GB2277889A - Cleaning process - Google Patents

Cleaning process Download PDF

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Publication number
GB2277889A
GB2277889A GB9309634A GB9309634A GB2277889A GB 2277889 A GB2277889 A GB 2277889A GB 9309634 A GB9309634 A GB 9309634A GB 9309634 A GB9309634 A GB 9309634A GB 2277889 A GB2277889 A GB 2277889A
Authority
GB
United Kingdom
Prior art keywords
waste
polluting elements
contacting
remove
hydrocarbons
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9309634A
Other versions
GB9309634D0 (en
Inventor
Astrid Ericksson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9309634A priority Critical patent/GB2277889A/en
Publication of GB9309634D0 publication Critical patent/GB9309634D0/en
Publication of GB2277889A publication Critical patent/GB2277889A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Treating Waste Gases (AREA)

Abstract

A method of cleaning waste water-based liquids, gas emissions to remove hydrocarbons or to remove other polluting elements or toxic waste, comprising contacting the liquid of gas containing hydrocarbons with a colloidal, biodegradable, aqueous system containing a mixture of non-ionic and anionic sufactants or contacting other polluting elements or toxic waste by a substance capable of counteracting and/or neutralising the polluting elements or toxicity. The method is especially applicable to exhaust gases from oil fired installations and to waste liquors from the steel industry and engineering works to remove hydrocarbons and to chemical and phamaceutical industries which creates polluting elements or toxic waste to be disposed of as waste liquors or gases.

Description

Cleaning Process This invention relates to a method of cleaning waste liquids and gases to remove hydrocarbons, in particular petroleum products, (either) "or other toxic waste" (or) "other polluting elements through combining processes; Hydrocarbon pollution such as emissions from power station chimneys water-based waste process liquors from milling and drilling fluids and the discharge of toxic waste into the environment can cause serious environmental problems.
According to the invention there is provided a method of cleaning waste water-based liquids and gas emissions.
In the case of hydrocarbons, the method comprises contacting the liquid or gas with a colloidal, biodegradable, aqueous system containing a mixture of non-ionic and anionic surfactants, for example the product InProve TM marketed by Unique Products, Inc of San Mateo, California, USA. The InProve product is sold as a cleanup material to accelerate the biodegrading in oil spillages in the sea or in soil or sand.
In general, gases can be contacted with an aqueous system containing the surfactants, for example in a conventional scrubber or countercurrent tower. Liquors can be dosed directly with the surfactants. Typically about 1 part surfactant mixture to 15-30 parts water-based liquor can be used.
In the cases of water based or gaseous toxic waste, the polluting element is contracted by a substance capable of counteracting and/or neutralising its toxicity.
After contact with the antidotal substance the water based liquor or scrub liquor is passed to a settling tank.
Upon confirmation that the polluting element has become innocuous, the method provides for combining the process of biodegrading and/or neutralising with a very sophisticated system of filtration, such as ultrafiltration, such as ultrafiltration.
I have now discovered that the surfactant material can equally strip oil and other hydrocarbons from exhaust gases, e. g. from oil fired installations such as power stations, or from contaminated waste liquors, especially those discharged from the steel industry or engineering works, and some water based or gaseous toxic waste can be counteracted and/or neutralised by contacting it with an antidotal substance, and then processing with a sophisticated system of filtration.
The cleansed liquid can be released into the environment. The resulting element from reclamation is according to legal disposal.

Claims (7)

Claims
1. A method of cleaning waste water-based liquids and gas emissions to remove hydrocarbons, comprising contacting the liquid or gas with a colloidal, biodegradable, aqueous system containing a mixture of non-ionic and anionic surfactants.
2. A method according to Claim 1 applied to exhaust gases from oil-fired installations.
3. A method according to Claim 1 applied to waste liquors discharged from the steel industry or engineering works.
4. A method according to Claim 3, in which about 1 part surfactant mixture to 15-30 parts liquor is used.
5. A method of cleansing waste water based liquids and gas emissions to remove polluting elements or toxins, comprising contacting the polluting elements or toxic waste with a substance capable of counteracting and/or neutralising the polluting elements or toxins.
6. A method according to Claim 5 applied to waste liquors discharged from the chemical industry.
7. A method according to Claim 5 applied to waste liquors from the pharmaceutical industry.
GB9309634A 1993-05-11 1993-05-11 Cleaning process Withdrawn GB2277889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9309634A GB2277889A (en) 1993-05-11 1993-05-11 Cleaning process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9309634A GB2277889A (en) 1993-05-11 1993-05-11 Cleaning process

Publications (2)

Publication Number Publication Date
GB9309634D0 GB9309634D0 (en) 1993-06-23
GB2277889A true GB2277889A (en) 1994-11-16

Family

ID=10735241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9309634A Withdrawn GB2277889A (en) 1993-05-11 1993-05-11 Cleaning process

Country Status (1)

Country Link
GB (1) GB2277889A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5858069A (en) * 1996-07-19 1999-01-12 The Boc Group Plc Treatment of liquid

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1297253A (en) * 1968-11-04 1972-11-22
GB1419803A (en) * 1973-11-21 1975-12-31 British Petroleum Co Detergent composition
GB1426646A (en) * 1972-02-22 1976-03-03 Banque Pour Lexpansion Ind Ban Composition for the elimination of mineral oil especially petroleum products by biological degradation
GB2121779A (en) * 1982-06-12 1984-01-04 British Petroleum Co Plc Dispersant composition
GB2128979A (en) * 1982-10-28 1984-05-10 Labofina Sa Treatment of oil slicks on seawater
EP0112053A1 (en) * 1982-11-18 1984-06-27 Exxon Research And Engineering Company Mineral oil based scrubbing liquid composition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1297253A (en) * 1968-11-04 1972-11-22
GB1426646A (en) * 1972-02-22 1976-03-03 Banque Pour Lexpansion Ind Ban Composition for the elimination of mineral oil especially petroleum products by biological degradation
GB1419803A (en) * 1973-11-21 1975-12-31 British Petroleum Co Detergent composition
GB2121779A (en) * 1982-06-12 1984-01-04 British Petroleum Co Plc Dispersant composition
GB2128979A (en) * 1982-10-28 1984-05-10 Labofina Sa Treatment of oil slicks on seawater
EP0112053A1 (en) * 1982-11-18 1984-06-27 Exxon Research And Engineering Company Mineral oil based scrubbing liquid composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5858069A (en) * 1996-07-19 1999-01-12 The Boc Group Plc Treatment of liquid

Also Published As

Publication number Publication date
GB9309634D0 (en) 1993-06-23

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)