GROUP 3 -CLEANER PRODUCTION and LCA-2.pptx

Cleaner Production presentation will explore an interesting literature about PLCs and other programming languages

1. Lecturer : Prof Eng. D.Zimwara ;Eng. TC Gwara Environmental Conscious Manufacturing GROUP 3-CLEANER PRODUCTION and LCA

2. Members Student names Student numbers Same Vera N02017930W Adolf Sigauke N20200260W Kudzanai Nkala N02017235M Tanatswa Mugabe N02016836C Davis Maupa N02017860W Denzel Ndebele N02017793X Paul Chigwida N02019303E Sailas Chikweya N02018702M Sithembinkosi Gono N02014740J Rufaro Mbara N02013927X Mieangssue Magwaro N02016924Y Cynthia Madamombe N02018642N Prince Kanukai N02015702I Marvelous Matare N0199582G Trymore kanjira N02017700F

3. I ntroduction E nvironmental sustainability is vital, driving industries to adopt innovative methods that minimize ecological impacts while ensuring economic feasibility. Cleaner Production (CP) and Life Cycle Assessment (LCA) are essential in this effort. CP seeks to reduce waste and optimize resource use. LCA evaluates a product's environmental impacts

4. Cleaner production Cleaner Production refers to minimizing resource use and avoiding the creation of pollutants, rather than trying to manage pollutants after they have been created.  It involves rethinking products, processes and services to move towards sustainable development continuous application of an integrated, preventative environmental strategy to processes, products and services to increase eco-efficiency and reduce risks to humans and the environment.”

5. Overview of Cleaner Production

6. Elements of Cleaner Production 1. Precautionary Approach: P otential polluters must prove that substances or activities do not harm health or ecosystems before introduction (proactive measure). 2. Preventive Approach: Stopping pollution at the source by: designing processes that minimize waste and resource consumption, promoting cleaner production techniques and upstream solutions rather than end-of-pipe treatments . 3. Democratic Control: Ensures that workers, consumers, and communities have access to information and participate in decision-making, fostering transparency and accountability for sustainable practices. 4 . Integrated Approach: Involves using life-cycle analyses (LCA) to assess environmental impacts from raw material extraction to disposal, identifying improvement opportunities across all production stages.

7. Benefits of Cleaner Production

8. Techniques used in Cleaner Production 1) Source Reduction T he practice of reducing the amount and toxicity of waste generated during production processes P roactive approach focuses on preventing waste before it is created, rather than managing it after the fact Key Ways of Source Reduction a) Process Modification : Improving operational procedures to enhance efficiency and reduce waste generation by: Technologies like Digital Twins optimize processes, while 3D printing significantly cuts material waste. IoT sensors facilitate real-time monitoring. Companies like 3M and Nestlé showcase effective resource optimization, leading to reduced water and energy use

9. Techniques used in Cleaner Production Key Ways of Source Reduction b ) Input Substitution : Replacing hazardous materials with less toxic or renewable alternatives to decrease waste toxicity. Transitioning to safer materials, such as biodegradable solvents and water-based paints, supports a healthier environment. Digital tools like Green Screen aid in assessing hazards. Apple exemplifies this by removing harmful substances from its products

10. Techniques used in Cleaner Production..Cont Key Ways of Source Reduction c) Cleaner Operation Implementing better housekeeping practices(5s) and maintenance to prevent waste creation . d) Product Design Designing products with fewer environmental impacts in mind, which can lead to reduced waste during production and disposal. e) Energy Efficiency Improvements : Upgrading to energy-efficient equipment, integrating renewable energy, optimizing processes with automation, and implementing heat recovery systems. Coca-Cola exemplifies this by reducing water usage by 20% through closed-loop systems

11. Techniques used in Cleaner Production. Cont Key Ways of Source Reduction f ) Waste Minimisation Effective waste prevention focuses on source reduction rather than disposal. Key strategies include: Lean Manufacturing (like Toyota's Just-in-Time), promoting a Circular Economy for recyclable products, and Byproduct Synergy, where one industry's waste serves as another's raw material, such as turning coffee grounds into biofuels.

