[go: up one dir, main page]

WO2002004139A1 - Procede pour la purification in situ d'eaux chargees en matieres polluantes par des barrieres geochimiques en materiaux reactifs - Google Patents

Procede pour la purification in situ d'eaux chargees en matieres polluantes par des barrieres geochimiques en materiaux reactifs Download PDF

Info

Publication number
WO2002004139A1
WO2002004139A1 PCT/DE2001/002431 DE0102431W WO0204139A1 WO 2002004139 A1 WO2002004139 A1 WO 2002004139A1 DE 0102431 W DE0102431 W DE 0102431W WO 0204139 A1 WO0204139 A1 WO 0204139A1
Authority
WO
WIPO (PCT)
Prior art keywords
materials
water
coal
contaminated water
metals
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.)
Ceased
Application number
PCT/DE2001/002431
Other languages
German (de)
English (en)
Inventor
Jochen Schreyer
Ulf Jenk
Christoph Klinger
Udo Zimmermann
Eberhard Müller
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.)
Wismut GmbH
Original Assignee
Wismut GmbH
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 Wismut GmbH filed Critical Wismut GmbH
Publication of WO2002004139A1 publication Critical patent/WO2002004139A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/006—Radioactive compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • 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
    • 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
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities

Definitions

  • the invention relates to a method for in situ cleaning with pollutants such as heavy metals, metals, uranium, its natural decay products and nitroaromatics, contaminated water through geochemical barriers made of reactive materials.
  • pollutants such as heavy metals, metals, uranium, its natural decay products and nitroaromatics
  • the range of pollutants in these waters includes heavy metals, metals, nitroaromates and often uranium and its natural decay products.
  • Pilot projects are known which treat reactive mine water for the treatment of mine water as it flows underground, taking into account typical geochemical boundary conditions. rieren, especially systems with elemental iron, with a neutralizing and / or reducing effect.
  • the object of the invention is to develop an inexpensive, low-energy, long-term effective and natural process that guarantees permanent in-situ cleaning with pollutants such as heavy metals, metals, uranium, its natural decomposition products and nitroaromatics, contaminated water and the separation of pollutants, which the additional use of conventional processes or process steps is superfluous, the damage to ecosystems due to the escape of contaminated water into the environment is permanently prevented and no landfill of conventionally separated pollutants is required.
  • pollutants such as heavy metals, metals, uranium, its natural decomposition products and nitroaromatics
  • the object is achieved by a process for the in-situ cleaning of contaminated water by geochemical barriers made of reactive materials, that the water contaminated with pollutants such as heavy metals, metals, uranium, its natural decay products and nitroaromatics, by geochemical barriers which are present in and / or or technically created cavities are introduced into the flow paths of the waters and / or in technical facilities to which the waters are supplied, from a homogeneous mixture and / or in layers of or from ferrous materials, non-alloyed and / or low-alloyed iron materials and / or waste products and / or residues of metal processing manufacturing industry, and carbonaceous materials, brown coal, matt coal and / or bright coal, with a ratio of the mass fraction of the iron-containing materials to the mass fraction of the carbon-containing materials of 2: 1 to 1: 2, which are made of a homogeneous mixture and / or geochemical barriers created in layers have a water permeability coefficient of greater than 10 "2 m / s and
  • Non-alloyed and / or low-alloyed iron materials and / or waste products and / or residues from the metalworking industry with a bulk density of 0.3 t / m 3 to 2.0 t / m 3 , a piece length of up to 50 cm, are used as ferrous materials
  • the iron-containing materials lead to the formation of a low redox potential and a first step in raising the pH. In this process step, uranium is primarily removed.
  • the carbonaceous materials cause a further pH increase and thus the hydrolysis of iron and aluminum.
  • a number of heavy metals are excreted with the hydroxides.
  • further pollutants are sorptively bound to the carbonaceous materials.
  • the two reactive materials are used as a homogeneous mixture and / or in layers in the direction of flow in a hydraulic element, eg. B. a natural cavity, a stretch, a diaphragm wall or a container through which the water is passed, introduced and flowed through by the water to be cleaned.
  • a hydraulic element eg. B. a natural cavity, a stretch, a diaphragm wall or a container through which the water is passed, introduced and flowed through by the water to be cleaned.
  • the introduction of the two reactive materials is carried out taking into account the specifically occurring water so that the required reactivity is ensured with a sufficient flow.
  • a suitable ratio is used to set the required reactivity the mass fractions of the iron-containing materials to the mass fractions of the carbon-containing materials from 2: 1 to 1: 2, the geometry and the bulk densities of the reactive materials.
  • an iron-lignite mixture with a ratio of the mass fractions of iron which is used in the form of iron filings with a length of 1 cm to approx. 20 cm, to the mass fractions of lignite with a grain size of 0.5 cm to 2 cm of 1: 1 with a sulfuric acid mine water (1).
