CN106746440A - The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration - Google Patents
The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration Download PDFInfo
- Publication number
- CN106746440A CN106746440A CN201710036418.1A CN201710036418A CN106746440A CN 106746440 A CN106746440 A CN 106746440A CN 201710036418 A CN201710036418 A CN 201710036418A CN 106746440 A CN106746440 A CN 106746440A
- Authority
- CN
- China
- Prior art keywords
- sludge
- drilling
- oxidation
- ultrasonic
- drilling sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to the preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration, drilling sludge is placed in container, to addition persulfate and activator in drilling sludge, open agitating device and be stirred reaction, at the same time, above-mentioned sludge is placed in carries out Ultrasonic Radiation in ultrasonic reactor, complete oxidation reaction pretreatment.Drilling sludge after treatment is carried out into filter dehydration process, drilling sludge resistivity and filter cake moisture content is determined.After before processing dehydrating effect contrast display, after treatment relative to before processing sludge specific resistance by 3.29 × 1013M/kg is reduced to 0.93 × 1013~1.71 × 1013M/kg, filter cake moisture content is reduced to 30.16%~31.98% by 35.04%.The method process is simple, can effectively reduce drilling sludge volume, reduce the cost and difficulty of subsequent treatment, improve sludge dewatering effect.
Description
Technical field
The invention belongs to technical field of sludge treatment.Specifically related to a kind of ultrasonic synergistic potentiometric titrations oxidation drilling well
The preprocess method of sludge reinforcing dehydration.
Background technology
With the increase of drilling depth, various organic colloid protecting resistances be applied in drilling mud improve drilling mud performance and
Control filtrate is lost in.After the completion of drillng operation, substantial amounts of drilling sludge is generated therewith, unprocessed direct discharge will be to environment
Cause severe contamination.Conventional method for innocent treatment, either fills out in chemosetting treatment, drying and incinerating treatment or hole
Bury, carry out all saving more multiple resource on the premise of drilling sludge minimizing.Therefore, it is necessary to be dehydrated to drilling sludge
Decrement treatment.Due to drilling sludge complicated component, containing water, clay mineral, heavy metal and various organic additives etc., it is presented steady
Fixed colloid-suspended state, the irreducible water being included in sludge flco is difficult to discharge, and causes its mechanical dewatering process very
It is difficult.
Potentiometric titrations are a kind of high mars free radicals, with redox potential higher, can be by heat, light spoke
Penetrate, the activation persulfate such as transition metal is decomposed and produced, can the efficient oxidation degradable organic pollutant.For using sulfate radical freedom
The research of base oxidation pre-treatment sludge reinforcing dehydration, at home and abroad just rose in recent years.Zhen etc. uses Fe2+Activation S2O8 2-Adjust
Reason sludge serves good dehydrating effect.Its Main Function mechanism is to destroy the flocculation structure of sludge, discharges constraint therein
Water, so as to improve the dewatering of sludge.
Ultrasonication sludge technology has obtained extensive research, it have it is easy to operate, be swift in response and environment friend
The advantages of good.Ul-trasonic irradiation can produce the moment rupture of cavitation effect, cavitation bubble to produce localized hyperthermia high in sludge system
Pressure can trigger a series of physical chemical change, produce shearing force and hydroxyl radical free radical higher, difficult degradation in degradable sludge
Organic matter, destroys the structure of flco, changes flco characteristic.Meanwhile, ultrasonic wave can effectively improve chemical reaction efficiency, shorten anti-
Between seasonable.
In terms of drilling sludge treatment, mainly strengthen dehydration by adding the method for flocculant, although this method is one
Determine that the rate of filtration can be improved in degree, but the irreducible water being wrapped around in sludge flco is difficult to discharge, it is impossible to effectively
Ground reduces the moisture content of filter cake.Therefore, the reinforcing for drilling sludge is dehydrated, it is necessary to carry out the research and application of new technology.
At present, there is not yet by ultrasonic synergistic potentiometric titrations aoxidize drilling sludge, strengthen its dehydration pertinent literature and specially
Profit is open.
The content of the invention
For drilling sludge complicated component, stable system, the problem that is dehydrated is difficult to, it is a primary object of the present invention to provide
A kind of preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration, having in the sludge that is used to degrade
Machine thing, breaks the stabilising system of sludge, and irreducible water in release sludge flco reduces Specific Cake and moisture content, improves sludge and take off
Water effect.The method process is simple, can effectively reduce drilling sludge volume, reduce the cost and difficulty of subsequent treatment.
