CN102786126A - Treating agent of coking wastewater - Google Patents
Treating agent of coking wastewater Download PDFInfo
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- CN102786126A CN102786126A CN2012102337699A CN201210233769A CN102786126A CN 102786126 A CN102786126 A CN 102786126A CN 2012102337699 A CN2012102337699 A CN 2012102337699A CN 201210233769 A CN201210233769 A CN 201210233769A CN 102786126 A CN102786126 A CN 102786126A
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- agent
- water
- coking wastewater
- ferric sulfate
- coking
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Abstract
A treating agent of coking wastewater relates to a chemical agent of water processing, and aims to solve problems of relatively low total cyanogen removal rate of organic pollutants and relatively high cost of raw materials by using existing treating agents of coking wastewater to treat the wastewater. The agent is composed of polymeric ferric sulfate, aluminum sulfate, ferric chloride, and a water treating additive, and the polymeric ferric sulfate, the aluminum sulfate, the ferric chloride, and the water treating additive is in a weight part ratio of (28-32) : (62-68): (4-6): (0.4-0.6). The agent is used for purifying treatment of the coking wastewater.
Description
Technical field
The present invention relates to a kind of chemical agent of water treatment, be specifically related to a kind of treatment agent that is used to purify coking chemical waste water.
Background technology
Coking chemical waste water is mainly from coke-oven plant and producer gas plant, and pollutent is formed complicated, contains volatile phenol, many heterogeneous ring compounds such as biological degradation aromatic series organism, polynuclear compound and oxygen sulphur nitrogen that are difficult to; Ammonia, phenol, sulfide that high density is arranged in the coking water, its main waste water is wastewater containing phenol and cyanide, coking water is a kind of more unmanageable trade effluent of high COD value, high phenol value; This waste water directly enters water body as not handling, and can make biotoxication even death, makes crop production reduction or withered; Can cause chronic poisoning after the people drinks, harm is big, at present; The processing of coking chemical waste water adopts single medicament of planting as adding bodied ferric sulfate or Tai-Ace S 150 or iron trichloride; Remove phenol cyanogen composition organic pollutant in the waste water, it is lower to remove efficient, and material cost is higher.
Summary of the invention
The objective of the invention is to adopt existing coking wastewater treatment agent processing waste water to have the lower and material cost problem of higher of the total cyanogen clearance of organic pollutants, and then a kind of coking wastewater treatment agent is provided for solving.
The present invention addresses the above problem the technical scheme of taking to be: a kind of coking wastewater treatment agent of the present invention is made up of bodied ferric sulfate, Tai-Ace S 150, iron trichloride and water treatment auxiliary agent, and above-mentioned component bodied ferric sulfate, Tai-Ace S 150, iron trichloride, water treatment auxiliary agent are (28～32) by ratio of weight and the number of copies: (62～68): (4～6): (0.4～0.6).
The invention has the beneficial effects as follows: one, present, coking chemical waste water gets into first reactive tank after biochemical treatment; Add sulfuric acid and ferrous sulfate simultaneously, in the stirrer whipping process, prussiate in the waste water and ferrous sulfate prussiate will add iron trichloride when flowing out first reactive tank; Get into second reactive tank and will add aqua calcis; And adjustment pH value, feed pressurized air simultaneously, stir; And used bodied ferric sulfate, Tai-Ace S 150, iron trichloride and water treatment auxiliary agent produces synergy through hydrolysis among the present invention; Processing to coking water has special efficacy; In Treatment of Coking Effluent, only add treatment agent of the present invention and after stirring, flow into settling tank, compare single the kind and deal with agent with bodied ferric sulfate, iron trichloride and can practice thrift running cost and chemical agent cost greatly, also saved adding of aqua calcis; Saved a plurality of operations, material cost obviously reduces.
Adopting treatment agent of the present invention to purify coking chemical waste water can make the total cyanogen clearance in the organic pollutant reach more than 70%; Coking water treatment stage water cost reduces more than 1.3 yuan/ton; Adopt the coking water after treatment agent of the present invention purifies, reach one type of sewage drainage standard of country.
