e-nvironmentalist_should_know-biotreatment-of-wastewater

Anaerobic & Anoxic Biotreatment of Waste 🌱

An interactive, bilingual (English/Chinese) educational presentation exploring how microorganisms transform high-strength industrial wastewater into recoverable resources.

Live Demo: View Presentation

📋 Overview

This project presents a comprehensive journey through modern wastewater treatment technologies, following the story of “Xiao Nong” (小浓)—a character representing high-concentration brewery wastewater. The presentation covers the evolution from traditional biogas pits to cutting-edge Anaerobic Membrane Bioreactors (AnMBR) and Anammox processes.

Key Concepts Explored

• Anaerobic Treatment: COD removal and biogas recovery (Route A)
• Anoxic Treatment: Nitrogen and phosphorus removal (Route B)
• Resource Recovery: Transforming waste from liability to asset

🗺️ Treatment Routes Covered

Route A — COD & Energy Recovery

| Technology | Innovation | HRT | Key Feature | |————|———–|—–|————-| | Biogas Pit | Basic anaerobic digestion | 20-30 days | Concept proven | | CSTR | Mechanical mixing | 20-30 days | Uniform environment | | UASB | Granular sludge + 3-phase separator | 6-12 hours | 40× speed improvement | | EGSB | Expanded granular bed + recycle | 2-6 hours | High-strength capable | | EGSB + AnMBR | Membrane filtration | <2 hours | Ultimate biomass retention |

Route B — Nutrient Removal

| Process | Mechanism | Carbon Required? | Key Advantage | |———|———–|—————-|—————| | A²/O | Anaerobic → Anoxic → Oxic | Yes | Simultaneous C, N, P removal | | Anammox | NH₄⁺ + NO₂⁻ → N₂ | No | ~60% energy savings, ~90% less sludge |

✨ Interactive Features

• 🧭 Mindmap Navigation: Interactive SVG mindmap showing treatment pathways
• 🎯 Drag & Drop Quizzes:
  • Anaerobic vs Anoxic classification quiz
  • A²/O zone sequencing challenge
  • CSTR mechanism identification
• 🧪 Animated SVG Diagrams:
  • 4-stage anaerobic digestion (Hydrolysis → Acidogenesis → Acetogenesis → Methanogenesis)
  • UASB three-phase separation with animated bubbles and sludge settling
  • EGSB expanded bed visualization
  • AnMBR membrane filtration with particle rejection animations
• 📖 Dynamic Glossary: Terms appear in the sidebar as you progress through slides
• ⌨️ Keyboard Navigation: Use arrow keys to navigate between slides

🚀 Usage

Method 1: Direct Open

Simply open index.html in any modern web browser (Chrome, Firefox, Safari, Edge).

```bash

Clone the repository

git clone https://github.com/c72k96x7dp-cyber/e-nvironmentalist_should_know-biotreatment-of-wastewater.git

Navigate to directory

cd e-nvironmentalist_should_know-biotreatment-of-wastewater

Open in browser (macOS)

open index.html

Open in browser (Linux)

xdg-open index.html