CN105016443A - Method for removal of sulfur ions from wastewater by aeration coagulation - Google Patents
Method for removal of sulfur ions from wastewater by aeration coagulation Download PDFInfo
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- CN105016443A CN105016443A CN201510375592.XA CN201510375592A CN105016443A CN 105016443 A CN105016443 A CN 105016443A CN 201510375592 A CN201510375592 A CN 201510375592A CN 105016443 A CN105016443 A CN 105016443A
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- wastewater
- waste water
- aeration
- sulfonium ion
- sulfur ions
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Abstract
The invention relates to a method for removal of sulfur ions from wastewater by aeration coagulation. The method includes: adding a mixture of polymeric ferric sulfate and ferrous sulfate into sulfur ion-containing wastewater, with the mole ratio of sulfur ions in the wastewater to ferrous sulfate being 1:1-1:3, and the mass ratio of ferrous sulfate to polymeric ferric sulfate being 1:0.5-1:5, then carrying out aeration reaction for 1-5h, keeping the aeration rate at 1-50m<3>/min.m<3>, conducting sedimentation for 0.5-2h, and letting fine iron sulfide particles flocculate into large particles and precipitate, thus realizing the effect of removing sulfur ions from wastewater. Compared with the existing methods of removing sulfur ions from wastewater, the method provided by the invention has the advantages of simple process and low cost, and therefore can be used for removal of sulfur ions from industrial wastewater and domestic sewage.
Description
(1) technical field:
The present invention relates to a kind of method removing sulfonium ion in waste water, mainly relate to a kind of method that aeration coagulation removes sulfonium ion in waste water.
(2) background technology:
In waste water, solvability sulfide is larger to environmental hazard, the hardwares such as sulfur-containing anion waste water meeting corrosion pipeline, time has been grown and can generate sulfuric acid with the microbial reaction in waste water, strengthen its acid and corrodibility, waste water structures, pipeline etc. are run well and produce a very large impact, therefore produce, live in sulfur-containing anion waste water must be in addition appropriate process.In recent years, people often adopt the precipitator method, absorption method etc. to remove sulfonium ion in waste water." environmental science " periodical the 9th phase report in 2008, the people such as Xi Hongbo adopt homemade Nanoscale Iron to S in sulfur-containing waste water
2-adsorption treatment, but because Nanoscale Iron is to S
2-absorption reaction limited efficiency, in addition, Nanoscale Iron price is higher, therefore, is difficult to industrially large-scale application.
(3) summary of the invention:
The object of the invention is to provide a kind of method removing sulfonium ion in waste water, for all many-sides such as removal of sulfonium ion in trade effluent, sanitary sewage.
The object of the present invention is achieved like this:
Bodied ferric sulfate and ferrous sulfate mixture are joined in sulfur-containing anion waste water, in waste water, the mol ratio of sulfonium ion and ferrous sulfate is 1: 1-1: 3, the mass ratio of ferrous sulfate and bodied ferric sulfate is 1: 0.5-1: 5, then aerated reaction 1-5 hour, precipitate after 0.5-2 hour, in primary water, most of sulfonium ion is removed.
Wherein in waste water, the concentration of sulfonium ion is 1-100mg/L.
Wherein aeration rate is for being 1-50m
3/ minm
3.
The present invention adopts bodied ferric sulfate and ferrous sulfate mixture as reaction reagent, in aeration process, in ferrous ion and waste water, sulfonium ion reacts, generate tiny iron sulfide precipitates particle, bodied ferric sulfate is as inorganic polymer coagulating agent, tiny iron-sulphide particles can be flocculated into macrobead to precipitate, simultaneously, in reaction process, the ferric ion of bodied ferric sulfate and ferrous ion can keep running balance, ensure that in ferrous ion and waste water, sulfonium ion fully reacts, bodied ferric sulfate and ferrous sulfate two kinds of materials used in combination, the effect removing sulfonium ion in waste water can be improved.Compared with the method for sulfonium ion in existing removal waste water, method of the present invention has that technique is simple, cost is low, effective, therefore, it is possible to for the removal of sulfonium ion in trade effluent, sanitary sewage.
