Optimized CAST domestic sewage sludge reduction control system and working method
A control system and domestic sewage technology, applied in the direction of control/regulation system, non-electric variable control, liquid level control, etc., can solve the abnormal phenomenon that there is no research on the control of sludge concentration reduction, the inability to deal with the reduction of sludge concentration, and the inability to apply and other problems, to achieve the effect of convenient and quick regulation of the operating system, reduction of sludge, and improvement of operational stability
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[0029] In order to make the purpose, technical solution and advantages of the invention clearer, the invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the invention, not to limit the invention.
[0030] The invention is based on the practical research of sludge reduction in a sewage treatment plant using the CAST process to treat domestic sewage. like figure 2 As shown, the CAST control system includes a water inlet tank 1, a reaction tank 3 and a water outlet tank 6 connected in sequence by pipelines. A sewage lifting pump 2 is arranged between the water inlet tank 1 and the reaction tank 3 . The CAST reaction pool is divided into two areas, A and B: A is the biological selection area, and B is the main reaction area. The volume ratio of the two areas is about 1:5~1:7. In this embodiment, it is preferably 1:6.
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