Pilot scale reverse osmosis refinery wastewater treatment – a techno-economical and sustainability assessment

2021 ◽  
Author(s):  
Pedro D. A. Bastos ◽  
Maria António Santos ◽  
Pedro Jorge Carvalho ◽  
Svetlozar Velizarov ◽  
João G. Crespo
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Water Reuse ◽  
Sustainability Assessment ◽  
Pilot Scale ◽  
Refinery Wastewater ◽  
Wastewater Discharge ◽  
Wastewater Reclamation ◽  
Oil Refineries ◽  
The Past

Technologies for wastewater reclamation and water reuse within oil refineries have been gaining particular attention over the past decade due to legislative pressures associated with the efficient use of water resources and wastewater discharge.

Determination and occurrence of organic micropollutants in reverse osmosis treatment for advanced water reuse

2012 ◽  
Vol 66 (1) ◽  
pp. 61-71 ◽  
Author(s):  
Veronica Gomez ◽  
Katariina Majamaa ◽  
Eva Pocurull ◽  
Francesc Borrull
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Water Reuse ◽  
Treatment Plant ◽  
Organic Micropollutants ◽  
Wastewater Reclamation ◽  
North East ◽  
Incomplete Removal ◽  
Wide Range ◽  
Ro Membrane

The growing demand on water resources has increased the interest in wastewater reclamation for multiple end-use applications such as indirect and direct potable reuse. In these applications, the removal of organic micropollutants is of a greater concern than in conventional wastewater treatment. This article presents a collection of data of trace organic micropollutants in an urban wastewater treatment plant (WWTP) in North East Spain using reverse osmosis (RO) membrane treatment. The RO rejection values of the organic molecules studied with a wide range of solute size and hydrophobicity were determined. Several chromatographic methods monitoring different endocrine disrupting chemicals (EDCs), pharmaceuticals and personal care products (PPCPs) were used. Results indicated that secondary effluents from this Spanish WWTP contained most of the studied organic compounds indicating incomplete removal of organics in the conventional treatment of the plant. However, the rejection of most micropollutants was high for all three RO membrane types (low energy, high rejection, fouling resistant) tested. It was observed that some selected micropollutants were less efficiently removed (e.g. the small and polar and the more hydrophobic) and the molecular weight and membrane material influenced removal efficiencies.

Submerged Ultrafiltration for Minimizing Energy Process of Refinery Wastewater Treatment

2013 ◽  
Vol 789 ◽  
pp. 531-537
Author(s):  
Erna Yuliawati ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Wastewater Treatment ◽  
Polyvinylidene Fluoride ◽  
Membrane Surface ◽  
Suspended Solid ◽  
Hollow Fibers ◽  
Refinery Wastewater ◽  
Permeate Flux ◽  
Energy Process ◽  
Oil Refineries ◽  
And Performance

Refinery wastewater treatment is needed especially in the oil-producing arid regions such as oil refineries due to water scarcity. One of potentially applicable process to treat refinery wastewater is a submerged membrane technology. However, the application of submerged membrane systems for industrial wastewater treatment is still in its infancy due to significant variety in wastewater composition and high operational costs. Aim of this study was to investigate ultrafiltration (UF) membrane morphology and performance for refinery produced wastewater treatment. Submerged UF bundle was equipped using polyvinylidene fluoride (PVDF) hollow fibers, which added by dispersing lithium chloride monohydrate (LiCl.H2O) and titanium dioxide (TiO2). The comparison of morphological and performance tests was conducted on prepared PVDF ultrafiltration membranes. Distinctive changes were observed in membrane characteristics in term of membrane wettability, tensile testing and roughness measurement. Mean pore size and surface porosity were calculated based on permeate flux. Fouling characteristics for hydrophilic PVDF hollow fibers fouled with suspended solid matter was also investigated. Mixed liquor suspended solid (MLSS) of 3 g/L and 4.5 g/L were assessed by using submerged PVDF membrane with varied air bubble flow rates. Results showed that effect of air bubbles flow rate of 2.4 ml/min increased flux, total suspended solids (TSS) and sulfide removal of 148.82 L/m2h, 99.82 % and 89.2%, respectively due to increase of turbulence around fibers, which exerts shear stress to minimize particles deposited on membrane surface. It was concluded that submerged ultrafiltration is an available option to minimize energy process for treating such wastewater solution.

scholarly journals Application of forward osmosis membrane in nanofiltration mode to treat reverse osmosis concentrate from wastewater reclamation plants

2018 ◽  
Vol 77 (8) ◽  
pp. 1990-1997 ◽  
Author(s):  
Shahzad Jamil ◽  
Sanghyun Jeong ◽  
Saravanamuthu Vigneswaran
Keyword(s):  
Reverse Osmosis ◽  
Organic Compounds ◽  
Water Reuse ◽  
Inorganic Compounds ◽  
Forward Osmosis ◽  
Wastewater Reclamation ◽  
Permeate Flux ◽  
Acid Pretreatment ◽  
Inorganic Matter ◽  
Gac Adsorption

Abstract Reverse osmosis concentrate (ROC) from wastewater reclamation plants have high concentrations of organic and inorganic compounds, which have to be removed before its disposal. Forward osmosis (FO) and nanofiltration (NF) membranes were tested to treat the ROC for possible water reuse. This research investigated the combined and individual influence of organic and inorganic matter on the fouling of NF and FO membranes. The results revealed that the NF membrane removed most of the organic compounds and some inorganics. The study further highlighted that the FO membrane at NF mode removed the majority of the inorganic compounds and some organics from the ROC. A pretreatment of granulated activated carbon (GAC) adsorption removed 90% of the organic compounds from ROC. In addition, GAC adsorption and acid pretreatment of ROC improved the net water permeate flux by 17% when an FO membrane was used in the NF system. Acid treatment (by bringing the pH down to 5) helped to remove inorganic ions. Therefore, the resultant permeate can be recycled back to the RO water reclamation plant to improve its efficiency.

Survey on production quality of electrodialysis reversal and reverse osmosis on municipal wastewater desalination

2012 ◽  
Vol 66 (10) ◽  
pp. 2185-2193 ◽  
Author(s):  
Yi-Che Hsu ◽  
Hsin-Hsu Huang ◽  
Yu-De Huang ◽  
Ching-Ping Chu ◽  
Yu-Jen Chung ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Treatment Plant ◽  
Municipal Wastewater Treatment ◽  
Wastewater Reclamation ◽  
Sand Filter ◽  
Monovalent Ions

Water shortage has become an emerging environmental issue. Reclamation of the effluent from municipal wastewater treatment plant (WWTP) is feasible for meeting the growth of water requirement from industries. In this study, the results of a pilot-plant setting in Futian wastewater treatment plant (Taichung, Taiwan) were presented. Two processes, sand filter – ultrafiltration – reverse osmosis (SF-UF-RO) and sand filter – electrodialysis reversal (SF-EDR), were operated in parallel to evaluate their stability and filtrate quality. It has been noticed that EDR could accept inflow with worse quality and thus required less pretreatment compared with RO. During the operation, EDR required more frequent chemical cleaning (every 3 weeks) than RO did (every 3 months). For the filtrate quality, the desalination efficiency of SF-EDR ranged from 75 to 80% in continuous operation mode, while the conductivity ranged from 100 to 120 μS/cm, with turbidity at 0.8 NTU and total organic carbon at 1.3 mg/L. SF-EDR was less efficient in desalinating the multivalent ions than SF-UF-RO was. However for the monovalent ions, the performances of the two processes were similar to each other. Noticeably, total trihalomethanes in SF-EDR filtrate was lower than that of SF-UF-RO, probably because the polarization effects formed on the concentrated side of the EDR membrane were not significant. At the end of this study, cost analysis was also conducted to compare the capital requirement of building a full-scale wastewater reclamation plant using the two processes. The results showed that using SF-EDR may cost less than using SF-UF-RO, if the users were to accept the filtrate quality of SF-EDR.

Pilot study of SBR biological treatment and microfiltration for reclamation and reuse of municipal wastewater

2000 ◽  
Vol 42 (1-2) ◽  
pp. 263-268 ◽  
Author(s):  
R. Messalem ◽  
A. Brenner ◽  
S. Shandalov ◽  
Y. Leroux ◽  
P. Uzlaner ◽  
...  
Keyword(s):  
Water Reuse ◽  
Municipal Wastewater ◽  
Batch Reactor ◽  
Groundwater Resources ◽  
Oxygen Demand ◽  
Pilot Scale ◽  
Fecal Coliforms ◽  
Wastewater Reclamation ◽  
Two Stage ◽  
Stage Scheme

In Israel the shortage of water and concern for the quality of groundwater resources have led to an awareness that a national wastewater reclamation program must be developed. Such a program could cover a major part of the agricultural water demand and could facilitate disposal of effluents without health hazards or environmental problems. A two-stage pilot-scale system comprising secondary sequencing batch reactor (SBR) treatment and tertiary microfiltration was operated for the treatment of Beer-Sheva municipal wastewater. The self-cleaning, continuous microfiltration system comprised a filter module made up of hollow fiber microporous membranes, with a pore size distribution of less than 0.1 μm, encapsulated into a bundle. The unit, which has a nominal filtration area of 4 m2, can treat 4–5 m3 of sewage per day, at a nominal rate of about 500 L/h. SBR treatment of the raw sewage produced an effluent with a biochemical oxygen demand (BOD) of <20 mg/L and total suspended solids (TSS) of <20 mg/L. Further treatment by microfiltration resulted in a BOD <5 mg/L, TSS <1 mg/L and turbidity <0.2 nephelometric turbidity units (NTU). Bacterial counts showed 6-log removal of coliforms and fecal coliforms. These results indicate that the two-stage scheme is capable of producing an effluent that meets or even surpasses the requirements for unrestricted water reuse for agriculture.

scholarly journals Municipal Wastewater Reclamation and Water Reuse for Irrigation by Membrane Processes

2019 ◽  
Vol 33 (3) ◽  
pp. 417-425 ◽  
Author(s):  
Davor Dolar ◽  
Marko Racar ◽  
Krešimir Košutić
Keyword(s):  
Reverse Osmosis ◽  
Water Reuse ◽  
Municipal Wastewater ◽  
Produced Water ◽  
Oxygen Demand ◽  
Agricultural Irrigation ◽  
Moderate Degree ◽  
Wastewater Reclamation ◽  
Membrane Conductivity ◽  
Severe Degree

Municipal wastewater was treated by membrane bioreactor (MBR), and the obtained<br /> MBR effluent was then treated by reverse osmosis (RO), and nanofiltration (NF). The MBR effluent was additionally treated by reverse osmosis (XLE) and nanofiltration (NF90 and NF270) membranes. RO and NF permeate output streams were assessed for their utilization in agricultural irrigation. The MBR used a hollow fiber ZeeWeed 1 ultrafiltration<br /> membrane. Conductivity, turbidity, total suspended solids, chemical oxygen demand, and dissolved organic carbon were rejected by MBR with average values of 10 %, 100 %, 99.8 %, 96 %, and 88 %, respectively. Further treatment with RO/NF membranes showed additional reduction in all measured parameters. According to results, MBR effluent belongs to the ‘slight to moderate’ degree of restriction on use due to conductivity, chloride, and sodium concentrations. RO/NF permeate, based on all parameters, belongs<br /> to the ‘none’ degree of restriction on use, except on sodium adsorption ratio (SAR), where it belongs to the ‘severe’ degree of restriction on use. Based on conductivity and SAR parameters, assessment of produced water quality obtained by blending of two effluents<br /> (50 % of MBR and 50 % of NF270 permeate) resulted in an output stream appropriate for irrigation, proving that the blending of output streams in this ratio is a good strategy for agricultural irrigation.

Car wash wastewater treatment and water reuse – a case study

2013 ◽  
Vol 67 (1) ◽  
pp. 82-88 ◽  
Author(s):  
R. N. Zaneti ◽  
R. Etchepare ◽  
J. Rubio
Keyword(s):  
Wastewater Treatment ◽  
Water Reuse ◽  
Risk Model ◽  
Reclaimed Water ◽  
Wastewater Reclamation ◽  
Aesthetic Quality ◽  
Flotation Process ◽  
Chemical Corrosion ◽  
Car Wash ◽  
Car Wash Wastewater

Recent features of a car wash wastewater reclamation system and results from a full-scale car wash wastewater treatment and recycling process are reported. This upcoming technology comprises a new flocculation–column flotation process, sand filtration, and a final chlorination. A water usage and savings audit (22 weeks) showed that almost 70% reclamation was possible, and fewer than 40 L of fresh water per wash were needed. Wastewater and reclaimed water were characterized by monitoring chemical, physicochemical and biological parameters. Results were discussed in terms of aesthetic quality (water clarification and odour), health (pathological) and chemical (corrosion and scaling) risks. A microbiological risk model was applied and the Escherichia coli proposed criterion for car wash reclaimed water is 200 CFU 100 mL−1. It is believed that the discussions on car wash wastewater reclamation criteria may assist institutions to create laws in Brazil and elsewhere.

scholarly journals Heterotrophic nitrification and aerobic denitrification using pure-culture bacteria for wastewater treatment

2018 ◽  
Vol 9 (1) ◽  
pp. 10-17 ◽  
Author(s):  
W. Khanichaidecha ◽  
A. Nakaruk ◽  
K. Ratananikom ◽  
R. Eamrat ◽  
F. Kazama
Keyword(s):  
Wastewater Treatment ◽  
Nitrogen Removal ◽  
Pure Culture ◽  
Water Reuse ◽  
Heterotrophic Nitrification ◽  
Aerobic Denitrification ◽  
Nitrification Rate ◽  
Wastewater Reclamation ◽  
Treatment Unit ◽  
Term Operation

Abstract Due to the high water demand and unsustainable water resource, wastewater reclamation and wastewater treatment prior to discharge have become current important issues. Various treatment technologies, such as biological processes, have been improved as alternatives. In this study, the biological nitrogen removal system using pure-culture Bacillus licheniformis was developed and used as an internal treatment unit in an aquarium to improve the effluent quality for water reuse. The efficiencies for NH4-N and total nitrogen (TN) removal and the quality of treated water verified the occurrence of heterotrophic nitrification and aerobic denitrification; the nitrification rate was 0.84 mg/L-h and the denitrification rate was 0.62 mg/L-h. The maximal NH4-N and TN removal efficiencies were approximately 73% at the influent NH4-N of 30 mg/L. However, the other competitive heterotroph of Pseudomonas sp. was observed, which resulted in dramatically decreasing efficiencies and an enlarged ratio of carbon consumption and nitrogen removal. Although the overall performance of the B. licheniformis system was lower than the system using mixed-culture nitrifying and heterotrophic denitrifying microorganisms, the advantages of the B. licheniformis system were ease of operation and the fact that it is a land-limited treatment system. The research is ongoing to enhance performance and maintain excellent efficiency in a long-term operation.

Sign in / Sign up

Export Citation Format

Share Document