SU1502480A1 - Method of purifying waste water from fluoride-containing and suspended matter - Google Patents
Method of purifying waste water from fluoride-containing and suspended matter Download PDFInfo
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- SU1502480A1 SU1502480A1 SU864137378A SU4137378A SU1502480A1 SU 1502480 A1 SU1502480 A1 SU 1502480A1 SU 864137378 A SU864137378 A SU 864137378A SU 4137378 A SU4137378 A SU 4137378A SU 1502480 A1 SU1502480 A1 SU 1502480A1
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Abstract
Изобретение относитс к очистке сточных вод от фторсодержащих взвешенных веществ, может использоватьс в химической и других отрасл х промышленности и позвол ет повысить степень очистки. Дл осуществлени способа в сточную воду ввод т смесь полиакриламида и продукта обработки аэросила парами метилового спирта при 250-395°С размером частиц 0,02-0,04 мкм в соотношении 1:/0,5-1/, перемешивают и фильтруют. Способ позвол ет увеличить степень очистки от ионов фтора с 87 до 90-95%.The invention relates to the treatment of wastewater from fluorinated suspended solids, can be used in the chemical and other sectors of the industry and allows an increase in the degree of purification. To carry out the process, a mixture of polyacrylamide and the product of aerosil with methanol vapor at 250–395 ° C is introduced into the wastewater at a particle size of 0.02–0.04 µm in a ratio of 1: 0.5–1/1, stirred and filtered. The method allows to increase the degree of purification from fluoride ions from 87 to 90-95%.
Description
Изобретение относитс к очистке сточных вод от фторсодержащих и взвешенных веществ и может быть использовано в химической и других отрасл х промышленности.The invention relates to the treatment of wastewater from fluorine-containing and suspended substances and can be used in the chemical and other industries.
Цель изобретени - повышение степени очистки.The purpose of the invention is to increase the degree of purification.
Пример. Промышленные сточные воды - элюат после ионообменной очистки, содержащий 2100 мг/л дис- пе)сньгх взвешенных веществ, 710 мг/л фтор-ионов при рН 10-11, перемешивают в течение 0,5 мин с Водно-коллоидной смесью полиакриламида и высокодисперсного диоксида кремни ,модифицированного метоксигруппами представл ющего собой продукт обработки аэросила парами метилового спирта при 250-395 0 с размером частиц 0,02-0,04 мкм при 0,1%-ной концентрации и расходе по 16 мг/л каждого компонента смеси, затем фильтруют через фильтрационную воронку диаметром 25 см при разрежении 0,4 ат.Example. Industrial wastewater - an eluate after ion-exchange purification, containing 2100 mg / l disperse) suspended solids, 710 mg / l fluorine ions at pH 10-11, is mixed for 0.5 min with a water-colloidal mixture of polyacrylamide and highly dispersed silica, modified by methoxy groups, which is a product of the treatment of aerosil with methyl alcohol at 250-395 0 with a particle size of 0.02-0.04 µm at a 0.1% concentration and a consumption of 16 mg / l of each component of the mixture, then filtered through a filtration funnel with a diameter of 25 cm at a rarefaction Athenia 0.4 at.
Смесь готов т следующим образом. К исходному гелю ПАА 8%-ной концентрации добавл ют высокодисперсный порошок высокодисперсного диоксида кремни , модифицированного метокси- группами (ВДКМ) , и смесь переме1Ш1- вают в течение 0,5 ч. Затем добавл ют воду также при переме1Ш1вании до получени раствора 0,1% (по ПАА).The mixture is prepared as follows. A highly dispersed powder of highly dispersed silica modified with methoxy groups (VDKM) is added to the initial PAA gel of 8% concentration, and the mixture is stirred for 0.5 h. Then water is also added, with stirring, to obtain a solution of 0.1%. % (for PAA).
Результаты экспериментов приведены в таблице.The results of the experiments are shown in the table.
Параллельно, в соппстапимых услови х , провод т очистку сточных вод, загр зненных фтгфсодержап имиIn parallel, under compounded conditions, wastewater is treated that is contaminated with ftgs containing them.
слcl
о юo you
4four
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пзвешенными веществами, согласно иэиестного способа.weighing substances according to the proper method.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864137378A SU1502480A1 (en) | 1986-10-23 | 1986-10-23 | Method of purifying waste water from fluoride-containing and suspended matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864137378A SU1502480A1 (en) | 1986-10-23 | 1986-10-23 | Method of purifying waste water from fluoride-containing and suspended matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1502480A1 true SU1502480A1 (en) | 1989-08-23 |
Family
ID=21263848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864137378A SU1502480A1 (en) | 1986-10-23 | 1986-10-23 | Method of purifying waste water from fluoride-containing and suspended matter |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1502480A1 (en) |
-
1986
- 1986-10-23 SU SU864137378A patent/SU1502480A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Бабичев Н.И., Дрободенко В.П., Чорней Э.И., Сысоев В.Н. Осветление загр зненной оборотной воды с помощью полиакриламида. - Кольгма, 1973 № 7, с. 18-29. * |
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