本文综述了制革工业中浸碱废液和铬污染的治理现状。

The current situation of treatment of alkali treating wastewater and Cr pollution in leather-making industry were reviewed.

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从全国氯化钙生产状况来看，工业氯化钙产品主要是采用制碱废液工艺生产。

From calcium chloride produces technology of the state, the industrial calcium chloride production is mainly adopted technology of waste ammonia liquid of ammonia - soda.

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采用加入无机酸、碱中和以及精馏技术，考察了从制药废液中分离乙醇和二异丙胺的工艺条件。

In this paper, the technology conditions of recovering ethanol and diisopropylamine from pharmaceutical waste were studied using mineral acid, alkali neutralization and rectification.

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