Sustainability

Appendix 9: Definitions of Solid Waste material categories

Definitions of Material Categories from
2018 Waste Composition and Characterization Analysis,
written by Sloan Vazquez McAffee Municipal Solid Waste Advisors

Category

Definition

Dry Recoverable Fiber

All clean dry fiber, including carboard (OCC), chip board (cereal / shoe box), office paper, junk mail, and shredded paper that is readily recoverable using current waste / recycling processing technology.

PET UBC’s

PET plastic (#1) used beverage containers

HDPE

All readily identifiable HDPE, including UBC’s, five-gallon pails, laundry baskets, trash cans, toys, et al

Film Plastic

All film plastic from t-shirt bags to large garbage bags and painters’ tarps

Mixed Plastics

All readily identifiable plastics except PET, HDPE, and Film

Glass

CRV and plate (window) glass

Aluminum UBC’s

All aluminum beverage containers, primarily CRV

Mixed Ferrous

Tin cans, steel (pots, pans, construction material, shelving, etc.)

Mixed Non-Ferrous

Aluminum windows and doors, folding lawn chairs, stainless steel fixtures, brass hardware, copper pipe, et al.

Inerts

Dirt, rock, sand, brick, tile, ceramic, concrete, et al.

Hazardous Waste

Pesticide, insecticide, paint, solvents, oil, cleaning solutions, et al

E-waste

All items that operate via AC current or battery

Textiles

Clothing, bedding, carpet, towels, rags, et al

Organics

Yard / garden waste, food waste, clean wood, painted / treated wood, wet contaminated fiber, rubber

Wet Contaminated Fiber

Fiber that has been soiled and is not marketable as a post-consumer fiber grade, and fiber that would disintegrate during the mechanical sorting process (screens and / or air classification) making it non-recoverable with fiber products

Fines

Materials that fall through the 2” lattice on the sort table. Depending upon the source of the sample, the fines may be heavy in organic and inert materials, or in glass shards and small fiber (shred). The organic / inert fines are produced from unprocessed MSW or from “dirty” materials recycling facility (MRF) operations. The glass / fiber fines are produced from “clean,” or single-stream recycling processing plants.

Other

These materials are not readily recoverable as any of the other commodity / products. They are generally represented by items that are comprised of more than one material and cannot be readily, economically separated and recovered.

Source: Two season waste composition and characterization analysis (July 2018)

 

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