CN107879541A - A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment - Google Patents
A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment Download PDFInfo
- Publication number
- CN107879541A CN107879541A CN201711197688.7A CN201711197688A CN107879541A CN 107879541 A CN107879541 A CN 107879541A CN 201711197688 A CN201711197688 A CN 201711197688A CN 107879541 A CN107879541 A CN 107879541A
- Authority
- CN
- China
- Prior art keywords
- fluorine
- stage rainwater
- containing early
- early
- stage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The present invention discloses a kind of method using the fluorine-containing early-stage rainwater of coagulating sedimentation adsorption treatment, add milk of lime and adjust pH to alkalescence, aluminum salt and flocculation aid are added after adding calcium chloride, magnetic mixing, can reuse or discharge after more medium filter and the filtering of second order activity alumina filter after reaction precipitation.It is exceeded that a large amount of early-stage rainwater content of fluoride are produced in enterprise's early-stage rainwater of the invention for using villiaumite, do not reach the present situation of environmental requirement, there is provided a kind of method of the fluorine-containing early-stage rainwater processing of stability and high efficiency.This method is applied to the occasion that fluorine-containing early-stage rainwater fluoride concentration is no more than 200mg/L, and water outlet fluoride concentration can be controlled in 1mg/L.
Description
Technical field
The present invention relates to a kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, belong to sewage disposal technology
Field.
Background technology
The fluorine of nature is all compound state, is mainly had：Fluorite, fluor-apatite, ice crystal etc..They are all important chemical industry
Raw material, it is widely used in the industrial productions such as aluminium electroloysis, steel, cement, brick and tile, ceramics, phosphate fertilizer, glass, semiconductor, pharmacy.
The common trait of these industries is that raw material or auxiliary material are wanted based on fluorine-containing mineral, and in its smelting, in production process, fluorine is from ore deposit
Decomposed in thing and enter environment, cause fluoride pollution.To be fluorine-containing exceeded in the early-stage rainwater of these industries, fluorine ion is for outstanding behaviours
National regulation a class of pollutant, there is carcinogenesis to many organization systems of human body, such as directly discharge can cause seriously to environment
Destroy, thus waste water must through effectively processing after qualified discharge.
At present, domestic and international handled fluorine-containing industrial wastewater complicated component is various, and processing method also has a variety of, conventional masters
There are the precipitation method and the major class of absorption method two, in addition with hyperfiltration, ion-exchange-resin process, electrocoagulation, electroosmose process etc..
Although chemical precipitation method method is simple, processing cost is low, there is secondary pollution problem, treatment effect is also not ideal, water outlet fluorine
Compound content is extremely difficult to national grade one discharge standard in 15~30mg/L, and exist body refuse sedimentation slowly, processing big flow
The emission cycle is long, is not suitable for the defects of continuous discharge.The method is normally only used for the pretreatment of drinking water defluorination, to reach country
The fluorine-containing standard of drinking water also needs to further handle.Coagulant sedimentation can handle the higher waste water of fluorinated volume, economical and practical,
Equipment is simple, operation is easy, but exist dosage of PAC is larger, it is unstable to produce more reluctant waste residue, defluorination effect,
Sulfate ion also has in the water after increased trend, processing the problems such as containing substantial amounts of dissolving aluminium after fluorine removal.Absorption method is usual
It is only applicable to the processing of low fluorine amount waste water, or Oil repellent has dropped down to the advanced treating of waste water after l5~30mg/L pretreatment.Instead
Osmosis needs to carry out complicated pretreatment, and hyperfiltration equipment is expensive, and power consumption is also larger.Although electrocoagulation equipment is simple
List, operation are easy, but water producing cost is higher, and bad to the higher water treatment effect of fluorinated volume, thus are difficult to push away at present
Extensively.The exchange capacity and fluorine removing rate of ion-exchange-resin process are relatively low, and resin price is expensive, regeneration is costly, therefore still
There is not industrialization example.Electroosmose process device is complicated, and power consumption is big, and repair density is high, and the technical requirements of operating personnel are compared
Sternly, and in water easily cause membrane poisoning if any high volence metal ion, also have infringement to electrode.
In current case history, concentration can be controlled in 10mg/L ranks after fluoride wastewater treatment, but because environmental protection will
That asks is increasingly strict, and higher requirement is proposed to the discharge of industrial fluoride waste（It is required that draining content of fluoride is less than 3mg/L,
Even reach《Water environment quality standard》（GB3838-2002）Middle Group III water on fluoride concentration reach 1mg/L with
Under limit value.
The content of the invention
The purpose of the present invention is intended to a kind of method for the fluorine-containing early-stage rainwater processing for providing stability and high efficiency, to initial stage be present
The exceeded industrial enterprise of rainwater fluoride provides effective workaround.
The present invention uses following technical proposals：A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, pass through
Following each step：
（1）Hybrid reaction：Milk of lime is added in fluorine-containing early-stage rainwater and adjusts pH to alkalescence, then by fluorine-containing early-stage rainwater quality
0.2 ‰ ~ 1 ‰ add calcium chloride, magnetic are added by 0.02 ‰ ~ the 0.03 ‰ of fluorine-containing early-stage rainwater quality, after mixing 20 ~ 60min
Into coagulating basin；
（2）Coagulation：Aluminum salt is added by 0.2 ‰ ~ the 1 ‰ of fluorine-containing early-stage rainwater quality, in coagulating basin again by fluorine-containing first
0.01 ‰ ~ the 0.1 ‰ of phase rainwater quality add flocculation aid, 20 ~ 60min of coagulating, obtain mixed system；
（3）Precipitation：Using swash plate or association control sedimentation basin, mixed system is subjected to 20 ~ 60min of precipitation, takes upper water；
（4）Adjust pH：Upper water is entered into intermediate pool, pH to 7 is adjusted with hydrochloric acid or sulfuric acid；
（5）Filtering：The filtering residence time is carried out using quartz filter or more medium filter or active carbon filter
10min；
（6）Absorption：Adsorption filtration is carried out using two-stage activated alumina filter, 10 ~ 30min of single-stage residence time, drawn
Water can reuse or discharge.
The step（1）The granularity of magnetic be 80-200 mesh.
The step（1）Regulation pH to alkalescence be to adjust fluorine-containing early-stage rainwater to pH not less than 7 and no more than 9.This
It is due to that the pH sections are the higher pH sections of fluoride deposition efficiency；Calcium ion can also be introduced by adding milk of lime, make fluoride
Calcium fluoride precipitate is generated with calcium ion and is removed.
The step（2）Aluminum salt be aluminium polychloride.
The step（3）Precipitation return sludge ratio be 1 ~ 5：1.
The step（6）Activated alumina filter in the particle diameter of activated alumina filled be 0.5 ~ 2mm.
The effect for adding calcium chloride is to introduce calcium ion, fluoride is generated calcium fluoride precipitate with calcium ion and is removed.Add
Entering the effect of magnetic has two kinds：（1）Nucleus is formed, strengthens coagulation effect；（2）Accelerate precipitation, reduce the sedimentation time.Add aluminium salt
The effect of coagulant has two kinds：（1）Removed using fluoride with the flco that aluminium salt is formed；（2）Have the work of coagulant concurrently
With such as compression double electric layer, absorption charge neutrality, adsorption bridging, net are caught and sweep volume.The effect for adding flocculation aid is to promote precipitation to add
Speed, cohesive bridging action is played between micro- flocks, make flocks thick and have expansive surface, give full play to absorption winding effect to improve
Clarifying effect.The purpose of coagulating sedimentation section is to be lowered into the influent load of adsorption filtration section, extends the use of adsorption filtration section
Time and regeneration period.Coagulating sedimentation water outlet fluoride concentration typically can be controlled in 15 ~ 20mg/L.
Adsorption filtration section includes quartz sand filtration, multi-medium filtering or activated carbon filtering and activated alumina filtration, order
It is the filtering of quartz sand filtration, multi-medium filtering or activated carbon preceding, activated alumina is rear.Quartz sand filtration, multi-medium filtering
Or the effect of activated carbon filtering is to control the influent turbidity of activated alumina.Activated alumina filter uses secondary absorption mistake
Filter, reason are that primary activity aluminum oxide applies in general to occasion into below water 10mg/L, for 15 ~ 20mg/L of influent concentration,
Saturation is easily absorbing, causes water outlet to control water outlet fluoride concentration well with secondary absorption filtering more than 1 ~ 3mg/L
In below 1mg/L.
