Optimization management of installations at groundwater deironing and sewage treatment

Abstract

In modern conditions, the increase in anthropogenic pressure on the environment discharge of significant amounts of untreated or insufficiently treated wastewater into natural water bodies leads to a deterioration of water quality in sources of drinking water. Therefore, not only conceptual efforts to prevent environmental pollution and provide consumers with quality drinking water are of great importance, but also the mechanisms for their implementation should be revealed. In this aspect, one of the main tasks is the introduction of the latest tools, materials and designs of water treatment facilities and quality control of water supplied to consumers or discharged into natural sources. Pollution entering water bodies changes their physicochemical and biological parameters and leads to complications in the operation of water supply facilities. The solution of these problems is facilitated by the use of advanced technologies for the treatment of both drinking and wastewater. No less important is the establishment of optimal modes of operation of water treatment plants, which ensures maximum efficiency of their operation, conservation of water and energy resources, obtaining guaranteed quality of purified water. The article substantiates the use of natural mechanisms in the processes of deironing of water from underground sources and wastewater treatment. The generalized analysis of the operation of the units with bioreactor and contact clarifier filter during the filter cycle revealed that the standard quality of filtered water is ensured only between the minimum Gmin and maximum Gmax specific dirt content of the filter. It is offered to carry out automation of management of work of such installations at control by the differential pressure gauge of the maximum losses of pressure on the filter corresponding to Gmax value, with its switching to the washing mode. When washing the filter, it is necessary to reduce the specific amount of activated sludge from Gmax to Gmin, controlling the duration of washing the specified intensity with a timer. The proposed measures provide significant savings in water and electricity costs during operation.