Composite constructed wetland system and pretreatment method for drinking water source
A constructed wetland system and constructed wetland technology are applied in the field of drinking water source compound constructed wetland system and pretreatment, which can solve the problems of difficult advanced treatment, high cost of advanced water treatment, low removal efficiency, etc. Long-lasting, improved removal effect
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[0012] Specific implementation mode 1: Combination figure 1 , figure 2 , image 3 , Figure 5 , Figure 6 This embodiment will be described. This embodiment consists of raw water 1, first water delivery pipeline 2-1, second water delivery pipeline 2-2, third water delivery pipeline 2-3, fourth water delivery pipeline 2-4, and fifth water delivery pipeline 2- 5. Grit tank 3. Two first tank bodies 4-1, second tank bodies 4-2, first inlet water collection tank 5-1, second inlet water collection tank 5-2, first deflector 6-1. The second baffle 6-2, two upper and lower baffled underflow constructed wetlands 7, the first effluent water collection tank 8-1, the second water collection tank 8-2, the surface flow wave-shaped constructed wetland 9 and the perforated collection The water pipe 14 is composed of a first water inlet sump 5-1 at the left end of the first pool body 4-1, and a first water outlet sump 8-1 at the right end of the first pool body 4-1. Between the first inlet water c...
Example Embodiment
[0014] Specific implementation manner 2: In this embodiment, the length-to-width ratio of the upper and lower baffled underflow constructed wetland pool body is 4:1, the bottom slope is controlled within 1 to 4%, and the water depth is 0.6 to 0.7m.
Example Embodiment
[0015] Specific embodiment 3: The diameter of the large gravel in the mixed layer of large gravel and ceramsite is 50-60mm, and the diameter of ceramsite is 4-5mm; the diameter of the small gravel in the mixed layer of small gravel and ceramsite is 20-30mm , The diameter of ceramsite is 3~3.5mm.
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