The present invention is adopted the following technical scheme that：
The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration, specifically includes following step
Suddenly：
Drilling sludge is placed in container, to persulfate and activator is added in drilling sludge, agitating device is opened and is entered
Row stirring reaction, at the same time, above-mentioned sludge is placed in carries out Ultrasonic Radiation in ultrasonic reactor, completes oxidation reaction and locates in advance
Reason.
The persulfate is sodium peroxydisulfate, potassium peroxydisulfate, ammonium persulfate；
The activator is transition-containing metal ion Fe2+、Co2+、Mn2+Soluble metallic salt or its oxide；
The addition of the persulfate is the 1~5% of mud dry weight, the dosage of activator for mud dry weight 0.5~
4.5%；
The supersonic frequency is 20~100kHz；
The speed of agitator is 100~500rpm；
The oxidation reaction reaction time is 10~70min；
After the completion of oxidation pre-treatment, the drilling sludge after treatment is carried out into filter dehydration process, determine drilling sludge resistivity
And filter cake moisture content.Dehydrating effect contrast display after before processing, after treatment relative to before processing sludge specific resistance by 3.29 ×
1013M/kg is reduced to 0.93 × 1013~1.71 × 1013M/kg, filter cake moisture content is reduced to 30.16% by 35.04%~
31.98%.The present invention can effectively reduce resistivity and filter cake moisture content, strengthen the dehydration of drilling sludge.
The present invention using the potentiometric titrations of activator activation persulfate generation under neutral and alkaline environment for
Organic pollution still has preferably selectivity, compared to hydroxyl radical free radical, is influenceed small by pH, and redox potential is high to wait special
Point, the organic matter in the drilling sludge that can effectively degrade, breaks the intrinsic colloidal dispersion of drilling sludge, in promoting drilling sludge
Irreducible water is converted to the Free water that can be removed, so as to strengthen the dehydrating effect of drilling sludge.Using the synergy of ultrasonic wave, one
The hydroxyl radical free radical that aspect ultrasonic procedure is produced can degrade some organic pollutants, on the other hand, the Special Ring that ultrasound is provided
Border can make that oxidation reaction carries out more fully thoroughly, while effectively shortening the reaction time, play what reinforcing drilling sludge was cracked
Effect.
Brief description of the drawings
Fig. 1：Schematic flow sheet of the invention；
Fig. 2：Drilling sludge dehydrating effect comparison diagram.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment, but should be noted that these realities
Apply example and be merely to illustrate system and method for the invention, and this can not be scope of the invention is limited to.
Embodiment 1：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 1% of mud dry weight and 0.5% mass ratio respectively
Sodium and ferrous sulfate.Agitator is opened, speed of agitator is 300rpm.At the same time, opening ultrasonic reactor is carried out at ultrasonic wave
Reason, supersonic frequency is 20kHz, and ultrasonic power is 40W.Oxidation time is 10min.Sludge is placed in vacuum apparatus
Filtering means dehydration treatment is carried out under the pressure of -100KPa, Specific Cake and moisture content is determined.Measurement result shows, the present embodiment
In terms of dewatering performance of sludge is improved, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.71 ×
1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 31.98% (as shown in Figure 2).
Embodiment 2：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 3% of mud dry weight and 2.5% mass ratio respectively
Sodium and ferrous sulfate.Agitator is opened, speed of agitator is 300rpm.At the same time, opening ultrasonic reactor is carried out at ultrasonic wave
Reason, supersonic frequency is 60kHz, and ultrasonic power is 40W.Oxidation time is 40min.Sludge is placed in vacuum apparatus
Filtering means dehydration treatment is carried out under the pressure of -100KPa, Specific Cake and moisture content is determined.Measurement result shows, the present embodiment
In terms of dewatering performance of sludge is improved, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 0.93 ×
1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 30.16% (as shown in Figure 2).
Embodiment 3：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 5% of mud dry weight and 4.5% mass ratio respectively
Sodium and ferrous sulfate.Agitator is opened, speed of agitator is 300rpm.At the same time, opening ultrasonic reactor is carried out at ultrasonic wave
Reason, supersonic frequency is 100kHz, and ultrasonic power is 40W.Oxidation time is 70min.Sludge is placed in vacuum apparatus
In carry out filtering means dehydration treatment under the pressure of -100KPa, determine Specific Cake and moisture content.Measurement result shows, this implementation
Example in terms of dewatering performance of sludge is improved, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.19
×1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 31.03% (as shown in Figure 2).
