Weighing system improves turnaround at North London waste transfer system

Advanced technology in both fixed weighbridges and the increasingly popular on board weighing systems is widening the options available to waste managers as this month's special feature reports

A weighbridge installed by industrial weighing specialist Precia-Molen at Onyx's new North London site has increased automation and improved vehicle turnaround.

Precia-Molen was able to provide a complete solution to increase flexibility of operations and maximise traffic flows on site.
John Gosling, Landfill Operations Manager at Onyx, said: "We were essentially looking for a loading system that would cope with increasing vehicle movements and minimise traffic on site. We therefore wanted a cost-effective, automated system which outward-bound drivers could operate themselves. Precia-Molen's package was the most advanced automated system on the market."

The waste transfer site at Wembley operates 24 hours a day serving all areas within a 15-mile radius, including Wembley, Brent and Westminster. It transfers some 65,000 tonnes of domestic and trade waste per year and has approximately 120 incoming and outgoing vehicles which unload and transfer waste each day.

Links to accounting
The two Precia-Molen in-ground VC200CS weighbridges have been installed to control the weighing of the site's incoming vehicles. These are linked to Onyx's existing P&L accounts software which enables the company to print transfer notes and produce appropriate weighing documentation for legislative requirements.

Onyx not only needed a weighbridge system for incoming vehicles, it also required a cost-effective loading system for the vehicles which transfer waste to its landfill sites.

Precia-Molen's automated, driver-operated weighing system was selected, comprising a surface-mounted VS300CS weighbridge controlled by two TCI (Traffic Control Integrator) driver consoles.

The loading process is managed using badge card identification and a two-door entry and exit system. The driver presents his badge at the vehicle control box to determine the maximum weight capacity of the vehicle. Once the facility becomes vacant, the entry door opens and the vehicle is positioned on the weighbridge for the driver to start the loading operation.

A large display panel helps the loading shovel operator to monitor the weight during the loading process and indicates when the maximum load is reached. Once the loading process is stopped, a weight ticket is printed and the exit doors open for the driver to leave the site, Les White, UK Sales Manager at Precia-Molen, said: "Our driver-operated weighbridge is ideal for the waste management industry as it ensures rapid turnaround."

Weighing in at recycling
In another application Chiltern District Council has commissioned a driver-operated weighbridge system designed and installed by Precia-Molen at its new paper sorting facility at its depot in Amersham, Buckinghamshire.

The recycling depot at London Road East provides a dedicated facility to meet the increasing demand for the recycling of domestic waste such as paper, glass, cans and plastics. Collection and sorting operations are carried out by the council's refuse collection and cleansing services contractor, Onyx UK Ltd.

Recyclable mixed paper and glass bottles are collected by Onyx vehicles from all households in the district and from various local collection centres. These are then delivered to the recycling depot for sorting and delivery to processors.

Chiltern DC decided that a weighbridge system was essential for the operation of the increased and improved facilities at the depot in order to perform the key function of weighing and recording the exact amount and type of waste delivered and collected by vehicles using the site.

In addition, it enables the council to maintain accurate control of stock levels within the storage bays as well as providing the vital documentary evidence that is required for the council to claim recycling credits for the government authority.

The complete Precia-Molen driver-operated turnkey weighing package comprises a surface-mounted VS 300CS weighbridge controlled by a TCI driver console linked to an M7DSD terminal and weight ticket in the site operations office.



Waste & resource management

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