding quantity.Generally speaking, the processing costs of mud accounts for about 65% of entire sewage processing costs.The essence of sewage biochemical treatment is with the source of nutrition of the organism that is colloid and dissolved state in the sewage as mikrobe, is translated into carbonic acid gas, water and biological substance, and excessive biological substance has constituted the excess sludge that biochemical treatment produces.Contain organism in the mud, heavy metal, inorganic salt, materials such as mikrobe worm's ovum, mud will cause serious secondary pollution without processing.Sewage work adopts burning and landfill that mud is handled usually; But forbid that with country mud is carried out simple landfill (objectionable impurities during simple landfill in the mud is not handled at all because the cost that burns is too high; Cause secondary pollution easily), increased the difficulty of sludge treatment.The mud of therefore how that output is huge, complicated component makes its stabilization, innoxious, minimizing and resource utilization after handling through science, become one of problem of China and even whole world environment circle extensive concern.
In traditional activated sludge process, system can produce a large amount of mud.Therefore the scholar has invented ozone-active sludge novel process.Ozone has strong oxidizing property, and ability oxidized sludge microorganism wall, cytolemma cause cytolysis.The development and come on this basis just of ozonated sludge Decrement Technique.Intracellular protein, polysaccharide etc. are discharged in the supernatant of mud after the cytolysis, are back to again in the biosystem as secondary matrix, are utilized by the biology in the Sludge System again.In this process, also have newly-increased biological substance and generate, but from the entire sewage treatment system, the biological treatment system outwards living weight of discharging effectively reduces, thereby strengthened the recessive growth of mud, realized mud decrement.People such as Yasui take the lead in having proposed the ozonated sludge decrement combination process that combines with traditional activated sludge process.Experiment shows that when the Sino-Japan ozone dosage in aeration tank was 10 mg/gMLSS, the output of excess sludge reduced 50%.(Yasui H; Shibata M. An innovative approach to reduce excess sludge production in the activated sludge process [J]. Water Science and Technology. 1994; 30 (9): 11-20.) still in ozone-activated sludge process; Nitrogen and phosphorus etc. are owing to the ozone oxidation effect is dissolved in the mud supernatant; And in system, accumulate; Cause water outlet COD, nitrogen, phosphorus rising (Kamiya T, Hirotsuji J. New combined system of biological process and intermittent ozonation for advanced wastewater treatment. Water Science and Technology. 1998,38 (8-9): 145-153.).
In order to solve the problem of effluent quality variation in ozone-activated sludge process, this development in laboratory the novel process in active sludge-ozone-magnetic field.Test is passed through magnetic field to action of microorganisms; The microecosystem function of mikrobe in the enhanced reactor; Promote organic pollutant, difficult degradation is segmental after dead microbial cells and the ozone fragmentation constantly decomposes again, reaches mud decrement and the effect that improves effluent quality.
Mutually promoting in ozone and magnetic field, has improved activated sludge process to organic decomposition and utilization, thereby reach mud decrement and the purpose that improves effluent quality.Its effect of mutually promoting shows as: the enzyme that contains transition metal atoms plays an important role in the metabolism of mikrobe; And transition metal atoms demonstrates the paramagnetic characteristic in many cases; Thereby thereby maybe through magnetic field be used for influencing the activity that paramagnetic atom in the organism influence protein and enzyme, thereby strengthen the metabolism of mikrobe and to the organic decomposition of ozone fragmentation release.The broken releasing organics of ozone has improved the biodegradability of broken mud, and a large amount of organism can be by the mikrobe second stage employ.Compare with the ozone-activated sludge process of routine, VSS/SS in the aeration tank and effluent quality have had significant raising.
Summary of the invention
The present invention seeks to provides a kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement to above-mentioned weak point; In active sludge-ozonation system, insert the magnetization culture systems; Through magnetic field to action of microorganisms; Strengthen the activity of mikrobe (eating the bacterium of mud) in the magnetization pond, residual low concentration ozone also can excite microbic activity in the broken mud simultaneously.Difficult degradation fragment (cell walls resistates) and dead microbial cells constantly decomposes again after this two common promotion ozone fragmentation; Magnetize the high active enzyme that produces in the pond simultaneously and get into the aeration tank with mud (eating the bacterium of mud); Stimulate the microorganisms reproduction activation in the aeration tank; And with difficult degradation fragment and the elimination of dead microbial cells, thereby reach mud decrement and the purpose of improving effluent quality.
A kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement is to take following technical scheme to realize:
A kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement is the part mud of taking from second pond to be joined carry out the ozone fragmentation in the ozone reactor; Joining the mud after the fragmentation in the magnetization pond then supplies mikrobe to utilize; Through magnetic field to action of microorganisms; Strengthen the enzymic activity of mikrobe (eating the bacterium of mud) in the magnetization pond; Difficult degradation fragment and dead microbial cells constantly decomposes again after the fragmentation of promotion ozone; Magnetize the high active enzyme that produces in the pond simultaneously and get into the aeration tank, stimulate the microorganisms reproduction activation in the aeration tank, and difficult degradation fragment (cell walls resistates) and dead microbial cells are eliminated with mud (eating the bacterium of mud).
The concentration of mud is 1-3g/l in the said aeration tank.
Need in the said aeration tank to add trace elements calcium, iron, magnesium, cobalt, nickel, its dosage is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l, 0.04mg/l.The trace element that adds can promote microbial growth and metabolism.
The dosage of ozone is 0.01-0.05 g O in the said method
3/ g SS, magneticstrength is 50-600GS.
Sludge concentration in the aeration tank remains on 1-3g/l, and the air flow of ozone remains on 0.01-0.05 g O
3/ g SS, when magneticstrength was 60-500GS, the decrement of mud was up to more than 90%.
Said mikrobe (eating the bacterium of mud) is a photosynthetic bacterium.
In order to solve the problem of effluent quality variation in ozone-activated sludge process, the invention provides the novel process in active sludge-ozone-magnetic field.Test is passed through magnetic field to action of microorganisms; The microecosystem function of mikrobe in the enhanced reactor; Promote organic pollutant, difficult degradation is segmental after dead microbial cells and the ozone fragmentation constantly decomposes again, reaches mud decrement and the effect that improves effluent quality.
Mutually promoting in ozone and magnetic field, has improved activated sludge process to organic decomposition and utilization, thereby reach mud decrement and the purpose that improves effluent quality.Its effect of mutually promoting shows as: the enzyme that contains transition metal atoms plays an important role in the metabolism of mikrobe; And transition metal atoms demonstrates the paramagnetic characteristic in many cases; Thereby thereby maybe through magnetic field be used for influencing the activity that paramagnetic atom in the organism influence protein and enzyme, thereby strengthen the metabolism of mikrobe and to the organic decomposition of ozone fragmentation release.The broken releasing organics of ozone has improved the biodegradability of broken mud, and a large amount of organism can be by the mikrobe second stage employ.Compare with the ozone-activated sludge process of routine, VSS/SS in the aeration tank and effluent quality have had significant raising.
A kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement of the present invention, this technological advantage is:
(1) in active sludge-ozonation system, inserts the magnetization culture systems; Through magnetic field to action of microorganisms; Strengthen the enzymic activity of mikrobe (eating the bacterium of mud) in the magnetization pond, residual low concentration ozone also can excite microbic activity in the broken mud simultaneously.Difficult degradation fragment and dead microbial cells constantly decomposes again after this two common promotion ozone fragmentation; Magnetize the high active enzyme that produces in the pond simultaneously and get into the aeration tank with mud (eating the bacterium of mud); Stimulate the microorganisms reproduction activation in the aeration tank; And with difficult degradation fragment and the elimination of dead microbial cells, thereby reach mud decrement and the purpose of improving effluent quality.
(2) compare with the ozone-activated sludge process of routine, the VSS/SS in the aeration tank has had significant raising, helps the operation of the long-term stability of system like this.
New process of the present invention can improve the decrement effect of mud.Sludge concentration in the aeration tank remains on 1-3g/l, and the air flow of ozone remains on 0.01-0.05 g O
3/ g SS, when magneticstrength was 60-500GS, the decrement of mud was up to more than 90%, even can realize the zero growth rate of mud.Compare ozone-Sludge System, effluent quality also has significant improvement; VSS/SS in the aeration tank also increases significantly, and helps the operation of the long-term stability of system like this.
Description of drawings
Below will combine accompanying drawing that the present invention is described further:
Fig. 1 is that the present invention utilizes active sludge, ozone, magnetic field to make the method process flow sheet of mud decrement.
Embodiment
Below will combine embodiment to utilize active sludge, ozone, magnetic field that the method for mud decrement is described further to the present invention.
