软水树脂再生废液提高印染污泥脱水性能的研究
发布时间：2019-03-20 16:58
【摘要】：研究了软水树脂再生废液和热处理对印染污泥脱水性能的影响。以污泥比阻(SRF)和毛细吸水时间(CST)作为评价污泥脱水性能的指标,通过测定污泥Zeta电位和FT-IR光谱来阐述污泥脱水机理。实验确定的最佳污泥脱水条件为:加热温度70℃,100 m L污泥添加30 m L软水树脂再生废液(软水树脂再生废液中Ca2+的量约为干污泥质量的11.9%),污泥比阻由2.52×1011m·kg~(-1)降至0.85×1011m·kg~(-1),污泥CST由15.2 s降至8.9 s。随着Ca2+浓度的增加,可使污泥表面电荷明显减少,较高的温度可能会加强这种影响。FT-IR光谱表明,Ca2+能与絮体的O—H官能团、蛋白质等相互作用。实验还对软水树脂再生废液与常用阳离子絮凝剂Fe Cl3和Al2(SO4)3的絮凝效果进行了比较。研究证明软水树脂再生废液可作为絮凝剂使用,是一种经济有效的改善污泥脱水性能的方法,且实现了废物利用。
[Abstract]:The effects of reclaimed waste liquid of soft water resin and heat treatment on the dewatering performance of printing and dyeing sludge were studied. The specific resistance of sludge (SRF) and capillary water absorption time (CST) were used to evaluate sludge dewatering performance. The mechanism of sludge dewatering was explained by measuring the Zeta potential and FT-IR spectrum of sludge. The optimum dewatering conditions were as follows: heating temperature 70 鈩，
本文编号：2444418
[Abstract]:The effects of reclaimed waste liquid of soft water resin and heat treatment on the dewatering performance of printing and dyeing sludge were studied. The specific resistance of sludge (SRF) and capillary water absorption time (CST) were used to evaluate sludge dewatering performance. The mechanism of sludge dewatering was explained by measuring the Zeta potential and FT-IR spectrum of sludge. The optimum dewatering conditions were as follows: heating temperature 70 鈩，
本文编号：2444418
本文链接：https://www.wllwen.com/kejilunwen/huanjinggongchenglunwen/2444418.html
最近更新
教材专著
