Patent · US Expired

Method of concentrating and drying water-containing fluent media

US4349412A · kind A · utility

0Cited by

7References

10Claims

0Family size

Assignee

Osterreichische Studiengesellschaft fur Atomenergie Ges.m.b.H. · AT

Inventors

Karl Knotik · Eisenstadt, AT
Peter Leichter · Wien, AT
Johann Glock · Ebreichsdorf, AT

Key dates

Filing date	Dec 18, 1978
Grant date	Sep 14, 1982
Priority date	—
Expiry date	Dec 18, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S159/20
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method of concentrating and drying water-containing fluent media, especially waste water concentrates, wherein an additive is incorporated in the water-containing fluent media for separating the solids thereof without the formation of scale and the liquid is evaporated. The additive comprises precipitates containing hydroxides, phosphates or arsenates of magnesium, calcium, zinc, aluminum or iron.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.