The equipment, which can be used to sift through sand and remove microplastics, is being distributed by community interest company Nurdle.
It will be used by environmental, community, and beach clean groups as they carry out a microplastic cleaning tour of the South West.
The first Viridor-Nurdle beach clean took place this month in Croyde, North Devon, where Nurdle has its base.
Further collaborative beach cleans are planned at Perranporth (7 April), Bournemouth (18 April), Weston-super-Mare (22 May), and Swansea Bay (23 May).
Dan Cooke, head of sustainability at Viridor, said: “Sponsoring the Nurdle trommels helps us accomplish our goals in terms of practical action to capture and recycle more plastics.
“But we wanted to take that one step further and so we will be taking the beach plastic which is collected to give it a recycling solution.
“The plastic will be used to create fence posts and similar products, which themselves are designed to be recycled when they reach end-of-life.
“We’ll also be working with universities and research partners to explore alternative recycling solutions for these materials.”
So far, Nurdle has collected more than 25 million pieces of microplastic, with 2.1 tonnes of sand sieved in a single beach clean and 5,350,000 pieces of plastic removed by one trommel in one clean.
Viridor’s sponsorship of the trommel project has also provided Nurdle with the necessary funds to complete the prototype of The Basking Shark, a bigger microplastic collector it has been developing.
The Basking Shark has the capacity to collect around 16 million pieces of microplastic in one load.