Embodiment 1:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 50GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.05gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.021 | 68 |
| Device c | 0.011 | 60 |
Embodiment 2:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 200GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.05gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.021 | 68 |
| Device c | 0.015 | 59 |
Embodiment 3:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 500GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.05gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.021 | 68 |
| Device c | 0.019 | 58 |
。
Embodiment 4:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 50GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.03gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.108 | 67 |
| Device c | 0.014 | 59 |
。
Embodiment 5:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 200GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.03gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.108 | 67 |
| Device c | 0.017 | 59 |
Embodiment 6:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 500GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.03gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.108 | 67 |
| Device c | 0.022 | 60 |
Embodiment 7:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 50GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.01gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.184 | 67 |
| Device c | 0.022 | 59 |
。
Embodiment 8:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 200GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.01gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.184 | 66 |
| Device c | 0.024 | 60 |
Embodiment 9:What present embodiment adopted is activated sludge process and improvement technology thereof.The volume ratio of each reactor drum is the aeration tank: second pond: magnetization pond=20:8:1.The concentration of mud is 1-3g/l in the aeration tank, in the aeration tank temperature remain on 20-40 the degree, pH remains on 6.8-7.5, adds trace elements calcium, iron, magnesium, cobalt, nickel in the aeration tank; Its add-on is respectively 0.08 mg/l, 0.08 mg/l, 0.08 mg/l, 0.04 mg/l; 0.04mg/l, make trace elements iron, manganese, calcium; Magnesium, the concentration of sodium all remains on certain concentration, and the magneticstrength in magnetization pond is 500GS.Experimental installation totally 3 the cover (be designated as a, b, c).All insert certain sewage work's second pond active sludge in 3 covering devices, in 3 covering devices, feed raw sewerage (COD is 250mg/l) with identical speed.Aeration tank continuous aeration, dissolved oxygen amount are 2ppm.After cultivating for some time, make all normally operations of 3 cover Sludge System (it is stable that water outlet COD keeps, and the mud flco is obvious, and settling property improves, and occur a large amount of protozoon and metazoan during microscopy).Install a then and remain unchanged, as contrast, install the returned sluge that adds among the b through the ozone fragmentation, be converted into active sludge-ozone process, (the ozone dosage is 0.05gO to add the ozone fragmentation among the device c
3/ gss) returned sluge and magnetic field is converted into active sludge-ozone-magnetic field technology.Such 3 covering devices move 4 months continuously, calculate the productive rate of mud in 3 covering devices respectively.
| ? | Sludge yield (g SS/ g COD) | Water outlet COD (mg/l) |
| Conventional activated sludge process | 0.513 | 60 |
| Device b | 0.184 | 67 |
| Device c | 0.024 | 58 |
Investigate above each embodiment, as far as ozone-activated sludge process, the ozone amount that adds is many more, and the effect of mud decrement is just obvious more, but can influence the operation usefulness of technology, and the clearance of COD is descended.After adding magnetic field, adding under the condition of different ozone amounts, mud decrement all can reach reasonable effect, and effluent quality is compared with ozone-active sludge bigger improvement has been arranged.This explanation ozone-active sludge-magnetic field technology is feasible.
Claims (5)
1. method of utilizing active sludge, ozone, magnetic field to make mud decrement; It is characterized in that: be the part mud of taking from second pond to be joined carry out the ozone fragmentation in the ozone reactor; Join the magnetization pond to the mud after the fragmentation then, to action of microorganisms, strengthen the enzymic activity of mikrobe in the magnetization pond through magnetic field; Difficult degradation fragment and dead microbial cells constantly decomposes again after the fragmentation of promotion ozone; Magnetize the high active enzyme that produces in the pond simultaneously and get into the aeration tank, stimulate the microorganisms reproduction activation in the aeration tank, and difficult degradation fragment after the ozone fragmentation and dead microbial cells are eliminated with mud.
2. a kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement according to claim 1 is characterized in that: the dosage of ozone is 0.01-0.05 g O
3/ g SS, the intensity in magnetic field is 50-600GS in the magnetization pond; Aeration mode is to adopt the aeration head aeration, and dissolved oxygen concentration is 2ppm.
3. a kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement according to claim 1, it is characterized in that: the sludge concentration in the aeration tank remains on 1-3g/l, and the air flow of ozone remains on 0.01-0.05 g O
3/ g SS, when magneticstrength was 60-500GS, the decrement of mud was up to more than 90%.
4. a kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement according to claim 1; It is characterized in that: need to add trace elements calcium, iron, magnesium, cobalt, nickel in the said aeration tank; Its dosage is respectively calcium 0.05～0.08 mg/l, iron 0.04～0.08 mg/l, magnesium 0.05～0.08 mg/l; Cobalt 0.03～0.05 mg/l, nickel 0.03～0.04mg/l.
