CN101486518A - Fenton-like-fluidized bed sewage processor and sewerage treating method therefor - Google Patents

Fenton-like-fluidized bed sewage processor and sewerage treating method therefor Download PDF

Info

Publication number
CN101486518A
CN101486518A CNA2009100714636A CN200910071463A CN101486518A CN 101486518 A CN101486518 A CN 101486518A CN A2009100714636 A CNA2009100714636 A CN A2009100714636A CN 200910071463 A CN200910071463 A CN 200910071463A CN 101486518 A CN101486518 A CN 101486518A
Authority
CN
China
Prior art keywords
sewage
fenton
fluidized bed
reactor
fenton reactor
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.)
Granted
Application number
CNA2009100714636A
Other languages
Chinese (zh)
Other versions
CN101486518B (en
Inventor
沈吉敏
陈忠林
徐贞贞
李学艳
崔学刚
任南琪
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.)
Harbin Youfang Water Purification Technology Co ltd
Original Assignee
Harbin Institute of Technology
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 Harbin Institute of Technology filed Critical Harbin Institute of Technology
Priority to CN2009100714636A priority Critical patent/CN101486518B/en
Publication of CN101486518A publication Critical patent/CN101486518A/en
Application granted granted Critical
Publication of CN101486518B publication Critical patent/CN101486518B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention provides a Fenton-like-fluidized bed sewage treatment device and a sewage treatment method thereof, and relates to a water treatment device and a sewage treatment method thereof. The sewage treatment device and the sewage treatment method thereof solve the problems that the reaction conditions are harsh in the reaction for the degradation of organic sewage and a large amount of ferrous sludge is generated during the reaction process. The device comprises a first Fenton reactor (1), a second Fenton reactor (2), a lifting pump (7), a first circulating pump (3) and a second circulating pump (9). The method comprises the following steps: 1. the sewage is treated in the first Fenton reactor (1); 2. the effluent index is controlled; 3. the sewage is treated in the second Fenton reactor (2) and the pH value is adjusted; and 4. the effluent index and the concentration of ferrous ion in the solution are controlled. The water treatment device and the sewage treatment method thereof adopt the method of combing Fenton-like process and sediment crystallization process, the process is improved, and the activity of biological treatment is enhanced. The process is applicable for the treatment of special organic wastewater which is high in concentration and hard to be biodegraded, can not be treated by conventional process or can not obtain good treatment effect when being treated by the conventional process.