Embodiment 4：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 1% of mud dry weight and 0.5% mass ratio respectively
Potassium and cobaltous sulfate.Agitator is opened, speed of agitator is 500rpm.At the same time, opening ultrasonic reactor carries out ultrasonication,
Supersonic frequency is 20kHz, and ultrasonic power is 40W.Oxidation time is 10min.By sludge be placed in vacuum apparatus-
Filtering means dehydration treatment is carried out under the pressure of 100KPa, Specific Cake and moisture content is determined.Measurement result shows that the present embodiment is changing
Kind dewatering performance of sludge aspect, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.42 ×
1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 31.44% (as shown in Figure 2).
Embodiment 5：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 3% of mud dry weight and 2.5% mass ratio respectively
Potassium and manganese sulfate.Agitator is opened, speed of agitator is 100rpm.At the same time, opening ultrasonic reactor carries out ultrasonication,
Supersonic frequency is 60kHz, and ultrasonic power is 40W.Oxidation time is 40min.By sludge be placed in vacuum apparatus-
Filtering means dehydration treatment is carried out under the pressure of 100KPa, Specific Cake and moisture content is determined.Measurement result shows that the present embodiment is changing
Kind dewatering performance of sludge aspect, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.02 ×
1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 30.67% (as shown in Figure 2).
Embodiment 6：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 5% of mud dry weight and 4.5% mass ratio respectively
Potassium and ferrous sulfate.Agitator is opened, speed of agitator is 100rpm.At the same time, opening ultrasonic reactor is carried out at ultrasonic wave
Reason, supersonic frequency is 100kHz, and ultrasonic power is 40W.Oxidation time is 70min.Sludge is placed in vacuum apparatus
In carry out filtering means dehydration treatment under the pressure of -100KPa, determine Specific Cake and moisture content.Measurement result shows, this implementation
Example in terms of dewatering performance of sludge is improved, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.16
×1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 30.99% (as shown in Figure 2).
Embodiment 7：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 1% of mud dry weight and 0.5% mass ratio respectively
Sodium and cobalt oxide.Agitator is opened, speed of agitator is 500rpm.At the same time, opening ultrasonic reactor carries out ultrasonication,
Supersonic frequency is 20kHz, and ultrasonic power is 40W.Oxidation time is 10min.By sludge be placed in vacuum apparatus-
Filtering means dehydration treatment is carried out under the pressure of 100KPa, Specific Cake and moisture content is determined.Measurement result shows that the present embodiment is changing
Kind dewatering performance of sludge aspect, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.56 ×
1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 31.63% (as shown in Figure 2).
Embodiment 8：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 3% of mud dry weight and 2.5% mass ratio respectively
Sodium and manganese oxide.Agitator is opened, speed of agitator is 300rpm.At the same time, opening ultrasonic reactor carries out ultrasonication,
Supersonic frequency is 60kHz, and ultrasonic power is 40W.Oxidation time is 40min.By sludge be placed in vacuum apparatus-
Filtering means dehydration treatment is carried out under the pressure of 100KPa, Specific Cake and moisture content is determined.Measurement result shows that the present embodiment is changing
Kind dewatering performance of sludge aspect, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.03 ×
1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 30.20% (as shown in Figure 2).
Embodiment 9：
Drilling sludge takes from certain oil field.According to technology path as shown in Figure 1, the sludge for taking 50mL is placed in agitator
In container, and container is placed in ultrasonic reactor, persulfuric acid is added with the 5% of mud dry weight and 4.5% mass ratio respectively
Ammonium and ferrous oxide.Agitator is opened, speed of agitator is 300rpm.At the same time, opening ultrasonic reactor is carried out at ultrasonic wave
Reason, supersonic frequency is 100kHz, and ultrasonic power is 40W.Oxidation time is 70min.Sludge is placed in vacuum apparatus
In carry out filtering means dehydration treatment under the pressure of -100KPa, determine Specific Cake and moisture content.Measurement result shows, this implementation
Example in terms of dewatering performance of sludge is improved, sludge filter cake resistivity never oxidation-treated 3.29 × 1013M/kg is reduced to 1.21
×1013m/kg.Filter cake moisture content never oxidation-treated 35.04% is reduced to 31.11% (as shown in Figure 2).
