The Dorset firm won the multi-year deal on a competitive tender and succeeds Leeds-based Wastecare in the management role.
As part of the deal, J&G will collect all general print waste, including litho plates and chemicals, from Trinity Mirror’s print centres on a primarily weekly basis.
Trinity Group purchasing manager Julian Kiely said: "Minimising environmental impact is very important to us" adding that "we have identified all our waste streams and, with J & G’s assistance, have put in place clearly defined action plans to recycle or reuse the maximum amount possible."
J&G customer services manager Richard Spreadbury told printweek.com: "We plan to cut Trinity Mirror's chemical waste levels by around 10% in the first year and aim to work closer with them with a more proactive approach to recycling".
He added the company was "taking a highly responsible attitude towards its waste disposal which was in line with an increasingly environmentally-conscious printing industry".
Spreadbury went on to say that a newspaper printer, which disposes of around nine tonnes of general waste a week could cut its disposal costs by around 35% if the waste was diverted from landfill and recycled.