Using bacteria to \"eat\" chemical waste gases
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Chemical enterprises in Shangyu City, Zhejiang Province, generate large amounts of wastewater and waste gas on a daily basis, and pollution control has always been a challenging issue. To this end, Shangyu Water Treatment Development Co., Ltd. invested over 5.3 million yuan to introduce a \"bacterial disinfection\" project. This project features a biological waste gas purification technology with independent intellectual property rights developed by Zhejiang University of Technology, and it reaches an internationally advanced level. At Shangyu Water Treatment Development Co., Ltd., it was observed that once the operator pressed the switch for the wastewater treatment system, the blower quickly pushed the toxic gases generated in the anaerobic tank into three specially designed biological reaction towers. After a short while, what Tari exhaled was clean air. After the staff tested the gases emitted from the bioreactor, all three indicators—ammonia, hydrogen sulfide, and VOCs—met the **standards. This wastewater was collected from various chemical enterprises within the Shangyu Industrial Park in Hangzhou Bay; levels of hydrogen sulfide, methyl sulfide, and other substances therein far exceed permissible limits. According to the company’s technical department, there is a \"bed\" inside the tower on which billions of bacteria such as sulfur-oxidizing bacteria thrive. These bacteria have an astonishingly large appetite; the bacteria in one tower can consume 8,000 cubic meters of waste gas per hour, while three towers together can process 24,000 cubic meters of waste gas per hour. Chen Jianmeng, a professor at Zhejiang University of Technology who is in charge of this project, said that traditional treatment methods such as incineration, chemical washing, and activated carbon adsorption have drawbacks such as high costs and the potential for secondary pollution, while the use of biotechnology for purifying waste gas effectively addresses these long-standing problems.
Hehe, I used to do this before, and there are still many problems~
I’ve heard a lot about it and seen plenty in books, but I’ve never encountered it in reality; new technologies like this deserve to be promoted
I study biopharmaceutics~~ I was deeply moved by this:D
I saw on Channel 10 that it is possible to use waste from paper mills as feed for earthworms. The waste processed by earthworms not only has its harmful substances removed, but it also becomes an excellent fertilizer, turning waste into a valuable resource – which is very environmentally friendly.
Different microorganisms can use various types of waste gases as carbon sources for their growth, thereby consuming these waste gases and achieving the purpose of purifying them. Of course, not all types of waste gases can be removed; appropriate microbial strains are necessary, and the cultivation of these microbial strains is the most crucial aspect of such technologies. From what the OP said, it seems too general; I wonder which types of exhaust gases this technology isn’t suitable for
The media coverage isn’t good. . . . . . . . .