CN108249648A - A kind of multi-stage sewage electric flocculation processing system - Google Patents

A kind of multi-stage sewage electric flocculation processing system Download PDF

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Publication number
CN108249648A
CN108249648A CN201810259353.1A CN201810259353A CN108249648A CN 108249648 A CN108249648 A CN 108249648A CN 201810259353 A CN201810259353 A CN 201810259353A CN 108249648 A CN108249648 A CN 108249648A
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Prior art keywords
electric flocculation
sewage
processing system
module
value
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CN201810259353.1A
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CN108249648B (en
Inventor
彭乐乐
李鑫
潘月辉
陈兴杰
李立明
郑树彬
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The present invention relates to a kind of multi-stage sewage electric flocculation processing system, which includes:Water pump:It is connect with water inlet, sewage to be pumped into;Host apparatus:Including multiple sequentially connected electric flocculation modules and to show pH value, temperature, turbidity and water level information and adjust display and the monitoring module of water pump flow velocity and electric flocculation module Faradaic current, to realize multistage electrolysis;Sedimentation basin:It is connect with host apparatus, the sewage after electric flocculation is carried out multistage slow and precipitation;Filtering and adsorbent equipment:It is connect with sedimentation basin and water outlet, to being discharged after oettIed sewage progress multistage filtering absorption.Compared with prior art, the present invention have many advantages, such as multistage electrodeposit, efficient, Faradaic current is stable, pump capacity control, efficient stable, suitable for heavy metal, reduction flow velocity raising clean-up effect, self clean, abundant water purification.

