Water purification

Groundwater is extracted from the earth when excavation pits and pipe trenches are drained. This groundwater can be contaminated by a wide variety of substances in the soil. Old sites or close proximity to laundries, gas stations and heavy industries can contaminate the soil and groundwater with pollutants such as heavy metals, nitrate, phosphate, potassium, mineral oils, BTEX, CHCs, etc.

Not only the pollutants due to human contribution can pollute groundwater. Groundwater has different compositions depending on local conditions. It can contain all kinds of natural substances, e.g. iron, magnesium, manganese, etc. This means that groundwater must be treated and purified before it can be discharged into surface water or the sewage system, or filtered into the soil.

To pull all of these substances out of the water while complying with applicable laws and regulations, Koop has a wide range of purification equipment. These include deferrization plants, activated carbon filtration plants, stripping towers, ion exchangers, oil separators, sand traps and pH neutralization plants.

In Koop’s in-house developed plants, a lot of attention has been paid to ensuring that the plants run as efficiently as possible.
This means less energy consumption, less waste, less space required and less transportation, with the great advantage of a smaller carbon footprint and lower operating costs.

Groundwater treatment

Groundwater varies in composition from place to place. Groundwater can contain all kinds of natural and non-natural substances, so it must be purified before it can be discharged into surface waters or sewers, or filtered into the ground.

Groundwater monitoring

An important part of the dewatering is the flow measurement and monitoring of the groundwater level and the effects on the surrounding area. Monitoring wells are installed in the excavation pit and at the drawdown contours in the surrounding area to monitor the groundwater level.