PL142003B2 - Biological sewage treatment method - Google Patents

Biological sewage treatment method Download PDF

Info

Publication number
PL142003B2
PL142003B2 PL25120184A PL25120184A PL142003B2 PL 142003 B2 PL142003 B2 PL 142003B2 PL 25120184 A PL25120184 A PL 25120184A PL 25120184 A PL25120184 A PL 25120184A PL 142003 B2 PL142003 B2 PL 142003B2
Authority
PL
Poland
Prior art keywords
aeration
chambers
sewage treatment
sludge
treatment method
Prior art date
Application number
PL25120184A
Other languages
Polish (pl)
Other versions
PL251201A2 (en
Inventor
Augustyn Jelonek
Original Assignee
Miejskie Przed Wodociagow I Ka
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miejskie Przed Wodociagow I Ka filed Critical Miejskie Przed Wodociagow I Ka
Priority to PL25120184A priority Critical patent/PL142003B2/en
Publication of PL251201A2 publication Critical patent/PL251201A2/en
Publication of PL142003B2 publication Critical patent/PL142003B2/en

Links

Landscapes

  • Activated Sludge Processes (AREA)

Description

Przedmiotem wynalazku jest sposób biologicznego oczyszczania scieków z wykorzystaniem pracy komór napowietrzania.Znane sa rózne sposoby oczyszczania scieków osadem czynnym. Jeden z nich polega na tym, ze scieki wprowadza sie do komór, w których zachodzi proces osadu czynnego. Nastepnie z komór tych odprowadza sie scieki do osadnika wtórnego, gdzie nastepuje sedymentacja osadu, a scieki oczyszczone podawane sa do odbiornika lub podawane dalszemu oczyszczaniu. Przy tym sposobie oczyszczania konieczne jest dodatkowe przepompowywanie osadu zalegajacego w osadniku wtór¬ nym do komór napowietrzania. Wymaga to dodatkowego zapotrzebowania energii na przepom¬ powywanie osadu z osadników wtórnych do komór napowietrzania. Usuwanie osadu z osadników wtórnych poziomych lub radialnych mozliwe jest przy zastosowaniu zgarniaczy, które równiez pobieraja energie i sa urzadzeniami zawodnymi.Innym rozwiazaniem jest rów biologiczny, w którym zachodzi proces osadu czynnego. Perio¬ dycznie wylacza sie urzadzenia napowietrzajace, doprowadza sie do sedymentacji osadu, dopiero wówczas wody nadosadowe odprowadza sia do odbiornika lub do dalszej obróbki. Wada zas tego sposobu jest mieszanie sie scieków surowych ze sciekami oczyszczonymi w momencie spustu scieków oczyszczonych. Nowym rozwiazaniem jest oczyszczalnia typu GIGABLOK, w której scieki doplywaja do komory pierwszego napowietrzania, nastepnie do drugiej komory. Druga komora jest periodycznie wylaczana. Po sedymentacji osadu wody nadosadowe odprowadza sie urzadzeniami plywakowymi. Po odplywie wody nadosadowej nastepuje napelnienie komory z równoczesnym poddawaniem scieków procesowi napowietrzania urzadzeniami zamontowanymi na plywakach. Wada opisanego sposobu jest strata energii dostarczonej przez areatory i szczotki Kessnera, (szczotki Kessenera wykazuja niska sprawnosc dzialania). Ponadto stalowe urzadzenia plywakowe do regulacji poziomu areatorów i szczotek w srodowisku scieków szybko ulegaja korozji. Nastepuje równiez szybki wzrost ciezaru plywaków podtrzymujacych koryta odprowadza¬ jace scieki oczyszczone, poprzez osadzanie sie w nich osadu ze scieków. Zaleganie osadu w komorach napowietrzania,jego pecznienie i wydostawanie sie do odplywu stanowi równiez istotna wade opisanego sposobu oczyszczania scieków.I 2 142 603 W celu usuniecia wad i niedogodnosci wyzej opisanych opracowano sposób biologicznego oczyszczania scieków wedlug wynalazku, którego istota polega na tym, ze proces osadu czynnego prowadzi sie w komorach, które pracuja periodycznie i przemiennie oraz jako komora napowie¬ trzania, a raz jako osadnik wtórny.Zaleta wynalazku jest wyeliminowanie dodatkowej pompowni do przetlaczania osadu recyr- kulowanego do komór napowietrzania, wyeliminowanie zalegania osadu czynnego w osadnikach wtórnych. J [ { Przyklad. Podstawowym obiektem technologicznym sa trzy pary komór napowietrzania, kazda z nich sklada sie z dwóch blizniaczych zbiorników. W trakcie normalnej eksploatacji rozpoczyna sie prace zbiornika, jako komory napowietrzania, przy stwierdzeniu ilosci osadu np. 500 ml/dm3 po 30 minutach badania w leju Imhoffa. Drugi zbiornik pracuje wówczas jako osadnik wtórny. Po zakonczeniu cyklu pracy nastepuje wylaczenie doplywu i odplywu scieków, osad poddaje sie sedymentacji np. w ciagu 1 godz. i po tym czasie zmienia sie funkcje zbiorników. Proces oczyszczania prowadzi sie w ten sposób, ze doplyw scieków zamyka sie do jednej komory przy pracujacych dwóch komorach. Napowietrzanie odbywa sie w znany sposób przy uzyciu areatorów, przy czym mozna zastosowac z dobrym powodzeniem kazdy inny znany sposób napowietrzania.Scieki po