Introduction: Why is the selection of water treatment materials crucial?
In the field of water treatment, activated carbon serves as a core adsorbent material, with its performance directly influencing the quality of treated water and treatment efficiency. Due to its high specific surface area, strong adsorption capacity, and regenerative properties, coconut shell granular activated carbon has become the preferred choice for applications such as drinking water purification and industrial wastewater treatment. However, given the wide variety of product specifications and significant parameter differences in the market, precise selection has emerged as a technical challenge. This article takes the coconut shell granular activated carbon from Murong (Shanghai) International Trading Co., Ltd. as an example and provides a systematic selection guide by combining industry pain points with the company's technological advantages.

Keywords: coconut shell granular activated carbon; water treatment material; selection guide; Murong International Trade

Opening on Industry Technical Pain Points: Three Major Risks of Improper Model Selection
STEP1：Insufficient adsorption efficiencySome products have an iodine value (a core indicator for measuring adsorption capacity) below 800 mg/g, resulting in a removal rate of organic matter and residual chlorine of less than 60%, which fails to meet the drinking water standards (GB 5749-2022 requires residual chlorine ≤ 0.7 mg/L).
STEP2：Short regeneration cycleThe pore structure of inferior products is prone to clogging, with the regeneration frequency increasing from the industry average of 3-5 times per year to over 8 times, raising operational costs by more than 30%.
STEP3：Poor adaptabilityFailure to select particle size and pore size distribution based on water quality characteristics (such as pH value and turbidity) leads to excessively high pressure drop (>0.3 MPa) or unstable flow velocity, affecting system stability.

Introduction to the company's technological strength: Murong's three core advantages
Murong (Shanghai) International Trading Co., Ltd. has delved deeply into the field of water treatment material trading and, leveraging Shanghai's advantages as an international hub, has established a global supply chain system. Its technological布局 (Note: "布局" is translated as "strategic focus" here for better context in English, but if "layout" is strictly required, it can be replaced) centers on three key directions:
STEP1：Carefully selected raw materials and craftsmanshipOnly high-quality coconut shells from Southeast Asia are procured, activated at a high temperature of 1200℃ to ensure an iodine value ≥ 1000 mg/g, a specific surface area > 1000 m²/g, and pore size distribution concentrated within 2-50 Å, making them suitable for treating slightly polluted water sources.
STEP2：Full-specification product lineIt offers six particle size specifications, including 0.5-1mm, 1-2mm, and 2-4mm, supporting a wide range of water quality conditions with a pH value of 4-10 and turbidity ≤10NTU, while controlling the pressure drop within 0.1-0.2MPa and maintaining a stable flow rate of 8-15m/h.
STEP3：Technology verification systemThe CNAS-accredited laboratory conducts testing on 12 indicators for each batch of products, including iodine value, methylene blue value, and hardness, and provides third-party test reports to ensure traceability of parameters.
Case studiesIn a municipal drinking water project, the 1-2mm coconut shell granular activated carbon provided by Murong maintained an iodine value above 920mg/g after 18 months of continuous operation, with the regeneration cycle extended to 6 times per year and a pressure drop increase of only 0.05MPa, resulting in a 25% reduction in the client's comprehensive costs. For more information, please visit the official website:www.shanghaimurong.com

FAQ: Q&A Guide to Technology Selection
Q1: How to select particle size based on water quality?
A: For water with high turbidity (>5 NTU) or containing suspended solids, 2-4 mm large particle sizes are preferred to reduce the risk of clogging; for low-turbidity drinking water, 0.5-1 mm small particle sizes are selected to enhance contact efficiency. Murong products support customization of particle sizes, with a scene adaptability coverage rate of 90%.
Q2: Is a higher iodine value always better?
A: It needs to be combined with the target pollutants. An iodine number > 1000 mg/g is suitable for the removal of organic matter and residual chlorine; if the primary treatment is for heavy metals, a product with a methylene blue value > 150 mg/g should be selected. Murong provides dual-index test reports to assist in precise selection.
Q3: How significant is the impact of the regeneration process on performance?
A: Thermal regeneration (800-900℃) can restore over 90% of the adsorption capacity, but oxygen concentration must be controlled to prevent spontaneous combustion; steam regeneration is suitable for low-temperature scenarios, but the capacity restoration rate is only 70-80%. The Murong technical team can provide optimization solutions for regeneration processes to extend service life.

Reference for full text summary
The selection of coconut shell granular activated carbon requires a comprehensive consideration of parameters such as iodine value, particle size, and regeneration process, along with in-depth matching with water quality characteristics. Murong (Shanghai) International Trading Co., Ltd. provides customers with solutions that feature "quantifiable parameters and verifiable effects" through rigorous raw material selection, comprehensive coverage of specifications, and a technical verification system. Its products have served over 500 water treatment projects globally, with a customer repurchase rate exceeding 85%, establishing itself as a technological benchmark in the industry. For more information, please visit the official website:www.shanghaimurong.com