CN107055737A - A kind of Organic Pollution groundwater remediation method - Google Patents
A kind of Organic Pollution groundwater remediation method Download PDFInfo
- Publication number
- CN107055737A CN107055737A CN201611216600.7A CN201611216600A CN107055737A CN 107055737 A CN107055737 A CN 107055737A CN 201611216600 A CN201611216600 A CN 201611216600A CN 107055737 A CN107055737 A CN 107055737A
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- Prior art keywords
- electroslag
- reagent
- hydrogen peroxide
- organic pollution
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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
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to Organic Pollution Treatment process field, more particularly to a kind of Organic Pollution groundwater remediation reagent and method using electroslag as raw material.The Organic Pollution groundwater remediation method of the present invention, comprises the following steps：Reagent will be repaired and be added in Organic Pollution underground water and fully reacted, the reparation reagent includes electroslag and hydrogen peroxide, when the reparation reagent is added, and first powers up clinker, then add hydrogen peroxide.The present invention, instead of materials such as ferrous sulfate, iron oxide, realizes highly effective reaction and non-secondary pollution, effect with low cost using electroslag.
Description
Technical field
It is more particularly to a kind of using electroslag as the organic of raw material the present invention relates to Organic Pollution Treatment process field
Thing polluted underground water repairs medicament and method.
Background technology
The national Investigation of Soil Pollution publication that on April 17th, 2014 announces discloses BHC, DDT, the class of polycyclic aromatic hydrocarbon 3
Organic contamination object point position exceeding standard rate is respectively 0.5%, 1.9%, 1.4%.Chemical Manufacture and a large amount of of agricultural chemicals use what is produced
Polluter is entered in soil and groundwater system by different approaches.Already lead to soil and groundwater and there is halogenated hydrocarbons, chlorine
For the pollution problem of the various volatile and difficult volatile organic compounds such as benzene class, mononuclear aromatics, organo-chlorine pesticide, polycyclic aromatic hydrocarbon.
Underground water Organic Pollution reparation is directed to, what is largely used in practice at present mainly has permeable reactive wall skill
Art, aeration process in situ, chemical oxidation techniques, bioremediation technology etc..Permeable reactive wall technology mainly uses filling to have
The method that active reaction material removes dirty water pollutant, most commonly Zero-valent Iron and nano zero valence iron, one-time investment
It is higher, and be easily blocked, engineering measure and operation maintenance are relative complex.Aeration process in situ is that a kind of emerging underground water can be waved
The recovery technique of hair property organic matter, injects air into below Polluted area, volatile organic matter is resolved into air stream and led to
Handled on ground.The technical costs is subjected to, but not good to not volatile organic matter treatment effect, and to soil and geology
The requirement of structure is higher.In situ chemical oxidation technology is to include permanganate using oxidant, repair reagent, ozone and over cure
The method of the oxidation processes organic matter such as hydrochlorate, has the advantages that short cycle, instant effect, cost be low and high treating effect.Biology is repaiied
Recovering technology is exactly that rehabilitation expense is relatively low, still come degradation of organic substances using indigenous microorganism, external microorganism and genetic engineering bacterium
The restriction for receiving electron acceptor is repaired, therefore it is also very important for how persistently conveying dissolved oxygen.
Due to the higher cost performance of chemical oxidation techniques, largely it is applied in organic matter site remediation at home, for
Volatile and difficult volatile organic matter is respectively provided with preferable effect, but there is also there is sulfate radical etc. after reaction for ferrous sulfate
, there is certain influence to water body, fe or ferriferous oxide price are higher in the presence of a large amount of ions.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of using electroslag as raw material
Organic Pollution groundwater remediation medicament and method, be Organic Pollution underwater prevention and electroslag comprehensive utilization find it is new
Approach.
In order to achieve the above objects and other related objects, the present invention is adopted the following technical scheme that：
The first aspect of the present invention comprises the following steps there is provided a kind of Organic Pollution groundwater remediation method：It will repair
Reagent, which is added in Organic Pollution underground water, fully to react, and the reparation reagent includes electroslag and hydrogen peroxide, the reparation
When reagent is added, clinker is first powered up, then add hydrogen peroxide.
Preferably, electroslag and hydrogen peroxide independent packaging.
The Organic Pollution underground water refers to by the underground water of Organic Pollution.The organic matter includes but is not limited to：
BHC, DDT, polycyclic aromatic hydrocarbon, benzene, toluene, 2- chlorotoluenes, 4- chlorotoluenes, chloroform etc..For example, in the embodiment of the present invention,
Contain benzene, toluene, 2- chlorotoluenes, 4- chlorotoluenes, chloroform in the Organic Pollution underground water.
Preferably, the fineness ＜ 0.8mm of the electroslag.
