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RU96116343A - METHOD FOR TREATING ACID WASTE WATER FROM HEAVY METAL IONS - Google Patents

METHOD FOR TREATING ACID WASTE WATER FROM HEAVY METAL IONS

Info

Publication number
RU96116343A
RU96116343A RU96116343/25A RU96116343A RU96116343A RU 96116343 A RU96116343 A RU 96116343A RU 96116343/25 A RU96116343/25 A RU 96116343/25A RU 96116343 A RU96116343 A RU 96116343A RU 96116343 A RU96116343 A RU 96116343A
Authority
RU
Russia
Prior art keywords
stage
metal ions
heavy metal
precipitation
waste water
Prior art date
Application number
RU96116343/25A
Other languages
Russian (ru)
Other versions
RU2108301C1 (en
Inventor
Н.Н. Тетерина
С.М. Адеев
А.В. Радушев
Original Assignee
Акционерное общество "Уральский научно-исследовательский и проектный институт галургии" (АО "Галургия")
Filing date
Publication date
Application filed by Акционерное общество "Уральский научно-исследовательский и проектный институт галургии" (АО "Галургия") filed Critical Акционерное общество "Уральский научно-исследовательский и проектный институт галургии" (АО "Галургия")
Priority to RU96116343A priority Critical patent/RU2108301C1/en
Priority claimed from RU96116343A external-priority patent/RU2108301C1/en
Application granted granted Critical
Publication of RU2108301C1 publication Critical patent/RU2108301C1/en
Publication of RU96116343A publication Critical patent/RU96116343A/en

Links

Claims (2)

Способ очистки кислых сточных вод от ионов тяжелых металлов, включающий двухстадийное осаждение тяжелых металлов с использованием известкового молока на первой стадии и карбоната натрия - на второй стадии, отличающийся тем, что на 1-й стадии осаждения сточные воды обрабатывают известковым молоком до рН 4,8 - 5,4 и полученную суспензию дополнительно обрабатывают карбонатом натрия до рН 6,0 - 6,5 с последующим выделением осадка, а на второй стадии рН осветленных стоков с остаточным содержанием примесей доводят до уровня 7,5 - 8,0, после этого суспензию кондиционируют флотореагентом с последующим выделением осадка флотацией.A method of purifying acidic wastewater from heavy metal ions, including two-stage precipitation of heavy metals using lime milk in the first stage and sodium carbonate in the second stage, characterized in that in the 1st stage of precipitation, the wastewater is treated with milk of lime to pH 4.8 - 5.4 and the resulting suspension is additionally treated with sodium carbonate to a pH of 6.0 - 6.5, followed by precipitation, and in the second stage, the pH of the clarified effluent with a residual impurity content is adjusted to a level of 7.5 - 8.0, after which the suspension Flotation w conditioned with subsequent isolation of the precipitate by flotation. 2. Способ по п.1, отличающийся тем, что в качестве флотореагента используют натриевые соли синтетических жирных кислот с длиной углеводородного радикала выше С21.2. The method according to claim 1, characterized in that as the flotation reagent use sodium salts of synthetic fatty acids with a hydrocarbon radical length above C 21 .
RU96116343A 1996-08-07 1996-08-07 Method of removing heavy metal ions from acidic waste waters RU2108301C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96116343A RU2108301C1 (en) 1996-08-07 1996-08-07 Method of removing heavy metal ions from acidic waste waters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96116343A RU2108301C1 (en) 1996-08-07 1996-08-07 Method of removing heavy metal ions from acidic waste waters

Publications (2)

Publication Number Publication Date
RU2108301C1 RU2108301C1 (en) 1998-04-10
RU96116343A true RU96116343A (en) 1998-12-10

Family

ID=20184366

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96116343A RU2108301C1 (en) 1996-08-07 1996-08-07 Method of removing heavy metal ions from acidic waste waters

Country Status (1)

Country Link
RU (1) RU2108301C1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2494046C2 (en) * 2011-05-31 2013-09-27 Михаил Николаевич Смирнов Method of purifying waste water from metal ions
RU2480419C1 (en) * 2011-10-13 2013-04-27 Леонид Асхатович Мазитов Method of purifying acidic waste water from heavy metal ions
RU2488561C2 (en) * 2011-10-13 2013-07-27 Леонид Асхатович Мазитов Method of purifying waste water from heavy metal ions
RU2525902C1 (en) * 2013-03-14 2014-08-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Дальневосточный государственный технический рыбохозяйственный университет" Method of galvanic sewage purification from ions of heavy metals
CN108423891A (en) * 2018-05-24 2018-08-21 张家港市清泉水处理有限公司 A kind of sewage disposal system and its processing method containing zinc ion
RU2726121C1 (en) * 2019-05-28 2020-07-09 Федеральное государственное бюджетное образовательное учреждение высшего образования "Челябинский государственный университет" Method of industrial waste water purification from heavy metals
RU2751783C2 (en) * 2019-07-17 2021-07-16 Общество с ограниченной ответственностью "Средняя Волга" Method for waste water purification from heavy metal ions
CN113754132B (en) * 2021-10-11 2023-05-05 厦门紫金矿冶技术有限公司 Treatment method of beneficiation wastewater containing anionic polyacrylamide and oleic acid

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