CN112607987A - System for ecological enzyme preparation is used for mud decrement - Google Patents
System for ecological enzyme preparation is used for mud decrement Download PDFInfo
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- CN112607987A CN112607987A CN202011585476.8A CN202011585476A CN112607987A CN 112607987 A CN112607987 A CN 112607987A CN 202011585476 A CN202011585476 A CN 202011585476A CN 112607987 A CN112607987 A CN 112607987A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 102000004190 Enzymes Human genes 0.000 title claims abstract description 19
- 108090000790 Enzymes Proteins 0.000 title claims abstract description 19
- 239000010802 sludge Substances 0.000 claims abstract description 69
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000005273 aeration Methods 0.000 claims abstract description 27
- 239000006228 supernatant Substances 0.000 claims abstract description 8
- 210000002421 cell wall Anatomy 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 230000001954 sterilising effect Effects 0.000 claims abstract description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 10
- 239000010865 sewage Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000002518 antifoaming agent Substances 0.000 description 4
- 239000010801 sewage sludge Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- AHLBNYSZXLDEJQ-FWEHEUNISA-N orlistat Chemical compound CCCCCCCCCCC[C@H](OC(=O)[C@H](CC(C)C)NC=O)C[C@@H]1OC(=O)[C@H]1CCCCCC AHLBNYSZXLDEJQ-FWEHEUNISA-N 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
-
- 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
-
- 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
Abstract
The invention provides a system for reducing sludge by using ecological enzyme preparation, which is characterized in that the ecological enzyme preparation is added into an aeration tank, the sludge liquid in the aeration tank is subjected to biological aerobic treatment, the sludge liquid subjected to the biological aerobic treatment in the aeration tank is transferred to a pretreatment tank, the liquid in the pretreatment tank gradually rises while impurities are removed, and when the liquid level reaches an upper limit water level, the sludge liquid in the pretreatment tank is conveyed to an adjacent adjusting tank until the liquid level reaches a lower limit water level; in the settling tank, the sludge liquid is settled by gravity to generate supernatant, the supernatant is conveyed to a discharge tank through a sterilization treatment device, and the high-concentration water-containing sludge accumulated in the lower layer of the settling tank is conveyed to a sludge storage tank by a settling tank pump; the ozone mixing tank is used for storing the treated water delivered by the discharge tank through the discharge pump of the discharge tank, and generates the ultra-fine bubbles through the ultra-fine bubble device, so that the cell walls of the treated water are forcibly destroyed and decomposed, and the clean treated water capable of being discharged is generated.
Description
Technical Field
The invention relates to the technical field of sludge reduction, in particular to a system for sludge reduction by using an ecological enzyme preparation.
Background
The amount of dry sludge produced by national sewage plants is approximately 1000 million tons per year, accounting for 3% of the total amount of solid waste, and the sludge is increased at a rate of more than 10% per year. If not properly handled and disposed of in a timely manner, secondary pollution of the environment surrounding the dump and discharge area will result. However, several existing sludge treatment methods are landfill, incineration, agricultural utilization, solidification and low-temperature degradation treatment, but the treatment methods still have the technical problems of limited treatment scale, secondary pollution hidden danger and the like.
Disclosure of Invention
An object of the present invention is to provide a system for sludge reduction using an ecological enzyme preparation, which can more effectively reduce an excessive amount of sludge generated when industrial wastewater is treated in a wastewater treatment facility. The system comprises:
an aeration tank to which an ecological enzyme preparation is added to perform biological aerobic treatment on sludge liquid in the aeration tank, the aeration tank comprising a high-pressure reaction vessel in the shape of an elongated ship, the sludge liquid to be treated being fed to the top of the high-pressure reaction vessel through an aeration tank pressure pump and a sludge feed line and an inlet fitting when the high-pressure reaction vessel is in operation, the sludge liquid being uniformly distributed on the high-pressure reaction vessel through a porous substrate arranged on the top of the high-pressure reaction vessel; gas is introduced into the sludge liquid in the high-pressure reaction vessel through the gas supply line and the gas inlet nozzle, and when the high-pressure reaction vessel is suddenly released by opening the homogenizing valve, the membrane of the sludge liquid cell is ruptured by the ultrahigh-pressure gas;
a pretreatment tank to which the sludge liquid biologically aerobically treated in the aeration tank is transferred, in which the liquid gradually rises while removing impurities, and when the liquid level reaches an upper limit water level, the sludge liquid in the pretreatment tank is transferred to an adjacent adjustment tank until a lower limit water level is reached;
a settling tank in which the sludge liquid is gravity-settled to produce a supernatant, the supernatant is transferred to a discharge tank through a sterilization treatment device, and the high-concentration aqueous sludge accumulated in the lower layer of the settling tank is transferred to a sludge storage tank by a settling tank pump;
an ozone mixing tank for storing the treated water delivered from the discharge tank through the discharge pump of the discharge tank, wherein a circulating pump of the ozone mixing tank is arranged inside, and after injecting the high-concentration ozone generated by the ozone generator, the ozone generates the ultra-fine bubbles through the ultra-fine bubble device, thereby forcibly destroying and decomposing the cell walls of the treated water to generate the clean treated water which can be discharged.
The sewage treatment system further comprises a circulating mechanism, the circulating mechanism penetrates through the superfine bubble device to generate mixed wastewater into purified treated water, the ozone generator generates ozone from oxygen in air, and the air mixing pump enables mixed sewage of sludge liquid and treated water stored in the ozone mixing tank to be repeatedly circulated for a certain time under the driving of the air mixing pump through the water suction pipe and the mixing pipe.
Further, the system comprises a treated water storage tank in which a treated water pressure pump is provided, and a defoaming device which supplies a defoaming agent from the defoaming tank through a defoaming agent delivery pipe and a defoaming spray by a metering pump when bubbles are generated in the treated water storage tank, wherein the treated water produced in the ozone mixing tank is delivered to a discharge tank through a return pipe by a treated water delivery pump.
Further, the ozone removing device comprises an ozone decomposition catalyst material, and the ozone removing device is used for treating the waste ozone which is not dissolved in the mixed sewage in the ozone mixing tank after being received by the pressure feeding fan through the waste ozone transmission pipe, so that the waste ozone is discharged through the ozone discharge pipe after being lower than the specified concentration, and the ozone in the waste gas is prevented from being discharged.
Further, the aeration tank also comprises a control device and a control unit, the control device is used for controlling the pressure pump of the aeration tank, the control unit is connected to an inlet fitting and a homogenizing valve at the lower sludge outlet of the high-pressure reaction container, and a data connection exists between the control unit and the control device.
Drawings
FIG. 1 is a schematic diagram of a system for sludge reduction using the ecological enzyme preparation of the present invention;
FIG. 2 is a schematic diagram showing the detailed structure of an aeration tank;
Detailed Description
A specific embodiment of a system 1 for sludge reduction with an ecological enzyme preparation according to the invention is shown in fig. 1 to 2. Referring to fig. 1, the system 1 continuously treats excess sludge a generated when industrial wastewater generated when food is produced is treated by a wastewater treatment facility 2, and the system 1 is fixedly disposed near the wastewater treatment facility 2.
The system 1 transfers sewage containing organic wastes such as food in wastewater together with wastewater from a sludge concentration tank 15 of a wastewater treatment facility 2 by a sludge concentration pump 18 from an aeration tank 11 of the wastewater treatment facility 2 to a pretreatment tank 10 by an aeration tank pressure pump 12. In the pretreatment tank 10, the liquid gradually rises while removing impurities and the like, and when the liquid level reaches the upper limit water level, the liquid in the pretreatment tank 10 is transferred to the adjacent conditioning tank 10-1 by an intermittently operated pump (not shown) until reaching the lower limit water level. An aeration tank 11 is arranged near the adjusting tank 10-1, the sludge liquid in the aeration tank 11 is subjected to biological aerobic treatment, in the treatment process, ecological enzyme preparation is added into the aeration tank, 5KG/L ecological enzyme preparation is added at one time, the dissolved oxygen is kept at about 0.5G/L during the treatment, and the type of the ecological enzyme preparation can be selected from alli preparations or Proro preparations.
