CN105036285A - Aniline sewage decolorization treatment agent, and preparation method and application method thereof - Google Patents
Aniline sewage decolorization treatment agent, and preparation method and application method thereof Download PDFInfo
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Abstract
The invention discloses an aniline sewage decolorization treatment agent, and a preparation method and application method thereof. The aniline sewage decolorization treatment agent comprises a reducer, a decolorant and a synergist in a weight ratio of 1:(0.67-1.5):(0.67-1.5). The reducer is composed of the following components in percentage by weight: 5-10% of aluminum potassium sulfate, 5-10% of magnesium sulfate, 13-18% of polyaluminum chloride and 67-73% of water. The decolorant is composed of the following components in percentage by weight: 5-10% of epoxyethane, 5-10% of triethanolamine, 20-25% of powder activated carbon and 60-65% of water. The synergist is composed of the following components in percentage by weight: 0.1-0.2% of polyacrylamide, 5-10% of aluminum amine sulfate and 89.9-94.8% of water. By matching the components of the reducer, decolorant and synergist, the aniline sewage treatment agent has unique removal effects on high chroma, aniline and COD (chemical oxygen demand) in aniline sewage; and the chroma, COD, suspended substance and aniline contents in the treated wastewater are obviously and greatly reduced.
Description
Technical field
The invention belongs to technical field of sewage, be specifically related to a kind of aniline sewage decolorizing treatment agent and preparation method thereof and using method.
Background technology
Aniline sewage is the high chroma of petrochemical industry generation, the alkaline sewage of high organic content, and the biodegradability of this water water quality is poor, and colourity is high, is a kind of typical difficult for biological degradation chemical industrial organic wastewater.If this sewage is directly discharged severe contamination water source, if be directly discharged into sewage work, sewage qualified discharge rate will be had a strong impact on.
At present, the treatment process of aniline sewage mainly contains biologic treating technique, absorption except look technology, hypochlorite oxidation technology, high-level oxidation technology etc., but these methods have its limitation.Absorption method is modal physical treatment method, there is equipment simple, easy and simple to handle, the advantages such as technical maturity, pollutent is transferred to solid phase or gas phase from liquid phase by adsorption technology usually, do not eliminate organic pollutant completely, easily cause secondary pollution, and the process of the regeneration of sorbent material and regeneration waste liquid is also a difficult problem sometimes.Biological treatment has been widely used in the process of trade effluent, because of its equipment with operational management is simple, working cost is low, do not have the advantages such as secondary pollution and enjoy favor, but the feature of the biodegradability difference of aniline sewage, makes biological treatment effect not obvious, produce colority of water without considerable change.Use hypochlorite oxidation technology, strong acid, highly basic adjust ph must be used to reach optimum reaction condition, strong acid and highly basic, to equipment installation seriously corroded, affect larger on site environment, personnel health.The field that current Research of Environmental Sciences comparatively enlivens is high-level oxidation technology, and its mechanism is the strong oxidizing property free radical produced in aqueous based on hydroxyl radical free radical, fast decoupled Persistent organic pollutants, removes COD and TOC, reduces colourity.Conventional has Ozonation, supercritical Water Oxidation Technology, electrochemical reducing, Fenton reagent method etc.Ozonation speed of reaction is fast, clearance is high, but consumes power is large, and processing cost is high, ozone poorly water-soluble and itself has toxicity, easily works the mischief to operator.Although supercritical Water Oxidation Technology can toxic organics in removal water rapidly and efficiently, this method is high-pressure reactor seriously corroded in use, limits its industrial application.
Summary of the invention
The object of the invention is to solve the technical problem existed in prior art, a kind of aniline sewage decolorizing treatment agent high chroma, aniline and COD in aniline sewage being had to unique removal effect is provided.
Another object of the present invention is preparation method and using method in order to provide a kind of aniline sewage decolorizing treatment agent.
