CN100467397C - Waste water treatment agent and its preparation method - Google Patents
Waste water treatment agent and its preparation method Download PDFInfo
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- CN100467397C CN100467397C CNB2006100204786A CN200610020478A CN100467397C CN 100467397 C CN100467397 C CN 100467397C CN B2006100204786 A CNB2006100204786 A CN B2006100204786A CN 200610020478 A CN200610020478 A CN 200610020478A CN 100467397 C CN100467397 C CN 100467397C
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- mud
- modified alta
- waste water
- silver
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A treating agent for removing the organic pollutants and suspended substances from sewage by flocculation and catalytic degradation is prepared through proportionally mixing bentone with fine carbon powder, calcining for modifying bentone, proportionally immersing it in the aqueous solution of al salt, reacting, calcining to obtain Al2O3, proportionally immersing it in the aqueous solution of Ag salt, baking and calcining.
Description
Technical field
The present invention relates to a kind of waste water conditioner and preparation method thereof.
Background technology
The water that becomes increasingly conspicuous pollutes and has destroyed ecotope, has endangered vegeto-animal existence, has influenced people's health, has restricted the development of industrial and agricultural production, has caused the extensive concern of the whole society.Development and use new efficient, low toxicity, inexpensive waste water conditioner has become one of key that solves water pollution problems, and its importance is conspicuous.All carry out a large amount of research both at home and abroad for this reason, proposed a series of new water conditioners and preparation method thereof.Chinese patent CN1046315 discloses " preparation method of wilkinite composite water purifying agent (type) ", CN1055528 discloses " composite and highly efficient agent for waste water treatment of drilling mud ", CN1081160 discloses " efficient planar water is handled ", CN1222603 discloses " method of dyeing sewage decoloration and purification and preparation thereof ", CN1257839 discloses " a kind of method for purifying water of oxidizing, flocculating solid-liquid separation ", CN1319564 discloses " a kind of natural compounding type water treatment agent; " CN1341568 discloses " modified lignin sulfonate multifunctional water treatment agent and preparation method thereof ", CN135627 discloses " a kind of preparation method of natural bentone material used to treat sewage ", CN1428301 discloses " a kind of water conditioner ", CN1535925 discloses " preparation of ferrate multifunctional water treating agent and depollution technology ", CN1539756 discloses " a kind of zinc of using; molybdenum; magnesium salts is done the method for water conditioner ", CN1559930 discloses " preparation of water conditioner and application thereof ", and CN156966 discloses " a kind of inorganic-organic composite bentonite waste water place preparation methods " or the like.These patented technologies respectively have its characteristics and application direction.But because complicacy and polytropy that water pollutes, existing water conditioner also can not satisfy the needs of environment protection far away.
Summary of the invention
The object of the present invention is to provide a kind of waste water conditioner and preparation method thereof, this treatment agent the pollutent in dyeing waste water, oil-gas field waste water and other organic polluting waters is had preferably adsorb, flocculation and catalyzed degradation effect, thereby produce tangible treatment effect, and its preparation method is simple, cost of water treatment is low, is easy to reclaim use again.
Utilization of the present invention adds the charcoal roasting method to bentonite modified, makes it have bigger porosity and surface-area, thereby strengthens its adsorptive power.By chemical reaction and high-temperature roasting, aluminium sesquioxide and argent particulate at modified alta-mud area load high absorbability high catalytic activity are prepared into a kind of waste water conditioner then.
