Textile Printing And Dyeing Wastewater Treatment Circular Economy Park Into A New Direction

The high energy consumption and high pollution characteristics of the textile and dyeing industry become an important obstacle to the development of the industry. In the past, in order to develop local economy, government departments tended to adopt a more lenient management system for pollution. With the strictness of China's environmental protection policy, the contradiction between the high pollution characteristics of textile printing and dyeing industry and the sustainable development of local environment is becoming increasingly prominent. Exploring the pattern of "friendly interaction" between the textile and dyeing industry and the ecological environment has become a hot topic for many industry enterprises and experts.


According to the international environmental protection online research and analysis, the textile printing and dyeing enterprises show relatively concentrated areas, but the size, the uneven equipment and the relative dispersion in a specific area. The textile printing and dyeing wastewater treatment has the following characteristics.


First of all, it is difficult to supervise. Most printing and dyeing enterprises are closer to the river flow and dispersed pattern. Some enterprises repeatedly prohibit canting, stealing and digging out pipelines and illegal emissions in order to reduce costs. Even if the environmental monitoring department increases the manpower input and strengthens the supervision, it is very difficult to supervise the illegal emission behaviors such as stealing and other illegal activities.


Then there is a higher technology to meet the target requirements, and the general small factories are unable to invest in the corresponding processing equipment. Printing and dyeing wastewater belongs to high concentration industrial waste water. The treatment of qualified effluent has considerable requirements for corresponding technology, process and equipment.


According to the international environmental protection online collation of multi-party information, in recent years, the new printing and dyeing industry mode with environmental protection enterprises + industrial parks + printing and dyeing enterprises is taking shape. The high-tech environmental governance enterprises represented by CITIC environmental technology have achieved initial success in exploring this model.


Taking the Shantou printing and dyeing industry as a whole, for example, in order to cope with the harnessing of the Lianjiang River Basin, all printing and dyeing enterprises were closed before December 31, 2018. This measure has made some achievements in improving the water quality of the Lianjiang River Basin, but at the same time, it has also seriously affected the development of local printing and dyeing industry. According to public information, a few days ago, Shantou Chaonan textile printing and dyeing circular economy industrial park will be produced soon. It will provide sustainable development guarantee for the development of Shantou textile printing and dyeing industry. The park is built by CITIC environmental technology investment and built on the "five in one" circular economy concept: printing and dyeing production, sewage treatment, reclaimed water use, central heating, clean energy power generation, and slag ash brick making. Basically, we can create a "no waste campus".


Over 60% of Shantou's Chaonan economy is related to textile printing and dyeing. At the end of 2018, the production of all printing and dyeing enterprises was shut down, bringing a lot of pressure to the local economic development. "The original orders can only be transferred to factories in Fujian or Zhejiang." a factory owner said, "I really hope that the industrial park will be built quickly. We can check in and start production." At the beginning of 2019, a business owner contacted by international environmental protection online visited the project. "The longer we procrastinate, the higher the cost of maintaining our customers. If customers are accustomed to placing orders for printing and dyeing enterprises elsewhere, we will have to re invest in developing new customers, which is indeed very difficult for us to run enterprises".


According to the international environmental protection online first-line reporter, since January 1, 2019, the Shantou eco environmental bureau has no longer issued sewage permits to the printing and dyeing enterprises outside the park, which forced enterprises to speed up the construction progress. In addition, according to the staff of CITIC brand publicity department, since the launch of the project, more than 20000 visitors have been visited by the government, including government departments from all over the country, environmental protection enterprises, experts and scholars. The project has become a benchmark in the field of industrial wastewater treatment, and provides a reference case for the development of textile printing and dyeing industry and the treatment of ecological environment.