Gas generation wastewater treatment method
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The wastewater generated in coal-based ammonia production plants for gas production is of extremely poor quality, containing numerous pollutants at high concentrations. Especially under the guidance of relevant policies, enterprises adopt closed-loop systems, which leads to a continuous accumulation of pollutants to ever-high levels – a situation that now threatens the very survival of these enterprises! I urge my colleagues to conduct thorough discussions on the methods for treating wastewater from the gas production units in their respective companies, with the aim of finding better, more efficient, and more cost-effective treatment processes to address the challenges faced by this industry. The quality of the raw water is as follows (based on the conditions in my workplace): After circulation, the following values are observed: COD: 1500–1800 mg/l; NH3-N: 1200 mg/l; CN-: 20 mg/l; SS (at the micro-vortex outlet): 120 mg/l; S2-: 10 mg/l. Due to poor biodegradability, high concentrations of cyanide, and the failure to train the bacteria, they all die! : ( This post was last edited by ft2489244 on 2007-12-21 08:46 )
Our company is also an ammonia synthesis plant; for the treatment of wastewater generated in the gas production process, micro-vortex sedimentation tanks are used, and the concentration of suspended solids in the effluent is 30 mg/l. The effluent and recycled water are combined and fed into the SBR treatment system, which is currently under commissioning. After reading what you said, I’m not sure if the debugging will be successful.
Excuse me, upstairs, how is the water flow? What are the concentrations of the other pollutants?
It mainly depends on what is contained and what the concentration is in order to come up with a plan.
The difficulty in treating gasified wastewater is a common issue; the composition of pollutants is also related to the gasification technology used
I think it should be slurry coal gasification
Our factory uses technology from Harbin Institute of Technology to treat wastewater, via biological bacteria treatment. I can only provide these; it’s a matter of technical confidentiality.
It’s not for vaporizing sewage, it’s for gas generators! Washed down after coal combustion
Membrane separation technology is used! The treatment cost is around 5 yuan per ton! You can contact me directly for details!