ZHANG Minghui, ZHU Yanqun, MA Qiang, et al. Experimental research on harmless treatment for nitrites derived from multi-pollution absorption by ozone[J]. Thermal power generation, 2015, 44(6): 42-46.
ZHANG Minghui, ZHU Yanqun, MA Qiang, et al. Experimental research on harmless treatment for nitrites derived from multi-pollution absorption by ozone[J]. Thermal power generation, 2015, 44(6): 42-46.DOI:
the nitrite transformation experiments during multi-pollutants removal by ozone were carried out.The results indicated that the oxidation efficiency for the original solution containing nitrite anion was only 60%to 65% at the equivalent sodium hypochlorite.The oxidation efficiency increased with the decrease of solution pH value and reached its maximum in weak acidic environment(pH=5~7).At 25 ℃ and with pH value of 5~6
the sodium nitrite was completely transformed into sodium nitrate within 10 minutes at the equivalent ratio of 1.1.Moreover
the remaining sodium hypochlorite could decompose thoroughly within 24 h.