{"id":3431,"date":"2020-12-02T07:57:49","date_gmt":"2020-12-02T07:57:49","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=3431"},"modified":"2026-04-28T10:41:48","modified_gmt":"2026-04-28T10:41:48","slug":"what-reagents-are-used-for-seawater-desalination","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/it\/what-reagents-are-used-for-seawater-desalination\/","title":{"rendered":"Perch\u00e9 utilizzare agenti speciali per la desalinizzazione? Quali sono i reagenti utilizzati per la desalinizzazione dell'acqua di mare?"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Lo sviluppo della desalinizzazione dell'acqua di mare \u00e8 iniziato negli anni Sessanta. Dopo decenni di sviluppo, la tecnologia di desalinizzazione dell'acqua di mare \u00e8 relativamente matura. Tra queste, i metodi di distillazione e di membrana sono diventati tecnologie mainstream. Attualmente, il metodo della distillazione domina ancora l'intero mercato della desalinizzazione a livello internazionale, ma la sua velocit\u00e0 di sviluppo \u00e8 in ritardo rispetto al metodo dell'osmosi inversa. Il metodo di distillazione si riferisce al metodo di desalinizzazione dell'acqua di mare che utilizza l'energia termica, tra cui l'evaporazione flash multistadio (MSF), l'evaporazione multieffetto (MED), la distillazione del vapore sotto pressione (VC), ecc. Il metodo a membrana sfrutta principalmente la permeabilit\u00e0 selettiva della membrana per separare l'acqua salata e raggiungere lo scopo della desalinizzazione dell'acqua di mare, includendo principalmente l'osmosi inversa (RO) e l'elettrodialisi (ED). Il funzionamento industriale della desalinizzazione \u00e8 generalmente pi\u00f9 elevato rispetto al costo dello sviluppo e dell'utilizzo delle risorse idriche convenzionali. Il costo della desalinizzazione dell'acqua di mare comprende i costi energetici, i costi dei reagenti, i costi delle attrezzature, le spese di gestione, ecc. In futuro, con il progressivo aumento della quota di desalinizzazione dell'acqua di mare nella produzione umana e nell'acqua domestica, la domanda di agenti per il trattamento delle acque nel campo della desalinizzazione dell'acqua di mare continuer\u00e0 ad aumentare.<\/h4>\n\n<!-- lc-qa-start -->\n<p><strong>Quick answer:<\/strong> A practical additive decision starts with the exact defect: foam, poor wetting, craters, haze, or instability. The best product is usually the one that solves that defect with the safest compatibility window.<\/p>\n<!-- lc-qa-end -->\n\n\n\n\n\n\n<h4 class=\"wp-block-heading\">Per il metodo a membrana, durante l'operazione di desalinizzazione dell'acqua di mare, a causa delle variazioni di temperatura, pH, concentrazione di ioni, ecc. dell'acqua di mare, gli ioni di calcio e magnesio possono generare precipitati di carbonato, sale acido e idrossido, che bloccano i pori della membrana e ne riducono la resistenza. Pertanto, \u00e8 necessario aggiungere all'acqua inibitori di calcare, detergenti, flocculanti, anticalcare e disperdenti per ridurre l'impatto del deposito di calcare sulla membrana a osmosi inversa. Nel caso del metodo di distillazione, \u00e8 facile che si formino incrostazioni e che si riduca l'efficienza dell'evaporazione. Il pretrattamento dell'acqua di mare pu\u00f2 essere utilizzato per ridurre l'impatto. L'aggiunta di sale poliacido, acido organico, acido policarbossilico fosfonico, ecc. all'acqua grezza per addolcire la qualit\u00e0 dell'acqua, e agli ioni di calcio e magnesio e altri ioni metallici chelati per renderne difficile la precipitazione e prevenire la formazione di incrostazioni.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"has-inline-color has-pale-cyan-blue-color\"><a rel=\"noreferrer noopener\" href=\"https:\/\/longchangchemical.com\/it\/product\/chlorine-dioxide-tablets-cas-10049-04-4\/\" target=\"_blank\">Compresse di biossido di cloro<\/a><\/span> Disinfezione dell'acqua potabile e di rubinetto in varie occasioni. Disinfezione, sterilizzazione, deodorazione e trattamento antimuffa di strumenti medici, sanitari e clinici. Sterilizzazione e deodorazione nel riutilizzo dell'acqua di recupero.