GIS-based analysis to assess biogas energy potential as support for manure management in Southern Italy

Q3 Engineering

Acta IMEKO Pub Date : 2024-03-26 DOI:10.21014/actaimeko.v13i1.1688

Ester Scotto di Perta, E. Cervelli, R. Grieco, Antonio Mautone, S. Pindozzi

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引用次数: 1

Abstract

Anaerobic digestion can provide a valuable aid to manure management while producing renewable energy. Biogas production is highly dependent on the size and composition of livestock farms, and the availability of fresh manure can vary throughout the year, limiting reliable assessment of potential production. The aim of this study is to develop an affordable GIS-based analysis to support manure management, based on a highly detailed livestock farm database. Databases refer to the years 2013 and 2019 and report the herd consistency and the age of each class head. Kernel density (KD) was used to identify emerging hotspot areas with potentially high concentrations of nitrogen applied to the field. Three KD classification methods were compared: defined interval (DI) into 3 classes (0-170, 170-340, > 340 kg N/ha), quantile (Q) and natural break (NB). The results show that the DI and NB areas correspond to 40 % and 84 % of the total N of buffalo origin in the Campania region, with a N surplus in the hotspot areas localized in nitrate vulnerable zones of 55 and 6 % respectively. The biogas produced from 50 % of the buffalo manure in these areas generates sufficient energy to allow the removal of the N surplus.

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基于地理信息系统的分析，评估沼气能源潜力，支持意大利南部的粪肥管理

厌氧消化可为粪便管理提供宝贵的帮助，同时生产可再生能源。沼气生产在很大程度上取决于畜牧场的规模和组成，而且新鲜粪便的可用性一年四季都可能不同，这限制了对潜在产量的可靠评估。本研究的目的是以高度详细的畜牧场数据库为基础，开发一种经济实惠的基于地理信息系统的分析方法，以支持粪肥管理。数据库涉及 2013 年和 2019 年，报告了畜群的一致性和每类牲畜的年龄。内核密度（KD）用于识别新出现的热点区域，这些区域可能是氮肥施用量较高的区域。对三种 KD 分类方法进行了比较：将定义区间（DI）分为 3 个等级（0-170、170-340、>340 千克氮/公顷）、量值（Q）和自然断裂（NB）。结果表明，DI 和 NB 区域分别占坎帕尼亚地区水牛源性氮总量的 40% 和 84%，硝酸盐易受影响区的热点区域氮过剩量分别为 55% 和 6%。这些地区 50% 的水牛粪便产生的沼气产生的能量足以清除过剩的氮。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta IMEKO Engineering-Mechanical Engineering

CiteScore

2.50

自引率

0.00%

发文量

期刊介绍： The main goal of this journal is the enhancement of academic activities of IMEKO and a wider dissemination of scientific output from IMEKO TC events. High-quality papers presented at IMEKO conferences, workshops or congresses are seleted by the event organizers and the authors are invited to publish an enhanced version of their paper in this journal. The journal also publishes scientific articles on measurement and instrumentation not related to an IMEKO event.