Anhui Agricultural Science Bulletin >
2025 , Vol. 31 >Issue 15: 25 - 29
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2025.15.007
Exploration and practice of “pig-biogas-grapes” ecological model
Received date: 2024-10-30
Online published: 2025-08-14
Taking the renovation and upgrading of biogas engineering facilities as a link, and building a new type of efficient ecological circular model that combines planting and breeding based on local conditions is one of the effective ways to achieve high quality agricultural development. The comprehensive utilization project of three biogas(marsh liquid, marsh gas, marsh residue) of a certain agricultural company in Jiaxing City, Zhejiang Province was taken as an example, the problems and causes of the company’s engineering facilities were analyzed, the renovation process of the “pig-biogas-grape” ecological circular model was discussed, and its benefits were analyzed. Through field visits and investigations, it was found that due to the long operation time and inadequate management and maintenance of the company’s comprehensive utilization project of three biogas, there were problems such as the need to improve the efficiency of anaerobic fermentation, the need to improve the facilities for the utilization of biogas fertilizer, the need to strengthen the resource utilization of biogas, the need to improve the storage facilities and utilization channels of pig manure and biogas residue, and the need to further standardize the application of biogas fertilizer. Specific renovation measures included through the expansion and optimization of anaerobic fermentation, the efficiency of anaerobic fermentation was improved; by combining multi-stage sedimentation and filtration, oxidation pond aeration, grape planting absorption, and pressure regulation and gas supply, the facilities for biogas liquid post-treatment, biogas liquid transportation, and biogas distribution were improved; by using mixed anaerobic and other fermentation technologies, the process of manure and sewage treatment was optimized; and the application technology of biogas fertilizer was standardized from seed soaking, base fertilizer, and top dressing. Through the above renovations, the “pig-biogas-grape” ecological circular model was successfully constructed. This model has achieved good economic, social and ecological benefits, including increasing the yield and quality of agricultural products; integrating green production technologies and promoting the integration of agricultural machinery and agricultural techniques; effectively solving the utilization problem of manure and sewage from large scale pig farms and protecting the ecological environment.
REN Jiajia , YOU Binqian , XU Chenyu , CAO Dunqi , SHEN Yan , CAI Zhulin , CHENG Qinhai . Exploration and practice of “pig-biogas-grapes” ecological model[J]. Anhui Agricultural Science Bulletin, 2025 , 31(15) : 25 -29 . DOI: 10.16377/j.cnki.issn1007-7731.2025.15.007
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