Principal directions for improving process flow schemes and designs of units for surface runoff treatment

Summary

The issues of surface runoff treatment from the territories of communities of various functional purposes are considered, in particular, the improvement of process flow schemes and designs of low-capacity local treatment facilities of flow-through or storage type, that discharge the effluents into the public wastewater disposal systems and water bodies. The features of the organization of systems for the surface runoff disposal and treatment, as well as the provisions of the water and environmental legislation of the Russian Federation and design code that have come into force over the past 2 years are given. It is noted that in the context of the transition of the federal regulation of wastewater discharge to technological regulation based on the best available technologies, the scope of small-capacity facilities of flow-through and storage type tends to expand. This is due to the fact that the customers are allowed to use them while discharging surface runoff into the public wastewater disposal systems of the communities, provided the quality of effluents received by these systems comply with the regulatory requirements. Principal schemes of the flow-through and storage type facilities for surface runoff treatment in combination with tertiary treatment plants are given. Casings of underground tanks and vessels, including improved flow-through units for the primary mechanical treatment of surface runoff, are made of fiberglass pipes of increased ring stiffness and durability.

Key words

mechanical treatment , thin layer sedimentation , surface runoff , wastewater management systems , storage settling tank , treatment facilities of flow-through and storage type , filtration-sorption tertiary treatment , open hydraulic cyclone , fiberglass pipes

A modern laboratory – the most accurate facility of water quality management

Summary

The accredited Central laboratory of Ekaterinburg «Vodokanal» MUE is carrying out industrial laboratory control of the water quality in the public water supply and wastewater disposal systems in accordance with the requirements of the regulatory documents. The main tasks of the laboratory control at the water and wastewater treatment facilities are as follows – analyses of the raw and treated water quality, quality control of the supplied chemicals, evaluation of the treatment facilities operation at different stages, optimization of the process flows and selection of high efficient chemicals. The objects of the control are drinking water, wastewater, water from the underground and surface water sources, chemicals, wastewater sludge, sludge from the treatment facilities. The objects of the control are analyzed for microbiological, parasitological, virological, general chemical, inorganic, organic, hydrobiological and radiological parameters. The upgrade of the instrumentation stock is described; the information on the advanced analytical instruments used in the Central laboratory is presented.

Key words

control of water quality , domestic water supply , wastewater management systems , monitored object , analytical laboratory , instrumentation stock