Papermaking wastewater advanced treatment and recycling device and method thereof
A technology for papermaking wastewater and advanced treatment, which is applied in processing wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. and other problems to achieve the effect of overcoming the unsatisfactory treatment effect, reducing treatment costs and reducing emissions
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Embodiment 1
[0050] A method for purification, regeneration and recycling of 150 tons / day papermaking advanced treatment wastewater.
[0051] The measured indicators of the papermaking advanced treatment wastewater are shown in Table 1.
[0052] Table 1
[0053] serial number
project
unit
measured value
serial number
project
unit
measured value
1
COD Cr
mg / L
186
4
Chroma
80
2
SS
mg / L
90
5
pH
7.5
3
Turbidity
NTU
6
6
Conductivity
μS / cm
5200
[0054] The advanced papermaking waste water is input into the nano-catalyzed electrolytic tank 13 through the water pump 12 at a flow rate of 7.5T / h through the water pipe. When the system runs smoothly, it enters the buffer tank 14, and enters the filter tank 17 through the water pump 15 and valve 16 for filtration to remove the impurities in the water. Solid impurities, plankton...
Embodiment 2
[0063] Purification and recycling method of 3000 tons / day papermaking advanced treatment wastewater.
[0064] Described papermaking advanced treatment waste water is measured, and index is as shown in table 4:
[0065] Table 4
[0066] serial number
project
unit
measured value
serial number
project
unit
measured value
1
COD Cr
mg / L
109
4
Chroma
120
2
SS
mg / L
75
5
pH
7.5
3
Turbidity
NTU
6
6
Conductivity
μS / cm
3200
[0067]The advanced papermaking waste water is input into the nano-catalytic electrolytic tank 13 through the water pump 12 at a flow rate of 150T / h. When the system is running smoothly, the wastewater electrolyzed by the nano-catalytic electrolytic tank 13 enters the buffer tank 14, passes through the water pump 15 and the valve 16, and enters the The multimedia filter tank 17 filters and remo...
Embodiment 3
[0076] Purification and recycling method of 6000 tons / day papermaking advanced treatment wastewater.
[0077] The papermaking advanced treatment wastewater has been measured, and the indicators are as shown in Table 7:
[0078] Table 7
[0079] serial number
project
unit
measured value
serial number
project
unit
measured value
1
COD Cr
mg / L
234
4
Chroma
110
2
SS
mg / L
73
5
pH
7.5
3
Turbidity
NTU
6
6
Conductivity
μS / cm
3700
[0080] Wastewater from papermaking advanced treatment is input into the nano-catalyzed electrolytic tank 13 through the water pump 12 at a flow rate of 300T / h. The microfiltration filter tank 17 filters and removes solid impurities, plankton, bacteria and colloids in the water to obtain purified waste water.
[0081] The working voltage of nano-catalytic electrolysis is 98-100V, the ...
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