Description

Class Fenton-fluidized bed sewage processor and the method for disposing of sewage thereof
Technical field
The method that the present invention relates to a kind of water treatment device and dispose of sewage.
Background technology
The organic waste water of high density difficult for biological degradation has become the greatest problem of contaminate environment.At present at waste water advanced processes technical elements, the class Fenton process is efficient because of having, the advantage of applied range, low process cost, be applied in this field widely, but the class Fenton process exists severe reaction conditions (must carry out) under acidic conditions in the reaction of degradation of organic substances waste water, can produce the shortcoming of a large amount of iron containing sludges in the reaction process.
Summary of the invention
The objective of the invention is to exist severe reaction conditions, can produce the problem of a large amount of iron containing sludges in the reaction process in order to solve to have now in the reaction of degradation of organic substances waste water, and the method that class Fenton-fluidized bed sewage processor is provided and has disposed of sewage.
Class Fenton-fluidized bed sewage processor, it mainly is made of first Fenton reactor, second Fenton reactor, lift pump, first recycle pump and second recycle pump; Be connected by lift pump between first Fenton reactor and second Fenton reactor; The first recycle pump two ends communicate with first Fenton reactor, and the second recycle pump two ends communicate with second Fenton reactor.
The method that class Fenton-fluidized bed sewage processor is disposed of sewage is carried out according to the following steps: one, be 5% H with fe and mass concentration 2O 2Solution adds in the interior sewage of first Fenton reactor, and the gas velocity of pressing 1mL/min is reacted 4~5min from first Fenton reactor bottom bubbling air; Two, open the effluent index BOD that first recycle pump is regulated control of reflux ratio first Fenton reactor 5/ COD Mn〉=0.30; Three, the first Fenton reactor water outlet is pumped in second Fenton reactor that the seed activity Al filler is housed by lift pump, adds H then 2O 2Solution, and to regulate water pH value with NaOH be 7.5~8.5; Four, open second recycle pump and regulate control of reflux ratio second Fenton reactor 2 water outlet BOD 5/ COD Mn〉=0.50, iron concentration≤1.5mg/L, water outlet is promptly finished and is disposed of sewage; H in the step 1 2O 2H in the solution 2O 2With COD in the sewage MnMass ratio be 0.8~1.5: 1; H 2O 2H in the solution 2O 2With the mol ratio of fe be 2.5~4: 1; H in the step 3 wherein 2O 2The add-on of solution is identical with step 1.
Class Fenton of the present invention-fluidized-bed precipitated crystal treatment process has overcome in the class Fenton process entire reaction lower owing to rate constant, has limited Fe in the reaction process 3+Return Fe 2+Reaction, make the circulation of iron ion be obstructed, reduced the degraded of organic pollutant in the waste water; Can generate Fe because of fe in the present invention 2+, while Fe 0Existence can be in time with the Fe that produces 3+Be reduced into Fe 2+, make Fe 2+Therefore working cycle is in time replenished, and will improve the concentration of OH and effective degradable organic pollutant in class Fenton of the present invention-fluidized-bed precipitated crystal method.
Fe in the present invention 3+At pH greater than will precipitated crystal more than 6, Fe in second Fenton reactor 3+Crystalline forming is because of Fe (OH) 3Crystal grain is moisture low, and the iron containing sludge amount will significantly reduce.
Description of drawings
Fig. 1 is class Fenton-fluidized bed sewage processor figure; Fig. 2 adopts the method for embodiment 17 to handle the COD and the variation diagram of BOD of waste water, among the figure COD with " " expression, BOD use " " expression.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: in conjunction with Fig. 1 present embodiment class Fenton-fluidized bed sewage processor is described, it mainly is made of first Fenton reactor 1, second Fenton reactor 2, lift pump 7, first recycle pump 3 and second recycle pump 9; Be connected by lift pump 7 between first Fenton reactor 1 and second Fenton reactor 2; First recycle pump, 3 two ends communicate with first Fenton reactor 1, and second recycle pump, 9 two ends communicate with second Fenton reactor 2.
Embodiment two: what present embodiment and embodiment one were different is in second Fenton reactor 2 seed activity aluminium to be housed, and wherein the diameter of seed activity aluminium is 2~5mm.Other step and parameter are identical with embodiment one.
Embodiment three: what present embodiment and embodiment one were different is in second Fenton reactor 2 seed activity aluminium to be housed, and wherein the diameter of seed activity aluminium is 3mm.Other step and parameter are identical with embodiment one.
Embodiment four: illustrate that in conjunction with Fig. 1 the method that present embodiment class Fenton-fluidized bed sewage processor is disposed of sewage carries out according to the following steps: one, with fe and mass concentration be 5% H 2O 2Solution adds in the sewage in first Fenton reactor 1, and the gas velocity of press 1mL/min is reacted 4~5min from first Fenton reactor, 1 bottom bubbling air; Two, open the effluent index BOD that first recycle pump 3 is regulated control of reflux ratio first Fenton reactor 1 5/ COD Mn〉=0.30; Three, 1 water outlet of first Fenton reactor is pumped in second Fenton reactor 2 that the seed activity Al filler is housed by lift pump 7, adds H then 2O 2Solution, and to regulate water pH value with NaOH be 7.5~8.5; Four, open second recycle pump 9 and regulate control of reflux ratio second Fenton reactor 2 water outlet BOD 5/ COD Mn〉=0.50, iron concentration≤1.5mg/L, water outlet is promptly finished and is disposed of sewage; H in the step 1 2O 2H in the solution 2O 2With COD in the sewage MnMass ratio be 0.8~1.5: 1; H 2O 2H in the solution 2O 2With the mol ratio of fe be 2.5~4: 1; H in the step 3 wherein 2O 2The add-on of solution is identical with step 1.
Class Fenton-fluidized bed sewage processor in the present embodiment, it is by the first Fenton device 1, the second Fenton device 2, first recycle pump 3, sump pump 4, air driven pump 5, H 2O 2Add pump 6, lift pump (7), rising pipe) and second recycle pump, 9 formations, it is characterized in that H 2O 2The discharge port that adds pump 6 is communicated with the opening for feed of the first Fenton device 1 and the second Fenton device, 2 bottoms respectively, the air outlet of air driven pump 5 be communicated with the first Fenton device 1 and the second Fenton device, 2 bottom air inlets respectively, the water-in of the water outlet of sump pump 4 and the first Fenton device, 1 bottom is communicated with, the water outlet on the first Fenton device, 1 top is communicated with by lift pump 7 with the water-in of the second Fenton device, 2 bottoms, the water outlet on the second Fenton device, 2 tops is communicated with the water-in of rising pipe 8, the water of the first Fenton device 1 circulates up and down at the first Fenton device 1 by recycle pump 3, the water of the second Fenton device 2 circulates up and down at the first Fenton device 2 by recycle pump 9, in the second Fenton device 2 the fluidisation carrier is housed; Wherein the fluidisation carrier is that diameter is 2~5mm seed activity aluminium.
The concentration precipitated crystal condition of control water iron ion can form hydroxyl hydrogen ferric oxide (FeOOH) crystal grain in the present embodiment step 4, because the hydroxyl hydrogen ferric oxide has good adsorption property and catalytic performance, can be used as the source of iron material, like this can be further to the oxidation removal of organic pollutant, thereby improve the ability of depolluting of total system.
Embodiment five: that present embodiment and embodiment four are different is H in the step 1 2O 2H in the solution 2O 2With COD in the sewage MnMass ratio be 0.9~1.2: 1.Other step and parameter are identical with embodiment four.
Embodiment six: that present embodiment and embodiment four are different is H in the step 1 2O 2H in the solution 2O 2With COD in the sewage MnMass ratio be 1: 1.Other step and parameter are identical with embodiment four.
Embodiment seven: that present embodiment is different with embodiment four or five is H in the step 1 2O 2H in the solution 2O 2With the mol ratio of fe be 3.2~3.8: 1.Other step and parameter are identical with embodiment four or five.
Embodiment eight: that present embodiment is different with embodiment four or five is H in the step 1 2O 2H in the solution 2O 2With the mol ratio of fe be 3.5: 1.Other step and parameter are identical with embodiment four or five.
Embodiment nine: present embodiment and embodiment seven are different be in the step 1 reaction times be 4.5min.Other step and parameter are identical with embodiment seven.
Embodiment ten: what present embodiment and embodiment four, five or nine were different is that effluent index is BOD in the step 2 5/ COD Mn0.40.Other step and parameter are identical with embodiment four, five or nine.
Embodiment 11: what present embodiment and embodiment four, five or nine were different is that effluent index is BOD in the step 2 5/ COD Mn=0.45.Other step and parameter are identical with embodiment four, five or nine.
Embodiment 12: present embodiment and embodiment ten are different is to be 7.8~8.2 with pH regulator in the step 3.Other step and parameter are identical with embodiment ten.
Embodiment 13: present embodiment and embodiment ten are different is to be 8.0 with pH regulator in the step 3.Other step and parameter are identical with embodiment ten.
Embodiment 14: what present embodiment and embodiment four, five, nine or 12 were different is that effluent index is BOD in the step 4 5/ COD Mn0.60.Other step and parameter are identical with embodiment four, five, nine or 12.
Embodiment 15: what present embodiment and embodiment four, five, nine or 12 were different is that effluent index is BOD in the step 4 5/ COD Mn=0.65.Other step and parameter are identical with embodiment four, five, nine or 12.
Embodiment 16: present embodiment and embodiment 14 are different is water iron concentration<1.2mg/L in the solution in the step 4.Other step and parameter are identical with embodiment 14.
Embodiment 16: present embodiment and embodiment 14 are different is water iron concentration=1.0mg/L in the solution in the step 4.Other step and parameter are identical with embodiment 14.
Embodiment 17: illustrate that in conjunction with Fig. 1 the method that present embodiment class Fenton-fluidized bed sewage processor is disposed of sewage carries out according to the following steps: one, with fe and mass concentration be 5% H 2O 2Solution adds in the sewage in first Fenton reactor 1, and the gas velocity of press 1mL/min is reacted 4.5min from first Fenton reactor, 1 bottom bubbling air; Two, open the effluent index BOD that first recycle pump 3 is regulated control of reflux ratio first Fenton reactor 1 5/ COD Mn=0.30; Three, 1 water outlet of first Fenton reactor is pumped in second Fenton reactor 2 that the seed activity Al filler is housed by lift pump 7, adds H then 2O 2Solution, and to regulate water pH value with NaOH be 8.0; Four, open second recycle pump 9 and regulate control of reflux ratio second Fenton reactor 2 water outlet BOD 5/ COD Mn=0.50, iron concentration=1.2mg/L, water outlet is promptly finished and is disposed of sewage; H in the step 1 2O 2H in the solution 2O 2With COD in the sewage MnMass ratio be 1: 1; H 2O 2H in the solution 2O 2With the mol ratio of fe be 3.5: 1; H in the step 3 wherein 2O 2The add-on of solution is identical with step 1.
The processing method of present embodiment, to certain chemical plant actual production wastewater treatment, check this chemical plant to contain kind surplus the multiple organism 40 such as acetic acid, furfural and alcohols, aldehydes, ketone, ester class, organic acid through gas-chromatography-mass spectroscopy, wherein based on acetic acid, furfural.Water sample shows transparence, shows yellowish colourity, pH is 1.5~2.5, COD is that 17000~19000mg/L, BOD are that 2700~2900mg/L, B/C0.16, biodegradability are not good.Detect through after half a year, detect effect as shown in Figure 2, as can be seen from Figure 2 water outlet does not almost have furfural and detects, but water outlet still contains the part carboxylic acid, water outlet COD is 16000~18000mg/L (COD descends not too obvious), and (be elevated to 9000~9500mg/L), B/C brings up to about 0.54 greatly in the BOD variation, water outlet has good biochemical activity, can satisfy the back in the requirement of biochemical processing process.

Claims (10)

1, class Fenton-fluidized bed sewage processor, it mainly is made of first Fenton reactor (1), second Fenton reactor (2), lift pump (7), first recycle pump (3) and second recycle pump (9); Be connected by lift pump (7) between first Fenton reactor (1) and second Fenton reactor (2); First recycle pump (3) two ends communicate with first Fenton reactor (1), and second recycle pump (9) two ends communicate with second Fenton reactor (2).
2, class Fenton-fluidized bed sewage processor according to claim 1: it is characterized in that in second Fenton reactor (2) seed activity aluminium being housed, wherein the diameter of seed activity aluminium is 2~5mm.
3, the method for disposing of sewage with the described class Fenton-fluidized bed sewage processor of claim 1 is characterized in that the method that class Fenton-fluidized bed sewage processor is disposed of sewage carries out according to the following steps: one, be 5% H with fe and mass concentration 2O 2Solution adds in the interior sewage of first Fenton reactor (1), and the gas velocity of pressing 1mL/min is reacted 4~5min from first Fenton reactor (1) bottom bubbling air; Two, open the effluent index BOD that first recycle pump (3) is regulated control of reflux ratio first Fenton reactor (1) 5/ COD Mn〉=0.30; Three, first Fenton reactor (1) water outlet is pumped in second Fenton reactor (2) that the seed activity Al filler is housed by lift pump (7), adds H then 2O 2Solution, and to regulate water pH value with NaOH be 7.5~8.5; Four, open second recycle pump (9) and regulate control of reflux ratio second Fenton reactor (2) water outlet BOD 5/ COD Mn〉=0.50, iron concentration≤1.5mg/L, water outlet is promptly finished and is disposed of sewage; H in the step 1 2O 2H in the solution 2O 2With COD in the sewage MnMass ratio be 0.8~1.5: 1; H 2O 2H in the solution 2O 2With the mol ratio of fe be 2.5~4: 1; H in the step 3 wherein 2O 2The add-on of solution is identical with step 1.
4, class Fenton-fluidized bed sewage processor according to claim 3 method of disposing of sewage is characterized in that H in the step 1 2O 2H in the solution 2O 2With COD in the sewage MnMass ratio be 0.9~1.2: 1.
5, the method for disposing of sewage according to claim 3 or 4 described class Fenton-fluidized bed sewage processors is characterized in that H in the step 1 2O 2H in the solution 2O 2With the mol ratio of fe be 3.2~3.8: 1.
6, class Fenton-fluidized bed sewage processor according to claim 5 method of disposing of sewage is characterized in that the reaction times is 4.5min in the step 1.
7, the method for disposing of sewage according to claim 3,4 or 6 described class Fenton-fluidized bed sewage processors is characterized in that effluent index is BOD in the step 2 5/ COD Mn0.40.
8, class Fenton-fluidized bed sewage processor according to claim 7 method of disposing of sewage is characterized in that in the step 3 with pH regulator being 7.8~8.2.
9, the method for disposing of sewage according to claim 3,4,6 or 8 described class Fenton-fluidized bed sewage processors is characterized in that effluent index is BOD in the step 4 5/ COD Mn0.60.
10, class Fenton-fluidized bed sewage processor according to claim 9 method of disposing of sewage is characterized in that in the step 4 water iron concentration<1.2mg/L in the solution.
CN2009100714636A 2009-02-27 2009-02-27 Fenton-like-fluidized bed sewage processor and sewerage treating method therefor Expired - Fee Related CN101486518B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100714636A CN101486518B (en) 2009-02-27 2009-02-27 Fenton-like-fluidized bed sewage processor and sewerage treating method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100714636A CN101486518B (en) 2009-02-27 2009-02-27 Fenton-like-fluidized bed sewage processor and sewerage treating method therefor

Publications (2)

Publication Number Publication Date
CN101486518A true CN101486518A (en) 2009-07-22
CN101486518B CN101486518B (en) 2011-06-15

Family

ID=40889605

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100714636A Expired - Fee Related CN101486518B (en) 2009-02-27 2009-02-27 Fenton-like-fluidized bed sewage processor and sewerage treating method therefor

Country Status (1)

Country Link
CN (1) CN101486518B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102249393A (en) * 2011-06-08 2011-11-23 武汉凯迪水务有限公司 Circulating fluidized bed advanced treatment equipment for industrial wastewater
CN102311163A (en) * 2011-04-04 2012-01-11 上海丰信环保科技有限公司 Remover for preprocessing garbage leachate
CN102674505A (en) * 2011-03-15 2012-09-19 吉林师范大学 Special equipment for treating organic sewage by utilizing electro-Fenton reaction
CN103073105A (en) * 2013-02-28 2013-05-01 陈振选 Method for removing hard biodegradable organic matters from sewage
CN103395908A (en) * 2013-07-09 2013-11-20 江南大学 Series type internal circulation Fenton fluidized-bed oxidizing tower
CN103641230A (en) * 2013-12-02 2014-03-19 哈尔滨工业大学 Method for carrying out organic wastewater pretreatment by using an iron-carbon-Fenton-integrated reactor
CN103755007A (en) * 2014-02-19 2014-04-30 南京大学 Fenton fluidized bed treatment device and waste water treatment method thereof
CN104192979A (en) * 2014-09-23 2014-12-10 南京大学 Fenton fluidized bed biochemical tail water advanced treatment method
CN105254067A (en) * 2015-10-28 2016-01-20 同济大学 Resource utilization method for advanced wastewater treatment Fenton method sludge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101088926A (en) * 2006-06-12 2007-12-19 深圳职业技术学院 Combined water-treating farrate-fenton reagent process
CN101254987B (en) * 2007-04-13 2010-11-24 东莞市英硫净水服务有限公司 Handling method for advanced purification of little-volume refractory wastewater and operation equipment
CN100564286C (en) * 2007-07-11 2009-12-02 浙江大学 A kind of method and apparatus of handling waste water containing metal complex

