中和渣浆絮凝剂选型优化
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摘要
本文研究了絮凝剂类型、絮凝剂用量和渣浆浓度等对中和渣浆沉降性的影响。结果表明:选用PAM-3、用量在7.5 mg/L,其絮凝沉降效果相当于现场使用的PAM-1 10 mg/L,每年可节省药剂成本约13.87万元;中和渣浆的絮凝沉降过程符合Hill1方程,沉降速率呈先增后减的趋势。
The effects of flocculant type, flocculant dosage and slurry concentration on the settling performance of neutralization slugde were investigated. The results show that when the dosage of PAM-3 is7.5 mg/L, the settling performance is similar to the PAM-1 with 10 mg/L, which was used in plant, and the cost of agent would be reduced about 138.7 thousand RMB annually. The settling process of slurry conforms to the form of Hill1 equation, the settling velocity increases firstly, and then decrease.
The effects of flocculant type, flocculant dosage and slurry concentration on the settling performance of neutralization slugde were investigated. The results show that when the dosage of PAM-3 is7.5 mg/L, the settling performance is similar to the PAM-1 with 10 mg/L, which was used in plant, and the cost of agent would be reduced about 138.7 thousand RMB annually. The settling process of slurry conforms to the form of Hill1 equation, the settling velocity increases firstly, and then decrease.
引文
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[2]王星,瞿圆媛,胡伟伟,等.尾矿浆絮凝沉降影响因素的试验研究[J].金属矿山,2008(5):149-152.
[3]李志华.影响絮凝沉降过程的主要因素[J].矿冶工程,1991,11(1):32-36.
[4]郑幼松.聚丙烯酰胺类絮凝剂的现状与进展[J]山东化工,2009,38(7):24-27.
[5]张华,曾艳,张明青.煤泥水絮凝沉降性能影响因素试验研究[J].能源环境保护,2009,23(4):29-31.
[6]赖庆柯,张永奎.氧化亚铁硫杆菌氧化亚硫酸盐的动力学研究[J].工业微生物,2006,36(3):32-36.
[7]林倩,曾祥饮,刘定富,等.絮凝沉降的温度效应[J].贵州大学学报:自然科学版,2006,23(3):272-274.
[8]焦华喆,王洪江,吴爱祥,等.全尾砂絮凝沉降规律及其机理[J].北京科技大学学报,2010,32(6):702-707.