According to the person in charge of Chongqing Water Group, as a by-product of sewage treatment, sludge contains a large amount of harmful substances such as bacteria, parasites, and heavy metals. If the landfill is simply buried in the traditional way, it will not only occupy a large amount of land and cause adverse effects on the normal operation of the landfill, but also cause serious secondary pollution due to the high concentration of pollutants in the sludge. It is reported that because undried sludge can easily clog the garbage leachate collection system and affect the normal operation of vehicles and landfill machinery, some municipal solid waste landfills in Chongqing have started rejecting sludge, causing sewage treatment plants to generate daily. The large amount of sludge can only be accumulated in situ and the secondary pollution is more serious. In the future, as the scale of sewage treatment increases, the amount of sludge generated each day will also increase. According to industry estimates, the total amount of sludge produced by the sewage treatment plants in the main urban area of ​​Chongqing will reach 988 cubic meters per day in 2010 and 2,380 cubic meters per day in 2020; if we count the Three Gorges reservoir area and its affected areas, we will In the year, the city's sewage treatment plant produced 1,707 cubic meters of sludge per day and climbed to 3,244 cubic meters/day by 2020.
As a project construction project for sludge treatment and disposal in Chongqing in the future, the company will first establish a sludge treatment center for the sewage treatment plants in Chongqing, with a designed treatment capacity of 630 cubic meters per day, which will be put into operation before 2010. In accordance with the relevant plans of the Chongqing Municipal Government, after this, Chongqing Water Group will also build four sludge treatment centers in the main city area to ensure the normal operation of the city's sewage treatment plants, and to manage and protect the Three Gorges reservoir area and the middle and lower reaches of the Yangtze River. Water quality, ecological environment.
The filter press pump is summarized as a special pump specially used for the filling and feeding of the filter press.
In fact, the working principle of the filter press pump is very simple. The general principle is to adopt a unique hydraulic and impeller installation method.
When the filter press feeds, it can realize large flow and small flow according to the change of feed resistance of the filter press.
When using a filter press pump, there are many details that need to be paid attention to, ignoring one detail may lead to the scrapping of the entire filter press
1. Before starting the filter pump, inject liquid into the pump, close the valve at the outlet and turn on the power.
This step is to discharge the gas from the filter press pump, which is the same principle as other pumps, otherwise the pump will be full of other open filter press pumps, which will cause the pump to run dry and burn out.
2. After turning on the power, check whether the steering of the filter press pump is correct. Generally, the steering of the filter press pump is seldom fixed, so you need to check this problem when you run it.
3. The machine runs for 5 to 10 minutes for trial operation, and it runs normally when there is no abnormal phenomenon.
4. After the work is finished, when you are ready to close, first close the valve at the outlet, and then discuss disconnecting the power supply.
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Shenzhen Hongfa Environmental Protection Equipment CO., LTD , https://www.hongfafilterpress.com