DE4011174C1 - Reducing amt. of drainage water from refuse tip - by inserting electrodes of graphite fabric at base and upper levels of tip and supplying current - Google Patents
Reducing amt. of drainage water from refuse tip - by inserting electrodes of graphite fabric at base and upper levels of tip and supplying currentInfo
- Publication number
- DE4011174C1 DE4011174C1 DE19904011174 DE4011174A DE4011174C1 DE 4011174 C1 DE4011174 C1 DE 4011174C1 DE 19904011174 DE19904011174 DE 19904011174 DE 4011174 A DE4011174 A DE 4011174A DE 4011174 C1 DE4011174 C1 DE 4011174C1
- Authority
- DE
- Germany
- Prior art keywords
- tip
- electrodes
- reducing
- amt
- base
- 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.)
- Expired - Fee Related
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 5
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 5
- 239000010439 graphite Substances 0.000 title claims abstract description 5
- 239000004744 fabric Substances 0.000 title claims abstract description 4
- 239000003657 drainage water Substances 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000015556 catabolic process Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 5
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 210000003608 fece Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010871 livestock manure Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Verminderung des Sickerwasseranfalls auf in Betrieb befindlichen oder bereits verfüllten Mülldeponien unter gleichzeitiger Durchleitung von Sauerstoff zum aeroben Abbau der Abfallstoffe.The invention relates to a method for reduction of the seepage water accumulation on those in operation or landfills that have already been filled simultaneous passage of oxygen to the aerobic Breakdown of waste materials.
Auf Hausmülldeponien, ob noch in Betrieb oder bereits stillgelegt, fallen insbesondere durch Niederschlage Sickerwässer an, die entweder im Erdreich versickern und eine Gefahr für das Grundwasser bedeuten, oder über eine Basisabdichtung und Drainagen nach außen abgeleitet werden.On landfill sites, whether still in operation or already shut down, especially due to rainfall Leachate that either seeps into the ground and pose a danger to the groundwater, or via a base seal and drainage to the outside be derived.
Die Sickerwässer aus Hausmülldeponien sind mit einer Vielzahl von Stoffen zum Teil hochbelastet. Eine Behandlung vor der Einleitung in ein Gewässer ist daher unabdingbar, da sie vor allem organische Stoffe und Schwermetalle enthalten. Diese Behandlung erfolgt meist in Kläranlagen und ist wegen der hohen Belastung und den hohen Anforderungen an die Abwasserreinigung sehr aufwendig.The leachate from household waste landfills is with a A large number of substances, some of which are highly stressed. A Treatment before being discharged into a body of water therefore indispensable since they are mainly organic substances and contain heavy metals. This treatment is done mostly in sewage treatment plants and is because of the high load and the high demands on wastewater treatment very complex.
Die Sickerwassermengen lassen sich zwar durch eine wasserdichte Abdeckung der Deponien verringern, aber nicht ganz vermeiden. The amounts of leachate can be reduce watertight coverage of landfills, however not avoid entirely.
Vorteilhaft sind diese Abdeckungen vor allem dann, wenn sie die Erfassung und Nutzung der methanhaltigen Deponiegase ermöglichen.These covers are particularly advantageous if they capture and use the methane Enable landfill gases.
Um den aeroben Abbau der organischen Substanzen in den Abfällen zu beschleunigen. wird gelegentlich in den Deponiekörper Luft oder auch Sauerstoff eingepreßt. Diese Maßnahme führt jedoch zu einer Vergrößerung der Sickerwassermenge. da sich bei der Oxidation der organischen Verbindungen neben Kohlendioxid auch Wasser bildet.To reduce the aerobic degradation of organic substances in the Accelerate waste. is occasionally used in the Landfill body air or oxygen injected. However, this measure leads to an increase in Leachate volume. since the oxidation of the organic compounds in addition to carbon dioxide Water forms.
Aus der EP 01 09 349-A1 ist ein Verfahren zum Behandeln von Flüssigmist bekannt, bei dem zur Vermeidung einer Volumenvergrößerung durch Zersetzungsprozesse eine Elektrodenschaltung in den Flüssigmist eingebracht und eine Gleichspannung angelegt wird, die nur bewirken soll, daß von der Kupferanode Kupferionen in den Flüssigmist übergehen. Der Sickerwasseranfall von Mülldeponien läßt sich auf diese Weise nicht reduzieren.EP 01 09 349-A1 describes a method for Treating liquid manure known in the Avoiding an increase in volume through Decomposition processes an electrode circuit in the Liquid manure introduced and a DC voltage is created, which should only cause that of the Copper anode Pass copper ions into the liquid manure. The leachate from landfills can be opened up not reduce this way.
