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Wastewater treatment technology in the organic pigment industry needs to be upgraded

Wastewater treatment technology in the organic pigment industry needs to be upgraded

  • Categories:Industry News
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  • Time of issue:2020-07-20
  • Views:0

(Summary description)On the morning of March 17th, Premier Li Keqiang and Vice Premiers Zhang Gaoli, Liu Yandong, Wang Yang, and Ma Kai held a press conference for the first session of the Twelfth National People’s Congress. During the meeting, it was mentioned that the situation of water pollution and land pollution should be figured out. Resolutely carry out remediation, raise the threshold of environmental protection, eliminate backward production capacity, etc., fully demonstrate the determination and strength of the new leaders in environmental pollution control, and the wastewater generated during the production of organic pigments has become the main killer of current environmental protection.

Wastewater treatment technology in the organic pigment industry needs to be upgraded

(Summary description)On the morning of March 17th, Premier Li Keqiang and Vice Premiers Zhang Gaoli, Liu Yandong, Wang Yang, and Ma Kai held a press conference for the first session of the Twelfth National People’s Congress. During the meeting, it was mentioned that the situation of water pollution and land pollution should be figured out. Resolutely carry out remediation, raise the threshold of environmental protection, eliminate backward production capacity, etc., fully demonstrate the determination and strength of the new leaders in environmental pollution control, and the wastewater generated during the production of organic pigments has become the main killer of current environmental protection.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-07-20
  • Views:0
Information

On the morning of March 17th, Premier Li Keqiang and Vice Premiers Zhang Gaoli, Liu Yandong, Wang Yang, and Ma Kai held a press conference for the first session of the Twelfth National People’s Congress. During the meeting, it was mentioned that the situation of water pollution and land pollution should be figured out. Resolutely carry out remediation, raise the threshold of environmental protection, eliminate backward production capacity, etc., fully demonstrate the determination and strength of the new leaders in environmental pollution control, and the wastewater generated during the production of organic pigments has become the main killer of current environmental protection. Overcoming the wastewater treatment barrier has become a key issue for the survival and development of the organic pigment industry. On the morning of March 17th, Premier Li Keqiang and Vice Premiers Zhang Gaoli, Liu Yandong, Wang Yang, and Ma Kai, at the invitation of Spokesperson Fu Ying, held a press conference for the first session of the Twelfth National People’s Congress. They met with Chinese and foreign reporters covering the two sessions and answered them. Questions from reporters. In answering a question from a reporter from the People’s Daily, it was mentioned: The main problem that needs to be solved in a big China is to continue to develop the economy. The key is to promote economic transformation, and superimpose the dividends of reform, the potential of domestic demand, and the vitality of innovation. New impetus, and new improvements in quality and efficiency, employment and income, environmental protection and resource conservation, creating an upgraded version of China’s economy. In answering the French Le Figaro reporter’s question on whether China can solve the problems of environmental pollution and food safety while ensuring economic growth, he said: With regard to the situation of water pollution and land pollution, it is necessary to find out the bottom line and resolutely carry out remediation. The mode of development needs to be quickly transformed. Poor and backwardness is not good for green waters and green mountains, nor is it good for a degraded environment. We need to further innovate development concepts and promote scientific development. One is to no longer owe new accounts, including raising the threshold for environmental protection; the second is to speed up repayment of old accounts, including eliminating outdated production capacity. The government should enforce the law with an iron fist and accountability. We cannot sacrifice the environment in exchange for growth that the people are not satisfied with. Through this series of policies and spirits, it can be seen that under the deteriorating environment in the industrially developed areas of East China and the southeast coast of China, the new leaders’ determination and efforts to control environmental pollution have resulted in the production of organic pigments. Wastewater has become the main killer of current environmental protection. Whether or not to pass the wastewater treatment barrier has become a key issue for the survival and development of the organic pigment industry. Organic pigments are widely used in coatings, inks, plastics and other industries. Organic wastewater, dust and waste gas are discharged during the production process. Among them, organic wastewater is the most harmful, and its treatment is also the most difficult problem. Organic pigments will produce dust pollution during the production, grinding and compounding process. Organic pigment wastewater has the characteristics of high COD, high chroma, high salt content, and difficult to degrade. The sewage discharged during the production process often contains carcinogenic substances. (Such as aromatic amines, nitrites), Kurlandsky et al. pointed out that many pigments cannot be metabolized by the human body because they are insoluble in water, but can be adsorbed. For example, copper phthalocyanine can be adsorbed by proteins in the serum, and this adsorption accumulates in organisms. Can not be eliminated. Because of this adsorption accumulation can lead to the destruction of fibrin structure, thereby causing changes in blood coagulation. At present, the conventional biological treatment technology treats organic wastewater. Although the technology is mature, the ammonia nitrogen content still cannot meet the emission standards of the organic pigment industry. While the newly developed foreign treatment technologies such as carbon adsorption and membrane separation, although the treated wastewater can meet the emission requirements, the cost is high and the equipment life is short, and enterprises simply cannot use it. Therefore, in view of the current macro policies and the development status of the organic pigment wastewater treatment industry, the key to eradicating the pollution problem in the organic pigment industry is to develop a batch of advanced, mature and low-cost organic wastewater treatment technologies.

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