A kind of waste water conditioner is made up of modified alta-mud, aluminium sesquioxide, silver, and the mass ratio of each component is:
Modified alta-mud 100
Aluminium sesquioxide 11~30
Silver 0.2~0.8
A kind of preparation method of waste water conditioner may further comprise the steps successively:
(1) press wilkinite: the quality of thin powdered carbon=100:3~7 is fully ground mixing than weighing with the two, and roasting is 2~3 hours in temperature is 550~600 ℃ retort furnace, modified alta-mud;
(2) press modified alta-mud: the mass ratio of aluminium=100:3~8, take by weighing above-mentioned modified alta-mud and aluminium salt, first compound concentration is 10%~30% aluminum saline solution, more above-mentioned modified alta-mud is poured into wherein, leaves standstill after shaking up 1~2 hour, under agitation drips NH
3H
2O, regulating the pH value is about 10,100 ℃ of oven dry down, is warming up to 400~500 ℃ of insulation roastings 1~2 hour more gradually;
(3) by modified alta-mud: the mass ratio of silver=100:0.2~0.8 takes by weighing silver salt, elder generation's compound concentration is 1%~2.5% silver salt solution, to go up the one-step baking product again immerses wherein, 90 ℃ of oven dry down, change over to then and be warming up to 450~500 ℃ in the retort furnace, be incubated 2 hours, make silver salt be converted into silver, promptly get a kind of waste water conditioner of the present invention.
Among the preparation method of waste water conditioner of the present invention, (1) step was pressed wilkinite: the quality of thin powdered carbon=100:3~7 is fully ground mixing than weighing with the two, and fine particle is made in water transfer, changed temperature after the oven dry over to and be in 550~600 ℃ the retort furnace roasting 2~3 hours, modified alta-mud; (2) step was pressed the mass ratio of modified alta-mud: aluminium=100:3~8, take by weighing modified alta-mud and aluminium salt (as Tai-Ace S 150, aluminum chloride etc.), elder generation's compound concentration is 10%~30% aluminum saline solution, again modified alta-mud is poured into wherein, shake up, left standstill 1~2 hour, and under agitation dripped NH then
3H
2O, regulating the pH value is about 10, make aluminium salt be converted into aluminium hydroxide, in 100 ℃ of oven dry down, be warming up to 400~500 ℃ of insulation roastings 1~2 hour more gradually, make aluminium hydroxide be converted into aluminium sesquioxide, the mass ratio of two components is modified alta-mud: aluminium sesquioxide=100:11~30 in the gained product of roasting; (3) step took by weighing silver salt (as Silver Nitrate etc.) by the mass ratio of modified alta-mud: silver=100:0.2~0.8, be mixed with concentration earlier and be 1%~2.5% silver salt solution, to go up the one-step baking product again immerses wherein, 90 ℃ of oven dry down, change over to then and be warming up to 450~500 ℃ in the retort furnace, be incubated 2 hours, make silver salt be converted into silver, promptly make a kind of waste water conditioner of the present invention, wherein the mass ratio of each component is a modified alta-mud: aluminium sesquioxide: silver=100:11~30:0.2~0.8.
A kind of waste water conditioner of the present invention can be used for the processing of dyeing waste water, oil-gas field waste water, sanitary sewage and other multiple organic polluting waters.
Compared with prior art, the present invention has the following advantages: (1) has good adsorption, flocculation and catalyzed degradation effect to the organic pollutant in the waste water, suspended substance; (2) the processing waster water process is simple, and consumption is few, and settling velocity is very fast, and effect is better; (3) cost of water treatment is low; (4) being easy to recovery uses again.
Embodiment
Specify the present invention according to embodiment below.
Embodiment 1
Prepare waste water conditioner of the present invention by following step:
(1) press wilkinite: the mass ratio of thin powdered carbon=100:4, take by weighing wilkinite and thin powdered carbon, the two is fully ground mixing, fine particle is made in water transfer, 100 ℃ of oven dry down, changes temperature over to and be in 550 ℃ the retort furnace roasting 2 hours, modified alta-mud;
(2) press modified alta-mud: the mass ratio of aluminium=100:6.6, take by weighing above-mentioned modified alta-mud and Tai-Ace S 150, be mixed with concentration and be 20% aluminum saline solution, above-mentioned modified alta-mud is poured into wherein, shake up, left standstill 2 hours, under agitation drip NH then
3H
2O, regulating the pH value is about 10, makes aluminium salt be converted into aluminium hydroxide, in 100 ℃ of oven dry down, be warming up to 450 ℃ of insulation roastings 1 hour more gradually, make aluminium hydroxide be converted into aluminium sesquioxide, the mass ratio of two components is modified alta-mud: aluminium sesquioxide=100:25 in the gained product of roasting;
(3) by modified alta-mud: the mass ratio of silver=100:0.5 takes by weighing Silver Nitrate, be mixed with concentration and be 1.5% silver salt solution, to go up the one-step baking product immerses wherein, 90 ℃ of oven dry down, change over to then and be warming up to 500 ℃ in the retort furnace, be incubated 2 hours, make silver salt be converted into silver, promptly make waste water conditioner (A), the mass ratio of its each component is a modified alta-mud: aluminium sesquioxide: silver=100:25:0.5.
Getting concentration is 250mg.L
-1The directly darkish blue and direct pink 12B aqueous solution 100mL of industrial dye, place two 250mL beakers respectively, add a certain amount of above-mentioned waste water conditioner (A), stirred 5~10 minutes, left standstill 4 hours or the high speed centrifugation separation, get supernatant liquid and on spectrophotometer, measure its absorbancy, calculate percent of decolourization; Measure its COD with the sealed tube method
Cr, calculating the COD clearance, the result is as shown in table 1.
Table 1
Dyestuff | Treatment agent dosage/g | Percent of decolourization/% | COD clearance/% |
Directly darkish blue | 0.20 | 98.0 | 89.1 |
Direct pink 12B | 0.10 | 90.2 | 80.4 |
Get the indicator tropeolin-D and the aqueous solution of methylene blue 100mL that are difficult to decolour, place the 250mL beaker respectively, respectively add a certain amount of above-mentioned waste water conditioner (A), stirred 5~10 minutes, left standstill 4 hours or the high speed centrifugation separation, get supernatant liquid and measure its percent of decolourization, the results are shown in Table 2.
Table 2
Indicator | Concentration/mg.L -1 | Treatment agent (A) dosage/g | Percent of decolourization/% |
Tropeolin-D | 10 | 0.50 | 91.0 |
Methylene blue | 200 | 0.50 | 99.5 |
Embodiment 2
Press wilkinite: the mass ratio of thin powdered carbon=100:5, operate according to the method and the step of the foregoing description 1 (1), make the modified alta-mud particle; Press modified alta-mud: the mass ratio of aluminium=100:4, operate according to the method and the step of the foregoing description 1 (2); Press modified alta-mud: the mass ratio of silver=100:0.75, operate according to the method and the step of the foregoing description 1 (3), promptly make waste water conditioner (B), the mass ratio of its each component is a modified alta-mud: aluminium sesquioxide: silver=100:15:0.75.
Getting concentration is 500mg.L
-1Industrial dye direct light turquoise blue, directly fast scarlet, directly dark blue, direct sky blue, directly dark cigarette, direct acidproof each 100mL of the aqueous solution such as purplish red, place 6 beakers respectively, add a certain amount of waste water conditioner (B), stirred 5~10 minutes, left standstill 4 hours or the high speed centrifugation separation, get supernatant liquid and measure percent of decolourization and COD clearance, the results are shown in Table 3.
Table 3
Dyestuff | Treatment agent (B) dosage/g | Percent of decolourization/% | COD clearance/% |
Direct light turquoise blue | 0.50 | 99.8 | 93.5 |
Direct fast scarlet | 0.50 | 97.2 | 92.8 |
Directly dark blue | 0.50 | 98.0 | 93.1 |
Direct sky blue | 0.50 | 96.9 | 90.7 |
Directly dark cigarette | 0.50 | 97.2 | 96.0 |
Directly acidproof purplish red | 0.50 | 92.6 | 89.2 |
Get two kinds of complicated components, colourity height, well-drilling waste water 100mL that COD is high respectively, each adds a small amount of polymeric flocculant, stirred 3 minutes, left standstill 10 minutes, and then adding 0.50g waste water conditioner (B), stirred 5 minutes, and left standstill 4 hours or the high speed centrifugation separation, get supernatant liquid and measure its COD clearance.The results are shown in Table 4.
Table 4
Water sample | Treatment effect |
(aterrimus contains multiple mud conditioner, oils and suspended substance etc., COD=783mg.L to well-drilling waste water 2 -1) | Floss and particulate matter sedimentation are fast, and supernatant liquid water white transparency, COD clearance are 90.6% |
(brown-black contains multiple mud conditioner, oils and suspended substance etc., COD=1958mg.L to well-drilling waste water 2 -1) | Floss and particulate matter sedimentation are fast, and supernatant liquid water white transparency, COD clearance are 92.7% |
Getting 0.5g waste water conditioner (B) concentration of treatment is 250mg.L
-1Direct pink 12B dye solution, isolated throw out is put into retort furnace, in 500 ℃ the insulation 1 hour, promptly get after the cooling and reclaim waste water conditioner.Use the above-mentioned dye solution of this recovery waste water conditioner re-treatment, the relation such as the table 5 of recovered frequency and percent of decolourization.
Table 5
Recovered frequency | 1 | 2 | 3 | 4 |
Percent of decolourization/% | 94.3 | 94.1 | 93.5 | 93.7 |
Claims (1)
1 one kinds of waste water conditioners, form by modified alta-mud, aluminium sesquioxide, silver, described modified alta-mud is by wilkinite and the mass ratio grinding mixing of thin powdered carbon by 100:3~7, makes in 2~3 hours at 550~600 ℃ roasting temperatures, and the mass ratio of each component is:
Modified alta-mud 100
Aluminium sesquioxide 11~30
Silver 0.2~0.8,
This waste water conditioner is made by following preparation method: (1) presses the mass ratio of modified alta-mud: aluminium=100:3~8, take by weighing modified alta-mud and aluminium salt, elder generation's compound concentration is 10%~30% aluminum saline solution, again modified alta-mud is poured into wherein, left standstill after shaking up 1~2 hour, and under agitation dripped NH
3H
2O, regulating the pH value is 10,100 ℃ of oven dry down, is warming up to 400~500 ℃ of insulation roastings 1~2 hour more gradually; (2) by modified alta-mud: the mass ratio of silver=100:0.2~0.8 takes by weighing silver salt, elder generation's compound concentration is 1%~2.5% silver salt solution, product of roasting with step (1) immerses wherein again, 90 ℃ of oven dry down, change over to then and be warming up to 450~500 ℃ in the retort furnace, be incubated 2 hours, make silver salt be converted into silver, promptly get this waste water conditioner.
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CN104148007B (en) * | 2014-07-18 | 2016-03-02 | 大连理工大学 | A kind of preparation method of water treatment multifunctional material and application |
CN104857931B (en) * | 2015-05-14 | 2017-07-07 | 江苏玖川纳米材料科技有限公司 | A kind of production method of dyeing waste water adsorption-flocculation catalysis material |
CN106064049A (en) * | 2016-06-08 | 2016-11-02 | 芜湖市长江起重设备制造有限公司 | Crane compound for treatment of electroplating wastes that a kind of photocatalysis effect is good and preparation method thereof |
CN107758786A (en) * | 2017-10-23 | 2018-03-06 | 周瑛 | Efficient water scavengine agent |
CN107739105A (en) * | 2017-11-30 | 2018-02-27 | 天峨县平昌生态农业有限公司 | Domestic sewage treating compound and preparation method thereof |
CN109052666A (en) * | 2018-09-04 | 2018-12-21 | 赵小雷 | A kind of powdered water quality cleansing agent and preparation method thereof for crab cultivation |
CN115090257B (en) * | 2022-08-05 | 2023-11-24 | 内蒙古美赢环保科技有限公司 | Environment-friendly sewage treatment agent and preparation method thereof |
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P化工矿务与加工,No.4. 2005 * |
膨润土在废水处理中的应用研究进展. 杨性坤等.IM& * |
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