Naslov
Biosorption and biodegradation of carbon compounds from pharmaceutical industrial wastewater

Autori
Šabić, Monika ; Janton, Nikolina ; Vuković Domanovac, Marija ; Meštrović, Ernest

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Knjiga sažetaka, XXV. hrvatski skup kemičara i kemijskih inženjera s međunarodnim sudjelovanjem / Šantić, Ana ; Đaković, Marijana - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Hrvatsko kemijsko drustvo, 2017, 185-185

Skup
25. hrvatski skup kemičara i kemijskih inženjera s međunarodnim sudjelovanjem

Mjesto i datum
Poreč, Hrvatska, 19.04.2017. - 22.04.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
biosorption, biodegradation, activated sludge, pharmaceutical industrial wastewater

Sažetak
Biological wastewater treatment with activated sludge is commonly used technology for contaminants removal from wastewater. It has significant efficiency and decreases ecological footprint. Activated sludge consists primarily of bacteria which are connected in activated sludge flocs. Its main role is the removal of carbon compounds from wastewater with biosorption and biodegradation. Biosorption is a process where carbon compounds from wastewater are attached on the surface of biomass cell structure or accumulated within the structure of a floc [1]. Microorganisms from activated sludge can metabolize captured carbon compounds to the final main products, carbon dioxide and water. In this way biodegradation becomes substantial process for the removal of organic contaminants [2]. The aim of this work was to study biosorption and biodegradation of organic contaminants from pharmaceutical industrial wastewater with activated sludge. The experiments were conducted in batch conditions with initial concentration of pharmaceutical wastewater, S0 = 5473 ± 85.6 mg dm- 3, and different initial concentrations of activated sludge, which ranged between 2.82 and 5.98 g dm-3. During the experiments, chemical oxygen demand (COD), concentration of biomass, dissolved oxygen and pH-value were monitored. Microscopic analysis was also conducted. In biosorption, the equilibrium was reached within 30 minutes and process efficiency was 20.5 %. Biodegradation process was described with Endo- Haldane model. Biokinetic parameters were estimated to be µmax = 0.19 h-1, KS = 113.09 g dm- 3, Ki = 8.05 g dm- 3, kd = 4.23·10-3 h-1 and Y = 0.19 g g-1. Overall efficiency of biodegradation process was 74.4 %.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

Napomena
Rad je osvojio nagradu za najbolje postersko
priopćenje iz područja kemijskog i biokemijskog
inženjerstva.

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