Ink printing wastewater treatment machine is a specialized environmental protection solution tailored for the unique wastewater characteristics of flexo printing factories. As professional China suppliers, we focus on designing, manufacturing and exporting high-efficiency, energy-saving and fully automatic flexographic printing sewage treatment systems, helping global printing enterprises solve wastewater discharge problems, meet international environmental standards, and reduce operational costs stably. Flexographic printing widely applies water-based ink, adhesive and cleaning agents in production, resulting in wastewater containing high COD, suspended solids, ink colloids and organic pollutants, which cannot be processed by ordinary sewage devices. Our professional flexographic printing sewage treatment equipment perfectly targets these industry pain points and has become a trusted choice for printing factories worldwide.
Core Challenges of Flexographic Printing Wastewater Treatment
Flexo printing wastewater has distinct industrial characteristics that bring great challenges to conventional sewage treatment technologies. First, the wastewater contains a large amount of water-based ink residues and colloidal substances, which are stable in water and difficult to naturally precipitate, easily causing water turbidity and chroma exceeding standards. Second, the water quality and water volume fluctuate greatly with production shifts, printing product types and cleaning frequency, putting forward high requirements for the stability of treatment equipment. Third, long-term discharge of untreated flexo printing sewage will cause serious water pollution, and non-compliant discharge will lead to huge fines and production suspension risks for printing enterprises. In addition, traditional treatment equipment has defects such as large floor area, high energy consumption, complex operation and frequent sludge accumulation, increasing the operating burden of factories. Our flexographic printing sewage treatment equipment is developed and optimized aiming at these core challenges, realizing efficient purification and low-cost operation in one set of equipment.
Advantages of Our Flexographic Printing Sewage Treatment Equipment
As reliable China suppliers, our flexographic printing sewage treatment equipment adopts a mature integrated treatment process combining physical filtration, chemical coagulation, biochemical degradation and precision filtration, which completely solves the purification difficulties of flexo printing wastewater. Different from single-function ordinary sewage equipment, our integrated system realizes multi-stage purification including impurity interception, pH adjustment, flocculation precipitation, organic degradation and deep filtration, effectively removing COD, BOD, suspended solids, residual ink and harmful organic substances in wastewater, with the treated water fully meeting national and international industrial discharge standards.
The equipment adopts a fully automatic PLC intelligent control system, realizing unattended automatic operation, automatic dosing and automatic water quality monitoring. It greatly reduces labor investment and avoids treatment instability caused by manual operation errors. The fully enclosed structural design prevents sewage overflow, odor diffusion and secondary pollution, improving the on-site working environment of printing workshops. Meanwhile, we equip the equipment with a high-efficiency sludge pressing and drying system. The separated sludge has low moisture content, which is convenient for centralized recycling and disposal, saving the subsequent sludge treatment cost for enterprises.
In terms of energy saving and site adaptation, our flexographic printing sewage treatment equipment features compact structure, small floor area and flexible installation, suitable for small, medium and large flexo printing factories, label printing plants and packaging printing enterprises. Compared with traditional large-scale sewage treatment stations, it has low one-time investment and low daily operating power consumption and chemical consumption, with ultra-high cost performance. The equipment supports customized processing according to customers’ daily sewage discharge (5-100 tons) and water quality indicators, adapting to different production scales and regional environmental protection standards worldwide.
Working Principle & Treatment Process
Our flexographic printing sewage treatment equipment follows a scientific and efficient purification process with stable and reliable treatment effect. Firstly, the flexo printing wastewater generated from workshop cleaning, ink mixing and equipment washing is collected into the regulating tank to balance water volume and stabilize water quality, avoiding the impact of water quality fluctuation on subsequent treatment. Secondly, the wastewater enters the reaction tank for automatic dosing of composite coagulants and flocculants, which rapidly break the stable emulsion structure of ink colloids, gather tiny suspended pollutants into large flocs.
After flocculation reaction, the sewage enters the high-efficiency sedimentation tank to realize solid-liquid separation. The settled sludge is automatically transported to the filter press system for dehydration and drying, while the supernatant enters the biochemical filtration unit to degrade residual organic pollutants through microbial metabolism. Finally, the water is purified by precision sand filtration and activated carbon filtration to remove residual chroma and trace impurities. The treated clean water can be directly discharged up to standard or recycled for workshop equipment cleaning and production water reuse, realizing water resource recycling and further saving production costs.
Wide Application Scenarios
Our flexographic printing sewage treatment equipment is specially designed for the flexo printing industry and widely applicable to multiple scenarios: food packaging flexo printing, label flexo printing, carton flexo printing, plastic film flexo printing, wallpaper printing and other supporting sewage treatment projects. It is compatible with all water-based ink flexographic printing production lines, and can stably treat printing wastewater generated from plate cleaning, roller cleaning, ink barrel cleaning and daily production discharge. Whether it is small batch intermittent production or large-scale continuous production, the equipment can maintain stable treatment efficiency, which is highly recognized by overseas customers in Southeast Asia, Europe, Africa and South America.
Why Choose Us as Your China Supplier
We are a professional manufacturer and exporter of ink wastewater treatment machine in China, integrating R&D, production, sales and after-sales service. We have rich industrial experience in environmental protection equipment for the printing industry, fully understand the wastewater treatment pain points and environmental compliance requirements of global printing enterprises. All equipment adopts high-quality anti-corrosion materials, with wear resistance, long service life and low failure rate, reducing later maintenance costs.
We provide one-stop overseas services including customized scheme design, factory pre-installation, export packaging, door-to-door installation guidance and after-sales technical support. All products comply with international quality certifications, with reliable quality and compliant discharge effects. We support flexible trade terms and fast delivery, and provide professional English operation manuals and remote technical guidance to ensure that customers can quickly install and put into use the equipment. If you are looking for high-quality, low-cost and stable flexographic printing sewage treatment equipment from reliable China suppliers, please contact us for free solution quotation and technical consultation!
Email:cartonmachine.tomwang@aliyun.com
Phone/Wechat/Whatsapp:+86 133 0307 8975
Phone/Wechat/Whatsapp:+86 133 0307 8975
Post time: Sep-14-2026