DE19717723A1 - Coarse, permeable granulate for almost universal removal of heavy metal ions from water - Google Patents
Coarse, permeable granulate for almost universal removal of heavy metal ions from waterInfo
- Publication number
- DE19717723A1 DE19717723A1 DE1997117723 DE19717723A DE19717723A1 DE 19717723 A1 DE19717723 A1 DE 19717723A1 DE 1997117723 DE1997117723 DE 1997117723 DE 19717723 A DE19717723 A DE 19717723A DE 19717723 A1 DE19717723 A1 DE 19717723A1
- Authority
- DE
- Germany
- Prior art keywords
- heavy metal
- water
- metal ions
- weight
- granulate
- 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.)
- Granted
Links
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 15
- 150000002500 ions Chemical class 0.000 title claims abstract description 8
- 239000008187 granular material Substances 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 5
- 239000004571 lime Substances 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 3
- 239000003643 water by type Substances 0.000 claims abstract description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract 4
- 239000002351 wastewater Substances 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims 1
- 239000000920 calcium hydroxide Substances 0.000 claims 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims 1
- 230000035622 drinking Effects 0.000 claims 1
- 238000005067 remediation Methods 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 235000017550 sodium carbonate Nutrition 0.000 abstract 2
- 239000002893 slag Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 229910052770 Uranium Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical group [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- -1 converter Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
Landscapes
- 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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Description
Die Erfindung betrifft ein Mittel zur Entfernung von Schwer metall-Ionen aus Wässern. Weiterer Gegenstand der Erfindung sind Verwendungsformen dieses Mittels und verschiedene Einsatzgebiete.The invention relates to a means for removing heavy metal ions from water. Another object of the invention are uses of this product and various Areas of application.
Die in Wässern gelösten Schwermetall-Verbindungen stellen eine erhebliche Gefahr für die Umwelt dar. Die bekannten Ver fahren und Mittel zur Entfernung dieser Verbindungen sind überwiegend selektiv und ermöglichen somit keine weitgehende Entfernung aller in Wässern enthaltenen Schwermetall-Verbin dungen. Außerdem ist der apparative Aufwand sehr groß.Make the heavy metal compounds dissolved in water pose a significant risk to the environment. The known ver drive and are means of removing these connections predominantly selective and therefore do not allow extensive Removal of all heavy metal compounds contained in water fertilize. In addition, the expenditure on equipment is very great.
In DE 30 26 430 C2 ist ein Verfahren zur Abtrennung von in Abwasser gelösten Schwermetallen unter Verwendung der bei der Stahlherstellung anfallenden Konverter-, SM- oder Elektroofen- Schlacke mit einer Teilchengröße von 0,15 mm Durchmesser be schrieben. In der weiteren vorteilhaften Ausgestaltung dieses Verfahrens wird die Schlacke mit einer Lösung behandelt, die selbst Schwermetall-Verbindungen enthält, wodurch die Effek tivität (Adsorption) nicht nachteilig beeinflußt wird. Auch ist eine Säurebehandlung der eingesetzten Schlacke möglich.DE 30 26 430 C2 describes a method for separating from Heavy metals dissolved in the wastewater using the Steel, converter, SM or electric furnace Be slag with a particle size of 0.15 mm in diameter wrote. In the further advantageous embodiment of this The slag is treated with a solution that even contains heavy metal compounds, making the effec tivity (adsorption) is not adversely affected. Also acid treatment of the slag used is possible.
Nach der Beladung der eingesetzten Schlacke mit Schwermetall- Verbindungen wird diese abgetrennt und mit Portlandzement, Hochofenzement oder Gips zum Erhärten gebracht.After loading the slag used with heavy metal Connections is separated and covered with Portland cement, Blast furnace cement or gypsum hardened.
Nachteilig ist, daß das Abwasser auf einen pH-Wert < 7, teil weise sogar < 2, eingestellt werden muß, so daß die Anwendbar keit dieser Technologie sehr eingeschränkt ist.It is disadvantageous that the wastewater has a pH of <7 wise even <2, must be set so that the applicable This technology is very limited.