The method that the present invention handles fluorine-containing early-stage rainwater using " coagulating sedimentation+absorption ", it is intended to for the enterprise using villiaumite
It is exceeded that a large amount of early-stage rainwater content of fluoride are produced in industry early-stage rainwater, do not reach the present situation of environmental requirement, there is provided one kind is stable
The method of efficient fluorine-containing early-stage rainwater processing.This method is no more than 200mg/L suitable for fluorine-containing early-stage rainwater fluoride concentration
Occasion, water outlet fluoride concentration can be controlled in 1mg/L.
Brief description of the drawings
Fig. 1 is the process flow diagram of the present invention.
Embodiment
The present invention is described further with reference to embodiment and accompanying drawing.
Embodiment 1
Such as Fig. 1, processing equipment includes being sequentially connected the mixed reaction pond connect, coagulating basin, sedimentation basin, intermediate pool, multimedium mistake
Filter, primary activity alumina filter, second order activity alumina filter.The intermediate pool is provided with elevator pump, the water pump
It is connected by pipeline with more medium filter water inlet.The sedimentation basin sets sludge reflux pump, and sedimentation basin bed mud is back to
Mixed reaction pond, another part sludge are forced into after device for dehydrating sladge waste is dehydrated by sludge pump and transported outward.
（1）Hybrid reaction：Milk of lime is added in fluorine-containing early-stage rainwater and adjusts pH to 9, then by fluorine-containing early-stage rainwater quality
0.2 ‰ add calcium chloride, by fluorine-containing early-stage rainwater quality 0.02 ‰ add magnetics（The granularity of magnetic is 80-200 mesh）, mix
Enter coagulating basin after closing 30min；
（2）Coagulation：Aluminium polychlorides are added by the 0.2 ‰ of fluorine-containing early-stage rainwater quality, press fluorine-containing rain at initial stage again in coagulating basin
The 0.01 ‰ ‰ of water quality add flocculation aid, coagulating 30min, obtain mixed system；
（3）Precipitation：Using swash plate or association control sedimentation basin, mixed system is subjected to precipitation 60min, takes upper water；Return sludge ratio
For 3：1.
（4）Adjust pH：Upper water is entered into intermediate pool, pH to 7 is adjusted with hydrochloric acid or sulfuric acid；
（5）Filtering：The filtering residence time is carried out using quartz filter or more medium filter or active carbon filter
10min；
（6）Absorption：Adsorption filtration is carried out using two-stage activated alumina filter, the particle diameter of activated alumina is 0.5 ~ 2mm, single
Level residence time 10min, gained water outlet can reuse or discharge.
Embodiment 2
（1）Hybrid reaction：Milk of lime is added in fluorine-containing early-stage rainwater and adjusts pH to 8, then by fluorine-containing early-stage rainwater quality
0.3 ‰ add calcium chloride, and magnetic is added by the 0.02 ‰ of fluorine-containing early-stage rainwater quality（The granularity of magnetic is 80-200 mesh）,
Enter coagulating basin after mixing 20min；
（2）Coagulation：Aluminium polychlorides are added by the 0.3 ‰ of fluorine-containing early-stage rainwater quality, press fluorine-containing rain at initial stage again in coagulating basin
The 0.05 ‰ of water quality add flocculation aid, coagulating 20min, obtain mixed system；
（3）Precipitation：Using swash plate or association control sedimentation basin, mixed system is subjected to precipitation 60min, takes upper water；Return sludge ratio
For 1：1.
（4）Adjust pH：Upper water is entered into intermediate pool, pH to 7 is adjusted with hydrochloric acid or sulfuric acid；
（5）Filtering：The filtering residence time is carried out using quartz filter or more medium filter or active carbon filter
10min；
（6）Absorption：Adsorption filtration is carried out using two-stage activated alumina filter, the particle diameter of activated alumina is 0.5 ~ 2mm, single
Level residence time 20min, gained water outlet can reuse or discharge.
