{"id":251,"date":"2024-06-19T14:30:52","date_gmt":"2024-06-19T14:30:52","guid":{"rendered":"https:\/\/loiteh.ee\/tooted\/"},"modified":"2024-06-22T07:13:31","modified_gmt":"2024-06-22T07:13:31","slug":"products","status":"publish","type":"page","link":"https:\/\/loiteh.ee\/en\/products\/","title":{"rendered":"Products"},"content":{"rendered":"<div  class='flex_column av-av_one_full-048119fdb636ea3d70edc0b975509c6c av_one_full  avia-builder-el-0  avia-builder-el-no-sibling  first flex_column_div  '     ><section  class='av_textblock_section av-lxps3wll-3fe076c39bbd853e7064022b0b9800da '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>Ozone concentration measurements in gas and water<\/strong><\/p>\n<p>Classical method for ozone concentration measurement in gas and water is iodometric. According to this method a certain amount of gas is bubbled through the neutral (pH = 7) 2% KI solution. After that the pH is adjusted to 2 by addition of H<sub>2<\/sub>SO<sub>4<\/sub>. Eliberated iodine is titrated back with Na2S2O3 solution to a starch endpoint. Contemporary ozone analyzers for gas are operating on the principle of UV-light absorption at the wavelength of 254 nm. Dissolved ozone can also be measured according to the same principle at the wavelengths of 253.7 or 258-260 nm.<\/p>\n<p>To determine the concentration of dissolved ozone besides 0.2% solution of KI also the indigo trisulfonate solution can be used (Hoigne &amp; Bader, 1979-1982). The disappearance of its blue color can be monitored spectrophotometrically at 600 nm.<\/p>\n<p><strong>Air preparation for ozone synthesis<\/strong><\/p>\n<p>Air as a feed gas for ozone synthesis must be properly filtered and dried (to the dew point of ~ (-55\u00b0C) to avoid the NOX and corrosive HNO<sub>3<\/sub>\u00a0formation in the ozone generator. Air is usually dried in three stages: with cold water, with refrigerator and with alumogel according to the scheme:<\/p>\n<p>air filter &#8211; compressor \u2013 water cooler &#8211; separator &#8211; refrigerator \u2013 separator \u2013 receiver &#8211; adsorbers with Al<sub>2<\/sub>O<sub>3<\/sub>\u00a0&#8211; filter &#8211; ozone generator<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-299 aligncenter\" src=\"https:\/\/loiteh.ee\/wp-content\/uploads\/2024\/06\/loite.jpeg\" alt=\"\" width=\"251\" height=\"222\" \/><\/p>\n<p style=\"text-align: center;\">PCI- WEDECO<\/p>\n<\/div><\/section><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-251","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/pages\/251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/comments?post=251"}],"version-history":[{"count":5,"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/pages\/251\/revisions"}],"predecessor-version":[{"id":305,"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/pages\/251\/revisions\/305"}],"wp:attachment":[{"href":"https:\/\/loiteh.ee\/en\/wp-json\/wp\/v2\/media?parent=251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}