Hitachi Zosen Corporation

Mitsubishi Denki Kabushiki Kaisha

Shoichi Momose

Kazunori Koba

Shiro Inoue

Hidetaka Sawada

Cozy Ban

Takashi Hirano

Masahiro Kurokawa

Masayuki Isaka

Toshinori Iwai

Hideo Suematsu

A high-temperature ultrapure water production apparatus comprises an evaporator for treating pretreated water obtained by a pretreating system or primary pure water obtained by a primary pure water system to prepare ultrapure water having a high temperature, an ion exchanger for removing trace metal ions from the ultrapure water obtained by the evaporator a product water heat exchanger made of titanium for subjecting to heat exchange the high-temperature ultrapure water obtained by the evaporator and containing the trace metal ions unremoved therefrom and the ultrapure water having ordinary temperature and having its trace metal ions removed by treatment by the ion exchanger a cooling heat exchanger made of SUS for cooling to not higher than 40&deg; C. the ultrapure water containing the unremoved trace metal ions and cooled by the product water heat exchanger for use as feed water for the ion exchanger

High-temperature ultrapure water production apparatus and liquid medicine preparation apparatus equipped with the production apparatus

This invention provides a compact effluent water reclamation apparatus which is minimized in the kinds and amounts of chemicals to be used for the recovery of water to thereby reduce the amount of waste and eliminate equipment which necessitates a large area for installation. The effluent water reclamation apparatus comprises a reverse osmosis device and is adapted to treat acid-alkali effluent water containing organic matter but no fluorine, by concentrating the acid-alkali effluent water containing organic matter by reverse osmosis, evaporating the resulting concentrated water to dryness and collecting the water permeating through a reverse osmosis membrane. The apparatus is characterized in that the apparatus comprises as arranged upstream from the reverse osmosis device a neutralizing device for neutralizing the effluent water to prevent a scale component from separating out from the effluent water in the process of reverse osmosis, and a biological treatment tank for biologically treating the neutralized effluent water.

System for recovering and treating waste water

The present invention provides an apparatus for manufacturing ultra-pure water, characterized in that a decarbonator/degassor and a reverse osmosis equipment for pretreatment of supply water are installed in the upper stream of a multiple effect evaporator. The present invention also provides a method for manufacturing ultra-pure water, characterized in that most of the carbonic groups dissolved in the supply water is degassed by a decarbonating/degassing treatment prior to introducing the water to the multiple effect evaporator, and that most of the scale components such as Ca.sup.++, SO.sub.4.sup.-- and Mg.sup.++ are also eliminated by a reverse osmosis treatment.

Apparatus for manufacturing ultra-pure water

A degreasing-cleaning method which employs as a liquid cleaning agent pure water having a resistivity of at least 10 megohm-cm and a temperature of at least 50.degree. C. The pure water is sprayed onto the article to be cleaned at a pressure of at least 8 kg/cm.sup.2.

Degreasing-cleaning method

Growing community of inventors

Osaka, Japan

Shoichi Momose