Composite medium biological filter sewage treatment method and matched device
A sewage treatment device and composite media technology, which is applied in the field of composite media biological filter sewage treatment devices, can solve the problems of high investment costs and high energy consumption, and achieve the effect of strong water permeability
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Embodiment 1
[0027] A sewage treatment method, said method comprising the steps of:
[0028] (1) Water distribution: The sewage is evenly distributed into the treatment device through the water distribution pipe;
[0029] (2) Purification treatment: Sewage seeps down, fully contacts with the filler in the treatment device and undergoes physical, chemical and biological actions. Organic substances, nitrogen, phosphorus and other substances in the sewage are adsorbed by the filler and further degraded and transformed;
[0030] (3) The infiltrated sewage collects at the bottom of the treatment device and is finally discharged from the outlet of the treatment device.
[0031] refer to figure 1 , a composite medium biological filter sewage treatment device for realizing the above method, comprising a perforated water distribution pipe 1, a filter main body 8, a packing layer, a vent pipe 7, an outlet pipe 5, a water collection chamber 6 and an aeration pipe 4; the packing The layer is compose...
Embodiment 2
[0041] The volume of the composite media biological filter sewage treatment device is 2m 3 , the thickness of the rapid percolation layer is 10-15cm, the thickness of the composite medium mixed layer is 8-10cm, and the height of the water collection chamber is 30cm; the composition of the rapid percolation layer is modified zeolite, vermiculite, ceramsite and bamboo forest particles, of which The volume ratio of each component is 10-40:15-20:10-30:15-30, and a total of 7 layers are filled. The thickness and component ratio of each layer are different. The percolation layer at the bottom and upper part of the device is slightly If it is thicker, the corresponding ratio of zeolite and vermiculite is also slightly larger; the main components of the composite medium mixed layer are yellow sand, soil, fly ash, fermented organic matter, bamboo chips, and bamboo charcoal, and some high-efficiency microbial strains are mixed at the same time. The volume ratio of each component is 10-3...
Embodiment 3
[0043] The volume of the composite media biological filter sewage treatment device is 8.8m 3 , the thickness of the rapid percolation layer is 15-20cm, the thickness of the composite medium mixing layer is 5-10cm, and the height of the water collection chamber is 30cm; the composition of the rapid percolation layer is zeolite, limestone, sandstone, resin, ceramsite and bamboo particles , where the volume ratio of each component is 10-30:5-20:1-10:10-15:10-20:10-30, a total of 7 layers are filled, and the thickness and component ratio of each layer are different , the percolation layer at the bottom and upper part of the device is slightly thicker, and the proportion of corresponding components such as zeolite, limestone and ceramsite is also slightly larger; the main components of the composite medium mixed layer are soil, fly ash, biological straw, bamboo Chips, bamboo charcoal, and some high-efficiency microbial strains are mixed at the same time, and the volume ratio of eac...
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