SU664934A1 - Method of purifying waste water from chromium - Google Patents
Method of purifying waste water from chromiumInfo
- Publication number
- SU664934A1 SU664934A1 SU782571392A SU2571392A SU664934A1 SU 664934 A1 SU664934 A1 SU 664934A1 SU 782571392 A SU782571392 A SU 782571392A SU 2571392 A SU2571392 A SU 2571392A SU 664934 A1 SU664934 A1 SU 664934A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sulphite
- chromium
- electrocoagulation
- waste water
- purifying waste
- Prior art date
Links
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Description
11,0 мг/л, рН 12,7 и 5%-ный раствор сульфитно-спиртовой барды обрабатывают в электролизере с железными анодами при напр жении на электродах 1,0-2,0 В, токе 0,2-0,4 А, плотности тока 0,06-0,13 А/дм. Количество добавл емого раствора составл ет 1,0-1,5 л на 1 м сточных вод, врем обработки от 2 до 7 мин.11.0 mg / l, pH 12.7 and 5% solution of sulfite-alcohol bards are treated in the electrolyzer with iron anodes with a voltage on the electrodes 1.0-2.0 V, current 0.2-0.4 A current density of 0.06-0.13 A / dm. The amount of the solution added is 1.0-1.5 liters per 1 m of wastewater, the treatment time is from 2 to 7 minutes.
Измерение остаточного содержани показывает, что приемлема степень очистки достигаетс в указанных диапазонах величин напр жени тока, плотности тока, добавл емого раствора при времени обработки 3-7 мин, расход электроэнергии составл ет 0,08-0,40 кВт-ч/м.Measurement of the residual content shows that an acceptable degree of purification is achieved in the indicated ranges of voltage, current density, added solution with a treatment time of 3-7 minutes, electricity consumption is 0.08-0.40 kWh / m.
Пример 2. Сточные воды и электролизер те же, что в примере 1.Example 2. Sewage and the electrolyzer are the same as in example 1.
Добавл ют 5%-ньш раствор сульфитнодрожжевой бражки в количестве 1,0- 1,5 л/м. Параметры напр жени на электродах 1,1-1,5 В, тока 0,2-0,6 А, плотность тока 0,06-0,20 А/дм.A 5% sulphite yeast brewing solution was added in the amount of 1.0-1.5 l / m. Voltage parameters on the electrodes are 1.1-1.5 V, current 0.2-0.6 A, current density 0.06-0.20 A / dm.
При времени обработки 3-9 мин достигаетс приемлема степень очистки сточных вод от хрома, расход электроэнергии составл ет 0,06-0,67 кВт-ч/м.With a treatment time of 3-9 minutes, an acceptable degree of chromium wastewater treatment is achieved, the power consumption is 0.06-0.67 kWh / m.
Пример 3. Сточные воды и электролизер те же, что в примерах 1 и 2. Обработку провод т по технологии прототипа, не добавл сульфитно-спиртовую барду или сульфитно-дрожжевую бражку.Example 3. The wastewater and the electrolyzer are the same as in examples 1 and 2. The treatment is carried out according to the prototype technology, without adding a sulphite-alcohol bard or a sulphite-yeast mash.
Напр жение на электродах около 2,0 В, ток 1,0 А, плотность тока 0,33 А/дм.The voltage on the electrodes is about 2.0 V, current 1.0 A, current density 0.33 A / dm.
Приемлема степень очистки достигаетс после обработки в течение 20-30 мин, расход электроэнергии составл ет 3,6- 5,4 кВт-ч/м.Acceptable degree of purification is achieved after treatment for 20-30 minutes, electricity consumption is 3.6-5.4 kWh / m.
В результате очистки сточных вод от хрома в присутствии сульфитно-спиртовой барды или сульфитно-дрожжевой бражки продолжительность обработки сокращаетс с 20 до 3-9 мин и расход электроэнергии уменьшаетс с 3-4 до 0,06-0,7 кВт-ч/мAs a result of wastewater treatment of chromium in the presence of sulphite-alcohol bards or sulphite-yeast brewing, the treatment time is reduced from 20 to 3-9 minutes and the power consumption is reduced from 3-4 to 0.06-0.7 kWh / m
по сравнению с обработкой по технологии прототипа при условии достижени примерно равной степени очистки.in comparison with the processing according to the prototype technology, provided that an approximately equal degree of purification is achieved.
Это позвол ет снизить себестоимость очистки с 4,7 до 0,18-0,20 коп. на 1 м сточных вод.This reduces the cost of cleaning from 4.7 to 0.18-0.20 kopecks. on 1 m of sewage.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782571392A SU664934A1 (en) | 1978-01-23 | 1978-01-23 | Method of purifying waste water from chromium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782571392A SU664934A1 (en) | 1978-01-23 | 1978-01-23 | Method of purifying waste water from chromium |
Publications (1)
Publication Number | Publication Date |
---|---|
SU664934A1 true SU664934A1 (en) | 1979-05-30 |
Family
ID=20745249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782571392A SU664934A1 (en) | 1978-01-23 | 1978-01-23 | Method of purifying waste water from chromium |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU664934A1 (en) |
-
1978
- 1978-01-23 SU SU782571392A patent/SU664934A1/en active
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