CN107601796A - A kind of sludge treating system - Google Patents

A kind of sludge treating system Download PDF

Info

Publication number
CN107601796A
CN107601796A CN201711037458.4A CN201711037458A CN107601796A CN 107601796 A CN107601796 A CN 107601796A CN 201711037458 A CN201711037458 A CN 201711037458A CN 107601796 A CN107601796 A CN 107601796A
Authority
CN
China
Prior art keywords
sludge
pump
filter press
electric flocculation
treated
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
Application number
CN201711037458.4A
Other languages
Chinese (zh)
Inventor
李建光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201711037458.4A priority Critical patent/CN107601796A/en
Publication of CN107601796A publication Critical patent/CN107601796A/en
Pending legal-status Critical Current

Links

Landscapes

  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention provides a kind of pollutant disposal system, is related to pollutant process technical field.Wherein, the system includes:Sludge-tank, first pumping, electrolysis regulation bucket, second pumping, electric flocculation device and filter press, sludge-tank is connected by the first pumping with regulation bucket, for storing pending sludge, and pending sludge is input in electrolysis regulation bucket by the first pumping, electrolysis regulation bucket is connected by the second pumping with electric flocculation device, for adding chlorion electrolyte into pending sludge, and the pending sludge that will be electrolysed in regulation bucket by the second pumping is pumped into electric flocculation device, electric flocculation device, for being electrolysed using built-in iron or aluminium anodic-cathodic to pending sludge under conditions of current density is 50~400A, and the sludge after electrolysis is input to filter press, filter press, for being filtered to the sludge after electrolysis, obtain solid sludges and filtrate.The problem of being polluted system solves the problem mud discharging to environment.

