{"id":4927,"date":"2021-12-20T09:32:53","date_gmt":"2021-12-20T09:32:53","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4927"},"modified":"2026-04-28T10:41:53","modified_gmt":"2026-04-28T10:41:53","slug":"sewage-treatment-chemicals-used-in-sewage","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/sewage-treatment-chemicals-used-in-sewage\/","title":{"rendered":"Produits chimiques pour le traitement des eaux us\u00e9es couramment utilis\u00e9s dans divers syst\u00e8mes de traitement des eaux us\u00e9es"},"content":{"rendered":"<!-- lc-qa-start -->\n<p><strong>R\u00e9ponse rapide :<\/strong> Une d\u00e9cision pratique en mati\u00e8re de traitement des eaux us\u00e9es commence par la d\u00e9finition du mode de d\u00e9faillance, puis v\u00e9rifie le pH, la DCO, l&#039;ammoniac, l&#039;\u00e9tat des boues et l&#039;interaction des proc\u00e9d\u00e9s avant de modifier la chimie ou le fonctionnement.<\/p>\n<!-- lc-qa-end -->\n\n\n<p>Classification et application des agents de coagulation conventionnels<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Sel de fer, sel d'aluminium et leurs compos\u00e9s m\u00e9dicamenteux<\/li><\/ol>\n\n\n\n<p>Sel de fer : sulfate ferrique polym\u00e9rique (PFS), sulfate ferreux<\/p>\n\n\n\n<p>Sel d'aluminium : chlorure de polyaluminium (PAC), sulfate d'aluminium, aluminium alcalin<\/p>\n\n\n\n<p>M\u00e9dicament compos\u00e9 : compos\u00e9 d'aluminium et de fer<\/p>\n\n\n\n<p>Effets de l'application : pr\u00e9traitement pour \u00e9liminer les MES, d\u00e9coloration et d\u00e9graissage ; traitement avanc\u00e9 pour \u00e9liminer la DCO et le phosphore ; r\u00f4les diff\u00e9rents pour diff\u00e9rentes industries.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\"><li>Pour ajuster la valeur PH des m\u00e9dicaments, on utilise de la soude caustique, de la chaux vive, de la chaux hydrat\u00e9e, des compos\u00e9s alcalins et de l'acide sulfurique.<\/li><li>Floculant<\/li><\/ol>\n\n\n\n<p>PAM anionique, cationique, non ionique<\/p>\n\n\n\n<p>Effet de l'application : Choisir en fonction de la charge \u00e9lectrique des flocs dans l'eau, de la teneur en mati\u00e8re organique et de la valeur du PH.<\/p>\n\n\n\n<p>M\u00e9decine professionnelle et application<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>D\u00e9coloration : les agents de coagulation conventionnels (tels que le sulfate ferreux, le sulfate polyferrique, etc.), les d\u00e9colorants organiques, sont souvent utilis\u00e9s dans les eaux us\u00e9es d'impression et de teinture et dans les eaux us\u00e9es du cuir ;<\/li><li>En plus de la DCO : le remover DCO, l'agent de combinaison Fenton, principalement utilis\u00e9 pour le traitement avanc\u00e9 de la fin ; il est largement utilis\u00e9 dans la fabrication du papier, l'impression et la teinture, la galvanoplastie, et les industries de cartes de circuits imprim\u00e9s ;<\/li><li>\u00c9limination du phosphore : Agent d'\u00e9limination du phosphore, autres sels de fer, sels d'aluminium, sels de calcium ; il est largement utilis\u00e9 dans les stations d'\u00e9puration des eaux us\u00e9es urbaines et les usines d'oxydation des m\u00e9taux en surface ;<\/li><li>\u00c9limination de l'azote ammoniacal : l'\u00e9limination de l'azote ammoniacal, principalement la galvanoplastie, et d'autres applications dans l'industrie des circuits imprim\u00e9s ;<\/li><li>En plus des m\u00e9taux lourds complex\u00e9s : agent de d\u00e9complexage, sulfure de sodium, agent de recapture ; plus d'applications dans les usines de galvanoplastie et les circuits imprim\u00e9s ;<\/li><li>\u00c9limination des fluorures : agent d'\u00e9limination des fluorures, sel de calcium, sulfate d'aluminium ; installation de galvanoplastie<\/li><\/ol>\n\n\n\n<p>Introduction \u00e0 d'autres produits<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>Bact\u00e9ries bioactiv\u00e9es<\/li><\/ol>\n\n\n\n<p>Comprenant des souches obligatoires pour l'\u00e9limination de l'ammoniac et de la DCO, il convient \u00e0 l'activation biologique des installations de traitement des eaux us\u00e9es telles que la fabrication du cuir, l'impression et la teinture, les usines de traitement des eaux us\u00e9es urbaines, les usines alimentaires, etc.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\"><li>R\u00e9ducteur d'eau de boue<\/li><\/ol>\n\n\n\n<p>La modification et le conditionnement des boues par l'agent r\u00e9ducteur d'eau am\u00e9liorent la performance de d\u00e9shydratation des boues en lib\u00e9rant davantage d'eau attach\u00e9e et d'eau li\u00e9e. Apr\u00e8s la d\u00e9shydratation, la teneur en eau des boues est r\u00e9duite \u00e0 moins de 60% en vue d'un traitement avanc\u00e9 ult\u00e9rieur. Et l'utilisation des ressources. Il convient \u00e0 la d\u00e9shydratation profonde des boues dans les stations d'\u00e9puration urbaines, les imprimeries et les teintureries, les papeteries, les centres d'\u00e9limination centralis\u00e9e des boues et d'autres entreprises.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\"><li>\u00c9quipement photocatalytique<\/li><\/ol>\n\n\n\n<p>Il convient \u00e0 la d\u00e9coloration, \u00e0 l'\u00e9limination de la DCO et \u00e0 l'\u00e9limination partielle du phosphore des eaux us\u00e9es r\u00e9fractaires \u00e0 forte concentration ; il pr\u00e9sente des co\u00fbts d'investissement et d'exploitation \u00e9lev\u00e9s et convient mieux au traitement des eaux us\u00e9es \u00e0 faible volume.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\"><li>L'\u00e9quipement d'\u00e9lectrofloculation convient aux entreprises de galvanoplastie et de circuits imprim\u00e9s pour \u00e9liminer les m\u00e9taux lourds complexes, tels que le nickel chimique, et convient \u00e9galement pour \u00e9liminer le phosphore partiel ; les co\u00fbts d'investissement et d'exploitation sont \u00e9lev\u00e9s, et il convient mieux au traitement des eaux us\u00e9es avec de petites quantit\u00e9s d'eau.<\/li><\/ol>\n\n\n<!-- lc-commercial-start -->\n<h2>Liste de contr\u00f4le pratique des processus li\u00e9s au traitement des eaux us\u00e9es et des eaux d&#039;\u00e9gout<\/h2>\n<p>La plupart des probl\u00e8mes de traitement des eaux us\u00e9es sont des probl\u00e8mes syst\u00e9miques. Les \u00e9quipes obtiennent g\u00e9n\u00e9ralement de meilleurs r\u00e9sultats lorsqu&#039;elles d\u00e9finissent d&#039;abord l&#039;\u00e9tape du processus et l&#039;objectif de qualit\u00e9 de l&#039;eau, puis examinent conjointement les facteurs biologiques, chimiques et op\u00e9rationnels avant d&#039;apporter des corrections \u00e0 l&#039;\u00e9chelle de la station d&#039;\u00e9puration.<\/p>\n<ul>\n<li><strong>Commencez par l&#039;\u00e9tape du processus\u00a0:<\/strong> Les \u00e9tapes de pr\u00e9traitement, de traitement biologique, de gestion des boues et de polissage peuvent r\u00e9v\u00e9ler des causes profondes tr\u00e8s diff\u00e9rentes.<\/li>\n<li><strong>Analysez ensemble les donn\u00e9es essentielles sur la qualit\u00e9 de l&#039;eau\u00a0:<\/strong> Le pH, la DCO, l&#039;azote, la salinit\u00e9, l&#039;\u00e9tat des boues et l&#039;oxyg\u00e8ne dissous doivent souvent \u00eatre interpr\u00e9t\u00e9s comme un tout.<\/li>\n<li><strong>V\u00e9rifier simultan\u00e9ment la conformit\u00e9 et l&#039;op\u00e9rabilit\u00e9\u00a0:<\/strong> La solution locale la plus rapide peut n\u00e9anmoins s&#039;av\u00e9rer une erreur commerciale si elle d\u00e9stabilise une autre partie de l&#039;usine.<\/li>\n<li><strong>Utilisez une validation pilote ou par \u00e9tapes lorsque cela est possible\u00a0:<\/strong> Les syst\u00e8mes d&#039;assainissement r\u00e9agissent souvent diff\u00e9remment \u00e0 grande \u00e9chelle que dans le cadre d&#039;hypoth\u00e8ses simplifi\u00e9es \u00e9tudi\u00e9es en laboratoire.<\/li>\n<\/ul>\n<h3>R\u00e9f\u00e9rences de produits recommand\u00e9es<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> Un r\u00e9f\u00e9rence anti-mousse \u00e9quilibr\u00e9 pour les rev\u00eatements \u00e0 base d'eau et de nombreux \u00e9crans de contr\u00f4le de mousse g\u00e9n\u00e9raux.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> Une option de d\u00e9sa\u00e9ration de processus plus puissante lorsque la mousse persistante survit \u00e0 des conditions plus difficiles.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> Un agent mouillant de r\u00e9f\u00e9rence puissant pour les encres, les rev\u00eatements et le mouillage des substrats difficiles.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiwe-3071-organic-silicone-surfactant-organosilicone-wetting-agent\/\">CHLUMIWE 3071<\/a>:<\/strong> Utile lorsqu'un support mouillant organosilicon\u00e9 est requis dans un \u00e9cran d'application large.<\/li>\n<\/ul>\n<h3>FAQ pour les acheteurs et les formulateurs<\/h3>\n<p><strong>Pourquoi de nombreux probl\u00e8mes d&#039;eaux us\u00e9es r\u00e9sistent-ils aux solutions simplistes\u00a0?<\/strong><br \/>Car le sympt\u00f4me visible est souvent cr\u00e9\u00e9 par plusieurs variables de processus interagissant plut\u00f4t que par une cause isol\u00e9e.<\/p>\n<p><strong>Les changements op\u00e9rationnels doivent-ils \u00eatre \u00e9valu\u00e9s \u00e0 l&#039;aide d&#039;un seul indicateur de r\u00e9sultat\u00a0?<\/strong><br \/>G\u00e9n\u00e9ralement non. Une d\u00e9cision de traitement stable doit prendre en compte l&#039;\u00e9quilibre du processus, la conformit\u00e9, le comportement des boues et l&#039;effet sur les \u00e9tapes en aval.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>Classification and application of conventional coagulation agents Iron salt, aluminum salt and their compound medicaments Iron salt: polymeric ferric sulfate (PFS), ferrous sulfate Aluminum salt: polyaluminum chloride (PAC), aluminum sulfate,<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-4927","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Sewage treatment chemicals commonly used in various sewage - 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