Modern methods for surface wastewater treatment

Oleg Primin,Galina Varyushina

doi:10.1051/matecconf/201817809020

Abstract

The article gives the characteristics of the system of removal and purification of surface wastewater in Moscow. One of the features of this system is the large-scale use of hydrographic network of the city as elements of the drainage network. Currently improvement of the ecological state of water objects is only possible if to reduce anthropogenic load on them and watersheds, to recover self-cleaning abilities of water bodies and the to protect groundwater from contamination. The article reveals results of research, and contains technological parameters for facilities of surface sewage water purification and recommendations to improve their operation. Article also gives technical solutions to upgrade operated wastewater treatment systems and to ensure the achievement of required standards of treatment of surface runoff when dilution in water. Along with proposals for the reconstruction and construction of wastewater treatment plants with the classical technology of surface water treatment, it is necessary to consider the principle of decentralization with the use of local treatment facilities.

Highlights

Centralized collection and treatment of surface runoff is an urgent environmental task
At the present stage of reforming the regulation system of activities that have a negative impact on the environment the following technological issues for proposed wastewater treatment plants should be taken into account: - The best available technologies in the field of wastewater treatment, - Category and purpose of the water body, - Hydraulic and chemical indicators of river water quality, formed under the influence of natural and man-made factors, - Permissible anthropogenic load in order to preserve and restore the water body for safe water use of the population
When determining engineering and technical measures for the construction and reconstruction of treatment facilities of surface runoff, it is necessary to take into account that for surface runoff there is no universal cleaning technology due to the specific features of its formation and the different degree of pollution of urban areas of various functional purposes

Summary

Introduction

Centralized collection and treatment of surface runoff is an urgent environmental task. Studies have found that the surface runoff from the economically developed areas of urban settlements, organized diversionary and diffuse, is one of the main sources of man-made pollution and degradation of water bodies located in the city limits. A special feature of the organization of the system of removal and treatment of surface runoff in Moscow is the large-scale use of the hydrographic network of the city as elements of the drainage network. It is positioned as a "collector-river network of the city", which covers up to 90% of Moscow in its old borders. – 13 snow-melting points for utilization of snow mass during winter cleaning of city streets and highways

Features of technologies for surface wastewater treatment

Main solutions

Findings

Conclusions