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DatoValore
TitleGreen bio-dispersant removal efficacy estimation for controlling biofilms in cooling towers
AbstractIn this study the effect of green bio-dispersants on cooling water biofilm attachment has been investigated. As monitoring biofilm growth in industrial cooling systems is extremely complex and difficult, we developed a simple method to additively evaluate the effectiveness of green bio-dispersants on biofilms grown in two different lab-scale systems using, as inoculum, make-up water from an industrial cooling tower. The proposed method uses spectrophotometry to estimate the detached biomass after bio-dispersant action. The biofilm detachment rate and the removal percentage of biofilm were calculated after the use of six green bio-dispersants, two non-green dispersants and three controls at two different concentrations. Under all tested conditions, green bio-dispersants showed higher biofilm removal percentage and detachment rate than non-green additives. These results suggest that highly performing green additives could be recommended as a reasonable replacement for non-green additives for controlling biofilms in cooling towers, in accordance to the European Union's REACH regulation.
SourceAnnals of microbiology 67 (11), pp. 779–784
KeywordsBio-dispersantBiofilmBiofoulingCooling towerGreen additiveRemoval kinetic
JournalAnnals of microbiology
EditorSpringer, Heidelberg, Germania
Year2017
TypeArticolo in rivista
DOI10.1007/s13213-017-1301-3
AuthorsDi Pippo, Francesca; Di Pippo, Francesca; de Tora, Francesca; Di Gregorio, Luciana; Buccolini, Marco; Capocecera, Rossano; Rossetti, Simona; Tandoi, Valter
Text379098 2017 10.1007/s13213 017 1301 3 Scopus 2 s2.0 85030330388 Bio dispersant Biofilm Biofouling Cooling tower Green additive Removal kinetic Green bio dispersant removal efficacy estimation for controlling biofilms in cooling towers Di Pippo, Francesca; Di Pippo, Francesca; de Tora, Francesca; Di Gregorio, Luciana; Buccolini, Marco; Capocecera, Rossano; Rossetti, Simona; Tandoi, Valter Consiglio Nazionale delle Ricerche; Istituto per l Ambiente Marino Costiero del Consiglio Nazionale delle Ricerche IAMC CNR ; Chimec SpA In this study the effect of green bio dispersants on cooling water biofilm attachment has been investigated. As monitoring biofilm growth in industrial cooling systems is extremely complex and difficult, we developed a simple method to additively evaluate the effectiveness of green bio dispersants on biofilms grown in two different lab scale systems using, as inoculum, make up water from an industrial cooling tower. The proposed method uses spectrophotometry to estimate the detached biomass after bio dispersant action. The biofilm detachment rate and the removal percentage of biofilm were calculated after the use of six green bio dispersants, two non green dispersants and three controls at two different concentrations. Under all tested conditions, green bio dispersants showed higher biofilm removal percentage and detachment rate than non green additives. These results suggest that highly performing green additives could be recommended as a reasonable replacement for non green additives for controlling biofilms in cooling towers, in accordance to the European Union s REACH regulation. 67 Published version http //www.scopus.com/record/display.url eid=2 s2.0 85030330388 origin=inward Articolo in rivista Springer 1590 4261 Annals of microbiology Annals of microbiology Ann. microbiol. Annals of microbiology. Annals of microbiology Print simona.rossetti ROSSETTI SIMONA francesca.dipippo DI PIPPO FRANCESCA