Environmental Impact of Water from Wastewater Treatment Plants

摘要

The results of a study of the impact of wastewater within watertreatment plants on the environment are presented. Therefore, the quality of wastewater isanalysed from one of the Romanian municipalities. The water samples were collected intwo campaigns at 2, 4, 8 or 12 hours interval. All samples were analysed to obtain mainphysical-chemical parameters and the obtained results are compared with the qualityparameters provided in the Regulations for wastewater discharge in the sewers of urbanareas. The maximum accepted values for various chemicals are exceeded in the study andcontaminants are introduced into the environment that causes instability and disorder tothe ecosystem. The impact of wastewater on air quality is also analysed and the sourcesof air pollution are identified: biochemical processes and vaporization from wastewatertreatment plants. The nature and intensity of the sewage attack on the environment aremainly determined by the chemical agents resulted from the technological processescarried out, especially, within industry.