系统全封闭，可自动更换溶剂和排出废液，避免有毒试剂外逸。
Whole system is sealed, preventing escaping of poisonous gas. Automatic reagent change, automatic discharge waste water.
自动更换溶剂和排出废液，避免有毒试剂外逸，保证操作人员及环境安全。
Automatic replacement of solvents and waste discharge to avoid escape of toxic reagents, ensuring the operator and environmental safety.
它是造纸厂排出的废液中的主要成分，是主要的水污染源之一。
But lignin becomes one of the main pollution sources, coming from waste water in the paper-making factory.
本文介绍应用上流式厌氧消化器，将造纸和糠醛车间排出的高浓度有机废液——造纸黑液和糠醛废水经中和处理后，进行废水一级处理。
The primary treatment of the paper mill black liquor and furol after neutralizing treatment by the upflow anaerobic digester is introduced in this paper.
废己烷可以通过沸点的差异得到回收，废己烷总量的95%得到回收利用，总量的5%作为废液排出。
The waste hexane could be recovered by the difference of boiling points. About 95% of waste hexane was recovered and reused.
废己烷可以通过沸点的差异得到回收，废己烷总量的95%得到回收利用，总量的5%作为废液排出。
The waste hexane could be recovered by the difference of boiling points. About 95% of waste hexane was recovered and reused.
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