水管理

纳米膜方法重复利用废物,清洁采出水

本文的作者讨论了使用溶解的聚苯乙烯废物来制备纳米膜,以从废水流中分离碳氢化合物污染物。

纳米膜水/油分离的示意图。
图1-纳米膜水/油分离示意图。
资料来源:SPE 213946。

在石油和天然气领域,采出水是最重要的废水流。在用于水过滤的不同材料(包括陶瓷、聚合物和碳纳米材料)中,聚合物纳米纤维可以被认为是一种独特的解决方案,可以用作膜或吸附剂。在完整的论文中,作者写道,聚合物纳米纤维可以从聚苯乙烯废料中制备。

介绍

聚苯乙烯垃圾的管理和回收造成了严重的环境问题。虽然大部分这种物质最终都会被填埋,但只有一小部分聚苯乙烯被回收或燃烧。

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Water management

Nanomembrane Approach Reuses Waste, Cleans Produced Water

The authors of this paper discuss the use of dissolved polystyrene waste for the preparation of nanomembranes for separation of hydrocarbon pollutants from wastewater streams.

Schematic representation of water/oil separation by nanomembrane.
Fig. 1—Schematic representation of water/oil separation by nanomembrane.
Source: SPE 213946.

In the oil and gas sector, produced water is the most significant waste stream. Among the different materials used for water filtration, including ceramics, polymers, and carbon nanomaterials, polymeric nanofibers can be considered a unique solution that can be used as a membrane or an adsorbent. In the complete paper, the authors write that polymeric nanofibers can be prepared from polystyrene waste.

Introduction

The management of polystyrene trash and recycling creates a significant environmental problem. While most of this substance ends up in landfills, only a small portion of polystyrene is recycled or burned.

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