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EA200000437A1 - Способ удаления селена из потоков технологической воды и устройство для его осуществления - Google Patents

Способ удаления селена из потоков технологической воды и устройство для его осуществления

Info

Publication number
EA200000437A1
EA200000437A1 EA200000437A EA200000437A EA200000437A1 EA 200000437 A1 EA200000437 A1 EA 200000437A1 EA 200000437 A EA200000437 A EA 200000437A EA 200000437 A EA200000437 A EA 200000437A EA 200000437 A1 EA200000437 A1 EA 200000437A1
Authority
EA
Eurasian Patent Office
Prior art keywords
selenium
rrnp
streams
selenite
refinery
Prior art date
Application number
EA200000437A
Other languages
English (en)
Inventor
Стивен Д. Оуверман
Original Assignee
Тексако Девелопмент Корпорейшн
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 Тексако Девелопмент Корпорейшн filed Critical Тексако Девелопмент Корпорейшн
Publication of EA200000437A1 publication Critical patent/EA200000437A1/ru

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • 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
    • C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
    • 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
    • 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
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison

Landscapes

  • 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)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Настоящее изобретение предоставляет рациональный и весьма эффективный способ удаления растворенного селена из разнообразных водных потоков нефтеперерабатывающего завода и потоков сточных вод. Настоящее изобретение предоставляет новый и эффективный способ окисления селеновых и селеноорганических соединений до селенита, имеющего степень окисления (+4), для того чтобы адсорбировать его на осадке оксида металла или гидроксида металла. Это изобретение включает два реактора-резервуара с непрерывным перемешиванием (РРНП), работающих последовательно. Обрабатываемый поток и одну из нескольких солей железа (сульфат железа, хлорное железо и др.) вводят в первый РРНП, при этом образуются осадки гидроксида железа и оксигидроксида железа. Значение рН в первом РРНП автоматически контролируется посредством регулирования скорости добавления соли железа. Поток, выходящий из первого реактора, поступает во второй РРНП, в который вводят перманганат калия. Селен в обрабатываемом исходном потоке окисляется до селенита (+4); осадок диоксида марганца образуется как побочный продукт реакции окисления. Затем селенит адсорбируется на различных осадках, которые удаляются путем центрифугирования. Значение рН центрифугированной воды устанавливается автоматически путем контролируемого добавления гидроксида натрия. Эффективность этого непрерывного способа продемонстрирована для потоков с широким интервалом концентраций селена, включая сточные воды нефтеперерабатывающего завода и отпаренную кислую воду нефтеперерабатывающего завода. Этот способ также эффективен для обработки потоков вторичных сточных вод, таких как сбрасываемая
EA200000437A 1997-10-20 1998-10-15 Способ удаления селена из потоков технологической воды и устройство для его осуществления EA200000437A1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/954,405 US5993667A (en) 1997-10-20 1997-10-20 Process for removing selenium from refinery process water and waste water streams
PCT/US1998/021835 WO1999020569A1 (en) 1997-10-20 1998-10-15 Process for removing selenium from refinery process water and wastewater streams

Publications (1)

Publication Number Publication Date
EA200000437A1 true EA200000437A1 (ru) 2000-10-30

Family

ID=25495389

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200000437A EA200000437A1 (ru) 1997-10-20 1998-10-15 Способ удаления селена из потоков технологической воды и устройство для его осуществления

Country Status (12)

Country Link
US (2) US5993667A (ru)
EP (1) EP1025051A1 (ru)
JP (1) JP2001520119A (ru)
KR (1) KR20010031417A (ru)
CN (1) CN1279652A (ru)
AU (1) AU734044B2 (ru)
BG (1) BG104438A (ru)
BR (1) BR9814827A (ru)
CA (1) CA2307707A1 (ru)
EA (1) EA200000437A1 (ru)
TR (1) TR200001725T2 (ru)
WO (1) WO1999020569A1 (ru)

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Also Published As

Publication number Publication date
BR9814827A (pt) 2001-11-27
TR200001725T2 (tr) 2000-10-23
AU734044B2 (en) 2001-05-31
CN1279652A (zh) 2001-01-10
US5993667A (en) 1999-11-30
KR20010031417A (ko) 2001-04-16
WO1999020569A1 (en) 1999-04-29
JP2001520119A (ja) 2001-10-30
AU1091799A (en) 1999-05-10
US6156191A (en) 2000-12-05
BG104438A (en) 2001-02-28
CA2307707A1 (en) 1999-04-29
EP1025051A1 (en) 2000-08-09

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