**PPT Design Requirements: Academic Research Background Page (16:9, White Background)** **Core Objective:** To highlight the limitations of traditional chemical methods and the innovative value of the biological method in this project through visual contrast and logical guidance, strengthening the necessity and breakthrough nature of academic research. --- **Design Suggestions and Content Framework:** 1. **Overall Layout and Visual Flow:** - Adopt a **left-right comparison layout**, with the left side presenting the problems of traditional chemical methods and the right side showcasing the solutions of the biological method in this project, guiding the visual flow with arrows or technological streamlines in the middle. - Place the title in the center at the top: **"Rare Earth Leaching Technology: A Paradigm Shift from Chemical to Biological Methods"** (font should be dignified, with a dark blue primary color). 2. **Left Side (Traditional Chemical Method Area):** - **Color Scheme:** Gray-black and dark red tones, symbolizing pollution and high energy consumption. - **Iconic Representation of Problems:** - 🔄 **"Full-Area Leaching"**: Accompanied by a schematic diagram of full-range coverage (such as a large area of color blocks covering a rare earth mine map). - ⚠️ **"Ammonia-Nitrogen Pollution"**: Use a warning symbol + visual of sewage diffusion. - ⚡ **"High Energy Consumption"**: Lightning icon + rising curve arrow. - 🧪 **"Complex Ionic Phase of Leachate"**: Disordered chemical molecular structure diagram. - **Bottom Summary Label:** > **"Chemical Method Dilemma: High Environmental Cost, Poor Selectivity, Complex Subsequent Processes"** 3. **Right Side (Biological Method Area of this Project):** - **Color Scheme:** Green and light blue tones, symbolizing environmental protection and precision. - **Iconic Representation of Innovation Points:** - 🎯 **"Selective Enhancement"**: Accompanied by a target icon + schematic diagram focusing on medium and heavy rare earths. - 🌿 **"Low Ammonium/Magnesium Salts"**: Green leaf icon + low chemical input data. - 🔗 **"Specific Biological Adsorption"**: DNA/protein structure icon + microscopic schematic diagram of adsorption material. - **Bottom Summary Label:** > **"Advantages of Biological Method: Green and Precise, Targeted Enhancement, High Industrial Adaptability"** 4. **Central Connection and Transition:** - Use a striking arrow pointing from the left to the right, labeled: **"Inevitable Technological Upgrade: From Extensive Chemical Leaching → Precise Biological Enhancement"** - A small flowchart can be added: **Chemical Method (Problem) → Demand-Oriented → Biological Method (Innovation)** 5. **Bottom Guidance for Research Content (Paving the Way for the Next Page):** - Add a line of suggestive text at the very bottom of the page (
PPT Design Requirements: Academic Research Background Page (...