CN105502557B - A kind of method that organic wastewater is handled using modified alta-mud - Google Patents
A kind of method that organic wastewater is handled using modified alta-mud Download PDFInfo
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- CN105502557B CN105502557B CN201510883139.XA CN201510883139A CN105502557B CN 105502557 B CN105502557 B CN 105502557B CN 201510883139 A CN201510883139 A CN 201510883139A CN 105502557 B CN105502557 B CN 105502557B
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- bentonite
- manganese chloride
- organic
- manganese
- sediment
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Classifications
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F2101/30—Organic compounds
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
Abstract
The present invention discloses a kind of method that organic wastewater is handled using modified alta-mud.In turn include the following steps：1) calcium base or sodium bentonite are used, according to the amount of the corresponding 0.5~1.0mmol manganese chlorides of every gram of bentonite, the bentonite for crossing 20~50 mesh sieves is added in the manganese chloride solution that mass percent concentration is 15%~30%, 5~6h is stirred in 40~50 DEG C of waters bath with thermostatic control, 12~24h of aging, then the sediment is separated from liquid, sediment is washed with deionized water 2~3 times, drying, obtain the bentonite of manganese chloride modification；The bentonite that the manganese chloride for taking 1g to dry is modified, is added in the pending organic wastewaters of 1~1.5L, adds 0.2~0.6mmol sodium hydrogensulfites, stirs 10 20min, adds 1~2g hydrotalcites, and organic matter is decomposed, and precipitation separation, supernatant can discharge.This method by wastewater pH influenceed it is small, processing after non-secondary pollution.
Description
Technical field
The present invention relates to the exploitation of environment pollution control new technology, more particularly to one kind are organic using modified alta-mud processing
The method of waste water.
Background technology
With industrial boom, the type and quantity of waste water rapidly increase, and the pollution to water body is also increasingly extensively and tight
Weight, threaten the health and safety of the mankind.Because the composition of industrial organic waste water is more complicated, some are also toxic, industrial organic waste
Water process is more difficult also more important than municipal sewage treatment.
In high concentrated organic wastewater caused by industry, acid, bases are numerous, often with strong acid or strong basicity.Mainly have with
Lower harm：First, aerobism endangers：Due to biodegradation, high concentrated organic wastewater can make receiving water body anoxic or even detest
Death so as to produce stench, is deteriorated water quality and environment by oxygen, most aquatic organisms.Second, sense organ contact scar：High concentrated organic wastewater
Water body is lost use value, more have a strong impact on the normal life of the nearby water bodies people.Third, causing toxicity harm：Superelevation is dense
Contain a large amount of toxic organic compounds in degree organic wastewater, can constantly accumulate, store in the natural environments such as water body, soil, it is most laggard
Enter human body, be detrimental to health.
The processing method used at present mainly has：(1) oxidation-absorption method：Carried out just with coal dust after high-concentration waste water dilution
Walk coagulation, adsorption treatment, then with Fenton reagent catalysis oxidation and it is acid condense, then with coal dust coagulation, absorption.(2) burn
Method：Burning method is applied to processing high concentrated organic wastewater.Pretreated waste water is pressurized, filters, is delivered to after metering on chimney arch
Side, burner hearth evaporation burning is sprayed into by pressure-air atomization special nozzle.The method, can be right under conditions of safe operation of the boiler is ensured
High concentrated organic wastewater is thoroughly handled, its advantage be initial cost save, operating cost it is low.The method is present in actual popularization and application
Shortcoming is：1. waste water water is limited by matching boiler；2. labor is answered to waste component, it is ensured that do not influence boiler body combustion
Burn；3. the method needs further to be furtherd investigate in theory.(3) absorption method：Absorption method is to use consolidating with very strong adsorption capacity
Body adsorbent, the method for making one or several kinds of components in waste water be enriched in the surface of solids.The active charcoal of conventional adsorbent and
Resin, regenerating active carbon and elution are difficult；Resin adsorption has that usage range is wide, and inorganic salts are not influenceed in by waste water, absorption
Effect is good, and elution and regeneration are easy, steady performance, thus in ultra-high concentration organic wastewater processing, the most frequently used suction
Attached dose is resin sorbent.Resin adsorption method can be used for processing containing phenol, aniline, organic acid, nitro compounds, agricultural chemicals, dyestuff intermediate
It is a kind of effective ways for handling organic wastewater Deng waste water.(4) SBR processing：SBR sewage treatment process is modern activated sludge
One type of method, it is to be provided with one in the reactor of aeration and agitating device, according to predetermined program, carry out water-filling,
The operation of the process such as biochemical reaction, precipitation, draining, idle.This method is to utilize microbial degradation organic matter, but most of high
The industrial organic waste water biodegradability of concentration is very poor, institute's application prospect in terms of high-concentration industrial organic waste water processing in this way
It is limited.
The A of CN 104609597 disclose a kind of supper-fast method for removing organic pollutants, and this method, step is such as
Under：First, reducing agent is added into pending water；2nd, by the range of pending water pH regulations to 3-7；3rd, to pending
Water in add oxidant.This method is reacted using bisulfite and potassium permanganate or manganese dioxide, by producing height rapidly
The oxidant Mn (III) (non-complexing state) of activity, realizes the supper-fast removal to organic pollutants, can be potassium permanganate
The speed that pollutant is removed with manganese dioxide improves 1,000 to 1,000,000 times.But this method belongs to homogeneous reaction, after processing
Waste water contain a large amount of manganese and sulfate radical and be difficult to remove, and do not utilize reuse.In addition, the reaction needs in acid condition
Carry out, have certain requirement to the pH value of waste water, cause undesirable waste water to need regulation pH just can further react,
Reaction will also adjust pH value again to neutrality after completing, and waste time and energy.
Bentonite is the clay rock for essential mineral with montmorillonite (Montmorillonite).Montmorillonite is a kind of aqueous
Layer aluminosilicate mineral, aluminium (magnesium) oxygen (hydrogen-oxygen) are octahedra to be formed by being pressed from both sides among two silicon-oxy tetrahedrons, belongs to 2：1
The three-layer clay mineral of type.Brilliant interfloor distance is 0.96~2.14nm, and these nanoscale twins are reunited together, form hundreds of nanometers
To several microns of clay particle.Bentonite has very strong cation exchange capacity (CEC), under certain physical-chemical conditions, Ca2+、
Mg2+、Na+、K+、Fe2+、Cu2+Etc. can be exchanged with each other.Cation exchange is bentonitic important process characteristic, special using this
Property, bentonite can be modified, such as prepare alta-mud load catalyst.
The content of the invention
The purpose of the present invention is that difficult, condition is harsh to overcome the shortcomings of to separate in the prior art, there is provided one kind, which utilizes, to be changed
The method of property bentonite in treatment organic wastewater.
The technical solution adopted by the present invention is in turn include the following steps：
1) calcium base or sodium bentonite are used, the amount of 0.5~1.0mmol manganese chlorides is corresponded to according to every gram of bentonite, incited somebody to action
The bentonite of 20~50 mesh sieves is added in the manganese chloride solution that mass percent concentration is 15%~30%, in 40~50 DEG C of perseverances
5~6h, 12~24h of aging are stirred in tepidarium, then the sediment is separated from liquid, sediment 2~3 is washed with deionized water
Time, drying, obtain the bentonite of manganese chloride modification；
2) bentonite that the manganese chloride for taking 1g to dry is modified, is added in the pending organic wastewaters of 1~1.5L, adds
0.2~0.6mmol sodium hydrogensulfites, 10-20min being stirred, adds 1~2g hydrotalcites, organic matter is decomposed, precipitation separation,
Supernatant can discharge.
It is an advantage of the invention that：
(1) between manganese chloride being exchanged into bentonite bed, the water treatment agent of safety and stability is prepared into, during reaction,
Pollutant is adsorbed to bentonite surface, and bisulfite reacts on bentonite surface and manganese ion, utilizes bentonite table
The acid degradation reaction completed to pollutant in face, react influenceed by water body pH value itself it is smaller.
(2) after the completion of reacting, caused manganese ion and sulfate ion are adsorbed by bentonite and bentonite respectively, processing
Do not remain, can be directly discharged in waste water afterwards.
Embodiment
3 embodiments of the present invention are provided further below：
Embodiment 1
Using sodium bentonite, the amount of 1.0mmol manganese chlorides is corresponded to according to every gram of bentonite, the bentonite of 50 mesh sieves will be crossed
It is added in the manganese chloride solution that mass percent concentration is 30%, 6h, aging 24h is stirred in 50 DEG C of waters bath with thermostatic control, then will
The sediment separates from liquid, sediment is washed with deionized water 3 times, drying, obtains the bentonite of manganese chloride modification；1g is taken to dry
The bentonite that dry manganese chloride is modified, is added in the pending gold orange II waste water of 1.5L, adds 0.6mmol bisulfites
Sodium, 20min is stirred, adds 2g hydrotalcites, organic matter is decomposed, and precipitation separation, clearance 97.6%, supernatant can be arranged
Put.
Embodiment 2
Using calcium-base bentonite, the amount of 0.5mmol manganese chlorides is corresponded to according to every gram of bentonite, the bentonite of 20 mesh sieves will be crossed
It is added in the manganese chloride solution that mass percent concentration is 15%, 5h, aging 12h is stirred in 40 DEG C of waters bath with thermostatic control, then will
The sediment separates from liquid, sediment is washed with deionized water 2 times, drying, obtains the bentonite of manganese chloride modification；1g is taken to dry
The bentonite that dry manganese chloride is modified, is added in the pending phenolic waste waters of 1L, adds 0.2mmol sodium hydrogensulfites, stir
10min is mixed, adds 1g hydrotalcites, organic matter is decomposed, and precipitation separation, clearance 98.5%, supernatant can discharge.
Embodiment 3
Using sodium bentonite, the amount of 0.8mmol manganese chlorides is corresponded to according to every gram of bentonite, the bentonite of 30 mesh sieves will be crossed
It is added in the manganese chloride solution that mass percent concentration is 30%, 6h, aging 24h is stirred in 50 DEG C of waters bath with thermostatic control, then will
The sediment separates from liquid, sediment is washed with deionized water 3 times, drying, obtains the bentonite of manganese chloride modification；1g is taken to dry
The bentonite that dry manganese chloride is modified, is added in the pending gold orange II waste water of 1.5L, adds 0.5mmol bisulfites
Sodium, 20min is stirred, adds 2g hydrotalcites, organic matter is decomposed, and precipitation separation, clearance 97.9%, supernatant can be arranged
Put.
Claims (1)
- A kind of 1. method that organic wastewater is handled using modified alta-mud, it is characterized in that in turn including the following steps：1) according to the amount of the corresponding 0.5~1.0mmol manganese chlorides of every gram of bentonite, the bentonite for crossing 20~50 mesh sieves is added to matter Measure in the manganese chloride solution that percent concentration is 15%~30%, 5~6h of stirring in 40~50 DEG C of waters bath with thermostatic control, aging 12~ 24h, then sediment is separated from liquid, sediment is washed with deionized water 2~3 times, dries, obtain the swelling of manganese chloride modification Soil；2) bentonite that the manganese chloride for taking 1g to dry is modified, is added in the pending organic wastewaters of 1~1.5L, adds 0.2 ~0.6mmol sodium hydrogensulfites, 10-20min is stirred, adds 1~2g hydrotalcites, organic matter is decomposed, precipitation separation, supernatant Liquid can discharge.
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| CN201510883139.XA CN105502557B (en) | 2015-12-03 | 2015-12-03 | A kind of method that organic wastewater is handled using modified alta-mud |
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| CN201510883139.XA CN105502557B (en) | 2015-12-03 | 2015-12-03 | A kind of method that organic wastewater is handled using modified alta-mud |
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| CN105502557A CN105502557A (en) | 2016-04-20 |
| CN105502557B true CN105502557B (en) | 2017-12-05 |
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| CN108671883B (en) * | 2018-05-30 | 2021-04-13 | 贾玉臻 | Method for treating arylamine-containing pharmaceutical wastewater by using manganese heterophyllite material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100005963A1 (en) * | 2007-01-29 | 2010-01-14 | University Of Nottingham | Sorbent composition |
| CN104609597A (en) * | 2014-12-31 | 2015-05-13 | 同济大学 | Method for removing organic pollutants in water at ultrahigh speed |
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- 2015-12-03 CN CN201510883139.XA patent/CN105502557B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100005963A1 (en) * | 2007-01-29 | 2010-01-14 | University Of Nottingham | Sorbent composition |
| CN104609597A (en) * | 2014-12-31 | 2015-05-13 | 同济大学 | Method for removing organic pollutants in water at ultrahigh speed |
Non-Patent Citations (1)
| Title |
|---|
| "Removal of lead ions by acid activated and manganese oxide-coated bentonite";E.Eren etal.;《Journal of Hazardous Materials》;20090130;第678页 * |
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Effective date of registration: 20221201 Address after: 414, Block C, Tianrun Science and Technology Building, Changzhou Science and Education City, No. 18-3, Changwu Middle Road, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee after: Jiangsu Shenghe Environmental Protection Technology Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |