Our projects play a bedding role in achieving sustainable development. The hypoxia tool is introduced into the cell to reduce the local oxygen concentration in the cell and increase the oxygen flux, so that the aerobic reaction is not affected and the non aerobic reaction is more efficient.
If hydrogen producing enzymes are continuously introduced into cells, hydrogen can be obtained to realize biological hydrogen production. Hydrogen is a clean energy with high energy density and environmental protection. Its combustion product is only water, which will not cause obvious environmental pollution and reduce greenhouse gas emissions. At the same time, it can reduce environmental pollution and energy consumption. The traditional hydrogen production methods include electrolysis of water, methanol decomposition, etc. These technologies need to consume a lot of power or mineral resources, with high investment and production costs. On the other hand, it can process the products of chemical production to obtain hydrogen with high added value; Or handle garden waste and convert it into valuable hydrogen. In this way, waste biomass energy can be recycled. If we can continue to optimize relevant technologies, we can achieve the ultimate goal of replacing traditional chemical hydrogen production.
If nitrogenase is continuously introduced into cells, microbial nitrogen fixation can be achieved. Biological nitrogen fixation is the main force of nitrogen fixation in nature. Large scale production of large systems will effectively alleviate fertilizer pollution and significantly improve nitrogen utilization efficiency, which will help China move from a large agricultural country to a powerful agricultural country. On the other hand, nitrogen availability enhanced by nitrogen fixation will effectively increase the carbon sequestration of plants. Research shows that whether the terrestrial biosphere will continue to absorb more carbon dioxide in the future depends on the supply of nutrients. If efficient nitrogen fixation can be achieved, it will also greatly promote the carbon fixation, which is conducive to the realization of China's grand vision of "Carbon Peaking" and "Carbon Neutralization".
If a low oxygen element can be added to the denitrifying bacteria, it can interact with the nitrifying bacteria in the aerobic environment outside, and simultaneously treat the sewage, greatly improving the production efficiency. The 2014-2018 Analysis Report on Market Prospect and Investment Planning of China's Sewage Treatment Industry shows that with the continuous advancement of China's modernization and industrialization, the total amount of wastewater discharge is growing. From 2001 to 2012, China's total wastewater discharge increased from 43.3 billion tons in 2001 to 68.5 billion tons in 2012. The total wastewater discharge increased by 25.2 billion tons, with an average annual discharge of 2.1 billion tons more wastewater, with an average compound annual growth rate of about 4.3%. The primary task of sewage treatment industry development is to improve the performance. If the process is improved in this way, a lot of time and cost can be saved, so as to realize rapid recycling of water resources, which is conducive to sustainable development.
[1] Levy-Varon, J.H., Batterman, S.A., Medvigy, D. et al. Tropical carbon sink accelerated by symbiotic dinitrogen fixation.[J] Nat Commun 10, 5637 (2019).
[2] Wang, YP., Houlton, B.Z. Climate tipping point of nitrogen fixation.[J] Nat. Plants 8, 196-197 (2022).
[3] Kicklighter, D.W., Melillo, J.M., Monier, E. et al. Future nitrogen availability and its effect on carbon sequestration in Northern Eurasia.[J] Nat Commun 10, 3024 (2019).