Description

A kind of multi-stage sewage electric flocculation processing system
Technical field
The present invention relates to sewage treatment field, more particularly, to a kind of multi-stage sewage electric flocculation processing system.
Background technology
With industrial progress, a large amount of sewage discharge is produced.Existing sewage-treatment plant is complicated, dimension Repair costly, and efficiency is low, high energy consumption.Often processed sewage still can not reach quality index, to water after discharge Source and environment cause seriously to pollute.Therefore, how efficiency improved by effective mode, the means that how to develop skill make dirt It is a urgent problem to be solved that water process, which reaches quality requirement,.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of multi-stage sewage electricity is wadded a quilt with cotton Solidifying processing system.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of multi-stage sewage electric flocculation processing system, the device include:
Water pump:It is connect with water inlet, sewage to be pumped into;
Host apparatus:Including multiple sequentially connected electric flocculation modules and to show pH value, temperature, turbidity and water level Information and display and the monitoring module for adjusting water pump flow velocity and electric flocculation module Faradaic current, to realize multistage electrolysis;
Sedimentation basin:It is connect with host apparatus, the sewage after electric flocculation is carried out multistage slow and precipitation;
Filtering and adsorbent equipment:It is connect with sedimentation basin and water outlet, to carry out multistage filtering suction to oettIed sewage Attached discharge.
The electric flocculation module is the cylinder-like structure of one end open, including cathode tube and is arranged in cathode tube Anode stub, described cathode tube one end are equipped with electric flocculation water outlet, bottom by disassembly and assembly sealing joint, top side Opposite side is equipped with electric flocculation water inlet.
The output voltage V of each electric flocculation module is controlled by the following formula:
V=V1+a·ΔZPH+b·∫ΔZPH+c·T
Wherein, V1On the basis of voltage, Δ ZPHFor PH deviations, and Δ ZPH=ZPH- 7, ZPHFor pH value, T is electric flocculation module Temperature, a are proportionality coefficient, and b is integral coefficient, and c is temperature coefficient.
The value of the proportionality coefficient a is:
The value of integral coefficient b is:
The value of temperature coefficient c is 0.1, the ranging from 20-28V of the output voltage of electric flocculation module, reference voltage V1It takes It is worth for 24V.
The output flow Q of the water pump is controlled by the following formula:
Q=Q1+m·T+nP
Wherein, Q1On the basis of flow, T be electric flocculation module temperature, P be electric flocculation module in turbidity of sewage, m be temperature system Number, n is turbidity coefficient.
The value of the turbidity coefficient n is:
The standard flow Q1Value be 1m3/ s, the value of temperature coefficient is 0.1.
Polylith current deflecting plate is set in entrance area inside the sedimentation basin, makes runner S-shaped, exit region is set Put zeolite.
The filtering and adsorbent equipment include multiple sequentially connected filtering adsorption tubes, and each adsorption tube lower part of filtering is opened If entrance, top open up outlet, bottom is equipped with blowdown valve.
The filtering adsorption tube is internally provided with filter screen, activated carbon or quartz sand.
The anode stub is cylindric aluminium bar or stainless steel bar.
Compared with prior art, the present invention has the following advantages:
First, multistage electrodeposit, efficient:The present invention is provided with water pump, host apparatus, sedimentation basin and filtering and absorption dress It puts.In sewage disposal process, sewage by water pump, host apparatus, sedimentation basin, filtering and adsorbent equipment carry out multistage electrolysis, Precipitation, filtering and absorption, treatment effeciency is high, and effect is good.
2nd, Faradaic current is stablized:The present invention is using the electric flocculation module control method innovated, according to the pH value of sewage, temperature The information changes such as degree control electric flocculation voltage output, ensures that Faradaic current is constant.
3rd, pump capacity controls:The present invention is using the water pump control method innovated, according to letters such as the temperature of sewage, turbidity Breath variation control pump capacity output.
4th, efficient stable:The display and monitoring module of the present invention can be to information such as sewage PH value, temperature, turbidity and water levels Pump operation is monitored and controlled, and voltage is controlled to make the Faradaic current in electrolytic module constant, by monitoring sewage PH value, temperature Variation control electric flocculation output voltage is constant come electric current when ensureing electrolytic sewage, keeps the electrolytic speed of efficient stable.Pass through Monitor sewage temperature, turbidity information variation control pump capacity output, ensure it is best to water polluting matter sedimentation effect in the case of water Pump output flow is maximum.
5th, suitable for heavy metal, nuclear waste water and chemical engineering sewage object:The electric flocculation module of the present invention for anode and negative electrode it Between dismountable cylindrical structure, the anode is cylindrical aluminum or stainless steel, and when electrolysis itself will not generate pollution;It is cloudy The extremely inside outer wall of electric flocculation module, electric flocculation module bottom end are equipped with water inlet, and top is equipped with water outlet, and sewage flows through electric wadding From the bottom to top, liquid can come into full contact with solidifying module with anodic-cathodic, and electrolysis area reaches maximum, and electric flocculation module is more than density Water (1.0g/cm3) water polluting matter have precipitation, can be with multiple electric flocculation block coupled in series so as to reach multistage electrolysis effectiveness.
6th, reduce flow velocity and improve clean-up effect:The sedimentation basin side top of the present invention is equipped with water inlet, and opposite side bottom end is set There is water outlet, current deflecting plate is equipped between water inlet and water outlet, zeolite is placed in water outlet side, and current deflecting plate can be effective Change flow velocity of the sewage from water inlet to water outlet, play slowing effect, increase the time of contact of liquid and zeolite, improve purification Sewage effect, current deflecting plate can according to specific actual conditions installation number how much.
7th, self cleaning, abundant water purification:The filtering of the present invention and adsorbent equipment include filter device and adsorbent equipment, mistake Filter and adsorbent equipment bottom end are equipped with water inlet, and top is equipped with water outlet, and inside includes filter screen, activated carbon and quartz sand, bottom Equipped with blowdown valve, liquid from water inlet to water outlet to it is lower and on, once by filter screen, activated carbon and quartz sand, liquid and It can be come into full contact between activated carbon, quartz sand, purifying water effect reaches maximum, passes through filtering and the blowdown valve of adsorbent equipment bottom Ejecting/collecting is in internal dirt, and the liquid of the inside flows out from top to down from blowdown valve, so as to reach self cleaning function.