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102674505A (en) * 2011-03-15 2012-09-19 吉林师范大学 Special equipment for treating organic sewage by utilizing electro-Fenton reaction
CN102674505B (en) * 2011-03-15 2013-09-11 吉林师范大学 Special equipment for treating organic sewage by utilizing electro-Fenton reaction
CN102311163A (en) * 2011-04-04 2012-01-11 上海丰信环保科技有限公司 Remover for preprocessing garbage leachate
CN102249393A (en) * 2011-06-08 2011-11-23 武汉凯迪水务有限公司 Circulating fluidized bed advanced treatment equipment for industrial wastewater
CN103073105A (en) * 2013-02-28 2013-05-01 陈振选 Method for removing hard biodegradable organic matters from sewage
CN103395908B (en) * 2013-07-09 2015-06-03 江南大学 Series type internal circulation Fenton fluidized-bed oxidizing tower
CN103395908A (en) * 2013-07-09 2013-11-20 江南大学 Series type internal circulation Fenton fluidized-bed oxidizing tower
CN103641230A (en) * 2013-12-02 2014-03-19 哈尔滨工业大学 Method for carrying out organic wastewater pretreatment by using an iron-carbon-Fenton-integrated reactor
CN103755007A (en) * 2014-02-19 2014-04-30 南京大学 Fenton fluidized bed treatment device and waste water treatment method thereof
CN103755007B (en) * 2014-02-19 2015-07-08 南京大学 Fenton fluidized bed treatment device and waste water treatment method thereof
CN104192979A (en) * 2014-09-23 2014-12-10 南京大学 Fenton fluidized bed biochemical tail water advanced treatment method
CN104192979B (en) * 2014-09-23 2016-04-27 南京大学 A kind of method of Fenton fluidized bed deep treatment biochemical tail water
CN105254067A (en) * 2015-10-28 2016-01-20 同济大学 Resource utilization method for advanced wastewater treatment Fenton method sludge

Also Published As

Publication number Publication date
CN101486518B (en) 2011-06-15

Similar Documents

Publication Publication Date Title
CN101486518B (en) Fenton-like-fluidized bed sewage processor and sewerage treating method therefor
US7407580B2 (en) System and method for treating carbon, nitrogen, phosphorous containing wastewater
CN103755096B (en) Coupled Fenton oxidation and anaerobic digestion reactor for treating surplus sludge
CN103224309A (en) Leather waste water treatment system and treatment process
CN109761455A (en) A kind of processing method of synthesis and the class pharmaceuticals industry sewage that ferments
CN103910470A (en) System and method for treating comprehensive wastewater in chemical industrial parks
CN105502839A (en) Wastewater treatment system for livestock and poultry breeding
CN106277313A (en) A kind of energy-saving and cost-reducing sequencing batch activated sludge processes technique and device
CN204162499U (en) A kind of integrated ozone BAF
CN105439370B (en) A kind of process of combination BAF processing refinery sewage
CN1935681A (en) Anoxybiotic/aerobic two-section internal electrolysis organic waste water treating method
CN207016649U (en) Cumyl peroxide production wastewater treatment system
CN103787544B (en) Process the system of DCP waste water
CN105481092A (en) Sewage treatment device achieving automatic control function by monitoring N2O and control method
CN102786179A (en) Method for treatment and comprehensive utilization of high-concentration organic wastewater
CN201264955Y (en) Photocatalysis oxidation and biodegradation integrated gas lift type internal circulation reactor
CN101134623A (en) Method for comprehensive treatment of polluted water by inhibiting growth of blue algae
CN110240313A (en) The devices and methods therefor of Fenton processing refractory organic
CN104098221B (en) A kind for the treatment of process of hexanolactam sewage
CN1611457A (en) Method for treating or ganic waste water with nigh concentration
EP2526067B1 (en) A process for the thermophilic aerobic treatment of concentrated organic waste water and the related plant
CN107253816A (en) A kind of sludge conditioning device and its conditioning technique
CN202346816U (en) Three-phase reactor for Fenton reaction
CN100509661C (en) Treating technique of polyether polyatomic alcohol producing sewage recovering and utilization
CN110396479A (en) One acidproof flora and its application for handling Fenton acidic effluent

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20211009

Address after: 150000 room E101, No. 349, Keji 1st Street, building 3, innovation and entrepreneurship Plaza, science and technology innovation city, high tech Zone, Harbin, Heilongjiang Province

Patentee after: Harbin Youfang Water Purification Technology Co.,Ltd.

Address before: 150001 No. 92, xidazhi street, Nangang District, Harbin City, Heilongjiang Province

Patentee before: Harbin Institute of Technology

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110615