przeplynieciu przez zbiornik pracujacy jako osadnik wtórny odplywaja do zbiornika w celu dalszego procesu oczyszczania.Zastrzezenie patentowe Sposób biologicznego oczyszczania scieków z wykorzystaniem pracy komór napowietrzania, znamienny tym, ze proces oczyszczania scieków prowadzi sie w komorach, które pracuja periody¬ cznie, przemiennie raz jako komora napowietrzania, a raz jako osadnik wtórny.Pracownia Poligraficzna UP PRL. Naklad 100 egz Cena 220 zl PLThe subject of the invention is a method of biological wastewater treatment using the operation of aeration chambers. Various methods of wastewater treatment with active sludge are known. One of them is that the wastewater is introduced into the chambers where the activated sludge process takes place. Then, from these chambers, the wastewater is discharged to the secondary settling tank, where the sedimentation of the sludge takes place, and the treated wastewater is fed to the receiver or further treated. In this treatment method, it is necessary to additionally pump the sludge deposited in the secondary settling tank to the aeration chambers. This requires an additional energy requirement for pumping the sludge from the secondary settling tanks into the aeration chambers. Removal of sludge from horizontal or radial secondary sedimentation tanks is possible with the use of scrapers, which also consume energy and are unreliable devices. Another solution is the biological ditch in which the activated sludge process takes place. The aeration devices are periodically turned off, sedimentation of the sludge is carried out, only then the surplus water is discharged to the receiver or for further treatment. The disadvantage of this method is the mixing of raw sewage with treated sewage at the time of discharging the treated sewage. A new solution is the GIGABLOK sewage treatment plant, in which the wastewater flows to the first aeration chamber, and then to the second chamber. The second chamber is periodically turned off. After sedimentation of the sediment, the surplus waters are discharged with floating devices. After the outflow of the surplus water, the chamber is filled and the sewage is subjected to the process of aeration with devices mounted on floats. The disadvantage of the described method is the loss of energy supplied by the aerators and Kessner brushes (the Kessener brushes show low efficiency). In addition, steel floating devices for regulating the level of aerators and brushes in the wastewater environment quickly corrode. There is also a rapid increase in the weight of the floats supporting the troughs discharging the treated sewage through the deposition of sewage sludge in them. The deposition of sediment in the aeration chambers, its swelling and escaping to the drain is also a significant disadvantage of the described method of wastewater treatment. I 2 142 603 In order to eliminate the drawbacks and inconveniences described above, a biological wastewater treatment method was developed according to the invention, the essence of which is that the process is The active sludge is carried out in chambers that work periodically and alternately, as an aeration chamber, and once as a secondary settling tank. The advantage of the invention is the elimination of an additional pumping station for transferring the recirculated sludge to the aeration chambers, eliminating the residual activated sludge in the secondary settling tanks. J [{Ex. The basic technological object are three pairs of aeration chambers, each of them consists of two twin tanks. During normal operation, the tank works as an aeration chamber when the amount of sediment is found, e.g. 500 ml / dm3 after 30 minutes of testing in the Imhoff hopper. The second tank then works as a secondary settling tank. After the end of the work cycle, the inflow and outflow of sewage is turned off, the sludge is subject to sedimentation, e.g. within 1 hour. and after this time the functions of the tanks change. The treatment process is carried out in such a way that the sewage inflow is closed to one chamber with two working chambers. Aeration is carried out in a known manner with the use of aerators, and any other known aeration method can be used with good success. After flowing through a tank operating as a secondary settling tank, it flows to the tank for further treatment. aeration chambers, characterized in that the sewage treatment process is carried out in chambers that work periodically, alternately as an aeration chamber and then as a secondary settling tank. Printing studio of the Polish People's Republic of Poland. Mintage 100 copies Price PLN 220 PL

