Wastewater treatment cost for two-stage fixed-bed gas generator
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Single-stage gas generators are prohibited from being newly built in various policy documents due to the generation of difficult-to-treat wastewater containing tar and phenol-cyanide, and they will be phased out gradually in the future. Two-stage gas generators use lump coal such as lignite and bituminous coal as raw materials, and still produce wastewater containing tar and phenol-cyanide; at present, **they have not been completely banned. Please discuss, in the context of two-stage gas generators in actual production, 1. What are the range of concentrations of various pollutants in the wastewater? 2. What are the wastewater treatment processes? 3. What are the cases? Images, text, etc. 4. Wastewater treatment cost: the total cost required to treat 1 ton of wastewater, including electricity, chemicals, equipment depreciation, labor, etc.?
This topic is not worth discussing; based on the current understanding of gasification, it makes no sense to talk about such end-of-pipe treatment methods. Carbon-molecule vaporization technology can provide a radical solution at the source.
China currently has a considerable number of such two-stage furnaces in operation
A considerable number of such two-stage furnaces are in operation, causing significant pollution, and the regulatory authorities resolved the issue with just one document. Therefore, it is pointless to discuss such outdated processes and end-of-pipe treatment. Scientists and engineers should provide new technological solutions. The carbon molecule vaporization combustion technology was developed to address these issues, and its advantages include: prevention at the source, reduction of elemental usage, environmental protection and energy savings, as well as efficient utilization of carbon resources.
This environmental requirement can be based on GB31571 or the water discharge standards specified in that standard. As for the differences between fixed-bed gasification and BGL or Lurgi, as you mentioned, what are they? Can we draw on their proven experience?