半阶梯式笼养蛋种鸡舍冬季日间空气污染物排放特征

发布时间：2018-04-02 10:34

本文选题：污染　切入点：排放控制　出处：《农业工程学报》2017年13期

【摘要】：蛋鸡舍空气颗粒物、空气微生物和氨气等污染物的排放不但影响场区生物安全,更会造成环境污染问题。该文采用直线多点均匀采样新型系统,对北京地区某半阶梯式笼养蛋种鸡舍冬季空气颗粒物、微生物和氨气3种污染物的日间排放进行监测和分析,研究半阶梯式笼养蛋种鸡舍冬季日间空气污染物排放特征。结果表明,该蛋种鸡舍试验期间舍内温度保持在18.0~20.0℃;间歇性通风条件下,风机的开启时长和舍外温度具有正相关关系(P0.05,R2=0.883 7);在冬季8:00-18:00期间,空气颗粒物的排放质量浓度为0.5~0.8 mg/m~3,每只鸡排放量为1.0~1.5 mg/h;空气微生物的排放浓度为4.0~4.5 log10CFU/m~3,每只鸡排放量为4.3~4.8 log10 CFU/h;氨气排放浓度为7.6~14.3 mg/m~3,每只鸡排放量为8.1~13.7 mg/h。试验期间,舍外温度低于舍内温度,试验鸡舍通风量及波动范围小,空气颗粒物、空气微生物和氨气的排放浓度、排放量与舍外温度、通风量、舍内相对湿度之间均未发现相关关系(P0.05)。该研究结果可为中国蛋鸡舍空气污染物排放特征提供参考。
[Abstract]:The emission of air particulates, microbes and ammonia not only affects the biosafety in the field, but also causes environmental pollution.In this paper, a new system of linear and multi-point uniform sampling was used to monitor and analyze the daytime emissions of air particulates, microorganisms and ammonia from a half-step cage house in Beijing.The emission characteristics of daytime air pollutants in half-step cage chicken coop in winter were studied.During the experiment, the temperature outside the house was lower than that in the house, the ventilation volume and fluctuation range of the test chicken house was small, the emission concentration of air particulates, microorganism and ammonia gas in the air, the discharge amount and the temperature outside the house, the ventilation amount,There was no correlation between relative humidity and relative humidity.The results can be used as a reference for the emission characteristics of air pollutants in Chinese hens.
【作者单位】：中国农业大学水利与土木工程学院农业部设施农业工程重点实验室北京市畜禽健康养殖工程技术研究中心;
【基金】：国家自然科学基金(31372350) 北京市自然科学基金(6154029) 国家现代农业(蛋鸡)产业技术体系项目(CARS-41-K20)
【分类号】：S831;X713

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