During the shutdown for maintenance of catalytic cracking units, how should the alkaline wastewater and amine-containing wastewater generated from product purification be treated? And what is their destination? Everyone is welcome to share their opinions on the practices in their own factories.
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During the shutdown for maintenance of catalytic cracking units, how should the alkaline wastewater and amine-containing wastewater generated from product purification be treated? And what is their destination? Everyone is welcome to share their opinions on the practices in their own factories.
Alkaline wastewater is desulfurized, while amine-containing wastewater is sent back to the amine solution regeneration unit
Here, it enters the accident tank and is gradually transferred to the wastewater treatment plant for processing
Which unit is used for desulfurization of alkaline wastewater? It seems we don’t accept them
In our LPG desulfurization process, fiber membrane technology generates a large amount of waste alkaline water; once we discharged some of this alkali into the wastewater treatment plant, which killed the bacteria there. Our wastewater treatment plant’s receiving tank, which is also the waste alkali tank, has a capacity of just over 40 cubic meters; so how should alkaline wastewater be disposed of?
Directly into the well, to be processed by the wastewater treatment plant
Consider how your factory handles alkaline slag; it can be used for wastewater neutralization. Amine-containing wastewater can be sent to the sulfuric acid water tank to be stripped together with the acidic water
Water can be transported to the accident pond using tank trucks; we have arrived at the accident pond here
The high-concentration waste alkali from the alkali washing tank is sent to the waste alkali tank; once a certain amount has accumulated, it is treated as a hazardous chemical (treated by units qualified for such handling or by affiliated units equipped with the necessary treatment facilities), while the low-concentration alkaline water is sent directly to the sewage treatment plant. The amine-containing wastewater is directly fed into the amine solution storage tank to mix with the amine solution.