Why Nut Shell Activated Carbon is Revolutionizing Industrial Water Purification Systems?

1. Introduction

In modern **industrial water treatment systems**, **shell-based activated carbon** (from coconut, walnut, or peach 

shells) has become the **preferred choice** for removing organic pollutants, heavy metals, and discoloration. With 

its **high adsorption capacity** and **eco-friendly properties**, it outperforms traditional coal-based carbon in many 

applications.  

This guide covers:  

✔ **Why shell carbon works better for water treatment**  

✔ **Key applications in industrial purification**  

✔ **How to select the optimal carbon for your system**  

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2. Advantages of Shell Activated Carbon in Water Treatment 

✅ Superior Adsorption Performance  

- **Higher micropore volume** → Better removal of **COD, BOD, and organic pollutants**  

- **Iodine value 500-900 mg/g** vs 800-900 mg/g for coal carbon  

✅ Excellent Physical Propertie  

- **High hardness (≥95%)** → Less breakage in continuous-flow systems  

- **Low ash content (<5%)** → Minimizes leaching of impurities  

✅ Cost-Effective Operation 

- **Longer service life** → 20-30% more regeneration cycles than coal carbon  

- **Lower pressure drop** → Reduces energy costs in filtration systems  

✅ Environmentally Friendly  

- **Made from renewable resources** (coconut/walnut shells)  

- **Biodegradable** and non-toxic  

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3. Key Applications in Water Treatment

① Industrial Wastewater Treatment

- Removes **phenols, dyes, and pesticides** from chemical plant effluent  

- **Case Study:** A textile factory reduced **COD by 92%** using our shell carbon  

② Drinking Water Purification**  

- Eliminates **chlorine, THMs, and micropollutants**  

- Meets **WHO and EPA standards** for potable water  

③ Heavy Metal Removal**  

- Effective for **lead, mercury, cadmium, and arsenic** adsorption  

- **pH range 4-10** for optimal performance  

④ Aquaculture & Fisheries  

- Maintains water clarity by removing **ammonia and organic waste**  

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4. Technical Specifications  

item		First Grade	Second Grade
Particle Size 6-16 Mesh  10-24Mesh	%	≥95	≥95
iodine Sorption Value	mg/g	≥1000	≥900
Intensity	%	≥95	≥95
Moisture	%	≤10	≤10
Ash	%	≤3	≤3
Filling Specific	g/cm³	0.4-0.45	0.45-0.5
PH		6-9	6-9

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5. How to Select the Right Shell Carbon?  

⚠️ 3 Common Mistakes to Avoid

1. **Choosing wrong particle size** → Too fine = high pressure drop; too coarse = poor adsorption  

2. **Ignoring reactivation potential** → Increases long-term costs  

3. **Overlooking certifications** → NSF/ANSI 61 for drinking water applications  

✅ Selection Guide**  

✔ **For wastewater:** 8×30 mesh granular carbon  

✔ **For drinking water:** 20×50 mesh with acid washing  

✔ **For heavy metals:** Sulfur-impregnated shell carbon  

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6. System Design & Maintenance Tips 

- **Contact time:** 15-30 minutes for optimal adsorption  

- **Backwash frequency:** Every 2-4 weeks depending on turbidity  

- **Reactivation:** Thermal regeneration at 700-900°C restores 85-90% activity  

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7. Why Choose Our Shell Activated Carbon?* 

Tags: Nut Shell activated carbon for water treatment, Industrial water purification carbon, Wastewater treatment activated carbon