Abstract
The technological process of Galvano-chemical protection, according to qualitatively-quantitative characteristics, represents one of the most complex contaminants in wastewater. A large number of contaminants (metal ions, cyanides, acids, bases, grease and oils, organic solvents, surfactants, phosphates, etc.), found in galvanic wastewater are treated through conventional methods (chemical oxidation and reduction, neutralization, sedimentation, coagulation and flocculation). The reason why galvanic wastewater treatment systems in the Republic of Serbia are conventional is of economic nature. The present study has been undertaken to evaluate the performance of Sewage Treatment Plant located at Aleksinac, Company of "Frad" district which is based on Sequential Batch Reactor process. Performance of this plant is an essential parameter to be monitored as the treated effluent is discharged into the Moravica River. The Performance Evaluation will also help for the better understanding of design and operating difficulties (aeration, blowers, etc.) in Sewage Treatment Plant. Research goal: The efficiency of sewage treatment plants can be illustrated by a study on the evaluation of pollutant levels of the influent and the effluent at the treatment plant of sewage treatment plants discharging into the environment.
Highlights
Water is one of the most important and sensitive natural resources whose quality hasn’t been taken care of for a long time in Serbia and worldwide
The steps and mechanisms in the treatment of wastewater created in the process of galvano-chemical protection are shown in the research
The research represents a summary overview of the ecological aspect of the treatment of wastewater made in the process of galvanochemical protection of metal parts as a result of adherence to the legislation of the Republic of Serbia in the area of wastewater
Summary
Water is one of the most important and sensitive natural resources whose quality hasn’t been taken care of for a long time in Serbia and worldwide. The technological process of galvano-chemical protection, according to qualitatively-quantitative characteristics represents one of the most complex wastewater contaminants [2]. This process demands a successive immersion of objects into multiple solutions where various chemical and electrochemical processes occur. Many methods for the treatment of this type of effluent have been developed with the view to reduce the negative impact on the working and living environment and indirectly on human health Some of these methods are chemical oxidation and reduction, neutralization, sedimentation, coagulation and flocculation [11, 12]
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