Abstract
The paper is devoted to the study of small wastewatertreatment plants, in particular the study of wastewater treatment processes with the wastewater with low concentration of organic contaminations entering treatment plants. The primary goal of the study is to select the reactor operation mode to ensure the deep biological treatment quality of treated wastewater. The three-step experiment has been conducted in a licensed laboratory using high quality equipment. The results of the experiment and the analysis of the data obtained are presented.
Highlights
The environmental pollution and the contamination of water bodies in particular is the major global problem at the moment
The amount of wastewater delivered to aeration and activated sludge plants in the Russian Federation in many cases exceeds their rated capacity, resulting in deteriorating treatment quality and sanitary conditions of water bodies
If concentration of suspended solids and organic matter in wastewater is low, there will be no need for a primary sedimentation tank
Summary
The environmental pollution and the contamination of water bodies in particular is the major global problem at the moment. It is necessary to reduce the cost of reconstruction methods as much as possible and place the reconstructed facilities in the previously allocated areas. If concentration of suspended solids and organic matter in wastewater is low, there will be no need for a primary sedimentation tank. This will allow doubling the capacity of the wastewater treatment plant without using additional territory [5-8]
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