SU1161486A1 - Method of bioligical purification of waste water - Google Patents
Method of bioligical purification of waste water Download PDFInfo
- Publication number
- SU1161486A1 SU1161486A1 SU823397941A SU3397941A SU1161486A1 SU 1161486 A1 SU1161486 A1 SU 1161486A1 SU 823397941 A SU823397941 A SU 823397941A SU 3397941 A SU3397941 A SU 3397941A SU 1161486 A1 SU1161486 A1 SU 1161486A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sludge
- purification
- waste water
- recycled
- crushed
- Prior art date
Links
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Activated Sludge Processes (AREA)
Abstract
СПОСОБ БИОЛОГИЧЕСКОЙ ОЧИСТКИ СТОЧНЫХ вод, включающий обработку при аэрации предварительно измельченным и насыщенным кислородом рециркулируемьм активным илом и отстаивание иловой суспензии, отличающийс тем, что, с целью повьппени степени очистки от взвешенных веществ, измельчают 1/8-1/12 часть рециркулируемого ила до размера хлопьев 200600 мкм, после чего ее смещивают с оставшейс частью рециркулируемого ила и исходными сточными водами. (ЛTHE METHOD OF BIOLOGICAL SEWAGE TREATMENT, including aeration treatment with pre-crushed and saturated oxygen, is recycled with activated sludge and settling of the silt suspension, characterized in that, in order to purify suspended solids, 1 / 8-1 / 12 of the recycled sludge is crushed to size flakes of 200600 microns, after which it is shifted with the rest of the recirculated sludge and source wastewater. (L
Description
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с а i Изобретение относитс к биологической очистке сточных вод и может найти применение при очистке промышленных сточных вод, в частности промстоков целлю оэно-бумажной, фотохимической промьшшенностей, произ водства искусственного волокна и др Целью изобретени вл етс повыш ние степени очистки от взвешенных веществ. П р и не р. Сточные воды с концентрацией загр знений 300 мг/л при расходе 28 тыс. м/ч подают в аэротенк , где смешивают с активным илом расход которого составл ет 14 тыс. м/ч. Обработку ведут в течение 3,5 ч при аэрировании воздухом с ра ходом 230 тыс. м/ч Обработанную суспензию направл от во вторичный отстойник, гДе в течение 2 V суспензию отстаивают. Затем отдел ют очищенную воду, а осадок активного ила после удалени избыточного количества подают в канал реци 6 кулируемого ила. Из канала отвод т 1/10 часть рециркулируемого ила, что составл ет 1,4 тыс. м/ч, и направл ют в закрытую камеру, где ил измельчают путем перемешивани при скорости вращени мешалки 75 об/мин в течение 10 мин с одновременной подачей в камеру tOO м/ч технического кислорода дл насьпдени ила. Обработанный таким образом рециркулируемый активный ил подают в иловый канал, где его смешивают с оставшейс частью ила - 13,6 тыс. , а затем весь поток рециркулируемого ила направл ют в аэротенк дл обработки сточ ых вод. Количество взвешенных веществ в очищенной.воде 27 мг/л. Предлагаемый способ по сравнению с известным позвол ет снизить количество взвешенных веществ в 3-4 раза, а также сократить длительность процесса очистки.c a i The invention relates to the biological treatment of wastewater and can be used in the treatment of industrial wastewater, in particular industrial wastewater, paper, photochemical industry, production of synthetic fiber, etc. The aim of the invention is to increase the degree of purification from suspended substances. P p and not p. Wastewater with an impurity concentration of 300 mg / l at a flow rate of 28 thousand m / h is fed to the aeration tank, where the consumption of 14 thousand m / h is mixed with active sludge. The treatment is carried out for 3.5 hours with aeration with air at a rate of 230 thousand m / h. The treated suspension is directed from the secondary settling tank to a depth of 2 V for 2 V to settle. Purified water is then separated, and a deposit of activated sludge, after removal of an excess amount, is fed into the canal of the reciprocal 6 sludge. 1/10 of the recycled sludge, which is 1.4 thousand m / h, is diverted from the channel and sent to a closed chamber, where the sludge is ground by mixing at a stirrer rotation speed of 75 rpm for 10 minutes while feeding into the chamber tOO m / h of technical oxygen for sludge deposition. The recycled activated sludge thus treated is fed into the sludge channel, where it is mixed with the remaining part of the sludge - 13.6 thousand, and then the entire stream of recycled sludge is sent to the aeration tank for wastewater treatment. The amount of suspended substances in purified water is 27 mg / l. In comparison with the known method, the proposed method allows reducing the amount of suspended substances by 3-4 times, as well as reducing the duration of the cleaning process.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SU823397941A SU1161486A1 (en) | 1982-02-19 | 1982-02-19 | Method of bioligical purification of waste water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU823397941A SU1161486A1 (en) | 1982-02-19 | 1982-02-19 | Method of bioligical purification of waste water |
Publications (1)
Publication Number | Publication Date |
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SU1161486A1 true SU1161486A1 (en) | 1985-06-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU823397941A SU1161486A1 (en) | 1982-02-19 | 1982-02-19 | Method of bioligical purification of waste water |
Country Status (1)
Country | Link |
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SU (1) | SU1161486A1 (en) |
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1982
- 1982-02-19 SU SU823397941A patent/SU1161486A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР № 508484, кл. С 02 F 3/34, 1977. За вка DE № 2535837, кл. С 02 С 1У12, 1979 (прототип). * |
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