SU812758A1 - Method of counterflow of waste water in aerotanks - Google Patents

Method of counterflow of waste water in aerotanks Download PDF

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Publication number
SU812758A1
SU812758A1 SU792763497A SU2763497A SU812758A1 SU 812758 A1 SU812758 A1 SU 812758A1 SU 792763497 A SU792763497 A SU 792763497A SU 2763497 A SU2763497 A SU 2763497A SU 812758 A1 SU812758 A1 SU 812758A1
Authority
SU
USSR - Soviet Union
Prior art keywords
air
waste water
aerotanks
counterflow
aeration
Prior art date
Application number
SU792763497A
Other languages
Russian (ru)
Inventor
Галина Александровна Хабасахалова
Андрей Прохорович Радченко
Борис Петрович Ленский
Original Assignee
Ростовский Инженерно-Строитель-Ный Институт
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Application filed by Ростовский Инженерно-Строитель-Ный Институт filed Critical Ростовский Инженерно-Строитель-Ный Институт
Priority to SU792763497A priority Critical patent/SU812758A1/en
Application granted granted Critical
Publication of SU812758A1 publication Critical patent/SU812758A1/en

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Description

(54) СПОСОБ ПРОТИВОТОЧНОЙ АЭРАЦИИ СТОЧНЫХ ВОД .В АЭРОТЕНКАХ(54) METHOD OF COUNTER FLOW AERATION OF WASTE WATER. IN AEROTENS

. . . ГИзобретение относитс  к вододиаб и канализации) преимущественно к биологической очистке сточных вод, н предназначено дл  интенсификации процесса растворенч  кислорода воздуха в аэротенках. Известен способ аэрации сточных воа в аэротенках, когда воздух подаетс  по магистральньил воздуховодам, поступьет в каналы, перекрытые фильт росными пластинами и, проход  через пластины, в виде мелкопузырчатого по тока поднимаетс  на поверхность жидкости . При этом происходит растворение кислорода воздуха в азрируемой жидкости fl} . Однако в процессе эксплуатации пр посто нной подаче воздуха в аэротенке образуютс  направленные циркул ционные потоки, жидкости со скоростью в районе фильтросных «оробов пор дка 0,5гО,. В результате этого уменьшаетс  процент раствор ющегос  в жидкости кислорода по сравнению с растворением кислорода при отсутствии направленного движени  жидкости Цель изобретени  - увеличение коэффициента использовани  .кислорода воздуха за счет повышени  газосодер жани  воды. Поставленна  цель достигаетс  тем, что воздух подают со скоростью 0,015-0,0 м/с попеременно под диаметрально противоположные фильтрос-. ные каналы с интервсшом .1,5-2 мин. На фиг. 1 изображена схема первоначального раскручивани  жидкости в аэротенке, на Фиг. 2- схема противотока фаз в аэротенке. Предлагаемый способ осуществл етс  следующим образом. Воздух со скоростью 0,02 м/с подают в один из фильтросных каналов, например в левый 1. При этом жид кость, наход ща с  в аэротенке 2, за счет поднимающегос  воздуха приобретает вращательное движение по часовой стрелке со скоростью подъема в зоие .барботажа 0,7-0,8 м/с и через 1,5-2 мин устанавливаетс  посто нна  скорость вращени  жидкости. Тогда прекращают прдачу воздуха в левый фильтросный канал 1 и начинают подачу в правый фильтросный канал 3. За счет инерции жидкость продолжает вращатьс  в прежнем направлении по часовой стрелке, при этом создаютс  встречные потоки- газовой и жнцкой фаз. Постепенно, в течение 1,5-2 мии скорость вращени  жидкости уменьшает. . . The invention relates to water diabetics and sewage) mainly to the biological treatment of wastewater, but it is intended to intensify the process of dissolution of air oxygen in aeration tanks. The known method of aeration of wastewater in aeration tanks, when air is supplied through the trunk duct, enters the channels blocked by filter plates and, passing through the plates, in the form of a finely bubble current rises to the surface of the liquid. When this occurs, the dissolution of air oxygen in the fluid being flured. However, during the operation of a continuous air supply in the aeration tank, directed circulation flows, fluids with a velocity in the region of the filter orbits on the order of 0.5 gO, are formed. As a result, the percentage of oxygen dissolved in the liquid is reduced compared to the dissolution of oxygen in the absence of directional movement of the liquid. The purpose of the invention is to increase the utilization rate of air oxygen by increasing the gas content of water. The goal is achieved by the fact that the air is fed at a speed of 0.015-0.0 m / s alternately under diametrically opposite filter -. Channels with an interval of 1.5-2 minutes. FIG. 1 shows a diagram of the initial unwinding of a liquid in the aero tank, FIG. 2- diagram of the countercurrent of phases in the aerotank. The proposed method is carried out as follows. Air at a speed of 0.02 m / s is supplied to one of the filtration channels, for example, to the left 1. At the same time, the fluid in the aeration tank 2, due to the rising air, acquires a rotational motion clockwise with a speed of ascent to the barging 0.7-0.8 m / s and after 1.5-2 minutes a constant rotation rate of the fluid is established. Then, the supply of air to the left filtration channel 1 is stopped and the supply to the right filtration channel 3 begins. Due to inertia, the liquid continues to rotate in the previous direction clockwise, thus creating opposing flows of the gas and gas phases. Gradually, during 1.5-2 missions, the rotation speed of the fluid decreases

с  до нул , а затем измен ет свое направление и начинает 1 ращатьс  против чассвой стрелки. Цикл повтор етс .c to zero, and then changes its direction and begins to grow 1 counterclockwise. The cycle is repeated.

Благодар  нгшичию противотока фаз возрастает газосодержание водного потока и площадь поверхности раздела фаз. Это приводит j уменьшению на 25-30% расхода воздуха, при сохранении эффективности аэрации, и, следовательно , пропорционгии.но сокращению расхода электроэнергии на подачу воздуха.Due to the ngshichiyu backflow phases increases the gas content of the water flow and the surface area of the phase separation. This leads to a 25-30% decrease in air consumption, while maintaining the efficiency of aeration, and, consequently, proportioning. But reducing electricity consumption for air supply.

Claims (1)

1. Худенко Б.М. и Шпирт Е.А.- Аэраторы дл  очистки сточных вод. М., Стройиздат, 1973, с. 57-61.1. Khudenko B.M. and Shpirt, EA .- Aerators for wastewater treatment. M., stroiizdat, 1973, p. 57-61.
SU792763497A 1979-05-08 1979-05-08 Method of counterflow of waste water in aerotanks SU812758A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU792763497A SU812758A1 (en) 1979-05-08 1979-05-08 Method of counterflow of waste water in aerotanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU792763497A SU812758A1 (en) 1979-05-08 1979-05-08 Method of counterflow of waste water in aerotanks

Publications (1)

Publication Number Publication Date
SU812758A1 true SU812758A1 (en) 1981-03-15

Family

ID=20826588

Family Applications (1)

Application Number Title Priority Date Filing Date
SU792763497A SU812758A1 (en) 1979-05-08 1979-05-08 Method of counterflow of waste water in aerotanks

Country Status (1)

Country Link
SU (1) SU812758A1 (en)

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