Naslov
Brewers' spent grain and grape seed in wastewater treatment

Autori
Nujić, Marija ; Habuda-Stanić, Mirna

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

Izvornik
2nd International and 6th Croatian Scientific and Professional Conference WATER FOR ALL / Habuda-Stanić, Mirna - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2016, 99-100

ISBN
978-953-7005-39-9

Skup
2nd International and 6th Croatian Scientific and Professional Conference WATER FOR ALL

Mjesto i datum
Osijek, Hrvatska, 18.03.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
brewers' spent grain; grape seed; nitrate; ion exchange; wastewater

Sažetak
Pollution of water resources by nitrogenous compounds, such as nitrate, nitrite and ammonium presents significant environmental and health problem. Therefore, it is important to remove them, especially from wastewater treatment effluents in order to contribute to healthier environment. The most common method for nitrate removal is ion exchange that implies usage of various resin types. Besides resins, during last decades many studies investigated the possibility of nitrate removal by adsorption on natural adsorbents of vegetative and animal or mineral origin. In this research, the removal i.e. adsorption of nitrate from wastewater generated from dairy industry onto modified brewers' spent grain and grape seed was investigated. Obtained adsorption capacities were expressed through adsorption equilibrium models (Freundlich's and Langmuir's adsorption isotherms). The residual concentration of nitrate after the adsorption was determined by spectrophotometric method with 2.6-dimethylphenol. The adsorption fitted well with the Freundlich model (brewers' spent grain and grape seed). This study can contribute to the development of new low-cost adsorbent for efficient nitrate removal from wastewater.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA