Statistical Analysis of the Physicochemical Characteristics of Urban Wastewater Treatment Plants from Romania

Autor: Daniela Ecaterina Zeca, Cristian Muntenita, Carmelia Mariana Dragomir Balanica, Maricica Stoica
Rok vydání: 2020
Předmět:
Zdroj: Revista de Chimie. 71:100-107
ISSN: 2668-8212
0034-7752
DOI: 10.37358/rc.20.10.8354
Popis: The analysis of several criteria for influent and effluent of urban sewer water treatment plant in south and south east of Romania, has a crucial role in establishing the correlations between these factors, and furthermore to assess the efficiency of the treatment system. Increasing urbanization degree and its complexity has made studies of the pollution impact appraisal to be a necessity. The mean values of the parameters measured from the wastewater plant influent like temperature, pH, suspended solids, chemical oxygen demand and biological oxygen demand vary from 17.13 � 0.23�C, 7.68 � 0.04, 234.72 � 1.55 mg/L, 396.42 � 0.76 mg/L, and 190.29 � 15.23 mg/L, respectively. The values of the above-mentioned quality indicators after the water treatment are 17.11 � 0.14�C, 7.56 � 0.03, 22.6 � 1.02 mg/L, 62.95 � 0.16 mg/L and 20.49 � 9.06 mg/L. Correlation study intended to define the feasible dependence among the evaluated parameters indicated that there were positive and negative correlations between the influent and effluent. The study conclusions point out the certitude that exist major optimizations in wastewater property after treatment processing.
Databáze: OpenAIRE