Share

A new aspect of solid-liquid separation of sludges by freeze-thaw process.

[In Japanese. / En japonais.]

Author(s) : IMAIZUMI H.

Type of article: Article

Summary

Volume reduction and recycling of waste sludges are very important, and the recycling ratio tends to be very low (only 4%) in 1993. A freezing-thawing process is the most effective for sludges in which solid-liquid separation is difficult and/or water removal is poor, without sludge conditioning such as coagulation chemicals. On the other hand, this process needed larger energy consumption than other solid-liquid processes. This paper shows that combining the ammonia-refrigeration unit, the freezing-thawing process will achieve both good sludge-water removal and high energy-sufficiency.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2000-2220
  • Languages: Japanese
  • Source: Refrigeration - vol. 73 - n. 850
  • Publication date: 1998/08
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (3)
See the source

Indexing