In DE 43 07 468 A1 ist ein Verfahren beschrieben, wonach Schwermetalle, insbesondere jedoch Uran, aus kontaminierten Wässern des Uran-Bergbaues entfernt werden. Hierzu wird ein beton- oder mörtelartiger Bauschutt verwendet, der als Abpro dukt bei der Sanierung dieser Industrie anfällt. Nachteilig ist, daß dieser Bauschutt selbst kontaminiert ist und somit nur eingeschränkt verwendet werden kann.DE 43 07 468 A1 describes a method according to which Heavy metals, but especially uranium, from contaminated Water from uranium mining can be removed. For this, a concrete or mortar-like rubble used as an abpro product in the renovation of this industry. The disadvantage is that this rubble is itself contaminated and can therefore only be used to a limited extent.
Aus der US-PS 40 12 320 ist bekannt, die Verunreinigungen in Abwässern durch Behandlung mit einer wäßrigen Lösung eines Alkalimetallsilicates und eines Silicat-Flockungsmittels aus der Gruppe Portlandzement, Kalk, Gips und Calciumchlorid zu entfernen.From US-PS 40 12 320 is known, the impurities in Waste water by treatment with an aqueous solution Alkali metal silicates and a silicate flocculant to the Portland cement, lime, gypsum and calcium chloride group remove.
Nachteilig ist die eingeschränkte Anwendbarkeit des Ver fahrens.The disadvantage is the limited applicability of the Ver driving.
Der Erfindung liegt das Problem zugrunde, mit einem einfach herzustellenden und preiswerten Mittel grober Struktur und guter Durchlässigkeit eine nahezu universelle Entfernung von Schwermetall-Ionen aus verschiedenen Wässern zu ermöglichen. Gleichzeitig soll der vorrichtungsmäßige Aufwand erheblich gesenkt werden.The invention addresses the problem with a simple means to produce and inexpensive rough structure and good permeability an almost universal removal of To enable heavy metal ions from various waters. At the same time, the device-related effort should be considerable be lowered.
Erfindungsgemäß wird das Problem mit den Merkmalen des Haupt anspruches gelöst.According to the invention, the problem with the features of the main claim solved.
Die Merkmale der Unteransprüche gestalten die Erfinder weiter aus.The inventors further develop the features of the subclaims out.
In den Nebenansprüchen sind die Verwendungsformen des erfindungsgemäßen Mittels und deren besondere Einsatzgebiete offen bart.In the dependent claims, the forms of use of the invention By means of and their special areas of application open beard.
Das erfindungsgemäße Mittel ermöglicht einen vielseitigen Einsatz in unterschiedlichen Verwendungsformen. Besonders vor teilhaft erfolgt die Verwendung zur Sanierung von Fließgewäs sern. Ein besonderer apparativer Aufwand ist hierzu nicht er forderlich. The agent according to the invention enables a versatile Use in different forms of use. Especially before Partial use is for the rehabilitation of flowing water ser. He does not require any special equipment conducive.
Die Körnung des erfindungsgemäßen Mittels kann in weiten Be reichen eingestellt werden. Gleichzeitig ist eine hohe Durch lässigkeit gegeben.The granulation of the agent according to the invention can vary widely range can be set. At the same time there is a high through given casualness.
Für einen Fachmann ist die erhebliche Reduzierung der Schwer metall-Ionen in Wässern mit einem derartigen Mittel überraschend.For a professional, the significant reduction is difficult metal ions in water with such an agent surprising.
Die Erfindung soll nachstehend an zwei Ausführungsbeispielen näher erläutert werden.The invention is based on two exemplary embodiments are explained in more detail.
Ein aus 60 Gew.-% Sand, 12,5 Gew.-% Zement, 10,0 Gew.-% gebranntem Kalk, 15,0 Gew.-% Soda und 2,5 Gew.-% Eisenspänen mit einer Körnung < 4,5 mm bestehendes Gemisch wird mit be kannten Technologien zu einem Granulat aufgearbeitet. Über dieses Granulat wird ein Abwasser geleitet, wonach eine Ent fernung der Schwermetall-Ionen in nachfolgender Tabelle er sichtlich ist:One made of 60% by weight sand, 12.5% by weight cement, 10.0% by weight quicklime, 15.0% by weight soda and 2.5% by weight iron shavings with a grain size <4.5 mm, be with known technologies processed into granules. over this granulate is sent to a waste water, after which a Ent Removal of heavy metal ions in the table below is obvious:
Tabelle 1Table 1
Ein nach bekannter Technologie hergestellter Schotter, be stehend aus 51 Gew.-% Kies, 18 Gew.-% Zement, 17 Gew.- Kalk, 7,5 Gew.-% Natriumhydrogencarbonat und 6,5 Gew.-% Eisen mit einer Körnung von < 2,5 mm wird als Schüttung in das Bett eines Fließgewässers eingebracht. Ebenso ist der Einsatz eines Granulates, das zu Kassetten oder Kartuschen geformt wird, möglich.A ballast manufactured using known technology, be standing from 51% by weight gravel, 18% by weight cement, 17% by weight lime, 7.5% by weight of sodium hydrogen carbonate and 6.5% by weight of iron a grain size of <2.5 mm is used as a bed in the bed Running water introduced. The use of a Granules, which are formed into cassettes or cartridges, possible.