(4) embodiment:
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment one
In beaker, bodied ferric sulfate and ferrous sulfate mixture being joined concentration is in the waste water of 100mg/L sulfur-containing anion, and iron vitriol add-on is 870mg/L, and bodied ferric sulfate add-on is 435mg/L, then aerated reaction 5 hours, and aeration rate is for being 50m
3/ minm
3, precipitate after 2 hours, in primary water, the sulfonium ion of 99% is removed.
Embodiment two
In beaker, bodied ferric sulfate and ferrous sulfate mixture are joined concentration is in 50mg/L sulfur-containing anion waste water, and iron vitriol add-on is 650mg/L, and bodied ferric sulfate add-on is 1000mg/L, then aerated reaction 3 hours, and aeration rate is for being 30m
3/ minm
3, precipitate after 1.5 hours, in primary water, the sulfonium ion of 95% is removed.
Embodiment three
In beaker, bodied ferric sulfate and ferrous sulfate mixture are joined concentration is in 10mg/L sulfur-containing anion waste water, and iron vitriol add-on is 200mg/L, and bodied ferric sulfate add-on is 400mg/L, then aerated reaction 2 hours, and aeration rate is for being 10m
3/ minm
3, precipitate after 1 hour, in primary water, the sulfonium ion of 90% is removed.
Embodiment four
In beaker, bodied ferric sulfate and ferrous sulfate mixture are joined concentration is in 1mg/L sulfur-containing anion waste water, and the ferrous add-on of seven water acid is 26mg/L, and bodied ferric sulfate add-on is 130mg/L, then aerated reaction 1 hour, and aeration rate is for being 1m
3/ minm
3, precipitate after 0.5 hour, in primary water, the sulfonium ion of 80% is removed.
Claims (3)
1. an aeration coagulation removes the method for sulfonium ion in waste water, bodied ferric sulfate and ferrous sulfate mixture are joined in sulfur-containing anion waste water, in waste water, the mol ratio of sulfonium ion and ferrous sulfate is 1: 1-1: 3, the mass ratio of ferrous sulfate and bodied ferric sulfate is 1: 0.5-1: 5, then aerated reaction 1-5 hour, precipitate after 0.5-2 hour, in primary water, most of sulfonium ion is removed.
2. a kind of aeration coagulation according to claim 1 removes the method for sulfonium ion in waste water, and wherein in waste water, the concentration of sulfonium ion is 1-100mg/L.
3. a kind of aeration coagulation according to claim 1 removes the method for sulfonium ion in waste water, and wherein aeration rate is for being 1-50m
3/ minm
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375592.XA CN105016443A (en) | 2015-06-24 | 2015-06-24 | Method for removal of sulfur ions from wastewater by aeration coagulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375592.XA CN105016443A (en) | 2015-06-24 | 2015-06-24 | Method for removal of sulfur ions from wastewater by aeration coagulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105016443A true CN105016443A (en) | 2015-11-04 |
Family
ID=54406822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510375592.XA Pending CN105016443A (en) | 2015-06-24 | 2015-06-24 | Method for removal of sulfur ions from wastewater by aeration coagulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105016443A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863097A (en) * | 2012-09-14 | 2013-01-09 | 濮阳市天地人环保工程技术有限公司 | Standardized treatment reinjection method of sulfur-containing waste liquid of high sulfur-containing oil and gas field |
| CN103611405A (en) * | 2013-12-04 | 2014-03-05 | 天津工业大学 | Method for simultaneously preparing polyferric flocculant and desulfurizing flue gas |
-
2015
- 2015-06-24 CN CN201510375592.XA patent/CN105016443A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863097A (en) * | 2012-09-14 | 2013-01-09 | 濮阳市天地人环保工程技术有限公司 | Standardized treatment reinjection method of sulfur-containing waste liquid of high sulfur-containing oil and gas field |
| CN103611405A (en) * | 2013-12-04 | 2014-03-05 | 天津工业大学 | Method for simultaneously preparing polyferric flocculant and desulfurizing flue gas |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151104 |