What is the best way to treat wastewater from the crude benzene hydrogenation process?
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What is the best way to treat wastewater from the crude benzene hydrogenation process?
For crude benzene treatment, wastewater containing C6, C7, C8, etc. can be treated using biological methods
Acid vapor stripping can be used to treat both crude benzene wastewater and hydrogenation wastewater
How should the gas phase after acid water stripping be treated?
The wastewater in hydrogenation units generally contains sulfides and ammonia as the main components, along with small amounts of small-molecule hydrocarbons and polar organic compounds. If the plant is equipped with an acidic water stripping unit, hydrogen sulfide and ammonia can be recovered through stripping, thereby reducing the levels of sulfides and ammonia in the wastewater to levels that are easier to handle, which makes subsequent biochemical treatment simpler. If there is no acid water treatment stripping unit, strict treatment of sulfides may be required, as such water releases large amounts of hydrogen sulfide in neutral and acidic conditions, which is dangerous and malodorous. This may require a professional water treatment system as a pre-treatment unit before biochemical treatment.
The hydrodesulfurization wastewater from crude benzene contains high levels of sulfides and ammonia nitrogen; a stripping tower is used at the initial stage, and after stripping, the wastewater undergoes physicochemical treatment to reduce the levels of ammonia nitrogen and sulfides before being sent for biological treatment.
Acid vapor stripping can be used to treat both crude benzene wastewater and hydrogenation wastewater. Professional cleaning services are available for various benzene storage tanks such as crude benzene tanks, tar tanks, naphthalene tanks, oil washing tanks, and more. With over a decade of extensive experience, professional staff, advanced equipment, and the necessary certifications for tank cleaning, we place safety first and integrity at the core of our operations; a fee is charged for our services as intermediaries. 15233883873