本文選題：砷 + 預(yù)氧化�。� 參考：《濕法冶金》2017年06期

【摘要】：研究了以CaCl2為沉淀劑從模擬含砷廢水中沉淀砷酸鈉,考察了溶液pH、溫度、n(Ca)/n(As)、反應(yīng)時間對CaCl2除砷的影響。結(jié)果表明:在溶液pH=10、n(Ca)/n(As)=3、反應(yīng)時間3h、溫度25℃條件下,砷去除率可達91.91%;不同條件下,沉淀物種類不同。
[Abstract]:The precipitation of sodium arsenate from arsenic-containing wastewater with CaCl2 as precipitator was studied. The effects of pH, temperature and reaction time on arsenic removal by CaCl2 were investigated. The results show that the removal rate of arsenic can reach 91.91 under the conditions of pH 10 ~ (10) ~ (+) ~ (10) ~ (+) ~ (-) ~ (-) ~ (1), reaction time 3 h and temperature 25 鈩，

本文編號：1789412