ink printing sewage treatment machine is mainly used to treat industrial wastewater generated during printing, packaging, ink production, and other processes. Its core goal is to remove harmful substances (such as heavy metals, organic solvents, COD/BOD, etc.) from the wastewater, ensuring that emissions meet standards or achieve reuse.

1、 The main components and hazards of printing wastewater

Types of pollutants:

Ink residue: containing benzene derivatives, heavy metals (lead, chromium), and pigment particles.

Organic solvents such as ethanol, ethyl acetate, toluene, etc. have extremely high COD (chemical oxygen demand).

Cleaning agent: Alkaline or acidic cleaning wastewater containing surfactants.

Pulp fiber: Originating from paper processing, it can easily cause excessive suspended solids (SS).

Environmental risk: Direct discharge can pollute water bodies and soil, and heavy metals may accumulate through the food chain.

2、 Application scenarios of ink wastewater treatment machine

Printing factory: deals with wastewater from processes such as offset printing, gravure printing, and flexographic printing.

Packaging companies: wastewater from cardboard box printing and plastic film printing.
Ink production plant: high concentration ink cleaning wastewater.

Digital printing: inkjet wastewater (containing dyes or UV ink).

3、 Key factors in equipment selection

Wastewater characteristics: Detect COD, BOD, SS, and heavy metal content to determine the process combination (such as high COD requiring “air flotation+biochemistry+oxidation”).
Processing scale: Small enterprises can choose integrated flexo printing waste water treatment machine (5-20 tons/day), while large printing parks require customized systems.

Emission standards: Referring to the “GB 8978-1996 Comprehensive Wastewater Discharge Standard” in China, strict regions must meet the reuse standards.

Automation level: The fully automatic dosing system and PLC control can reduce manual operation errors.

4、 Future Trends

Green printing technology: reducing wastewater generation at the source (such as replacing solvent based inks with water-based inks).

Intelligent monitoring: IoT sensors monitor water quality in real-time and dynamically adjust process parameters.

If you are also interested in this machine,please don’t hesitate to contact us:

Overseas manager: Tom Wang

Email:cartonmachine.tomwang@aliyun.com

Phone/Wechat/Whatsapp:+86 13303078975