2. Presentation of classification of waste water and sewerage system of the town.The concept of the drainage-Waste water: water used for different needs there and the more dirt, alter the chemical-physical properties-born than was originally called wastewater-Drainage: a combination of equipment, engineering works and the means to collect the waste water in the place of formation, lead-shipping to the works of cleaning, disinfection and discharge of waste water was cleaned out receiving sources.The types of waste water, the type of drainage system a. the types of waste water -Waste water -Manufacturing wastewater -Rain water b. types of drainage systems -Drainage system -Separate sewer system -Half private drainage systemThe parts of the waste drainage system diagram -Currency and led the party in the House, -Drainage network outside the home -Pumping stations and pressure pipelines -The heating process of cleaning -Drain and discharge water into the mouth to the source.
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