Description of the drawings
Fig. 1 is the structure diagram of sewage electric flocculation processing system of the present invention.
Fig. 2 is the structure diagram of electric flocculation module of the present invention.
Description of symbols in figure:
1st, water pump, 2, host apparatus, 3, sedimentation basin, 4, filtering and adsorbent equipment, 5, water inlet, 6, water outlet, 7, display And control module, 8, electric flocculation module, 9, current deflecting plate, 10, zeolite, 11, filter screen, 12, activated carbon, 13, blowdown valve, 14th, quartz sand, 15, anode stub, 16, cathode tube, 17, disassembly and assembly interface, 18, electric flocculation module water inlet, 19, electric flocculation Module water outlet.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in Figure 1, the present invention provides a kind of sewage electric flocculation processing system, including water pump 1, host apparatus 2, sedimentation basin 3 and filtering and adsorbent equipment 4, water pump 1 connect water inlet 5, the other end and the bottom end for connecting host apparatus 2, the top of host apparatus 2 The top of end connection sedimentation basin 3, the bottom end connection filtering of sedimentation basin 3 and the bottom end of adsorbent equipment 4, filtering and adsorbent equipment 4 push up End connection water outlet 5, host apparatus 2 are made of display and control module 7 and electric flocculation module 8, and sedimentation basin 3 is rectangular parallelepiped structure And equipped with current deflecting plate 9;Filtering and adsorbent equipment 4 are mounted with that blowdown valve 13, filter screen 11 and inside placed activated carbon 12 and quartz sand 14.
The process of sewage disposal of the present invention is as follows:
Sewage is entered the electric flocculation module 8 of host apparatus 2,8 bottom end of electric flocculation module by water pump 1 by water inlet first Equipped with water inlet, top is equipped with water outlet, and multiple electric flocculation modules 8 are connected, and sewage flows through electric flocculation module, sewage from lower to upper It is electrolysed by multistage;After electrolysis except dechromise, the dye molecule of cyanogen, heavy metal ion, oil, suspended matter, colloidal state or dissolved state.
The information such as pH value, temperature, turbidity and water level when the display of host module 2 and control module 7 monitor electrolytic sewage, and The output of electric flocculation module voltage is controlled according to information changes such as sewage PH value, temperature, control method is as follows:
Output controls:V=V1+a·ΔZPH+b·∫ΔZPH+ cT, output voltage are limited to 20-28V up and down.
Wherein, V1On the basis of voltage, V1=24V;ΔZPHFor PH deviations, Δ ZPH=ZPH-7;T is electric flocculation module temperature Degree;A is proportionality coefficient;
B is integral coefficient;C is temperature coefficient;C=0.1;
More than coefficient can be according to specific implementation situation value.
The control method controls the voltage output of electric flocculation module by information such as the pH value of sewage, temperature, ensures electricity Solution the constant of electric current makes entire electrolytic process efficient stable.Display and monitoring module 7 are according to information controls such as temperature, the turbidity of sewage The flow output of water pump processed, control method are as follows:
Output controls:Q=Q1+ mT+nP, the flow output upper limit of water pump is 2.5m3/s。
Wherein, Q1On the basis of flow, Q1=1.5m3/s;T is electric flocculation module temperature;P is that sewage is turbid in electric flocculation module Degree;M is temperature coefficient, m=0.1;N is turbidity coefficient;
More than coefficient can be according to specific implementation situation value.
The control method controls pump capacity to export by information such as the temperature of sewage, turbidity, makes sewage in electric flocculation Ensure that pump capacity output is maximum in the case of reaching best in processing procedure to the sedimentation effect of the water polluting matters such as heavy metal.Electrolysis Liquid afterwards is delivered to sedimentation basin 3, which is equipped with water inlet, and opposite side bottom end is equipped with water outlet, water inlet Current deflecting plate 9 is equipped between water outlet, zeolite 10 is placed in water outlet side.Current deflecting plate 9 can effectively change sewage from Water inlet plays slowing effect to the flow velocity of water outlet.Increase the time of contact of liquid and zeolite 10, improve purification sewage effect Fruit.3 water outlet of sedimentation basin connection filtering and the water inlet of adsorbent equipment 4, filtering and 4 bottom end of adsorbent equipment are equipped with water inlet, top End be equipped with water outlet, liquid by first passing through filter screen 11 and activated carbon 12 from lower to upper when filtering and adsorbent equipment, using Then quartz sand 14 is flowed out from water outlet.Sewage by electric flocculation module 8, sedimentation basin 3, filtering and the multistage electrolysis of adsorbent equipment 4, Precipitation, filtering and adsorption cleaning complete sewage disposal.
As shown in Fig. 2, when sewage is from water pump 1 to host apparatus 2, actually when enter the electric flocculation of host apparatus 2 Module 8, electric flocculation module are equipped with water inlet 18 and water outlet 19, and water inlet 18 exists in the bottom end of electric flocculation module 8, water outlet 19 The top of electric flocculation module 8.Liquid from lower to upper, can all fill water, to heavy metal, nuclear waste water inside entire electric flocculation module 8 And chemical engineering sewage object Midst density is more than water (1.0g/cm3) pollutant can be deposited in the bottom of electric flocculation module 8, electricity wadding automatically The anode and cathode of solidifying module 8 and the liquid of the inside come into full contact with, and liquid can be adequately electrolysed.The anode and the moon of electric flocculation module 8 Pole is designed as detachable and package assembly;Anode stub 15 and cathode tube 16 are connected by disassembly and assembly interface 17.Anode uses Aluminium or stainless steel itself will not generate pollution in electrolytic process, and the design of this disassembly and assembly structure is easy to disassemble Electric flocculation module precipitates and is electrolysed the impurity accumulated and pollutant and replacement anode or cathode to remove the inside.
It is last it is necessarily pointed out that:It these are only the preferable specific embodiment of the present invention, but the guarantor of the present invention Shield range is not limited thereto, and any one skilled in the art in the technical scope disclosed by the present invention, can be light The change or replacement being readily conceivable that, should be covered by the protection scope of the present invention.

