Air Flotation Method in the Treatment of Oily Wastewater Application of its Progress

With the social development, environmental pollution problems are emerging, especially oily wastewater discharges, it has been seriously polluted our water, therefore, the oily wastewater treatment technology research become a research hotspot. This paper briefly describes the characteristics of oily waste water, water purification technology and flotation theory, and flotation technology in the oily wastewater treatment applications were reviewed, Finally, the future prospects for the development flotation method.

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Study on Mechanism of Removing the Organic Matter in Heavy Oil Sewage by the Electric Flocculation Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.535-537.2201 ◽

2012 ◽

Vol 535-537 ◽

pp. 2201-2208

Author(s):

Yong Wang ◽

Jie Nian Jie ◽

Zhi Yong Li ◽

Li Guo Wang ◽

Jiang Wu ◽

...

Keyword(s):

Organic Matter ◽

Wastewater Treatment ◽

Heavy Oil ◽

Tin Dioxide ◽

Electrochemical Treatment ◽

Oily Wastewater ◽

Treatment Technology ◽

Before And After ◽

Treatment Technologies ◽

Oily Wastewater Treatment

Oily sewage is one of the wastes produced in the oil industry production process and its quantity has been increasing year by year, which influences the environment and human health severely. Electric flocculation method is one of the wide application electrochemical treatment technologies for the oily wastewater treatment at home and abroad, which has higher efficiency than other technologies at the aspect of the organic pollutants degradation. A simulative experiment device dealing with heavy oil sewage by the electric flocculation method has been designed in this paper. The mechanism of the electric flocculation method in removing organic matter of the heavy oil sewage by analyzing the change of the composition and content of the organic matter in water samples before and after the process of the electric flocculation has been studied. Research results show: the carbon/tin dioxide electrode is better than the carbon/ ruthenium dioxide electrode in removing organic matter; most alkanes matters in the oily wastewater have been removed in the dispersing oil form by the electric flocculation; as the current density increases, the types and quantity of the response organic matter can be improved while types of the new synthetic organics increase. At the same time, this paper provides a theory support in specific optimization of the electricity flocculation flotation in oily wastewater treatment technology and process.

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COAGULATION/FLOCCULATION PROCESS FOR OILY WASTEWATER TREATMENT

Journal of Engineering and Sustainable Development ◽

10.31272/jeasd.conf.2.3.6 ◽

2021 ◽

Vol 25 (Special) ◽

pp. 3-68-3-76

Author(s):

Hussein A. Jabbar ◽

◽

Mohammed J. Alatabe ◽

Keyword(s):

Waste Water ◽

Wastewater Treatment ◽

Aluminum Sulfate ◽

Low Cost ◽

Suspended Solid ◽

Ferric Sulfate ◽

Oily Wastewater ◽

Dose Concentration ◽

Oily Waste ◽

Oily Wastewater Treatment

Oily wastewater is one of the most dangerous forms of environmental pollution, it is large amount of water that is wasted petrochemical industries, oily waste water contains oil, suspended solids, and dissolved solids. The study investigates the treatment of real oily waste water that was collected from al-Dura refinery (Iraq) /Middle Refineries Company from oil and suspended solid contamination for re-use and environmental consideration using coagulation and flocculation processes. Coagulation /flocculation is a common method used as primary purification processes to oily wastewater treatment due to its usability, performance, and low cost. Coagulation experiments were completed by the Jar Test device. The additives coagulants of ferric sulfate and aluminum sulfate were in a range about (10- 25) ppm, as well as polyelectrolyte- (polyacrylamide) as an additional flocculent in the range (1-4) ppm. The results show that ferric sulfate was more efficient in removing turbidity than Aluminum sulfate under the same conditions, with the best removal of turbidity at dose concentration 20 ppm of Ferric sulfate and a flocculent dose concentration of 3 ppm of polyacrylamide, also with oil content decreasing from 288 ppm to 14.4 ppm and the turbidity removal from 187 to 8.5 NTU.

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Research Progress and Prospects of Marine Oily Wastewater Treatment: A Review

Water ◽

10.3390/w11122517 ◽

2019 ◽

Vol 11 (12) ◽

pp. 2517 ◽

Cited By ~ 3

Author(s):

Meiling Han ◽

Jin Zhang ◽

Wen Chu ◽

Jiahao Chen ◽

Gongfu Zhou

Keyword(s):

Wastewater Treatment ◽

Environmental Protection ◽

High Efficiency ◽

Combined Treatment ◽

Research Progress ◽

Oily Wastewater ◽

Treatment Technology ◽

Physical Treatment ◽

Processing Technologies ◽

Oily Wastewater Treatment

Oily wastewater from shipping waste and marine accidents have seriously polluted the marine environment and brought great harm to human production and health. With the increasing awareness of environmental protection, the treatment of marine oily wastewater has attracted extensive attention from the international community. Marine oily wastewater has various forms and complex components, so its treatment technology faces great challenges. Sources, types, supervision, and treatment of marine oily wastewater are introduced in this paper. The research progress of marine and ship’s oily wastewater treatment technologies in recent years are reviewed from the perspectives of physical treatment, chemical treatment, biological treatment, and combined treatment, respectively. Principles and characteristics of all kinds of technologies were analyzed. In addition, this paper shows that multiple processing technologies used in combination for the purpose of high efficiency, environmental protection, economy, and energy conservation are the future development trend.

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