通过使用无机凝固剂和有机聚合物进行序列凝固来去除物种的机制
Evelina Koltsova1, Roman Smotraiev2, Anastasiia Nehrii1
1Ukrainian State University of Science and Technologies, Department of Inorganic Substances Technology and Ecology, Science Avenue, 8, Dnipro 49005, Ukraine; Norwegian University of Life Sciences, Department of Building and Environmental Technology, P.O. Box 5003, 1430 Ås, Norway.
概括
这项研究将硫酸 (ALS) 与有机聚合物结合起来,以有效地去除并重复使用. 该方法显著减少了ALS的使用,同时提高了废水处理和污泥肥料价值.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 营养素管理 营养素管理
背景情况:
- 随着越来越多的温化,需要严格地从废水中去除.
- 全球酸盐短缺凸显了对高效酸盐再利用的需要.
- 传统的废水处理在完全去除方面面临着挑战.
研究的目的:
- 研究硫酸 (ALS) 和高分子量有机聚合物对去除效率的联合作用.
- 阐明增强颗粒,度,正酸盐 (OP) 和脂 (PL) 清除背后的机制.
- 评估这种综合处理对废水污泥肥料价值的影响.
主要方法:
- 使用硫酸 (ALS) 和各种有机聚合物进行凝血-花.
- 分析颗粒,度,正酸盐 (OP) 和脂 (PL) 的去除率.
- 测量泽塔电位,以了解电荷相互作用.
- 评估污泥的生物可用性和肥料潜力.
主要成果:
- 实现了95-99%的颗粒,度和酸盐的去除.
- 通过协同聚合物添加,ALS剂量减少了40%.
- 确定了聚合物电荷密度作为颗粒/度去除的关键,以及用于OP去除的泽塔电位转移.
- 通过吸附和电荷中和机制证明了增强的PL去除.
- 优化的两阶段剂量改善了PL去除,即使在低剂量的ALS.
结论:
- 结合ALS-聚合物系统为废水中的去除提供了高效和成本效益的解决方案.
- 了解OP和PL去除的机制可以提高治疗优化.
- 改善污泥中的回收增加了其作为肥料的价值,有助于营养循环.
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