Waste and wastes are unwanted or unusable materials. Waste is any substance which is discarded after primary use, or it is worthless, defective and of no use.

The term is often subjective (because waste to one person is not necessarily waste to another) and sometimes objectively inaccurate (for example, to send scrap metals to a landfill is to inaccurately classify them as waste, because they are recyclable). Examples include municipal solid waste (household trash/refuse), hazardous waste, wastewater (such as sewage, which contains bodily wastes (feces and urine) and surface runoff), radioactive waste, and others.


United Nations Environment Program

According to the Basel Convention,

United Nations Statistics Division, Glossary of Environment Statistics

European Union

Under the Waste Framework Directive, the European Union defines waste as "an object the holder discards, intends to discard or is required to discard."


There are many waste types defined by modern systems of waste management, notably including:

Latest News for: Waste bio


San Jose could be fined if it doesn't clear homeless encampments along waterways

NBC Bay Area 02 Mar 2024
San Jose is facing an expensive ultimatum from the state. The state water board is essentially ordering the city to clear homeless encampments along its waterways, saying those camps are leading to major water pollution ... "Per pollutant" drives up the fines since a single pollutant can be trash, bio waste, plastics or metals ... Local. Waymo 2 hours ago ... ....

Changing City: Biogas plant coming at Colaba-Bandra-SEEPZ Metro 3 corridor to illuminate LT market

Indian Express 01 Mar 2024
The plant will utilise organic wet waste collected by the Brihanmumbai Municipal Corporation (BMC) ... A 1.5 TPD capacity bio-methanation plant will be set up to facilitate production of clean energy from organic wet waste collected from hotels, restaurants, banquet halls and municipal markets etc....

Gambia develops first-ever bioenergy action plan

The Point 01 Mar 2024
She said ... Dr. Simeon K ... He therefore indicated that adequate preparation must be made to sensitise and inform the ECOWAS population on the opportunities that exist in sustainable management, transformation and utilisation of biomass and bio-waste for cooking, heating and power generation and reduce over-dependence on woody biomass .......

Chandigarh gets plant for 100% processing of wet waste

Hindustan Times 01 Mar 2024
He also directed the commissioner to expedite clearing of legacy waste ... Can process 300 tonnes of waste per day ... “The plant will cater to the processing needs of wet waste until the Integrated Solid Waste Management Plant, designed for wet waste through bio-methanation, becomes operational,” she added....

IVECO to supply 178 sustainable trucks to DHL in Germany

Enid News & Eagle 29 Feb 2024
... powered by bio-CNG. Bio-CNG is a sustainable renewable fuel derived from waste and residual materials; its use can reduce CO2 emissions by up to 95% compared to a diesel engine and, if the gas is sourced from manure, could even achieve a negative carbon footprint of up to -120%....

Chandigarh mayor Kuldeep Dhalor takes charge, flexes muscles on Day 1

Hindustan Times 29 Feb 2024
Aam Aadmi Party’s Kuldeep Kumar Dhalor, who clinched victory in the Chandigarh mayoral elections after a hard-fought legal battle that went up to the Supreme Court, assumed charge as the mayor on Wednesday ... (Ravi Kumar/HT) ... Red-carpet welcome for new mayor ... The legacy waste lying dumped at Dadumajra landfill will be bio-mined completely ... .......

Waste management in Chandigarh: HC notice on plea for probe into MC’s claims

Hindustan Times 28 Feb 2024
The petition seeking clearing of legacy waste is pending since 2016 and Amit Sharma had become a petitioner in 2021 in the PIL ... on waste management before the high court ... As of legacy waste of about 13 lakh MT, the bio-remediation is underway and is to be completed by month end....

Caroline Commissioners enact DAF storage legislation

The Star Democrat 28 Feb 2024
Resolution 2024-004 deals with the storage of bio-solids, Resolution 2024-005 addresses the “vegetable processing waste/wastewater and other specified substances,” Resolution 2024-006 focuses on the storage of “materials other than livestock manure” in a “structure designed ......
photo: Creative Commons
Microsoft building

Microsoft to Acquire 10,000 Credits From Biochar Startup Bio-Logical -- OPIS

Market Watch 27 Feb 2024
Microsoft has inked a deal to acquire 10,000 carbon removal credits from Bio-Logical Carbon, a Kenya-headquartered biochar project developer, the latter company announced Tuesday ... Bio-Logical said it generates a circular economy by collecting agricultural waste, generating biochar, mixing it with fertilizer and distributing it back to local farmers....


Longview News-Journal 27 Feb 2024
Using bio remedial material and other proprietary equipment and processes, we are able to extract and eliminate many hazardous waste materials found in today's oil, industrial wastewater and soil ... along with the application of our non-chemical, bio remedial material....

Biofuels tested in steam, diesel locomotives to cut CO2 levels

Asahi News 27 Feb 2024
The test will see how the combustion efficiency and the boiler condition can be affected if something called bio-coke, which is fashioned from buckwheat hulls and wood waste, substitutes 40 percent of what is burned to maintain the fire. “Bio-coke can generate only 60 percent of ......

Mr Trash Dumpster Rentals is now offering junk removal and other services through a partnership ...

GetNews 26 Feb 2024
Trash Dumpster Rentals, a leading waste management company, has announced the expansion of its services to include SC. In partnership with Bio One Greenville, the company now offers a comprehensive range of cleaning services, including crime scene cleaning, deep cleaning, and hoarding house clean-outs....

Fish scale waste: A sustainable solution for security and pollution control

Phys Dot Org 26 Feb 2024
National University of Singapore (NUS) physicists have developed a method of converting fish scale waste into a versatile material with dual functionalities—encryption of sensitive information and acting as a bio-adsorbent to effectively remove Rhodamine B pollutant ... When heated, the fish scale waste undergoes both chemical and physical changes....