Method for degrading organic wastewater through electrolytic stimulation of mineralized refuse supported microorganisms
A technology of microbial electrolysis and mineralization of garbage, which is applied in the field of environmental pollution control, can solve the problem of a single current range of bacteria, and achieve the effect of enhancing the treatment effect, strong treatment capacity, and increasing the electrolysis current
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Embodiment 1
[0018] Add Dye Orange II wastewater with a concentration of 35mg / L into the electrolytic cell, and then add mineralized waste that has been landfilled for 15 years after crushing through a 100-mesh sieve. The solid-liquid mass ratio of the mineralized waste and waste water is 1:500. The electrode materials of the two electrodes are all graphite electrodes. When the current of the electrolytic cell is connected, the current between the two electrodes is 40mA. After 2 hours, the organic matter in the wastewater is oxidized and degraded, precipitated and separated, and the concentration of pollutants in the wastewater is analyzed, and the removal rate reaches 82.2%.
[0019] For the same wastewater, under the same conditions, but no mineralized waste was added, the pollutant removal rate was 30.1% in the same treatment time.
[0020] For the same wastewater, only mineralized waste is added without electricity, and the pollutant removal rate is only 5.7% in the same treatment time....
Embodiment 2
[0022] Add methylene blue wastewater with a concentration of 35mg / L into the electrolytic cell, and then add mineralized waste that has been landfilled for 8 years after crushing through a 50-mesh sieve. The solid-liquid mass ratio of the mineralized waste and waste water is 1:1000. The materials are all graphite electrodes, and the current of the electrolytic cell is connected, and the current between the two electrodes is 5mA. After 5 hours, the organic matter in the wastewater is oxidized and degraded, precipitated and separated, and the concentration of pollutants in the wastewater is analyzed, and the removal rate reaches 82.2%. After precipitation and separation, the solid was left, and then the same waste water was added, and the reaction was continued under the same conditions. After 5 hours, the removal rate was 84.5%.
[0023] For the same wastewater, under the same conditions, but no mineralized waste was added, the pollutant removal rate was 33.2% in the same treatm...
Embodiment 3
[0026] Continuously feed phenol waste water with a concentration of 10mg / L into the electrolytic cell with inlet and outlet, and then add the mineralized waste that has been landfilled for 8 years crushed through a 50-mesh sieve, the solid-liquid solid-liquid of the mineralized waste and the wastewater in the electrolytic cell The mass ratio is 1:500, the electrode materials of the two electrodes of the electrolytic cell are graphite electrodes, the current of the electrolytic cell is connected, the current between the two electrodes is 30mA, the residence time of the wastewater is 3h, and the solid and liquid are separated through the overflow outlet, and the pollutants in the water are analyzed Concentration, after a long time of operation, the removal rate is between 83.7% and 89.5%.
[0027] For the same wastewater, under the same conditions, but no mineralized waste was added, the pollutant removal rate was between 21.7 and 37.4% in the same treatment time.
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