Capital Goods Production Significantly Impacts Social Life Cycle Assessment of Desalination Plants

Why It Matters

Designers and engineers must consider the entire life cycle of a product or system, including the often-hidden social impacts associated with the production of the equipment and infrastructure. Neglecting these phases can lead to an incomplete understanding of a project's true social footprint.

Key Finding

The production of the machinery and the construction of the desalination plant itself have substantial social consequences, particularly concerning worker safety, fair employment, and community impact, and these impacts can be significantly altered depending on how shared resources or benefits are accounted for.

Key Findings

• Equipment manufacturing and plant construction contributed significantly to various social impact subcategories and stakeholder categories.
• These phases had a notable impact on 'Health and safety' for workers, 'Discrimination', and 'Local employment', largely due to the construction and electrical sectors.
• The choice of multi-functionality approach (substitution, system expansion, economic allocation) influenced the overall social impact assessment results.

Research Evidence

Aim: To assess the contribution of capital goods production and plant operation to social impacts within a life cycle perspective for a circular desalination plant.

Method: Social Life Cycle Assessment (S-LCA) using the PSILCA database.

Procedure: The study analyzed a desalination plant in Lampedusa, Italy, evaluating 20 social impact subcategories across four stakeholder groups (Workers, Value chain actors, Society, Local community). Monetary data for equipment manufacturing, construction labor, operational working hours, energy, chemicals, and recovered materials were collected. Different multi-functionality approaches (substitution, system expansion, economic allocation) were applied to examine their influence on results.

Context: Industrial infrastructure, specifically a desalination plant with a circular economy approach.

Design Principle

Holistic Social Impact Assessment: Evaluate social impacts across the entire life cycle, from raw material extraction and capital goods production through operation, maintenance, and end-of-life.

How to Apply

When conducting a design project involving significant capital investment, use S-LCA tools to quantify and compare the social impacts of different equipment suppliers and construction methods, focusing on worker well-being and community engagement.

Limitations

The study's findings are specific to the case study desalination plant and the PSILCA database; results may vary for different technologies, geographical locations, or S-LCA databases. The choice of multi-functionality approach can influence outcomes.

Student Guide (IB Design Technology)

Simple Explanation: When you build something big like a factory or a power plant, the making of the machines and the building work itself causes social problems (like safety issues for workers or job impacts in the area), not just the running of the plant later on.

Why This Matters: This research shows that the social impact of a design isn't just about how users interact with it, but also about the people involved in making and building it. This is crucial for creating truly responsible designs.

Critical Thinking: How might the 'circular economy' aspect of the desalination plant in the study influence the social impacts of capital goods production, and are these influences positive or negative?

IA-Ready Paragraph: The production of capital goods, encompassing the manufacturing of equipment and construction of infrastructure, significantly contributes to the social life cycle impacts of a design. Research indicates that these phases can heavily influence metrics such as worker health and safety, local employment, and discrimination, underscoring the need for designers to extend their social impact assessments beyond the operational stage to encompass the entire supply chain and construction process.

Project Tips

• When selecting materials or components, research the social impact of their production, not just their environmental footprint.
• Consider the labor practices and safety records of your suppliers and construction partners as part of your design evaluation.

How to Use in IA

• Reference this study when discussing the social impacts of your design's manufacturing or construction phases, especially if your design involves significant capital equipment.

Examiner Tips

• Demonstrate an understanding that social impacts extend beyond the end-user experience to include the entire supply chain and production process.

Independent Variable: ["Inclusion/Exclusion of Capital Goods Production in S-LCA","Multi-functionality approach (Substitution, System Expansion, Economic Allocation)"]

Dependent Variable: ["Social impact subcategories (e.g., Health and safety, Discrimination, Local employment)","Contribution to stakeholder categories (Workers, Value chain actors, Society, Local community)"]

Controlled Variables: ["Functional unit (1 m3 industrial water)","Case study: Desalination plant in Lampedusa, Italy","Use of PSILCA database"]

Strengths

• Comprehensive S-LCA methodology applied.
• Inclusion of capital goods production, often a neglected area.
• Exploration of different multi-functionality approaches.

Critical Questions

• To what extent can the social impacts of capital goods production be reliably quantified and compared across different suppliers or regions?
• How can designers proactively mitigate the identified social risks in the supply chain and construction phases?

Extended Essay Application

• Investigate the social impacts of producing a key component for a proposed design solution, considering the manufacturing processes and labor conditions involved.
• Compare the social life cycle impacts of two different design concepts that rely on significantly different types of capital equipment.

Source

Contribution of capital goods production to social impacts: A life cycle perspective for a circular desalination plant · Sustainable Production and Consumption · 2023 · 10.1016/j.spc.2023.12.029