Die US 41 61 435-A beschreibt einen elektrochemischen Prozeß zur Verminderung von Verunreinigungen in wäßrigen Elektrolyten durch Einbringen von Elektroden und Anlegen einer elektrischen Spannung. Auch hier gibt es keine Beziehung zur Verminderung des Sickerwasseranfalls in Mülldeponien.US 41 61 435-A describes an electrochemical Process for reducing pollution in aqueous electrolytes by introducing electrodes and applying an electrical voltage. Here too there is no relationship to diminishing the Leachate in landfills.
Das gleiche gilt auch für die Literaturstelle "Deponie-Ablagerung von Abfällen" von K.J. Thone-Kozmiensky, EF-Verlag für Energie- und Umwelttechnik. Berlin 1987, Seite 614-619 und 632 bis 636, wo über Entgasungstechniken und Deponiegasnutzung in Mülldeponien berichtet wird.The same applies to the literature "Landfill Deposition of Waste" by K.J. Thone-Kozmiensky, EF publishing house for energy and Environmental engineering. Berlin 1987, pages 614-619 and 632 to 636, where about degassing techniques and Landfill gas usage in landfills is reported.
Es war daher Aufgabe der Erfindung ein Verfahren zur Verminderung des Sickerwasseranfalls auf in Betrieb befindlichen oder bereits verfüllten Mülldeponien unter gleichzeitiger Durchleitung von Sauerstoff zum aeroben Abbau der Abfallstoffe zu entwickeln, das auch die Schadstoffe im Sickerwasser minimiert und die nutzbare Deponiegasmenge vermehrt.It was therefore an object of the invention to provide a method for Reduction of seepage water in operation existing or already filled landfills with simultaneous passage of oxygen to the to develop aerobic degradation of waste materials, too minimizes the pollutants in the leachate and the usable landfill gas volume increased.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst daß auf der Deponiebasis oberhalb der Deponieabdichtung Elektroden angebracht sind und das mit Schadstoffen angereicherte Sickerwasser elektrolytisch zersetzt wird.This object is achieved in that on the landfill base above the landfill seal Electrodes are attached and that with pollutants enriched leachate decomposes electrolytically becomes.
Vorzugsweise werden die Elektroden waagrecht verlegt und bestehen vorteilhafterweise aus Graphit. Besonders bewährt hat sich Graphitgewebe. Dabei werden die Elektroden bzw. Gewebestreifen abwechselnd als Kathoden und Anoden geschaltet und mit Gleichstrom beaufschlagt. The electrodes are preferably laid horizontally and advantageously consist of graphite. Especially Graphite fabric has proven itself. The Electrodes or tissue strips alternately as Cathodes and anodes switched and with direct current acted upon.
Durch die Belastung der Sickerwässer mit anorganischen Salzen sind jene genügend elektrisch leitfähig, um elektrolytisch zersetzt zu werden.By contaminating the leachate with inorganic Salts are electrically conductive enough to those to be decomposed electrolytically.
Der an der Anode entstehende Sauerstoff baut in statu nascendi die im Sickerwasser enthaltenen organischen Substanzen ab; der überschüssige Sauerstoff diffundiert durch den Deponiekörper und oxidiert dort die abbaubaren Stoffe unter Bildung von Kohlendioxid.The oxygen generated at the anode builds up in statu nascendi the organic contained in the leachate Substances off; the excess oxygen diffuses through the landfill body and oxidizes there the degradable substances with the formation of carbon dioxide.
Der kathodisch gebildete Wasserstoff kann entweder direkt an der Kathode aufgefangen und abgeleitet werden oder er wandert durch den Deponiekörper nach oben und kann dort zusammen mit dem übrigen Deponiegas, einem CO2/CH4-Gemisch, genutzt werden.The cathodically formed hydrogen can either be collected and discharged directly at the cathode or it migrates upwards through the landfill body and can be used there together with the rest of the landfill gas, a CO 2 / CH 4 mixture.