  • the flow through the column (2) - PVC column with a diameter of 30 cm and a filling height of approx. 60 cm - takes place under saturated conditions.
  • FIG. 1 shows the schematic structure of the standing column (2) of the underground test facility.
  • the mine water used (1) is characterized by the following parameters: pH value 2, Eh value 700 mV, sulfate 7200 mg / 1, iron 2200 mg / 1 and aluminum 280 mg / 1 and the heavy metals cobalt 2.5 mg / 1 , Nickel 5.2 mg / 1, copper 2.8 mg / 1, arsenic 3.5 mg / 1, lead 0.2 mg / 1, cadmium 0.6 mg / 1, chromium 0.9 mg / 1, uranium 75 mg / 1, radium 12 Bq / 1, nitro aromatics 0.1 mg / 1.
  • the dwell time of the pit water (1) during the test period was adjusted to the expected natural conditions and averages 5 days.
  • the percolate is fed through a gas-tight hose to a flow measuring cell (4), in which - just like in the mine water inlet - temperature, conductivity, pH value and redox potential are measured and sampled and analyzed at intervals and via a collecting container with overflow ( 5) derived.
  • the reaction gases are collected via separate collection devices, the gas bag (3).
  • Table 1 Fixed quantities based on the quantities supplied via the mine water inlet
  • the retention remained at approximately the same level throughout the test phase, i. H. the iron-lignite mixture used has a large retention capacity.
  • This example describes an underground experiment that realistically simulates the conditions of a pit.
  • the hydraulic and geochemical behavior of the iron-lignite mixture with a ratio of the mass fraction of iron to the mass fraction of lignite of 1: 1 is tested in a horizontal column (2).
  • the iron is used in the form of iron filings with a length of 1 cm to approx. 20 cm and the brown coal with a grain size of 1 cm to 4 cm.
  • FIG. 2 The schematic structure of the horizontal column is shown in FIG. 2.
  • the lying column (2) has a length of 2 m and a diameter of 0.5 m.
  • the hydraulic conditions thus correspond to the conditions in a staggered section and ensure a saturated flow through the iron-lignite mixture.
  • the percolation speed corresponds to a dwell time of the pit water of approx. 5 days.
  • the lying column (2) is flowed through with a pit water of the following parameters: pH value 3, Eh value 550 mV, sulfate 1800 mg / 1, iron 350 mg / 1, aluminum 70 mg / 1 and the heavy metals cobalt 0.4 mg / 1, nickel 1.0 mg / 1, copper 0.05 mg / 1, arsenic 0.3 mg / 1, cadmium 0.1 mg / 1, chromium 0.15 mg / 1, uranium 13 mg / 1.
  • the three installed tapping points (A, B, C) some of which serve as drains at the same time, enable several sampling options to determine the parameters of the percolate during or after the flow through the iron-lignite mixture. After a six-month test period, the present results, Table 2, show extensive separation of the pollutants contained in the mine water even under these realistic flow conditions.
  • Buffering the acid raises the pH from 3 to 4 to 6. Together with the reduction of the redox potential to an Eh value of -200 mV to -500 mV, environmental conditions are created that lead to the immobilization of heavy metals, arsenic, aluminum, nitroaroamten and natural radionuclides. Under the generated environmental conditions, water constituents can be sorbed onto the brown coal.
  • the resulting reaction gases are quantitatively captured and analyzed over the entire duration of the experiment using a gas bag (3). Over time, there is a tendency for the resulting gas quantities to decrease.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Soil Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention concerne un procédé pour la purification in situ d'eaux chargées en matières polluantes, telles que métaux lourds, métaux, uranium, ses produits de décomposition naturels et nitroaromatiques, par des barrières géochimiques constituées de matériaux réactifs. La purification des eaux chargées se fait par l'introduction appropriée de barrières géochimiques constituées d'un mélange homogène ou en couches de matériaux ferrifères, produits ferreux pas ou faiblement alliés, produits de récupération ou sous-produits de l'industrie transformatrice de métaux, et de matériaux carbonés, lignite, charbon mat ou charbon gazeux, dans un rapport des parties en masse des matériaux ferrifères aux parties en masse des matériaux carbonés compris entre 2: 1 et 1:2. L'invention vise à développer un procédé économique, exigeant peu d'énergie, à effet à long terme et écologique, qui garantisse la purification in situ durable d'eaux chargées en matières polluantes, telles que métaux lourds, métaux, uranium, ses produits de décomposition naturels et nitroaromatiques, et la séparation des matières polluantes, qui rende inutile l'utilisation supplémentaire de procédés ou d'étapes de procédés conventionnels, qui empêche durablement la dégradation d'écosystèmes par dégagement d'eaux contaminées dans l'environnement et qui ne nécessite pas de mise en décharge de matières polluantes séparées conventionnellement.
PCT/DE2001/002431 2000-07-07 2001-06-30 Procede pour la purification in situ d'eaux chargees en matieres polluantes par des barrieres geochimiques en materiaux reactifs Ceased WO2002004139A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033162.9 2000-07-07
DE2000133162 DE10033162C1 (de) 2000-07-07 2000-07-07 Verfahren zur in situ Reinigung schadstoffbelasteter Wässer durch geochemische Barrieren aus reaktiven Materialien

