The sewage generated in urban life has seriously affect […]
The sewage generated in urban life has seriously affected our lives. In the process of sewage treatment, depending on the economic development strength and scale of different cities, the selection criteria for sewage treatment processes in urban sewage treatment construction will also exist. Partial differences. How to choose urban sewage treatment technology, I believe many people are not very understanding, let's take a look at it.
1. The current urban sewage treatment method adopts the traditional activated sludge method, which often has high capital cost, high operating cost, large energy consumption, complicated management, and easy sludge swelling, and the process equipment cannot meet the requirements.
2. With the strict strictness of sewage discharge standards, the requirements for the discharge of nitrogen, phosphorus and other nutrients in sewage are high. The traditional sewage treatment process with nitrogen and phosphorus removal functions is mainly activated sludge method, which often needs to be A plurality of anaerobic and aerobic reaction tanks are connected in series to form a multi-stage reaction tank, and the purpose of nitrogen and phosphorus removal is achieved by increasing the internal circulation, which is necessary to increase the cost and energy consumption of the capital investment and make the operation management more complicated.
3. At present, the treatment of urban sewage is mostly concentrated. The investment of huge sewage collection system far exceeds the investment of the sewage treatment plant itself. Therefore, a large-scale sewage treatment plant is built to concentrate on domestic sewage and reuse it from sewage. Angle is not necessarily a desirable solution. Many places have begun to use domestic sewage treatment equipment, which has a good treatment of sewage.
4. According to the problems faced by domestic sewage, we should design a reasonable plan for treatment, and adopt suitable domestic sewage treatment equipment to make our domestic sewage be treated well, which will also bring great help to the sustainable development of our life. It also provides us with a safe and healthy living environment.