Przegląd badań nad oczyszczaniem ścieków z zastosowaniem technologii złoża ruchomego (moving bed)

• Autorzy: Żubrowska-Sudoł M.

Warianty tytułu

EN

A literature review of the moving bed biofilm process in wastewater treatment

• Języki publikacji: PL

Abstrakty

PL

Przedstawiono główne założenia technologii złoża ruchomego oraz obecny stan wiedzy nad zastosowaniem tej metody w przepływowych oraz porcjowych systemach oczyszczania ścieków. W swoich założeniach technologia złoża ruchomego wykorzystuje zalety zarówno metody osadu czynnego, jak i złoża biologicznego, jednocześnie eliminując wady tych rozwiązań. Zasada procesu polega na zastosowaniu jako podłoża dla rozwoju mikroorganizmów swobodnie poruszających się w oczyszczanych ściekach elementów o dużej powierzchni właściwej. W przepływowych systemach oczyszczania ścieków metoda złoża ruchomego (reaktory typu MBBR) znalazła zastosowanie do: usuwania zanieczyszczeń organicznych, realizacji procesu nitryfikacji, eliminacji azotu oraz biologicznej defosfatacji. Doniesienia literaturowe wskazują, że sekwencyjne reaktory porcjowe ze złożem ruchomym (MBSBBR) dają możliwość wysoko sprawnego zintegrowanego usuwania związków C, N i P.

EN

A literature review of the moving bed biofilm process in wastewater treatment was performed. The moving bed biofilm process is based on the biofilm principle and utilizes the advantages of activated sludge process and the biofilter process without being restrained by their disadvantages. The basic rule of the process is that the biomass grows on the carrier elements that move freely along with wastewater in the reactor due to aeration or mechanical mixing. In moving bed process diffusion of compounds in to and out of the biofilm plays a key role. That is why the ideal biofilm is thin and evenly distributed over the surface of the carriers which is possible thanks to the proper turbulence and existence of the shearing forces. Results of experimental studies (run during wastewater treatment) on the influence of carrier size and shape indicate that moving bed biofilm reactors should be designed based on surface loading rate. The shape and the size of the carrier elements do not seem to be significant as long as the effective surface area is the same. The moving bed biofilm process has been used for many different applications: carbon removal, nitrification, nitrogen removal (pre-denitrification, post-denitrification, combined denitrification) and biological phosphorus removal. The process has been used for both municipal and industrial wastewater. Various investigations have shown that biological phosphorus and nitrogen removal can be achieved in a moving bed biofilm reactor operated as SBR. The results from laboratory scale indicate that organic carbon uptake and phosphorus release have been achieved in the anaerobic phase of the cycle, while nitrification, simultaneous denitrification and phosphorus uptake were observed in the aerobic phase. In order to evaluate the full scale potential of the process further studies are required.

Słowa kluczowe

PL

technologia złoża ruchomego; oczyszczanie ścieków; eliminacja azotu; biologiczna defosfatacja

EN

moving bed biofilm process; wastewater treatment; nitrogen removal; biological phosphorus removal

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Inżynieria i Ochrona Środowiska
• Rocznik: 2004
• Tom: T. 7, nr 1
• Strony: 65--79
• Opis fizyczny: Bibliogr. 44 poz.

Twórcy

autor

Żubrowska-Sudoł M.

• Politechnika Warszawska, Instytut Zaopatrzenia w Wodę i Budownictwa Wodnego, ul. Nowowiejska 20, 00-653 Warszawa

Bibliografia

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