WO2003068385A1 - Adsorbant pour traitement d'eau benefique pour le traitement de l'eau potable - Google Patents

Adsorbant pour traitement d'eau benefique pour le traitement de l'eau potable Download PDF

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Publication number
WO2003068385A1
WO2003068385A1 PCT/HU2002/000036 HU0200036W WO03068385A1 WO 2003068385 A1 WO2003068385 A1 WO 2003068385A1 HU 0200036 W HU0200036 W HU 0200036W WO 03068385 A1 WO03068385 A1 WO 03068385A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
boehmite
pseudo
mass
treatment
Prior art date
Application number
PCT/HU2002/000036
Other languages
English (en)
Inventor
Mihály TÖRÖCSIK
Original Assignee
REZES, Zoltán
CSAPLÁROS, László
STOCKBURGER, Hermann, Andreas
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 REZES, Zoltán, CSAPLÁROS, László, STOCKBURGER, Hermann, Andreas filed Critical REZES, Zoltán
Priority to AU2002302862A priority Critical patent/AU2002302862A1/en
Publication of WO2003068385A1 publication Critical patent/WO2003068385A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041—Oxides or hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/103—Arsenic 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

Definitions

  • the water e. g. ground water, well water, as well as the potable waters can be often
  • radioactive isotopes their content of bacteria is often higher than permissible.
  • the toxic compounds containing heavy metals like those of lead, cadmium, as well as
  • radioactive isotopes like those of caesium, cerium and strontium entering water or
  • potable water can endanger living beings.
  • the medicinal waters and the thermal ones are often waters with arsenic content at the
  • Arsenic compounds can be present in the concentration of 0.05 to 0.1 mg/1 in the
  • potable water for humans 0.05 to 0.2 mg/1 for animals and 2 to 10 mg/1 for watering
  • Lead enters the ah thiough burning of petrol with lead content in motorcars. It
  • Water of wells in contaminated areas can contain in addition to compounds of lead
  • Radioactive isotopes enter the soil respectively water of wells as result of improper
  • the known adsorbents or filter inserts are able to bind the above-mentioned
  • German patent specification of No. 3 248 126 describes an apparatus to improve
  • ion exchanging resin or adsorbent has not complex adsorbing capability and their
  • Our target is to develop an adsorbent or a mixture of adsorbents, which used as insert
  • quartz-sand are excellently applicable to extract the said contaminants from water, as
  • the pseudo-boehmite is produced from alkali solution of sodium aluminate
  • hydroxide is obtained in this way, which comprises 20 to 24 mass % of water bound as
  • the grain size of pseudo-boehmite obtained in this manner is between 0.001 and 0.1
  • mm preferably between 0.01 and 0.1 mm.
  • An adsorbent of extraordinarily high adsorbing capacity can be produced, if the
  • washed product of treatment with carbon dioxide is subjected to heat treatment at a
  • the carbonate contamination of adsorbent is namely
  • the heat treatment at the temperature from 110 to 125 C° is performed preferably
  • the compound produced in this way is a pseudo-boehmite based on aluminium oxide-
  • hydroxide which comprises 20 to 24 mass % of water bound as ciystal water, 0.01 to
  • furtlier more optionally Si0 2 and A1 2 0 3 in quantity necessary to the 100 mass %.
  • the pseudo-boehmite produced by the method according to the invention is a weekly-
  • treatment preferably for treatment of potable water, which has the following
  • pseudo-boehmite optionally a mixture thereof with clinoptilolite and 20 to 80 mass
  • the above-described adsorbent is suitable for usage as insert of water treating
  • alumina production is loaded into a reactor then carbon dioxide gas is leaded in until
  • the settled material is filtered, washed with water then mixed into sludge with water.
  • the sludge is reloaded into the reactor and carbon dioxide gas is leaded again into it
  • the settled product is heat treated at a temperature of 80 to 90 C° during 30 minutes
  • the washed product is mixed with water again into sludge then filtered and washed.
  • the product obtamed in this manner is a fine loose powder, which has large specific
  • pseudo-boehmite The physical and physio-chemical properties of pseudo-boehmite are:
  • the amorphous material has the highest
  • the pseudo-boehmite is less soluble, gibbsite is the least soluble.
  • the pH was set to 7.24, the solution samples were shaken until the highest binding capacity was reached and the arsenic adsorbing capability of the
  • the solutions were prepared by dissolution of As 2 0 3 in water.
  • the cadmium binding capability of the adsorbent was tested.
  • sample solutions were prepared by dissolution of Cd(N0 3 ) 2 4H 2 0 in water.
  • Amounts of 1 g of adsorbent were added to those of 20 ml of sample solutions and the
  • the pH value of solution samples was 8.28.
  • the pH value of solution samples was 8.28.
  • Example 7 is repeated with SrCl test solution containing Sr ++ isotope ions.
  • Example 2 and 50 g of clinoptilolite was tested.
  • a suspension was prepared from the cells in sterilised tap water so that the extinction
  • a filling consisting of 300 kg of quartz sand and gravel and 50 kg of pseudo-boehmite
  • the water to be treated is water with As content of 72.87 ⁇ g/1.
  • the whole quantity of heated water was 67.16 m 3 .
  • the treated water was lead into clear water basin through pipe 2.
  • the arsenic content of the heated water was then measured. It was reduced to 22.37

