SU379541A1 - METHOD OF CLEANING SEWAGE FROM DYES - Google Patents
METHOD OF CLEANING SEWAGE FROM DYESInfo
- Publication number
- SU379541A1 SU379541A1 SU1618705A SU1618705A SU379541A1 SU 379541 A1 SU379541 A1 SU 379541A1 SU 1618705 A SU1618705 A SU 1618705A SU 1618705 A SU1618705 A SU 1618705A SU 379541 A1 SU379541 A1 SU 379541A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- dyes
- degree
- cleaning sewage
- flotation
- wastewater
- Prior art date
Links
Landscapes
- Removal Of Specific Substances (AREA)
- Physical Water Treatments (AREA)
Description
,1,one
Способ очистки сточных вод от красителей в .присутствии поверхностно-активных веществ (ПАВ) заключаетс ъо флотации красителей в нейтральной среде.The method of purification of wastewater from dyes in the presence of surface-active substances (surfactants) is the flotation of dyes in a neutral medium.
Известный ранее способ дает низкую степень извлечени красителей. Так, например, степень извлечени смеси красителей хлопчато-бумажного производства в присутствии поверхностпо-активпого вещества ОП-10 составл ет 1,8%.The previously known method gives a low degree of extraction of dyes. For example, the recovery rate of a mixture of cotton dyes in the presence of the surfactant substance OP-10 is 1.8%.
Цель изобретени - повышение эффективности очистки. Дл этого флотацию ведут в кислой среде при рН ,4.The purpose of the invention is to increase the cleaning efficiency. For this, flotation is carried out in an acidic medium at pH 4.
Изобретение обеспечивает значительное увеличение степени извлечени .красителей. Например, степень извлечени красителей хлопчато-бумажного производства из сточных вод с рН 2 составл ет 81 %.The invention provides a significant increase in the degree of extraction of dyes. For example, the recovery rate of cotton dyes from wastewater with a pH of 2 is 81%.
Сточные воды хлопчато-бу1мажных и камвольно-суконных производств, содержащие смесь красителей и поверхностно-активных веществ (см. табл. 2), подкисл ют до рН 4 и подвергают флотации.Wastewater from cotton and worsted fabrics, containing a mixture of dyes and surfactants (see Table 2), is acidified to pH 4 and subjected to flotation.
Зависимость степени очистки стсжов от соотношени Красителей и ПАВ приведена в табл. № 1... The dependence of the degree of purification of strictures on the ratio of dyes and surfactants is given in table. No. 1 ...
Таблйца № 1Tables number 1
Весовое соотношение Weight ratio
Степень обесцвечивани красителей и ПАВ раствора, %The degree of bleaching of dyes and surfactant solution,%
Эффективность очистки стоков по предложенному и известному способам приведена в табл. 2.The effectiveness of wastewater treatment by the proposed and known methods are given in table. 2
Зависимость степени обесцвечивани стоков от реакции среды приведена в табл. 3.The dependence of the degree of discoloration of effluents on the reaction of the medium is given in Table. 3
Смесь красителей, характерна дл хлопчато-бумажного производства: кубовый желтый, пр мой зеленый, сернистый черный, при рН среды 2, 4, 5, 7 имеет степень обесцвечивани (%) соответственно 81; 61; 50; 1,8.The mixture of dyes characteristic of cotton production: vat yellow, direct green, sulfur black, at a pH of 2, 4, 5, 7, has a degree of bleaching (%), respectively, 81; 61; 50; 1.8.
Состав стокаThe composition of the drain
Таблица 3Table 3
Степень извлечени красителей, %The degree of extraction of dyes,%
Предмет изобретени Способ очистки сточных вод от красителей 45 путем флотации в присутствии -поверхностноактивных веществ, отличающийс тем, что, с целью повышени эффективности очистки, флотацию ведут в «ислой среде при рН 4.The subject of the invention. A method for purifying wastewater from dyes 45 by flotation in the presence of surface-active substances, characterized in that, in order to increase the cleaning efficiency, flotation is carried out in an "organic medium at pH 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1618705A SU379541A1 (en) | 1971-02-09 | 1971-02-09 | METHOD OF CLEANING SEWAGE FROM DYES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1618705A SU379541A1 (en) | 1971-02-09 | 1971-02-09 | METHOD OF CLEANING SEWAGE FROM DYES |
Publications (1)
Publication Number | Publication Date |
---|---|
SU379541A1 true SU379541A1 (en) | 1973-04-20 |
Family
ID=20465209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1618705A SU379541A1 (en) | 1971-02-09 | 1971-02-09 | METHOD OF CLEANING SEWAGE FROM DYES |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU379541A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102531226A (en) * | 2011-10-20 | 2012-07-04 | 常州亚环环保科技有限公司 | Method for treating acidic dye printing and dyeing wastewater |
-
1971
- 1971-02-09 SU SU1618705A patent/SU379541A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102531226A (en) * | 2011-10-20 | 2012-07-04 | 常州亚环环保科技有限公司 | Method for treating acidic dye printing and dyeing wastewater |
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