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

Abstract

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.

Comparison of different cultures and culturing conditions for the biological deterioration of organic load from real saline bilge wastewater: microbial diversity insights and ecotoxicity assessment

“…The main wastewater purification step is secondary treatment and it is the stage where optimization of the selected technique can importantly decrease the cost of tertiary treatment, thereby providing motivation for adequate treatment of the wastewater. Biological treatment is usually selected as a low cost yet efficient secondary treatment process, able to achieve high performance, but easily disrupted by the complexity of the wastewater and its alterations in composition over time (Han et al 2019). Apart from the high Chemical Oxygen Demand (COD) value (from 3 to 15 g L −1 ) that bilge wastewater presents (Han et al 2019) bilge water is usually highly saline, which may inhibit biological activity, leading to poor biological treatment performance (Lefebvre and Moletta 2006).…”

Oily Wastewater Treatment Using Polyamide Thin Film Composite Membrane Technology

“…Physical and chemical oily wastewater characteristics depend mainly on the type of edible oil industry where high organic and inorganic pollutants are varied. Numerous methods have been applied for treating pollution in edible oil wastewater [5][6][7][8][9]. Traditional techniques, such as coagulation/flocculation, adsorption, dissolved air flotation (DAF), are normally insufficiently effective to solve the problem, particularly when the oil particles are finely dispersed [10][11][12][13].…”

Oily Wastewater Treatment: Overview of Conventional and Modern Methods, Challenges, and Future Opportunities

“…Some of the region-specific limits are being listed in Table 1. Thus, the development of an effective strategy and less expensive means to treat oily wastewater is a crucial environmental need [16]. of the system, the pressure must be reduced to atmospheric conditions with an excess amount of dissolved gas [31].…”