5. a kind of method of utilizing active sludge, ozone, magnetic field to make mud decrement according to claim 1 is characterized in that: said mikrobe is a photosynthetic bacterium.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304036A (en) * | 2012-03-15 | 2013-09-18 | 北京晓清环保工程有限公司 | Method for reducing sludge in sewage treatment |
| CN106396326A (en) * | 2015-08-03 | 2017-02-15 | 林知谚 | Method for reduction of biological sludge |
| CN109110917A (en) * | 2018-09-14 | 2019-01-01 | 天津科技大学 | Magnetic sludge zero-emission sullage continuous processing technique and dedicated unit |
| CN109400338A (en) * | 2018-02-25 | 2019-03-01 | 微山宏瑞电力科技有限公司 | A kind of chicken manure processing is easy to absorb nuisanceless fertilizer and its manufacturing method |
| CN110217937A (en) * | 2018-03-01 | 2019-09-10 | 中国农业大学 | A kind of processing method improving photosynthetic organism amount |
| CN111530897A (en) * | 2020-05-25 | 2020-08-14 | 上海巷西环境科技有限公司 | Vacuum rotary drum type kitchen waste treatment device and treatment process thereof |
| CN112876024A (en) * | 2021-01-26 | 2021-06-01 | 同济大学 | Modification method for in-situ sludge reduction of sewage treatment plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3570605B2 (en) * | 1997-10-23 | 2004-09-29 | 株式会社日立製作所 | Sludge purification equipment |
| JP2005177547A (en) * | 2003-12-16 | 2005-07-07 | Yoshiyuki Tokuda | Decomposition method and apparatus for organic waste |
| CN101121563A (en) * | 2007-07-20 | 2008-02-13 | 浙江大学 | Domestication method for high polymerization hydroxyalkyl ester storage capability active sludge |
| CN101704608A (en) * | 2009-11-19 | 2010-05-12 | 浙江工业大学 | Distributed sewage advanced treatment device with sludge treatment and method thereof |
| CN102060424A (en) * | 2010-12-03 | 2011-05-18 | 北京林业大学 | Method for synergistically decreasing residential sludge by utilizing ozone preoxidation-membrane bioreactor |
-
2012
- 2012-03-28 CN CN2012100860189A patent/CN102583724B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3570605B2 (en) * | 1997-10-23 | 2004-09-29 | 株式会社日立製作所 | Sludge purification equipment |
| JP2005177547A (en) * | 2003-12-16 | 2005-07-07 | Yoshiyuki Tokuda | Decomposition method and apparatus for organic waste |
| CN101121563A (en) * | 2007-07-20 | 2008-02-13 | 浙江大学 | Domestication method for high polymerization hydroxyalkyl ester storage capability active sludge |
| CN101704608A (en) * | 2009-11-19 | 2010-05-12 | 浙江工业大学 | Distributed sewage advanced treatment device with sludge treatment and method thereof |
| CN102060424A (en) * | 2010-12-03 | 2011-05-18 | 北京林业大学 | Method for synergistically decreasing residential sludge by utilizing ozone preoxidation-membrane bioreactor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103304036A (en) * | 2012-03-15 | 2013-09-18 | 北京晓清环保工程有限公司 | Method for reducing sludge in sewage treatment |
| CN106396326A (en) * | 2015-08-03 | 2017-02-15 | 林知谚 | Method for reduction of biological sludge |
| CN109400338A (en) * | 2018-02-25 | 2019-03-01 | 微山宏瑞电力科技有限公司 | A kind of chicken manure processing is easy to absorb nuisanceless fertilizer and its manufacturing method |
| CN110217937A (en) * | 2018-03-01 | 2019-09-10 | 中国农业大学 | A kind of processing method improving photosynthetic organism amount |
| CN109110917A (en) * | 2018-09-14 | 2019-01-01 | 天津科技大学 | Magnetic sludge zero-emission sullage continuous processing technique and dedicated unit |
| CN111530897A (en) * | 2020-05-25 | 2020-08-14 | 上海巷西环境科技有限公司 | Vacuum rotary drum type kitchen waste treatment device and treatment process thereof |
| CN111530897B (en) * | 2020-05-25 | 2023-10-10 | 上海巷西环境科技有限公司 | Vacuum rotary drum type kitchen waste treatment device and treatment process thereof |
| CN112876024A (en) * | 2021-01-26 | 2021-06-01 | 同济大学 | Modification method for in-situ sludge reduction of sewage treatment plant |
| CN112876024B (en) * | 2021-01-26 | 2022-07-05 | 同济大学 | Modification method for in-situ sludge reduction of sewage treatment plant |
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