化工进展2025，Vol.44Issue(3)：1695-1705,11.DOI:10.16085/j.issn.1000-6613.2024-0358
一种处理高硬度水的双层颗粒式药剂研发与效果分析
Development and effect analysis of a double-layer granular reagent for treating high hardness water
摘要
Abstract
Using Na2CO3,NaOH,modified polyvinyl alcohol(PVA1788),PAC,and Na2SiO3 as raw materials,a water-soluble double-layer granular water treatment agent was developed for treating high hardness water.The modified PVA1788 was prepared through an addition reaction to enhance its water solubility.Microscopic analysis of the modified PVA1788 was conducted using scanning electron microscopy,X-ray photoelectron spectrometry,and Fourier infrared spectrometry.Subsequently,the removal efficiency of the reagent was assessed,and the impacts of storage time,reaction water temperature,pH,and reaction time on the reagent were explored.The outcomes demonstrated that Na2CO3 and NaOH effectively eliminated water hardness,while the modified PVA1788 exhibited improved water solubility,enhancing the reagent's overall solubility.The double-layer granular agent was resilient to environmental variations,exhibiting versatility in usage.Even after storage for 5-30 days post-use,it remained effective,maintaining a stable hardness removal efficiency of 92%—94%.The two-layer granular reagent released its inner and outer layer components sequentially,revolutionizing the conventional step-by-step addition method in water treatment processes and streamlining the treatment procedure.关键词
高硬度水/水处理药剂/聚乙烯醇/水溶性材料/水处理工艺Key words
high hardness water/water treatment agent/polyvinyl alcohol/water-soluble materials/water treatment technology分类
资源环境引用本文复制引用
胡家玮,刘岩,王聪,刘美婧..一种处理高硬度水的双层颗粒式药剂研发与效果分析[J].化工进展,2025,44(3):1695-1705,11.基金项目
甘肃省自然科学基金(20JR5RA476). （20JR5RA476）
