Enhanced palm micro-ecological filter bed system
A technology of micro-ecology and filter bed, applied in the direction of biological treatment devices, chemical instruments and methods, sustainable biological treatment, etc., can solve the problems of low treatment capacity, poor ecological coordination, poor landscape effect, etc., achieve good water retention, improve The effect of processing capacity and improving the survival rate
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Embodiment 1
[0032] Such as figure 1 As shown, the experimental process is used to treat domestic sewage in a certain river in Hangzhou. Among them, the height of the planting layer is 10cm, the height of the palm filter layer accounts for three quarters of the height of the entire filter bed, and the height of the perforated wall is 10cm; The pore size is 50mm; the filter bed adopts the form of overall aeration, followed by continuous monitoring for several days, and the average removal rate of effluent COD is 73%, the average total nitrogen removal rate is 55%, and the average total phosphorus removal rate is 68%. %.
Embodiment 2
[0034] Such as figure 1 As shown, the experimental process is used to treat domestic sewage in a certain river in Hangzhou. Among them, the height of the planting layer is 10cm, the height of the palm filter layer accounts for 1 / 2 of the height of the entire filter bed, and the height of the perforated wall is 5cm; The pore size is 10mm; the filter bed adopts the form of local aeration, and the aeration pipe is opened every 1 meter, and then continuously monitored for several days. Through the test, the average removal rate of COD in the effluent is 51%, and the average removal rate of total nitrogen is 31%, and the average removal rate of total phosphorus was 47%.
Embodiment 3
[0036] Such as figure 1 As shown, the experimental process is used to treat domestic sewage in a certain river in Hangzhou. Among them, the height of the planting layer is 30cm, the height of the palm filter layer accounts for three-quarters of the height of the entire filter bed, and the height of the perforated wall is 20cm; the filter layer is filled with a 1:1 mixture of goethite and hematite. The ratio is 10:1, and the pore size of the hole through the wall is 50mm; the filter bed adopts the form of overall aeration, followed by continuous monitoring for many days. Through the test, the average removal rate of COD in the effluent is 79%, and the average removal rate of total nitrogen is 52%. %, the average removal rate of total phosphorus was 61%.
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