Publications (1)

Publication Number Publication Date
WO2002004139A1 true WO2002004139A1 (fr) 2002-01-17

Family

ID=7648198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/002431 Ceased WO2002004139A1 (fr) 2000-07-07 2001-06-30 Procede pour la purification in situ d'eaux chargees en matieres polluantes par des barrieres geochimiques en materiaux reactifs

Country Status (2)

Country Link
DE (1) DE10033162C1 (fr)
WO (1) WO2002004139A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101823801A (zh) * 2010-03-23 2010-09-08 中国地质大学（武汉） 一种原位修复高砷地下水的工艺
CN103739057A (zh) * 2014-01-21 2014-04-23 中国地质大学（武汉） 一种用于高砷地下水地区农村水井的除砷方法
PL442582A1 (pl) * 2022-10-19 2024-04-22 Politechnika Bydgoska Im. Jana I Jędrzeja Śniadeckich Aktywne podłoże zapobiegające migracji metali ciężkich, zwłaszcza do środowiska gruntowo-wodnego, sposób jego otrzymywania oraz jego zastosowanie

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238957B4 (de) * 2002-08-24 2005-12-01 Forschungszentrum Rossendorf Ev Verfahren zur Verringerung der Uran(VI)-Konzentration in fließenden Wässern
CN109794497A (zh) * 2019-01-17 2019-05-24 上海大学 一种生物炭促进富集植物吸收重金属的农田土壤修复方法
CN113493267B (zh) * 2020-04-01 2024-05-07 佛山市云米电器科技有限公司 一种家用净水装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5514279A (en) * 1991-03-04 1996-05-07 University Of Waterloo System for treating contaminated groundwater
US5534154A (en) * 1991-04-25 1996-07-09 University Of Waterloo System for cleaning contaminated soil
US5647991A (en) * 1994-10-11 1997-07-15 Tyler Pipe Company Method and apparatus for treatment of contaminated water using waste shot blast fines
DE19606947A1 (de) * 1996-02-23 1997-08-28 Franz Dietrich Dipl Ing Oeste in-situ Reaktionswände aus Formstoffen und Anwendung derselben
DE10017618A1 (de) * 1999-03-31 2001-05-17 Ufz Leipzighalle Gmbh Verfahren zur Konditionierung von mit Halogenkohlenwasserstoffen belasteten Wässern

