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 PDF

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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
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Prior art keywords
sludge
drilling
oxidation
ultrasonic
drilling sludge
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CN201710036418.1A
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Inventor
刘丽艳
闫浩
谭蔚
朱国瑞
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Tianjin University
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Tianjin University
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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
    • 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

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

The pretreatment of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration Method
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.
CN201710036418.1A 2017-01-17 2017-01-17 The preprocess method of ultrasonic synergistic potentiometric titrations oxidation drilling sludge reinforcing dehydration Pending CN106746440A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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