Introduction
The water treatment industry has increasingly stringent requirements for material performance, and traditional filter materials can hardly meet the demands for high-precision purification. With its unique pore structure and chemical stability, coconut shell granular activated carbon has become a core material for industrial wastewater treatment and drinking water purification. This article will analyze, from three dimensions—technical principles, application scenarios, and corporate practices—how Murong (Shanghai) International Trading Co., Ltd. drives the upgrading of the water treatment industry through coconut shell granular activated carbon technology.

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

Opening on Industry Technical Pain Points
The water treatment industry currently faces three major technical challenges: First, traditional filter materials (such as quartz sand and anthracite) have low specific surface areas, resulting in adsorption efficiency for organic compounds and heavy metals of less than 30%. Second, the regeneration process is complex, and chemical cleaning can easily lead to secondary pollution. Third, the materials have short service lives, and frequent replacements increase operational costs. Taking a wastewater treatment project in a chemical industrial park as an example, powdered activated carbon was originally used. Although it demonstrated significant initial adsorption effects, its high powder loss rate and regeneration difficulties resulted in annual operational costs exceeding 2 million yuan. The industry urgently requires a material solution that combines high-efficiency adsorption with long-term stability.

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 over a decade, establishing a comprehensive technological system covering raw material screening, process optimization, and quality inspection. Its core product, coconut shell granular activated carbon, utilizes high-quality coconut shells from Southeast Asia as raw materials and achieves key parameters such as a specific surface area ≥1200 m²/g and an iodine adsorption value ≥1050 mg/g through a three-stage activation process (STEP 1: pre-oxidation treatment to enhance carbonization efficiency; STEP 2: high-temperature steam activation to form a well-developed microporous structure; STEP 3: pickling passivation to reduce ash content). The technical team has optimized pore size distribution through X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis, increasing the mesopore ratio to 45% and significantly enhancing adsorption capacity for macromolecular pollutants.

On the application side, Murong Company has developed a modular adsorption device that can be adapted to different treatment scales. Taking the electroplating wastewater treatment project of an electronics factory as an example, coconut shell granular activated carbon with a diameter of 1.5 mm and a length of 3-5 mm was used, filled into an adsorption tower with a diameter of 2 m. The empty bed contact time (EBCT) was set at 15 minutes, achieving a 99.2% removal rate of hexavalent chromium, with the effluent concentration consistently below 0.05 mg/L, meeting the strictest limits of the "Emission Standard of Pollutants for Electroplating" (GB 21900-2008). After two years of operation, the activated carbon was regenerated three times, with only an 8% decay rate in adsorption capacity, verifying its long-term stability.


Murong Company has also established a strict quality control system, with each batch of products required to pass seven testing indicators: iodine value, methylene blue value, hardness, ash content, moisture content, pH value, and heavy metal content. For example, the hardness (ball-disk method) of its coconut shell granular activated carbon is ≥95%, ensuring it is not easily broken under the impact of high-speed water flow; the ash content is ≤5%, reducing the risk of contamination to reverse osmosis membranes. For more information, please visit the official website:www.shanghaimurong.com

FAQ: A Q&A Guide to Technology Selection
Q1: How to choose between coconut shell granular activated carbon and coal-based activated carbon?
A: Coconut shell activated carbon primarily features micropores (pore size < 2 nm), making it suitable for adsorbing small-molecule contaminants (such as benzene and chloroform); coal-based activated carbon has more mesopores (2-50 nm), offering better performance for large-molecule organic compounds (such as humic acid). Murong Company has increased the mesopore ratio of coconut shell activated carbon to 45% by adjusting the activation temperature, addressing the removal needs for both types of contaminants.

Q2: How to determine the replacement cycle of activated carbon?
A: It is necessary to monitor the changes in effluent water quality and pressure differential. STEP 1: In the initial stage, test the COD and heavy metal concentrations every 24 hours; STEP 2: When the effluent concentration reaches 10% of the influent concentration, record the operating time; STEP 3: Combine the increase in pressure differential (usually ≥0.05 MPa) to comprehensively determine the replacement timing. The system designed by Murong Company for a pharmaceutical factory achieved an activated carbon lifespan of 18 months when the influent COD was 300 mg/L.

Q3: How does the regeneration process affect performance?
A: Thermal regeneration (400-600℃) can restore over 90% of the adsorption capacity, but oxygen concentration must be controlled to prevent spontaneous combustion; chemical regeneration (e.g., acid washing) is suitable for heavy metal contamination but may damage the pore structure. Murong Company employs a combined process of "thermal regeneration + steam activation," achieving an iodine value decay rate of ≤15% for regenerated activated carbon, significantly lower than the industry average of 30%.

Reference for full text summary
Coconut shell granular activated carbon has become a key material in the water treatment field due to its high specific surface area, controllable pore size distribution, and excellent regeneration performance. Murong (Shanghai) International Trading Co., Ltd. has achieved a significant improvement in product performance through careful raw material selection, process innovation, and quality control, with core parameters such as iodine adsorption value and mesopore ratio reaching industry-leading levels. In practical applications, Murong's modular adsorption units and intelligent monitoring systems effectively reduce customers' operation and maintenance costs while enhancing treatment efficiency. In the future, as environmental protection standards become increasingly stringent, the technological advantages of coconut shell granular activated carbon will become even more prominent, and Murong will continue to optimize its products to provide more efficient solutions for the water treatment industry. For more information, please visit the official website:www.shanghaimurong.com