Process device for waste water generated in tobacco sheet production
A technology for the production of waste water and tobacco flakes, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., which can solve the problems of substandard waste water discharge, large area and high operating costs. , to achieve the effect of removing chroma and odor, reducing the workload of mud cleaning, and improving the B/C value
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Embodiment 1
[0038] 2000 tons / day tobacco sheet production wastewater treatment method.
[0039] The water quality indicators of the tobacco flake production wastewater are shown in Table 1 after determination.
[0040] Table 1 Water quality indicators of wastewater from tobacco flake production
[0041] serial number project unit measured value serial number project unit measured value 1 BOD 5 mg / L 5800 5 Chroma times 15000 2 COD Cr mg / L 25000 6 Ca 2+ mg / L 200 3 SS mg / L 15000 7 water temperature ℃ 50 4 pH value 6.2
[0042] (1) Slag removal
[0043] Wastewater from tobacco flake production is collected by pipelines and then discharged into mechanical coarse grid pool 1. Coarse grids are set in the pool to isolate and remove medium and coarse floating objects in the sewage to prevent subsequent processing equipment from clogging, and then through the lifting pump 22, Elevate the waste water f...
Embodiment 2
[0064] The treatment method of 5000 tons / day tobacco flake production wastewater.
[0065] The water quality indicators of the tobacco sheet production wastewater were determined and shown in Table 3.
[0066] Table 3 Water quality indicators of wastewater from tobacco flake production
[0067] serial number project unit measured value serial number project unit measured value 1 BOD 5 mg / L 2000 5 Chroma times 25000 2 COD Cr mg / L 8000 6 Ca 2+ mg / L 300 3 SS mg / L 6200 7 water temperature ℃ 55 4 pH value 6
[0068] (1) Slag removal
[0069] Wastewater from tobacco flake production is collected by pipelines and then discharged into mechanical coarse grid pool 1. Coarse grids are set in the pool to isolate and remove medium and coarse floating objects in the sewage to prevent subsequent processing equipment from clogging, and then through the lifting pump 22, Elevate the waste water fr...
Embodiment 3
[0090] 8000 tons / day tobacco sheet production waste water recycling method.
[0091] The water quality indicators of the tobacco sheet production wastewater were determined and shown in Table 5.
[0092] Table 5 Water quality indicators of wastewater from tobacco flake production
[0093] serial number project unit measured value serial number project unit measured value 1 BOD 5 mg / L 600 5 Chroma times 20000 2 COD Cr mg / L 2000 6 Ca 2+ mg / L 400 3 SS mg / L 1000 7 water temperature ℃ 50 4 pH value 6.5
[0094] (1) Slag removal
[0095] Wastewater from tobacco flake production is collected by pipelines and then discharged into mechanical coarse grid pool 1. Coarse grids are set in the pool to isolate and remove medium and coarse floating objects in the sewage to prevent subsequent processing equipment from clogging, and then through the lifting pump 22, Elevate the waste water from to...
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