水作为原材料对材料循环性的影响 - - 匈牙利食品部门的案例研究
Réka H-Hargitai1, Viola Somogyi1
1University of Pannonia, Sustainable Solutions Research Lab, Veszprém, Hungary.
Heliyon
|July 24, 2023
概括
这项研究将水融入食品行业的循环度指标中,表明再利用水可以显著提高循环经济指标. 然而,环境效益取决于用水量,可能会产生意想不到的结果.
科学领域:
- 环境科学 环境科学
- 工业生态学 工业生态学
- 食品科学 食品科学 食品科学
背景情况:
- 线性经济模式主导着食品工业,特别是在水资源管理方面.
- 现有的循环经济研究往往忽视了水作为原材料的作用.
- 在水密集型行业中评估循环性需要精细的方法.
研究的目的:
- 开发和应用包括水在循环计算中的方法.
- 评估水再利用场景对家禽加工厂循环性指标的影响.
- 分析增强水循环的环境影响.
主要方法:
- 修改的循环经济指标原型 (CEIP) 和材料循环性指标 (MCI/MCI').
- 水的足迹分析.
- 生命周期评估 (LCA) 用于量化环境影响.
- 一个匈牙利家禽加工厂的案例研究.
主要成果:
- 在技术或灌中再利用水,使CEIP值从低到中高大幅增加.
- 在50-100%的水再利用下,MCI值从0.171上升到0.848,减少了76%的环境影响.
- 水足迹分析显示,99%的水被纳入产品;技术用水与养殖不同.
结论:
- 通过纳入水资源管理,可以将线性食品工业流程转向循环.
- 增加循环效应并不总是保证环境效益;回收可能会产生意想不到的后果.
- 准确的水资源核算对于食品加工中有效的循环经济战略至关重要.
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