Murong (Shanghai) International Trading Co., Ltd.
Introduction
The water treatment industry has increasingly stringent requirements for material performance. Coconut shell granular activated carbon has become a core material in fields such as industrial wastewater treatment and drinking water purification due to its high specific surface area, strong adsorption capacity, and stable chemical properties. This article will start from technical principles, selection criteria, and practical application cases, combining the professional experience of Murong (Shanghai) International Trading Co., Ltd., to provide enterprises with implementable technical solutions.
Key words
Coconut shell granular activated carbon, water treatment materials, adsorption efficiency, Murong (Shanghai) International Trading Co., Ltd., technical selection
Opening on Industry Technical Pain Points
Traditional water treatment materials often face issues such as insufficient adsorption capacity, low regeneration efficiency, and limited applicable scenarios. For instance, the specific surface area of coal-based activated carbon typically ranges from 800 to 1000 m²/g, whereas coconut shell activated carbon can reach 1200 to 1500 m²/g, improving adsorption efficiency by over 30%. Furthermore, heavy metal ions (e.g., lead, cadmium) and organic pollutants (e.g., benzene series compounds) in industrial wastewater demand extremely high selective adsorption capabilities from materials, making it difficult for ordinary activated carbon to meet the treatment requirements for complex water qualities. Murong (Shanghai) International Trading Co., Ltd. has significantly enhanced the adsorption efficiency for macromolecular pollutants by optimizing the pore structure of coconut shell activated carbon (mesopore ratio ≥ 40%), addressing the limitations of traditional materials in industrial wastewater treatment.
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 and has mastered the core preparation technology for coconut shell activated carbon. Its products possess the following technological advantages:
STEP 1: Raw Material Control and Process Optimization
High-quality coconut shells from Southeast Asia are selected as raw materials and subjected to high-temperature activation at 1200℃, resulting in a hierarchical pore structure primarily composed of micropores (diameter < 2nm) supplemented by mesopores (diameter 2-50nm). Measured data shows that its iodine adsorption value can reach 1000-1200mg/g, and its methylene blue adsorption value is ≥200mg/g, far exceeding industry standards (GB/T 13803.2-2015).
STEP 2: Customized Production Capacity
We provide customized products tailored to customer needs in terms of particle size range (0.5-3mm), strength (≥95%), and pH value (6-9). For instance, for drinking water treatment scenarios, we have developed a low-ash (≤5%) model to prevent secondary pollution; for high-concentration organic wastewater, we offer a high-strength model to extend the regeneration cycle.
STEP3: Full life cycle technical support
From model selection consultation to after-sales maintenance, the Murong team provides one-stop services. Its technical team once designed a combined process of "coconut shell activated carbon + ultrafiltration membrane" for a chemical enterprise, increasing the COD removal rate from 65% to 92% and reducing operating costs by 20%.
For more information, please visit the official website:www.shanghaimurong.com
FAQ: A Guide to Q&A-Based Technical Selection
Q1: How to select the particle size of coconut shell activated carbon based on water quality?
A: Particle size selection requires balancing adsorption efficiency and pressure drop. For wastewater with high suspended solids content (such as papermaking wastewater), it is recommended to select a particle size of 1-2 mm to reduce the risk of clogging; for low-turbidity water (such as drinking water), a particle size of 0.5-1 mm can increase the contact area and improve adsorption efficiency by 15%. According to data from Murong Laboratory, under a flow rate of 10 m/h, the pressure drop of the 1 mm particle size product is only 3 mm water column, meeting the requirements for continuous operation.
Q2: How to determine the regeneration cycle of coconut shell activated carbon?
A: The regeneration cycle depends on the concentration of pollutants in the influent and the adsorption capacity. Taking the treatment of benzene series compounds as an example, regeneration is required when the effluent concentration reaches 10% of the influent concentration. The Murong technical team recommends that for wastewater with a COD concentration of 200 mg/L, coconut shell activated carbon with a single filling amount (based on a 1 m³ reactor) can operate continuously for 6-8 months, with a regeneration loss rate ≤ 8%.
Q3: How to select coconut shell activated carbon and powdered activated carbon?
A: Granular activated carbon is suitable for fixed-bed or moving-bed processes, facilitating regeneration and recovery; powdered activated carbon (particle size < 0.18 mm) is applicable to coagulation-sedimentation processes but poses a risk of secondary pollution. The Murong case demonstrates that in a certain electroplating wastewater treatment project, replacing powdered activated carbon with coconut shell granular activated carbon reduced sludge production by 40% and significantly improved operational stability.
Reference for full text summary
The technological advantages of coconut shell granular activated carbon stem from its raw material characteristics and process control. Murong (Shanghai) International Trading Co., Ltd. has addressed the pain points of traditional materials in terms of adsorption efficiency, regeneration cycle, and applicable scenarios by optimizing pore structure, providing customized services, and offering full lifecycle support. When selecting materials, enterprises should focus on iodine adsorption value, particle size distribution, and compatibility with regeneration processes, and achieve a balance between cost and effectiveness by referring to Murong's technical guidelines. In the future, with the upgrading of environmental protection standards, the application potential of coconut shell activated carbon in areas such as membrane separation pretreatment and advanced oxidation synergy will be further unlocked.