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">La desalinizzazione dell'acqua di mare a osmosi inversa utilizza l'alta pressione per separare l'acqua dolce attraverso una membrana a osmosi inversa; la parte restante former\u00e0 acqua concentrata con un elevato contenuto di sale, che inevitabilmente causer\u00e0 incrostazioni e schiume, compromettendo il normale funzionamento dell'apparecchiatura. Funzionamento e durata. Per questo motivo \u00e8 necessario aggiungere all'acqua i corrispondenti prodotti chimici per il trattamento dell'acqua per prevenire le incrostazioni ed eliminare i batteri, in modo da garantire la qualit\u00e0 dell'acqua e prolungare la vita utile dell'apparecchiatura.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Esistono regolamenti chiari e specifiche operative rigorose per i metodi di dosaggio degli agenti speciali per la desalinizzazione dell'acqua di mare. I normali agenti per il trattamento dell'acqua non sono in grado di soddisfare il normale funzionamento delle apparecchiature di desalinizzazione dell'acqua di mare e gli agenti speciali per le apparecchiature di desalinizzazione dell'acqua di mare non vengono utilizzati in conformit\u00e0 con il rapporto prescritto. Dopo che l'apparecchiatura \u00e8 stata in funzione per un certo periodo di tempo, si verificheranno conseguenze come una qualit\u00e0 dell'acqua inferiore agli standard.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Contattateci ora!<\/strong><\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Longchang chemical \u00e8 specializzata nella vendita di antincrostanti, detergenti, flocculanti, antincrostanti e disperdenti. Di solito vi contatteremo entro 24 ore. Potete anche inviarmi un'e-mail\u00a0<strong>info@longchangchemical.com<\/strong>\u00a0durante l'orario di lavoro (dalle 8:30 alle 18:00 UTC+8 lun.-sab.) o utilizzare la live chat del sito web per ottenere una risposta immediata.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Questo articolo \u00e8 stato scritto dal Dipartimento di Ricerca e Sviluppo di Longchang Chemical. Se si desidera copiare e ristampare, si prega di indicare la fonte<\/h4>\n\n\n<!-- lc-commercial-start -->\n<h2>A practical selection checklist for wetting, leveling, and defoaming additives<\/h2>\n<p>Additive selection is usually most effective when the team defines the defect first and then screens compatibility, dosage range, and process stage. That is often much more reliable than choosing only by chemistry family or by a single dramatic lab result.<\/p>\n<ul>\n<li><strong>Start from the defect, not the additive name:<\/strong> wetting loss, crater, microfoam, and instability often need different solutions even inside the same formula.<\/li>\n<li><strong>Check compatibility at the intended dosage:<\/strong> the strongest additive can still be the wrong commercial choice if it narrows the process window too much.<\/li>\n<li><strong>Review the stage of use:<\/strong> some products are most useful during grind, while others matter more during let-down, filling, or final application.<\/li>\n<li><strong>Balance cure or film quality with defect control:<\/strong> the right additive fixes the problem without sacrificing adhesion, gloss, or appearance.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> A balanced defoamer reference for waterborne coatings and many general foam-control screens.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiaf-3062\/\">CHLUMIAF 3062<\/a>:<\/strong> Useful when printing-ink and UV-ink compatibility matter in the defoaming screen.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> A stronger process-defoaming option when persistent foam survives harsher conditions.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> A strong wetting-agent reference for inks, coatings, and difficult substrate wetting.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why does an additive that looks powerful in a beaker sometimes fail in production?<\/strong><br \/>Because shear, temperature, substrate, and the full formula can all change the way the additive performs under real process conditions.<\/p>\n<p><strong>Should the most aggressive additive always be preferred?<\/strong><br \/>Not usually. The best additive is the one that solves the real defect while preserving the broadest safe operating window.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>The development of seawater desalination began in the 1960s. After decades of development, seawater desalination technology has been relatively mature. Among them, distillation and membrane methods have become mainstream technologies.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3431","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why use special agents for desalination? 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