The sludge liquid in the conditioning tank is transferred to the settling tank 14-1, and in the settling tank 14-1, the sludge liquid is gravity-settled to produce a supernatant. The supernatant in the sludge tank 14-1 is transferred to the discharge tank 16 through the overflow weir 14 by the sterilization treatment device 43 and then discharged to a sewer or a drainage channel or the like. The high-concentration aqueous sludge accumulated in the lower layer of the settling tank 14-1 is intermittently and appropriately transferred to the sludge storage tank 15 by the settling tank pump 14-2.
The system 1 of the present invention comprises an ozone mixing tank 35, a circulation mechanism 44, a treated water storage tank 30, a waste ozone removing device 50, and a defoaming device 57.
The ozone mixing tank 35 stores the treated water sent by the discharge tank 16 of the wastewater treatment apparatus 2 through the discharge tank discharge pump 17, and an ozone mixing tank circulation pump 36 is provided inside the ozone mixing tank 35. The excess sludge a and the treated water are transferred from the wastewater treatment facility 2 to the ozone mixing tank 35 to be mixed, water is injected into the suction pipe 42 through the supply pipe 41 in the middle of the circulation, and ozone is generated while circulating the mixed wastewater through the suction pipe 42. After the high concentration ozone generated by the ozone generator 40 is injected, it passes through the ultrafine bubble device 47, so that ultrafine bubbles can be generated in the treated water purified by the high concentration ozone and water. The excess sludge is diluted with a certain amount of treated water and brought into contact with high-concentration ozone and ultrafine bubbles for a certain period of time to forcibly destroy and decompose cell walls, and therefore, clean treated water which can be discharged can be reliably produced. A dust screen 48 is also provided above the sludge concentration pump 18 to prevent the transfer of foreign matter together.
Further, after the high concentration ozone is generated in the injecting step, the circulating mechanism 44 passes through the ultrafine bubble device 47 to generate the mixed wastewater into the purified treated water, and the ozone generator 40 generates ozone from oxygen in the air. The air mixing pump 45 circulates the mixed sewage of the sludge a and the treated water stored in the ozone mixing tank 35 repeatedly for a certain period of time by the air mixing pump 45 through the suction pipe 42 and the mixing pipe 46.
The treated water storage tank 30 is a wastewater treatment facility, and a treated water pressure pump 31 is provided in the treated water storage tank 30, wherein treated water generated in the ozone mixing tank 35 is delivered into the treated water storage tank 30 by a treated water delivery pump 38 through a return pipe 39.
Further, when bubbles are generated in the treated water storage tank 30, the defoaming device 57 supplies a defoaming agent from the defoaming tank 55 through the defoaming agent delivery pipe 65 and the defoaming mist 37 by the metering pump 56. Thereby, the leakage of bubbles and the contamination of the surroundings can be prevented.
The waste ozone removing device 50 accommodates an ozone decomposition catalyst material, and after waste ozone in the mixed sewage which is not dissolved in the ozone mixing tank 35 is received by a pressure feed fan through the waste ozone transfer pipe 51, treated under a condition of a concentration lower than a prescribed concentration, and discharged through the ozone discharge pipe 54, ozone in the exhaust gas can be prevented from being discharged, and environmental pollution can be prevented.
Fig. 2 shows a detailed structural diagram of the aeration tank 11, and the aeration tank 11 includes an elongated high-pressure reaction vessel 11-1 in a shape of a ship. As the bubbles rise, this will concentrate oxygen, nitrogen or carbon dioxide uniformly throughout the sludge volume. In addition, the container cost can be reduced due to the thinner walls. When the high-pressure reaction vessel 11-1 is operated, sludge liquid to be treated is fed to the top of the high-pressure reaction vessel 11-1 through the aeration tank pressure pump 12 and the sludge feed line 11-3 and the inlet fitting 11-4. For example, return sludge, excess sludge, floating sludge or bulk sludge may be used as the sewage sludge to be treated. Sewage sludge is evenly distributed over the vessel through the porous substrate 11-5 arranged on top of the high pressure reaction vessel 1.
