摘要
为了研究外源性吸附剂对奶牛产生有害气体的吸附能力,试验选择吸附剂XF-4对夏季奶牛圈舍中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排风扇口排出的CO_2、CH_4、NH_3和H_2S浓度,悬挂吸附剂的为试验组,不悬挂吸附剂的为对照组,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/m^3,当试验组与对照组浓度无差异性时停止试验。结果表明:1 kg吸附剂XF-4可吸附NH310.24 g、CO21.70 g,对CH_4、H_2S无吸附能力。吸附剂XF-4对NH_3和CO_2吸附量与吸附剂pH值负相关性极显著(P<0.01),与温度、湿度、气体浓度相关性不显著(P>0.05)。吸附剂XF-4在4~7 h对两种气体吸附效果最好,悬挂31 h需要更换吸附剂。
To study the adsorption capacity of exogenous adsorbent to harmful gases produced by dairy cows, adsorbent XF - 4 was selected to conduct an adsorption test for carbon dioxide （ CO2 ） , methane （ CH4 ） , ammonia （ NH3 ） and hydrogen sulfide （H2S） in the cowshed in summer. A portable gas detector was used to detect the concentrations of CO2 , CH4 , NH3 and H2 S discharged by the exhaust fans, and the fans suspended with and without adsorbent XF -4 were selected as the experimental group and the control group, respectively. The difference between the two groups was the adsorption concentration of adsorbent XF - 4. The ideal gas state equation was used to deduce a formula according the actual measured temperature, atmospheric pressure and wind speed, and then the ppm was converted to mg/m3 , while the test was stopped when there was no obvious difference between the experimental group and control group. The results showed that adsorbent XF -4 of 1 kg could adsorb NHs of 10.24 g and CO2 of 1.70 g, which had no adsorption capacity to CH4 and H2S. The adsorption quantity of adsorbent XF -4 adsorbent to NHs and CO2 had an extremely significant positive correlation （ P 〈 0.01 ） with the PH value of adsorbent XF - 4, and had no significant correlation （ P 〉 0.05 ） with the temperature, relative humidity, and gas concentration, temperature. The results indicate that the adsorbing effect of adsorbent XF -4 to NH3 and CO2 adsorption was best at 4 to 7 h, and the adsorbent XF - 4 should be replaced after suspending for 31h.
作者
候良忠
张小飞
邵伟
郭守立
余雄
HOU Liangzhong ZHANG Xiaofei SHAO Wei GUO Shouli YU Xiong(College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China Xinjiang Key Laboratory of Herbivore Nutrition for Meat and Milk Production, Urumqi 830052, China)
出处
《黑龙江畜牧兽医》
CAS
北大核心
2016年第10期17-21,共5页
Heilongjiang Animal Science And veterinary Medicine
基金
现代农业(奶牛)产业技术体系建设专项资金资助项目(CARS-37)
"十二五"国家科技支撑计划项目"牧区及农牧交错带奶牛健康养殖技术集成及产业化示范""新疆肉牛安全高效饲养关键技术研究与示范""不同用途马高效
安全养殖共性技术研发"(2012BAD12B09
2011BAD47B02
2012BAD45B01)
自治区重大专项"新疆农区奶牛健康养殖及疫病防控技术推广与示范"(201231101)
新疆肉乳用草食动物营养实验室开放课题