Applicant states that a kind of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing proposed by the present invention is dehydrated
Preprocess method, be described by above-described embodiment.For those of ordinary skill in the art in described above
On the basis of can also make other changes in different forms.There is no need and unable to give thoroughly all of implementation method
Lift.All similar replacements and change are apparent to those skilled in the art, and they are considered as being included in
In the scope of the present invention and content.
Claims (8)
1. the preprocess method that the reinforcing of ultrasonic synergistic potentiometric titrations oxidation drilling sludge is dehydrated, it is characterized in that drilling well is dirty
Mud is placed in container, to persulfate and activator is added in drilling sludge, is opened agitating device and is stirred reaction, will be above-mentioned
Sludge is placed in and Ultrasonic Radiation is carried out in ultrasonic reactor, completes oxidation reaction pretreatment.
2. the method for claim 1, it is characterized in that the persulfate is sodium peroxydisulfate, potassium peroxydisulfate or persulfuric acid
Ammonium.
3. the method for claim 1, it is characterized in that the activator is transition-containing metal ion Fe2+、Co2+、Mn2+'s
Soluble metallic salt or its oxide.
4. the method for claim 1, it is characterized in that the addition of the persulfate is the 1~5% of mud dry weight.
5. the method for claim 1, it is characterized in that the dosage of the activator is the 0.5~4.5% of mud dry weight.
6. the method for claim 1, it is characterized in that the supersonic frequency is 20~100kHz.
7. the method for claim 1, it is characterized in that the speed of agitator is 100~500rpm.
8. the method for claim 1, it is characterized in that the oxidation reaction reaction time is 10~70min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036418.1A CN106746440A (en) | 2017-01-17 | 2017-01-17 | The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710036418.1A CN106746440A (en) | 2017-01-17 | 2017-01-17 | The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106746440A true CN106746440A (en) | 2017-05-31 |
Family
ID=58944436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710036418.1A Pending CN106746440A (en) | 2017-01-17 | 2017-01-17 | The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106746440A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892354A (en) * | 2018-08-01 | 2018-11-27 | 成都诺德源环保科技有限公司 | A kind of method of municipal sludge dehydration |
| CN109485229A (en) * | 2017-09-08 | 2019-03-19 | 湖南大学 | A kind of method that sludge deep conditioning is dehydrated while recycling conditioning activator |
| CN110467332A (en) * | 2019-09-17 | 2019-11-19 | 北京林业大学 | A kind of efficient sludge conditioning and dewatering |
| CN111333294A (en) * | 2020-03-17 | 2020-06-26 | 宁波财经学院 | Excess sludge pretreatment device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0975956A (en) * | 1995-09-08 | 1997-03-25 | Kurita Water Ind Ltd | Decomposition removing method of organic material |
| CN102010052A (en) * | 2010-09-15 | 2011-04-13 | 济南大学 | Method for treating organic sewage by synergy of cavitation effect and sulfuric acid free radicals |
| CN103539249A (en) * | 2012-07-16 | 2014-01-29 | 上海市环境科学研究院 | Water treatment method based on activation of persulfate and oxidation with ultrasonic waves |
| CN104193127A (en) * | 2014-09-23 | 2014-12-10 | 安徽工程大学 | Method for treating surplus sludge produced after biological treatment of wastewater |
| CN104649533A (en) * | 2015-02-05 | 2015-05-27 | 宇星科技发展(深圳)有限公司 | Compound conditioning and deep dewatering method of sludge |
| CN105502882A (en) * | 2015-11-30 | 2016-04-20 | 攀枝花学院 | Method for improving municipal sludge dewatering performance |
| CN106242014A (en) * | 2016-06-22 | 2016-12-21 | 湘潭大学 | A kind of persulfate activation method processed for waste water |
-
2017
- 2017-01-17 CN CN201710036418.1A patent/CN106746440A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0975956A (en) * | 1995-09-08 | 1997-03-25 | Kurita Water Ind Ltd | Decomposition removing method of organic material |
| CN102010052A (en) * | 2010-09-15 | 2011-04-13 | 济南大学 | Method for treating organic sewage by synergy of cavitation effect and sulfuric acid free radicals |
