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US4795564A Process for improving the sedimentation and filtering properties of waste waters containing clay minerals 失效
改善含有粘土矿物的废水沉淀和过滤性能的方法

Process for improving the sedimentation and filtering properties of
waste waters containing clay minerals
摘要:
The invention relates to a process for improving the sedimentation and filtering properties of waste waters and/or slurries and muds containing clay minerals. The waste waters and/or slurries obtained in the various technologies and containing clay minerals and optionally also other solid components are treated with compounds containing ions having a hydrated ionic diameter of from 0.12 to 0.15 nm and a co-ordination number of 12.
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