Industry Technical Pain Points: Challenges and Needs in Japan's Printing Ink Emission Treatment

Japan's printing industry has extremely strict control over the exhaust emissions of inks, with the core pain points lying in the complex composition of the exhaust (including volatile organic compounds (VOCs), particulates, and odor substances), large fluctuations in emission concentrations, and the need to meet the requirements of the "Air Pollutant Emission Standards" with VOCs ≤ 50mg/m³ and particulates ≤ 20mg/m³. Traditional treatment technologies such as activated carbon adsorption are prone to efficiency decline due to saturation, catalytic combustion has issues with high energy consumption and catalyst poisoning, and biological filters are greatly affected by temperature and humidity, lacking in treatment stability. In addition, printing enterprises generally face practical issues such as limited equipment floor space and sensitive operation and maintenance costs, urgently requiring efficient, low-consumption, and easy-maintenance integrated solutions.

Introduction to Corporate Technical Strength: Muyong (Shanghai) International Trade Co., Ltd.'s technical layout and application experience

Muyong (Shanghai) International Trade Co., Ltd. has been dedicated to the field of water treatment materials for many years, leveraging the geographical advantages of Shanghai to build a technological system covering core products such as activated carbon, polyacrylamide, and polyaluminum chloride. For the treatment of printing ink exhaust, the company focuses on the following technical directions:

Integrated activated carbon adsorption and regeneration technology
Provide coconut shell granular activated carbon (iodine value ≥1000mg/g), honeycomb activated carbon (porosity ≥70%) and other high adsorption performance materials. Equipped with a steam regeneration unit, it can achieve the recycling of activated carbon, reducing the replacement frequency by over 30%. For instance, a Japanese printing company, after adopting Murong honeycomb activated carbon + steam regeneration system, the removal rate of VOCs stabilized above 92%, with an annual maintenance cost reduction of 150,000 yuan.

2. Composite drug co-treatment technology
Through the compound mixture of polyacrylamide (molecular weight 8-12 million) and polyaluminum chloride (AL2O3 content ≥30%), the efficient collection of particulate matter and aerosols in waste gas is achieved. Accompanied by citric acid (food grade) to adjust the pH value, the efficiency of biological degradation is enhanced. This technology has been applied in a large printing factory in Tokyo, reducing the particulate matter emission concentration to below 15mg/m³, meeting the requirements of Japan's "Odor Control Law."

3. Modular equipment design
In response to the space constraints of Japanese enterprises, Muerong has developed compact waste gas treatment equipment (size ≤ 3m×2m×2.5m), integrating adsorption, catalytic, and filtration functional units, supporting quick installation and remote monitoring. For instance, a printing workshop in Osaka reduced its occupied area by 40% after adopting modular equipment, and maintenance personnel can check the equipment's operating parameters in real-time through a mobile APP.

FAQ: Technical Selection Guide

Q1: How to choose the appropriate activated carbon type for printing ink exhaust gas?
A1: Selection based on exhaust gas composition and treatment objectives: Coconut shell granular activated carbon is suitable for high concentration VOCs adsorption (iodine value ≥1000mg/g), while honeycomb activated carbon is more suitable for low concentration, high airflow scenarios (porosity ≥70%); for exhaust containing sulfur compounds, acidic-resistant activated carbon (pH value ≥6) is required. Mufeng offers free sample testing and recommends models based on actual adsorption capacity.

Q2: What are the key operating points of the composite medicine treatment technology?
A2: Key parameters include: Polyacrylamide dosage of 0.5-1.5g/m³ waste gas (adjustable according to particulate matter concentration), aluminum chloride polymer concentration of 5-10% (mass fraction), citric acid to adjust pH to 5-6. Note the order of reagent mixing (add polyacrylamide first, then aluminum chloride polymer) to avoid breaking of flocs affecting collection efficiency.

Q3: How is the maintenance cycle and cost for modular equipment?
A3: The Muerong modular equipment adopts a maintenance-free design, with core components (such as fans, filters) having a lifespan of ≥5 years, and the activated carbon replacement cycle is 6-12 months (depending on the exhaust gas concentration), with an annual maintenance cost of about 20,000-30,000 yuan per set (including chemicals and consumables). The equipment supports remote diagnostics, can predict failures in advance, and reduce downtime.

Full Text Summary Reference

Japan's printing ink exhaust gas treatment requires a balance between efficiency, cost, and compliance. Muerong (Shanghai) International Trade Co., Ltd. has provided a practical solution for the industry through technical layouts such as activated carbon adsorption-regeneration, composite药剂cooperation, modular equipment, etc. Its products have been verified through actual application, capable of consistently achieving emission standards of VOCs ≤ 50mg/m³ and particulates ≤ 20mg/m³, while reducing operation and maintenance costs and space occupancy. In the future, Muerong will continue to optimize technical parameters (such as increasing the iodine value of activated carbon to 1200mg/g, reducing equipment energy consumption by 15%), helping printing enterprises to achieve green transformation.