Claims (1)

1. Zastrzezenie patentowe Sposób biologicznego oczyszczania scieków z wykorzystaniem pracy komór napowietrzania, znamienny tym, ze proces oczyszczania scieków prowadzi sie w komorach, które pracuja periody¬ cznie, przemiennie raz jako komora napowietrzania, a raz jako osadnik wtórny. Pracownia Poligraficzna UP PRL. Naklad 100 egz Cena 220 zl PL1. Patent claim A method of biological wastewater treatment using the operation of aeration chambers, characterized in that the sewage treatment process is carried out in chambers that work periodically, alternately as an aeration chamber and then as a secondary settling tank. Printing workshop of the UP PRL. Mintage 100 copies Price PLN 220 PL
PL25120184A 1984-12-21 1984-12-21 Biological sewage treatment method PL142003B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25120184A PL142003B2 (en) 1984-12-21 1984-12-21 Biological sewage treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25120184A PL142003B2 (en) 1984-12-21 1984-12-21 Biological sewage treatment method

Publications (2)

Publication Number Publication Date
PL251201A2 PL251201A2 (en) 1985-12-03
PL142003B2 true PL142003B2 (en) 1987-09-30

Family

ID=20024746

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25120184A PL142003B2 (en) 1984-12-21 1984-12-21 Biological sewage treatment method

Country Status (1)

Country Link
PL (1) PL142003B2 (en)

Also Published As

Publication number Publication date
PL251201A2 (en) 1985-12-03

Similar Documents

Publication Publication Date Title
US7135110B2 (en) Denitrification system for nitrified wastewater or nitrified water
CZ282411B6 (en) Waste or sewage water treatment and apparatus for making the same
Cannon et al. SE—structures and environment: pilot-scale development of a bioreactor for the treatment of dairy dirty water
US7820048B2 (en) Method and system for treating organically contaminated waste water
Rim et al. A full-scale test of a biological nutrients removal system using the sequencing batch reactor activated sludge process
Saqqar et al. Modelling the performance of anaerobic wastewater stabilization ponds
Banas et al. SBR technology used for advanced combined municipal and tannery wastewater treatment with high receiving water standards
PL142003B2 (en) Biological sewage treatment method
CA1113193A (en) Method and a system for treating liquid, in particular waste water
Radwan et al. Influence of COD/NH 3–N ratio on organic removal and nitrification using a modified RBC
CN220467749U (en) Treatment system for treating Cr (VI) polluted groundwater by sequencing batch chemical reduction
RU2767110C1 (en) Method for deep biological treatment of waste water
GB1438923A (en) Process and apparatus for conducting effluent treatment at uniform loads
Thackston Secondary waste treatment for a small diversified tannery
SU1114618A1 (en) Ship water purification plant
MERRILL Treatment Plant Designed for Frozen Meat Wastes
SU1726393A1 (en) Waste water cleaning apparatus
SU916433A1 (en) Apparatus for purifying effluents
Hatch et al. Chemical/physical and biological treatment of wool processing wastes
Medding Lagoon disposal of water treatment plant wastes
SU1404465A1 (en) Radial sedimetation tank for separating sludge mixture
CN117038139A (en) Radioactive wastewater treatment equipment and treatment method thereof
Halvorson The Use of the Oxidation Ditch in the United States as a Means of Treating Liquid Waste
Safhay OXYGEN, AND OTHER INNOVATIONS, HELP LICK TOUGH WASTE PROBLEM
Ellis et al. The selection and design of sequencing batch reactors for treatment capacity expansion in Abu Dhabi