An aerobic tank is to create an aerobic environment (dissolved oxygen in 2-4), conducive to the growth of well-fed microorganisms. Its role is aerobic activated sludge adsorption, degradation of organic matter. Usually oxidized compounds of carbon in organic matter oxidized to CO2 and H2O; oxidized nitrogen to nitrite nitrogen and nitrate nitrogen; phosphorus oxidized to phosphate ....... At the same time in an aerobic environment polyphosphate bacteria absorb several times the anaerobic conditions of phosphate.
Two, anoxic pool is to create anoxic environment (dissolved oxygen in less than 0.5), conducive to the growth of microorganisms in the lack of nutrients. Its role is activated sludge adsorption, degradation of organic matter. Usually nitrite nitrogen and nitrate nitrogen in the reflux mixture under the action of denitrifying bacteria to generate nitrogen release.
Three, anaerobic pool is to create an anaerobic environment (dissolved oxygen is about zero), conducive to the growth of anaerobic microorganisms. Its role is activated sludge adsorption, degradation of organic matter. Usually reflux mixture in the polyphosphate bacteria under the conditions of the release of phosphate.
Four, anoxic, anaerobic pools, aerobic pools of the interaction is a series of each other, each affecting the other.
Municipal wastewater plant operation and management, as in other industries, is the same as the operation and management of the whole process of sewage treatment for planning, organization, control and coordination of the work of the general term for a variety of enterprise management activities (for example: administrative management, technical management, equipment management, "three products "management), is a part of the enterprise's various business activities in the most important part.
City sewage plant operation management, refers to the acceptance of raw sewage from the purification process to discharge "standard" sewage management of the whole process.
The basic requirements of sewage treatment operation and management
The basic requirements of the operation and management process of urban sewage treatment plants are:
(1) production according to the needs of the first to meet the city and the water environment on the operation of sewage treatment plants should be the basic requirements to ensure that the dry treatment volume of sewage treatment to meet the standards.
(2) economic production at the lowest cost to deal with sewage, make it "standard".
(3) civilized production requires a new quality of operation and management personnel, advanced technology and civilized way, safe and good production and operation.
Water quality management
Water quality management of sewage treatment plants (stations) is the core of the work and purpose, is to ensure that the "standard" is an important factor. Water quality management system should include: water quality management organizations at all levels of responsibility system, "three levels" (refers to the environmental protection monitoring department, the head office and sewage station) inspection system, water quality discharge standards and water quality inspection system, water quality control and clean production system.
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