For this purpose, the control device 11-8 controls the aeration tank pressure pump 12 accordingly. Gas, in particular oxygen or nitrogen or carbon dioxide, is introduced into the sewage sludge located in the high-pressure reaction vessel 1 through the gas supply line 11-9 and the gas inlet nozzle 20. The pressure gauge 11-7, the control unit 22 and the regulator are provided with a valve 13 in the gas supply line 11-9 to control the introduction of gas. The control unit 22 is also connected to the inlet fitting 11-4 and the homogenizing valve 23 at the lower sludge outlet of the high-pressure reaction vessel 1. In addition, there is a data connection between the control unit 22 and the control means 11-8 for overall control of the method. The process of gas entering the sewage sludge is divided into two stages. The pressure in the high-pressure reaction vessel 11-1 is at most 20Pa under atmospheric pressure,
the required excess gas pressure in the high-pressure reaction vessel 11-1 is maintained for a period of several minutes to several hours, depending on the desired degree of ecological enzyme preparation. Due to the very high gas enrichment (200 times higher than at atmospheric pressure) and the associated very high concentration gradient, the dissolved gas diffuses inside the cell until the concentration reaches equilibrium. When the high pressure reaction vessel 11-1 is suddenly released by opening the homogenizing valve 23, the gas concentration in the aqueous phase drops to a saturation value at normal pressure, and the ultrahigh pressure gas causes the sludge liquid cell membrane to rupture.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A system for sludge reduction using ecological enzyme preparation, comprising:
an aeration tank to which an ecological enzyme preparation is added to perform biological aerobic treatment on sludge liquid in the aeration tank, the aeration tank comprising a high-pressure reaction vessel in the shape of an elongated ship, the sludge liquid to be treated being fed to the top of the high-pressure reaction vessel through an aeration tank pressure pump and a sludge feed line and an inlet fitting when the high-pressure reaction vessel is in operation, the sludge liquid being uniformly distributed on the high-pressure reaction vessel through a porous substrate arranged on the top of the high-pressure reaction vessel; gas is introduced into the sludge liquid in the high-pressure reaction vessel through the gas supply line and the gas inlet nozzle, and when the high-pressure reaction vessel is suddenly released by opening the homogenizing valve, the membrane of the sludge liquid cell is ruptured by the ultrahigh-pressure gas;
a pretreatment tank to which the sludge liquid biologically aerobically treated in the aeration tank is transferred, in which the liquid gradually rises while removing impurities, and when the liquid level reaches an upper limit water level, the sludge liquid in the pretreatment tank is transferred to an adjacent adjustment tank until a lower limit water level is reached;
a settling tank in which the sludge liquid is gravity-settled to produce a supernatant, the supernatant is transferred to a discharge tank through a sterilization treatment device, and the high-concentration aqueous sludge accumulated in the lower layer of the settling tank is transferred to a sludge storage tank by a settling tank pump;
an ozone mixing tank for storing the treated water delivered from the discharge tank through the discharge pump of the discharge tank, wherein a circulating pump of the ozone mixing tank is arranged inside, and after injecting the high-concentration ozone generated by the ozone generator, the ozone generates the ultra-fine bubbles through the ultra-fine bubble device, thereby forcibly destroying and decomposing the cell walls of the treated water to generate the clean treated water which can be discharged.
2. The system for sludge reduction using ecological enzyme preparation according to claim 1, wherein: the system also comprises a circulating mechanism, wherein the circulating mechanism penetrates through the superfine bubble device to generate mixed wastewater into purified treated water, the ozone generator generates ozone from oxygen in the air, and the air mixing pump enables mixed sewage of sludge liquid and treated water stored in the ozone mixing tank to be repeatedly circulated for a certain time under the driving of the air mixing pump through the water suction pipe and the mixing pipe.
3. The system for sludge reduction using ecological enzyme preparation according to claim 1, wherein: still including having handled water storage jar and fire fighting equipment, having handled and being provided with processing water pressure pump in the water storage jar, the processing water that produces in ozone mixing tank is carried to discharging the jar through the back flow by the processing water delivery pump, and when having handled and producing the bubble in the water storage jar, fire fighting equipment passes through the measuring pump from the fire fighting jar through fire fighting agent conveyer pipe and fire fighting spray supply fire fighting agent.
4. The system for sludge reduction using ecological enzyme preparation according to claim 1, wherein: and a waste ozone removing device for accommodating the ozone decomposition catalyst material, and treating the waste ozone which is not dissolved in the mixed sewage in the ozone mixing tank after being received by the pressure feed fan through the waste ozone transmission pipe, so that the waste ozone is discharged through the ozone discharge pipe after being lower than the specified concentration, thereby preventing the ozone in the waste gas from being discharged.
5. The system for sludge reduction using ecological enzyme preparation according to claim 1, wherein: the aeration tank also comprises a control device and a control unit, the control device is used for controlling the pressure pump of the aeration tank, the control unit is connected to an inlet fitting and a homogenizing valve at the lower sludge outlet of the high-pressure reaction container, and data connection exists between the control unit and the control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585476.8A CN112607987A (en) | 2020-12-29 | 2020-12-29 | System for ecological enzyme preparation is used for mud decrement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585476.8A CN112607987A (en) | 2020-12-29 | 2020-12-29 | System for ecological enzyme preparation is used for mud decrement |
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| Publication Number | Publication Date |
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| CN112607987A true CN112607987A (en) | 2021-04-06 |
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|---|---|---|---|
| CN202011585476.8A Pending CN112607987A (en) | 2020-12-29 | 2020-12-29 | System for ecological enzyme preparation is used for mud decrement |
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Citations (7)
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|---|---|---|---|---|
| CN101182092A (en) * | 2007-11-07 | 2008-05-21 | 天津大学 | Quantitative reduction method for biological sludge |
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| CN103304118A (en) * | 2012-03-15 | 2013-09-18 | 李铀 | High-pressure digestion and blasting dehydration process of sludge |
| CN103359875A (en) * | 2012-03-27 | 2013-10-23 | 三菱电机株式会社 | Waste water treatment method and waste water treatment system |
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| CN109775945A (en) * | 2019-03-07 | 2019-05-21 | 环创(厦门）科技股份有限公司 | The wall-breaking method and its means for breaking walls of domestic sludge |
| CN111807501A (en) * | 2020-07-20 | 2020-10-23 | 扬州大学 | Continuous high-concentration ozone oxidation sewage treatment device and sewage treatment method thereof |
-
2020
- 2020-12-29 CN CN202011585476.8A patent/CN112607987A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN101182092A (en) * | 2007-11-07 | 2008-05-21 | 天津大学 | Quantitative reduction method for biological sludge |
| CN101456655A (en) * | 2007-12-14 | 2009-06-17 | 清华大学 | Method for dissolving biological cell in sludge and use thereof |
| CN103304118A (en) * | 2012-03-15 | 2013-09-18 | 李铀 | High-pressure digestion and blasting dehydration process of sludge |
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| CN109020106A (en) * | 2018-10-25 | 2018-12-18 | 平顶山华兴浮选工程技术服务有限公司 | A kind of novel mud waste water processing system and method |
| CN109775945A (en) * | 2019-03-07 | 2019-05-21 | 环创(厦门）科技股份有限公司 | The wall-breaking method and its means for breaking walls of domestic sludge |
| CN111807501A (en) * | 2020-07-20 | 2020-10-23 | 扬州大学 | Continuous high-concentration ozone oxidation sewage treatment device and sewage treatment method thereof |
Non-Patent Citations (1)
| Title |
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| 陈昆柏等: "《固体废物环境管理丛书 污泥处理与处置》", 河南科学技术出版社 * |
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