scholarly journals DEVELOPMENT OF ANTIFOULING POLYETHERSULFONE (PES)-NANO ZnO MEMBRANE FOR PRODUCED WATER TREATMENT

2018 ◽  
Vol 80 (3-2) ◽  
Author(s):  
Tutuk Djoko Kusworo ◽  
Nita Aryanti ◽  
Qudratun Qudratun ◽  
Via Dolorosa Tambunan ◽  
Natalia Rosa Simanjuntak
Keyword(s):  
Water Treatment ◽  
Oil And Gas ◽  
Produced Water ◽  
Waste Water Treatment ◽  
Environmental Stability ◽  
Phase Method ◽  
Separation Performance ◽  
Permeate Flux ◽  
Nano Zno ◽  
The Right

Produced water is the side product of the oil and gas processing. This water is different from any common water because it contains the dangerous chemical substances and matters in the oil and gas. The usage of produced water and unprocessed waste of produced water contains a lot of dangerous substances that can endanger the environmental stability. The right processing is all that it needs to make produced water that is drinkable or usable. The membrane technology is one of the alternative waste water treatment technologies. But, as in the usage, it still lacks in the field of fouling and cannot fulfilled the specification of usable water. Thus, this becomes the reason that bases this research. In this paper, there will be made a polyethersulfone membrane with an inversion phase method and an addition of Nano-antifouling compound, ZnO. The experimental results show that the TDS value of produced water decreased from 6600 into 1500 mg/L. Nano ZnO addition of 1.5 wt-% increase the permeate flux from 28 to 43 L/m2.hr. The UV irradiation on the membrane increase the initial flux from 28 to 48 L/m2.hr and also increase the TDS rejection from 16 to 25%. This shows that by using Polyethersulfone (PES)-ZnO membrane, we can increase the separation performance. Hence, this method is suitable for processing the produced water into usable water.

scholarly journals Performance Comparison of Control Strategies for Plant-Wide Produced Water Treatment

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 418
Author(s):  
Leif Hansen ◽  
Mads Valentin Bram ◽  
Simon Pedersen ◽  
Zhenyu Yang
Keyword(s):  
Water Treatment ◽  
Oil And Gas ◽  
Performance Metrics ◽  
Produced Water ◽  
Control Strategies ◽  
Oil And Gas Industry ◽  
Performance Comparison ◽  
Separation Performance ◽  
Concentration Variance ◽  
Produced Water Treatment

Offshore produced water treatment (PWT) accounts for cleaning the largest waste stream in the offshore oil and gas industry. If this separation process is not properly executed, large amounts of oil are often directly discharged into the ocean. This work extends two grey-box models of a three-phase gravity separator and a deoiling hydrocyclone, and combines them into a single plant-wide model for testing PWT control solutions in a typical process configuration. In simulations, three known control solutions—proportional-integral-derivative (PID) control, H∞ control, and model predictive control (MPC)—are compared on the combined model to evaluate the separation performance. The results of the simulations clearly show what performance metrics each controller excels at, such as valve wear, oil discharge, oil-in-water (OiW) concentration variance, and constraint violations. The work incentivizes future control to be based on operational policy, such as defining boundary constraints and weights on oil discharge, rather than maintaining conventional intermediate performance metrics, such as water level in the separation and pressure drop ratio (PDR) over the hydrocyclone.

scholarly journals Hydrophylicity Enhancement of Modified Cellulose Acetate Membrane to Improve the Membrane Performance in Produced Water Treatment

2018 ◽  
Vol 156 ◽  
pp. 08003 ◽  
Author(s):  
Tutuk Djoko Kusworo ◽  
Danny Soetrisnanto ◽  
Cynthia Santoso ◽  
Tyas Dwi Payanti ◽  
Dani Puji Utomo
Keyword(s):  
Water Treatment ◽  
Produced Water ◽  
Uv Light ◽  
Light Exposure ◽  
Membrane Surface ◽  
Asymmetric Structure ◽  
Dense Layer ◽  
Cellulose Acetate Membrane ◽  
Permeate Flux ◽  
Produced Water Treatment

Produced water is a wastewater generated from petroleum industry with high concentration of pollutants such as Total Dissolved Solid, Organic content, and Oil and grease. Membrane technology has been currently applied for produced water treatment due to its efficiency, compact, mild and clean process. The main problem of produced water using membrane is fouling on the membrane surface which causes on low permeate productivity. This paper is majority focused on the improvement of anti-fouling performance through several modifications to increase CA membrane hydrophilicity. The membrane was prepared by formulating the dope solution consists of 18 wt-% CA polymer, acetone, and PEG additive (3 wt-%, 5 wt-%, and 7 wt-%). The membranes are casted using NIPS method and being irradiated under UV light exposure. The SEM images show that parepared membrane has asymmetric structure consist of dense layer, intermediete layer, and finger-like support layer. The filtration test shows that PEG addition increase the membrane hydrophilicity and the permeate flux increases. UV light exposure on the membrane improves the membrane stability and hydrophilicity. The imrpovement of membrane anti-fouling performance is essential to achieve the higher productivity without lowering its pollutants rejection.

scholarly journals Zwitterion-Modified Ultrafiltration Membranes for Permian Basin Produced Water Pretreatment

Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1710 ◽  
Author(s):  
Mirjalal Babayev ◽  
Hongbo Du ◽  
Venkata S. V. Botlaguduru ◽  
Raghava R. Kommalapati
Keyword(s):  
Membrane Fouling ◽  
Oil And Gas ◽  
Produced Water ◽  
Forward Osmosis ◽  
Dip Coating ◽  
Permeate Flux ◽  
Permian Basin ◽  
Water Pretreatment ◽  
Uf Membranes ◽  
Surface Modified

Unconventional oil and gas extraction generates large quantities of produced water (PW). Due to strict environmental regulations, it is important to recover and reuse PW. In this study, commercial polyethersulfone (PES) ultrafiltration (UF) membranes were surface-modified with zwitterionic polymer 3-(3,4-Dihydroxyphenyl)-l-alanine (l-DOPA) solution to alleviate membrane fouling during the ultrafiltration of shale oil PW of the Permian Basin. UF membranes were coated in l-DOPA solution by using a dip coating technique. Membrane characterization tests confirmed successful l-DOPA coating on UF membranes. While performing the experiments, permeate flux behaviors of the uncoated and coated membranes and antifouling resistance of the zwitterionic coating were evaluated. Among the coated UF membranes with varying coating times from one day to three days, the three-day coated UF membrane showed a good flux performance and the highest fouling resistance. The flux reduced by 38.4% for the uncoated membrane, while the reduction was 16% for the three-day coated membrane after the 5 h ultrafiltration of PW. Both improvements of the flux performance and recovery ratio are attributed to a negatively-charged surface developed on the membranes after the zwitterionic coating. The UF pretreatment also improved the flux behavior of the later forward osmosis (FO) process for PW treatment.

scholarly journals Online Backwash Optimization of Membrane Filtration for Produced Water Treatment

Membranes ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 68 ◽  
Author(s):  
Kasper L. Jepsen ◽  
Mads V. Bram ◽  
Leif Hansen ◽  
Zhenyu Yang ◽  
Steven M. Ø. Lauridsen
Keyword(s):  
Water Treatment ◽  
Membrane Filtration ◽  
Oil And Gas ◽  
New Technologies ◽  
Produced Water ◽  
Removal Rate ◽  
Scheduling Algorithm ◽  
Produced Water Treatment ◽  
Treatment Train ◽  
Offshore Oil And Gas

In the offshore oil and gas sector, produced water is discharged into the sea, but increasing environmental concerns and stricter governmental regulations require new technologies to be considered. Membrane filtration is a promising technology to improve separation, but fouling of the membranes causes a significant reduction in flow capacity. To reduce fouling, optimization of the backwashing parameters is given much attention. Comprehensive and time-consuming experiments are used to model the effect of backwashing, but most methods neglect time varying features present in the offshore produced water treatment train. In this paper, a backwashing scheduling algorithm is proposed, which dynamically selects the filtration and backwashing durations to maximize the average net permeate production. The proposed algorithm is tested on a lab-scaled pilot plant, where it was able to adapt as irreversible fouling accumulated and the OiW concentration changed. The paper concludes that the removal rate of oil fouling was observed to be dependent on the rate at which the backwashing pressure could be established. As the proposed method online adapts to the current conditions, it can improve the filtration capacity compared to cases with constant backwashing and filtration durations throughout the lifetime of the facilities.

scholarly journals Control-Oriented Modeling and Experimental Validation of a Deoiling Hydrocyclone System

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1010
Author(s):  
Mads V. Bram ◽  
Stefan Jespersen ◽  
Dennis S. Hansen ◽  
Zhenyu Yang
Keyword(s):  
Oil And Gas ◽  
Produced Water ◽  
Environmental Pollutants ◽  
Gas Production ◽  
Separation Performance ◽  
Test Bed ◽  
Oil And Gas Production ◽  
Modeling Methodology ◽  
Offshore Oil And Gas ◽  
Separation Equipment

As the treated water from offshore oil and gas production is discharged to the surrounding sea, there is an incentive to improve the performance of the offshore produced water treatment, to reduce the environmental pollutants to the sea. Regulations determine both the maximum allowed oil concentration and the total annual quantity. It is reasonable to assume that when better separation equipment or methods are developed, the regulation will become more strict, and force other producers to follow the trend towards zero harmful discharge. This paper develops and validates a hydrocyclone model to be used as a test-bed for improved control designs. The modeling methodology uses a combination of first-principles to define model structure and data-driven parameter identification. To evaluate and validate the separation performance, real-time fluorescence-based oil-in-water (OiW) concentration monitors, with dual redundancy, are installed and used on sidestreams of a modified pilot plant. The installed monitors measure the inlet and outlet OiW concentration of the tested hydrocyclone. The proposed control-oriented hydrocyclone model proved to be a reasonable candidate for predicting the hydrocyclone separation performance.

scholarly journals Review of technologies for oil and gas produced water treatment

2009 ◽  
Vol 170 (2-3) ◽  
pp. 530-551 ◽  
Author(s):  
Ahmadun Fakhru’l-Razi ◽  
Alireza Pendashteh ◽  
Luqman Chuah Abdullah ◽  
Dayang Radiah Awang Biak ◽  
Sayed Siavash Madaeni ◽  
...  
Keyword(s):  
Water Treatment ◽  
Oil And Gas ◽  
Produced Water ◽  
Produced Water Treatment
Sign in / Sign up

Export Citation Format

Share Document