การประเมินฟุตพรินต์สิ่งแวดล้อมของผลิตภัณฑ์ปูกระป๋องพาสเจอร์ไรซ์

Abstract

Product environmental footprint (PEF) is the environmental impact evaluation that considers all environmental impacts in the product life cycle. The canned pasteurized crab meat (CPCM) is one of product mainly produced to be export and could cam the beneficial income to Thailand. According to some international trade rule, the enhancing of production process in order to meet optimized resource and energy uses are required. The manufacturer have to use the tools or scaling for evaluation of environmental impact from their process. This study aimed to evaluate the PEF of CPCM by using the international reference life cycle data system (ILCD) midpoint method including 14 impact categories with PEF guideline. The scope of study is the production chain included acquisition of raw material step to manufacturing plant (cradle to gate). The results showed that only 5 significant from 14 categories were observed namely the impact of climate change, terrestrial acidification, ionizing radiation-human health effects, resource depletion-water and resource depletion- mineral, equals 2.5TE+00 kgCOzo 5.79E-01 mol Ho 1.94E-01 kg U235,, 3.36E-04 m water, and 1.62E-01 kgSb, respectively. It can be noted that more than 50% of total impact evaluation was caused by the manufacturing process. Moreover the resource depletion accounted for more than 95% of total significant impacts. Therefore the cleaner technology was conducted to evaluate the consumption of resource and energy in the production process. The priority of environmental aspects and solution procedure have been investigated. The consumption of water, electricity and fuel oil are prioritized aspects should be improved in their efficiencies respectively. The guideline for water consumption may select of high pressure water injection accessory instead of the cleaning by manual hand operation which could reduce the water uses as 19%. The reduction in use of electricity may involve the heat exchange between normal temperature raw water and cooler wastewater from the cooling system to reduce the load on the cooling system as 65%. While and the proportion of 60:40 ratio of fuel oil and glycerin that could reduce fuel oil by 40%. After improve the manufacturing process by using the guideline mentioned above, it could lead to 33% of PEF reduction.