? ? Green Technology Developped By Nanjing University Team – WieTec

WieTec 2020

25th-27th, Aug. 2020

National Exhibition & Convention Center(Shanghai)

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Green Technology Developped By Nanjing University Team

This new type of environmental protection technology has been developed by the team of experts from the School of Chemical Engineering affiliated to Nanjing University of Technology. The team has been engaged in the development of chemical environmental protection technology for many years, and has maintained long-term cooperation with enterprises in related industries. Relying on the advantages of the school’s scientific research platform and scientific research talents, the team set up a school-run enterprise, docked with social enterprises, and used scientific and technological achievements to solve practical problems and helped many chemical companies successfully transform.


R & D Features and Goals of Chemical Environmental Protection Technology

Research and development in areas such as energy conservation and environmental protection, resource utilization, new materials, high-tech equipment, and intelligent manufacturing, providing key common technical support for the sustainable development of the chemical industry.



Core technology and equipment

  1. Special absorption and resource utilization technology and equipment for organic tail gas

Using absorption (or catalytic absorption), the organic matter is absorbed and separated and returned to the system, which not only significantly reduces material consumption, but also greatly reduces the content of organic matter vapor in the exhaust gas. This technology has extremely high operating flexibility, and is especially suitable for processes with large fluctuations in exhaust gas flow.


  1. VOCs deep catalytic purification technology and equipment

It deals with organic tail gas containing chlorine, nitrogen and oxygen, the concentration can be hundreds to tens of thousands of mg / m3. After treatment, the total non-methane hydrocarbon content can be reduced to 0-5mg / m3, which is much lower than 80mg in Jiangsu / m ° emission standard, the removal rate of organic pollutants is more than 999%.

The device has a small floor area, high purification efficiency, no need to add natural gas to support combustion, while maintaining low operating costs.

  1. Adsorption, separation and recovery of chemical wastewater-purification technology and equipment

It utilizes “adsorption material + regeneration technology + simulated moving bed” to achieve the standard discharge of organic wastewater (COD: 50000> 100mg / L) and enrichment treatment of low-concentration organic matter.


  1. Acidification-salt precipitation separation and recovery technology and equipment

Treatment of organic carboxylate wastewater by “acidification-salting out-distillation” method. First, the carboxylic acid is replaced by acidification; then the salting-out effect is used to separate the carboxylic acid oil phase and distill the water phase. The carboxylic acid oil phase can be returned to the system for recycling.


  1. “Three wastes” integrated purification technology and equipment

Under the action of the pro-oxygen cracking and deep oxidation multifunctional catalyst, the macromolecular organic pollutants are cracked into small molecular organic compounds, and then deeply oxidized into small molecular inorganic compounds such as carbon dioxide and water to realize purification treatment of pollutants. In the oxygen cracking reactor, the waste gas, waste water and waste liquid containing organic pollutants can be treated at the same time, so that the gas and water can be discharged up to the standard.


  1. Industrial waste salt treatment technology containing organic pollutants

The organic pollutants in the industrial waste salt solution are enriched by adsorption-desorption technology, and then discharge is achieved by the oxygen cracking technology. The purified salt solution enters the alkali-making process, and the technology of the alkali-making process is mature.



  1. Demonstration device for on-line detection and deep purification of mobile exhaust gas

It uses the self-developed “mobile exhaust gas online detection and deep purification demonstration device” to conduct on-line exhaust gas detection and deep purification demonstration on the spot of chemical, pharmaceutical, agrochemical and other companies to compare the total non-methane hydrocarbon content in the exhaust gas at the import and export. The hydrocarbon content has dropped from tens of thousands to less than 1 omg / m3.


  1. University-research institute waste liquid treatment device

In response to the large amount of chemical waste liquid produced by scientific research and student experiments in many universities and research institutes, a waste liquid treatment skid-mounted device suitable for use in a university’s research institute has been developed.


Those interested in the above technologies and products may contact Technology Transfer Center of Nanjing University of Technology Teachers Liu and Yang Tel: 025-83172212

For more technical information, industry-university-research activities, please visit Nanjing University of Technology official website or their WeChat public account.




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