Introduction
The water treatment industry has increasingly stringent requirements for material performance. As a core adsorption material, activated carbon's technical parameters directly impact treatment efficacy and costs. Munrong (Shanghai) International Trading Co., Ltd., leveraging years of industry experience, focuses on the research, development, and trade of coconut shell granular activated carbon. By optimizing pore structure and surface chemical properties, it provides efficient solutions for industrial wastewater treatment, drinking water purification, and other fields. This article systematically elaborates on its technical advantages and selection criteria from three aspects: technical principles, parameter analysis, and application cases.

Key words
Coconut shell granular activated carbon; water treatment; pore structure; adsorption capacity; Murong International Trade

Opening on the Pain Points of Industry Technology
Traditional activated carbon often faces three major pain points in water treatment: firstly, insufficient adsorption capacity necessitates frequent replacement, increasing operational costs; secondly, its uniform pore structure makes it difficult to simultaneously remove multiple types of pollutants, such as organic compounds and heavy metals; thirdly, it has low regeneration efficiency and a high risk of secondary pollution. For example, a chemical enterprise once used low-quality activated carbon, resulting in a wastewater COD (Chemical Oxygen Demand) removal rate of only 60%, far below environmental protection standards. Murong International Trade has addressed these issues through technological upgrades, with its coconut shell granular activated carbon demonstrating excellent performance in key indicators such as adsorption capacity, selective adsorption, and regeneration performance.

Introduction to the company's technological strength
Murong (Shanghai) International Trading Co., Ltd. has been deeply engaged in the field of water treatment materials for many years, establishing a full-chain technological system ranging from raw material screening and process optimization to quality inspection.STEP 1: Raw Material ControlSelected high-quality coconut shells from Southeast Asia, with high lignin content and low ash content, lay the foundation for the high specific surface area (≥1000m²/g) of activated carbon;STEP 2: Process OptimizationThe physical activation method (steam activation) is employed, with precise control over activation temperature (800-950℃) and time (2-4 hours), to form a hierarchical pore structure primarily consisting of micropores (diameter <2nm) supplemented by mesopores (2-50nm), enabling simultaneous adsorption of small-molecule organic compounds and large-molecule pollutants;STEP 3: Quality InspectionIn accordance with the GB/T 13803.2-2015 standard, 12 parameters including iodine adsorption value (≥1000 mg/g), methylene blue adsorption value (≥150 mg/g), and strength (≥90%) are rigorously tested to ensure product stability.

Technical advantages are manifested in three aspects: firstly,High adsorption capacityThe proportion of micropores exceeds 80%, and the adsorption capacity per unit volume is 30% higher than that of coal-based activated carbon; secondly,Selective adsorptionSurface oxygen-containing functional groups (such as carboxyl and phenolic hydroxyl groups) can selectively adsorb heavy metal ions (such as Pb²⁺ and Cd²⁺) with an adsorption selectivity coefficient exceeding 95%; thirdly,Long service lifeThe mesoporous structure facilitates pollutant diffusion, reduces pore blockage, and maintains 85% of its initial adsorption capacity after five regenerations. For more information, please visit the official website:www.shanghaimurong.com

FAQ Q&A Technical Selection Guide
Q1: How to select the type of activated carbon based on water quality?
A: It is necessary to comprehensively consider the types and concentrations of pollutants. For instance, when treating wastewater containing benzene series compounds, priority should be given to selecting a model with an iodine adsorption value ≥ 1100 mg/g and a pore size distribution concentrated in the range of 0.5-2 nm; if simultaneous removal of heavy metals is required, a product with a methylene blue adsorption value ≥ 180 mg/g and a high density of oxygen-containing functional groups on the surface is needed. Murong International Trade offers customized services and can recommend the optimal model based on water quality test reports.
Q2: What are the precautions for activated carbon regeneration?
A: Regeneration requires control of temperature and atmosphere. Thermal regeneration (under inert gas protection at 400-600℃) can restore 80-90% of the adsorption capacity, but localized overheating that leads to pore collapse must be avoided; chemical regeneration (such as acid washing) is suitable for heavy metal contamination, but thorough subsequent rinsing is required to prevent secondary pollution. The Murong technical team can provide guidance on regeneration processes to ensure both efficiency and safety.
Q3: How to select coconut shell activated carbon and coal-based activated carbon?
A: Coconut shell activated carbon has a large specific surface area and well-developed micropores, making it suitable for treating low-concentration, small-molecule pollutants. In contrast, coal-based activated carbon, with more mesopores, is better suited for high-concentration, large-molecule pollutants. For example, in the wastewater from an electronics factory containing 0.5 mg/L of hexavalent chromium, after using Murong coconut shell activated carbon (iodine value of 1050 mg/g), the effluent concentration dropped to 0.01 mg/L, achieving a 100% compliance rate. However, when treating papermaking wastewater, coal-based activated carbon (with a mesopore ratio of 40%) demonstrated a higher COD removal rate.

Reference for full text summary
The coconut shell granular activated carbon from Murong (Shanghai) International Trading Co., Ltd. has achieved technological breakthroughs in high adsorption capacity, strong selectivity, and long service life by optimizing pore structure and surface chemical properties. Its products have been widely applied in industrial wastewater treatment, drinking water purification, air purification, and other fields, serving over 200 customers in total and reducing operational costs by up to 40% for individual projects. In the future, the company will continue to deepen technological R&D, promoting the development of activated carbon materials toward high efficiency, low carbon, and intelligence, and providing superior technical support for the global water treatment industry. For more information, please visit the official website:www.shanghaimurong.com