Phenol removal using pulsation bubble column with inverse fluidization airlift loop reactor

Phenol and Phenolic compounds are omnipresent organics contaminants which are sent out to inbred water bodies and wastewater systems produced from the industrials processes, and it takes individual attention due to its extraordinary features such as high toxicity, carcinogenic characteristics, and ability to a gathering which affects the health of humans and the milieu. In this practical study, the integrated system of a pulsation bubble column with an inverse fluidization air loop reactor was tested to remove phenol. The test platform was made and operated with a bubble column containing at its upper end an electrical solenoid valve engaged via at least two timers, and connected to the air loop reactor consisting of an outer rectangular tube and an internal draft tube by One-way valve, where the granular activated carbon is put as an adsorbent material in the annulus region between the inner and outer tube. The effect of various parameters [molar ratio of Phenol to H2O2 (1/10, 1/15 and 1/20), airflow rate (5-20liter/min), remediation time (5-60min), initial phenol concentration (10-150) mg L-1] has been studied. Removing 90% of the contaminated phenol as a result of this study may represent a partial solution to the ecological problem.

Treatment of the oilfield-produced water and oil refinery wastewater by using inverse fluidization - A review

<p>Oilfield wastewater or produced water is a complex mixture contains oil, organic and inorganic matter and other compounds dissolved in water that ranges from fresh to brine. Discharging produced water pollute soil surface and underground water and create environment hassle. The objective of this study is to investigate and summarize the novel method of fluidization processes, used for the treatment of oilfield produced water and oil refinery wastewater. Characteristics of oilfield produced water and oil refinery wastewater from different field and various methods for treating these wastewaters are discussed. Oilfield produced water and oil refinery wastewater are strongly acidic (pH 3-4), have a high chemical oxygen demand (1200-2600 mg/L), high polyphenol content (23 mg/L) and are highly variable. Primary attention is focused on the fluidization treatment of oilfield produced water and oil refinery wastewater, mainly by inverse fluidization. Finally, areas where further research and attention are required are identified.</p>