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


GCC ‘needs $85bn’ to achieve sustainable waste management

Gulf Daily News 03 Oct 2022
It will take $60-85 billion invested across four key value streams, plastic, concrete and cement, metal, and bio-waste over the next 20 years to meet waste management targets throughout the GCC region, says a report ... Circularity also supports economic independence from imported goods such as fertiliser through bio-waste recycling....

Swachh Survekshan-2022:  Rank disregard for Swachh rankings, industrial hub stuck in limbo

Hindustan Times 03 Oct 2022
The annual Swachhata rankings have encouraged civic bodies across the country to improve waste management and put in efforts to become a garbage-free city ... waste disposal ... MC officials say the project to commence bio-remediation of legacy waste is expected to commence this month....

Scientists create technology to exploit electrical nanowires hidden in soil and oceans

Interesting Engineering 03 Oct 2022
A variety of potential applications of this technology include cleaning up toxic waste, tackling global methane emissions, creating new renewable fuels and electronic sensors, and even potential uses in space. Most Popular ... science ... Photos. The technology turning agricultural waste into 'sticky' bio-oil for permanent carbon storageSade Agard....

India's cleanest city has no garbage bins, earns crores of rupees from its waste

The Telegraph India 02 Oct 2022
The highlight of the IMC's waste ... The IMC earned Rs 14.45 crore from waste disposal last fiscal, including Rs 8.5 crore from the sale of carbon credits in the international market and Rs 2.52 crore as annual premium from a private company for providing waste to the bio-CNG plant....

Indore hits a Swachh Sixer; only one to get 7-star rating; Madhya Pradesh #1 state

The Times of India 02 Oct 2022
... bio-CNG plant ... This year, Indore went ahead with six-bin concept to segregate waste - dry, wet, domestic hazardous waste and domestic bio-medical waste , e-waste and plastic waste, said Sandeep Soni, former IMC additional commissioner, who was recently transferred to Ujjain....

Cockroach zapper: Researchers turn to AI to solve pest problem

Interesting Engineering 30 Sep 2022
A researcher in the U.K. seems to have reached his wit's end with cockroaches and developed a turret-based laser system to tackle them ... See Also ... How does the system work ... but has spent his time zapping mosquitoes with lasers ... Abstract ... The technology turning agricultural waste into 'sticky' bio-oil for permanent carbon storageSade Agard ... ....

The last days of an outback town where every breath can be toxic

Indian Express 30 Sep 2022
Shashi Tharoor. ‘I don’t think everyone who voted BJP in 2014... Hindu-Muslim violence in the UK ... Wittenoom became a carcinogenic time bomb as mining waste products known as tailings were brought into the town, paved into roads and scattered in playgrounds and gardens to suppress dust ... Legacy waste bio-mining starts at Dadumajra ... 31 ... On Sept....

Photos: The technology turning agricultural waste into 'sticky' bio-oil for permanent carbon storage

Interesting Engineering 29 Sep 2022
The company captures thousands of tons of carbon by transforming CO2-rich plant waste into bio-oil before storing it geologically through injection wells ... The approach does make sense, considering how experts describe such a build-up of carbon, in the form of bio-waste, as a supercharged fuel ... Bio-oil sequestration delivery by semitrailer in Kansas....

Chandigarh: Legacy waste bio-mining starts at Dadumajra

Indian Express 29 Sep 2022
The work of bio-mining measuring 8 acres of land fill site having 7.67 lakh metric tons of legacy waste dumped therein will be completed within 43 months from the date of start by M/s Akanksha Enterprises, a Karnal-based firm at project cost of Rs 68 crore ... for solid waste....

Bio-CNG plants approved for Lucknow, Prayagraj and Ghaziabad

Hindustan Times 29 Sep 2022
Prayagraj, Lucknow and Ghaziabad districts will have bio-solid waste-based bio CNG (compressed natural gas plants), said the U.P ... for the establishment of bio-CNG plants in PPP (public-private partnership) mode....

In a first, pancreas transplant recipient delivers healthy baby at PGIMER

Indian Express 29 Sep 2022
Legacy waste bio-mining starts at Dadumajra2Punjab minister Fauja Singh Sarari served notice in ‘extortion plan’ case3Chandigarh airport is Shaheed Bhagat Singh International Airport nowMore from Chandigarh ... Legacy waste bio-mining starts at Dadumajra ... ....

Gurugram: Is Basai plan viable? Leachate threat more at site

The Times of India 29 Sep 2022
Ecogreen, the firm assigned by MCG to manage waste, will get a five-acre land in Basai for the work ... But efficient waste management is about segregation at source and resource recovery, said experts, adding that composting, biogas installation, bio-methanation, and recycling of dry and electronic waste are some other options for managing waste....

Waste processing capacities of ULBs increase from 18% in 2014 to 73% at present: Puri | Mint

Live Mint 29 Sep 2022
Puri on Thursday said that waste processing capacities of urban local bodies (ULBs) have increased from a mere 18% in 2014 to 73% at present ... Noting the importance of ‘Waste to Wealth’ for ... Bio-methanation plants and waste-to-energy plants are being put up in large cities, he said....

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