every tonne of paper recycled saves enough electricity to power a 3-bedroom home for six months.
every tonne of paper recycled saves enough electricity to power a 3-bedroom home for six months.
every tonne of paper recycled saves enough electricity to power a 3-bedroom home for how long?
six months
energy consumption is reduced by recycling, although there is debate concerning the actual energy savings realized. the energy information administration claims a 40% reduction in energy when paper is recycled versus paper made with unrecycled pulp, while the bureau of international recycling (bir) claims a 64% reduction. some calculations show that recycling one ton of newspaper saves about of electricity, although this may be too high (see comments below on unrecycled pulp). this is enough electricity to power a 3-bedroom european house for an entire year, or enough energy to heat and air-condition the average north american home for almost six months. recycling paper to make pulp actually consumes more fossil fuels than making new pulp via the kraft process; these mills generate most of their energy from burning waste wood (bark, roots, sawmill waste) and byproduct lignin (black liquor). pulp mills producing new mechanical pulp use large amounts of energy; a very rough estimate of the electrical energy needed is 10 gigajoules per tonne of pulp (2500 kw·h per short ton).
paper recycling
from an ecological perspective, steel may be regarded as a closed-loop material: post-consumer waste can be collected, recycled and used to make new cans or other products. each tonne of scrap steel recycled saves 1.5 tonnes of co, 1.4 tonnes of iron ore and 740kg of coal. steel is the world’s most recycled material, with more than 85% of all the world’s steel products being recycled at the end of their life: an estimated 630 million tonnes of steel scrap were recycled in 2017, saving 945 million tonnes of co. 









































section::::recycling.:sustainability and recycling of steel beverage cans.:steel can recycling.
steel and tin cans