Die Anoden werden vorzugsweise waagrecht verlegt, um den entstehenden Sauerstoff über die Fläche zu verteilen. Die Kathode kann ebenfalls waagrecht verlegt werden. Dies ist insbesondere dann sinnvoll, wenn nach einer gewissen Betriebsdauer Anode und Kathode getauscht werden sollen, um auch die Stoffe zu oxidieren, die im Bereich der Kathode lagern.The anodes are preferably laid horizontally in order to the resulting oxygen over the area to distribute. The cathode can also be horizontal be relocated. This is particularly useful if if after a certain period of operation the anode and Cathode should be exchanged to also the substances oxidize, which are stored in the area of the cathode.
Da bei fehlendem Sickerwasser der Stromfluß unterbrochen wird, entfällt eine diesbezügliche Regelung. Bei Bedarf ist es selbstverständlich möglich, fehlendes Sickerwasser z. B. durch Berieselung der Deponie zu ergänzen. Since the flow of electricity in the absence of leachate is interrupted, there is no relevant Regulation. If necessary, it goes without saying possible missing leachate z. B. by sprinkling to complete the landfill.
Besonders vorteilhaft ist das erfindungsgemäße Verfahren, wenn die Elektroden auf einer Bodenabdichtung liegen, wie sie bei neuen Deponien vorgesehen sind oder aber auch im Rahmen von Sanierungsmaßnahmen nachträglich eingebracht werden können. Sind derartige Bodenabdichtungen vorhanden, kann durch das erfindungsgemäße Verfahren fast jeglicher Sickerwasseranfall unterbunden werden.The invention is particularly advantageous Procedure when the electrodes are on a Soil sealing, as in new landfills are provided or also within the framework of Remedial measures are introduced subsequently can. If such floor seals are available, can almost by the inventive method any seepage water can be prevented.
Das erfindungsgemäße Verfahren ist auch für Abfalldeponien, auf denen kommunale oder industrielle Klärschlämme abgelagert werden, gut geeignet. Hier werden sogar lösliche Metallsalze durch den Wasserstoff in unlösliche Verbindungen überführt.The method according to the invention is also for Landfills where municipal or industrial Sewage sludge is deposited, well suited. Here are even soluble metal salts by the Hydrogen converted into insoluble compounds.
Der zur Elektrolyse benötigte Gleichstrom kann zum Teil über Solarzellen bereitgestellt werden.The direct current required for electrolysis can be used for Part will be provided via solar cells.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904011174 DE4011174C1 (en) | 1990-04-06 | 1990-04-06 | Reducing amt. of drainage water from refuse tip - by inserting electrodes of graphite fabric at base and upper levels of tip and supplying current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904011174 DE4011174C1 (en) | 1990-04-06 | 1990-04-06 | Reducing amt. of drainage water from refuse tip - by inserting electrodes of graphite fabric at base and upper levels of tip and supplying current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4011174C1 true DE4011174C1 (en) | 1991-08-29 |
Family
ID=6403910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19904011174 Expired - Fee Related DE4011174C1 (en) | 1990-04-06 | 1990-04-06 | Reducing amt. of drainage water from refuse tip - by inserting electrodes of graphite fabric at base and upper levels of tip and supplying current |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4011174C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0812631A1 (en) * | 1996-06-13 | 1997-12-17 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method of in-situ decontamination of a polluted soil portion by means of microorganisms |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161435A (en) * | 1977-10-13 | 1979-07-17 | Innova, Inc. | Process and apparatus for reducing the level of contaminants in aqueous electrolytes containing the same |
| EP0109349A1 (en) * | 1982-11-13 | 1984-05-23 | Wolfgang Prof. Dr. Müller | Method of treating liquid manure |
-
1990
- 1990-04-06 DE DE19904011174 patent/DE4011174C1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161435A (en) * | 1977-10-13 | 1979-07-17 | Innova, Inc. | Process and apparatus for reducing the level of contaminants in aqueous electrolytes containing the same |
| EP0109349A1 (en) * | 1982-11-13 | 1984-05-23 | Wolfgang Prof. Dr. Müller | Method of treating liquid manure |
Non-Patent Citations (1)
| Title |
|---|
| THOME-KOZMIENSKY, Karl J., Hrsg.: Deponie - Ab- lagerung von Abfällen, EF-Verlag für Energie- u. Umwelttechnik, Berlin 1987, S. 614-619, 632- 636 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0812631A1 (en) * | 1996-06-13 | 1997-12-17 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method of in-situ decontamination of a polluted soil portion by means of microorganisms |
| NL1003327C2 (en) * | 1996-06-13 | 1997-12-17 | Tno | Method for in-situ cleaning of contaminated soil with the aid of micro-organisms. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |