Category
page 1Waste

waste
thumb|alt=Bucket loader dumping a load of waste at a waste depot|Solid waste after being shredded to a uniform size
sawdust
thumb|Sawdust made with hand saw
thumb|:ja:オガ炭|Ogatan, Japanese [[charcoal briquettes made from sawdust]]
thumb|Sawdust vendors in Kashgar markets
food waste
wastage of food due to discardment, disposal, expiration, or loss
municipal solid waste
type of waste
hazardous waste
waste materials that exhibit hazardous characteristics

chaff
300px|thumb|Rice chaff
Chaff (; ) is dry, scale-like plant material such as the protective seed casings of cereal grains, the scale-like parts of flowers, or finely chopped straw. Chaff cannot be digested by humans, but it may be fed to livestock, ploughed into soil, or burned.
marine debris
human-created waste that has deliberately or accidentally been released in a lake, sea, ocean or waterway
used good
good that is being purchased by or otherwise transferred to a second or later end user
fly ash
residue of coal combustion
biodegradable waste
Waste that can naturally decompose, such as food scraps, peels, or fallen leaves.
waste heat
Waste heat is by necessity produced both by machines that do work and in other processes that use energy, for example in a refrigerator warming the room air or a combustion engine releasing heat into the environment.
animal product
material derived from the bodies of animals
red mud
waste product from the production of alumina

dirt
thumb|The great dust heap of London at Battle Bridge in 1836, next to the Smallpox Hospital
thumb|right|Dirty Dicks is a Bishopsgate pub named after [[Dirty Dick, who once owned it and was notoriously filthy.]]
thumb|Dirt-covered sidewalk in Brooklyn, NYC being swept during a community Clean-up (environment)|clean-up
Dirt is any matter considered unclean, especially when in contact with a person's clothes, skin, or possessions. In such cases, they are said to become dirty.
Common types of dirt include:
Debris: scattered pieces of waste or remains
Dust: a general powder of organic or mineral
wood ash
residue powder left after the combustion of wood
excrement
waste materials emitted by evacuation from animal organisms
industrial waste
waste produced by industrial activity or manufacturing processes
construction waste
unwanted material produced directly or incidentally by the construction or industries
toxic waste
waste material that is toxic
chemical waste
waste that is made from harmful chemicals
waste oil
Unsuitable petroleum-based or synthetic oil
packaging waste
the part of the waste that consists of packaging and packaging material
Garbage Pail Kids
sticker trading cards
green waste
biodegradable waste
ship graveyard
location where scrapped ships are left to decay and disintegrate
bulky waste
household waste too large for regular collection
agricultural waste
material discarded as a byproduct of agriculture

demolition waste
waste debris from destruction of buildings, roads, bridges, or other structures

bottom ash
solid residue of combustion in the lower part of an industrial oven
garbage
thumb|right|Collected garbage at Attero, Wijster, the Netherlands
thumb|right|Litter dumped in a wetland area in the United States, among water lilies and marsh plants
coal slurry
product of coal preparation

post-consumer waste
trash or garbage discarded by the end-consumers of products
Business waste
waste generated in commercial establishments
clinker
general name given to waste from industrial processes
Inert waste
waste that doesn't undergo significant physical, chemical or biological changes