Una breve introducción a las aguas residuales de impresión y teñido

A brief introduction to printing and dyeing wastewater

Now the sewage discharge from printing and dyeing plants is very large, which seriously affects our living environment and even threatens our health. So let me introduce the printing and dyeing wastewater to you.

The sewage discharged from the printing and dyeing factory contains a large amount of organic and inorganic substances, such as rayon fiber, starch, synthetic polyester agent, synthetic pulp, etc. Among them, some organic substances can be digested, and this process requires oxygen. Although other organic and inorganic substances cannot be digested, some of them can undergo redox reactions with oxygen and can also consume oxygen.

If the oxygen consumed by them is too high, such printing and dyeing wastewater will be discharged into the water and will compete for oxygen with aquatic organisms. If there is enough oxygen in the natural water, anaerobic bacteria will quickly multiply with these organic substances as nutrients. In the process of digesting organic matter, anaerobic bacteria generate toxic pollutants, such as methane and hydrogen sulfide. In severe cases, the water will turn black and stink. In addition, printing and dyeing wastewater has strong alkalinity and large chroma, and the presence of heavy metals exceeds the specified amount, which also pollutes natural water. All this will cause great damage to farmland and people’s health.

Xian CHIWATEC Water Treatment Technology es una empresa de alta tecnología especializada en varios dispositivos de procesamiento de agua. Aparte de estos productos individuales, que cubren una serie de tipos y series, también podemos ayudar con proyectos de ingeniería integrales relacionados. Gracias a nuestro arduo trabajo y dedicación desde nuestra fundación, ahora somos uno de los fabricantes de equipos de tratamiento de agua de más rápido desarrollo en el oeste de China.

Otras lecturas:

• Esquema técnico de equipos de tratamiento de aguas residuales industriales.

• Resumen y clasificación de las aguas residuales industriales