| CN103539249A (en) * | 2012-07-16 | 2014-01-29 | 上海市环境科学研究院 | Water treatment method based on activation of persulfate and oxidation with ultrasonic waves |
| CN104193127A (en) * | 2014-09-23 | 2014-12-10 | 安徽工程大学 | Method for treating surplus sludge produced after biological treatment of wastewater |
| CN104649533A (en) * | 2015-02-05 | 2015-05-27 | 宇星科技发展(深圳)有限公司 | Compound conditioning and deep dewatering method of sludge |
| CN105502882A (en) * | 2015-11-30 | 2016-04-20 | 攀枝花学院 | Method for improving municipal sludge dewatering performance |
| CN106242014A (en) * | 2016-06-22 | 2016-12-21 | 湘潭大学 | A kind of persulfate activation method processed for waste water |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109485229A (en) * | 2017-09-08 | 2019-03-19 | 湖南大学 | A kind of method that sludge deep conditioning is dehydrated while recycling conditioning activator |
| CN108892354A (en) * | 2018-08-01 | 2018-11-27 | 成都诺德源环保科技有限公司 | A kind of method of municipal sludge dehydration |
| CN110467332A (en) * | 2019-09-17 | 2019-11-19 | 北京林业大学 | A kind of efficient sludge conditioning and dewatering |
| CN111333294A (en) * | 2020-03-17 | 2020-06-26 | 宁波财经学院 | Excess sludge pretreatment device |
| CN111333294B (en) * | 2020-03-17 | 2022-06-10 | 宁波财经学院 | Excess sludge pretreatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109292883B (en) | Graphitized biochar and method for degrading organic pollutants in water body by graphitized biochar | |
| CN106746440A (en) | The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration | |
| Nidheesh et al. | Degradation of dyes from aqueous solution by Fenton processes: a review | |
| Vajnhandl et al. | Ultrasound in textile dyeing and the decolouration/mineralization of textile dyes | |
| CN104609531B (en) | Method for preparing citrate nano zero-valent iron and method of activated persulfate thereof for treating organic wastewater | |
| CN105084511A (en) | Method for degrading organic waste water by activating persulfate through manganese-cobalt composite oxide | |
| Radi et al. | The comparison of sonochemistry, electrochemistry and sonoelectrochemistry techniques on decolorization of CI Reactive Blue 49 | |
| CN101525177A (en) | Method of using active persulphate for processing difficult-biodegradability organic waste water | |
| CN102701486A (en) | Combined treatment method for shale gas fracturing flowback wastewater | |
| CN101774674B (en) | Method for processing refractory organic wastewater by persulfate | |
| CN106242014A (en) | A kind of persulfate activation method processed for waste water | |
| Seid-Mohammadi et al. | Degradation of acid blue 113 by US/H2O2/Fe2+ and US/S2O8 2–/Fe2+ processes from aqueous solutions | |
| CN104609597A (en) | Method for removing organic pollutants in water at ultrahigh speed | |
| CN103359908A (en) | Method for improving dehydration performance of residual sludge by assisting oxidization of ferrate by utilizing ultrasonic waves | |
| CN106745651B (en) | Method for treating organic wastewater by using ferric oxychloride to catalytically activate peroxydisulfate | |
| CN110548512B (en) | Preparation method and application of magnetic iron oxide | |
| CN106746027A (en) | A kind of method that utilization iron ion catalysis azanol removes organic pollutants with hydroperoxidation | |
| CN103319066A (en) | Sludge deep dehydration method | |
| CN111362391A (en) | Novel method for removing organic pollutants through piezoelectric effect activation Fenton-like reaction | |
| Jia et al. | Insight into Chinese medicine residue biochar combined with ultrasound for persulfate activation in atrazine degradation: Acanthopanax senticosus precursors, synergistic effects and toxicity assessment | |
| CN103496781A (en) | Method of organic wastewater treatment through persulfate activation | |
| CN106583441A (en) | Method for recovery of organic chloride-polluted soil through ultrasonic intensified potassium ferrate/hydrogen peroxide | |
| CN103787488A (en) | Method of treating wastewater by catalyzing ozone to oxidize by using pyrite cinder | |
| CN110540283A (en) | Method for enhanced removal of sulfamethoxazole in water | |
| CN106673171A (en) | Method for promoting peroxymonosulfate to generate sulfate radicals for degrading organic matters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |