Abstract

NaClO is chosen as the best oxygen among Ca (ClO)2 and ClO2.The best experimental factors were achieved through the single factor experiment and orthogonal experiment, according to these factors, the actual wastewater project was verified. The results showed that the removal rate of ammonia-nitrogen was above 90% when the matter amounts rate was 2:7, pH=9 and the react time was 60min. Considering the operation cost, the best reaction parameters were that the matter amounts rate was 2:3, pH=7 and the react time was 30min in the actual wastewater project.

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