| 第 36 卷第 3 期 |  | Vol. 36 No. 3 | | 2006 年 6 月 | Jun 2006 |
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所屬欄目：安全與環(huán)保
聚磷硫酸鐵絮凝劑的制備及其應用 |
| 衛艷新; 侯曼玲(安徽教育學(xué)院化學(xué)系; 中南大學(xué)化學(xué)化工學(xué)院; 安徽合肥; 湖南長(cháng)沙) |
| 摘 要：利用鈦白副產(chǎn)物FeSO4.7H2O、Na2HPO4研制出一種新型復合絮凝劑聚磷硫酸鐵(PPFS),研究了該絮凝劑對高嶺土模擬水樣的絮凝性能及pH值對絮凝效果的影響,并與聚合硫酸鐵(PFS)及聚合氯化鋁(PAC)比較。結果表明:PPFS的絮凝效果和絮體沉降性能均比PFS、PAC好,且在pH為6￣10時(shí)絮凝效果最佳。此外,將PPFS用于處理城市生活污水,PPFS除濁的優(yōu)化用量為4.8 mg/L,而PFS﹑PAC優(yōu)化用量為6.4 mg/L;CODCr的去除率可分別高達91.4%﹑88.4%﹑86.5%;在pH值為7￣9的條件下,PPFS對城市生活污水的濁度和CODCr的去除具有良好效果。 |
| 關(guān)鍵詞：聚磷硫酸鐵; 絮凝性能; 城市生活污水 |
| 中圖分類(lèi)號：X703.5 文獻標識碼：A 文章編號：1009-9212(2006)03-0031-03 |
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| Preparation and Application for Phosphoric Polyferric Sulfate Flocculant |
| WEI Yan-xin1; HOU Man-ling2（1.Department of Chemistry; Anhui Institute of Education; Hefei 230061; China; 2.College of Chemistry and Chemical Engineering; Central South University; Changsha 410083; China） |
| Abstract：A new type of complex flocculant-PPFS is prepared using FeSO4·7H2O and Na2HPO4.The flocculent properties of PPFS on experimental water sample of kaolin and pH value were studied and compared with PFS and PAC.The results showed that PPFS had better flocculating efficiency than PFS and PAC,the performance of floccule was the optimal at pH of 6~10.Furthermore,when PPFS could be used to treat municipal wastewater,the optimal dosage of PPFS was 4.8 mg/L,and PFS and PAC were 6.4 mg/L,the removal rates of CODCr we... |
| Key words：phosphoric polyferric sulfate; flocculent property; municipal wastewater |
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基金項目：安徽省教育廳青年教師資助項目(2005jq1152)
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收稿日期：2005-11-14
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