Radiological Impacts and Utilization of Phosphogypsum

摘要：

The production of phosphoric acid from natural phosphate rock by the wet process gives rise to an industrial by-product called phosphogypsum (PG). About five tons of PG are generated from phosphoric acid production per ton. The massive phosphogypsum without any treatment and dumping in large stockpiles cause serious environmental damage, whereas the naturally occurring radionuclides (i.e. 238U,226Ra,232Th,210Po,2l0Pb,40)K) in PG also poses threats to environment and human health. This work illustrated different environment impacts containing atmosphere contamination, water contamination, soil contamination, plant contamination and the damage to human being, which are associated with PG and radionuclides in the period of storage. The methods described in the literature to minimize the negative effects of PG and radionuclides were classified by treatment type, i.e. physical, chemical, biological, etc., and different suggested applications for PG were detailed.

关键词： phosphogypsum radionuclides waste utilization building material

作者: Duntao SHU Yuehong YANG Huaiyu ZHANG Chongjun BAO

作者单位: Faculty oj Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China, 650093

会议类型: 国际会议

会议名称: The Sixth International Conference on Waste Management and Technology(第六届固体废物管理与技术国际会议 ICWMT 6)

会议地点: 苏州

会议语种:英文

页码: 139-145

在线出版日期: 2011-08-30（万方平台首次上网日期，不代表论文的发表时间）