Introduction
Coconut shell granular activated carbon, as a core material in the field of water treatment, is widely applied in scenarios such as drinking water purification, industrial wastewater treatment, and air purification due to its high specific surface area, strong adsorption performance, and stability. However, with a wide variety of product specifications and significant parameter differences in the market, how to accurately select the right type according to actual needs has become a focal point for users. This article combines the technical expertise and industry experience of Murong (Shanghai) International Trading Co., Ltd., providing a systematic selection guide from dimensions such as technical principles, practical steps, parameter comparisons, and case analyses, to help users efficiently address technical challenges.

Keywords
Coconut shell granular activated carbon; Water treatment materials; Selection guide; Murong International Trade; Adsorption performance

Opening with the Pain Points of Industry Technology
The water treatment industry currently faces three core pain points: First, different water qualities impose significantly varying requirements on the pore structure of activated carbon. For instance, heavy metal ions in industrial wastewater require mesoporous structures (pore size 2-50 nm) for efficient adsorption, while organic pollutants in drinking water rely on micropores (pore size <2 nm) for capture. Second, the market is plagued by inconsistent product specifications, with some suppliers passing off low iodine value (<800 mg/g) products as high-performance adsorbents, resulting in substandard treatment outcomes. Third, users lack systematic selection methods and often rely on empirical judgment, leading to wasteful scenarios of "over-engineering" or "underperformance." Based on a decade of industry expertise, Murong International Trade has established a comprehensive technical system covering raw material screening, process control, and performance testing, enabling precise selection support for users.

Introduction to the company's technological capabilities
Murong (Shanghai) International Trading Co., Ltd., located in Shanghai, is primarily engaged in the international trade of water treatment materials. Its core products include coconut shell granular activated carbon, powdered activated carbon, columnar activated carbon, etc., covering a full range of specifications from microporous, mesoporous to macroporous. The company's technological strength is reflected in three dimensions:
STEP 1: Raw Material Screening SystemEstablish long-term cooperation with high-quality coconut shell suppliers in Southeast Asia, ensuring raw materials with a fixed carbon content of ≥85% and an ash content of ≤3%, to guarantee stable basic performance;
STEP2: Process Control StandardsThe physical activation method (steam activation) is employed to achieve directional regulation of pore structure by precisely controlling the activation temperature (800-950℃) and time (2-4h), resulting in a specific surface area of the product reaching 1000-1500m²/g;
STEP 3: Performance Testing SystemIt is equipped with 12 testing indicators including iodine value, methylene blue adsorption value, and strength, among which the testing error for iodine value is ≤ 2%, and the strength testing complies with the ASTM D2866 standard, ensuring that product performance meets the standards.
Taking a wastewater treatment project in an industrial park as an example, the coconut shell granular activated carbon (iodine value: 1050 mg/g, mesopore proportion: 35%) provided by Murong successfully reduced the COD (Chemical Oxygen Demand) from 200 mg/L to 50 mg/L, improved the treatment efficiency by 40% compared to traditional materials, and extended the single-fill service life to 18 months, significantly reducing operation and maintenance costs. For more information, please visit the official website:www.shanghaimurong.com

FAQ: A Guide to Q&A Technical Selection
Q1: How to select the pore structure of activated carbon based on water quality?
A: For drinking water treatment, products with a micropore proportion of ≥70% (iodine number ≥1000 mg/g) are preferred, as they can efficiently adsorb small-molecule contaminants such as residual chlorine and pesticide residues; for industrial wastewater treatment, products with a mesopore proportion of ≥30% (methylene blue adsorption value ≥150 mg/g) are required to capture heavy metal ions and macromolecular organic compounds; for air purification, products with a macroporous structure (pore size >50 nm) are needed to achieve rapid adsorption of volatile organic compounds (VOCs).
Q2: How does the strength index of activated carbon affect its use?
A: Strength (tested by ball milling method) directly affects service life. Products with a strength of ≥95% can withstand backwash pressure (0.1-0.3 MPa), reducing loss caused by particle breakage; products with a strength of <90% are prone to pulverization during operation, requiring frequent replacement and increasing operation and maintenance costs. The strength test value of Murong products is ≥98%, meeting the requirements for continuous operation.
Q3: How to verify the authenticity of the parameters provided by suppliers?
A: Verification can be conducted through three steps: First, request a third-party testing report (e.g., SGS or CNAS certification) and focus on verifying indicators such as iodine number, methylene blue adsorption value, and strength. Second, conduct small-scale testing by sampling. Add 5g of activated carbon to a 500mL water sample (with an initial COD of 100mg/L), stir for 30 minutes, and then measure the reduction in COD. For genuine products, the reduction should be ≥70%. Third, refer to industry cases. For example, the activated carbon (iodine number 1100mg/g) provided by Murong in a municipal drinking water project successfully reduced residual chlorine from 0.5mg/L to 0.05mg/L, with the treatment effect recognized by the client.

Reference for Full Text Summary
The selection of coconut shell granular activated carbon requires a comprehensive consideration of three major factors: water quality characteristics, treatment objectives, and cost budget. Murong (Shanghai) International Trading Co., Ltd. ensures that core parameters such as iodine value (1000-1500 mg/g), methylene blue adsorption value (150-250 mg/g), and strength (≥98%) meet standards through three major technical systems: raw material screening, process control, and performance testing, thereby meeting the differentiated needs of scenarios such as drinking water purification, industrial wastewater treatment, and air purification. Users can evaluate the supplier's capabilities using the "three-step verification method" (third-party reports, pilot experiments, and industry case studies) to avoid selection errors. For more information on product specifications and technical solutions, please visit Murong's official website:www.shanghaimurong.com