首页> 中文期刊> 《浙江农业学报》 >堆肥方式和温度对牛粪堆肥过程中天然类固醇激素降解的影响

堆肥方式和温度对牛粪堆肥过程中天然类固醇激素降解的影响

         

摘要

In order to achieve the innocuous treatment and resource utilization of livestock manure , fresh cow dung and straw were used as pile materials .Four types of hormone ( progesterone , androstenedione , 17β-estradiol and es-trone) were incubated in cow dung under different temperature (38, 50, 70℃) to study the influence of composting temperature on the degradation rate of 4 hormones under either aerobic or anaerobic composting conditions .It was shown that the degradation rate of 4 hormones ranged from 67.6% to 100% under different temperature , and the degradation rate ranged from 81.9% to 100% at 50 ℃.The degradation rate of estrone and androstenedione were higher under aerobic composting than that under anaerobic composting .The tested temperature (38-70 ℃) had lit-tle effect on degradation of 17β-estradiol, progesterone and androstenedione in cow dung .But, the degradation of es-trone was inhibited under 70℃.Giving compost maturity and removal of disease-causing organisms , aerobic compos-ting under 50 ℃seemed to be the best option .%为了实现畜禽粪便的无害化处理及资源化利用,以新鲜牛粪和木屑作为堆料,采用微型试管堆肥法,模拟研究了好氧和厌氧2种堆肥方式下不同堆肥温度(38、50、70℃)对黄体酮、雄烯二酮、17β-雌二醇、雌酮4种天然类固醇激素降解的影响.结果表明,不同温度条件下4种激素在2种堆肥方式下的去除率介于67.6%~100%,其中50℃下的去除率为81.9%~100%.4种激素中,雌酮和雄烯二酮在好氧堆肥方式下的去除率优于厌氧堆肥.试验温度(38~70℃)对17β-雌二醇、黄体酮和雄烯二酮在牛粪堆肥中的降解影响很小,而在70℃的高温堆肥条件下,雌酮的降解受到抑制.在保证堆肥腐熟、杀死有害微生物的前提下,50℃下好氧堆肥效果最佳.

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