In order to achieve the above object, the present invention is by the following technical solutions:
A kind of aniline sewage decolorizing treatment agent, comprises reductive agent, discoloring agent and synergistic agent, and weight ratio when described reductive agent, discoloring agent and synergistic agent use is 1:0.67-1.5:0.67-1.5;
Wherein, described reductive agent is made up of the component of following weight percent: potassium aluminium sulfate 5%-10%, magnesium sulfate 5%-10%, polymerize aluminum chloride 13%-18%, water 67%-73%;
Described discoloring agent is made up of the component of following weight percent: oxyethane 5%-10%, trolamine 5%-10%, Powdered Activated Carbon 20%-25%, water 60%-65%;
Described synergistic agent is made up of the component of following weight percent: polyacrylamide 0.1%-0.2%, Exsiccated Ammonium Alum 5%-10%, water 89.9%-94.8%.
Prepare a method for aniline sewage decolorizing treatment agent according to claim 1, the method comprises the following steps:
A, prepare reductive agent: in reactor, add water, add potassium aluminium sulfate in proportion while stirring, after being slowly warming up to 45 DEG C, stir at least 30 minutes; Magnesium sulfate, polymerize aluminum chloride is slowly added in proportion while stirring in above-mentioned solution; Above-mentioned solution is heated to 45-60 DEG C at least stir after 1.5 hours and be cooled to normal temperature; Finished product range estimation is weak yellow liquid, pH value 4.6-4.7.
B, prepare discoloring agent: in reactor, add water, add oxyethane and trolamine post-heating while stirring in proportion to 70-85 DEG C, at least stir after 2 hours and be cooled to normal temperature; In above-mentioned solution, add Powdered Activated Carbon while stirring in proportion and fully mixing, at least stir after 1 hour and be cooled to normal temperature; Finished product range estimation is black liquor, pH value 7.2-7.7.
C, prepare synergistic agent: in reactor, add water, add polyacrylamide in proportion while stirring, stir at least 30 minutes; In above-mentioned solution, slowly add exsiccated ammonium alum while stirring in proportion and at least stir 1.5 hours, mixing speed controls at below 30rpm; Finished product range estimation is colourless transparent liquid, pH value 6.8-7.3.
Use a method for the aniline sewage decolorizing treatment agent described in claim 1, the method comprises the following steps: the front end to aniline sewage line mixer adds reductive agent; Be greater than 10 seconds in the guarantee reductive agent residence time and in well-mixed situation, in the solution that previous step obtains, add discoloring agent; Be greater than 20 seconds in the guarantee discoloring agent residence time and in well-mixed situation, in the solution that previous step obtains, add synergistic agent, the residence time is greater than 5min and fully mixing; Solution left standstill layering previous step obtained, upper strata is clear liquid, and lower floor is solid flocculating settling thing.
Hinge structure of the present invention has following beneficial effect: aniline sewage treatment agent of the present invention has unique removal effect by cooperatively interacting between each component of reductive agent, discoloring agent and synergistic agent to high chroma, aniline and COD in aniline sewage, and after removing, chroma in waste water, COD, suspended substance, aniline content obviously significantly reduce.Aniline sewage treatment agent non-flammable of the present invention is explosive, and non-strong acid and strong base is non-volatile, nontoxic, use safety.Simultaneously, the using method of aniline sewage treatment agent provided by the invention is reliable and stable, be convenient to management, after source process is carried out to aniline sewage, solve the impact to terminal sewage farm, ensure that the steady running in sewage farm and the qualified discharge of waste water, slightly transformation is carried out to original equipment and just can process aniline sewage, reduce processing cost.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
A kind of aniline sewage decolorizing treatment agent, comprises reductive agent, discoloring agent and synergistic agent, and weight ratio when reductive agent, discoloring agent and synergistic agent use is 1:0.67-1.5:0.67-1.5; Wherein, reductive agent is made up of the component of following weight percent: potassium aluminium sulfate 5%-10%, magnesium sulfate 5%-10%, polymerize aluminum chloride 13%-18%, water 67%-73%; Discoloring agent is made up of the component of following weight percent: oxyethane 5%-10%, trolamine 5%-10%, Powdered Activated Carbon 20%-25%, water 60%-65%; Synergistic agent is made up of the component of following weight percent: polyacrylamide 0.1%-0.2%, Exsiccated Ammonium Alum 5%-10%, water 89.9%-94.8%.
