The issue of wastewater generated from ammonia synthesis
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This post was last edited by lflsedin on 2016-11-27 at 10:06. The GB13548-2001 standard for wastewater discharge in the ammonia synthesis industry sets a limit of 10 m3/t for the wastewater generated by large-scale ammonia synthesis plants. Does this displacement standard refer to the wastewater discharge at the end of the industrial production process in the plant? Would that be too big? It’s impossible to reach such a large amount.
Discharge directly according to the standard requirements. Does it include wastewater from circulating water and desalinated water?
It refers to the total amount of water used for replenishment, that is, the water consumed per hour as it is delivered outside! ! ! ! ! :victory::victory:
I don’t understand; how did it become fresh water?
This issue varies from company to company; some companies, after carrying out terminal water treatment, can reuse the water, so there is no need for external wastewater discharge.
Indeed, are there experts questioning the issue of low displacement?! Can’t figure it out!
Those experts might still be at the technological level of \"primitive society\"; back then, even the high output amounts could exceed 40 to 50 tons of ammonia per unit time. Is it still possible to do this now?
What were the main reasons for the high volume of wastewater generated in previous atmospheric pressure gasification processes? I’m not familiar with the previous process.
It doesn’t seem feasible now, but GB13548-2001 was issued at the end of 2001; back then, there was no mandatory requirement for zero wastewater discharge, and environmental protection regulations, oversight, and wastewater disposal fees were not as strict as they are today. Many enterprises at that time still discharged large amounts of wastewater.
Indeed, there are still 30 units left. At present, the capacity of fixed-bed systems is only around 2.5 tons, so overall water pollution control can still be achieved; the total water consumption is roughly 10 tons.
There is one unit that consumes over 10 tons of water per ton of ammonia produced; this refers to the water added to the system