■This site introduces knowledge and technology related to ensuring water safety and environmental conservation.
■We aim to be a reference site for students and young staff involved in “water purification”.
■We will explain basic knowledge, experimental methods and practical examples, and strive to provide contents that will serve as a reference for technological development and problem solving.
■ The site was launched in May 2017, but there are still many flaws in the content posted. Please understand.
■ Pages with “*” added to the menu title are “planned and not yet published” .
■Menus and their contents are updated frequently. Please note the renewal date.
■ In cooperation with “Petzl Classique 22L“, we will strive to enhance the contents and provide interesting topics.
■ If there are basic knowledge, research, development and maintenance issues, we will provide consultation as much as possible. Please feel free to contact us, regardless of group or individual .
■Sentences, diagrams, illustrations, etc. on this site can be freely reprinted (without consent). However, it excludes those provided and quoted.
■This site also makes use of articles, documents, and photos of others. We would like to express our sincere gratitude to the people, organizations, and companies that provided us.
Many overseas visit this site. The pages of this site were written in Japanese originally. Therefore, Google Translate software was installed for them, but this service had been stopped for some time. An English version has been written in some pages. But, it will be made one by one. Please wait for a while if the English page is not posted.
Now, the software is functioning again. Click the link below, and translate the text to your language and browse the site.
This site frequently updates the system OS, publishes new pages, and updates existing pages. In these cases, the administrator may not be aware even if problems occur such as non-display of diagrams and unknown link destinations. In such cases, we would appreciate those if you could contact us by e-mail at the bottom of the page.
This site is operated for the purpose of education and research or for the advice to those who are in trouble at work, but is not intended for profit or external financial support.
Questions and consultations from individuals or corporations by e-mail will be answered free of charge and as soon as possible.
However, we do not reply to commercial e-mails related to advertisement and sales. Note: Our website does not have any money account because of no financial transactions.