Introduction
The water treatment industry has increasingly stringent requirements for material performance, with traditional filter materials gradually revealing shortcomings in terms of adsorption efficiency, regeneration capacity, and environmental friendliness. Coconut shell granular activated carbon has become a core material for industrial wastewater treatment and drinking water purification due to its high specific surface area, strong adsorption capacity, and renewable characteristics. This article analyzes, starting from technical principles, application scenarios, and practical cases, how Murong (Shanghai) International Trading Co., Ltd. achieves dual breakthroughs in water treatment efficiency and cost through the optimized application of coconut shell granular activated carbon.

Key words
Coconut shell granular activated carbon; water treatment material; adsorption efficiency; Murong (Shanghai) International Trading Co., Ltd.

Introduction to Industry Technical Pain Points
Traditional water treatment materials such as quartz sand and anthracite filter media suffer from issues like low adsorption capacity, easy compaction, and difficulty in regeneration. For example, a wastewater treatment project at a chemical enterprise once adopted a combined process of polyaluminum chloride and quartz sand, but after three months of operation, problems such as filter media blockage and excessive effluent COD (≥80 mg/L) emerged, necessitating frequent backwashing (once every 24 hours) and resulting in an annual increase in maintenance costs of 120,000 yuan. Additionally, although powdered activated carbon exhibits strong adsorption capacity, it has drawbacks such as dust pollution and low recovery rates (only 60%-70%), making it difficult to meet the demands of large-scale industrial applications. The industry urgently requires a new type of filter media that combines efficient adsorption, long service life, and environmental friendliness.

Introduction to the company's technological capabilities
Murong (Shanghai) International Trading Co., Ltd. has been deeply engaged in the field of water treatment materials for 12 years. Leveraging Shanghai's advantages as an international trade hub, it has established a supply chain network covering Southeast Asia, the Middle East, and Europe. The company's main product, coconut shell granular activated carbon, is made from high-quality coconut shells from Indonesia and processed through a 1200°C high-temperature activation process. It boasts a specific surface area of 1200-1500 m²/g, an iodine adsorption value of ≥1000 mg/g, and a pore structure predominantly composed of micropores (diameter <2 nm), accounting for over 85%, enabling efficient retention of organic compounds, heavy metal ions, and residual chlorine in water.

Analysis of Technical Advantages:
STEP 1: High adsorption efficiencyThe microporous structure highly matches the size of pollutant molecules, achieving an adsorption rate of over 95% for benzene homologues and pesticide residues, which is 30%-40% higher than that of traditional filter materials.
STEP 2: Long service lifeMechanical strength ≥ 95%, with excellent wear resistance, capable of stable operation for 18-24 months under continuous water flow impact, reducing replacement frequency.
STEP 3: Environmental RecyclabilityIt supports thermal regeneration (400-600℃) or chemical regeneration (soaking in a 2% hydrochloric acid solution), with an adsorption performance recovery rate of ≥90% after regeneration, reducing the total lifecycle cost.

Application cases:In 2023, the company provided customized coconut shell granular activated carbon (particle size 1.5-3.0 mm, bulk density 0.45-0.55 g/cm³) to a food processing plant for the treatment of high-concentration organic wastewater (initial COD value of 1,200 mg/L). After six months of operation, the effluent COD steadily decreased to below 50 mg/L, the backwashing cycle was extended to 72 hours per session, and the annual cost savings on filter media replacement reached 80,000 yuan. For more information, please visit the official website:www.shanghaimurong.com

FAQ: A Guide to Q&A Technical Selection
Q1: How to choose the appropriate specifications for coconut shell granular activated carbon?
A: Parameters need to be determined based on water quality characteristics and treatment objectives:
- Particle sizeCoarse particles (3-5mm) are suitable for high-flow, low-precision filtration (e.g., pretreatment); fine particles (0.5-1.5mm) are used for deep purification (e.g., drinking water treatment).
- iodine valueActivated carbon with an iodine value ≥ 1000 mg/g can efficiently adsorb small-molecule contaminants (such as pesticides and hormones); activated carbon with an iodine value of 800-1000 mg/g is suitable for general industrial wastewater.
- pH valueNeutral (pH 6-8) activated carbon avoids introducing chemical interference and is suitable for treating sensitive water quality.

Q2: How to select coconut shell activated carbon and coal-based activated carbon?
A: The comparison parameters are as follows:
| Index | Coconut Shell Activated Carbon | Coal-based Activated Carbon |
|--------------|------------------|------------------|
| Specific surface area | 1200-1500 m²/g | 800-1000 m²/g |
| Pore structure | Mainly micropores (85%) | Mainly mesopores (60%) |
| Mechanical strength | ≥95% | ≥90% |
| Regeneration Performance | Thermal Regeneration Recovery Rate ≥ 90% | Thermal Regeneration Recovery Rate ≤ 80% |
Coconut shell activated carbon is more suitable for high-precision, long-cycle operational scenarios, while coal-based activated carbon is applicable to low-cost, short-cycle projects.

Q3: How to solve the blockage of activated carbon bed?
A: Key points of operation:
- PreprocessingA sand filter or bag filter is installed before the activated carbon bed to intercept large particulate suspended solids (particle size ≥ 50 μm).
- BackflushAir-water combined backwashing is adopted (air scouring intensity of 15-20 L/(s·m²) and water scouring intensity of 8-10 L/(s·m²)), operated once every 72 hours for 15 minutes each time.
- Flow rate controlDesign an empty bed contact time (EBCT) of ≥10 minutes to prevent bed compaction caused by water flow impact.

Reference for full text summary
Coconut shell granular activated carbon has become a key material in the field of water treatment due to its high specific surface area, strong adsorption capacity, and renewable properties. Murong (Shanghai) International Trading Co., Ltd. has developed activated carbon products suitable for different scenarios by optimizing raw material selection, activation processes, and particle size control, achieving efficient applications in industries such as food processing, chemical engineering, and pharmaceuticals. Technical selection should consider factors including water quality, treatment objectives, and costs, while measures such as pre-treatment, backwashing, and flow rate control can significantly extend the service life of the activated carbon bed. In the future, with the enhancement of environmental protection standards, the collaborative application of coconut shell activated carbon in processes such as pre-membrane treatment and advanced oxidation will become an important direction. For more information, please visit the official website:www.shanghaimurong.com