CN105712529A - Method for treating high-concentration acidic wastewater containing fluorine and phosphorus - Google Patents
Method for treating high-concentration acidic wastewater containing fluorine and phosphorus Download PDFInfo
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- CN105712529A CN105712529A CN201610062943.6A CN201610062943A CN105712529A CN 105712529 A CN105712529 A CN 105712529A CN 201610062943 A CN201610062943 A CN 201610062943A CN 105712529 A CN105712529 A CN 105712529A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F1/5209—Regulation methods for flocculation or precipitation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a method for treating high-concentration acidic wastewater containing fluorine and phosphorus. Three-stage neutralization and three-level flocculent precipitation are adopted for treating wastewater, and technological conditions of each-level neutral reaction are controlled for treating wastewater. The method comprises the specific steps of 1, controlling technological indexes of first-level neutralization, wherein the pH ranges from 2.4-4.0, the reaction time is not shorter than 40 min, and the temperature is not lower than 40 DEG C; 2, controlling technological indexes of second-level neutralization, wherein pH is 5.0-7.0, the reaction time is not shorter than 50 min, and the water temperature is not lower than 30 DEG C; 3, controlling technological indexes of third-level neutralization, wherein pH ranges from 9.6-10.5, the reaction time is not shorter than 40 min, and the water temperature is not lower than 30 DEG C. Due to the fact that the control indexes of each level of the technological process are optimized, the removal rate of phosphorus and fluorine pollution parameters in wastewater is increased, the related requirement of the GB15580-2011 phosphate fertilizer industry industrial water pollution discharge standard is met, and the treatment cost is not high. The technological adaptability is wide and the method is applicable to treating wastewater in phosphate fertilizer production.
Description
Technical field
The present invention relates to production of phosphate fertilizer, be directed to phosphorous waste water and process, particularly relate to the process side of acid phosphorus fluorine waste water
Method.
Background technology
The phosphate fertilizer method of wastewater treatment of traditional high phosphorus Oil repellent mainly has following three kinds: 1. one-level neutralization+one-level precipitation
Method, i.e. adds lime cream in phosphorus fluorine waste water, pH is directly adjusted to more than 11, then slip is carried out clarifying treatment, reach with this
To removing Phosphorus From Wastewater, the purpose of fluorine, this method has that technique is simple, invest less advantage, but after there is precipitation
Phosphorus in clear liquid, Oil repellent are higher, do not reach GB " phosphate fertilizer industry industrial water pollution thing discharge standard " (GB15580-2011) phase
Close regulation.2. two grades of neutralization+two-stage sedimentation method are first to use lime cream flavoring agent slurry pH value to 4～6, and reactant liquor passes through flocculating sedimentation
After again with lime cream flavoring agent starch pH to 9～11, the purpose reaching efficiently to remove Phosphorus From Wastewater fluorine with this, the method precipitation after clear
Hydroful foot " phosphate fertilizer industry industrial water pollution thing discharge standard " (GB15580-95) related request, but can not fully meet
GB15580-2011 latest requirement.3. three grades neutralize+three grades of flocculent precipitations, in one-level lime cream and slip pH value be 6～7,
During two grades of neutralizations, pH is 8～9, and during three grades of neutralizations, pH value is 10～11, and the clear liquid after the method precipitation meets " phosphate fertilizer industry industry
Pollution discharge standard " (GB15580-2011) related request, [P], [F] content can be controlled in 10 × 10-6Left and right.
More and more higher along with environmental requirement, " phosphate fertilizer industry industrial water pollution thing discharge standard " relevant regulations will increasingly
Strictly, its Pollutant emission concentration will level off to the pollutant levels index of surface water three class water, therefore, tradition phosphorus fluorine waste water
Process technique and seemed delayed.
Through retrieval, the patents and patent applications part relating to the process of production of phosphate fertilizer waste water in Chinese patent database has 17
Part, such as: No. ZL200510003102X " a kind of method comprehensively utilizing phosphate fertilizer and phosphorous chemical industry industrial wastewater ",
No. ZL2009101029792 " a kind of method processing ammonia nitrogen wastewater of phosphatic fertilizer company ", No. 2011102927263 " one phosphate fertilizer
Factory's waste water produces the method for calcium hydrophosphate fodder ",
No. ZL201310001658X " utilizing the method that phosphorus mine tailing and acid waste water prepare phosphate fertilizer soil conditioner ",
2015104810337 " a kind of low cost waste water phosphate fertilizer production technologies " etc..These patented technologies still fall within traditional side
Method, it is impossible to fully meet GB15580-2011 latest requirement.
