WO2003008339A1 - Process - Google Patents
Process Download PDFInfo
- Publication number
- WO2003008339A1 WO2003008339A1 PCT/GB2002/003215 GB0203215W WO03008339A1 WO 2003008339 A1 WO2003008339 A1 WO 2003008339A1 GB 0203215 W GB0203215 W GB 0203215W WO 03008339 A1 WO03008339 A1 WO 03008339A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heavy metal
- process according
- lead
- organic
- ion exchanger
- Prior art date
Links
Classifications
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/04—Processes using organic exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
- B01J49/53—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents for cationic exchangers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
Definitions
- the present invention relates to a process for the extraction of an organic heavy metal compound from an aqueous medium.
- Organic heavy metal compounds have been used in a wide variety of industrial applications in recent years. For example, lead tetraethyl and lead tetramethyl have been used in large quantities as anti-knock compounds in fuels for four-stroke engines. In view of the reported toxicity and carcinogenic properties of lead alkyls and their decomposition products, their use has been kept to a minimum in Europe, and in a number of other regions. Nevertheless, in a number of countries lead alkyls have continued in use as anti-knock compounds.
- R represents methyl or ethyl
- L represents an inorganic acid residue such as CO 3 2" or SO 4 2" .
- Lead alkyls have been reported to act primarily on the human central nervous system, and may cause states of agitation or epileptic convulsions as well as leading to Parkinson's disease. The chronic effects may also produce the symptoms of lead poisoning. Contamination of the soil and thus of groundwater therefore presents a considerable problem, because the contaminants may easily pass into humans over the long term through drinking water. It is therefore necessary to remove lead alkyl contamination. Until now relatively little experience has been acquired in the purification of water contaminated with lead alkyls, and initially processes were only available which avoid additional contamination of the water, for example through the use of halogens, i.e. fluoride, chlorine and bromide (Schulze, Chem. Ztg. 64, 47, 1940.
- halogens i.e. fluoride, chlorine and bromide
- the disclosed process is technically complicated and un-economic, because the population of the relevant micro-organisms has to reach a certain size in order to be able to decompose the lead compounds within an acceptable period of time.
- the process is long and drawn out, in which the micro-organisms require a constant supply of additional nutrients in order to maintain their population at the necessary level.
- the lead is not removed completely from the soil, but is only converted into a less toxic form, and consequently the benefits are reduced.
- US-A-6030467 teaches a process for purifying sludge and soil, for example, in which lead organic compounds are flushed using an aqueous solution of a surface-active substance. This process is not suitable for removing contamination that is already in the groundwater. Moreover the cost in the case of wide scale contamination is very high.
- the present invention aims to provide a process that enables organic heavy metal compounds, such as lead alkyls, to be extracted simply, at a reasonable cost and almost entirely from contaminated water, especially groundwater.
- the present invention alleviates the problems of the prior art.
- the present invention provides a process for the extraction of an organic heavy metal compound from an aqueous medium comprising the step of contacting the aqueous medium containing the organic heavy metal compound with an ion exchanger.
- the present invention provides a use of an ion exchanger for the extraction of an organic heavy metal compound from an aqueous medium.
- the ion exchanger is a cation exchanger.
- the ion exchanger is an organic ion exchanger.
- the ion exchanger is an organic cation exchanger.
- an ion exchanger to meet the requirements of the organic heavy metal compound to be extracted from the aqueous medium.
- the ion exchanger will also be carefully selected to ensure that it only eliminates heavy metals from the water.
- the ion exchanger is a cation exchanger preference is given to cation exchangers containing chelate-forming groups, for example the cation exchanger TP 207 from Bayer AG, as well as ion exchangers that reduce water hardness, such as Amberlite from Messrs. Rohm & Haas.
- organic heavy metal compound it is meant a compound comprising a hydrocarbyl group and a heavy metal.
- hydrocarbyl group means a group comprising at least C and H and may optionally comprise one or more other suitable substituents. Examples of such substituents may include halo, alkoxy, nitro, an alkyl group, a cyclic group etc. In addition to the possibility of the substituents being a cyclic group, a combination of substituents may form a cyclic group. If the hydrocarbyl group comprises more than one C then those carbons need not necessarily be linked to each other. For example, at least two of the carbons may be linked via a suitable element or group. Thus, the hydrocarbyl group may contain hetero atoms. Hetero atoms may include, for instance, sulphur, nitrogen and oxygen.
- a typical hydrocarbyl group is a hydrocarbon group.
- hydrocarbon means any one of an alkyl group, an alkenyl group, an alkynyl group, which groups may be linear, branched or cyclic, or an aryl group.
- the term hydrocarbon also includes those groups but wherein they have been optionally substituted. If the hydrocarbon is a branched structure having substituent(s) thereon, then the substitution may be on either the hydrocarbon backbone or on the branch; alternatively the substitutions may be on the hydrocarbon backbone and on the branch.
- heavy metal it is meant a metal in accordance with the definition of the European Environment Agency, namely a “metal or metalloid which is stable and which have a density greater that 4.5 g/cm 3 .
- Particular heavy metals are lead, copper, nickel, cadmium, platinum, zinc, mercury and arsenic.
- the heavy metal of the organic heavy metal compound is lead.
- the organic heavy metal compound is a heavy metal alkyl.
- the heavy metal alkyl is a heavy metal C C 10 alkyl, preferably a heavy metal C C 6 alkyl, preferably a heavy metal C r C 3 alkyl, more preferably a heavy metal ethyl or heavy metal methyl.
- the organic heavy metal compound is a lead alkyl.
- the heavy metal alkyl is a lead C C ⁇ 0 alkyl, preferably a lead C C 6 alkyl, preferably a lead C C 3 alkyl, more preferably a lead ethyl or lead methyl.
- organic heavy metal compound is selected from
- the extraction process of the present invention may be used to extract organic heavy metal compounds from aqueous medium which ahs been intentionally or unintentionally contaminated with the compound.
- the aqueous medium may be for example water from the environment, such as groundwater, which has unintentionally been contaminated with organic heavy metal compounds.
- the aqueous medium may have resulted from the washing of a material which contained the organic heavy metal compound.
- the aqueous medium may have resulted from the a decontamination process performed on contaminated soil (earth), sludge or other industrial waste.
- the ion exchanger is an organic cation exchanger
- the heavy metal compound is a lead methyls or a lead ethyls
- the aqueous medium is groundwater.
- the present invention provides a process for the extraction of a lead methyl and/or a lead ethyl from groundwater comprising the step of contacting the groundwater with an organic cation exchanger.
- the ion exchanger of the invention may be subsequently regenerated after use to extract the heavy metal compound.
- the ion exchanger is regenerated by contact with one of the group selected from acids, sodium chloride solution, water having a temperature of greater than 60°C and combinations thereof.
- the eluate from the regeneration is treated with ozone at an elevated temperature, preferably a temperature of greater than 60°C.
- substantial quantities of the organic compounds are converted into inorganic compounds.
- the inorganic compounds can in turn can be precipitated as a sulphide.
- the heavy metal compound is precipitated from the eluate in the form of sulphide, and is optionally separated.
- Groundwater is extracted from a depth of 3 m from premises which were used for the production of the antiknock compound lead tetraethyl. 350 I of this water was purified using 1 I of a selective exchanger resin TP 207 supplied by Bayer AG.
- the exchanger resin was of the Na + form.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02749015A EP1406842A1 (en) | 2001-07-13 | 2002-07-12 | Process for the extraction of an organic heavy metal compound from an aqueous medium |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10133570A DE10133570C1 (en) | 2001-07-13 | 2001-07-13 | Purification of water, especially ground water, contaminated with lead alkyls, especially lead methyl and lead ethyl, comprises passing water through organic cation exchanger |
DE10133570.9 | 2001-07-13 | ||
DEPCT/DE02/01915 | 2002-05-23 | ||
PCT/DE2002/001915 WO2003006383A1 (en) | 2001-07-13 | 2002-05-23 | Method for purifying water |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003008339A1 true WO2003008339A1 (en) | 2003-01-30 |
Family
ID=25750294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/003215 WO2003008339A1 (en) | 2001-07-13 | 2002-07-12 | Process |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1406842A1 (en) |
WO (1) | WO2003008339A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104310667A (en) * | 2014-10-09 | 2015-01-28 | 常州大学 | Device for repairing heavy metal cadmium in underground water |
CN104310666A (en) * | 2014-10-09 | 2015-01-28 | 常州大学 | Method for repairing heavy metal chromium in underground water |
WO2022224951A1 (en) * | 2021-04-22 | 2022-10-27 | 株式会社トクヤマ | Ultraviolet ray irradiation device, and method for purifying organic compound |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3308061A (en) * | 1965-03-05 | 1967-03-07 | Du Pont | Ozone treatment of waste aqueous effluent from alkyllead manufacture |
DE2344279A1 (en) * | 1972-09-05 | 1974-03-21 | Rohm & Haas | REDUCTION OF LEAD IN ORGANIC LIQUIDS |
US3919077A (en) * | 1972-12-29 | 1975-11-11 | Darrell Duayne Whitehurst | Sorbent for removal of heavy metals |
US4070282A (en) * | 1975-04-15 | 1978-01-24 | Ppg Industries, Inc. | Method of removing dissolved organo-lead compounds from water |
US4592843A (en) * | 1984-10-03 | 1986-06-03 | Morton Thiokol, Inc. | Method for removal of organometallics from wastewater |
EP0491533A2 (en) * | 1990-12-17 | 1992-06-24 | Westinghouse Electric Corporation | A method of restoring contaminated solids using ion exchange powder contact |
EP0714712A1 (en) * | 1994-11-28 | 1996-06-05 | Degussa Aktiengesellschaft | Method of decontaminating soil |
WO2000001459A1 (en) * | 1998-07-07 | 2000-01-13 | Kx Industries, L.P. | Small diameter water stable zeolite composite useful as an ion exchange material |
GB2350356A (en) * | 1998-11-18 | 2000-11-29 | Univ Northumbria Newcastle | Removal of organometallic material from liquids |
-
2002
- 2002-07-12 EP EP02749015A patent/EP1406842A1/en not_active Withdrawn
- 2002-07-12 WO PCT/GB2002/003215 patent/WO2003008339A1/en not_active Application Discontinuation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3308061A (en) * | 1965-03-05 | 1967-03-07 | Du Pont | Ozone treatment of waste aqueous effluent from alkyllead manufacture |
DE2344279A1 (en) * | 1972-09-05 | 1974-03-21 | Rohm & Haas | REDUCTION OF LEAD IN ORGANIC LIQUIDS |
US3919077A (en) * | 1972-12-29 | 1975-11-11 | Darrell Duayne Whitehurst | Sorbent for removal of heavy metals |
US4070282A (en) * | 1975-04-15 | 1978-01-24 | Ppg Industries, Inc. | Method of removing dissolved organo-lead compounds from water |
US4592843A (en) * | 1984-10-03 | 1986-06-03 | Morton Thiokol, Inc. | Method for removal of organometallics from wastewater |
EP0491533A2 (en) * | 1990-12-17 | 1992-06-24 | Westinghouse Electric Corporation | A method of restoring contaminated solids using ion exchange powder contact |
EP0714712A1 (en) * | 1994-11-28 | 1996-06-05 | Degussa Aktiengesellschaft | Method of decontaminating soil |
WO2000001459A1 (en) * | 1998-07-07 | 2000-01-13 | Kx Industries, L.P. | Small diameter water stable zeolite composite useful as an ion exchange material |
GB2350356A (en) * | 1998-11-18 | 2000-11-29 | Univ Northumbria Newcastle | Removal of organometallic material from liquids |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104310667A (en) * | 2014-10-09 | 2015-01-28 | 常州大学 | Device for repairing heavy metal cadmium in underground water |
CN104310666A (en) * | 2014-10-09 | 2015-01-28 | 常州大学 | Method for repairing heavy metal chromium in underground water |
CN104310667B (en) * | 2014-10-09 | 2016-05-11 | 常州大学 | A kind of device of repairing heavy metal cadmium in underground water |
WO2022224951A1 (en) * | 2021-04-22 | 2022-10-27 | 株式会社トクヤマ | Ultraviolet ray irradiation device, and method for purifying organic compound |
Also Published As
Publication number | Publication date |
---|---|
EP1406842A1 (en) | 2004-04-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101818954B1 (en) | Removal of selenium from refinery wastewater | |
Dahab | Treatment alternatives for nitrate contaminated groundwater supplies | |
Glover et al. | N-nitrosomorpholine in potable reuse | |
Bejan et al. | Chemical methods for the remediation of ammonia in poultry rearing facilities: A review | |
US6207059B1 (en) | Process for treating wastewater | |
JP2008184470A (en) | Heavy metal-treating agent excellent in low temperature stability and method for treating heavy metal therewith | |
WO2003008339A1 (en) | Process | |
CN204644026U (en) | A kind of device adopting PhotoelectrochemicalTechnique Technique to remove ammonia nitrogen in water | |
RU2122753C1 (en) | Method of processing liquid wastes containing radionuclides | |
Hasan et al. | Disinfection by-product removal by activated carbon-using batch mode | |
DE10133570C1 (en) | Purification of water, especially ground water, contaminated with lead alkyls, especially lead methyl and lead ethyl, comprises passing water through organic cation exchanger | |
JP4553326B1 (en) | Method for decomposing and removing 1,4-dioxane contained in an aquatic medium at a low concentration | |
CN103771614B (en) | A kind of qualified discharge of high acid crude oil electric desalting wastewater and process for reclaiming | |
CN107804946B (en) | The technique for handling nitrosamines disinfection by-products in drinking water | |
Mukherjee et al. | Household water treatment option: removal of arsenic in presence of natural Fe-containing groundwater by solar oxidation | |
JP2002096057A (en) | Method of cleaning contaminated soil | |
JPH06285368A (en) | Regenerating method of zeolite for removing ammonia | |
Luiz et al. | A discussion paper on challenges and proposals for advanced treatments for potabilization of wastewater in the food industry | |
JP2827367B2 (en) | Wastewater treatment method | |
Gomes et al. | Ozone Kinetic Studies Assessment for the PPCPs Abatement: Mixtures Relevance. ChemEngineering 2022, 6, 20 | |
JP2009034557A5 (en) | ||
KR950013313B1 (en) | Waste water treatment method | |
JP2000042524A (en) | Method for degrading contaminant in soil and/or underground water | |
JPH08235B2 (en) | Development waste treatment method | |
CN104891717A (en) | Method and apparatus for removing ammonia nitrogen in water by utilizing photoelectrochemical technology |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002749015 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002749015 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2002749015 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |