SU1548158A1 - Method of purifying waste water from dyes - Google Patents
Method of purifying waste water from dyes Download PDFInfo
- Publication number
- SU1548158A1 SU1548158A1 SU864023921A SU4023921A SU1548158A1 SU 1548158 A1 SU1548158 A1 SU 1548158A1 SU 864023921 A SU864023921 A SU 864023921A SU 4023921 A SU4023921 A SU 4023921A SU 1548158 A1 SU1548158 A1 SU 1548158A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- dyes
- waste water
- irradiation
- purifying waste
- potential
- Prior art date
Links
Classifications
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Изобретение касаетс очистки сточных вод от примесей органической природы, в частности от красителей и их полупродуктов. Цель изобретени - ускорение процесса. Очистку ведут путем электрохимической обработки с одновременным облучением видимым светом с использованием анода из полупроводникового триоксида вольфрама, наход щегос в услови х внешней пол ризации и облучени , при потенциале 0,8-1,2 В относительно хлорсеребр ного электрода сравнени . 1 табл.The invention relates to wastewater treatment from impurities of organic nature, in particular from dyes and their intermediates. The purpose of the invention is to accelerate the process. Purification is carried out by electrochemical treatment with simultaneous irradiation with visible light using an anode of semiconductor tungsten trioxide, which is subject to external polarization and irradiation, at a potential of 0.8-1.2 V relative to a silver-chloride reference electrode. 1 tab.
Description
Изобретение относитс к очистке сточных вод от примесей органической природы и может быть использовано дл очистки стоков от красителей и их полупродуктов.The invention relates to the treatment of wastewater from organic impurities and can be used to clean wastewater from dyes and their intermediates.
Цель изобретени - увеличение скорости очистки.The purpose of the invention is to increase the cleaning rate.
Пример. Процесс очистки водных растворов окрашенных веществ ведут в стекл нном или кварцевом сосуде объемом 50 мл с одновременным воздействием полного спектра лампы накаливани мощностью 500 Вт и электрохимического окислени с использованием катода из графита (титана или нержавеющей стали) и фотоанода из триоксида вольфрама, полученного термическим окислением металлического вольфрама, причем с помощью внешнего источника на фотоаноде поддерживают потенциал +1,1 В относительно хлорсеребр ного электрода сравнени . Сравнение предлагаемого и известного способов провод т при использовании равной площади электродов, равной 1 см2 и равном напр жении, а также при использовании напр жени 30 В (по известному способу). Эффективность очистки измер ют в виде отношени исходной концентрации окрашенного соединени к остаточной его концентрации за один и тот же период времени (30 мин) обработки. Концентрацию красител определ ют спектро- фотометрически.Example. The process of purification of aqueous solutions of colored substances is carried out in a 50 ml glass or quartz vessel with simultaneous exposure to the full spectrum of a 500 W glow lamp and electrochemical oxidation using a graphite cathode (titanium or stainless steel) and a tungsten trioxide photoanode obtained by thermally oxidizing metallic tungsten, and with the help of an external source at the photoanode, a potential of +1.1 V is maintained relative to the silver-chloride reference electrode. A comparison of the proposed and known methods is carried out using an equal area of the electrodes, equal to 1 cm2 and equal to the voltage, as well as using a voltage of 30 V (by a known method). Purification efficiency is measured as the ratio of the initial concentration of the colored compound to its residual concentration over the same time period (30 minutes) of treatment. The concentration of the dye is determined spectrophotometrically.
Данные способа приведены в таблице .These methods are shown in the table.
Процесс возможен при интервале потенциала триоксидвольфрамового анода от -0,2 В до +1,8 В. Однако,при его значени х от -0,2 до +2,0 В эффективность процесса невелика, а приThe process is possible at the potential interval of the trioxide-tungsten anode from -0.2 V to +1.8 V. However, at its values from -0.2 to +2.0 V, the efficiency of the process is small, and at
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-тГотенциалах от +1,2 до +1,8В возрастает темновый ток,привод щий к непроизводительным затратам энергии.- With potentials from +1.2 to + 1.8V, the dark current increases, leading to unproductive energy costs.
Спектральный диапазон в способе не вл етс существенным. Конкретна длина волны излучени либо спектр выбираетс в зависимости от области поглощени удал емой примеси, удобств технического осуществлени процесса и т.д.The spectral range in the method is not significant. The specific radiation wavelength or spectrum is selected depending on the absorption region of the removed impurity, the convenience of the technical implementation of the process, etc.
Применение предлагаемого способа позвол ет значительно повысить скорость протекани процесса.|The application of the proposed method allows to significantly increase the speed of the process. |
58А58A
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864023921A SU1548158A1 (en) | 1986-02-18 | 1986-02-18 | Method of purifying waste water from dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864023921A SU1548158A1 (en) | 1986-02-18 | 1986-02-18 | Method of purifying waste water from dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1548158A1 true SU1548158A1 (en) | 1990-03-07 |
Family
ID=21222209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU864023921A SU1548158A1 (en) | 1986-02-18 | 1986-02-18 | Method of purifying waste water from dyes |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1548158A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0967178B1 (en) * | 1998-06-26 | 2007-09-19 | Canon Kabushiki Kaisha | Method and apparatus for treating coloured liquid |
-
1986
- 1986-02-18 SU SU864023921A patent/SU1548158A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0967178B1 (en) * | 1998-06-26 | 2007-09-19 | Canon Kabushiki Kaisha | Method and apparatus for treating coloured liquid |
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