本文選題：酸性礦山廢水 + 重金屬離子　； 參考：《非金屬礦》2017年05期

【摘要】：針對礦山廢水酸度高、重金屬離子處理成本過高的問題,采用膨潤土、鋼渣復(fù)合顆粒吸附重金屬離子,從去除率、質(zhì)量散失率、堿度釋放量對復(fù)合顆粒制備工藝進(jìn)行探討,并研究其吸附性能影響因素,用此顆粒處理模擬酸性礦山廢水(AMD)。結(jié)果表明:膨潤土、鋼渣配比5∶5,Na_2CO_3用量5%,焙燒粒徑2 mm,500℃下焙燒60 min,吸附劑投放量10.5 g/L,反應(yīng)時(shí)間240 min,振蕩速率100 r/min,反應(yīng)溫度25℃,對Fe~(2+)、Mn~(2+)、Cu~(2+)、Zn~(2+)去除率分別為98.84%、94.93%、99.26%、96.85%,出水pH值為8.42,該復(fù)合顆粒既能去除重金屬離子又能降低AMD酸度,是一種高效、環(huán)保、經(jīng)濟(jì)的AMD處理吸附劑。
[Abstract]:In view of the problems of high acidity and high cost of heavy metal ion treatment in mine wastewater, bentonite and steel slag composite particles were used to adsorb heavy metal ions. The preparation process of composite particles was discussed from removal rate, mass loss rate and alkalinity release. The influence factors of adsorbability were studied, and this particle was used to treat the simulated acid mine wastewater. The results showed that the ratio of bentonite and steel slag was 5: 5 (NaCO3), the amount of bentonite and steel slag was 5: 5, the roasting diameter was 2 mm / 500 鈩，

本文編號：1951418