The acidic sewage from synthetic hydrochloricacidmanufacture can be used in recirculation and for absorbing water in ordinary hydrochloricacidmanufacture.
对合成盐酸中的酸性废水循环利用，并用此酸性水作为生产普通盐酸的吸收水。
2
The method of steel manufactureacid cleaning discarded hydrochloric acid reactivation use and recover ferrous oxalate.