罗娟, 赵立欣, 姚宗路, 冯晶, 于佳动, 袁艳文. 规模化养殖场畜禽粪污处理综合评价指标体系构建与应用[J]. 农业工程学报, 2020, 36(17): 182-189. DOI: 10.11975/j.issn.1002-6819.2020.17.022
    引用本文: 罗娟, 赵立欣, 姚宗路, 冯晶, 于佳动, 袁艳文. 规模化养殖场畜禽粪污处理综合评价指标体系构建与应用[J]. 农业工程学报, 2020, 36(17): 182-189. DOI: 10.11975/j.issn.1002-6819.2020.17.022
    Luo Juan, Zhao Lixin, Yao Zonglu, Feng Jing, Yu Jiadong, Yuan Yanwen. Construction and application of comprehensive evaluation index system for waste treatment on intensive livestock farms[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(17): 182-189. DOI: 10.11975/j.issn.1002-6819.2020.17.022
    Citation: Luo Juan, Zhao Lixin, Yao Zonglu, Feng Jing, Yu Jiadong, Yuan Yanwen. Construction and application of comprehensive evaluation index system for waste treatment on intensive livestock farms[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2020, 36(17): 182-189. DOI: 10.11975/j.issn.1002-6819.2020.17.022

    规模化养殖场畜禽粪污处理综合评价指标体系构建与应用

    Construction and application of comprehensive evaluation index system for waste treatment on intensive livestock farms

    • 摘要: 该研究针对当前规模化养殖场畜禽粪污处理技术模式区域差异大、缺乏综合效益评价等问题,以规模化畜禽养殖场为研究对象,从规划布局、粪污收储运、高效处理转化、农田利用的全链条出发,应用层次分析法构建了一套全面衡量畜禽粪污处理的综合评价指标体系,涵盖技术、经济、环境3个方面,包括3个一级指标、6个二级指标和15个三级指标,并运用该指标体系对中国3个主要奶牛养殖区6种粪污处理技术模式进行评价比较。结果表明:东北地区宜采用前分离肥料模式和前分离垫料模式,西北地区宜采用肥料模式和前分离垫料模式,华北地区宜采用厌氧发酵模式。进一步以河北某规模化奶牛养殖场为例进行应用分析表明,该养殖场的粪污处理水平达到了良好水平,与实际情况相符。该指标体系能够客观评价规模化养殖场畜禽粪污处理的综合效益,且能根据评价情况给出优化改进建议,具有实践指导性和可操作性,可为粪污处理工程建设和综合效益评价提供方法体系和理论支撑。

       

      Abstract: Livestock breeding industry is rising rapidly, due to the increasing consumption demand for livestock products, as the improvement of the living standard of Chinese residents in recent years. There is a trend towards intensive, large-scale and professional cultivation in the livestock and poultry sectors, based on both practical experience from other countries, and the guidance of the Chinese government. Consequently, an increasing trend can also be found in the discharge amount of livestock manure, containing most nutrients while harmful ingredients. If these livestock manures were not treated timely, the environment would be polluted seriously, which would also in turn prevent the development of livestock breeding industry. As such, the livestock production has become "one of the three most significant contributors to today's most serious environmental problems". Intensive livestock cultivation has also posed a great challenge on natural ecological system. In this study, taking the manure treatment in intensive livestock farms as the research object, an evaluation index system was established by considering the regional differences, in order to evaluate comprehensive benefit of technical modes for the waste treatment in the current large-scale livestock and poultry manure. An Analytic Hierarchy Process (AHP) method was used to construct the comprehensive evaluation index system, based on the whole production chain, including planning layout, manure collection-storage-transportation, efficient treatment, transformation, and utilization to farmland. Three aspects of the index system can be divided into the technical, economic and environmental indicators, including three first-level index, six second-level index, and 15 third-level index. An expert scoring method was used to determine the weight of each index. Six types of modes for fecal sewage treatment technology were selected to verify the index system in three dominant areas of cow breeding. An example of field experiment was taken as a large-scale dairy farm in Hebei Province. The results showed that: the evaluation method can accurately assess the comprehensive benefits of livestock manure treatment in large-scale farms, covering a practical guidance and good operability. Specifically, the pre-separation composting mode and pre-separation bedding mode were recommended in Northeast China, whereas, the composting mode and pre-separation composting mode were recommended in Northwest China, and the fermentation mode was recommended in North China. It infers that the solid-liquid separation can have a significant impact on the treatment effect in different stages of manure treatment. In Northeast and Northwest China, the performance of pre-separation mode was better than that of the former separation. There was no significant difference in the post-separation mode in North China. The scores of environmental and technical indicators ranked higher at the waste treatment level for the large-scale dairy farm in Hebei Province, indicating a good performance of mode. Some suggestions were also proposed based on the existing conditions in the economic indicators. A case analysis further verified the practical guidance, operability and rationality of the index system. Therefore, this finding can provide a methodology system and theoretical support for the construction of fecal sewage treatment, as well as a sound important reference for the comprehensive benefit evaluation in the waste treatment of intensive livestock farms in the future.

       

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