Phosphorus-Binding Capacity of Hydrated Ca-rich Oil-Shale Ash: Removal Capacity and the Mechanisms
1 Introduction Phosphorus is an important nutrient and its presence in soils is critically needed for the normal functioning of ecosystems. However, excess amounts of phosphorus as well as nitrogen are the main cause of eutrophication and thus one of the principle damage causing phenomenon to our water bodies 1. Large settlement wastewater treatment systems use the process of coagulation to remove phosphorus by the chemical agents e.g. Fe- and Al-sulfates. Conventional, biological, wastewater treatment plants and constructed wetland systems have proven effective for the removal of total nitrogen and variety of different pollutants but their phosphorus removal capacity is still a problem and has not been sufficiently solved. Moreover, continuing eutrophication, especially in fresh-water ecosystems, have led to increasing governmental regulatory pressure for the lowering of phosphorus concentrations through more enhanced phosphorus removal from wastewater.
Riho MOLLEP Margit KOIV Martin LIIRA Uo MANDER Christina VOHLA Kalle KIRSIMAE
Department of Geology,Institute of Ecology and Earth Sciences,University of Tartu,46 Vanemuise Stree Department of Geography,University of Tartu,46 Vanemuise Street,Tartu 51014,Estonia Department of Geology,Institute of Ecology and Earth Sciences,University of Tartu,46 Vanemuise Stree
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
2503-2504
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）