相关实验视频

Updated: Jun 29, 2025

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Sampling, Sorting, and Characterizing Microplastics in Aquatic Environments with High Suspended Sediment Loads and Large Floating Debris

Published on: July 28, 2018

通过凝固从饮用水中去除微塑料的最新进展:去除机制和影响因素

Yufeng Mao¹, Zuoyuan Hu², Hong Li³

¹Key Laboratory of Hydraulic and Waterway Engineering, Ministry of Education, Chongqing Jiaotong University, Chongqing, 400074, China; Key Laboratory of Eco-Environment of Three Gorges Region, Ministry of Education, Chongqing University, Chongqing, 400044, China.

Environmental pollution (Barking, Essex : 1987)

|April 2, 2024

概括

凝固有效地从饮用水中去除微塑料 (MP),尽管机制因MP大小而异. 形状和凝固剂类型等因素显著影响去除效率,指导未来的水处理策略.

科学领域:

环境科学环境科学
水处理工程水处理工程
分析化学分析化学

背景情况:

微塑料 (MP) 是饮用水中普遍存在的污染物,具有潜在的人类健康风险.
目前对凝血在清除饮用水中的MPs有效性的理解是有限的.
凝固是饮用水处理中的一个关键过程,最近的研究表明它在去除MP中的作用.

研究的目的:

批判性地审查凝血的效率,机制和影响因素,以从饮用水中去除MP.
在实验室环境和饮用水处理厂 (DWTP) 中总结有关MP去除效率的现有数据.
确定影响基于凝血的MP去除的关键因素,并提出未来的研究方向.

主要方法:

来自DWTP和实验室研究的MP删除效率数据的全面总结.
讨论主导的凝血机制 (电荷中和,吸附桥梁,扫描) 和它们相关的研究方法.
使用元分析 (子组分析) 和随机森林模型对影响因素的联合分析.

主要成果:

凝血在从饮用水中去除MP方面发挥着重要作用,观察到的DWTP与实验室之间的差异归因于处理条件和检测限制.
机制因MP大小而有所不同:电荷中和是小型MP的关键,而吸附桥梁和扫描则是较大的MP的主导.
一个随机的森林模型确定了MPs形状,凝固剂类型,凝固剂剂量,MPs度,MPs大小,MPs类型和pH作为关键影响因素,以下降的顺序.

结论:

凝固是减轻饮用水中微塑料污染的一个重要过程.
了解MP特性,凝固剂特性和操作参数之间的相互作用对于优化去除效率至关重要.
需要进一步的研究来解决知识差距,并完善水处理中有效去除微塑料的策略.

关键词:

凝血是凝固的过程.饮用水饮用水饮用水影响因素影响因素.微塑料是一种微塑料.移除机制移除机制

更多相关视频

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Published on: July 27, 2022

Separation and Identification of Conventional Microplastics from Farmland Soils

Separation and Identification of Conventional Microplastics from Farmland Soils

Published on: March 21, 2025

相关概念视频

Coagulation

Coagulation

Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...

Colloidal precipitates

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...

Precipitation and Co-precipitation

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...