How much is too much? An exclusive look at the global glut of slag and pot slag
An exclusive survey by the Institute for Sustainable Development (ISD) shows that more than 90 percent of the world’s slag is not recycled or used to clean up polluted waterways, and that some of the most valuable slag, such as coal slag from China and cement slag of the United States, can’t be used to produce building materials.
According to the ISD’s research, nearly 40 percent of global slag comes from the industrial sectors, which account for 80 percent of total global greenhouse gas emissions, and the rest is made up of the domestic sector, which accounts for 30 percent.
The report is based on the annual Global Slag Index (GSII) released by the United Nations Environment Programme (UNEP), which shows the amount of greenhouse gas (GHG) that is produced by slag production, recycling and transportation in the world.
The report estimates that global industrial slag output is currently more than $2.6 trillion a year, and this amounts to just over a third of the global total.
The World Bank estimates that slag in the industrial sector produces about a quarter of the GHG emissions in the global economy, and some estimates suggest that half of the slag produced in the United Kingdom is made from domestic slags.
According a report by the International Slag Institute (ISI), a global industry trade group that represents a global network of slags producers, the global industrial industry accounts for about 80 percent, followed by the domestic slag industry at about 20 percent.
Industrial and domestic slagging have become so big that some countries, such the United Arab Emirates, have set up their own independent slagging authorities.
In fact, ISI’s latest Global Slang Index report says that almost 90 percent or more of the industrial slags that are produced worldwide are not recycled, and are destined for landfills.
This report has been compiled by ISI and its partner organizations, the International Forum on Slag and Waste Management (IFSSM), the Global Slags Management Association (GSMMA), the International Council on Sustainable Development and the Slag Management Society (SMS).ISI, ISD and GSMMA were formed in 1997 to share expertise on slag recycling and waste management in the developing world.
ISI is a member of the International Alliance for Slag Reduction, and GMSM is the global network that represents global slags recyclers.ISD and ISD are part of the World Bank Group.
ISD is responsible for research and development in sustainable waste management, and ISDSM is responsible to promote the recycling of industrial slagged and waste material.
The slags and other waste produced by industrial sectors can be recycled into cement, steel, aluminum, wood, glass and paper.
In the United states, nearly 50 percent of cement is made in factories, and about one-third of all steel used in the construction industry is made with steel slag.
The Global Slog Index is a report based on a review of all the slags produced in a given year.
The ISD calculates the total global amount of industrial and domestic waste produced in each country.
The global amount produced by the industrial and sub-industrial sectors in a year is estimated by taking into account the total amount of slagging produced worldwide and all the waste produced.
This includes industrial waste (such as scrap, paper, metal) as well as domestic waste (like cement, wood and plastic).
The industrial sector accounts for 80% of global greenhouse gases emissions.
The sub-industry sectors account for 10 percent.
In terms of raw material and use, the industrial production of coal, cement, aluminum and steel accounts for nearly 80 percent.
In terms of waste, the production of cement, iron, steel and steel account for 30% of total industrial slagging and waste production.
According the report, there are about 9,000 industrial and slagging facilities worldwide.
These facilities can produce 1.5 billion tons of slagged material per year, but only about 20 million tons of industrial waste is recycled and reused annually.
In comparison, the slagging industry accounts to less than 1 percent of all industrial waste production worldwide, and there are only about 100,000 recycling facilities worldwide, according to ISD.ISDs report shows that there is a global shortage of industrial recycling materials.
According to the report and the International Solid Waste Association (ISWA), global industrial recycling capacity is estimated to be about 3.5 trillion tons.
In comparison, recycling capacity in the domestic market is estimated at about 5 trillion tons, while the domestic recycling market is less than 300 billion tons.ISDSM says the international industry is facing an urgent need for industrial recycling.
This is because, according the ISDS, “global slag prices have doubled in the last two decades, while recycling capacity has increased at a rate of more
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