Pollution Prevention with Bentonite

Introduction

Bentonite, a versatile type of clay, is extensively used in construction for its unique properties. It swells and gels when mixed with water, making it invaluable as a lubricant in drilling or as a slurry for supporting excavations. However, its improper handling can lead to significant environmental pollution and legal repercussions. This toolbox talk outlines the essential measures for the safe use and management of bentonite on construction sites to prevent pollution and ensure compliance with environmental regulations.

Understanding Bentonite

Bentonite is a clay that behaves differently when agitated or at rest, acting like a liquid when stirred and solidifying when stationary. It is delivered to construction sites as a powder or granules, which are then mixed with water to create a slurry. This slurry is used in various construction processes, such as drilling and excavation support.