Concrete preparation method is as follows for reductive agent:
Reductive agent component proportion as shown in Table 1.
Table one: reductive agent component proportion table (unit: gram)
Embodiment 1 prepared by reductive agent: to fill a prescription data in 1 by table one, add 67 grams of water, drop into 5 grams of potassium aluminium sulfates while stirring, stir at least 30 minutes after being slowly warming up to 45 DEG C in reactor; 10 grams of magnesium sulfate, 18 grams of polymerize aluminum chlorides are slowly added while stirring in above-mentioned solution; Above-mentioned solution is heated to 45 DEG C, at least stirs after 1.5 hours and be cooled to normal temperature.Finished product range estimation is weak yellow liquid, pH value 4.7.
Embodiment 2 prepared by reductive agent: to fill a prescription data in 2 by table one, add 73 grams of water, drop into 6 grams of potassium aluminium sulfates while stirring, stir at least 30 minutes after being slowly warming up to 45 DEG C in reactor; 8 grams of magnesium sulfate, 13 grams of polymerize aluminum chlorides are slowly added while stirring in above-mentioned solution; Above-mentioned solution is heated to 60 DEG C, at least stirs after 1.5 hours and be cooled to normal temperature.Finished product range estimation is weak yellow liquid, pH value 4.6.
Embodiment 3 prepared by reductive agent: to fill a prescription data in 3 by table one, add 72 grams of water, drop into 7 grams of potassium aluminium sulfates while stirring, stir at least 30 minutes after being slowly warming up to 45 DEG C in reactor; 8 grams of magnesium sulfate, 13 grams of polymerize aluminum chlorides are slowly added while stirring in above-mentioned solution; Above-mentioned solution is heated to 50 DEG C, at least stirs after 1.5 hours and be cooled to normal temperature.Finished product range estimation is weak yellow liquid, pH value 4.6.
Embodiment 4 prepared by reductive agent: to fill a prescription data in 4 by table one, add 71 grams of water, drop into 8 grams of potassium aluminium sulfates while stirring, stir at least 30 minutes after being slowly warming up to 45 DEG C in reactor; 6 grams of magnesium sulfate, 15 grams of polymerize aluminum chlorides are slowly added while stirring in above-mentioned solution; Above-mentioned solution is heated to 55 DEG C, at least stirs after 1.5 hours and be cooled to normal temperature.Finished product range estimation is weak yellow liquid, pH value 4.7.
Embodiment 5 prepared by reductive agent: to fill a prescription data in 5 by table one, add 69 grams of water, drop into 9 grams of potassium aluminium sulfates while stirring, stir at least 30 minutes after being slowly warming up to 45 DEG C in reactor; 7 grams of magnesium sulfate, 15 grams of polymerize aluminum chlorides are slowly added while stirring in above-mentioned solution; Above-mentioned solution is heated to 45 DEG C, at least stirs after 1.5 hours and be cooled to normal temperature.Finished product range estimation is weak yellow liquid, pH value 4.6.
Embodiment 6 prepared by reductive agent: to fill a prescription data in 6 by table one, add 72 grams of water, drop into 10 grams of potassium aluminium sulfates while stirring, stir at least 30 minutes after being slowly warming up to 45 DEG C in reactor; 5 grams of magnesium sulfate, 13 grams of polymerize aluminum chlorides are slowly added while stirring in above-mentioned solution; Above-mentioned solution is heated to 60 DEG C, at least stirs after 1.5 hours and be cooled to normal temperature.Finished product range estimation is weak yellow liquid, pH value 4.6.
Concrete preparation method is as follows for discoloring agent:
Discoloring agent component proportion as shown in Table 2.
Table two: discoloring agent component proportion table (unit: gram)
Embodiment 1 prepared by discoloring agent: to fill a prescription data in 1 by table two, in reactor, add 60 grams of water, drop into 5 grams of oxyethane and 10 grams of trolamine post-heating to 70 DEG C while stirring, Keep agitation was cooled to normal temperature after at least 2 hours; In above-mentioned solution, add 25 grams of Powdered Activated Carbons and fully mix, at least stirring after 1 hour and be cooled to normal temperature; Finished product range estimation is black liquor, pH value 7.7.
Embodiment 2 prepared by discoloring agent: to fill a prescription data in 2 by table two, in reactor, add 62 grams of water, drop into 6 grams of oxyethane and 9 grams of trolamine post-heating to 80 DEG C while stirring, Keep agitation was cooled to normal temperature after at least 2 hours; In above-mentioned solution, add 23 grams of Powdered Activated Carbons and fully mix, at least stirring after 1 hour and be cooled to normal temperature; Finished product range estimation is black liquor, pH value 7.7.
Embodiment 3 prepared by discoloring agent: to fill a prescription data in 3 by table two, in reactor, add 61 grams of water, drop into 7 grams of oxyethane and 8 grams of trolamine post-heating to 85 DEG C while stirring, Keep agitation was cooled to normal temperature after at least 2 hours; In above-mentioned solution, add 24 grams of Powdered Activated Carbons and fully mix, at least stirring after 1 hour and be cooled to normal temperature; Finished product range estimation is black liquor, pH value 7.6.
Embodiment 4 prepared by discoloring agent: to fill a prescription data in 4 by table two, in reactor, add 65 grams of water, drop into 8 grams of oxyethane and 7 grams of trolamine post-heating to 70 DEG C while stirring, Keep agitation was cooled to normal temperature after at least 2 hours; In above-mentioned solution, add 20 grams of Powdered Activated Carbons and fully mix, at least stirring after 1 hour and be cooled to normal temperature; Finished product range estimation is black liquor, pH value 7.5.
Embodiment 5 prepared by discoloring agent: to fill a prescription data in 5 by table two, in reactor, add 62 grams of water, drop into 9 grams of oxyethane and 6 grams of trolamine post-heating to 80 DEG C while stirring, Keep agitation was cooled to normal temperature after at least 2 hours; In above-mentioned solution, add 23 grams of Powdered Activated Carbons and fully mix, at least stirring after 1 hour and be cooled to normal temperature; Finished product range estimation is black liquor, pH value 7.5.
Embodiment 6 prepared by discoloring agent: to fill a prescription data in 6 by table two, in reactor, add 60 grams of water, drop into 10 grams of oxyethane and 5 grams of trolamine post-heating to 80 DEG C while stirring, Keep agitation was cooled to normal temperature after at least 2 hours; In above-mentioned solution, add 25 grams of Powdered Activated Carbons and fully mix, at least stirring after 1 hour and be cooled to normal temperature; Finished product range estimation is black liquor, pH value 7.2.
Concrete preparation method is as follows for synergistic agent:
Boosting components proportioning as shown in Table 3.
Table three: boosting components proportioning table (unit: gram)
Embodiment 1 prepared by synergistic agent: to fill a prescription data in 1 by table three, add 89.90 grams of water, drop into 0.10 gram of polyacrylamide while stirring, stir at least 30 minutes in reactor; In above-mentioned solution, slowly add 10 grams of exsiccated ammonium alums while stirring and at least start to stir 1.5 hours, mixing speed controls at below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 6.9.
Embodiment 2 prepared by synergistic agent: to fill a prescription data in 2 by table three, add 90.90 grams of water, drop into 0.10 gram of polyacrylamide while stirring, stir at least 30 minutes in reactor; In above-mentioned solution, slowly add 9 grams of exsiccated ammonium alums while stirring and at least start to stir 1.5 hours, mixing speed controls at below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 6.8.
Embodiment 3 prepared by synergistic agent: to fill a prescription data in 3 by table three, add 91.85 grams of water, drop into 0.15 gram of polyacrylamide while stirring, stir at least 30 minutes in reactor; In above-mentioned solution, slowly add 8 grams of exsiccated ammonium alums while stirring and at least start to stir 1.5 hours, mixing speed controls at below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.0.
Embodiment 4 prepared by synergistic agent: to fill a prescription data in 4 by table three, add 92.85 grams of water, drop into 0.15 gram of polyacrylamide while stirring, stir at least 30 minutes in reactor; In above-mentioned solution, slowly add 7 grams of exsiccated ammonium alums while stirring and at least start to stir 1.5 hours, mixing speed controls at below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.2.
Embodiment 5 prepared by synergistic agent: to fill a prescription data in 5 by table three, add 93.80 grams of water, drop into 0.20 gram of polyacrylamide while stirring, stir at least 30 minutes in reactor; In above-mentioned solution, slowly add 6 grams of exsiccated ammonium alums while stirring and at least start to stir 1.5 hours, mixing speed controls at below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.3.
Embodiment 6 prepared by synergistic agent: to fill a prescription data in 6 by table three, add 94.80 grams of water, drop into 0.20 gram of polyacrylamide while stirring, stir at least 30 minutes in reactor; In above-mentioned solution, slowly add 5 grams of exsiccated ammonium alums while stirring and at least start to stir 1.5 hours, mixing speed controls at below 30rpm.Finished product range estimation is colourless transparent liquid, pH value 7.2.
Aniline sewage decolorizing treatment agent using method: the front end to aniline sewage line mixer adds reductive agent; Be greater than 10 seconds in the guarantee reductive agent residence time and in well-mixed situation, in the solution that previous step obtains, add discoloring agent; Be greater than 20 seconds in the guarantee discoloring agent residence time and in well-mixed situation, in the solution that previous step obtains, add synergistic agent, the residence time is greater than 5min and fully mixing; Solution left standstill layering previous step obtained, upper strata is clear liquid, and lower floor is solid flocculating settling thing.Weight ratio when reductive agent, discoloring agent and synergistic agent use during use is 1:0.67-1.5:0.67-1.5.
When reductive agent, discoloring agent and synergistic agent use, add-on is tested the impact for the treatment of effect:
Get certain organic factory aniline sewage 1000mL in beaker, appropriate reductive agent, discoloring agent, synergistic agent is added successively in aniline sewage according to above-mentioned aniline sewage decolorizing treatment agent using method, observe chroma in waste water and suspended substance lowering speed, test as shown in Table 4.
Table four: when reductive agent, discoloring agent and synergistic agent use, add-on is on the impact for the treatment of effect
Test-results:
(1) aniline sewage selects reductive agent, discoloring agent and synergistic agent process aniline sewage successful, in 10 seconds in sewage suspended substance fast under be sunken to beaker bottom, Colority of Sewage Water reduces.Place the colourless or light yellow clear liquid of supernatant liquor after 20 minutes, the supernatant liquor in beaker and sediment line of delimitation, bottom very clear.
(2) by considering: the optimum add-on of aniline sewage of process 1000mL is reductive agent 5.0mL, discoloring agent 5.0mL, synergistic agent 5.0mL.
Aniline sewage decolorizing treatment agent removal effect is tested:
Choose that the obtained reductive agent of embodiment 3 prepared by reductive agent, the obtained discoloring agent of embodiment 3 prepared by discoloring agent, the medicament of the obtained synergistic agent of embodiment 3 as following test prepared by synergistic agent, commerical test in continuous 7 days is carried out to aniline sewage, and get top waste clear solution detection pH, colourity, aniline content, COD content, and measure the extrusion rate of colourity in aniline sewage, aniline, COD.Test-results as shown in Table 5.
Table five: the test-results of aniline sewage being carried out to test in continuous 7 days
In the middle of above testing data, decreasing ratio draws as follows:
Test-results: the aniline sewage decolorizing treatment agent for aniline sewage solves the phenomenon that in aniline sewage high chroma, water, aniline, COD exceed standard under reductive agent, discoloring agent, the common mating reaction of synergistic agent, in aniline sewage, the average decreasing ratio of colourity reaches 99%, the average extrusion rate 78.6% of the average extrusion rate 88.7%, COD of aniline.
Above-described is only the preferred embodiments of the present invention; should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the present invention, as the common practise of chemical field; other equivalent modifications and improvement can also be made, also should be considered as protection scope of the present invention.
Claims (3)
1. an aniline sewage decolorizing treatment agent, is characterized in that: comprise reductive agent, discoloring agent and synergistic agent, and weight ratio when described reductive agent, discoloring agent and synergistic agent use is 1:0.67-1.5:0.67-1.5;
Wherein, described reductive agent is made up of the component of following weight percent: potassium aluminium sulfate 5%-10%, magnesium sulfate 5%-10%, polymerize aluminum chloride 13%-18%, water 67%-73%;
Described discoloring agent is made up of the component of following weight percent: oxyethane 5%-10%, trolamine 5%-10%, Powdered Activated Carbon 20%-25%, water 60%-65%;
Described synergistic agent is made up of the component of following weight percent: polyacrylamide 0.1%-0.2%, Exsiccated Ammonium Alum 5%-10%, water 89.9%-94.8%.
2. prepare a method for aniline sewage decolorizing treatment agent according to claim 1, it is characterized in that the method comprises the following steps:
A, prepare reductive agent:
I adds water in reactor, adds potassium aluminium sulfate in proportion while stirring, stirs at least 30 minutes after being slowly warming up to 45 DEG C;
II slowly adds magnesium sulfate, polymerize aluminum chloride in proportion while stirring in above-mentioned solution;
Above-mentioned solution is heated to 45-60 DEG C and at least stirs after 1.5 hours and be cooled to normal temperature by III;
B, prepare discoloring agent:
I adds water in reactor, adds oxyethane and trolamine post-heating while stirring in proportion to 70-85 DEG C, at least stirs after 2 hours and is cooled to normal temperature;
II adds Powdered Activated Carbon while stirring in proportion and fully mixing in above-mentioned solution, at least stirs after 1 hour and is cooled to normal temperature;
C, prepare synergistic agent:
I adds water in reactor, adds polyacrylamide in proportion while stirring, stirs at least 30 minutes;
II slowly adds exsiccated ammonium alum while stirring in proportion and at least stirs 1.5 hours in above-mentioned solution, and mixing speed controls at below 30rpm.
3. use a method for the aniline sewage decolorizing treatment agent described in claim 1, it is characterized in that the method comprises the following steps:
I adds reductive agent to the front end of aniline sewage line mixer;
II is greater than 10 seconds in the guarantee reductive agent residence time and in well-mixed situation, in the solution that previous step obtains, adds discoloring agent;
III is greater than 20 seconds in the guarantee discoloring agent residence time and in well-mixed situation, in the solution that previous step obtains, adds synergistic agent, and the residence time is greater than 5min and fully mixing;
The solution left standstill layering that previous step obtains by IV, upper strata is clear liquid, and lower floor is solid flocculating settling thing.
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CN110498573A (en) * | 2019-09-06 | 2019-11-26 | 张洪响 | A kind of method suede nitre dye wastewater treatment and recycled |
CN110877923A (en) * | 2018-09-06 | 2020-03-13 | 中国石油天然气股份有限公司 | Composite flocculant for treating refinery sewage and treatment method of refinery sewage |
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