RU95102444A - Method for conducting of electrolysis - Google Patents

Method for conducting of electrolysis

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Publication number
RU95102444A
RU95102444A RU95102444/25A RU95102444A RU95102444A RU 95102444 A RU95102444 A RU 95102444A RU 95102444/25 A RU95102444/25 A RU 95102444/25A RU 95102444 A RU95102444 A RU 95102444A RU 95102444 A RU95102444 A RU 95102444A
Authority
RU
Russia
Prior art keywords
oxygen
oxidation
wastewater
catalysts
oxidizing agent
Prior art date
Application number
RU95102444/25A
Other languages
Russian (ru)
Inventor
О.Н. Новиков
Original Assignee
О.Н. Новиков
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 О.Н. Новиков filed Critical О.Н. Новиков
Priority to RU95102444/25A priority Critical patent/RU95102444A/en
Publication of RU95102444A publication Critical patent/RU95102444A/en

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  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

FIELD: electrochemistry. SUBSTANCE: oxidizing agent is fed into space between electrodes, thus chain oxidation reaction of organic compounds with the help of air oxygen is initiated. Ions of halogen (as catalyst for liberation of active oxygen) or salts or dibasic acids (as catalyst for selective production of peroxide compounds) may be also added. Two streams of sewage being treated by said catalysts are mixed, thus difficulty oxidized impurities are oxidized. If concentration of said impurities and concentration of active oxygen are insufficient then special sorbent with catalytic centers is used and voltage is increased at least by 4 V. EFFECT: decreases energy expense for oxidation of organic material. 15 cl, 2 dwg

Claims (1)

Изобретение относится к электрохимии, в частности к способам электрохимической очистки сточных вод, преимущественно промстоков, содержащих растворенные органические вещества на предприятиях пищевой, химической и нефтяной промышленности. По данному способу в межэлектродное пространство подают окислитель. При этом инициируются цепные реакции окисления органических веществ кислородом воздуха. Как вариант проведения процесса дополнительно вводят ионы галогенов в качестве катализаторов выделения активного кислорода (кислорода в момент выделения, атомарного кислорода, синглетного кислорода, озона) или вводят соли двухосновных кислот как катализатор избирательного получения перекисных соединений. При смешивании двух потоков сточных вод, обработанных двумя катализаторами, происходит окисление трудноокисляемых примесей. Когда концентрация окисляющихся примесей и активного кислорода в сточных водах недостаточна для того, чтобы процесс окисления шел с достаточной скоростью, используется сорбент, на поверхности которого сорбируются как органические вещества, так и окислитель, каталитические центры способствуют превращению малоактивных форм активного кислорода (например, перекисей) в свободные радикалы и синглетный кислород. Растворенные в сточной воде соединения переходных металлов способствуют окислению высокомолекулярных веществ. Новым является то, что сточная вода после электрообработки поступает на сорбент с каталитическими центрами, напряжение повышают по крайней мере на 4В, в межэлектродное пространство дополнительно подают окислитель, например кислород воздуха, а поверхности электродов модифицируют соединениями переходных металлов. В способе использованы цепные реакции окисления, инициируемые электрохимически (в том числе с применением синглетного кислорода), специальные сорбенты - катализаторы, покрытия. За счет этого на окисление одного г-эквивалента органического вещества требуется в 2 - 10 раз меньшее количество электричества, пропускаемого через раствор (10000 - 50000 кулон).The invention relates to electrochemistry, in particular to methods for electrochemical wastewater treatment, mainly industrial wastewater containing dissolved organic substances in the food, chemical and petroleum industries. According to this method, an oxidizing agent is fed into the interelectrode space. In this case, chain reactions of oxidation of organic substances by atmospheric oxygen are initiated. As a variant of the process, halogen ions are additionally introduced as catalysts for the release of active oxygen (oxygen at the time of release, atomic oxygen, singlet oxygen, ozone) or dibasic acid salts are introduced as a catalyst for the selective production of peroxide compounds. When two streams of wastewater treated with two catalysts are mixed, oxidation of difficultly oxidized impurities occurs. When the concentration of oxidizing impurities and active oxygen in wastewater is insufficient for the oxidation process to proceed at a sufficient speed, a sorbent is used, on the surface of which both organic substances and an oxidizing agent are adsorbed, catalytic centers contribute to the conversion of low-active forms of active oxygen (e.g., peroxides) into free radicals and singlet oxygen. The transition metal compounds dissolved in waste water contribute to the oxidation of high molecular weight substances. What is new is that after the electric treatment the wastewater enters the sorbent with catalytic centers, the voltage is increased by at least 4V, an oxidizing agent, such as atmospheric oxygen, is additionally introduced into the interelectrode space, and the electrode surfaces are modified with transition metal compounds. The method uses oxidation chain reactions initiated electrochemically (including using singlet oxygen), special sorbents - catalysts, coatings. Due to this, the oxidation of one g-equivalent of organic matter requires 2 to 10 times less amount of electricity passed through the solution (10,000 - 50,000 pendant).
RU95102444/25A 1995-02-21 1995-02-21 Method for conducting of electrolysis RU95102444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95102444/25A RU95102444A (en) 1995-02-21 1995-02-21 Method for conducting of electrolysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95102444/25A RU95102444A (en) 1995-02-21 1995-02-21 Method for conducting of electrolysis

Publications (1)

Publication Number Publication Date
RU95102444A true RU95102444A (en) 1996-12-10

Family

ID=48450673

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95102444/25A RU95102444A (en) 1995-02-21 1995-02-21 Method for conducting of electrolysis

Country Status (1)

Country Link
RU (1) RU95102444A (en)

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