Embodiment 3
（1）Hybrid reaction：Milk of lime is added in fluorine-containing early-stage rainwater and adjusts pH to 7, then 1 ‰ by fluorine-containing early-stage rainwater quality
Calcium chloride is added, magnetic is added by the 0.03 ‰ of fluorine-containing early-stage rainwater quality（The granularity of magnetic is 80-200 mesh）, mix 60min
Enter coagulating basin afterwards；
（2）Coagulation：Aluminium polychlorides are added by the 1 ‰ of fluorine-containing early-stage rainwater quality, press fluorine-containing early-stage rainwater again in coagulating basin
The 0.1 ‰ of quality add flocculation aid, coagulating 60min, obtain mixed system；
（3）Precipitation：Using swash plate or association control sedimentation basin, mixed system is subjected to precipitation 60min, takes upper water；Return sludge ratio
For 5：1.
（4）Adjust pH：Upper water is entered into intermediate pool, pH to 7 is adjusted with hydrochloric acid or sulfuric acid；
（5）Filtering：The filtering residence time is carried out using quartz filter or more medium filter or active carbon filter
10min；
（6）Absorption：Adsorption filtration is carried out using two-stage activated alumina filter, the particle diameter of activated alumina is 0.5 ~ 2mm, single
Level residence time 30min, gained water outlet can reuse or discharge.
Processing water obtained by the various embodiments described above is as a result as shown in the table by being detected to water quality index：
Table 1 is to fluorine-containing early-stage rainwater fluoride index removal effect
It can be seen that provided by the invention handle the method for fluorine-containing early-stage rainwater to early-stage rainwater fluoride using " magnetic flocculation+absorption "
There is significant removal effect, the water quality after processing is reachable《Water environment quality standard》（GB3838-2002）Middle Group III water
Reach below 1mg/L limit value requirement on fluoride concentration.
Claims (6)
- A kind of 1. method using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, it is characterised in that pass through following each step：（1）Hybrid reaction：Milk of lime is added in fluorine-containing early-stage rainwater and adjusts pH to alkalescence, then by fluorine-containing early-stage rainwater quality 0.2 ‰ ~ 1 ‰ add calcium chloride, add magnetic by 0.02 ‰ ~ the 0.03 ‰ of fluorine-containing early-stage rainwater quality, mix 20 ~ 60min；（2）Coagulation：By 0.2 ‰ ~ 1 ‰ addition aluminum salts of fluorine-containing early-stage rainwater quality, fluorine-containing early-stage rainwater quality is pressed again 0.01 ‰ ~ 0.1 ‰ add flocculation aids, 20 ~ 60min of coagulating, obtain mixed system；（3）Precipitation：Mixed system is subjected to 20 ~ 60min of precipitation, takes upper water；（4）Adjust pH：By upper water hydrochloric acid or sulfuric acid adjustment pH to 7；（5）Filtering：The filtering residence time is carried out using quartz filter or more medium filter or active carbon filter 10min；（6）Absorption：Adsorption filtration is carried out using two-stage activated alumina filter, 10 ~ 30min of single-stage residence time, drawn Water can reuse or discharge.
- 2. the method according to claim 1 using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, it is characterised in that：Institute State step（1）The granularity of magnetic be 80-200 mesh.
- 3. the method according to claim 1 using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, it is characterised in that：Institute State step（1）Regulation pH to alkalescence be to adjust fluorine-containing early-stage rainwater to pH not less than 7 and no more than 9.
- 4. the method according to claim 1 using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, it is characterised in that：Institute State step（2）Aluminum salt be aluminium polychloride.
- 5. the method according to claim 1 using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, it is characterised in that：Institute State step（3）Precipitation return sludge ratio be 1 ~ 5：1.