12. Techniques used in Cleaner Production..Cont 2. Waste Recycling a) On-site Reuse/Recovery Soap stock obtained from the separation of crude oil in the refinery is used in making the soap making process Hexane recovery in Crude oil extraction b) Creation of Useful By-Products U se of spent grain from sorghum traditional beer production by Delta Beverages as stock feed which sold directly to local farmers at the production plants .

13. Techniques used in Cleaner Production. Cont 3. Product Reformulation or Modification M inimizing the environmental impact of products throughout their lifecycle. This approach involves altering product characteristics to reduce waste, enhance efficiency, and lessen toxicity

14. Overview of Product Reformulation Key Strategies Reducing Toxicity: Reformulating products to replace harmful substances with safer alternatives. Enhancing Resource Efficiency: Modifying products to use fewer resources during production and consumption. Improving End-of-Life Management: Designing products for easier recycling or disposal, thus reducing landfill waste . Objectives 1. Environmental Impact Reduction: Lower emissions and waste generation during production and use. 2. Cost Savings: Decreased material costs through more efficient use of resources. 3. Market Competitiveness: Enhanced product appeal due to improved sustainability credentials .

15. CASE STUDY Dairibord, one of Zimbabwe's leading dairy companies, undertook product reformulation to address both market demands and environmental concerns. Dairibord has reformulated all its milk products to reduce sugar content, catering to health-conscious consumers while maintaining taste that is Chimombe and Steri milks. The company has also modified its yoghurt products, focusing on lowering sugar levels and enhancing nutritional value to meet changing consumer preferences. It has reworked its non-alcoholic beverages, including the Cascade brand, to reduce added sugars in response to new regulations regarding sugar content in beverages.

16. Life Cycle Assessment I s a systematic methodology used to evaluate the environmental impacts of a product throughout its entire life cycle, from raw material extraction to disposal. P rovides a comprehensive view of a product's cumulative ecological effects, helping to identify "hotspots" of significant environmental impact. LCA is essential for combating "greenwashing," enabling businesses to maintain transparency and accountability in their sustainability claims and practices. This approach fosters genuine sustainable development.

17. Phases of Life Cycle Analysis The Life Cycle Assessment (LCA) process consists of four key stages: Goal and Scope Definition Establishes the purpose of the study, outlines objectives (e.g., eco-design, regulatory compliance), and defines system boundaries (cradle-to-grave or cradle-to-gate). Utilizes ISO standards and the EU Product Environmental Footprint (PEF). 2. Life Cycle Inventory (LCI ) Involves systematic data collection on energy usage, material inputs, and emissions using Primary Data (direct measurements) and Secondary Data (databases like Ecoinvent , USLCI). Tools include software such as SimaPro and OpenLCA .

18. Phases of Life Cycle Analysis 3 . Life Cycle Impact Assessment ( LCIA) Transforms inventory data into measurable environmental impacts by selecting impact categories (both mandatory and optional). For example, producing 1 kg of beef emits around 60 kg of CO₂ equivalent and consumes 15,000 liters of water. 4. Interpretation Analyzes results to identify environmental hotspots and conducts sensitivity and uncertainty analyses to assess data reliability. Concludes with actionable recommendations for sustainability improvements and employs visual tools (e.g., Sankey diagrams) for effective communication. Adherence to ISO reporting guidelines is essential for transparency.

19. Benefits of LCA

20. The Synergy Between Cleaner Production and LCA The synergy between Cleaner Production (CP) and Life Cycle Assessment (LCA) enhances sustainable development by combining their strengths. CP focuses on preventing pollution and reducing waste at the source, while LCA evaluates environmental impacts across a product's entire life cycle. Together, they enable organizations to identify sustainable practices and make informed decisions that balance economic, environmental, and social factors.

21. The Synergy Between Cleaner Production and LCA A practical example from the wood industry illustrates how integrating CP and LCA can improve sustainability and reduce resource consumption. LCA also helps assess the effectiveness of CP initiatives, ensuring that improvements do not lead to negative consequences elsewhere. This combined approach fosters innovation and contributes significantly to long-term sustainability goals, particularly in industries like textiles.

22. The End Thank You