A composite system for tail water purification and bypass of sewage plants applied to replenishment of closed rivers
A composite system and sewage plant technology, applied in the field of river ecological water supply system, can solve problems such as restricting river water quality, and achieve the effects of promoting the restoration of aquatic ecological environment, improving water quality environment, and enhancing system biodiversity
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Embodiment 1
[0036] Such as figure 1 As shown, the present invention provides a sewage plant tail water purification bypass composite system applied to water replenishment in closed rivers, including a water storage tank 2, a lift pump 3, a dike top treatment unit 4, a slope protection purification unit 5 and a water tank located on the dike top water distribution mains 9;
[0037] Such as Figure 4 and 5 As shown, the two ends of the storage tank 2 are respectively provided with a water inlet and a water outlet, and the water inlet is connected to the tail water discharge pipe of the sewage treatment plant 1, and the water outlet is connected to a water outlet pipe, and the water outlet end of the water outlet pipe is located at the main water distribution channel 9 Above, the water flow enters the main water distribution channel 9 in the form of falling water, and the lift pump 3 is set on the outlet pipe; N diversion baffles are arranged in the storage tank 2, so that N+1 water passag...
Embodiment 2
[0043] The tail water purification bypass composite system of a sewage plant applied to replenishment of closed rivers in Example 1 is used, and the above system is implemented in two cases where the water quality of the river is better than the water quality of the tail water or worse than the water quality of the tail water.
[0044] When the water quality of the river in section 6 is better than that of the tail water, the tail water of the sewage treatment plant enters the storage tank 2 first, and the tail water flows through the S-shaped water corridor. The water storage tank 2 has a larger pool capacity, and the tail water can be Stay in the water storage tank 2 for a sufficient time. The water storage tank is also used as an anaerobic pretreatment system for the tail water. The tail water flows into the water passage and then stays in the water passage. The total hydraulic retention time is 40 to 60 minutes. Set up the mud and slag discharge tank at the bottom of the wa...
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Abstract
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