实验室废定影液和显影液的综合利用  

Comprehensive Utilization of Lab's Waste Fixer and Developer

作　　者：田晓霞[1] 李晔[1] 张茜[2] 宋涵[2] 迟键[2] 

机构地区：[1]空军工程大学理学院,西安710051 [2]空军工程大学理学院学员一旅,西安710051

出　　处：《信息记录材料》2008年第4期30-32,共3页Information Recording Materials

摘　　要：采用还原性混合液回收废定影液中的银,通过高温灼烧、硝酸溶解、除杂等一系列步骤制备试剂级硝酸银;同时,进行了废显影液作为花卉营养液利用的研究。结果表明,银的回收率达92.7%,制备的硝酸银纯度为99.86%以上,达到分析纯级别;未污染的废显影液经过简单处理后可做花卉营养液;处理后的废水都达到国家规定的排放标准,实现了废物利用的目的。The silver is recycled, by adding deoxidized mix liquid from waste fixer, then silver nitrate is made with a series of refining process such as baking, solving and impurity emoving. The results show the recycle ratio of silver is higher than 92.7 %, and the purity of silver nitrate is higher than 99.86%. Un-contamined waste developer can be used as nourishment liquid by a simple process. The treated wastewater is complied to the national wastewater discharge standard.

关 键 词：还原性混合液 显影液 定影液 硝酸银 营养液 

分 类 号：TQ57[化学工程—精细化工]