How petrochemical enterprises can reduce the amount of recycled water discharged
Thread Content
The water quality in the circulating water systems of petrochemical enterprises does not meet the required standards; as a result, large amounts of circulating water must be discharged daily, along with fresh water being added to replace it. How can the discharged circulating water be treated so that it can be used to replenish the circulating water systems, thereby reducing the amount of fresh water that needs to be added?
Generally, the recycled cooling water is discharged after wastewater treatment； To reduce the amount of water that needs to be added, it is necessary to have a thorough understanding of the quality of your water ； Which indicators are exceeding the limits? Implementing improvements can help reduce the amount of water that needs to be added.
Less reagent is used, with a high concentration ratio
The concentration ratio can be appropriately increased depending on the quality of the water used for replenishment. The cost of reusing water that has been discharged is high; generally, it is sent to wastewater treatment facilities
Increase the concentration ratio and treat the wastewater for desalination
Your company is a petrochemical enterprise; is it economically viable to desalinate and reuse circulating water? Could you please inform me of the specific process or equipment used for desalination?
We can utilize our newly developed technology, the “near-zero discharge technology for industrial wastewater.” This technology makes use of a recirculating water system to treat wastewater, thereby achieving zero wastewater discharge. The specific process flow is as follows: First, the circulating water system is operated at a high multiplication factor (greater than 10 times) or without discharge, with special chemicals being used to prevent scaling and corrosion in the system. A rapid water purifier is then employed to keep the turbidity of the circulating water at a certain level. This approach allows the system to operate without any discharge; only sludge is removed from the system, with no water being discharged outside. Other wastewater from the enterprise can also be used as make-up water, thereby achieving near-zero discharge of industrial wastewater. Many projects are already in operation.