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通过H2O2的热脱水重复使用过量的二次污泥
Ana Udaondo1,2, Vicente Montes3, Olga Gimeno1
1Departamento de Ingeniería Química y Química Física, Instituto Universitario de investigación del agua, cambio climático y sostenibilidad, Universidad de Extremadura, Badajoz, Spain.
Environmental science and pollution research international
|February 28, 2024
概括
来自废水处理的多余活性污泥使用热量和过氧化进行了脱水. 较高的温度显著提高了污泥的脱水性和过性,使其作为生物吸收剂的潜在再利用成为可能.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 废物管理 废物管理
背景情况:
- 市政废水处理产生了大量的活性污泥.
- 高含水量使污泥的运输,处置和管理复杂化.
- 开发高效的污泥脱水方法对于可持续性至关重要.
研究的目的:
- 用联合温度和过氧化处理来研究过量的活性污泥的脱水.
- 优化操作变量,以提高污泥脱水性和过性.
- 探索脱水污泥作为可持续生物吸收剂的潜力.
主要方法:
- 一个盒子Behnken实验设计与15个运行被雇用.
- 研究的关键变量包括温度 (120-180°C),过氧化剂量 (0.01-0.03M) 和治疗时间 (20-60分钟).
- 监测了泥的脱水性,过性以及水含量和细胞外聚合物质等特征.
主要成果:
- 温度被确定为实现具有理想管理特征的脱水污泥最有影响力的参数.
- 优化条件降低了污泥体积,提高了过能力.
- 脱水的污泥,当碳化和激活时,显示出作为生物吸收剂的潜力,可以从水中去除,奥洛素和二.
结论:
- 联合热和过氧化处理有效地去水活性污泥.
- 温度在提高污泥脱水性和过性方面发挥着关键作用.
- 需要进行进一步的研究,以优化从经过处理的污泥中合成生物吸收剂,以提高净水效率.
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