Description

Sludge treatment system
Technical Field
The invention belongs to the technical field of pollutant treatment, and particularly relates to a sludge treatment method and system.
Background
Along with the development of socioeconomic and urbanization in China, the generation and quantity of municipal sewage and sludge are increasing. The yield of municipal sewage and sludge in China is estimated to reach 6000-9000 ten thousand tons by 2020, and the annual growth rate is more than 10%.
At present, most urban sewage and sludge are not treated and are directly discharged into the environment, wherein a large amount of pollutants contained in the sludge comprise pathogenic microorganisms, parasitic ova, nitrogen and phosphorus, organic pollutants, heavy metals and salt, and the environment is polluted.
Disclosure of Invention
The invention provides a sludge system, and aims to solve the problem that the existing sludge is directly discharged to cause pollution to the environment.
The invention provides a sludge system, which comprises: the device comprises a sludge tank, a first pump, an electrolytic adjusting barrel, a second pump, an electric flocculation device and a filter press;
the sludge tank is connected with the adjusting barrel through the first pump and is used for storing sludge to be treated and inputting the sludge to be treated into the electrolytic adjusting barrel through the first pump;
the electrolytic adjusting barrel is connected with the electric flocculation device through the second pump and is used for adding chloride ion electrolyte into the sludge to be treated and pumping the sludge to be treated in the electrolytic adjusting barrel into the electric flocculation device through the second pump;
the electric flocculation device is used for electrolyzing sludge to be treated by utilizing a built-in iron or aluminum cathode-anode under the condition that the current density is 50-400A, and inputting the electrolyzed sludge into the filter press;
the filter press is used for filtering the electrolyzed sludge to obtain solid sludge and filtrate.
According to the sludge treatment system provided by the invention, on one hand, flocs and colloids in sludge to be treated and cell walls of microorganisms can be broken by utilizing the oxidation effect generated by a cathode and an anode through electrolyzing the sludge to be treated in the electric flocculation device under the condition that the current density is 50-400A, and on the other hand, hydroxide generated by electrolysis can enable the sludge to have a good flocculation effect, so that the sludge to be treated forms particles with larger particle size, and is convenient for filter pressing dehydration, the effects of membrane breaking, sterilization and flocculation filter pressing dehydration are achieved, and the problem of environmental pollution caused by sludge discharge is well solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a schematic diagram of a pollutant treating system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pollutant treating system according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a pollutant treating system according to a first embodiment of the present invention, and the pollutant treating system shown in fig. 1 mainly includes: a sludge tank 101, a first pump 102, an electrolytic conditioning barrel 103, a second pump 104, an electric flocculation device 105 and a filter press 106.
The sludge tank 101 is connected with the electrolytic conditioning barrel 103 through a first pump 102, and is used for storing sludge to be treated, and inputting the sludge to be treated into the electrolytic conditioning barrel 103 through the first pump 102.
The water content of the sludge to be treated is 90-99%. The sludge tank can be a storage cylinder body or a tank body with various specifications. Preferably, the sludge pond is provided with a groove body of a stirring or gas-stepping device.
The electrolytic conditioning 103 barrel is connected with the electric flocculation device 105 through a second pump 104, and is used for adding chloride ion electrolyte into the sludge to be treated, and pumping the electrolyzed sludge into the electric flocculation device 105 through the second pump 104.
Specifically, the electrolyte is a salt solution or an acid solution containing chloride ions, such as sodium chloride or potassium chloride.
And the electric flocculation device 105 is used for electrolyzing the pumped sludge by utilizing a built-in iron or aluminum cathode-anode pair under the condition that the current density is 50-400A, and inputting the electrolyzed sludge into the filter press 106.
And the filter press 106 is used for filtering the electrolyzed sludge to obtain solid sludge and filtrate.
According to the sludge treatment system provided by the invention, on one hand, flocs and colloids in sludge to be treated and cell walls of microorganisms can be broken by utilizing the oxidation effect generated by the cathode and the anode through electrolyzing the sludge to be treated in the electric flocculation device, and on the other hand, hydroxide generated by electrolysis can enable the sludge to have a good flocculation effect, so that the sludge to be treated forms particles with larger particle size, the filter-pressing dehydration is convenient, the effects of membrane breaking, sterilization and flocculation filter-pressing dehydration are achieved, and the problem of environmental pollution caused by sludge discharge is well solved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a pollutant treating system according to a first embodiment of the present invention, and the pollutant treating system shown in fig. 2 mainly includes: the device comprises a sludge pool 201, a first pumping 202, an electrolytic adjusting barrel 203, a second pumping 204, an electric flocculation device 205, a third pumping 206, a fourth pumping 207, a filter pressing adjusting cylinder 208, a filter press 209 and a transfer cylinder 2010, wherein the electric flocculation device 205 comprises: the device comprises a tank body 215, a power supply 225, an electrode 235, a sludge inlet 245, a sludge scraping mechanism 255, an attached cylinder 265, an aeration mechanism 275, a circulation mechanism 285 and a parameter monitor 295. Wherein,
the sludge tank 201 is connected with the electrolytic conditioning barrel 203 through the first pump 202, and is used for storing sludge to be treated, and the sludge to be treated is input into the electrolytic conditioning barrel 203 through the first pump 202.
The water content of the sludge to be treated is 90-99%. The sludge tank can be a storage cylinder body or a tank body with various specifications. Preferably, the sludge pond is provided with a groove body of a stirring or gas-stepping device.
