scholarly journals A Mini-Review of Enhancing Ultrafiltration Membranes (UF) for Wastewater Treatment: Performance and Stability

2021 ◽  
Vol 5 (3) ◽  
pp. 34
Author(s):  
Eman Sh. Awad ◽  
Tamara M. Sabirova ◽  
Natalia A. Tretyakova ◽  
Qusay F. Alsalhy ◽  
Alberto Figoli ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
High Efficiency ◽  
Oil Pollution ◽  
Membrane Surface ◽  
Multiwall Carbon Nanotubes ◽  
Petroleum Products ◽  
Oily Wastewater ◽  
Polymer Blending ◽  
Uf Membranes ◽  
Insight Into

The scarcity of freshwater resources in many regions of the world has contributed to the emergence of various technologies for treating and recovering wastewater for reuse in industry, agriculture, and households. Deep wastewater treatment from oils and petroleum products is one of the difficult tasks that must be solved. Among the known technologies, UF membranes have found wide industrial application with high efficiency in removing various pollutants from wastewater. It is shown that the search for and development of highly efficient, durable, and resistant to oil pollution UF membranes for the treatment of oily wastewater is an urgent research task. The key parameters to improve the performance of UF membranes are by enhancing wettability (hydrophilicity) and the antifouling behavior of membranes. In this review, we highlight the using of ultrafiltration (UF) membranes primarily to treat oily wastewater. Various methods of polymer alterations of the UF membrane were studied to improve hydrophilicity, the ability of antifouling the membrane, and oil rejection, including polymer blending, membrane surface modification, and the mixed membrane matrix. The influence of the type and composition of the hydrophilic additives of nanoparticles (e.g., Multiwall carbon nanotubes (MWCNT), graphene oxide (GO), zinc oxide (ZnO), and titanium dioxide (TiO2), etc.) was investigated. The review further provides an insight into the removal efficiency percent.

Oil Pollution and Study Progess on Removal Technology

2011 ◽  
Vol 179-180 ◽  
pp. 768-772
Author(s):  
Ji Hong Zhou ◽  
Wen Xiang Xia ◽  
Jin Cheng Li
Keyword(s):  
High Efficiency ◽  
Oil Pollution ◽  
Petroleum Products ◽  
Oily Wastewater ◽  
Oil Removal ◽  
Wastewater Discharge ◽  
Secondary Pollution ◽  
Investment Resource ◽  
Removal Technology ◽  
Technique Development

The pollution accident caused by leak and discharge of the exploitation, smelting, use and transportation of oil, and oily wastewater discharge, wastewater irrigation, and volatilization of petroleum products, falling of product of incomplete combustion and so on can cause a series of problems of oil pollution. The damage, the removal methods of the oil pollution and the trends of technique development are introduced in this paper, and indicate that the high efficiency and low investment, resource and no secondary pollution will be the developing trend of oil removal technology in the future.

Research on the treatment of oily wastewater by coalescence technology

2015 ◽  
Vol 72 (9) ◽  
pp. 1588-1593
Author(s):  
Chunbiao Li ◽  
Meng Li ◽  
Xiaoyan Zhang
Keyword(s):  
Wastewater Treatment ◽  
High Efficiency ◽  
Coarse Graining ◽  
Filter Material ◽  
Operating Conditions ◽  
Ceramic Filter ◽  
Coarse Grained ◽  
Optimum Operating ◽  
Oily Wastewater ◽  
Oily Wastewater Treatment

Recently, oily wastewater treatment has become a hot research topic across the world. Among the common methods for oily wastewater treatment, coalescence is one of the most promising technologies because of its high efficiency, easy operation, smaller land coverage, and lower investment and operational costs. In this research, a new type of ceramic filter material was chosen to investigate the effects of some key factors including particle size of coarse-grained materials, temperature, inflow direction and inflow velocity of the reactor. The aim was to explore the optimum operating conditions for coarse-graining. Results of a series of tests showed that the optimum operating conditions were a combination of grain size 1–3 mm, water temperature 35 °C and up-flow velocity 8 m/h, which promised a maximum oil removal efficiency of 93%.

scholarly journals IMPROVEMENT OF TECHNICAL MEANS OF CONTROL SYSTEMS AND PROTECTION OF THE MARINE ENVIRONMENT FROM OIL POLLUTION

2021 ◽  
pp. 63-70
Author(s):  
V.I. Istomin ◽  
◽  
S.E. Tverskaya ◽  
Keyword(s):  
Control Systems ◽  
Marine Environment ◽  
Water Purification ◽  
High Efficiency ◽  
Oil Pollution ◽  
Petroleum Products ◽  
Environment Pollution ◽  
Separation System ◽  
High Quality

Data on environmental monitoring and the marine environment pollution by oil are presented and new highly efficient technical means of oil-containing water purification systems are developed, which have high quality of oil-containing water purification, a long service life of filter elements, simple design and operation. The combined separation system for the purification of oily waters has a high efficiency and provides the purification of oily waters to a concentration of petroleum products lower than 5 million-1. The design of the regenerated filter and separator with granular loading ensures the regeneration of filter elements without disassembling and replacing them, which significantly simplifies the maintenance and operation of the system.