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD223076A1 (de) * 1984-04-02 1985-06-05 Univ Halle Wittenberg Kohlenstoffhaltiges adsorbens und verfahren zu seiner herstellung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5514279A (en) * 1991-03-04 1996-05-07 University Of Waterloo System for treating contaminated groundwater
US5534154A (en) * 1991-04-25 1996-07-09 University Of Waterloo System for cleaning contaminated soil
US5647991A (en) * 1994-10-11 1997-07-15 Tyler Pipe Company Method and apparatus for treatment of contaminated water using waste shot blast fines
DE19606947A1 (de) * 1996-02-23 1997-08-28 Franz Dietrich Dipl Ing Oeste in-situ Reaktionswände aus Formstoffen und Anwendung derselben
DE10017618A1 (de) * 1999-03-31 2001-05-17 Ufz Leipzighalle Gmbh Verfahren zur Konditionierung von mit Halogenkohlenwasserstoffen belasteten Wässern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101823801A (zh) * 2010-03-23 2010-09-08 中国地质大学（武汉） 一种原位修复高砷地下水的工艺
CN103739057A (zh) * 2014-01-21 2014-04-23 中国地质大学（武汉） 一种用于高砷地下水地区农村水井的除砷方法
PL442582A1 (pl) * 2022-10-19 2024-04-22 Politechnika Bydgoska Im. Jana I Jędrzeja Śniadeckich Aktywne podłoże zapobiegające migracji metali ciężkich, zwłaszcza do środowiska gruntowo-wodnego, sposób jego otrzymywania oraz jego zastosowanie
PL246892B1 (pl) * 2022-10-19 2025-03-24 Politechnika Bydgoska Im Jana I Jedrzeja Sniadeckich Aktywne podłoże zapobiegające migracji metali ciężkich, zwłaszcza do środowiska gruntowo-wodnego, sposób jego otrzymywania oraz jego zastosowanie

Also Published As

Publication number Publication date
DE10033162C1 (de) 2002-01-10

Similar Documents

Publication Publication Date Title
Machemer et al. Adsorption compared with sulfide precipitation as metal removal processes from acid mine drainage in a constructed wetland
Ko et al. Field assessment of arsenic immobilization in soil amended with iron rich acid mine drainage sludge
Takeda et al. Accumulation of uranium derived from long-term fertilizer applications in a cultivated Andisol
Galhardi et al. Natural radionuclides in plants, soils and sediments affected by U-rich coal mining activities in Brazil
Achterberg et al. Impact of Los Frailes mine spill on riverine, estuarine and coastal waters in southern Spain
Fernandez-Calvino et al. Heavy metals fractionation and desorption in pine bark amended mine soils
Chen et al. Zinc pollution in zones dominated by algae and submerged macrophytes in Lake Taihu
Malaj et al. Near-shore distribution of heavy metals in the Albanian part of Lake Ohrid
Burghardt et al. Development of a reactive zone technology for simultaneous in situ immobilisation of radium and uranium
Nowack et al. Metal fractionation in a contaminated soil after reforestation: Temporal changes versus spatial variability
DE10033162C1 (de) Verfahren zur in situ Reinigung schadstoffbelasteter Wässer durch geochemische Barrieren aus reaktiven Materialien
Korça et al. Assessment of contamination with heavy metals in environment: Water, sterile, sludge and soil around kishnica landfill, kosovo
Mansfeldt et al. Cyanides in a soil of a former coking plant site
Łuczkiewicz Soil and groundwater contamination as a result of sewage sludge land application.
Yu et al. Arsenic removal from contaminated brackish sea water by sorption onto Al hydroxides and Fe phases mobilized by land-use
Wen et al. Migration mechanism of PTEs in polymetallic mines under pioneer phytoremediation: A Lanmuchang mercury-thallium mine perspective
Doyle et al. Geochemical controls on mobilization of metals from a 100-year-old waste rock pile and implications for selection of cover amendments
Liang et al. Minerals and mine drainage
Bosco et al. A chemical speciation study of selected heavy metals in aquatic bottom sediment samples from Mpenge stream, Musanze District, Rwanda
Gunesegeran et al. Acid mine drainage and heavy metals contamination of abandoned and active mine site at Old Repas Dam in Bentong, Pahang, Malaysia
Clevenger et al. Mobility of lead in mine tailings due to landfill leachate
Malinowska Zinc speciation in soil under various rates of sewage sludge and liming
Merdy et al. 5 Years of Leaching Experiments to Evaluate Land Spreading of a Modified Bauxite Residue Before and After Treatment of Acid Mine Drainage: Sand or Soil Capping and Revegetation
Oing Suitability of processed dredged material from the Hamburg harbor for dike construction
Shehu et al. Phytoremediation of cadmium-polluted soils with Ipomoea asarifolia (Desr.) Roem. & Schult

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BG CZ HU KZ PL RO RU UZ

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase