A Review on the Coming Scarcity of Phosphorus Rocks and the Importance of Recycling Phosphorus Wastes

  • Đỗ Khắc Uẩn

Abstract

Phosphate rock is a non-renewable resource. Total world phosphate rock reserves were estimated
approximately at 7355 million tons as P2O5. Currently, total cumulative production of phosphate rock
mined was about 1955 million tons as P2O5. Based on the statistical method and a least squares
optimisation which estimates a production at peak of 64 million tons/year as P2O5 and a peak year of
2040. After this period, phosphorus production will decline in quality, pressurize on prices and increase
international tensions. Current reserves could be depleted soon so recycling all wastes containing
phosphorus is very important and imperative to reduce the need for mined phosphorus as artificial
fertilizer. This review paper gave an analysis and assessment on the above issiues in detail to support
the warnings  related to the food security as well as environmental pollution. 
điểm /   đánh giá
Published
2012-11-22
Section
Bài viết