SU414201A1 - - Google Patents
Info
- Publication number
- SU414201A1 SU414201A1 SU1750694A SU1750694A SU414201A1 SU 414201 A1 SU414201 A1 SU 414201A1 SU 1750694 A SU1750694 A SU 1750694A SU 1750694 A SU1750694 A SU 1750694A SU 414201 A1 SU414201 A1 SU 414201A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sludge
- activated sludge
- wastewater
- mixture
- sludge mixture
- Prior art date
Links
Classifications
-
- 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)
Description
1one
Изобретение относитс к области очистки сточных вод.This invention relates to the field of wastewater treatment.
Известный способ биологической очистки сточных вод заключаетс в том, что очищас мые сточные воды аэрируют возду.хом с активиым илом в течение 6-16 час. Полученную иловую смесь отвод т во вторичные отстойники , где активный ил отдел от от иловоГ смеси. Однако отмечаетс низка степень очистки - биологическа потребность в кислоподе за 20 суток (БПКао) 54-92 мг/л, а содержание взвешенных веществ 60-120 ,Гл.A known method for the biological treatment of wastewater is that the treated wastewater is aerated with activated sludge air for 6-16 hours. The resulting sludge mixture is diverted to secondary sedimentation tanks, where activated sludge is separated from the sludge mixture. However, the degree of purification is low — the biological need for oxygen over 20 days (BOD-54) is 54–92 mg / l, and the suspended matter content is 60–120, Ch.
По предложенному способу активный ил от иловой смеси отдел ют фильтрованием иловой смеси через слой предварительно уплотненного активного ила. Это снижает биологическую потребность в кислороде за 20 суток (БПК2о) до 10-18 мг/л и содержание взвешенных веш;еств до 4-16 мг/л.In the proposed method, activated sludge from the sludge mixture is separated by filtering the sludge mixture through a layer of pre-compacted activated sludge. This reduces the biological oxygen demand in 20 days (BOD2o) to 10–18 mg / l and the content of suspended matter to 4–16 mg / l.
Пример. Предварительно отстоенную сточную воду от производства стекловолокна с БПК20 600 мг/л и взвешенными веществами в количестве 260 мг/л аэрируют с активным илом при дозе 9,0 г/л в течение 6 час. После аэрации иловую смесь из аэротенка равномерно распредел ют по поверхности псиного сло уплотненного активиого ила и фильтруют при скорости 0,6 мм/сек. Отделившийс активный ил возвращают в аэротенк, а очищенную воду удал ют из системы. Пенный слой активного Example. Pre-settled wastewater from the production of fiberglass with BOD20 600 mg / l and suspended solids in the amount of 260 mg / l is aerated with activated sludge at a dose of 9.0 g / l for 6 hours. After aeration, the sludge mixture from the aerotank is evenly distributed over the surface of the densified layer of activated sludge and filtered at a speed of 0.6 mm / sec. The separated activated sludge is returned to the aeration tank and the purified water is removed from the system. Active foam layer
ила уплотн ют флотацией пузырьками воздуха , которые по.тучают путелг предварительного насыщени 80% очищениой воды под давлением 5,5 ат с возвратом ее в камеру реакции .The sludge is compacted by flotation with air bubbles, which cause the nod to pre-saturate with 80% purification of water under a pressure of 5.5 atm and return it to the reaction chamber.
Результаты проведенных исследований по очистке сточных вод приведены в таблице.The results of the research on wastewater treatment are shown in the table.
ПоказательIndicator
Количество взвешенных веществ в пробе очищенной воды, мг/лThe amount of suspended substances in the sample of purified water, mg / l
БПКг, очищенной воды, .чг/лBPKg, purified water, .chg / l
Средний процент снижени взвешенных веществ, %The average percentage reduction in suspended matter,%
Средний процент снижени БПКоо. %The average percentage reduction in BODA. %
Предмет изобретени Способ биологической очистки сточных вод путем 1Х аэрации с активным илом и отделением активного ила от иловой смеси, отличаю щ и и с тем, что, с целью повышени степени очистки и уменьшени объема очистных сооруженнй, отделение активного ила от иловой смеси производ т фильтрованием иловой смеси через слой предварительно уплотненного активного ила.The subject of the invention. A method of biological treatment of wastewater by 1X aeration with activated sludge and separation of activated sludge from the sludge mixture is different in that, in order to increase the degree of purification and reduce the volume of sewage treatment plants, the sludge from the sludge mixture is filtered by sludge mixture through a layer of pre-compacted activated sludge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1750694A SU414201A1 (en) | 1972-02-22 | 1972-02-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1750694A SU414201A1 (en) | 1972-02-22 | 1972-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU414201A1 true SU414201A1 (en) | 1974-02-05 |
Family
ID=20503968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1750694A SU414201A1 (en) | 1972-02-22 | 1972-02-22 |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU414201A1 (en) |
-
1972
- 1972-02-22 SU SU1750694A patent/SU414201A1/ru active
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