RU98116736A - METHOD FOR PROCESSING WATER CONTAINING IONS OF HEAVY METALS - Google Patents

METHOD FOR PROCESSING WATER CONTAINING IONS OF HEAVY METALS

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Publication number
RU98116736A
RU98116736A RU98116736/12A RU98116736A RU98116736A RU 98116736 A RU98116736 A RU 98116736A RU 98116736/12 A RU98116736/12 A RU 98116736/12A RU 98116736 A RU98116736 A RU 98116736A RU 98116736 A RU98116736 A RU 98116736A
Authority
RU
Russia
Prior art keywords
sulfide
metal
wastewater
paragraphs
sulfate
Prior art date
Application number
RU98116736/12A
Other languages
Russian (ru)
Other versions
RU2178391C2 (en
Inventor
Сес Ян Нико Бейсман
Хенк Дейкман
Original Assignee
Тиопак Сулфур Системс Б.В.
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
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Application filed by Тиопак Сулфур Системс Б.В. filed Critical Тиопак Сулфур Системс Б.В.
Publication of RU98116736A publication Critical patent/RU98116736A/en
Application granted granted Critical
Publication of RU2178391C2 publication Critical patent/RU2178391C2/en

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Claims (10)

1. Способ удаления ионов тяжелых металлов из металлосодержащих сточных вод и удаления сульфата из сульфатосодержащих сточных вод, в котором сульфат биологически восстанавливают до сульфида, используя водород, окись углерода или спирт в качестве электронного донора, сульфид вступает в реакцию с ионами металлов, образуя сульфиды металлов, и полученные сульфиды металлов отделяют от сточных вод, отличающийся тем, что биологически полученный сульфид вновь добавляют к металлосодержащим сточным водам и сульфиды металлов отделяют до биологического восстановления сульфата.1. A method for removing heavy metal ions from metal-containing wastewater and removing sulfate from sulfate-containing wastewater, in which sulfate is biologically reduced to sulfide using hydrogen, carbon monoxide or alcohol as an electron donor, sulfide reacts with metal ions to form metal sulfides , and the obtained metal sulfides are separated from the wastewater, characterized in that the biologically obtained sulfide is again added to the metal-containing wastewater and the metal sulfides are separated to a biological Skog sulphate reduction. 2. Способ по п. 1, в котором металлосодержащая сточная вода и сульфатосодержащая сточная вода представляют собой один поток. 2. The method according to p. 1, in which the metal-containing wastewater and sulfate-containing wastewater are one stream. 3. Способ по п. 1 или 2, в котором водород используют в качестве электронного донора для биологического восстановления. 3. The method according to p. 1 or 2, in which hydrogen is used as an electronic donor for biological recovery. 4. Способ по любому из пп. 1-3, в котором сульфид подвергают рециркуляции в виде жидкости, содержащей сульфид. 4. The method according to any one of paragraphs. 1-3, in which the sulfide is recycled in the form of a liquid containing sulfide. 5. Способ по любому из пп. 1-3, в котором сульфид подвергают рециркуляции в виде газообразного сероводорода. 5. The method according to any one of paragraphs. 1-3, in which the sulfide is recycled in the form of gaseous hydrogen sulfide. 6. Способ по п. 5, в котором водород используют в качестве газа-носителя для сероводорода. 6. The method according to p. 5, in which hydrogen is used as a carrier gas for hydrogen sulfide. 7. Способ по любому из пп. 1-6, в котором сульфид вновь добавляют к металлосодержащим сточным водам в двух или более точках, каждая из которых имеет различную рН и за каждой из которых следует стадия отделения сульфида металлов. 7. The method according to any one of paragraphs. 1-6, in which the sulfide is again added to the metal-containing wastewater at two or more points, each of which has a different pH and each of which is followed by the stage of separation of metal sulfide. 8. Способ по любому из пп. 1-7, в котором остаточный сульфид окисляют до элементарной серы, а элементарную серу отделяют для получения десульфурированных сточных вод. 8. The method according to any one of paragraphs. 1-7, in which the residual sulfide is oxidized to elemental sulfur, and elemental sulfur is separated to obtain desulfurized wastewater. 9. Способ по любому из пп. 1-7, в котором сточная вода содержит избыточное количество сульфата по отношению к тяжелым металлам, и соль тяжелого металла добавляют для получения по существу стехиометрического уровня сульфата и тяжелого металла. 9. The method according to any one of paragraphs. 1-7, in which the wastewater contains excess sulfate with respect to heavy metals, and a heavy metal salt is added to obtain a substantially stoichiometric level of sulfate and heavy metal. 10. Способ по любому из пп. 1-9, в котором часть десульфурированной сточной воды вновь добавляют к металлосодержащей сточной воде. 10. The method according to any one of paragraphs. 1-9, in which part of the desulfurized wastewater is again added to the metal-containing wastewater.
RU98116736/12A 1996-02-06 1997-02-06 Method of treating water containing heavy metal ions RU2178391C2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP96200259.8 1996-02-06
EP96200259 1996-02-06
EP96201427.0 1996-05-20
EP96201427 1996-05-20

Publications (2)

Publication Number Publication Date
RU98116736A true RU98116736A (en) 2000-07-20
RU2178391C2 RU2178391C2 (en) 2002-01-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU98116736/12A RU2178391C2 (en) 1996-02-06 1997-02-06 Method of treating water containing heavy metal ions

Country Status (8)

Country Link
EP (1) EP0880475B1 (en)
CN (1) CN1086366C (en)
AT (1) ATE207453T1 (en)
AU (1) AU719886B2 (en)
DE (1) DE69707646T2 (en)
ES (1) ES2162241T3 (en)
RU (1) RU2178391C2 (en)
WO (1) WO1997029055A1 (en)

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CN105969715A (en) * 2016-05-30 2016-09-28 青岛理工大学 Method for preparing efficient ecological restoration floras for Cd contaminated site from sludge
PL3478863T3 (en) 2016-07-04 2022-03-28 Paques I.P. B.V. Recovery of heavy metals by selective precipitation
CN106345437B (en) * 2016-11-08 2018-12-25 太原理工大学 The preparation and its application in water process that conducting polymer consolidates sulfur materials
CN107445354A (en) * 2017-09-29 2017-12-08 楚雄滇中有色金属有限责任公司 The preprocess method of high rigidity Metallurgical Waste Water reuse
CN107601779B (en) * 2017-10-27 2020-07-21 紫金矿业集团股份有限公司 Method and device for treating and recycling mine copper-containing acidic wastewater
CN112312994A (en) * 2018-04-18 2021-02-02 克莱恩有限公司 Method for separating heavy metals and/or sulphur species from ionic liquids
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