Case Study Overview

As part of an ongoing project to upgrade a water treatment site in south England. In order to treat the high pH water caused by the washout of concrete delivery trucks, Tilbury Douglas approached RVT for a safe and sustainable solution.

Challenge

Wash water resulting from concrete washouts is alkaline, containing high levels of chromium, which can contaminate groundwater, migrate to storm drains and increase the pH of area waters. Solids that are improperly disposed of can cause flooding.

To avoid polluting the local water systems, Tilbury Douglas required a suitable washout solution to minimise the environmental impact of both solids and wash water caused by the concrete works.

Solution

RVT provided an EnviroHub Concrete Washout Kit comprising of the EnviroHub CW01 Concrete Washout Unit and the EnviroHub TT01 Concrete Water Treatment Unit. This combination used geotextile filter bags to separate the aggregate and silt which could then be used as backfill or disposed of safely. The remaining wash water was then pumped into the adjacent treatment tank for pH correction.

This kit guaranteed the upgrade project for the water treatment site continued safely, whilst minimising the environmental impact of necessary concrete works.

Client

Tilbury Douglas

Location

South England

Products Used