USH404H - Disposal of inorganic chemical wastes - Google Patents
Disposal of inorganic chemical wastes Download PDFInfo
- Publication number
- USH404H USH404H US07/060,797 US6079787A USH404H US H404 H USH404 H US H404H US 6079787 A US6079787 A US 6079787A US H404 H USH404 H US H404H
- Authority
- US
- United States
- Prior art keywords
- waste material
- inorganic chemical
- chemical waste
- inorganic
- waste
- 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.)
- Abandoned
Links
- 239000002894 chemical waste Substances 0.000 title claims 9
- 239000002699 waste material Substances 0.000 claims abstract description 26
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical class CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims abstract description 14
- 231100000331 toxic Toxicity 0.000 claims abstract description 13
- 230000002588 toxic effect Effects 0.000 claims abstract description 13
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- 230000002378 acidificating effect Effects 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 239000010801 sewage sludge Substances 0.000 claims abstract description 6
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 5
- 229940098779 methanesulfonic acid Drugs 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000011398 Portland cement Substances 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- OPUAWDUYWRUIIL-UHFFFAOYSA-N methanedisulfonic acid Chemical compound OS(=O)(=O)CS(O)(=O)=O OPUAWDUYWRUIIL-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000126 substance Substances 0.000 claims abstract description 3
- 150000002739 metals Chemical class 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052716 thallium Inorganic materials 0.000 claims description 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 239000003495 polar organic solvent Substances 0.000 claims 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims 1
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 6
- 239000011147 inorganic material Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000356 contaminant Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- MLKQJVFHEUORBO-UHFFFAOYSA-M silver;methanesulfonate Chemical compound [Ag+].CS([O-])(=O)=O MLKQJVFHEUORBO-UHFFFAOYSA-M 0.000 abstract description 2
- 230000003381 solubilizing effect Effects 0.000 abstract description 2
- 238000009933 burial Methods 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000010815 organic waste Substances 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000010805 inorganic waste Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/004—Sludge detoxification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/008—Sludge treatment by fixation or solidification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- an object of this invention is to provide a method for removing insoluble inorganic salts from waste materials by converting them to a soluble form which can be recovered and recycled or which can be safely disposed of without contaminating the environment.
- a further object of this invention is to provide a method which converts insoluble inorganic salts into highly soluble acidic products which are soluble in aqueous and selected organic systems.
- Still a further object of this invention is to provide a method which converts waste portions of inorganic material to a neutralized form which is subsequently converted to a solid form which can be buried safely without concern of contaminating the environment.
- Insoluble inorganic salts of waste materials are effectively removed from the waste materials by reacting, while agitating the waste materials with methanesulfonic acid or methanedisulfonic acid to convert them into mesylates.
- the mesylate salts are highly soluble in aqueous and selected organic systems.
- the unique solubilizing property of the mesylates offers the ability of extracting such toxic metal contaminants as lead, cadmium, etc. from sewage sludge.
- the metal salts can thus be removed and recycled.
- Another or alternate disposal method for waste inorganic material is achieved by the procedure which includes neutralizing any acidic inorganic waste material with a slurry of slaked lime. The neutralized material is then combined with the remainder of the waste material. The waste material is transferred to a polyethylene bag which is used to line the inside of a container. A mixture of enough sand and Portland cement is added and mixed to produce a mixture that hardens overnight. The resulting block of concrete, contained within the polyethylene bag, is buried safely without concern of contaminating the environment.
- Inorganic salts contained in waste material such as sewage sludge are effectively removed or disposed of by two different methods.
- Method 1 is preferred where the toxic metal contaminants such as lead, cadmium, etc. are desired to be removed, recovered and recycled.
- Method 2 is preferred where the toxic metals are other inorganic salt materials are not desired to be recovered, but are desired to be safely buried without concern of contaminating the environment.
- Methanesulfonic acid (CH 3 SO 2 OH) and methanedisulfonic acid CH 2 (SO 2 OH) 2 are effective in removing the insoluble inorganic salts by converting them into mesylates.
- the mesylates salts which contain the toxic metal components of the waste materials are highly soluble in aqueous and certain organic systems.
- Sludge or the waste material in a slurry form is treated while being agitated with a stoichiometric excess of a methanesulfonic acid to yield metal mesylates which are highly soluble in water.
- metal mesylates which are highly soluble in water.
- 1.0 part of silver mesylate or 2.0 parts of stannous mesylate or lead(II) mesylate will dissolve in 1.0 part of water at room temperature.
