Evaluation of Adsorption Capacity of Chitosan-Citral Schiff Base for Wastewater Pre-Treatment in Dairy Industries
Journal Title: Ecologia Balkanica - Year 2017, Vol 9, Issue 1
Abstract
In this study, we aimed to evaluate the adsorption capacity of the Schiff base chitosan-citral for its application in dairy wastewater pre-treatment. Chemical oxygen demand (COD) reduction was the factor used to evaluate the adsorption efficiency. The maximum COD percentage reduction of 35.3% was obtained at 40.0 °C, pH 9.0, adsorbent dose 15 g L-1, contact time 180 min and agitation speed 100 rpm. It was found that the Langmuir isotherm fitted well the equilibrium data of COD uptake (R2 = 0.968), whereas the kinetic data were best fitted by the pseudo-second order model (R2=0.999). Enhancement of the adsorption efficiency up to 29.8% in dependence of the initial COD concentration of the dairy wastewater was observed by adsorption with the Schiff base chitosan-citral adsorbent compared to the non-modified chitosan at the same experimental conditions. The results indicated that the Schiff base chitosan-citral can be used for dairy wastewater physicochemical pre- treatment by adsorption, which might be applied before the biological unit in the wastewater treatment plant to reduce the load.
Authors and Affiliations
Desislava Tsaneva, Milena Nikolova, Tsvetko Prokopov, Albena Stoyanova, Panteley Denev
Keywords
Related Articles
- EP ID EP594906
- DOI -
- Views 148
- Downloads 0
On the Gastropod Species Diversity of the “Izgoryaloto Gyune” Nature Reserve (Western Rhodopes, Bulgaria)
In the “Izgoryaloto Gyune” reserve (Bulgaria, West Rhodopes) there are a total of 24 known species of snails after present study. Two species (Pomatias elegans and Cecilioides janii) which occurrence in the West Rhodopes...
Blood Cells Morphology and Erythrocytes Count of Two Freshwater Turtles, Emys orbicularis and Mauremys rivulata, from Turkey
In the present study, the peripheral blood cells (erythrocytes, leucocytes and thrombocytes) morphology of Emys orbicularis and Mauremys rivulata were examined in the blood smears prepared using Wright’s stain and the er...
Preliminary Data on the Plant and Vertebrate Animal Diversity in the Area of Dedovo Village (West Rhodopes Mts.)
Dedovo Village (Rodopi Municipality, Plovdiv District) is located at 25 km from Plovdiv City in the Western Rhodopes Mts., at an altitude of 1000 to 1060 meters. Its proximity to the city and relatively preserved natural...
Some Ecological and Behavioral Aspects of the Tomato Leaf Miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)
Preliminary investigations were carried out to determine the insect behavior of Tuta absoluta towards different factors. Observations showed that the moth is nocturnal in habits. It is most active at dusk and dawn and re...
Food Composition of the Snake-Eyed Lizard, Ophisops elegans Ménétriés, 1832 (Reptilia: Sauria: Lacertidae) from Gökçeada (Imbros), Turkey
The study presents data on the food composition of the snake-eyed lizard (Ophisops elegans), from Gökçeada (Imbros), Çanakkale, Turkey. A total of 94 preys were determined in the digestive systems of 20 individuals (10 m...