{"id":153582,"date":"2023-07-29T15:30:34","date_gmt":"2023-07-29T10:00:34","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=153582"},"modified":"2023-07-29T15:30:37","modified_gmt":"2023-07-29T10:00:37","slug":"a-wastewater-is-to-be-disinfected-with-35-mg-l-of-chlorine-to-obtain-99-kill-of-micro-organisms-the-number-of-micro-organisms-remaining-alive-nt-at-time-t","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/a-wastewater-is-to-be-disinfected-with-35-mg-l-of-chlorine-to-obtain-99-kill-of-micro-organisms-the-number-of-micro-organisms-remaining-alive-nt-at-time-t\/","title":{"rendered":"A wastewater is to be disinfected with 35 mg\/L of chlorine to obtain 99% kill of micro- organisms. The number of micro-organisms remaining alive (Nt) at time t"},"content":{"rendered":"\n<p>Q. A wastewater is to be disinfected with 35 <em>mg\/L <\/em>of chlorine to obtain 99% kill of micro- organisms. The number of micro-organisms remaining alive (<em>Nt<\/em>) at time <em>t<\/em>, is modelled by <em>Nt <\/em>=\u00a0<em>No e<\/em>&#8211;<em>kt <\/em>, where <em>No <\/em>is number of micro-organisms at <em>t <\/em>= 0, and <em>k <\/em>is the rate of kill. The wastewater flow rate is 36 <em>m<sup>3<\/sup>\/h<\/em>, and <em>k <\/em>= 0.23 <em>min<sup>\u20121<\/sup><\/em>. If the depth and width of the chlorination tank are 1.5 <em>m <\/em>and 1.0 <em>m<\/em>, respectively, the length of the tank (in <em>m, round off to<\/em> <em>2 decimal places<\/em>) is______________\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n\n\n\n<p>Solution: <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"195\" height=\"512\" src=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/07\/Screenshot-428.png\" alt=\"\" class=\"wp-image-153583\" srcset=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/07\/Screenshot-428.png 195w, https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/07\/Screenshot-428-114x300.png 114w\" sizes=\"(max-width: 195px) 100vw, 195px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Q. A wastewater is to be disinfected with 35 mg\/L of chlorine to obtain 99% kill of micro- organisms. The number of micro-organisms remaining alive (Nt) at time t, is modelled by Nt =\u00a0No e&#8211;kt , where No is number of micro-organisms at t = 0, and k is the rate of kill. The wastewater [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":153584,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5141],"tags":[5140],"class_list":["post-153582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gate","tag-gate-questions"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/153582","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/419"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=153582"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/153582\/revisions"}],"predecessor-version":[{"id":153585,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/153582\/revisions\/153585"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/153584"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=153582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=153582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=153582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}