聚丙烯酰胺是(shi)一種(zhong)線狀的(de)有機高(gao)分子聚合物，同(tong)時也是(shi)一種(zhong)高(gao)分子水(shui)(shui)(shui)處(chu)理絮凝劑產(chan)品(pin)，英文縮寫(xie)為PAC，專門可以(yi)吸(xi)附水(shui)(shui)(shui)中的(de)懸浮顆(ke)粒，在顆(ke)粒之(zhi)間(jian)起鏈接(jie)架橋作用(yong)，使細(xi)顆(ke)粒形成比較大(da)的(de)絮團，并且加快了沉淀的(de)速度。這一過程稱之(zhi)為絮凝，因(yin)其(qi)良好的(de)絮凝效果，作為水(shui)(shui)(shui)處(chu)理的(de)絮凝劑并且被廣(guang)泛用(yong)于(yu)污水(shui)(shui)(shui)處(chu)理。

　　PAM在水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)工(gong)(gong)業(ye)中(zhong)(zhong)(zhong)的應用主要(yao)包括原水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)、污(wu)水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)和工(gong)(gong)業(ye)水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)3個(ge)方面。在原水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)中(zhong)(zhong)(zhong)，PAM與活性炭(tan)等配(pei)合使(shi)用，可用于生活水(shui)(shui)(shui)(shui)中(zhong)(zhong)(zhong)懸浮顆粒的凝聚和澄清。在污(wu)水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)中(zhong)(zhong)(zhong)PAM 可用于污(wu)泥(ni)脫水(shui)(shui)(shui)(shui)。在工(gong)(gong)業(ye)水(shui)(shui)(shui)(shui)處(chu)(chu)理(li)中(zhong)(zhong)(zhong)，主要(yao)用作(zuo)配(pei)方藥劑。

　　在原水處理(li)中(zhong)，用(yong)有機絮凝劑(ji)PAM代替無機絮凝劑(ji)，即使不改造沉降池(chi)，凈水能力也可(ke)提(ti)高20%以(yi)上。所以(yi)目前(qian)許(xu)多大中(zhong)城(cheng)市(shi)在供水緊張或水質較(jiao)差(cha)時(shi)，都采用(yong)PAM作為(wei)補充。在污水處理(li)中(zhong)，采用(yong)PAM可(ke)以(yi)增加(jia)水回用(yong)循環(huan)的使用(yong)率。