New process for micro electric field reinforced low-carbon nitrogen removal
A micro-electric field and new process technology, applied in aerobic and anaerobic process treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. Widespread application and other problems, to achieve the effect of solving low efficiency, avoiding emissions, and small CO2 emissions
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[0022] A complex three-dimensional electrode-biofilm reactor is used to directly treat simulated wastewater with COD of 45mg / L and ammonia nitrogen of 30mg / L. At a temperature of 25-30°C and a pH of 7.2-7.8, six reactors (No. 1, No. 2, No. 3, No. 4, No. 5, and No. 6) were inoculated with the same concentration of sludge.
[0023] Then, they were acclimatized in the 6 ways shown in Table 1 for 20 days. During the acclimatization process, 2 / 3 of the culture medium was replaced every day (calculated by HRT=8h). figure 2 The volume denitrification efficiencies of the six domestication methods are shown respectively after 20 days. The results show that with the increase of the current, the denitrification efficiency also increases. Under the condition that the acclimation finally reaches the same current, the volume denitrification efficiency by gradually increasing the current is higher than that of the acclimation method with constant current.
[0024] Table 1 Methods of sludge dome...
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