Category: Environmental Susatinability

The Oyster Lady of Wellfleet

Oyster Lady of WellfleetOriginally published August, 2018

We are in Wellfleet today where the oysters are world famous. We decided to learn more about the Oyster farmers- commercial oysters are planted rather than hunted. There are about 80 three-acre “grants” or oyster beds leased from the town of Wellfleet. The grants are a centuries-old Wellfleet custom and right now about 250 people of the 3,000 people who reside in Wellfleet year round are making their income off these beds. The beds are only accessible for a few hours at low tide.  One of the best “oystermen” in Wellfleet is actually a woman named Barbara Austin. She is a Wellfleet legend and  a long time champion of the Annual Wellfleet Shucking Competition. Click here if you want to learn more about the oyster lady of Wellfleet.

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Recycling Concrete for a more Sustainable Future

While in Madison, WI we stopped at this construction site to watch this concrete processing operation. This process includes the crushing and screening of large lumps of aggregate material in the construction and demolition (C&D) debris stream into smaller sizes suitable for construction use or further downstream processing.

I learned that construction and demolition (C&D) recycling is the process of recovering valuable resources from an array of inert construction waste, such as broken concrete, asphalt, soil, brick, metals, sand and stone that would otherwise be sent to the landfill. http://www.mclanahan.com

After this dry process, the wet processing part of the C&D recycling operation can include washing and scrubbing away deleterious material from the sound aggregate. It can also include classifying and dewatering the sand fraction. To add to the sustainability of the wet process, the resulting waste stream can include liquid-solid separation equipment for recycling reusable process water and getting the solids fraction to a drip-free, easy-to-manage state. http://www.mclanahan.com

The recycling process starts with a big pile of debris and ends with aggregate that can used for driveways, pathways, garden beds and affordable sub-base for roads. It can even be made into new concrete, saving valuable resources that would be otherwise used.
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