CN104402184A - Multi-stage oxidization treatment technology for sludge - Google Patents
Multi-stage oxidization treatment technology for sludge Download PDFInfo
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- CN104402184A CN104402184A CN201410709058.3A CN201410709058A CN104402184A CN 104402184 A CN104402184 A CN 104402184A CN 201410709058 A CN201410709058 A CN 201410709058A CN 104402184 A CN104402184 A CN 104402184A
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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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
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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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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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
- C02F11/12—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
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a multi-stage oxidization treatment technology for sludge. The multi-stage oxidization treatment technology comprises the following steps: (1) feeding the sludge into an adjustment basin, and adding water for dilution; (2) feeding the diluted sludge into all stages of oxidization reaction basins in sequence for multi-stage oxidization reaction; (3) feeding the sludge subjected to oxidization reaction into a settling basin, and leaving to stand for layering to form dross, supernate and sediments; (4) performing pressure filtering and dewatering on the dross and the sediments to prepare sludge cakes, and returning the supernate into a water plant. According to the multi-stage oxidization treatment technology, walls of cells can be broken, so that microorganisms and germs in the sludge can be effectively subjected to wall breakage, and thus water in the cells can be released, and dewatering is facilitated; after the sludge is made into the sludge cakes, the moisture content is reduced to about 55 percent, so that the weight of the sludge cakes is greatly reduced, and the delivery cost of the sludge cakes is reduced; moreover, a complex group in the sludge can be opened, and macromolecular organic matters can be effectively decomposed and bonds of which can be broken, so that the biodegradability is obviously improved; non-toxic and harmless gas such as carbon dioxide and nitrogen is released, and the multi-stage oxidization treatment technology is clean and environment-friendly.
Description
Technical field
The present invention relates to sewage treatment area, particularly relate to a kind of method of mud oxide treatment.
Background technology
In recent years, because Environmental attention degree is more and more higher, pollutant emission requires also increasingly stringent.According to the numeral that China national Environmental Protection Administration provides, annual approximately sewage effluent 40,100,000,000 m of China at present
3, there are more than 400 seats the municipal sewage plant of built running, daily handling ability 2,534 ten thousand m
3.0.3% ~ 0.5% (in the water ratio 97%) that account for the process water yield by sludge yield calculates, and the output of Chinese city sewage plant sludge is at 7.602 ten thousand m
3/ d and 12.67 ten thousand m
3between/d (in water ratio 97%).Therefore, China, while sewage disposal cause constantly makes progress, will face huge specific resistance to filtration pressure, and carry out decrement treatment research, seem highly significant to mud.
Sludge water content comprises interstitial water, capillary water, planar water and internal water, and interstitial water is present in the water in mud granule gap, accounts for about 70% of sludge water content; Capillary water is present in the kapillary between mud granule, accounts for about 20% of sludge water content.Also likely thing is used; Planar water invests the attached water on mud granule surface, and internal water is present in the internal water of mud granule inside (comprising the water in biomass cells), and planar water and internal water account for about 10% of moisture in mud.In prior art, the main method thickened sludge adopting machinery or gravity, afterwards again by the mud outward transport after concentrated.Directly machinery is carried out to mud or gravity methods concentrates, the water ratio of mud can only be down to 80%, also abundant not to the dehydration of mud, cause mud weight large, and transport outward cost to mud weight and be directly proportional, thus the cost transporting outward mud is also relatively high.Obviously, to the method Shortcomings part of sludge treatment in prior art, must be further improved it.
Summary of the invention
The object of the invention is the shortcoming that treatment effect in order to overcome existing method for sludge treatment is undesirable, providing a kind of dehydrating effect good sludge multi-stage oxidation processing technique.
