Case Study 6

Interceptor Cleaning using FlexLine Combined Suction and Jetting Unit

Equipment

ARD FlexLine

Suction hose

Safety Equipment

PPE

Methodology

Using the appropriate PPE AQS operatives’ cordon off the work area with barrier tape & signage.

AQS laid down 4” suction hose from the ADR FlexLine to the interceptor- one end was connected to the ADR FlexLine and the other end was connected to the interceptor.

The vacuum pump was engaged and the inlet into the ADR tank was opened creating vacuum which drew the liquid from the tank to the ADR.

This process was continued until the tank was at a safe level- this enabled a man to entry the tank so as to clean and wash down the tank.

Before any entry was made gas levels were checked and recorded using a gas monitor, this process was continued throughout the operation. After all gas checks had been completed and the level of liquid in the tank was safe, one AQS operative was lowered into the tank using tripod, winch and harness.

At this stage the water jetting hose of the FlexLine unit was also lowered into the tank in order for the entrant to wash and clean the tank.  All debris and waste was collected through the suction hose which was connected to the FlexLine unit.

This process continued until the tank was cleaned to the client’s satisfaction.

All interceptor wastes are delivered to an authorised hydrocarbon disposal facility  and a certificate of disposal are issued upon completion of disposal process.

Notes:

All AQS operatives are fully trained in confined space entry and the use of breathing apparatus.