Tuffa tank helps Warrens Group cut emissions
Food waste recycling specialist Warrens Group has selected an AdBlue storage tank from Tuffa for installation at its vehicle depot.
Warrens Group is a biogas producer, processing food waste that would otherwise be incinerated or taken to landfill and converting it into energy and fertilisers. Each year the company collects 115,000 tonnes of organic waste and, via a process of anaerobic digestion, converts it into 100,000 tonnes of organic fertiliser and 100 million kWh of clean, green, renewable energy.
The company’s fleet of 15 trucks travels the surrounding area collecting the food waste from commercial customers. Five of the trucks are both carbon neutral and ‘self-sufficient’, having been converted to run directly from biomethane originating from the food waste they collect.
The remaining 10 trucks are yet to be converted, so run from diesel and require AdBlue to reduce harmful emissions.
Warrens Group’s senior engineer sought to upgrade from the company’s IBCs which were “disorganised, a little messy and in the wrong location.”
After a discussion with Tuffa’s sales team, he selected the company’s 2,500L AdBlue dispensing tank with a 230V pump, automatic shut off nozzle with integrated digital flowmeter and a manual float level gauge fitted within the secure tank lid.
With the IBCs removed, the AdBlue tank was installed on the site with the existing Tuffa fuel tanks: a 15,000L and 3,500L diesel dispensing tank for white and red diesel which the firm manufactured a few years ago. The AdBlue tank is now located on the company’s one-way system allowing trucks to efficiently unload the organic waste and refuel on the same route.
“The new tank is the perfect size giving us at least a two-week supply of AdBlue and is the ideal replacement for the old IBC,” said Warrens Group.
“We now have a dedicated, enclosed AdBlue filling station which complies with all the regulations. It’s much easier to work with, much more cost-effective and filling the trucks is quicker too.”
One of the key benefits of storage tanks, says Tuffa, is the additional savings from buying AdBlue in larger volumes.
“Compared with a 1,000L IBC, the Warrens Group’s 2,500L tank could effectively pay for itself within 1-2 years,” said the firm.
“We manufacture some of the highest capacity AdBlue tanks on the market with six capacities ranging from 1,350L to 15,000L meaning there is real potential to lower the cost of AdBlue per litre.”
Warrens Group’s senior engineer explained that the fleet typically uses between 800L to 1,000L of AdBlue each week which, given the company’s weekly deliveries, would give them a continuous stock of at least 1,000L.
The soaring cost of natural gas has caused severe fluctuations in AdBlue prices and led to the temporary closure of several production sites. Warrens Group’s additional storage capacity will give them more flexibility to purchase AdBlue when prices drop while enabling the waste collection trucks to operate effectively for a longer duration in the event of AdBlue shortages.
