E3S Web Conf.
Volume 17, 20179th Conference on Interdisciplinary Problems in Environmental Protection and Engineering EKO-DOK 2017
|Number of page(s)||7|
|Published online||24 May 2017|
Comparison of the composition of wastewater from fruit and vegetables as well as dairy industry
Bialystok Technical University, Department of Technology in Engineering and Environmental Protection, 45E Wiejska Street, 15-351, Poland
* Corresponding author: firstname.lastname@example.org
The aim of the study was to compare the composition of wastewater from the facility producing fruit and vegetable juices and dairy processing plant in Podlasie province. Their composition is also influenced by processes of washing and disinfecting of production lines. The washing process moves solid, colloidal, and dissolved impurities to the wastewater, depending on the type of raw material processed and the technological process used. At the same time, cleaning and disinfecting components at the amounts difficult to determine, penetrate the wastewater. The seasonal oscillations in the quantity and quality of sewage composition originating from fruit-vegetable and dairy processing became a problem for many conventional wastewater treatment plants, to where they are discharged. Based on the survey, it was found that wastewater from the fruit and vegetable industry as well as dairy industry contained large amounts of organic matter expressed in BOD5 (fruits and vegetables processing from 860 to 3 200mg O2/dm3, dairy from 1 410 to 3 850 mgO2/dm3) and COD (fruits and vegetables processing from 919 to 3 700 mgO2/dm3, dairy from 1 680 to 5 420 mgO2/dm3). Significant differences were found in concentrations of nitrogen and phosphorus in compared raw wastewater.
© The Authors, published by EDP Sciences, 2017
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