Summary of the invention
It is desirable to provide the processing method of a kind of high-concentration acidic wastewater phosphorus fluorine waste water, to overcome traditional handicraft to high concentration
The shortcoming that phosphorus fluorine phosphorus in waste water removal efficiency of flouride is relatively low, it is ensured that realize efficiently removing Phosphorus From Wastewater fluorine, waste water disclosure satisfy that after processing
GB15580-2011 latest requirement.
The processing method of the high-concentration acidic wastewater phosphorus fluorine waste water of the present invention, still uses three grades and neutralizes+three grades of flocculation sediments
Method, i.e. high-concentration acidic wastewater phosphorus fluorine waste water pass sequentially through in one-level and reactive tank, one-level subsider, two grades neutralize reactive tank, two grades
Subsider, three grades of neutralizations reactive tank, three grades of subsiders, each reactive tank adds lime cream, and each subsider adds flocculant；The present invention
By controlling the process conditions neutralizing reaction at different levels, reaching goal of the invention, the way that each step is concrete includes:
(1) technic index that one-level neutralizes is controlled
High-concentration acidic wastewater phosphorus fluorine waste water and lime cream are carried out in the first order and when reacting, and controlling pH index is 2.4～4.0, removes
A large amount of fluorides in waste water, it is to avoid a large amount of fluoride impacts on phosphate radical clearance in subsequent reactions water, when wastewater pH is higher than 2
Time, add sulfur waste acid for adjusting pH value；The control response time, not less than 40min, controls temperature and is not less than 40 DEG C；
(2) two grades of technic indexs neutralized are controlled
After the slip of first order reaction carries out clarifying treatment, clear liquid carries out in the lime cream of the second level and reaction, controls pH index and is
5.0～7.0, after making two grades to neutralize reaction, fluorion, less than 30ppm, lays base for efficiently removing of phosphorus fluorine in follow-up water in water
Plinth；The control response time, not less than 50min, controls water temperature and is not less than 30 DEG C；
(3) three grades of technic indexs neutralized are controlled
After the slip of second level reaction carries out clarifying treatment, clear liquid carries out in third level lime cream and reaction, controls pH index and is
9.6～10.5, after making three grades to neutralize reaction, in water, fluoride (in terms of F) is less than 1ppm less than 5ppm, phosphate (in terms of P)；Control
Response time processed is not less than 40min, and water temperature is not less than 30 DEG C.
In (1st) step of said method, described high-concentration acidic wastewater phosphorus fluorine waste water is that [P] content, [F] content exist respectively
0.6%, more than 0.4%, pH value waste water below 2.0；Quick lime CaO mass fraction used by the preparation of described lime cream is not less than
70%, lime cream setup time is more than 30min.
In said method, the measure of described control temperature is to add steam.
In said method, the flocculant of described addition is PAM.
The inventive method is optimized at the Con trolling index of response time, temperature and the pH value in technological process each stage,
It is greatly enhanced the clearance of high concentration phosphorus fluorine Phosphorus From Wastewater fluoride pollution index, reaches " phosphate fertilizer industry industrial water pollution thing discharge
Standard " (GB15580-2011) related request, and also it is the most few to increase cost for wastewater treatment.Instant invention overcomes traditional handicraft to lack
Point, Technological adaptability is wide, and [P]≤2.2%, [F]≤1.2% in waste water all can take the inventive method to carry out waste water process.Process
After water quality fully meet GB15580-2011 latest requirement.Waste water be applicable to production of phosphate fertilizer processes.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the inventive method.
Detailed description of the invention
Following example are in order to illustrate technical scheme:
The waste water that certain phosphate fertilizer plant production process produces, [P] content, [F] content is respectively 1.57%, 0.9%, and pH value is 1.46.Should
Station-service three grades neutralizes+three grades of flocculent precipitations and processes waste water, as shown in Figure 1, waste water passes sequentially through in one-level and reactive tank,
One-level subsider, two grades of neutralization reactive tanks, secondary settling tank, three grades of neutralizations reactive tank, three grades of subsiders, each reactive tank adds stone
Ash breast, the quick lime CaO mass fraction used by lime cream preparation is not less than 70%, and lime cream setup time is more than 30min；Each heavy
Fall groove adds flocculant PAM；The way that each step is concrete is:
(1) technic index that one-level neutralizes is controlled
Waste water and lime cream are carried out in the first order and when reacting, and controlling pH index is 2.4～4.0, removes in waste water and is fluorinated in a large number
Thing, it is to avoid a large amount of fluoride impacts on phosphate radical clearance in subsequent reactions water, when wastewater pH is higher than 2, adds Waste Sulfuric Acid
Regulation pH value；The control response time, not less than 40min, controls temperature and is not less than 40 DEG C, if temperature is less than 40 DEG C, adds steam guarantor
Temperature；
(2) two grades of technic indexs neutralized are controlled
After the slip of first order reaction carries out clarifying treatment, clear liquid carries out in the lime cream of the second level and reaction, controls pH index and is
5.0～7.0, after making two grades to neutralize reaction, in water, fluorion is less than 30ppm, lays base for efficiently removing of phosphorus fluorine in follow-up water
Plinth；The control response time, not less than 50min, controls water temperature and is not less than 30 DEG C, if water temperature is less than 30 DEG C, adds steam insulation；
(3) three grades of technic indexs neutralized are controlled
After the slip of second level reaction carries out clarifying treatment, clear liquid carries out in third level lime cream and reaction, controls pH index and is
9.6～10.5, after making three grades to neutralize reaction, in water, fluoride content in terms of F is less than less than 5ppm, the phosphate content in terms of P
1ppm；The control response time, water temperature was not less than 30 DEG C not less than 40min, if water temperature is less than 30 DEG C, added steam insulation.
Claims (4)
1. a processing method for high-concentration acidic wastewater phosphorus fluorine waste water, uses three grades to neutralize+three grades of flocculent precipitations, i.e. high concentration
Acid phosphorus fluorine waste water passes sequentially through in one-level and reactive tank, one-level subsider, two grades neutralize reactive tank, secondary settling tank, three grades
Neutralizing reactive tank, three grades of subsiders, each reactive tank adds lime cream, and each subsider adds flocculant；It is characterized in that by control
Making the process conditions neutralizing reaction at different levels, reach to process the purpose of high-concentration acidic wastewater phosphorus fluorine waste water, concrete way includes:
(1) technic index that one-level neutralizes is controlled
High-concentration acidic wastewater phosphorus fluorine waste water and lime cream are carried out in the first order and when reacting, and controlling pH index is 2.4～4.0, removes
A large amount of fluorides in waste water, it is to avoid a large amount of fluoride impacts on phosphate radical clearance in subsequent reactions water, when wastewater pH is higher than 2
Time, add sulfur waste acid for adjusting pH value；The control response time, not less than 40min, controls temperature and is not less than 40 DEG C；
(2) two grades of technic indexs neutralized are controlled
After the slip of first order reaction carries out clarifying treatment, clear liquid carries out in the lime cream of the second level and reaction, controls pH index and is
5.0～7.0, after making two grades to neutralize reaction, in water, fluorion is less than 30ppm, lays base for efficiently removing of phosphorus fluorine in follow-up water
Plinth；The control response time, not less than 50min, controls water temperature and is not less than 30 DEG C；
(3) three grades of technic indexs neutralized are controlled
After the slip of second level reaction carries out clarifying treatment, clear liquid carries out in third level lime cream and reaction, controls pH index and is
9.6～10.5, after making three grades to neutralize reaction, in water, fluoride content in terms of F is less than less than 5ppm, the phosphate content in terms of P
1ppm；The control response time, water temperature was not less than 30 DEG C not less than 40min.
2. the method for claim 1, it is characterised in that in described (1st) step, described high-concentration acidic wastewater phosphorus fluorine waste water is
[P] content, [F] content respectively 0.6%, more than 0.4%, pH value waste water below 2.0；Used by the preparation of described lime cream
Quick lime CaO mass fraction is not less than 75%, and lime cream setup time is more than 30min.
3. the method for claim 1, it is characterised in that it is to add steam that described each step controls the measure of temperature.
4. the method for claim 1, it is characterised in that the flocculant of described addition is PAM.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610062943.6A CN105712529A (en) | 2016-03-29 | 2016-03-29 | Method for treating high-concentration acidic wastewater containing fluorine and phosphorus |
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| CN201610062943.6A CN105712529A (en) | 2016-03-29 | 2016-03-29 | Method for treating high-concentration acidic wastewater containing fluorine and phosphorus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205854A (en) * | 2018-10-29 | 2019-01-15 | 贵州川恒化工股份有限公司 | The new method of the synchronous deep phosphorous removal fluorine of the inorganic sewage of phosphorous chemical industry |
| CN110143693A (en) * | 2019-05-28 | 2019-08-20 | 贵州开磷集团矿肥有限责任公司 | A kind of processing method of the inorganic phosphorated fluorine sewage of high concentration |
| CN110548317A (en) * | 2019-09-20 | 2019-12-10 | 瓮福达州化工有限责任公司 | Flocculating agent and impurity sedimentation system suitable for wet-process phosphoric acid production |
| CN111233194A (en) * | 2020-01-15 | 2020-06-05 | 东江环保股份有限公司 | Method for treating waste liquid |
| CN111252873A (en) * | 2020-02-20 | 2020-06-09 | 中国科学院过程工程研究所 | Source inhibition method for acid mine wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724405A (en) * | 2005-06-28 | 2006-01-25 | 贵州宏福实业开发有限总公司 | Process for treating and controlling acid waste water containing fluorine |
| CN203065286U (en) * | 2013-01-24 | 2013-07-17 | 瓮福（集团）有限责任公司 | Phosphorus fertilizer acid wastewater treatment device |
| CN103613181A (en) * | 2013-11-29 | 2014-03-05 | 瓮福（集团）有限责任公司 | Method for treating phosphogypsum slag dump pool water by using low-grade lime |
| KR20140077251A (en) * | 2012-12-12 | 2014-06-24 | 주식회사 지앤지인텍 | Apparatus for Removing Fluoride in Water and Method for Removing Fluoride in Water |
| CN105084943A (en) * | 2015-08-10 | 2015-11-25 | 中国科学院城市环境研究所 | Low-cost waste water phosphorus fertilizer production technology |
-
2016
- 2016-03-29 CN CN201610062943.6A patent/CN105712529A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724405A (en) * | 2005-06-28 | 2006-01-25 | 贵州宏福实业开发有限总公司 | Process for treating and controlling acid waste water containing fluorine |
| KR20140077251A (en) * | 2012-12-12 | 2014-06-24 | 주식회사 지앤지인텍 | Apparatus for Removing Fluoride in Water and Method for Removing Fluoride in Water |
| CN203065286U (en) * | 2013-01-24 | 2013-07-17 | 瓮福（集团）有限责任公司 | Phosphorus fertilizer acid wastewater treatment device |
| CN103613181A (en) * | 2013-11-29 | 2014-03-05 | 瓮福（集团）有限责任公司 | Method for treating phosphogypsum slag dump pool water by using low-grade lime |
| CN105084943A (en) * | 2015-08-10 | 2015-11-25 | 中国科学院城市环境研究所 | Low-cost waste water phosphorus fertilizer production technology |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205854A (en) * | 2018-10-29 | 2019-01-15 | 贵州川恒化工股份有限公司 | The new method of the synchronous deep phosphorous removal fluorine of the inorganic sewage of phosphorous chemical industry |
| CN110143693A (en) * | 2019-05-28 | 2019-08-20 | 贵州开磷集团矿肥有限责任公司 | A kind of processing method of the inorganic phosphorated fluorine sewage of high concentration |
| CN110548317A (en) * | 2019-09-20 | 2019-12-10 | 瓮福达州化工有限责任公司 | Flocculating agent and impurity sedimentation system suitable for wet-process phosphoric acid production |
| CN111233194A (en) * | 2020-01-15 | 2020-06-05 | 东江环保股份有限公司 | Method for treating waste liquid |
| CN111252873A (en) * | 2020-02-20 | 2020-06-09 | 中国科学院过程工程研究所 | Source inhibition method for acid mine wastewater |
| CN111252873B (en) * | 2020-02-20 | 2021-06-08 | 中国科学院过程工程研究所 | Source inhibition method for acid mine wastewater |
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Application publication date: 20160629 |