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

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2517 ◽  
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.

TMP wastewater treatment, including a biological high-efficiency compact reactor

2000 ◽  
Vol 15 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Elisabeth Magnus ◽  
Georg E Carlberg ◽  
Hans Hoel
Keyword(s):  
Wastewater Treatment ◽  
High Efficiency

Monitoring of Petroleum-Related Environmental Contamination Using Fluorescence Fingerprinting

2006 ◽  
Vol 1 (2) ◽  
Author(s):  
P. Literathy ◽  
M. Quinn
Keyword(s):  
Environmental Contamination ◽  
Statistical Evaluation ◽  
Oil Pollution ◽  
Emission Spectra ◽  
Cost Effective ◽  
Petroleum Products ◽  
Danube River ◽  
Aromatic Components ◽  
Analytical Approaches

Petroleum and its refined products are considered the most complex contaminants frequently impacting the environment in significant quantities. They have heterogeneous chemical composition and alterations occur during environmental weathering. No single analytical method exists to characterize the petroleum-related environmental contamination. For monitoring, the analytical approaches include gravimetric, spectrometric and chromatographic methods having significant differences in their selectivity, sensitivity and cost-effectiveness. Recording fluorescence fingerprints of the cyclohexane extracts of the water, suspended solids, sediment or soil samples and applying appropriate statistical evaluation (e.g. by correlating the concatenated emission spectra of the fingerprints of the samples with arbitrary standards (e.g. petroleum products)), provides a powerful, cost-effective analytical tool for characterization of the type of oil pollution and detecting the most harmful aromatic components of the petroleum contaminated matrix. For monitoring purposes, the level of the contamination can be expressed as the equivalent concentration of an appropriate characteristic standard, based on the fluorescence intensities at the relevant characteristic wavelengths. These procedures are demonstrated in the monitoring of petroleum-related pollution in the water and suspended sediment in the Danube river basin

scholarly journals Tanning Wastewater Treatment by Ultrafiltration: Process Efficiency and Fouling Behavior

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 461
Author(s):  
Fu Yang ◽  
Zhengkun Huang ◽  
Jun Huang ◽  
Chongde Wu ◽  
Rongqing Zhou ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Shear Rate ◽  
Membrane Surface ◽  
Filtration Efficiency ◽  
Operating Conditions ◽  
Process Efficiency ◽  
Transmembrane Pressure ◽  
Leather Industry ◽  
Pore Blocking ◽  
The Impact

Ultrafiltration is a promising, environment-friendly alternative to the current physicochemical-based tannery wastewater treatment. In this work, ultrafiltration was employed to treat the tanning wastewater as an upstream process of the Zero Liquid Discharge (ZLD) system in the leather industry. The filtration efficiency and fouling behaviors were analyzed to assess the impact of membrane material and operating conditions (shear rate on the membrane surface and transmembrane pressure). The models of resistance-in-series, fouling propensity, and pore blocking were used to provide a comprehensive analysis of such a process. The results show that the process efficiency is strongly dependent on the operating conditions, while the membranes of either PES or PVDF showed similar filtration performance and fouling behavior. Reversible resistance was the main obstacle for such process. Cake formation was the main pore blocking mechanism during such process, which was independent on the operating conditions and membrane materials. The increase in shear rate significantly increased the steady-state permeation flux, thus, the filtration efficiency was improved, which resulted from both the reduction in reversible resistance and the slow-down of fouling layer accumulate rate. This is the first time that the fouling behaviors of tanning wastewater ultrafiltration were comprehensively evaluated, thus providing crucial guidance for further scientific investigation and industrial application.

Novel silica sand hollow fibre ceramic membrane for oily wastewater treatment

2021 ◽  
Vol 9 (1) ◽  
pp. 104975
Author(s):  
Saber Abdulhamid Alftessi ◽  
Mohd. Hafiz Dzarfan Othman ◽  
Mohd. Ridhwan Adam ◽  
Twibi Mohamed Farag ◽  
Ahmad Fauzi Ismail ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Ceramic Membrane ◽  
Hollow Fibre ◽  
Silica Sand ◽  
Oily Wastewater ◽  
Oily Wastewater Treatment
Sign in / Sign up

Export Citation Format

Share Document