Additional electric field reinforced circulating type internal electrolysis device
A technology of additional electric field and internal electrolysis, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as the decline of treatment effect, strengthen the ability to treat industrial wastewater, alleviate the hardening , the effect of removing organic pollutants
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Embodiment 1
[0025] The wastewater leachate from a sewage reservoir is treated with an enhanced circulation internal electrolysis device. The characteristics of the wastewater are: dark yellow in appearance, with a chroma of about 1000 dilution times; COD=1200-1500mg / L; BOD 5 / COD=0.05~0.07; pH=5~6; SS=500~700mg / L; TDS=1700~1800mg / L; Cl-=7485-7615mg / L, conductivity=18000~19000μs / cm. The traditional internal electrolysis reactor (no circulation, no additional voltage, cast iron chips as iron filler) and the additional electric field enhanced circulation type internal electrolysis device (circulation backflow, additional voltage, sponge iron filler) run for 12 hours under the same conditions, and the COD removal rate Respectively 21% and 55%; chroma removal rates were 60% and 90%; BOD 5 / COD increased to 0.26 and 0.42 respectively (Wastewater biochemical conditions: BOD 5 / COD greater than or equal to 0.4). After 30 days of continuous operation, the iron / carbon packing of the traditional i...
Embodiment 2
[0027] Acid red 333 dye wastewater is treated with an enhanced circulation type internal electrolysis device. The characteristics of the wastewater are: the appearance is dark red, the chromaticity is about 2000 dilution times; COD=1200~1500mg / L; BOD 5 / COD=0.12~0.18; SS=0.38~0.44g / L; pH=5.5~7.5; the traditional internal electrolysis reactor and the additional electric field enhanced circulation internal electrolysis device run for 5 hours under the same conditions, and the COD removal rates are 30 % and 75%, BOD 5 / COD increased to 0.20 and 0.52 respectively; chromaticity removal rates can reach 50% and 90% respectively; after 15 days of continuous operation, the effluent water quality of the traditional internal electrolysis reactor fluctuated and showed a trend of deterioration, while the additional electric field strengthened the circulating internal electrolysis device The effluent quality remains stable.
[0028] It can be seen that, compared with the traditional intern...
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