Your Privacy
We use cookies and similar technologies to personalize content and ads, provide social media features, and analyze our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you've provided to them or that they've collected from your use of their services. You can manage your preferences or withdraw your consent at any time.
Privacy Policy

Manage Consent Preferences

We use cookies and similar technologies to help provide and improve our services. You can choose which categories you consent to below. You can change your preferences at any time.

Strictly Necessary Cookies

Always Active

These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms.

Marketing & Advertising

Advertising Cookies

These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device.

Analytics

Analytics Cookies

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site.

Personalization

Personalization Cookies

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we have added to our pages.
Uncategorized

聚丙烯酰胺(PAM)水处理完全指南:类型、选型与应用

聚丙烯酰胺(PAM)水处理完全指南:类型、选型与应用 聚丙烯酰胺(Polyacrylamide,简称PAM)是水处理行业最重要的有机高分子絮凝剂之一。作为一种Polyacrylamide絮凝剂,PAM凭借其卓越的絮凝性能、广泛的适用性和经济性,在市政污水、工业废水、饮用水预处理等领域得到广泛应用。本文将全面介绍PAM的分类、选型原则、投加方法及注意事项。 什么是聚丙烯酰胺(PAM)? 聚丙烯酰胺是由丙烯酰胺单体聚合而成的线性高分子聚合物,化学式为 (C₃H₅NO)ₙ。其分子量通常在300万至2500万道尔顿之间,是水处理中分子量最高的有机絮凝剂。 PAM的絮凝原理主要基于两种作用机制: 电中和作用:带电荷的PAM分子与水中带相反电荷的悬浮颗粒中和,降低颗粒间的排斥力 吸附架桥作用:长链PAM分子吸附多个悬浮颗粒,形成大絮体,加速沉降 在实际应用中,PAM常与无机混凝剂如 PAC(聚合氯化铝)配合使用,形成”混凝+絮凝”的双药剂体系,达到最佳处理效果。 PAM的分类:阴离子、阳离子、非离子 根据分子链上所带电荷的不同,PAM分为三种类型: 阴离子聚丙烯酰胺(APAM) 阴离子PAM分子链上带有负电荷基团(通常为羧基),适用于处理带正电荷或中性悬浮颗粒的废水。 典型应用:选矿废水、洗砂废水、钢铁废水、电镀废水 分子量范围:800万-2500万 电荷密度:10%-40%(可调) 溶解时间:60-90分钟 阳离子聚丙烯酰胺(CPAM) 阳离子PAM分子链上带有正电荷基团,特别适合处理带负电荷的有机物悬浮液。

WhatsApp Email Get Quote
Scroll to Top