SU203548A1 - METHOD OF CLEANING OF WASTE PRODUCTION - Google Patents
METHOD OF CLEANING OF WASTE PRODUCTIONInfo
- Publication number
- SU203548A1 SU203548A1 SU1083450A SU1083450A SU203548A1 SU 203548 A1 SU203548 A1 SU 203548A1 SU 1083450 A SU1083450 A SU 1083450A SU 1083450 A SU1083450 A SU 1083450A SU 203548 A1 SU203548 A1 SU 203548A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cleaning
- alkaline
- waste production
- aqueous
- production
- Prior art date
Links
Landscapes
- Removal Of Specific Substances (AREA)
Description
Изобретение относитс к способам очистки сточных вод от осмол ющихс веществ.The invention relates to methods for treating wastewater from osmolizing substances.
Известен способ очистки сточных вод производства капролактама путем раздельной обработки щелочного и водного стоков минеральными кислотами, например азотной, серной . При этом происходит отделение водного сло от смол ного, который направл ют на сожжение. Водный слой после отделени выпавщей адипиновой кислоты нейтрализуют и направл ют на биосинтез дрожжей.A known method of purification of wastewater production of caprolactam by separate treatment of alkaline and aqueous effluent with mineral acids, for example nitric, sulfuric. When this happens, the aqueous layer is separated from the resin, which is sent for incineration. After separation of the precipitated adipic acid, the aqueous layer is neutralized and sent to yeast biosynthesis.
Однако при очистке сточных вод известным способом требуетс больщой расход кислоты, процесс этот достаточно сложен, так как обработку щелочного и водного стоков провод т по отдельным схемам и в различных аппаратах .However, when treating wastewater in a known manner, a large amount of acid is required; this process is rather complicated, since the treatment of alkaline and aqueous effluents is carried out according to separate schemes and in various apparatus.
Согласно изобретению предлагаетс предварительно смещивать щелочной и водный стоки и обрабатывать смесью серной и фосфорной кислот в соотнощении предпочтительно 1:1. Смесь кислот может содержать от 50 до 20% фосфорной кислоты.According to the invention, it is proposed to pre-shift the alkaline and aqueous drains and treat with a mixture of sulfuric and phosphoric acids in a ratio of preferably 1: 1. The mixture of acids may contain from 50 to 20% phosphoric acid.
Пример. Щелочной и водный стоки смещивают в соотнощении 3:1, т. е. в том, в котором они получаютс в производстве. К объединенному стоку добавл ют на холоду смесьExample. Alkaline and water drains are displaced in a ratio of 3: 1, i.e. in that in which they are produced in production. Cold mixture is added to the combined drain.
серной и фосфорной кислот, вз тых в соотнощении 1:1, до достижени рН 3,5-4,0. Выделивщийс смол ной слой направл ют на сожжение. Водный слой после отделени выпавщей адипиновой кислоты нейтрализуют иsulfuric and phosphoric acids, taken in a 1: 1 ratio, until a pH of 3.5-4.0 is reached. The separated resin bed is sent for incineration. The aqueous layer after separation of the precipitated adipic acid is neutralized and
направл ют на биосинтез дрожжей.sent for yeast biosynthesis.
Предмет изобретени Subject invention
Способ очистки сточных вод производства капролактама путем обработки щелочного и водного стоков минеральными кислотами, отличающийс тем, что, с целью сокращени расхода кислоты и упрощени процесса, щелочной и водный стоки предварительно смещивают и обрабатывают смесью серной и фос форной кислот в соотнощении предпочтительно 1:1.The wastewater treatment method of caprolactam production by treating alkaline and aqueous effluents with mineral acids, characterized in that, in order to reduce acid consumption and simplify the process, alkaline and aqueous effluents are pre-displaced and treated with a mixture of sulfuric and phosphoric acids in a ratio of preferably 1: 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1083450A SU203548A1 (en) | 1966-06-04 | 1966-06-04 | METHOD OF CLEANING OF WASTE PRODUCTION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1083450A SU203548A1 (en) | 1966-06-04 | 1966-06-04 | METHOD OF CLEANING OF WASTE PRODUCTION |
Publications (1)
Publication Number | Publication Date |
---|---|
SU203548A1 true SU203548A1 (en) | 1973-02-08 |
Family
ID=20439410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1083450A SU203548A1 (en) | 1966-06-04 | 1966-06-04 | METHOD OF CLEANING OF WASTE PRODUCTION |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU203548A1 (en) |
-
1966
- 1966-06-04 SU SU1083450A patent/SU203548A1/en active
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