The Study of Manufacture of the New Type Coal Ash Ceramsite and Treating Landscape Waste Water with the New Type Coal Ceramsite

摘要

Coal ash, clay, coal powder and special type additive used to produce new type coal ash ceramsite by the sinter method. Effects of fly ash/clay/coal powder/special type additive ratio and calcinations temperature and calcinations time on compression strength and water holding capacity of the granules were studied. The best project is using a mixture of fly ash 80%, clay 10%, coal powder 5% and special type additive 5% produced by 30 min of sintering at 1150°C. The results of landscape tiny pollute wastewater experiments show the wipe off rates of COD, NH3-N and P are above 80%), 60% and 70%o separately.