RU2019122774A - METHOD FOR WASTE WATER PURIFICATION FROM HEAVY METAL IONS - Google Patents

METHOD FOR WASTE WATER PURIFICATION FROM HEAVY METAL IONS Download PDF

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Publication number
RU2019122774A
RU2019122774A RU2019122774A RU2019122774A RU2019122774A RU 2019122774 A RU2019122774 A RU 2019122774A RU 2019122774 A RU2019122774 A RU 2019122774A RU 2019122774 A RU2019122774 A RU 2019122774A RU 2019122774 A RU2019122774 A RU 2019122774A
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RU
Russia
Prior art keywords
waste water
flocculant
calcium carbonate
treatment
metal ions
Prior art date
Application number
RU2019122774A
Other languages
Russian (ru)
Other versions
RU2019122774A3 (en
RU2751783C2 (en
Inventor
Станислав Иванович Шамуков
Галина Григорьевна Тихонова
Екатерина Леонидовна Десятскова
Александра Сергеевна Тарасова
Original Assignee
Общество с ограниченной ответственностью "Средняя Волга"
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Priority to RU2019122774A priority Critical patent/RU2751783C2/en
Publication of RU2019122774A publication Critical patent/RU2019122774A/en
Publication of RU2019122774A3 publication Critical patent/RU2019122774A3/ru
Application granted granted Critical
Publication of RU2751783C2 publication Critical patent/RU2751783C2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment

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  • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Removal Of Specific Substances (AREA)

Claims (4)

1. Способ очистки сточных вод, включающий обработку сточных вод гидроокисью кальция и связывание образовавшихся гидроокисей тяжелых металлов карбонатом кальция, отличающийся тем, что карбонат кальция вводят в массовом соотношении к гидроокиси кальция 1:4-8 в пересчете на сухое вещество, при достижении показателя рН значения 10-11 вводят флокулянт, отделяют осадок, а осветленную часть водной системы подкисляют диоксидом углерода до достижения показателя рН значения 6,5-8,5.1. A method of wastewater treatment, including the treatment of wastewater with calcium hydroxide and the binding of the formed hydroxides of heavy metals with calcium carbonate, characterized in that calcium carbonate is introduced in a mass ratio to calcium hydroxide of 1: 4-8 in terms of dry matter, when the pH is reached values 10-11, a flocculant is introduced, the precipitate is separated, and the clarified part of the water system is acidified with carbon dioxide until the pH value is 6.5-8.5. 2. Способ по п. 1, отличающийся тем, что, в качестве источника карбоната кальция используют природный известняк.2. A method according to claim 1, characterized in that natural limestone is used as a source of calcium carbonate. 3. Способ по п. 1, отличающийся тем, что в качестве флокулянта используют высокополимеризованные анионный или катионный флокулянты, или их смесь в виде 0,1%-ного водного раствора.3. The method according to claim 1, characterized in that highly polymerized anionic or cationic flocculants, or their mixture in the form of a 0.1% aqueous solution, are used as the flocculant. 4. Способ по п. 3, отличающийся тем, что в случае присутствия в исходной сточной воде ионов магния, после обработки диоксидом углерода в водную систему дополнительно вводят флокулянт и отделяют образовавшийся осадок.4. The method according to claim 3, characterized in that in the case of the presence of magnesium ions in the initial waste water, after treatment with carbon dioxide, a flocculant is additionally introduced into the aqueous system and the formed sediment is separated.
RU2019122774A 2019-07-17 2019-07-17 Method for waste water purification from heavy metal ions RU2751783C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2019122774A RU2751783C2 (en) 2019-07-17 2019-07-17 Method for waste water purification from heavy metal ions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2019122774A RU2751783C2 (en) 2019-07-17 2019-07-17 Method for waste water purification from heavy metal ions

Publications (3)

Publication Number Publication Date
RU2019122774A true RU2019122774A (en) 2021-01-18
RU2019122774A3 RU2019122774A3 (en) 2021-01-18
RU2751783C2 RU2751783C2 (en) 2021-07-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2019122774A RU2751783C2 (en) 2019-07-17 2019-07-17 Method for waste water purification from heavy metal ions

Country Status (1)

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RU (1) RU2751783C2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0672624A1 (en) * 1994-02-21 1995-09-20 Ecc International Limited Treatment of waste water
RU2108301C1 (en) * 1996-08-07 1998-04-10 Акционерное общество "Уральский научно-исследовательский и проектный институт галургии" Method of removing heavy metal ions from acidic waste waters
EP2011766B1 (en) * 2007-06-15 2009-03-25 Omya Development Ag Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment
RU2386592C2 (en) * 2008-05-19 2010-04-20 Закрытое акционерное общество "Средняя Волга" Method of purifying acidic slightly muddy mine and underdump water
BR112014001302A2 (en) * 2011-07-19 2017-02-21 Søgaard Dennis method for removing flue gas condensate impurities

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Publication number Publication date
RU2019122774A3 (en) 2021-01-18
RU2751783C2 (en) 2021-07-16

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Effective date: 20210118