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HEAVY METALS IN THE WINDROW COMPOSTING OF PIG MANURE
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Proceedings of the Seventh International Symposium, 18-20 May 2005 (Beijing, China) Publication Date 18 May 2005 701P0205.(doi:10.13031/2013.18375)
Authors: Hongkun Huang, Hongmin Dong, Xiuping Tao
Keywords: copper, zinc, cadmium, windrow composting system, pig manure
Animal manure consists of nutrients and harmful organic matter. The heavy metals of animal manure come from animal feeds, such as copper, zinc, and cadmium. In the experiment, the pig manure was composted by windrow composting system with three treatments (peanut hull, EM, and wheat straw), and the heavy metals were analyzed. The results show that the copper and cadmium concentrations increased, while the zinc concentration remained unchanged after composting.(Download PDF) (Export to EndNotes)