{"id":840,"date":"2020-03-26T13:27:15","date_gmt":"2020-03-26T11:27:15","guid":{"rendered":"https:\/\/strongflow.kajahdus.fi\/elektrodeionisaatio"},"modified":"2022-03-23T13:50:41","modified_gmt":"2022-03-23T11:50:41","slug":"electrodeionization","status":"publish","type":"page","link":"https:\/\/strongflow.fi\/en\/electrodeionization","title":{"rendered":"Electrodeionization"},"content":{"rendered":"[vc_row type=&#8221;full_width_background&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; bg_image=&#8221;253&#8243; bg_position=&#8221;center top&#8221; background_image_loading=&#8221;default&#8221; bg_repeat=&#8221;no-repeat&#8221; scene_position=&#8221;center&#8221; top_padding=&#8221;10%&#8221; bottom_padding=&#8221;10%&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; enable_gradient=&#8221;true&#8221; color_overlay=&#8221;#000000&#8243; overlay_strength=&#8221;0.8&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_spacing=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_custom_heading text=&#8221;Electrodeionization&#8221; font_container=&#8221;tag:h1|text_align:left|color:%23ffffff&#8221; use_theme_fonts=&#8221;yes&#8221;][\/vc_column][\/vc_row][vc_row type=&#8221;full_width_content&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;padding-10-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_spacing=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;2\/3&#8243; tablet_width_inherit=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]In electrodeionization (EDI), water is deionised using electric current, ion-exchange membranes and resin. EDI is typically used for the final polishing of water after the reverse osmosis stage when there is a need for very low conductivity of the water (below 0.1 \u03bcS\/cm). Very low conductivity water is required, for example, for steam turbines in electric power plants and in the production of various semiconductor components (e.g. production of solar panels).<\/p>\n<p><strong>Equipment and system principle<\/strong><\/p>\n<p>An electrodeionization system consists of an EDI cell (basically an encased unit containing ion-selective membranes and mixed bed ion-exchange resin), a DC power supply unit and piping with the necessary regulators and sensors to control the flow of water within the EDI cell.<\/p>\n<p>Within the EDI cell, the water is divided into final product water (diluate), concentrate and electrolyte (the residue water streams that include filtrated substances). The concentrate and electrolyte can be collected and re-used elsewhere in the process. With EDI, the yield is typically between 90\u201395%.<\/p>\n<p><strong>Required information for system design<\/strong><\/p>\n<p>To complete a water treatment system design, a raw water analysis is needed together with information about the required water flow\/capacity of the system and the required water quality after treatment or information about the use of the water produced. If the equipment being installed in an existing space, information about the available drainage and room dimensions is also good to know.[\/vc_column_text][vc_gallery type=&#8221;flickity_static_height_style&#8221; images=&#8221;1063,1060,2020&#8243; flickity_spacing=&#8221;default&#8221; flickity_controls=&#8221;pagination&#8221; flickity_overflow=&#8221;hidden&#8221; flickity_wrap_around=&#8221;wrap&#8221; flickity_box_shadow=&#8221;none&#8221; image_loading=&#8221;default&#8221; onclick=&#8221;link_image&#8221; img_size=&#8221;800&#215;600&#8243; flickity_autoplay_dur=&#8221;6000&#8243;][\/vc_column][vc_column column_padding=&#8221;padding-10-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;top-bottom&#8221; column_element_spacing=&#8221;default&#8221; background_color=&#8221;#f7f7f7&#8243; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/3&#8243; tablet_width_inherit=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_row_inner column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; text_align=&#8221;left&#8221; row_position=&#8221;default&#8221; row_position_tablet=&#8221;inherit&#8221; row_position_phone=&#8221;inherit&#8221; overflow=&#8221;visible&#8221; pointer_events=&#8221;all&#8221;][vc_column_inner column_padding=&#8221;padding-10-percent&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;left-right&#8221; column_element_spacing=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_custom_heading text=&#8221;Related Systems&#8221; font_container=&#8221;tag:h4|text_align:left|color:%23000000&#8243; use_theme_fonts=&#8221;yes&#8221;][nectar_btn size=&#8221;large&#8221; button_style=&#8221;see-through&#8221; button_color_2=&#8221;Extra-Color-1&#8243; icon_family=&#8221;default_arrow&#8221; el_class=&#8221;fullbutton&#8221; url=&#8221;\/en\/deionised-di-and-ultra-pure-water-systems&#8221; text=&#8221;Deionised (DI) and Ultra-Pure Water Systems&#8221; margin_top=&#8221;30&#8243; margin_right=&#8221;15&#8243; margin_bottom=&#8221;10&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>[vc_row type=&#8221;full_width_background&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; bg_image=&#8221;253&#8243; bg_position=&#8221;center top&#8221; background_image_loading=&#8221;default&#8221; bg_repeat=&#8221;no-repeat&#8221; scene_position=&#8221;center&#8221; top_padding=&#8221;10%&#8221; bottom_padding=&#8221;10%&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; enable_gradient=&#8221;true&#8221; color_overlay=&#8221;#000000&#8243; overlay_strength=&#8221;0.8&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-840","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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