Discussion on water-saving projects in the coal chemical industry: What water-saving technologies and measures have been adopted by everyone?
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Discussion on water-saving projects in the coal chemical industry: What water-saving technologies and measures have been adopted by everyone? For example, we use graywater for cleaning ； Prepare the additive using gray water.
We return the filtrate to the gasification coal grinding process, and replace the deionized water and similar substances with other types of water
This is part of current environmental regulations; the actual operating costs of evaporation crystallization are too high. It’s better if the factory has an abundance of low-pressure steam available
I think another thing is to minimize external wastewater discharge during gasification, which allows for the use of a hardness removal device in the gasification process
What specific process is used for the hardening devices you use?
All the water used in the purification system to remove dust and cool gas is collected in a sedimentation tank, where it is purified and cooled before being returned to the purification system. Recycling.
The waste steam is recovered and fed into the deaerated water system
Desalinated water recovery system, circulating water recovery system, graywater recovery system, sludge water recovery system – in most cases, such recovery operations result in losses