In this graduation course design of the main tasks, the need for accurate calculation or accurate description of the design manual, the total layout of the sewage treatment plant, the total elevation of the sewage treatment plant, sewage treatment plant flow chart, sewage treatment plant One of the various structures, the layout of the total pipeline plan. In a separate building structure design drawings, the main task is to complete the structure of the plan and profile.

Sewage treatment is mainly to the effective collection of sewage to solve, to reduce emissions of pollutants in the water content and pollutant emissions, and thus can control the environmental protection, to achieve effective management purposes.

The city sewage treatment plant project scale is relatively large, with the displacement to reach the scale of 50,000 tons / day. The sewage  

treatment plant sewage treatment process: from the coarse grille to the sludge to enhance the pump room, and then fine grille filter into the grit chamber for precipitation reaction. After the precipitation of sludge and water by the oxidation ditch for processing work, to the secondary sedimentation tank and related work. And finally to achieve the state of the water. Specifically, the sludge discharge process is: after the second sedimentation tank again after the precipitation processing, all the remaining sludge first into the concentration pool, the role of the pool is to squeeze it, compression, and thus make the greatest efforts will be Sludge and water. And then into the sludge nitrification tank to carry out the relevant work response. After the reaction of the sludge and then into the filter inside a series of dehydration treatment, the final sludge to be transported to the relevant waste treatment plant for landfill, so as not to our living environment caused unnecessary harm to the environment.

The choice of graduation project is mainly the use of sewage treatment, through the sewage collected for processing, and further reduce the amount of pollutants in the discharge of water, so that you can achieve environmental protection objectives.

The main site of the sewage treatment structure is the sewage treatment plant, including the structure of the sewage treatment structures and life services (auxiliary form).

The work of the sewage treatment plant is not as complicated as the imagination, that is, through the coordination of the various professional (such as the professional, structural and professional), with each other to complete. But also need to collect detailed information on the city's sewage, rainfall, terrain and so on.

The design is to use the knowledge we have learned to combine with practice to promote the ability to solve practical work, and to further consolidate and improve the objectives of the work.

In the design process, the need to understand the detailed background with the city sewage information, and to collect relevant information, is to be able to successfully ensure the construction design, the comprehensive development of sewage treatment links, to lay a good foundation for it.

In addition, in the design process but also in stages to complete the various sewage treatment plant project operating costs, construction investment, and geographical location and so on.

Design brochures: This design specification from which to explain the city profile, the scale of the project, design budget, water quality and water, process, design parameters and the size and number of major structures and so on; the instructions should be from the simple description, more attention On the sketch and the table of the description, require the work of neat, paragraphs clear.

Design calculations: calculation of each major building, elevation calculation of sewage treatment plants, graphic design, selection of major equipment, etc.

Design drawings: sewage treatment plant a total layout plan, a sewage treatment plant elevation map a. Where the location and dimensions of the inpidual structures in the overall plan plan should be properly marked; the layout plan of the sewage treatment plant, which includes the plane position, pipe diameter and the identification of the length and slope of each pipe; the layout of the sewage treatment plant To mark the top and bottom of each structure and the design of the surface elevation and ground elevation.