The electrolytic conditioning 203 barrel is connected with the electric flocculation device 205 through a second pump 204 and is used for adding chloride ion electrolyte into the sludge to be treated, and the electrolyzed sludge is pumped into the electric flocculation device 205 through the second pump 204.
Specifically, the electrolyte is a salt solution or an acid solution containing chloride ions, such as sodium chloride or potassium chloride.
And the electric flocculation device 205 is used for electrolyzing the pumped sludge by utilizing a built-in iron or aluminum cathode-anode pair under the condition that the current density is 50-400A, and inputting the electrolyzed sludge into the filter press 206.
The filter press 209 is configured to filter the electrolyzed sludge to obtain solid sludge and filtrate.
Specifically, the filter press 209 is a membrane filter press, a high-pressure spring filter press, a high-pressure blocking filter press, or a plate and frame filter press.
Further, the electric flocculation apparatus 205 includes: the device comprises a tank body 215, a power supply 225, a cathode and anode 235 and a mud inlet 245, wherein the power supply 225 and the cathode and anode 235 are arranged inside the tank body 215.
The tank 215 is a container for performing an electrolytic reaction on the sludge.
A sludge inlet 245 is provided at the bottom of the tank 215, and is an inlet for the sludge to be treated.
Preferably, the position of the partial sludge inlet 245 is set at the lower portion of the tank body, so that when sludge to be treated can enter the tank body 215 from the bottom position, the reaction of the sludge being electrolyzed is not affected, thereby ensuring the continuous progress of the reaction.
The power source 225 is connected to the negative and positive electrodes 235 for providing current to the negative and positive electrodes 235.
In particular, the cathode and anode 235 is used for electrolyzing the sludge to be treated. Wherein, the cathode 235 and the anode are made of metal materials of iron, aluminum or iron-aluminum alloy. In the electrolysis process, the current density may be set to 500 to 400A. The power supply 225 may be a dc power supply or a pulsed power supply. The sludge generates oxides under the action of electrochemical reaction, and the hydroxide has charges, so that small-molecule precipitates can be gathered together, and the precipitation is facilitated.
Further, the electric flocculation apparatus 205 further comprises: a mud scraping mechanism 255 and an attached cylinder 265.
The mud scraping mechanism 255 is disposed on the inner wall of the tank body 215, and is configured to scrape the generated air-floating sludge into the attachment cylinder 265 after the air-floating sludge is generated in the electrolytic reaction process.
The attached cylinder 265 is disposed at one side of the tank 215 and is a container for placing the air-floated sludge.
In practical application, a large amount of gas air-float sludge can be generated in the process of electrolytic reaction, and the sludge can overflow when the air-float sludge is enough, so that the reaction is influenced to continue, the air-float sludge is scraped into the attached cylinder by the sludge scraping mechanism, and the reaction can be ensured to continue. Furthermore, a pipeline is arranged on the inner wall of the attached cylinder, so that the air floatation sludge can be conveyed to the outside of the system for further treatment.
Further, the electric flocculation apparatus 205 further comprises: an aeration mechanism 275.
And an aeration means 275 for introducing oxygen into the sludge subjected to the electrolytic reaction.
After oxygen is introduced, the electrolytic reaction can be accelerated, and in addition, the electrolyzed substances can be further oxidized, so that the electrolyzed substances have better oxidability and flocculation property.
Further, the electric flocculation apparatus 205 further comprises: a circulation mechanism 285.
And a circulating mechanism 285 for uniformly stirring the sludge subjected to the electrolytic reaction.
The sludge can be continuously stirred in the reaction process by adopting the circulating mechanism 285, so that the reaction is complete.
Further, the electric flocculation apparatus 205 further comprises: a parameter monitor 295.
And a parameter monitor 295 for displaying and controlling the output current and output voltage of the electrode 235, and having a high-frequency power supply or a positive-negative pulse power supply with a polarity conducting function.
Further, the contamination treatment system further includes: a third pump 206, a fourth pump 207 and a filter-press adjustment cylinder 208.
The filter-press adjusting cylinder 208 is connected with the electric flocculation device 205 through a third pump 206 and connected with the filter press 209 through a fourth pump 207, respectively, for adding PAM to adjust the particle size of the electrolyzed sludge.
Specifically, PAM is added to the filter-press adjustment cylinder 208 to further adjust the particle size of the electrolyzed sludge to have better settleability and dehydration properties, and organic and inorganic water can be easily removed after the treated sludge is pumped into the filter press 209 to separate water to the maximum extent. Wherein, PAM is polyacrylamide and is used as non-ionic polymeric flocculant.
Specifically, in the embodiment of the present invention, the first pump, the second pump, the third pump, and the fourth pump are any one of a screw pump, a choke pump, a centrifugal pump, a diaphragm pump, and a rotor pump.
Further, the contamination treatment system further includes: the relay cylinder 2010.
The transfer cylinder 2010 is connected with the filter press 209 and is used for containing the liquid after filter pressing.
According to the sludge treatment system provided by the invention, on one hand, flocs and colloids in sludge to be treated and cell walls of microorganisms can be broken by utilizing the oxidation effect generated by the cathode and the anode through electrolyzing the sludge to be treated in the electric flocculation device, and on the other hand, hydroxide generated by electrolysis can enable the sludge to have a good flocculation effect, so that the sludge to be treated forms particles with larger particle size, the filter-pressing dehydration is convenient, the effects of membrane breaking, sterilization and flocculation filter-pressing dehydration are achieved, and the problem of environmental pollution caused by sludge discharge is well solved.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is provided for the sludge treatment system of the present invention, and for those skilled in the art, the idea of the embodiment of the present invention may be changed in the specific implementation and application scope, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims (10)