Claims (10)

1. a kind of multi-stage sewage electric flocculation processing system, which is characterized in that the system includes:
Water pump (1):It is connect with water inlet (5), sewage to be pumped into;
Host apparatus (2):Including multiple sequentially connected electric flocculation modules (8) and to show pH value, temperature, turbidity and water Position information simultaneously adjusts water pump (1) flow velocity and the display of electric flocculation module (8) Faradaic current and monitoring module (7), more to realize Grade electrolysis;
Sedimentation basin (3):It is connect with host apparatus (2), the sewage after electric flocculation is carried out multistage slow and precipitation;
Filtering and adsorbent equipment (4):It is connect with sedimentation basin (3) and water outlet (6), to carry out multistage mistake to oettIed sewage It is discharged after filter absorption.
A kind of 2. multi-stage sewage electric flocculation processing system according to claim 1, which is characterized in that the electric flocculation mould Block (8) is the cylinder-like structure of one end open, including cathode tube (16) and the anode stub (15) being arranged in cathode tube (16), Described cathode tube (16) one end is sealed by disassembly and assembly interface (17), and top side is equipped with electric flocculation water outlet, bottom Portion's opposite side is equipped with electric flocculation water inlet.
A kind of 3. multi-stage sewage electric flocculation processing system according to claim 1, which is characterized in that each electric flocculation module (8) output voltage V is controlled by the following formula:
V=V1+a·ΔZPH+b·∫ΔZPH+c·T
Wherein, V1On the basis of voltage, Δ ZPHFor PH deviations, and Δ ZPH=ZPH- 7, ZPHFor pH value, T is electric flocculation module temperature Degree, a is proportionality coefficient, and b is integral coefficient, and c is temperature coefficient.
A kind of 4. multi-stage sewage electric flocculation processing system according to claim 3, which is characterized in that the proportionality coefficient The value of a is:
The value of integral coefficient b is:
The value of temperature coefficient c is 0.1, the ranging from 20-28V of the output voltage of electric flocculation module (8), reference voltage V1Value For 24V.
A kind of 5. multi-stage sewage electric flocculation processing system according to claim 1, which is characterized in that the water pump (1) Output flow Q controlled by the following formula:
Q=Q1+m·T+nP
Wherein, Q1On the basis of flow, T is electric flocculation module temperature, and P is turbidity of sewage in electric flocculation module, and m is temperature coefficient, n For turbidity coefficient.
A kind of 6. multi-stage sewage electric flocculation processing system according to claim 5, which is characterized in that the turbidity coefficient The value of n is:
The standard flow Q1Value be 1m3/ s, the value of temperature coefficient is 0.1.
A kind of 7. multi-stage sewage electric flocculation processing system according to claim 1, which is characterized in that the sedimentation basin (3) it is internal that in entrance area, polylith current deflecting plate (9) is set, make runner S-shaped, exit region setting zeolite (10).
A kind of 8. multi-stage sewage electric flocculation processing system according to claim 1, which is characterized in that the filtering and suction Adsorption device (4) includes multiple sequentially connected filtering adsorption tubes, and each filtering adsorption tube lower part opens up entrance, top opens up out Mouthful, bottom is equipped with blowdown valve (13).
A kind of 9. multi-stage sewage electric flocculation processing system according to claim 8, which is characterized in that the filtering absorption Pipe is internally provided with filter screen (11), activated carbon (12) or quartz sand (14).
A kind of 10. multi-stage sewage electric flocculation processing system according to claim 2, which is characterized in that the anode stub (15) it is cylindric aluminium bar or stainless steel bar.
CN201810259353.1A 2018-03-27 2018-03-27 Multistage sewage electric flocculation treatment system Active CN108249648B (en)

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CN109671512A (en) * 2019-01-22 2019-04-23 东华理工大学 A kind of electrochemistry and photo-thermal evaporation process nuclear waste water device based on solar energy
CN112266111A (en) * 2020-10-10 2021-01-26 深圳市顺益丰实业有限公司 Electroplating wastewater recycling process

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Publication number Priority date Publication date Assignee Title
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CN109671512A (en) * 2019-01-22 2019-04-23 东华理工大学 A kind of electrochemistry and photo-thermal evaporation process nuclear waste water device based on solar energy
CN112266111A (en) * 2020-10-10 2021-01-26 深圳市顺益丰实业有限公司 Electroplating wastewater recycling process

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