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Doświadczenia ze stosowania antyskalanta do zapobiegania wytrącania się kamienia w skruberze w instalacji suszenia osadu Oczyszczalni Ścieków Pomorzany

Dominowska M.

Forum Eksploatatora

2015

Nr 3 (78)

52-57

Oczyszczalnia Ścieków Pomorzany oczyszcza ścieki z lewobrzeżnej części Szczecina. W zlewni oczyszczalni przeważa w starszej części miasta kanalizacja ogólnospławna, a na obrzeżach rozdzielcza. Do oczyszczalni ścieki dopływają czterema systemami tłoczny z pięciu przepompowni ścieków - Grabów, Dolny Brzeg, Górny Brzeg, Białowieska i Szczawiowa, oraz dodatkowo z punktu zlewnego ścieków dowożonych, zlokalizowanego przy granicy oczyszczalni. Dalszy przepływ ścieków przez oczyszczalnię, aż do wylotu d rzeki Odry odbywa się grawitacyjnie.

Trocknung von KIärschlämmen in der Praxis

Hohnecker H.

Zeszyty Naukowe. Inżynieria Środowiska / Politechnika Opolska

2003

Vol. 291, z. 4

143-150

Today, sustainability-orientated concepts of exploitation and disposal of sewage sludges are more and more based on drying techniques as central element. The process of drying itself as well as the necessary technology is regarded as to be perfected and well known. Sludge drying can be realized quickly and economically. On principle it is needed for all processes of advanced sludge treatment. On closer examination of all components necessarily being integrated in a general view of sludge treatment the actual lack of overall logical concepts becomes clear.

Advanced drying systems heated with sludge granulate as fuel

Hohnecker H., Krebs G.

Zeszyty Naukowe. Inżynieria Środowiska / Politechnika Opolska

2003

Vol. 291, z. 4

33-50

The paper deals with the optimum features of a sewage sludge drying system and outlines ED directives on the use of organic substances. Details of two sludge drying systems are presented. Obringheim, Germany was built for a community, which accepts also dewatered sludge from other local sewage systems. This is an advanced drying technology, which combines sewage sludge drying and hot gas production in a cyclone furnace. The dried granulate is burnt directly in the cyclone furnace, the hot gas thus produced is reused for drying. The fluidized bed dryer is indirectly heated via a heat exchanger. The cyclone furnace off-gas and also the uncondensated dryer gases are treated and the values of the German off-gas (17th BIMSchV) standards are not only met but some actual values are far better. The plant in Pecs, Hungary was originally designed as a drum dryer but was later supplemented with equipment for thermal granulate use (EcoDry). This was not a costly investment, only major units being added and in cooperation with local companies. The paper reports some, especially emission, data. The basics for supplementing existing sludge drying systems are explained, as are the possibilities of operating flexibly with variable calorific value of sludge feed.