- Other insoluble inorganic salts containing toxic metal contaminants as lead, cadmium, zinc, beryllium, chromium, nickel, vanadium, thallium, and etc. are extracted from sewage sludge. The metals of the salts can be recovered and recycled.
- Acidic inorganic materials contained in waste are disposed of by the following procedure: any waste acidic inorganic material is neutralized using a slurry of slaked lime. The neutralized material is then combined with the remainder of the waste material. The waste material is transferred to a polyethylene bag which is used to line the inside of a container. The waste material is then placed in the polyethylene bag, and mixed with enough sand and Portland cement to produce a mixture that will harden overnight. The resulting block of concrete, contained within the polyethylene bag, can be buried safely without concern of contaminating the environment.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Recovery and disposing of waste materials containing inorganic chemicals not be effected by incineration to meet environmental regulations as is the situation with waste organic materials. As long as the inorganic toxic materials are in some soluble form, they can pollute the environment, and, also, end up in the water supplies. Two different disposal methods are disclosed wherein one method is effective for removing the insoluble inorganic salts by converting them into mesylates by reaction with methanesulfonic acid or with methanedisulfonic acid. Most mesylate salts are highly soluble in aqueous and certain organic systems. As an illustration, 1.0 part of silver mesylate or 2.0 parts of stannous mesylate or lead(II) mesylate will dissolve in 1.0 part of water at room temperature. This unique solubilizing property offers the ability of leaching such toxic metal contaminants as lead, cadmium, etc. from sewage sludge. The metal salts can thus be recovered and recycled. The other method relates to preparing the waste material for a safe burial without concern of contaminating the environment. This method is achieved by the following procedure: any acidic waste inorganic material is neutralized using a slurry of slaked lime. The neutralized material is then combined with the remainder of the waste material. The waste material is transferred to a polyethylene bag which is used to line the inside of a container. The waste material is then placed in the polyethylene bag, and mixed with enough sand and portland cement to produce a mixture that will harden overnight. The resulting block of concrete, contained within the polyethylene bag, can be buried safely without concern of contaminating the environment.
Description
The invention described herein may be manufactured, used, and licensed by or for the Government for governmental purposes without the payment to me of any royalties thereon.
The disposal of waste materials containing inorganic chemicals cannot be effected by incineration as is the situation with typical organic waste materials. Typical organic waste material when burned yield gaseous products which can be safely disposed of in accordance with environmental regulations. To the contrary, inorganic materials having toxic components when burned can still yield toxic products which are in some soluble form which make them conducive to polluting the environment, and also ending up in the water supplies.
Thus, there is an immediate need for an effective method of removing the insoluble inorganic salts from waste materials such as sewage sludge.
Therefore, an object of this invention is to provide a method for removing insoluble inorganic salts from waste materials by converting them to a soluble form which can be recovered and recycled or which can be safely disposed of without contaminating the environment.
A further object of this invention is to provide a method which converts insoluble inorganic salts into highly soluble acidic products which are soluble in aqueous and selected organic systems.
Still a further object of this invention is to provide a method which converts waste portions of inorganic material to a neutralized form which is subsequently converted to a solid form which can be buried safely without concern of contaminating the environment.
Insoluble inorganic salts of waste materials are effectively removed from the waste materials by reacting, while agitating the waste materials with methanesulfonic acid or methanedisulfonic acid to convert them into mesylates. The mesylate salts are highly soluble in aqueous and selected organic systems.
The unique solubilizing property of the mesylates offers the ability of extracting such toxic metal contaminants as lead, cadmium, etc. from sewage sludge. The metal salts can thus be removed and recycled.
Another or alternate disposal method for waste inorganic material is achieved by the procedure which includes neutralizing any acidic inorganic waste material with a slurry of slaked lime. The neutralized material is then combined with the remainder of the waste material. The waste material is transferred to a polyethylene bag which is used to line the inside of a container. A mixture of enough sand and Portland cement is added and mixed to produce a mixture that hardens overnight. The resulting block of concrete, contained within the polyethylene bag, is buried safely without concern of contaminating the environment.
Inorganic salts contained in waste material such as sewage sludge are effectively removed or disposed of by two different methods.
Method 1 is preferred where the toxic metal contaminants such as lead, cadmium, etc. are desired to be removed, recovered and recycled. Method 2 is preferred where the toxic metals are other inorganic salt materials are not desired to be recovered, but are desired to be safely buried without concern of contaminating the environment.
Methanesulfonic acid (CH3 SO2 OH) and methanedisulfonic acid CH2 (SO2 OH)2 are effective in removing the insoluble inorganic salts by converting them into mesylates. The mesylates salts which contain the toxic metal components of the waste materials are highly soluble in aqueous and certain organic systems.
Sludge or the waste material in a slurry form is treated while being agitated with a stoichiometric excess of a methanesulfonic acid to yield metal mesylates which are highly soluble in water. As an illustration, 1.0 part of silver mesylate or 2.0 parts of stannous mesylate or lead(II) mesylate will dissolve in 1.0 part of water at room temperature. Other insoluble inorganic salts containing toxic metal contaminants as lead, cadmium, zinc, beryllium, chromium, nickel, vanadium, thallium, and etc., are extracted from sewage sludge. The metals of the salts can be recovered and recycled.
Acidic inorganic materials contained in waste are disposed of by the following procedure: any waste acidic inorganic material is neutralized using a slurry of slaked lime. The neutralized material is then combined with the remainder of the waste material. The waste material is transferred to a polyethylene bag which is used to line the inside of a container. The waste material is then placed in the polyethylene bag, and mixed with enough sand and Portland cement to produce a mixture that will harden overnight. The resulting block of concrete, contained within the polyethylene bag, can be buried safely without concern of contaminating the environment.
Claims (3)
1. A method of disposal of waste inorganic chemical material containing insoluble inorganic salts of toxic metals, said method comprising:
(i) treating said inorganic chemical waste material in the form of a slurry while being agitated with an excess of a stoichiometric amount of a compound selected from the compounds consisting of methanesulfonic acid and methanedisulfonic acid to convert said insoluble inorganic salts of toxic metals into metal mesylates;
(ii) solublizing said metal mesylates in an aqueous or a polar organic solvent system; and,
(iii) recovering said metal mesylates which contain toxic metals leached from said inorganic chemical waste materials.
2. The method of claim 1 wherein said inorganic chemical waste material is in the form of sewage sludge and wherein said insoluble inorganic salts contain the toxic metals comprising lead, cadmium, zinc, beryllium, chromium, nickel, vanadium, and thallium.
3. A method of disposal of acidic organic chemical waste material which comprises;
(i) neutralizing while agitating a portion of said acidic inorganic chemical waste material using a slurry of slaked lime;
(ii) combining a remaining portion of said acidic inorganic chemical waste material in sufficient quantity to retain neutrality of the combined said portions and said slurry of slaked lime;
(iii) transferring said neutralized acidic inorganic chemical waste material to a polyethylene bag which is used to line the inside of a container; and
(iv) combining a sufficient amount of sand and portland cement with said neutralized acidic inorganic chemical waste material to produce a mixture that will harden overnight to form a block of concrete, contained within said polyethylene bag and in a suitable form for being buried safely without concern of contaminating the environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/060,797 USH404H (en) | 1987-06-12 | 1987-06-12 | Disposal of inorganic chemical wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/060,797 USH404H (en) | 1987-06-12 | 1987-06-12 | Disposal of inorganic chemical wastes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USH404H true USH404H (en) | 1988-01-05 |
Family
ID=22031817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US07/060,797 Abandoned USH404H (en) | 1987-06-12 | 1987-06-12 | Disposal of inorganic chemical wastes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USH404H (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5284998A (en) * | 1991-02-14 | 1994-02-08 | Russell-Stanley Corporation | Drum and process for handling drum liners |
| US20110015112A1 (en) * | 2007-08-07 | 2011-01-20 | Arkema Inc. | Hard surface cleaner containing polysulfonic acid |
-
1987
- 1987-06-12 US US07/060,797 patent/USH404H/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5284998A (en) * | 1991-02-14 | 1994-02-08 | Russell-Stanley Corporation | Drum and process for handling drum liners |
| US5480056A (en) * | 1991-02-14 | 1996-01-02 | Russell-Stanley Corporation | Plunger for drum liner removal |
| US20110015112A1 (en) * | 2007-08-07 | 2011-01-20 | Arkema Inc. | Hard surface cleaner containing polysulfonic acid |
| US8338353B2 (en) * | 2007-08-07 | 2012-12-25 | Arkema Inc. | Hard surface cleaner containing polysulfonic acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
| AS | Assignment |
Owner name: UNITED STATES OF AMERICA, THE, AS REPRESENTED BY T Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SAYLES, DAVID C.;REEL/FRAME:004784/0713 Effective date: 19870526 |