以氯气和氢氧化钠为原料制备次氯酸钠溶液，控制其中游离碱含量在10.8%左右，有效氯在8.0%左右。

Sodium hypochlorite solution has been prepared by chlorine and sodium hydroxide, the content of free alkali should be controlled at about 10.8%, and the effective chlorine at about 8.0%.

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传统的再生方法用酸、碱、盐处理，新方法用次氯酸钠、碱处理。

Traditional regeneration method is to process it with acid, alkali, salt. The New method is to process it with sodium hypochlorite alkali treatment.

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