Daniel P. Duffy
Recent Articles
Mechanical Material Management
When planning for a construction and demolition project, a contractor includes his labor force, hand and power tools, heavy equipment, fuel, office trailers, utility hookups, ...
Better Living Through Organics
The handling of organic waste including transportation, storage, and the equipment needed
A Keen Eye and a Steady Hand
Why Use Tippers and Live Floors in the First Place? Upon arrival at the landfill, waste has to be deposited on the current working face. Lacking any specialized off-loading equipment...
Alternate Fuel, Additional Revenue
New technological advances in the production and utilization of compressed natural gas
Action and Reaction
New equipment and operational methods being used by recyclers and transfer stations
Slow and Steady
Recent improvements in tipper and live floor technology
Dirty MRFs and Clean Products
Advancements in MRF sorting technology
Day to Day
Originally intended as a way to minimize a nuisance or manage a potential hazard at a landfill, landfill gas (LFG) management systems have evolved into highly sophisticated engineering...
Nature’s Own
How much compostable material is out there? And how much is it worth? Begin with the fact that Americans throw away on average about 4.5 pounds of municipal solid waste per person...
Getting a Handle on the Problem
Once municipal solid waste (MSW) and construction and demolition debris (CDD) show up at a materials recovery facility (MRF) or transfer station, there is a need for further handling...
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