Is the oil obtained through chemical cleaning of the oil storage tanks in large tank farms at ports soluble oil?
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Our factory is a large warehousing company at a city port, mainly storing base oils, crude oil, and chemical oils. When changing the type of oil stored, chemical cleaning of the storage tanks is required, which generates approximately 20 to 50 tons of wastewater. In what form do the oily substances in the wastewater resulting from this chemical cleaning exist? Is it floating oil, dispersed oil, emulsified oil, or soluble oil?
How much wastewater of 20-50 tons is generated from cleaning tanks of what size? Generally, the vehicles transport the waste water to a specialized wastewater treatment plant in the park for processing.
Yes, that’s right; it’s currently being taken away for shipment. Tanks with a capacity of several thousand liters. It is now required that the pre-treatment within the tank area meet Tianjin’s municipal standard level 3, with a COD level of less than 500 and oil content of less than 15. Chemical cleaning water is set to be fed into the system for treatment; at present, feasibility plans are being considered based on the solubility of the oil
There are all three states: floating oil, dispersed oil, and emulsified oil! To handle it, several processing steps need to be used in combination in order to achieve stable compliance with standards.
Thank you. Could you explain in detail what kind of process combination approach is involved?