- 6. the method according to claim 1 using the fluorine-containing early-stage rainwater of magnetic flocculation-adsorption treatment, it is characterised in that：Institute State step（6）Activated alumina filter in the particle diameter of activated alumina filled be 0.5 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197688.7A CN107879541A (en) | 2017-11-25 | 2017-11-25 | A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197688.7A CN107879541A (en) | 2017-11-25 | 2017-11-25 | A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107879541A true CN107879541A (en) | 2018-04-06 |
Family
ID=61775218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711197688.7A Pending CN107879541A (en) | 2017-11-25 | 2017-11-25 | A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107879541A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640335A (en) * | 2018-05-03 | 2018-10-12 | 陈玉丹 | A kind of processing method of fluoride waste |
| CN114656099A (en) * | 2022-03-25 | 2022-06-24 | 东莞东元环境科技股份有限公司 | Method and system for recovering fluorine-containing wastewater |
| CN114956479A (en) * | 2022-06-20 | 2022-08-30 | 北京耐特尔环境工程技术有限公司 | Treatment method for deep defluorination and denitrification of drained water |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445173A (en) * | 2002-03-16 | 2003-10-01 | 张春海 | Method for removing fluoride in water |
| CN1613792A (en) * | 2004-10-19 | 2005-05-11 | 上海地球工程咨询有限公司 | Overflowing rain water settling method |
| CN101402493A (en) * | 2008-10-31 | 2009-04-08 | 浙江汉盛氟化学有限公司 | Method for treating high-fluorine sewage water |
| CN102126799A (en) * | 2011-01-17 | 2011-07-20 | 无锡德宝水务投资有限公司 | Method for treating fluorine-containing and ammonia nitrogen-containing waste water in electronic industry |
| CN102992518A (en) * | 2012-11-27 | 2013-03-27 | 常州大学 | Treatment method of fluoride wastewater |
| CN103936218A (en) * | 2014-04-21 | 2014-07-23 | 江苏省环境科学研究院 | Method for realizing approximate zero discharge of high-fluorine-content and high-nitrogen-content battery production waste water in photovoltaic industry |
| CN203922951U (en) * | 2014-07-01 | 2014-11-05 | 广东梅雁吉祥水电股份有限公司 | A kind of fluorine-contained wastewater treatment system |
| CN104496063A (en) * | 2014-11-17 | 2015-04-08 | 中国石油集团东北炼化工程有限公司吉林设计院 | Method for removing fluorine in wastewater |
| CN105060430A (en) * | 2015-07-29 | 2015-11-18 | 西安建筑科技大学 | Sustain-released coagulant and device using same to process initial rainwater |
| CN205133297U (en) * | 2015-11-13 | 2016-04-06 | 中机国际（湖南）环保科技有限公司 | A device for handling fluoride waste |
| CN105692825A (en) * | 2016-01-21 | 2016-06-22 | 天津大学 | Pumping station drainage device for fast processing rainwater by utilizing magnetic flocculation technology and processing method thereof |
| CN107324465A (en) * | 2017-07-24 | 2017-11-07 | 温州大学 | A kind of integrated Waste Water Treatment of magnetic-coagulation and method |
-
2017
- 2017-11-25 CN CN201711197688.7A patent/CN107879541A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1445173A (en) * | 2002-03-16 | 2003-10-01 | 张春海 | Method for removing fluoride in water |
| CN1613792A (en) * | 2004-10-19 | 2005-05-11 | 上海地球工程咨询有限公司 | Overflowing rain water settling method |
| CN101402493A (en) * | 2008-10-31 | 2009-04-08 | 浙江汉盛氟化学有限公司 | Method for treating high-fluorine sewage water |
| CN102126799A (en) * | 2011-01-17 | 2011-07-20 | 无锡德宝水务投资有限公司 | Method for treating fluorine-containing and ammonia nitrogen-containing waste water in electronic industry |
| CN102992518A (en) * | 2012-11-27 | 2013-03-27 | 常州大学 | Treatment method of fluoride wastewater |
| CN103936218A (en) * | 2014-04-21 | 2014-07-23 | 江苏省环境科学研究院 | Method for realizing approximate zero discharge of high-fluorine-content and high-nitrogen-content battery production waste water in photovoltaic industry |
| CN203922951U (en) * | 2014-07-01 | 2014-11-05 | 广东梅雁吉祥水电股份有限公司 | A kind of fluorine-contained wastewater treatment system |
| CN104496063A (en) * | 2014-11-17 | 2015-04-08 | 中国石油集团东北炼化工程有限公司吉林设计院 | Method for removing fluorine in wastewater |
