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作 者:邵伟[1,2] 张小飞[1] 余雄[1] Shao Wei Zhang Xiaofei Yu Xiong
机构地区:[1]新疆农业大学动物科学学院,新疆乌鲁木齐830052 [2]新疆肉乳用草食动物营养实验室,新疆乌鲁木齐830052
出 处:《饲料工业》2017年第4期44-49,共6页Feed Industry
基 金:"十二五"国家科技支撑项目[2012BAD12B09]
摘 要:试验选用分子筛XF-4作为吸附剂,对冬季奶牛圈舍中CO_2、CH_4、NH_3和H_2S进行吸附试验。用便携式气体检测仪检测风机口排出的CO_2、CH_4、NH_3和H_2S浓度,悬挂吸附剂的为试验组,不悬挂吸附剂的为初始组。两者之差即为吸附剂XF-4的吸附浓度,根据实际测得的气温、气压、风速,利用理想气体状态方程推导出公式,将ppm换算为mg/m3。当试验组浓度与初始浓度无差异性时停止试验。结果表明:1 kg吸附剂XF-4春季吸附CO_2 73.21 g、CH_4 10.06 g、NH_3 1.52 g、H_2S 2.05 g;夏季吸附CO_2 70.47 g、CH_4 9.23 g、NH_3 1.67 g、H_2S 2.13 g;秋季吸附CO_2 78.75 g、CH_4 10.97 g、NH_3 2.05 g、H_2S1.86 g;冬季吸附CO_2 85.95 g、CH_4 12.36 g、NH_3 2.87 g、H_2S 1.88 g。CO_2、CH_4和NH_3吸附重量与温度负相关性显著(P<0.05),CO_2、CH_4吸附重量与湿度正相关性极显著(P<0.01),NH_3吸附重量与湿度正相关性显著(P<0.05),与气体初始浓度正相关性显著(P<0.05);H_2S吸附重量与湿度负相关性显著(P<0.05),与温度正相关性极显著(P<0.01)。This experiment tested the adsorption capacity to CO2, CH4, NH3 and H2S of materials adsor- bent XF-4 in the cowshed. Take suspension adsorbent as the experimental group, and tile control group had no adsorbent. The different values between the two groups were the adsorption concentration of XF-4. Use the ideal gas state equation to deduce formula according to the actual measured tempera- ture, atmospheric pressure and wind speed. Put ppm being converted to mg/m^3, stop the test when there was no obvious difference between the experimental group and control group. The experimental data showed that 1 kg of adsorbent XF-4 can adsorb CO2 73.21 g, CH4 10.06 g, NH31.52 g and H2S 2.05 g in spring, adsorb CO2 70.47 g, CH49.23 g, NH3 1.67 g and HaS 2.13 g in summer, adsorb CO., 78.75 g, CH4 10.97 g, NH32.05 g and H2S 1.86 g in autumn, adsorb CO2 85.95 g, CH4 12.36 g, NH3 2.87 g and H2S 1.88 g in winter. The adsorption to CO2, CH4 and NH3 had significant negative relation- ship with the temperature (P〈0.05), and they had significant positive relationship with the humidity (P〈 0.01 or P〈0.05), it also had positive relationship with the gas initial content(P〈0.05). The adsorption to H2S was negative related to the humidity(P〈0.05) and positive related to the temperature(P〈0.01).
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