Możliwość zastosowania reakcji Fentona w procesach kondycjonowania i stabilizacji osadów pochodzących z ośrodków intensywnej hodowli ryb

• Autorzy: Krzemieniewski M. , Dębowski M. , Sikora J.

Warianty tytułu

EN

Possibility of Fenton's reaction application for processes of conditioning and stabilization of sludge coming from intensive pisciculture plants

• Języki publikacji: PL

Abstrakty

PL

Celem eksperymentu było określenie możliwości zastosowania techniki pogłębionego utleniania z wykorzystaniem odczynnika Fentona w procesie stabilizacji i kondycjonowania osadów pochodzących z intensywnej hodowli pstrąga tęczowego.

EN

Intensive fish farming is closely related with the sludge production. The sour-ces of sludge in intensive fish farming are products of metabolic transformation including fish faeces, unused fish feed, mineral fertilizers and chemical compounds with antibacterial operation. Sludge generated in aquaculture must be subjected to processing and afterwards reused or disposed of. An alternative to the now practiced methods may become the techniques used with much success in water and wastewater treatment, such as the efficient chemical methods based mainly on intensive oxidation of contaminants. Effectiveness of Fenton reaction has been confirmed also in the case of sludge conditioning of domestic and industrial origin. This technique has enabled reduction of specific filtration resistance, increased the dewatering rate and dry weight of sludge. The aim of the experiment was to investigate a possibility of Fenton's reaction (Fe3+/H2O2) application for conditioning and stabilization of sludge coming from rainbow trout intensive farm. The experiment was run in four phases with various doses of the reacting substances applied to the technological system. They were performed on a laboratory scale at the ambient temperature of 20÷25°C. Analyses regarded the impact of the Fenton reagent doses on the properties of tested sludge. Tested in the experiment doses of Fe3+ ions and H2O2 were determined on the basis of data from literature as well as authors' own researches. Statistical significant differences (p<0.05) were found between dosage of the reagents and physical and chemical parameters of the prepared sludge. The applied method of sludge conditioning mainly impact the sludge dewatering properties (CST) and COD concentration in the effluent. The capillary suction times, depending on the applied dose of the Fenton reagent, were contained in the range between 425÷27 s. The COD concen-tration in the effluent varied from 470.7 mg O2/dm3 to 254.4 mg O2/dm3. Statistical significant effect was not found between technological system used and sludge composition (dry mass, mineral substances, volatile substances).

Słowa kluczowe

PL

zanieczyszczenie wody; odczynnik Fentona; pogłębione utlenianie; oczyszczanie ścieków

• Wydawca: Politechnika Koszalińska
• Czasopismo: Rocznik Ochrona Środowiska
• Rocznik: 2005
• Tom: Tom 7
• Strony: 99--115
• Opis fizyczny: Bibliogr. 28 poz.

Twórcy

autor

Krzemieniewski M.

autor

Dębowski M.

autor

Sikora J.

• Uniwersytet Warmińsko-Mazurski, Olsztyn

Bibliografia

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