Increasing water recovery rate of membrane hybrid process on the petrochemical wastewater treatment

Venzke, Carla Denize; Giacobbo, Alexandre; Ferreira, Jane Zoppas; Bernardes, Andréa Moura; Rodrigues, Marco Antônio Siqueira

doi:10.1016/j.psep.2018.04.023

Cited by 44 publications

(13 citation statements)

References 33 publications

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“…In view of the high demand for water in many industrial processes, the use of ED as an alternative method of turning sewage into water of a suitable quality for industrial processes is a valuable topic for research. The use of ED to produce water for cooling towers from petrochemical effluent has already been studied, and the produced water complied with the corresponding standards for reuse in cooling towers [13]. In this work, although the sewage used had already been treated in a municipal wastewater treatment plant using macrophytes, the effluent did not reach the standards established for discharge or reuse.…”

Section: Accepted Manuscriptmentioning

confidence: 88%

Electrodialysis for the tertiary treatment of municipal wastewater: Efficiency of ion removal and ageing of ion exchange membranes

Gally

Benvenuti

Trindade

et al. 2018

Journal of Environmental Chemical Engineering

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Section: Accepted Manuscriptmentioning

confidence: 88%

Electrodialysis for the tertiary treatment of municipal wastewater: Efficiency of ion removal and ageing of ion exchange membranes

Gally

Benvenuti

Trindade

et al. 2018

Journal of Environmental Chemical Engineering

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“…Firstly, the RO assays were performed in a pilot system from PAM Selective Membranes, Rio de Janeiro, Brazil, equipped with a spiral polyamide membrane module BW 30 4040 (Filmtec), with a membrane area of 7.2 m 2 ( Figure 1 ). Based on the best-operating conditions, determined in the previous work of Venzke et al [ 15 ], the RO unit was operated with a transmembrane pressure (∆P) of 8 bar, while the permeate flow was maintained at 348 L·h −1 and the reject flow at 300 L·h −1 . The low pressure used is associated with the low osmotic pressure of the wastewater to be treated.…”

Section: Methodsmentioning

confidence: 99%

Electrooxidation Using Nb/BDD as Post-Treatment of a Reverse Osmosis Concentrate in the Petrochemical Industry

Silva

Venzke

Welter

et al. 2019

IJERPH

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This work evaluated the performance of an electrochemical oxidation process (EOP), using boron-doped diamond on niobium substrate (Nb/BDD), for the treatment of a reverse osmosis concentrate (ROC) produced from a petrochemical wastewater. The effects of applied current density (5, 10, or 20 mA·cm−2) and oxidation time (0 to 5 h) were evaluated following changes in chemical oxygen demand (COD) and total organic carbon (TOC). Current efficiency and specific energy consumption were also evaluated. Besides, the organic byproducts generated by EOP were analyzed by gas chromatography coupled to mass spectrometry (GC–MS). The results show that current densities and oxidation time lead to a COD and TOC reduction. For the 20 mA·cm−2, changes in the kinetic regime were found at 3 h and associated to the oxidation of inorganic ions by chlorinated species. After 3 h, the oxidants act in the organic oxidation, leading to a TOC removal of 71%. Although, due to the evolution of parallel reactions (O2, H2O2, and O3), the specific energy consumption also increased, the resulting consumption value of 66.5 kW·h·kg−1 of COD is considered a low energy requirement representing lower treatment costs. These results encourage the applicability of EOP equipped with Nb/BDD as a treatment process for the ROC.

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“…Some ED applications were studied for desalinating RO brine from petrochemical industry wastewater treatment, showing interesting results despite the scaling and fouling potential. A pilot EDR exhibited removal efficiencies above 90% for Cl − and alkalinity, and of 76% for TDS, from a WWRO brine with 1104 mg/L TDS, and this RO-EDR process enhanced significantly the water recovery (87.3%) [516] compared to the EDR-RO scheme [352] (41%, see Section 4.3.2), thus offering the chance of reuse (cooling towers). Another EDR study achieved TDS removal of 50% (from 8663 mg/L TDS in the feed) with 85% of water recovery that reduced the brine volume by~6.5 times [517].…”

Section: Wwro Brinementioning

confidence: 99%

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

et al. 2020

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This paper presents a comprehensive review of studies on electrodialysis (ED) applications in wastewater treatment, outlining the current status and the future prospect. ED is a membrane process of separation under the action of an electric field, where ions are selectively transported across ion-exchange membranes. ED of both conventional or unconventional fashion has been tested to treat several waste or spent aqueous solutions, including effluents from various industrial processes, municipal wastewater or salt water treatment plants, and animal farms. Properties such as selectivity, high separation efficiency, and chemical-free treatment make ED methods adequate for desalination and other treatments with significant environmental benefits. ED technologies can be used in operations of concentration, dilution, desalination, regeneration, and valorisation to reclaim wastewater and recover water and/or other products, e.g., heavy metal ions, salts, acids/bases, nutrients, and organics, or electrical energy. Intense research activity has been directed towards developing enhanced or novel systems, showing that zero or minimal liquid discharge approaches can be techno-economically affordable and competitive. Despite few real plants having been installed, recent developments are opening new routes for the large-scale use of ED techniques in a plethora of treatment processes for wastewater.

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Increasing water recovery rate of membrane hybrid process on the petrochemical wastewater treatment

Cited by 44 publications

References 33 publications

Electrodialysis for the tertiary treatment of municipal wastewater: Efficiency of ion removal and ageing of ion exchange membranes

Electrodialysis for the tertiary treatment of municipal wastewater: Efficiency of ion removal and ageing of ion exchange membranes

Electrooxidation Using Nb/BDD as Post-Treatment of a Reverse Osmosis Concentrate in the Petrochemical Industry

Electrodialysis Applications in Wastewater Treatment for Environmental Protection and Resources Recovery: A Systematic Review on Progress and Perspectives

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