Two, the bodied ferric sulfate of using in the treatment agent of the present invention (be called for short solid and gather iron or SPFS) is an inorganic polymer flocculant, and molecular formula is [Fe
2(OH)
n(SO4)
3-n/2]
m, product is the viscous fluid of sorrel or dark red brown during for liquid, product is faint yellow or grayish arborescens particle during for solid, can produce multiple high price or multinuclear complexing ion after the bodied ferric sulfate hydrolysis, like [Fe
2(OH)
4]
2+, [Fe
3(OH)
6]
3+[Fe
8(OH)
20]
4+Deng, the colloidal solid that suspends in the water is electrically neutralized, reduce current potential, impel the mutual coagulation of ion phase, and produce absorption, the effect such as crosslinked of building bridge, impel suspended particles that cohesion and deposition take place, reach the purpose of purifying waste water.Bodied ferric sulfate is a kind of intermediate product of ferric sulfate in hydrolysis, flocculation process, in the preparation process, makes Fe
3+Hydrolysis, polyreaction taking place, make in the liquid exclusive ferric sulfate and contain a large amount of polymerizing cationicallies, can bring into play charge neutralization flocculation bridging action rapidly.Bodied ferric sulfate has good cohesion performance, and the flco sedimentation speed is fast, and the ability of stronger removal water mesophytization oxygen demand BOD, chemical oxygen demand COD and heavy metal is arranged, and can reduce the content of nitrite nitrogen and iron.
Three, the Tai-Ace S 150 used of the present invention (being called for short AS) is white glossy crystallization, particle or powder; Calcium hydrogen carbonate in Tai-Ace S 150 and the water and Magnesium hydrogen carbonate interact; The white lake that generates has cohesion; Can catch the colloidal state impurity in the water and form flocks, help separated from contaminants to come out, water is purified.
Four, the iron trichloride (FC) used of the present invention is dark brown crystallization, or laminar, and iron trichloride is used for flocculation agent and precipitation agent, can be with heavy metal and sulfide precipitation, and the ironic hydroxide that forms in the coking chemical waste water has stronger adsorptive power to oil, and removal effect is good.
Five, the content of iron is about 4% among the present invention, and the content of aluminium is about 2%, and the content of iron and the content of aluminium all are lower than state sewage emission standard.
Embodiment
Embodiment one: a kind of coking wastewater treatment agent of this embodiment is made up of bodied ferric sulfate, Tai-Ace S 150, iron trichloride and water treatment auxiliary agent, and above-mentioned component bodied ferric sulfate, Tai-Ace S 150, iron trichloride, water treatment auxiliary agent are (28～32) by ratio of weight and the number of copies: (62～68): (4～6): (0.4～0.6).
When the treatment agent of this embodiment uses, add the liquid treating agent that water is mixed with needs tonnage, add and get final product;
Embodiment two: the said component bodied ferric sulfate of this embodiment, Tai-Ace S 150, iron trichloride, water treatment auxiliary agent are 30:65:5:0.5 by ratio of weight and the number of copies.
Embodiment three: the said water treatment auxiliary agent of this embodiment is a guar gum.The guar gum that this embodiment adopts is by joining sugared bonded Polygalactan; The macromolecule hydrolysis colloid polysaccharide of promptly forming by Polygalactan and seminose (1:2); Molecular weight is about 20-30 ten thousand; Guar gum be white to the light tan free flowing powder, can be dissolved in fully in the hot water of cold water river, its aqueous solution is tasteless, do not have smell, nontoxic, be neutral.Because contain a spot of fiber and Mierocrystalline cellulose in the solution, therefore, it is translucent to be light gray.Aqueous guar glue solution has high viscosity, and its viscosity size and particle size, pH value are relevant with temperature, a kind of glue that the natural gum medium viscosity is the highest; Its thickening properties is than the high 4-7 of starch times, and the melon sol solution is stable in pH is the 4.0-10.5 scope, is that 8.0 o'clock hydrations are very fast at pH; In wastewater treatment; Use guar gum extremely verivate can the suspended particulates in the liquid be assembled to connect forming thick cotton-shaped or agglomerate as flocculation agent (can make dispersive fine-grained solids in the liquid form the high molecular polymer of throw out), help separated from contaminants and come out or be converted into harmless object; And then coking chemical waste water is purified, satisfy actual needs.Other is identical with embodiment one or two.
Embodiment: the coking wastewater treatment agent of present embodiment is made up of bodied ferric sulfate, Tai-Ace S 150, iron trichloride and water treatment auxiliary agent; The weight of above-mentioned component bodied ferric sulfate, Tai-Ace S 150, iron trichloride and water treatment auxiliary agent is respectively 300 kilograms; 650 kilograms, 50 kilograms and 5 kilograms, when the treatment agent of present embodiment is handled as purification of waste water, add the liquid treating agent that water is mixed with 6 tons; Add and also after stirring, flow into settling tank, get final product.
Claims (3)
1. coking wastewater treatment agent; It is characterized in that: said treatment agent is made up of bodied ferric sulfate, Tai-Ace S 150, iron trichloride and water treatment auxiliary agent, and above-mentioned component bodied ferric sulfate, Tai-Ace S 150, iron trichloride, water treatment auxiliary agent are (28～32) by ratio of weight and the number of copies: (62～68): (4～6): (0.4～0.6).
2. a kind of coking wastewater treatment agent according to claim 1 is characterized in that: said component bodied ferric sulfate, Tai-Ace S 150, iron trichloride, water treatment auxiliary agent are 30:65:5:0.5 by ratio of weight and the number of copies.
3. a kind of coking wastewater treatment agent according to claim 1 and 2 is characterized in that: said water treatment auxiliary agent is a guar gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102337699A CN102786126A (en) | 2012-07-06 | 2012-07-06 | Treating agent of coking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102337699A CN102786126A (en) | 2012-07-06 | 2012-07-06 | Treating agent of coking wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102786126A true CN102786126A (en) | 2012-11-21 |
Family
ID=47151740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102337699A Pending CN102786126A (en) | 2012-07-06 | 2012-07-06 | Treating agent of coking wastewater |
Country Status (1)
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| CN (1) | CN102786126A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366788A (en) * | 2015-10-30 | 2016-03-02 | 朱忠良 | Water purification agent composition and application thereof |
| CN106315795A (en) * | 2015-07-06 | 2017-01-11 | 迪建东 | Inorganic flocculating agent for coking waste water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113065A (en) * | 2007-06-27 | 2008-01-30 | 同济大学 | Impact-resistant multiplication combined type coking waste water treatment process |
| CN101519238A (en) * | 2008-11-21 | 2009-09-02 | 兰州理工大学 | Method for preparing flocculating agent for water treatment |
| KR100957851B1 (en) * | 2007-12-17 | 2010-05-14 | 염복철 | Method of water treatment |
| CN102198407A (en) * | 2010-03-24 | 2011-09-28 | 索尼公司 | Positive ion exchanger and method for removing heavy metal ion in waste water |
| CN102515335A (en) * | 2011-12-23 | 2012-06-27 | 北京矿冶研究总院 | System and method for quickly breaking plant glue solution |
-
2012
- 2012-07-06 CN CN2012102337699A patent/CN102786126A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113065A (en) * | 2007-06-27 | 2008-01-30 | 同济大学 | Impact-resistant multiplication combined type coking waste water treatment process |
| KR100957851B1 (en) * | 2007-12-17 | 2010-05-14 | 염복철 | Method of water treatment |
| CN101519238A (en) * | 2008-11-21 | 2009-09-02 | 兰州理工大学 | Method for preparing flocculating agent for water treatment |
| CN102198407A (en) * | 2010-03-24 | 2011-09-28 | 索尼公司 | Positive ion exchanger and method for removing heavy metal ion in waste water |
| CN102515335A (en) * | 2011-12-23 | 2012-06-27 | 北京矿冶研究总院 | System and method for quickly breaking plant glue solution |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315795A (en) * | 2015-07-06 | 2017-01-11 | 迪建东 | Inorganic flocculating agent for coking waste water |
| CN105366788A (en) * | 2015-10-30 | 2016-03-02 | 朱忠良 | Water purification agent composition and application thereof |
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Application publication date: 20121121 |