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention concerne un adsorbant pour le traitement de l'eau bénéfique pour le traitement de l'eau potable. L'adsorbant de cette invention est une pseudo-boehmite sur la base d'un oxyde-hydroxyde d'aluminium constitué d'eau entre 20 et 24 % en masse liée sous forme d'eau cristalline, entre 0,01 et 0,4 % en masse d'oxyde de métal, notamment Na2O, Fe2O3 et CaO, MgO si besoin, et éventuellement entre 0,01 et 0,1 % en masse de SiO2 et A12O3 en quantité suffisante pour présenter 100 % en masse, ou sa variante thermo-traitée à une température allant de 110 à 125 ° C, ou un mélange de 80 à 20 unités de masse de la pseudo-boehmite susmentionnée et entre 20 et 80 unités de masse de clinoptilolite ou un mélange de 80 à 20 unités de masse de pseudo-boehmite et éventuellement son mélange avec une clinoptilolite et entre 20 et 80 unités de masse de sable de quartz avec du gravier.
PCT/HU2002/000036 2002-01-29 2002-04-30 Adsorbant pour traitement d'eau benefique pour le traitement de l'eau potable WO2003068385A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002302862A AU2002302862A1 (en) 2002-01-29 2002-04-30 Adsorbent for water treatment advantageously for treatment of potable water

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP0200307 2002-01-29
HU0200307A HUP0200307A2 (hu) 2002-01-29 2002-01-29 Víztisztításra, előnyösen ivóvíz tisztítására alkalmas adszorbens

Publications (1)

Publication Number Publication Date
WO2003068385A1 true WO2003068385A1 (fr) 2003-08-21

Family

ID=89980106

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2002/000036 WO2003068385A1 (fr) 2002-01-29 2002-04-30 Adsorbant pour traitement d'eau benefique pour le traitement de l'eau potable

Country Status (3)

Country Link
AU (1) AU2002302862A1 (fr)
HU (1) HUP0200307A2 (fr)
WO (1) WO2003068385A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2127740A1 (fr) * 2007-01-09 2009-12-02 Badulin, Nikolay Aleksandrovich Procédé de décontamination d'eau contenant des ions de métaux lourds
CN102641725A (zh) * 2012-05-11 2012-08-22 上海绿帝环保科技有限公司 一种用于吸附重金属的材料的制备方法
RU2481273C1 (ru) * 2011-09-14 2013-05-10 Государственное научное учреждение Всероссийский научно-исследовательский технологический институт ремонта и эксплуатации машинно-тракторного парка Российской академии сельскохозяйственных наук (ГНУ ГОСНИТИ РОССЕЛЬХОЗАКАДЕМИИ) Способ очистки бытовых сточных вод, содержащих органические загрязнения

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268295A (en) * 1961-10-06 1966-08-23 Reynolds Metals Co Alumina hydrate and its method of preparation
US3739062A (en) * 1970-10-05 1973-06-12 Kaiser Aluminium Chem Corp Direct conversion of dawsonite to pseudoboehmite
US4157382A (en) * 1978-04-21 1979-06-05 Aluminum Company Of America Process for preparing low soda pseudoboehmite gel
EP0147167A2 (fr) * 1983-12-22 1985-07-03 Aluminum Company Of America Procédé continu pour la neutralisation de solution d'aluminate pour préparer des gels et appareil utilisé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268295A (en) * 1961-10-06 1966-08-23 Reynolds Metals Co Alumina hydrate and its method of preparation
US3739062A (en) * 1970-10-05 1973-06-12 Kaiser Aluminium Chem Corp Direct conversion of dawsonite to pseudoboehmite
US4157382A (en) * 1978-04-21 1979-06-05 Aluminum Company Of America Process for preparing low soda pseudoboehmite gel
EP0147167A2 (fr) * 1983-12-22 1985-07-03 Aluminum Company Of America Procédé continu pour la neutralisation de solution d'aluminate pour préparer des gels et appareil utilisé

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2127740A1 (fr) * 2007-01-09 2009-12-02 Badulin, Nikolay Aleksandrovich Procédé de décontamination d'eau contenant des ions de métaux lourds
EP2127740A4 (fr) * 2007-01-09 2011-06-08 Badulin Nikolay Aleksandrovich Procédé de décontamination d'eau contenant des ions de métaux lourds
RU2481273C1 (ru) * 2011-09-14 2013-05-10 Государственное научное учреждение Всероссийский научно-исследовательский технологический институт ремонта и эксплуатации машинно-тракторного парка Российской академии сельскохозяйственных наук (ГНУ ГОСНИТИ РОССЕЛЬХОЗАКАДЕМИИ) Способ очистки бытовых сточных вод, содержащих органические загрязнения
CN102641725A (zh) * 2012-05-11 2012-08-22 上海绿帝环保科技有限公司 一种用于吸附重金属的材料的制备方法

Also Published As

Publication number Publication date
HU0200307D0 (en) 2002-03-28
AU2002302862A1 (en) 2003-09-04
HUP0200307A2 (hu) 2004-01-28

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