Technical solution of the present invention is: sludge multi-stage oxidation processing technique, and whole treating processes is dynamically continuous, comprises the following steps:
(1) enter mud: passed in equalizing tank by mud, and add middle water adjustment concentration;
(2) oxidizing reaction: be at least provided with two-stage oxidation reaction pond group, in every grade of oxidizing reaction pond group, at least there is an oxidizing reaction pond, when there is multiple stage oxidizing reaction pond in every grade of oxidizing reaction pond group, be between the oxidizing reaction pond in the oxidizing reaction pond group of same one-level in parallel by pipeline, be between each oxidizing reaction pond in oxidizing reaction pond group not at the same level and pass through placed in series; When only there is an oxidizing reaction pond in every grade of oxidizing reaction pond group, between each oxidizing reaction pond, pass through placed in series; Mud after concentration being adjusted afterwards first by stair oxidation reaction tank group, then passes through next stage oxidizing reaction pond group, until by last step oxidizing reaction pond group;
(3) precipitate: the mud after oxidizing reaction is passed in settling tank, stratification, form scum silica frost, supernatant liquor and throw out;
(4) throw out dehydration: by scum silica frost and throw out filter-press dehydration, make mud cake, and supernatant liquor is returned water factory.
Further, above-mentioned sludge multi-stage oxidation processing technique, wherein: passing into current density in described oxidizing reaction pond is 1-20mA/cm
2micro-electric current.
Further, above-mentioned sludge multi-stage oxidation processing technique, wherein: passing into current density in described oxidizing reaction pond is 3mA/cm
2micro-electric current.
Further, above-mentioned sludge multi-stage oxidation processing technique, wherein: the oxidizing reaction pond quantity had in described every grade of oxidizing reaction pond group is identical.
Further, above-mentioned sludge multi-stage oxidation processing technique, wherein: described oxidizing reaction pond group is provided with three grades, wherein be provided with five oxidizing reaction ponds in stair oxidation reaction tank group, five oxidizing reaction ponds are provided with in secondary oxidation reaction tank group, be provided with five oxidizing reaction ponds in tertiary oxidation reaction tank group, in each oxidizing reaction pond described, pass into 3mA/ cm
2micro-electric current.
Further, above-mentioned sludge multi-stage oxidation processing technique, wherein: described oxidizing reaction pond at different levels is arranged at different height, the oxidizing reaction pond of next stage is arranged at immediately below upper level oxidizing reaction pond.
Again further, above-mentioned sludge multi-stage oxidation processing technique, wherein: described oxidizing reaction pond comprises container and at least one pair of electrode, and the both sides, front and back of described container arrange import and outlet respectively, the anode of described electrode connects positive source, and the negative electrode of electrode connects power cathode; A pair baffle plate and a pair internal partition is separately established in described oxidizing reaction pond, a pair baffle plate is arranged at the both sides, front and back of internal tank respectively, a pair internal partition is arranged at the left and right sides of internal tank respectively, a scum silica frost froth overflow channel is formed between internal partition and the sidewall of container, scum silica frost foam drainage mouth is provided with below scum silica frost froth overflow channel, scum silica frost foam drainage mouth is connected with pump, passes in settling tank by pump by scum silica frost and foam; Described baffle plate and internal partition surround oxidation reaction zone, and described electrode is inserted in oxidation reaction zone.
Again further, above-mentioned sludge multi-stage oxidation processing technique, wherein: be provided with ultrasonic instrument in described oxidizing reaction pond, for abolishing larger particles cleaning vessel.
The substantive distinguishing features that the present invention gives prominence to and significant technical progress are mainly reflected in: (1) sludge multi-stage oxidation processing technique provided by the present invention can make cell wall breaking, to make in mud microorganism and bacterium by effective broken wall, thus discharge intracellular water, be convenient to dehydration, the moisture content of the cake finally made is made to be down to about 55%, greatly reduce the weight of mud cake, save mud cake outward transport cost; (2) in mud, complexing group is opened, the effective scission of link Sum decomposition of larger molecular organics, and biodegradability significantly improves; And discharge the nontoxic gas such as carbonic acid gas, nitrogen, clean environmental protection.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of sludge multi-stage oxidation processing technique of the present invention;
Fig. 2 is the schematic diagram of sludge multi-stage oxidation processing technique multi-stage oxidizing reaction tank group setting method of the present invention;
Fig. 3 is oxidizing reaction pond side-view;
Fig. 4 is oxidizing reaction pond front cross-sectional view.
In figure, the implication of each Reference numeral is: 1-equalizing tank, 2-stair oxidation reaction tank group, 3-secondary oxidation reaction tank group, 4-tertiary oxidation reaction tank group, 5-settling tank, 6-pressure filter, the existing treatment system of 7-sewage work, 8-pump, 9-import, 10-container, 11-baffle plate, 12-electrode, 13-outlet, 14-oxidation reaction zone, 15-internal partition, 16-scum silica frost froth overflow channel, 17-scum silica frost foam drainage mouth.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, is easier to make technical solution of the present invention understand and grasp.
As shown in Figure 1, sludge multi-stage oxidation processing technique of the present invention comprises the following steps: (1) enters mud: pass into equalizing tank 1 by sewage work without the mud of any process, and in equalizing tank, pass into water by pump 8, by on-line control system, moisture percentage in sewage sludge is adjusted to 96.0%-99.6%, (2) oxidizing reaction: the mud after concentration being adjusted is by oxidizing reaction pond, oxidizing reaction pond component is stair oxidation reaction tank group 2, secondary oxidation reaction tank group 3 and tertiary oxidation reaction tank group 4, every grade of oxidizing reaction pond group is consisted of pipeline parallel connection multiple stage oxidizing reaction pond, stair oxidation reaction tank group 2, connected successively by pipeline between each oxidizing reaction pond in secondary oxidation reaction tank group 3 and tertiary oxidation reaction tank group 4, control mud flow velocity, first by stair oxidation reaction tank group 2, again by secondary oxidation reaction tank group 3, oxidizing reaction is carried out finally by tertiary oxidation reaction tank group 4, (3) precipitate: the mud after oxidizing reaction is passed in settling tank 5, and leave standstill in settling tank 5, scum silica frost, supernatant liquor and throw out layering, (4) throw out dehydration: scum silica frost and throw out are passed into pressure filter 6 by pump 8, pressure filter 6 pairs of throw outs carry out filter-press dehydration, make mud cake, finally supernatant liquor returned water factory and supernatant liquor passed into the existing treatment system 7 of sewage work, whole treating processes is dynamically continuous.It should be noted that, oxidizing reaction pond quantity in the progression of oxidizing reaction pond group arranged and every grade of oxidizing reaction pond group can be adjusted according to practical situation, such scheme is only preferred, such as be provided with tertiary oxidation reaction tank group, every grade of oxidizing reaction pond group only has an oxidizing reaction pond, is connected in three oxidizing reaction ponds.
Oxidizing reaction pool structure as shown in Figures 3 and 4, oxidizing reaction pond comprises container 10, import 9, outlet 13 and Duo Gen electrode 12, import 9 and outlet 13 are arranged at the both sides, front and back of container respectively, a pair baffle plate 11 and a pair internal partition 15 is provided with in container 10, a pair baffle plate 11 is arranged at the both sides, front and back of container 10 inside respectively, a pair internal partition 15 is arranged at the left and right sides of container 10 inside respectively, a scum silica frost froth overflow channel 16 is formed between the sidewall of internal partition 15 and container 10, scum silica frost foam drainage mouth 17 is provided with below scum silica frost froth overflow channel 16, scum silica frost foam drainage mouth 17 is connected with pump 8, by pump 8, scum silica frost and foam are passed in settling tank 5.Baffle plate 11 and internal partition 15 surround oxidation reaction zone 14, and electrode 12 is inserted in oxidation reaction zone 14, and the arrangement mode of electrode 12 is press from both sides an anode electrode between two cathode electrodes.Wherein electrode anode connects positive source, and electrode cathode connects power cathode, and it is 1-20mA/cm that electrode anode and electrode cathode all pass into current density
2micro-electric current, the current density passed into is larger, and sludge treatment effect is better, but along with the increase of current density, electrode life reduces, and process costs is also corresponding to be increased.Oxidizing reaction is separately provided with ultrasonic unit in pond, for abolishing larger particles cleaning vessel.
When oxidizing reaction pond is set, can the oxidizing reaction pond group of next stage be arranged at immediately below the group of upper level oxidizing reaction pond, flow in the group of subordinate's oxidizing reaction pond under making the effect of the mud after the group process of higher level's oxidizing reaction pond at self gravitation voluntarily, as shown in Figure 2, secondary oxidation reaction tank group 3 is arranged at immediately below stair oxidation reaction tank group 2, and tertiary oxidation reaction tank group 4 is arranged at immediately below secondary oxidation reaction tank group 3.
embodiment 1
The oxidizing reaction pool volume used is 120 liters, sewage work is passed into equalizing tank 1 without the mud of any process, passes into middle water, make moisture percentage in sewage sludge be adjusted to 99.0% ~ 99.6% to equalizing tank 1; 15 oxidizing reaction ponds are set, wherein stair oxidation reaction tank group 2 comprises five oxidizing reaction ponds, secondary oxidation reaction tank group 3 comprises five oxidizing reaction ponds, tertiary oxidation reaction tank 4 comprises five oxidizing reaction ponds, by the mud after regulating according to the flow velocity of 0.6 cubic meter/hour successively by stair oxidation reaction tank group 2, secondary oxidation reaction tank group 3 and tertiary oxidation reaction tank group 4, the current density of the micro-electric current connected in oxidizing reaction pond is 3mA/cm
2mud is successively by after the group of oxidizing reaction ponds at different levels, converge in settling tank 5, and the little layered of 4-12 is left standstill in settling tank, form scum silica frost, supernatant liquor and throw out, pass in pressure filter 6 by scum silica frost and throw out by pump 8, pressure filter 6 pairs of scum silica frost and throw out carry out filter press dehydration and make mud cake, and supernatant liquor is returned water factory, and pass into the existing treatment system 7 of sewage work.After reaction, mixed solution sludge concentration (MLSS) clearance reaches 43.4%, and the clearance of chemical oxygen demand (COD) (COD) reaches 39.9%, and the pH value of former mud is meta-alkalescence (>7.4), unsaturation carbonic acid soln is become, pH value slightly acid (6.0-6.9) after reaction; Former mud biochemical oxygen demand (BOD) (BOD) and chemical oxygen demand (COD) (COD) ratio are generally at 0.2-0.3; After reaction, the ratio of the COD of solvent portions is 0.42.
embodiment 2
The oxidizing reaction pool volume used is 750 liters, sewage work is passed into equalizing tank 1 without the mud of any process, passes into middle water, make moisture percentage in sewage sludge be adjusted to 99.0% ~ 99.6% to equalizing tank 1; 15 oxidizing reaction ponds are set, wherein stair oxidation reaction tank group 2 comprises five oxidizing reaction ponds, secondary oxidation reaction tank group 3 comprises five oxidizing reaction ponds, tertiary oxidation reaction tank group 4 comprises five oxidizing reaction ponds, by the mud after regulating according to the flow velocity of 2 cubic meters/hour successively by stair oxidation reaction tank group 2, secondary oxidation reaction tank group 3 and tertiary oxidation reaction tank group 4, the current density of the micro-electric current connected in oxidizing reaction pond is 3mA/cm
2mud is successively by after the group of oxidizing reaction pond, converge in settling tank 5, and the little layered of 4-12 is left standstill in settling tank, form scum silica frost, supernatant liquor and throw out, pass in pressure filter 6 by scum silica frost and throw out by pump 8, pressure filter 6 pairs of scum silica frost and throw out carry out filter press dehydration and make mud cake, and supernatant liquor is returned water factory, and pass into the existing treatment system 7 of sewage work.After reaction, mixed solution sludge concentration (MLSS) clearance reaches 34.6%, and the pH value of former mud is meta-alkalescence (>7.4), becomes unsaturation carbonic acid soln after reaction, pH value slightly acid (6.0-6.9).
The multi-stage oxidizing technology that the present invention adopts is that modified metal battery lead plate is under the effect of external electric field, utilize the water molecules in energetic particle beam bombardment mud, water molecules is ionized, generate ion, excite molecule, secondary electron, these radiation products can interact and produce the extremely strong material of response capacity, such as OH free radical, O, O before Medium Diffusion towards periphery
2 -with H, H
2o
2, particularly obtain the special hydroxyl radical free radical exciting situation in a large number.This hydroxyl radical free radical has strong oxidizing property, and it can produce following positive effect:
(1) cell wall breaking: can promptly to penetrate in mud in organic cell walls, to make in mud microorganism and bacterium by effective broken wall, thus discharges intracellular water;
(2) direct oxidation: be used for attacking unsaturated compounds (comprising olefines, ethers, unsaturated aliphatic hydrocarbon, arene etc.) and ammonia nitrogen NH
3-N, making it change becomes small organic molecule, thus effectively removes poisonous and hardly degraded organic substance;
(3) other effect: can effectively organics removal, bacterium, colourity, smell taste etc., assist heavy metal adsorption and sedimentation;
(4) environmental friendliness: reaction product is mainly the nontoxic gas such as carbonic acid gas, nitrogen, it is on surrounding environment without any impact, and comparing other Sludge Reduction Technologies has obvious superiority.
After reaction, the moisture content of the cake made is reduced to about 55%, and the pH value of former mud is meta-alkalescence (>7.4), and become unsaturation carbonic acid soln after reaction, pH value is less than 6.9.Closed sampling has been carried out to the gas in the bubble in reaction after-bay, and as follows by mass chromatography instrumental analysis gaseous constituent: (1) nitrogen and oxygen account for 91.2%; (2) CO
2account for 8.6%; (3) toluene (0.14%), the CH of trace is had
3cl
3, HBrCl
2and mononuclear aromatics etc.; (4) inflammable gas such as hydrogen and methane is few.CO in air
2normal contents be 0.03%, and present CO
2content reach 8.6% explanation have large amount of organic through peroxidation pond oxidation generate CO2.Former mud biochemical oxygen demand (BOD) (BOD) and chemical oxygen demand (COD) (COD) ratio are generally at 0.2-0.3; After reaction, the ratio of the BOD/COD of solvent portions is 0.42; This is talkative clear-cells broken wall, biomass generation scission of link also, and after reaction, mud biochemical rate can obtain obvious raising.Micro-electric current advanced oxidation effectively can cut down COD on the one hand, comprises macromole hardly degraded organic substance.On the other hand, the product after chain rupture, based on small organic molecule, is more easily separated with air supporting effect by absorption, is convenient to subsequent biological treatment from former mud.
Be more than representative instance of the present invention, in addition, the present invention can also have other multiple embodiment, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the scope of protection of present invention.
Claims (8)
1. sludge multi-stage oxidation processing technique, whole treating processes is dynamically continuous, it is characterized in that comprising the following steps:
(1) enter mud: passed in equalizing tank by mud, and add middle water adjustment concentration;
(2) oxidizing reaction: be at least provided with two-stage oxidation reaction pond group, in every grade of oxidizing reaction pond group, at least there is an oxidizing reaction pond, when there is multiple stage oxidizing reaction pond in every grade of oxidizing reaction pond group, be between the oxidizing reaction pond in the oxidizing reaction pond group of same one-level in parallel by pipeline, be between each oxidizing reaction pond in oxidizing reaction pond group not at the same level and pass through placed in series; When only there is an oxidizing reaction pond in every grade of oxidizing reaction pond group, between each oxidizing reaction pond, pass through placed in series; Mud after concentration being adjusted afterwards first by stair oxidation reaction tank group, then passes through next stage oxidizing reaction pond group, until by last step oxidizing reaction pond group;
(3) precipitate: the mud after oxidizing reaction is passed in settling tank, stratification, form scum silica frost, supernatant liquor and throw out;
(4) throw out dehydration: by scum silica frost and throw out filter-press dehydration, make mud cake, and supernatant liquor is returned water factory.
2. sludge multi-stage oxidation processing technique according to claim 1, is characterized in that: passing into current density in described oxidizing reaction pond is 1-20mA/cm
2micro-electric current.
3. sludge multi-stage oxidation processing technique according to claim 2, is characterized in that: passing into current density in described oxidizing reaction pond is 3mA/cm
2micro-electric current.
4. sludge multi-stage oxidation processing technique according to claim 1, is characterized in that: the oxidizing reaction pond quantity had in described every grade of oxidizing reaction pond group is identical.
5. sludge multi-stage oxidation processing technique according to claim 3, it is characterized in that: described oxidizing reaction pond group is provided with three grades, wherein be provided with five oxidizing reaction ponds in stair oxidation reaction tank group, five oxidizing reaction ponds are provided with in secondary oxidation reaction tank group, be provided with five oxidizing reaction ponds in tertiary oxidation reaction tank group, in each oxidizing reaction pond described, pass into 3mA/ cm
2micro-electric current.
6. sludge multi-stage oxidation processing technique according to claim 1, is characterized in that: described oxidizing reaction pond group not at the same level is arranged at different height, and the oxidizing reaction pond group of next stage is arranged at immediately below the group of upper level oxidizing reaction pond.
7. sludge multi-stage oxidation processing technique according to claim 1, it is characterized in that: described oxidizing reaction pond comprises container and at least one pair of electrode, the both sides, front and back of described container arrange import and outlet respectively, and the anode of described electrode connects positive source, and the negative electrode of electrode connects power cathode; A pair baffle plate and a pair internal partition is separately established in described oxidizing reaction pond, a pair baffle plate is arranged at the both sides, front and back of internal tank respectively, a pair internal partition is arranged at the left and right sides of internal tank respectively, a scum silica frost froth overflow channel is formed between internal partition and the sidewall of container, scum silica frost foam drainage mouth is provided with below scum silica frost froth overflow channel, scum silica frost foam drainage mouth is connected with pump, passes in settling tank by pump by scum silica frost and foam; Described baffle plate and internal partition surround oxidation reaction zone, and described electrode is inserted in oxidation reaction zone.
8. sludge multi-stage oxidation processing technique according to claim 7, is characterized in that: be provided with ultrasonic instrument in described oxidizing reaction pond, for abolishing larger particles cleaning vessel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709058.3A CN104402184A (en) | 2014-11-28 | 2014-11-28 | Multi-stage oxidization treatment technology for sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410709058.3A CN104402184A (en) | 2014-11-28 | 2014-11-28 | Multi-stage oxidization treatment technology for sludge |
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| CN104402184A true CN104402184A (en) | 2015-03-11 |
Family
ID=52639871
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| CN201410709058.3A Pending CN104402184A (en) | 2014-11-28 | 2014-11-28 | Multi-stage oxidization treatment technology for sludge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587537A (en) * | 2017-01-05 | 2017-04-26 | 广东思绿环保工程有限公司 | Integrated equipment for high-concentration wastewater treatment |
| CN112919764A (en) * | 2020-12-08 | 2021-06-08 | 北京师范大学 | Method for innocent treatment of sludge containing endotoxin in sewage treatment plant |
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| JPH1119696A (en) * | 1997-06-27 | 1999-01-26 | Nkk Corp | Treatment of sludge waste water and water purifier |
| CN1274686A (en) * | 2000-06-16 | 2000-11-29 | 清华大学 | Electrical sludge-dewatering equipment with horizontal electric field |
| CN101054238A (en) * | 2007-05-29 | 2007-10-17 | 郑永旭 | Method and device for treating flowing polluted water body |
| CN102730925A (en) * | 2012-06-14 | 2012-10-17 | 常州浩瀚新材料科技有限公司 | Reaction processor for directly oxidizing residual sludge by using micro-currents |
| CN202898181U (en) * | 2012-06-14 | 2013-04-24 | 常州浩瀚新材料科技有限公司 | Fast and safe treatment device of excess sludge after sewage treatment |
-
2014
- 2014-11-28 CN CN201410709058.3A patent/CN104402184A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1119696A (en) * | 1997-06-27 | 1999-01-26 | Nkk Corp | Treatment of sludge waste water and water purifier |
| CN1274686A (en) * | 2000-06-16 | 2000-11-29 | 清华大学 | Electrical sludge-dewatering equipment with horizontal electric field |
| CN101054238A (en) * | 2007-05-29 | 2007-10-17 | 郑永旭 | Method and device for treating flowing polluted water body |
| CN102730925A (en) * | 2012-06-14 | 2012-10-17 | 常州浩瀚新材料科技有限公司 | Reaction processor for directly oxidizing residual sludge by using micro-currents |
| CN202898181U (en) * | 2012-06-14 | 2013-04-24 | 常州浩瀚新材料科技有限公司 | Fast and safe treatment device of excess sludge after sewage treatment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587537A (en) * | 2017-01-05 | 2017-04-26 | 广东思绿环保工程有限公司 | Integrated equipment for high-concentration wastewater treatment |
| CN106587537B (en) * | 2017-01-05 | 2020-07-17 | 广东思绿环保工程有限公司 | High-concentration wastewater treatment integrated equipment |
| CN112919764A (en) * | 2020-12-08 | 2021-06-08 | 北京师范大学 | Method for innocent treatment of sludge containing endotoxin in sewage treatment plant |
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Application publication date: 20150311 |
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