| CN105060430A (en) * | 2015-07-29 | 2015-11-18 | 西安建筑科技大学 | Sustain-released coagulant and device using same to process initial rainwater |
| CN205133297U (en) * | 2015-11-13 | 2016-04-06 | 中机国际（湖南）环保科技有限公司 | A device for handling fluoride waste |
| CN105692825A (en) * | 2016-01-21 | 2016-06-22 | 天津大学 | Pumping station drainage device for fast processing rainwater by utilizing magnetic flocculation technology and processing method thereof |
| CN107324465A (en) * | 2017-07-24 | 2017-11-07 | 温州大学 | A kind of integrated Waste Water Treatment of magnetic-coagulation and method |
Non-Patent Citations (1)
| Title |
|---|
| 刘操: "《城镇污水处理及再生利用工艺手册》", 30 April 2015, 北京：中国环境出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640335A (en) * | 2018-05-03 | 2018-10-12 | 陈玉丹 | A kind of processing method of fluoride waste |
| CN114656099A (en) * | 2022-03-25 | 2022-06-24 | 东莞东元环境科技股份有限公司 | Method and system for recovering fluorine-containing wastewater |
| CN114956479A (en) * | 2022-06-20 | 2022-08-30 | 北京耐特尔环境工程技术有限公司 | Treatment method for deep defluorination and denitrification of drained water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bourgeois et al. | Treatment of drinking water residuals: comparing sedimentation and dissolved air flotation performance with optimal cation ratios | |
| CN100457645C (en) | Zero discharge and circular utilization method of industrial effluent in regeneration treatment | |
| CN101948215B (en) | Garbage leachate treatment process | |
| CN105967294A (en) | Defluorination flocculation reaction method for fluorine-containing wastewater | |
| CN204325024U (en) | A kind of novel lead-acid storage battery heavy metal waste water treatment system | |
| CN103991987A (en) | Process for pre-treating high-concentration phosphorus-containing wastewater to remove total phosphorus (TP) and process system thereof | |
| CN101041485A (en) | Metal smelting factory sewage reclaiming method based on membrane filtering technique | |
| CN107879541A (en) | A kind of method using the fluorine-containing early-stage rainwater of magnetic flocculation adsorption treatment | |
| KR100957851B1 (en) | Method of water treatment | |
| CN102126799A (en) | Method for treating fluorine-containing and ammonia nitrogen-containing waste water in electronic industry | |
| JP6611480B2 (en) | Sewage treatment method, phosphorus resource production method | |
| CN110776142A (en) | Physicochemical coagulation defluorination and precipitation integrated wastewater treatment method | |
| CN107176726A (en) | Desulphurization for Coal-fired Power Plant waste water integrates defluorination method | |
| CN1504430A (en) | Method for reclamation and utilization of oil refining sewage | |
| CN104803542A (en) | Integrated treatment and reuse technology of esterification wastewater | |
| CN107673518A (en) | A kind of method using the fluorine-containing early-stage rainwater of coagulating sedimentation adsorption treatment | |
| CN111977911A (en) | Method for treating leachate wastewater in electrolytic aluminum slag yard | |
| CN105859061A (en) | Method for treating comprehensive wastewater in rare-earth industrial park by utilizing biochemical pool | |
| CN106430846A (en) | Efficient treatment integrated process for recalcitrant wastewater with low organic matter content | |
| CN103193352A (en) | Deep processing method of wastewater during production of diclofenac | |
| CN109704505A (en) | A kind of plasma effluent purification method | |
| CN211871618U (en) | Device for treating desulfurization wastewater by composite method | |
| JP5072780B2 (en) | Fluorine waste water treatment method using titanium oxide and metatitanic acid | |
| CN211497218U (en) | Desulfurization waste water ammonia nitrogen processing system | |
| CN209065692U (en) | A kind of sanitary wastewater and metallurgical waste water combined apparatus |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180406 |
|
| WD01 | Invention patent application deemed withdrawn after publication |