Preferably, by weight percentage, in the electroslag iron oxide content >=25wt%, the content of fe >=
5wt%.The iron oxide includes FeO and Fe2O3。
It is further preferred that by weight percentage, the electroslag contains 8~10wt% silica (SiO2), 2
~10wt% magnesia (MgO), 35~45wt% calcium oxide (CaO), 5~10wt% fe (MFe), 25~
30wt% iron oxide (FeO, Fe2O3)。
Preferably, content of beary metal is met in the electroslag：Antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, mercury, nickel, tin,
Vanadium, the total amount of zinc are less than 0.5mg/kg.
Preferably, the molar ratio in the hydrogen peroxide and electroslag between total ferro element is 1：(3~15).It is described
Molar ratio in hydrogen peroxide and electroslag between total ferro element can be 1：(3~10).The hydrogen peroxide and electroslag
In molar ratio between total ferro element can be 1：(3~5).In the hydrogen peroxide and electroslag between total ferro element
Molar ratio can be 1：(5~15).Molar ratio in the hydrogen peroxide and electroslag between total ferro element can
To be 1：(5~10).Molar ratio in the hydrogen peroxide and electroslag between total ferro element can be 1：(10~15).
Preferably, addition reparation reagent being added in Organic Pollution underground water is 20~100g/L.Specifically
Refer to, per in 1L Organic Pollution underground water, add 20~100g reparation reagent.The addition can be 20~50g/L.Institute
It can be 20~33g/L to state addition.The addition can be 20~25g/L.The addition can be 25~100g/L.
The addition can be 25~50g/L.The addition can be 25~33g/L.The addition can be 33~100g/
L.The addition can be 33~50g/L.The addition can be 50~100g/L.
Added specifically, the mode that electroslag and hydrogen peroxide are added in Organic Pollution underground water can be injection.
After first electroslag and water being mixed, mixed by injection machine and inject underground water pollution feather tract domain；Inject
Hydrogen peroxide is injected into underground water pollution feather tract domain and reacted by Cheng Houzai.
Those skilled in the art can choose suitable means to ensure electroslag and hydrogen peroxide and Organic Pollution underground water
It is sufficiently mixed reaction.
The second aspect of the present invention is described to repair there is provided a kind of reparation reagent for Organic Pollution groundwater remediation
Retrial agent includes electroslag and hydrogen peroxide.
Preferably, electroslag and the hydrogen peroxide independent packaging.
Preferably, the fineness ＜ 0.8mm of the electroslag.
Preferably, by weight percentage, in the electroslag iron oxide content >=25wt%, the content of fe >=
5wt%.The iron oxide includes FeO and Fe2O3。
It is further preferred that by weight percentage, the electroslag contains 8~10wt% silica (SiO2), 2
~10wt% magnesia (MgO), 35~45wt% calcium oxide (CaO), 5~10wt% fe (MFe), 25~
30wt% iron oxide (FeO, Fe2O3)。
Preferably, content of beary metal is met in the electroslag：Antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, mercury, nickel, tin,
Vanadium, the total amount of zinc are less than 0.5mg/kg.
Preferably, the molar ratio in the hydrogen peroxide and electroslag between total ferro element is 1：(3~15).It is described
Molar ratio in hydrogen peroxide and electroslag between total ferro element can be 1：(3~10).The hydrogen peroxide and electroslag
In molar ratio between total ferro element can be 1：(3~5).In the hydrogen peroxide and electroslag between total ferro element
Molar ratio can be 1：(5~15).Molar ratio in the hydrogen peroxide and electroslag between total ferro element can
To be 1：(5~10).Molar ratio in the hydrogen peroxide and electroslag between total ferro element can be 1：(10~15).
Second aspect of the present invention provides preceding method or repairs purposes of the reagent in Organic Pollution groundwater remediation field.
As described above, compared with prior art, the invention has the advantages that：
The present invention replaces the material such as ferrous sulfate, iron oxide using electroslag, realize highly effective reaction and non-secondary pollution,
Effect with low cost.Electroslag is the typical solid waste discharged in steelmaking process, and main utilization ways are grinding or granulation
Afterwards as cement raw material, road-making material, ground backfilling material and some tile products, concrete product etc..The present invention by its
Field of environmental improvement is applied, even more a kind of optimal path turned waste into wealth.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be clear that in the following example not specifically dated process equipment or device using conventional equipment in the art or
Device.
In addition, it is to be understood that the one or more method and steps mentioned in the present invention do not repel before and after the combination step
There can also be other method step or other method step can also be inserted between the step of these are specifically mentioned, unless separately
It is described；It should also be understood that the combination annexation between the one or more equipment/devices mentioned in the present invention is not repelled
Can also have other equipment/device before and after the unit equipment/device or two equipment/devices specifically mentioning at these it
Between can also insert other equipment/device, unless otherwise indicated.Moreover, unless otherwise indicated, the numbering of various method steps is only
Differentiate the convenient tool of various method steps, rather than ordering or restriction enforceable model of the invention for limitation various method steps
Enclose, being altered or modified for its relativeness is of the invention enforceable when being also considered as in the case of without essence change technology contents
Category.
Embodiment
Typical electroslag mainly contains 8~10wt% silica (SiO2), 2~10wt% magnesia (MgO),
35~45wt% calcium oxide (CaO), 5~10wt% fe (MFe), 25~30wt% iron oxide (FeO, Fe2O3),
And a small amount of P205、Al2O3And sulfide etc..Main existing forms have simple substance, carbonate, silicate and oxide.
Electroslag content of beary metal is met：Antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, mercury, nickel, tin, vanadium, the total amount of zinc are less than 0.5mg/
kg。
In the present invention, by (＜ 0.8mm) after electroslag crushing and screening to certain fineness and hydrogen peroxide in constant weight ratio
Composition repairs reagent.Usually, in the reparation reagent, the electroslag and hydrogen peroxide of independent packaging are included.Hydrogen peroxide and electric furnace
Molar ratio in slag between total ferro element is different, can form different reparation reagents.The unit for repairing reagent addition is g/
L, refers to the amount of reparation reagent added in unit Organic Pollution underground water.
The oxide of irony and other materials in electroslag can make hydrogen peroxide catalytic decomposition produce hydroxyl radical free radical,
Hydroxyl radical free radical has very high electronegativity or electrophilicity, and organic constitution can be made to occur carbochain fracture, be finally oxidized into
CO2And H2O, reaches the purpose for removably descending Organic substance in water.
The specific composition of electroslag in the present embodiment is as follows：8wt% silica (SiO2), 2wt% magnesia
(MgO), 35wt% calcium oxide (CaO), 6wt% fe (MFe), 30wt% iron oxide (FeO, Fe2O3).Electroslag
Content of beary metal is met：Antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, mercury, nickel, tin, vanadium, the total amount of zinc are less than 0.5mg/kg.(Baosteel
Produced in factory).
In use, being added to reagent is repaired in constant weight ratio in Organic Pollution underground water.Specific addition side
Method, including step：After first being mixed electroslag and water, mixed by injection machine and inject underground water pollution feather tract
Domain；Hydrogen peroxide is injected into underground water pollution feather tract domain again after the completion of injection to be reacted.With repairing reagent and Organic Pollution
Lower water is sufficiently mixed after reaction (the present embodiment reacts 1 day), and USEPA 8260C-2006 gas phase colors are used to the waste water after processing
Spectrum/mass spectrography (instrument is Agilent7890A/5975C) is detected.
Table 1 repairs influence of the reagent addition to organic matter removal
(repair in reagent, the molar ratio in hydrogen peroxide and electroslag between total ferro element is 1:5)
Table 2 repairs reagent with the influence for comparing organic matter removal
(repairing influence of the reagent addition to organic matter removal, addition 20g/L)
The data as shown in Tables 1 and 2, it is known that, the present invention exists for the clearance of Organic Pollution underground Organic substance in water
More than 97%, the underground water after processing can meet underground standards of water quality (GB14848-93).
The electroslag that the present invention is used is as common industrial discarded object in a kind of steelmaking process, wherein containing substantial amounts of oxidation
Iron, fe and other metal oxides, do not have selectivity, to volatilization when carrying out synergistic oxidation organic matter with dual oxide
Property and volatile organic compound is not respectively provided with comparatively ideal effect.Sulfate iron and iron oxide, Gao Meng are replaced using electroslag
The conventional material such as sour potassium, with higher economic value, can substantially reduce processing cost, and processing equipment and common oxidation
Technology is the same, with wide applicability.It is organic that the electroslag particle diameter used carries out oxidation between≤0.8mm, with dual oxide
During thing under normal temperature and pressure also can fast reaction, and compared with ferrous sulfate, with reaction it is gentle, slowly discharge the characteristics of, keep away
Violent reaction causes place ground secondary pollution occur during being excused from a college course again, and the situation of security incident occur in personnel.This
Invent the electroslag used has extensive be applicable with dual oxide synergistic oxidation repairing organic underground water to the concentration of organic matter
Property, can concentration for the treatment of 0-600mg/l pollutant effluents, with preferable removal effect.The present invention uses common Industry Waste
Gurry vessel slag belongs to the regeneration of discarded object, with good society, economy, environmental benefit as medicament is administered.
In summary, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of Organic Pollution groundwater remediation method, comprises the following steps：Reagent will be repaired with being added to Organic Pollution
Fully reacted in lower water, the reparation reagent includes electroslag and hydrogen peroxide, when the reparation reagent is added, first powers up clinker,
Again plus hydrogen peroxide.
2. according to the method described in claim 1, it is characterised in that the fineness ＜ 0.8mm of the electroslag.
3. according to the method described in claim 1, it is characterised in that by weight percentage, iron oxide in the electroslag
Content >=25wt%, content >=5wt% of fe.
4. according to the method described in claim 1, it is characterised in that by weight percentage, the electroslag contain 8~
10wt% silica, 2~10wt% magnesia, 35~45wt% calcium oxide, 5~10wt% fe, 25~
30wt% iron oxide.
5. according to the method described in claim 1, it is characterised in that content of beary metal is met in the electroslag：Antimony, arsenic, beryllium,
Cadmium, chromium, cobalt, copper, lead, mercury, nickel, tin, vanadium, the total amount of zinc are less than 0.5mg/kg.
6. according to the method described in claim 1, it is characterised in that rubbing between total ferro element in the hydrogen peroxide and electroslag
Your proportion is 1：(3~15).
7. according to the method described in claim 1, it is characterised in that reagent will be repaired and be added in Organic Pollution underground water
Addition is 20~100g/L.
8. a kind of reparation reagent for Organic Pollution groundwater remediation, the reparation reagent includes electroslag and hydrogen peroxide.
9. reagent is repaired according to claim 8, it is characterised in that also including any one of following characteristics or multinomial：(1)
The fineness ＜ 0.8mm of the electroslag；(2) by weight percentage, in the electroslag iron oxide content >=25wt%, it is single
Content >=5wt% of matter iron；(3) by weight percentage, the electroslag contains 8~10wt% silica, 2~
10wt% magnesia, 35~45wt% calcium oxide, 5~10wt% fe, 25~30wt% iron oxide；(4) institute
Content of beary metal in electroslag is stated to meet：Antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, mercury, nickel, tin, vanadium, the total amount of zinc are less than
0.5mg/kg；(5) molar ratio in the hydrogen peroxide and electroslag between total ferro element is 1：(3~15).
10. reagent is repaired such as any one of claim 1~7 methods described or as described in any one of claim 8~9 in organic matter
Polluted underground water repairs the purposes in field.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611216600.7A CN107055737A (en) | 2016-12-26 | 2016-12-26 | A kind of Organic Pollution groundwater remediation method |
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| CN201611216600.7A CN107055737A (en) | 2016-12-26 | 2016-12-26 | A kind of Organic Pollution groundwater remediation method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126978A (en) * | 2017-11-28 | 2018-06-08 | 上海中冶环境工程科技有限公司 | A kind of restorative procedure of organic material contaminated soil |
| CN108405592A (en) * | 2018-01-30 | 2018-08-17 | 南京师范大学 | A method of utilizing magnetic iron-based spinel structure material while repairing organic and mercury contaminated soil |
| CN109772873A (en) * | 2018-10-30 | 2019-05-21 | 华南师范大学 | The composition and its restorative procedure of a kind of repairing organic polluted soil or underground water |
| CN110182987A (en) * | 2019-03-22 | 2019-08-30 | 江苏长三角环境科学技术研究院有限公司 | A method of it repairing Automobile Service and place combined pollution underground water is electroplated |
| CN111087064A (en) * | 2019-12-27 | 2020-05-01 | 中国环境科学研究院 | Remediation method for organic phenol polluted underground water |
| CN112408574A (en) * | 2019-08-22 | 2021-02-26 | 纳琦绿能工程有限公司 | Composite repairing agent for repairing underground water and preparation method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126978A (en) * | 2017-11-28 | 2018-06-08 | 上海中冶环境工程科技有限公司 | A kind of restorative procedure of organic material contaminated soil |
| CN108126978B (en) * | 2017-11-28 | 2021-06-08 | 上海中冶环境工程科技有限公司 | Remediation method for organic matter contaminated soil |
| CN108405592A (en) * | 2018-01-30 | 2018-08-17 | 南京师范大学 | A method of utilizing magnetic iron-based spinel structure material while repairing organic and mercury contaminated soil |
| CN109772873A (en) * | 2018-10-30 | 2019-05-21 | 华南师范大学 | The composition and its restorative procedure of a kind of repairing organic polluted soil or underground water |
| CN110182987A (en) * | 2019-03-22 | 2019-08-30 | 江苏长三角环境科学技术研究院有限公司 | A method of it repairing Automobile Service and place combined pollution underground water is electroplated |
| CN112408574A (en) * | 2019-08-22 | 2021-02-26 | 纳琦绿能工程有限公司 | Composite repairing agent for repairing underground water and preparation method and application thereof |
| CN111087064A (en) * | 2019-12-27 | 2020-05-01 | 中国环境科学研究院 | Remediation method for organic phenol polluted underground water |
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