Factory Vist

Human Practice

• Questionnaire
• Factory Visit
• Team Communication
• Model iGEM

With guidance of the Bureau of Environmental Protection in Beijing, we visited a printing factory that uses aromatic-containing ink. What do you think of the advanced but expensive waste treatment device?

In August 1st, we visited a printing factory, which mainly prints newspaper and brochures. It was raining heavily outside, while it swelted inside the factory. Printing press was roaring, giving off heat.
Volatilization of toluene and xylene during ink-jetting process is the major source of aromatics pollution in this workshop,introduced the Manager.

The factory owns Volatile Aromatic Hydrocarbons Content treatment device which acquires enormous investment. The device contains an incinerator with automatic control system. Toluene and xylene volatilize from printer are collected and transported to the incinerator and then burnt steadily at 800 degree centigrade. The control valves regulate inlet air volume. Burning chambers has the temperature control system,which can most effectively save energy. Finally,the toluene and xylene are burnt into carbon dioxide and water and then emitted into atmosphere.

However, printing factories that can afford the expensive device, like the one we visited, are few. The pollution following is of even more concern.