A device and process for reducing and stabilizing sludge by interplanting plants
A stabilized and plant-based technology, applied in biological sludge treatment, dehydration/drying/thickened sludge treatment, etc., can solve the problem of investment shortage in sludge treatment and disposal
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Embodiment 1
[0039] Embodiment 1: as figure 1 , figure 2 shown
[0040] A device for reducing and stabilizing sludge by interplanting plants, consisting of a sludge concentration tank 1, a sludge feeding pipeline 2, an interplanting bed treatment tank 3, an anti-seepage layer for the bed, a bottom filter layer, and a filtrate collection Tube 4 and filtrate storage tank 5, wherein: the sludge concentration tank 1 is connected to the interseeding bed treatment tank 3 through the mud feeding pipeline 2 to form a sludge layer 15, and the bed anti-seepage layer is placed in the interseeding bed treatment tank 3 The bottom and its surrounding side walls, the bottom filter layer is placed on the bed anti-seepage layer at the bottom of the interplanting bed treatment pool 3, plants are planted in the interplanting bed body, and the filtrate collection pipe 4 is placed in the bottom filter layer, and the filtrate Collection pipe 4 is connected to filtrate storage tank 5, such as figure 2 As sh...
Embodiment 2
[0042] Such as image 3 The sludge interplanting plant recycling device of a certain sewage treatment plant shown is located next to the sludge dewatering machine room. The size is length × width × height = 20m × 10m × 1.7m. Soil, in spring, after planting reeds and cattails in the bed base cultivation soil (the planting ratio of reeds and cattails is 4:1), the planting density is 5 plants per square meter, watered regularly, and a small amount of sludge is added to provide growth needs Nutrition, after one month, the plant grows to more than 60cm, the survival rate exceeds 80%, and starts to throw sludge; the sludge comes from the sludge concentration tank 1, and the pipeline is connected from the bottom of the concentration tank to the interplanting bed treatment tank 3, and gravity is adopted The flow is controlled by the valve, and the dosage is controlled by the flow meter; the filtrate flows through the filtrate collection pipe 4 to the low-level filtrate storage tank 5 ...
Embodiment 3
[0045] Such as Figure 4 As shown, the sludge interplanting plant recycling device of a sewage treatment plant is located in the long-term planning area of the biological pool, far away from the sludge thickening tank 1 and the dehydration machine room, so the transfer pump 14 is used to transport and add. Set up two identical anti-seepage units, the size of which is length × width × height = 50m × 20m × 2m. The bottom is treated with anti-seepage according to the four-layer structure, and the permeable layer and the mother soil for planting are laid. In spring, after planting reeds and cattails in the bed base cultivation soil (the planting ratio of reeds and cattails is 5:1), the planting density is 10 plants per square meter, watered regularly, and a small amount of sludge is added to provide the nutrients needed for growth. After 25 days, , the plant grows to more than 55cm, the survival rate exceeds 75%, and starts to throw mud. The sludge comes from the sludge thicken...
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