WATER CLEANING APPARATUS

PROBLEM TO BE SOLVED: To provide a water cleaning apparatus for obtaining secured water for domestic use by treating raw water contaminated particularly with inorganic harmful substances such as arsenic, lead, chromium, cadmium, mercury, etc. SOLUTION: The toxicity of the harmful substances in the r...

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Bibliographic Details
Main Author IWAMURA JUNICHI
Format Patent
LanguageEnglish
Published 20.01.2005
Edition7
Subjects
CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:PROBLEM TO BE SOLVED: To provide a water cleaning apparatus for obtaining secured water for domestic use by treating raw water contaminated particularly with inorganic harmful substances such as arsenic, lead, chromium, cadmium, mercury, etc. SOLUTION: The toxicity of the harmful substances in the raw water is reduced by adding an oxidizing agent to the raw water to form hardly water-soluble oxides from the harmful substances. The target compound can be removed from the water as a precipitate in the oxidation process when the compound has a high density. The invention provides not only the cleaned water without the inorganic harmful substances but also the following advantages over the conventional apparatuses: 1, the initial cost is low; 2, the running cost is low; 3, the waste collected becomes a valuable matter containing rare elements; 4, the waste water is reduced; and 5, the apparatus is simple. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030204112