1. A sludge treatment system, the system comprising: the device comprises a sludge tank, a first pump, an electrolytic adjusting barrel, a second pump, an electric flocculation device and a filter press;
the sludge tank is connected with the electrolytic adjusting barrel through the first pump and is used for storing sludge to be treated and inputting the sludge to be treated into the electrolytic adjusting barrel through the first pump;
the electrolytic adjusting barrel is connected with the electric flocculation device through the second pump and is used for adding chloride ion electrolyte into the sludge to be treated and pumping the sludge added with the electrolyte into the electric flocculation device through the second pump;
the electric flocculation device is used for electrolyzing the pumped sludge by utilizing a built-in iron or aluminum cathode-anode pair under the condition that the current density is 50-400A, and inputting the electrolyzed sludge into the filter press;
the filter press is used for filtering the electrolyzed sludge to obtain solid sludge and filtrate.
2. The system of claim 1, wherein the electroflocculation apparatus comprises a tank, a power source, a negative and positive electrode, and a sludge inlet, the power source and electrodes being disposed inside the tank;
the tank body is a container for carrying out electrolytic reaction on the sludge;
the sludge inlet is arranged at the bottom of the tank body and is used for introducing the sludge to be treated;
the power supply is connected with the cathode and the anode and is used for providing current for the electrodes;
and the cathode and the anode are used for electrolyzing the sludge to be treated.
3. The system of claim 2, wherein the electroflocculation apparatus further comprises: a mud scraping mechanism and an attached cylinder;
the sludge scraping mechanism is arranged on the inner wall of the tank body and is used for scraping the generated air-floated sludge into the attached cylinder after the air-floated sludge is generated in the electrolytic reaction process;
the attached cylinder is arranged on one side of the tank body and is a container for placing the air floatation sludge.
4. The system of claim 3, wherein the electroflocculation apparatus further comprises: an aeration mechanism;
the aeration mechanism is used for introducing oxygen into the sludge subjected to the electrolytic reaction.
5. The system of claim 3, wherein the electroflocculation apparatus further comprises: a circulating mechanism;
and the circulating mechanism is used for uniformly stirring the sludge subjected to the electrolytic reaction.
6. The system of claim 3, wherein the electroflocculation apparatus further comprises: and the high-frequency power supply or the positive and negative pulse power supply with the electrode conducting function is used for displaying and controlling the output current and the output voltage of the electrode.
7. The system of claim 1, further comprising: a third pump, a fourth pump and a filter pressing adjusting cylinder;
and the filter pressing adjusting cylinder is respectively connected with the electric flocculation device through the third pump and connected with the filter press through the fourth pump, and is used for adding PAM (polyacrylamide) to adjust the particle size of the electrolyzed sludge.
8. The system of claim 1, wherein the system comprises: a transfer cylinder;
the transfer cylinder is connected with the filter press and used for containing liquid after filter pressing.
9. The system of claim 7, wherein the first, second, third, and fourth pumps are any of a progressive cavity pump, a blocking pump, a centrifugal pump, a diaphragm pump, or a rotory pump.
10. The system according to any one of claims 1 to 7, wherein the filter press is a membrane filter press, a high pressure spring filter press, a high pressure block filter press, a plate and frame filter press.
CN201711037458.4A 2017-10-30 2017-10-30 A kind of sludge treating system Pending CN107601796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711037458.4A CN107601796A (en) 2017-10-30 2017-10-30 A kind of sludge treating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711037458.4A CN107601796A (en) 2017-10-30 2017-10-30 A kind of sludge treating system

Publications (1)

Publication Number Publication Date
CN107601796A true CN107601796A (en) 2018-01-19

Family

ID=61084429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711037458.4A Pending CN107601796A (en) 2017-10-30 2017-10-30 A kind of sludge treating system

Country Status (1)

Country Link
CN (1) CN107601796A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63162100A (en) * 1986-12-24 1988-07-05 Ishigaki Kiko Kk Electrolytic treatment of sludge
CN102603132A (en) * 2012-02-29 2012-07-25 波鹰(厦门)科技有限公司 Sludge treatment device based on electrolysis and pressure filtration technologies and method thereof
CN105314810A (en) * 2014-08-04 2016-02-10 昆山美淼环保科技有限公司 Catalytic dehydration method for sludge
CN107055984A (en) * 2016-12-01 2017-08-18 浙江工业大学 A kind of method that high-voltage pulse electrolytic tension filter method deep dehydration handles sludge
CN206553379U (en) * 2017-01-16 2017-10-13 深圳市泓达环境科技有限公司 sludge dewatering abatement system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63162100A (en) * 1986-12-24 1988-07-05 Ishigaki Kiko Kk Electrolytic treatment of sludge
CN102603132A (en) * 2012-02-29 2012-07-25 波鹰(厦门)科技有限公司 Sludge treatment device based on electrolysis and pressure filtration technologies and method thereof
CN105314810A (en) * 2014-08-04 2016-02-10 昆山美淼环保科技有限公司 Catalytic dehydration method for sludge
CN107055984A (en) * 2016-12-01 2017-08-18 浙江工业大学 A kind of method that high-voltage pulse electrolytic tension filter method deep dehydration handles sludge
CN206553379U (en) * 2017-01-16 2017-10-13 深圳市泓达环境科技有限公司 sludge dewatering abatement system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈金銮;万晶;施汉昌: "电解浮选用于活性污泥固液分离的研究", 环境科学, vol. 27, no. 11, pages 2334 - 2337 *

Similar Documents

Publication Publication Date Title
CN201722249U (en) Industrial sewage electrochemical treatment plant
CN109485185B (en) Pulse electrochemical treatment method and device for waste liquid of oil field operation
CN101973607A (en) Efficient electrocoagulation reactor capable of adjusting electrode distance
CN114212862A (en) Electric flocculation oxidation integrated wastewater treatment device and treatment method
CN109354134B (en) Method for removing chroma of anodic oxidation dyeing wastewater through electric flocculation
Mahajan et al. Treatment of hospital operation theatre effluent by electrocoagulation
CN108840406A (en) Electrolysis reactor and trade effluent electrolysis pretreatment system
Chaturvedi Mercury removal using Fe–Fe electrodes by electrocoagulation
CN111689550A (en) Continuous sewage discharge and reuse industrial circulating water integral treatment system and process
Nwabanne et al. Removal of copper, nickel, and chromium from simulated wastewater using electrocoagulation technique
CN107253782A (en) A kind of ferrikinetics electrochemistry Fenton method for treating water and device
CN107827293B (en) A kind for the treatment of process for the highly salt containing organic waste water that marine products processing process generates
CN207512055U (en) A kind of sludge treating system
CN111943411A (en) Advanced oxidation treatment device for composite sewage
CN218579721U (en) Electrochemical water softening device
CN217202372U (en) Coking wastewater advanced treatment equipment
CN107601796A (en) A kind of sludge treating system
KR20200134604A (en) Water treatment apparatus using electric coagulation and floating method
CN212127829U (en) Reverse osmosis concentrate electrolytic recovery device
Shanthi et al. Domestic sewage treatment using batch stirred tank electrochemical reactor
CN210855619U (en) Contain salt organic waste water electrocatalytic oxidation coupling preprocessing device
CN109384358B (en) Integrated denitrification filter tank with electric flocculation device
CN111825251B (en) Drilling wastewater treatment device and method
JP2003062592A (en) Method for treating organic waste water containing chloride ion
RU2031855C1 (en) Method and device for purification of industrial drainage water

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