Nach der Behandlung mit dem erfindungsgemäßen Mittel weist das
Fließgewässer folgende Schwermetall-Konzentrationen auf:
After treatment with the agent according to the invention, the flowing water has the following heavy metal concentrations:
Tabelle 2Table 2
Claims (7)
50 bis 80 Gew.-% Sand und/oder Kies
5 bis 30 Gew.-% Zement
5 bis 30 Gew.-% Kalk
1 bis 20 Gew.-% Natriumcarbonat
1 bis 20 Gew.-% Eisen-Körnung.1. Means for removing heavy metal ions from water, consisting of
50 to 80 wt .-% sand and / or gravel
5 to 30% by weight cement
5 to 30% by weight of lime
1 to 20% by weight sodium carbonate
1 to 20% by weight iron grit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997117723 DE19717723C2 (en) | 1997-04-18 | 1997-04-18 | Means for removing heavy metal ions from water, its uses and areas of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997117723 DE19717723C2 (en) | 1997-04-18 | 1997-04-18 | Means for removing heavy metal ions from water, its uses and areas of application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19717723A1 true DE19717723A1 (en) | 1998-10-22 |
| DE19717723C2 DE19717723C2 (en) | 2000-10-12 |
Family
ID=7827865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1997117723 Expired - Fee Related DE19717723C2 (en) | 1997-04-18 | 1997-04-18 | Means for removing heavy metal ions from water, its uses and areas of application |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19717723C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7247601B1 (en) | 1999-11-12 | 2007-07-24 | University Of Greenwich | Method for making silicate/aluminate sorbent |
| CN101757888B (en) * | 2009-12-10 | 2012-09-05 | 鲁东大学 | Use of desert fine sand for adsorbing metal ions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3717848A1 (en) * | 1987-05-27 | 1988-12-08 | Rwk Rhein Westfael Kalkwerke | Inorganic material and process for the production thereof |
| DE4307468A1 (en) * | 1993-03-10 | 1994-09-15 | Wismut Gmbh | Process for precipitation of heavy metals, uranium and toxic metals in the rehabilitation of mining installations, in particular from contaminated waters |
| WO1995029876A1 (en) * | 1994-04-29 | 1995-11-09 | Rhone-Poulenc Chimie | Heavy metal cation recovering agent including a silicate or aluminosilicate type compound or a carbonate type compound, and a carrier |
-
1997
- 1997-04-18 DE DE1997117723 patent/DE19717723C2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3717848A1 (en) * | 1987-05-27 | 1988-12-08 | Rwk Rhein Westfael Kalkwerke | Inorganic material and process for the production thereof |
| DE4307468A1 (en) * | 1993-03-10 | 1994-09-15 | Wismut Gmbh | Process for precipitation of heavy metals, uranium and toxic metals in the rehabilitation of mining installations, in particular from contaminated waters |
| WO1995029876A1 (en) * | 1994-04-29 | 1995-11-09 | Rhone-Poulenc Chimie | Heavy metal cation recovering agent including a silicate or aluminosilicate type compound or a carbonate type compound, and a carrier |
Non-Patent Citations (3)
| Title |
|---|
| H.Leismann, "Schwermetallentferung...", Wasser- wirtschaft-Wassertechnik 3(1992), S.135-136 * |
| JP 61-245885 (A), Patents Abstracts of Japan, C-412, 1987 Vol.11/No.96 * |
| JP 7-108280-A, Referat aus Patents Abstracts of Japan, Derwent Publications LTD, London, Ref. Nr. 95-190343/25 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7247601B1 (en) | 1999-11-12 | 2007-07-24 | University Of Greenwich | Method for making silicate/aluminate sorbent |
| CN101757888B (en) * | 2009-12-10 | 2012-09-05 | 鲁东大学 | Use of desert fine sand for adsorbing metal ions |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19717723C2 (en) | 2000-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: JUNGE, HARTMUT, DIPL.-ING., 12683 BERLIN, DE |
|
| 8339 | Ceased/non-payment of the annual fee |