高温焚烧对秸秆灰渣养分含量的影响  

Effect on the content and availability nutrient in straw ash under the high temperature

作　　者：刘鸣达[1] 肖质净[1] 王厚鑫[1,2] 胡艳丽[1] 赵君怡[1] 

机构地区：[1]沈阳农业大学土地与环境学院,辽宁沈阳110161 [2]铁岭市环境保护监测站,辽宁铁岭112000

出　　处：《可再生能源》2009年第3期46-48,52,共4页Renewable Energy Resources

摘　　要：采用模拟高温方式焚烧向日葵、玉米、水稻3种秸秆,测定其灰渣中磷、钾、钙、镁4种养分含量,探讨养分变化原因及规律。测试结果表明:在高温焚烧条件下,随着焚烧温度的升高,秸秆产生的灰渣量逐渐减少,在同一温度下,水稻秸秆灰渣量明显高于玉米和向日葵秸秆灰渣量;随着焚烧温度的提高,向日葵秸秆灰渣中磷、钾、钙、镁含量逐渐升高,玉米秸秆灰渣中磷、钙、镁含量逐渐升高,但钾含量先升高后降低,水稻秸秆灰渣中各元素含量均先升高后降低。Simulating high-temperature incinerations technology, materials were used in sunflow- er, corn and rice, three kinds straw, and then determinate the content of P, K, Ca and Mg in these ashes. It is supposed to find the reasons and the regulation for these nutrient changes in high-tern- perature incineration conditions. The result shows that, under the incineration condition, the vol- ume of straw ash had gradually become smaller with the increasing burning temperature; at the same temperature, the rice straw ash was significantly higher than the volume of corn and sunflow- er stalks. As the improving temperature, P, K, Ca and Mg content in sunflower straw ash gradually increased; P, Ca and Mg content in corn stalks is also the gradually increased, but the K content was first increased and then decreased; and the character of rice straw ash content of each element in the performance lower after rising than the first.

关 键 词：高温焚烧 秸秆灰渣 养分 

分 类 号：S216.2[农业科学—农业机械化工程] TK6[农业科学—农业工程]