Naslov
Investigation of Crucial Influencing Factors for Biodegradation of Microplastics by Taguchi Method

Autori
Miloloža, Martina ; Bule, Kristina ; Badurina-Petričević, Amadea ; Anzulović, Lucija ; Jazbišek, Ivana ; Prevarić, Viktorija ; Sigurnjak Bureš, Marija ; Cvetnić, Matija ; Markić, Marinko ; Bolanča, Tomislav ; Ukić, Šime ; Ocelić Bulatović, Vesna ; Kučić Grgić, Dajana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

Izvornik
Water research and innovations in digital era / - , 2021, 38-45

Skup
12th Eastern European Young Water Professionals Conference

Mjesto i datum
Riga, Latvija, 31.03.2021. - 02.04.2021

Vrsta sudjelovanja
Ostalo

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Bacillus cereus ; biodegradation ; microplastics ; Taguchi design

Sažetak
Microplastic particles at size lower than 5 mm represent global environmental problem according to their presence and abundance in all environmental systems, even in food intended for human consumption. Microplastics are cause of concern due to their long lasting in the environment and impact on aquatic organisms through bioaccumulation and biomagnification. Due to this fact, further researches about impact of microplastic particles on organisms are necessary, as well as finding adequate solutions for its removal from the environment. A lot of different processes are investigated in mentioned purposes. One of the potential solutions is biological processes. Bioremediation is economical, efficient and environmentally friendly process which involves the use of microorganisms in the purpose of removing pollutants from the environment. In this study, key process parameters that influence on biodegradation of polystyrene (PS) and polyvinyl chloride (PVC) by bacterium Bacillus cereus according to Taguchi design of experiments were investigated. It was investigated 7 factors at 2 levels (minimal and maximal value of each factor): pH-value, temperature, size of microplastic particles, concentration of microplastics, agitation speed, optical density of bacterial suspension, and addition of glucose. By this statistical design of experiments, the optimization of the conditions for biodegradation process of PS and PVC by B. cereus was performed using the number of living cells of bacterium as response parameter. The influence of each mentioned factor was evaluated by Taguchi method and the most statistically significant factors were determinate.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Interdisciplinarne tehničke znanosti

POVEZANOST RADA