Electrocoagulation/electroflotation as a combined process for the laundry wastewater purification and reuse

Димогло, А. С.; Elibol, Pınar Sevim; Dinç, Özge; Gökmen, K.; Erdoğan, H.

doi:10.1016/j.jwpe.2019.100877

Cited by 66 publications

(32 citation statements)

References 29 publications

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“…Similar anionic surfactants removal efficiency was achieved by Dimoglo et al. [ 38 ] However, the amount of electricity used to achieve this efficiency in that study was higher than that determined in this study.…”

Section: Resultssupporting

confidence: 83%

“…Additionally, the anionic surfactants output concentration value ensured water discharge standards in Turkey ( < 0.5 ppm). Similar anionic surfactants removal efficiency was achieved by Dimoglo et al [38] However, the amount of electricity used to achieve this efficiency in that study was higher than that determined in this study.…”

Section: Ec/ef Experimentssupporting

confidence: 83%

“…So far, the EC/EF process has been used for the removal of pesticides, [26] drugs, [27] heavy metals, [28][29][30][31] organics, [32][33][34] and inorganics [35,36] from wastewater. Although some researchers have already tried to remove organics from LWW by the EC process, [37,38] a full-scale optimization study has to be carried out, including the adsorption kinetics, operating cost, and removal efficiency of microplastics via response surface methodology (RSM).…”

Section: Introductionmentioning

confidence: 99%

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Electrocoagulation/Electroflotation Process for Removal of Organics and Microplastics in Laundry Wastewater

Akarsu

Deniz

2020

CLEAN Soil Air Water

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In the present research, laundry wastewater treatment is studied using the electrocoagulation/electroflotation process. For the optimization of treatment conditions such as electrode type (Al–Al, Al–Fe, Fe–Fe, and Fe–Al), initial pH (5–9), current (0.54–2.16 A), and application time (15–60 min), response surface methodology is used. Removal efficiencies of chemical oxygen demand (COD), color, anionic surfactant, microplastic, and phosphate are studied. It is determined that the most effective removal is obtained with 2.16 A current, pH 9, and 60 min reaction time using Fe–Al electrode. Here, 91%, 94%, 100%, and 98% removal efficiencies are achieved for COD, surfactant, color, and microplastic, respectively. The operating cost of the combined process is calculated as $1.32 m−3 for the optimum removal parameters. The adsorption kinetics study shows that the removal follows second‐order kinetics. The laboratory‐scale test results indicate that the electrocoagulation/electroflotation process is feasible for the treatment of laundry wastewater.

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Section: Resultssupporting

confidence: 83%

Section: Ec/ef Experimentssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

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Electrocoagulation/Electroflotation Process for Removal of Organics and Microplastics in Laundry Wastewater

Akarsu

Deniz

2020

CLEAN Soil Air Water

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“…Treated LWW can be disposed to water bodies or reutilized. As per Table 4, it can be seen that the other techniques were efficient in surfactant or LAS removal and in controlling the levels of the pH, TS, TSS, TDS, EC, TA, and COD 2,13,17,51–56 . However, these techniques are either expensive or time-consuming and their efficiency declines with time.…”

Section: Resultsmentioning

confidence: 87%

“…Water stress is more like an economic scarcity where there is a lack of economic support for the sufficient amount of water infrastructure which leads to the availability of inadequate amount of portable water. The decreasing level of uncontaminated water (water crisis) has pushed many scientists into developing techniques for reusing and recycling of contaminated water 2,3 . Numerous studies have been conducted on the present and future water scarcity situation 4,5 .…”

Section: Introductionmentioning

confidence: 99%

Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media

Yaseen‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

Zigale

Tiyasha

et al. 2019

Sci Rep

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Numerous researchers have expressed concern over the emerging water scarcity issues around the globe. Economic water scarcity is severe in the developing countries; thus, the use of inexpensive wastewater treatment strategies can help minimize this issue. An abundant amount of laundry wastewater (LWW) is generated daily and various wastewater treatment researches have been performed to achieve suitable techniques. This study addressed this issue by considering the economic perspective of the treatment technique through the selection of easily available materials. The proposed technique is a combination of locally available absorbent materials such as sand, biochar, and teff straw in a media. Biochar was prepared from eucalyptus wood, teff straw was derived from teff stem, and sand was obtained from indigenous crushed stones. In this study, the range of laundry wastewater flow rate was calculated as 6.23–17.58 m3/day; also studied were the efficiency of the media in terms of the removal percentage of contamination and the flux rate. The performances of biochar and teff straw were assessed based on the operation parameters and the percentage removal efficiency at different flux rates; the assessment showed 0.4 L/min flux rate to exhibit the maximum removal efficiency. Chemical oxygen demand, biological oxygen demand, and total alkalinity removal rate varied from 79% to ≥83%; total solids and total suspended solids showed 92% to ≥99% removal efficiency, while dissolved oxygen, total dissolved solids, pH, and electrical conductivity showed 22% to ≥62% removal efficiency. The optimum range of pH was evaluated between 5.8–7.1. The statistical analysis for finding the correlated matrix of laundry wastewater parameters showed the following correlations: COD (r = −0.84), TS (r = −0.83), and BOD (r = −0.81), while DO exhibited highest negative correlation. This study demonstrated the prospective of LWW treatment using inexpensive materials. The proposed treatment process involved low-cost materials and exhibited efficiency in the removal of contaminants; its operation is simple and can be reproduced in different scenarios.

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Two different routes to prepare porous biodegradable composite membranes containing nanoclay

Zanini,

Ferreira,

Barbosa

et al. 2023

J of Applied Polymer Sci

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The method employed for membrane preparation and nanoparticle incorporation in membrane systems can affect their properties. This work aims to compare the better strategy to obtain membranes from the preparation of PBAT [Poly(butylene adipate co‐terephthalate)] containing nanoclay Cloisite® 20A (C20A) (0, 0.5, and 1 wt.%) by combined Evaporation/Non‐solvent Induced Phase Separation (EIPS/NIPS) or dip coating methods. The SEM, TGA, contact angle measurements, FTIR, XRD, mechanical testing, and cost analysis characterized EIPS/NIPS to dip coating membranes. EIPS/NIPS membranes had smaller pores (0.3–0.5 μm), with a more homogeneous pore diameter distribution due to C20A nanoclay insertion. PBAT/0.5% C20AEIPS/NIPS was the more hydrophilic membrane (37°) with better mechanical properties proven by statistical analysis. The cost analysis showed that EIPS/NIPS membranes production cost per square meter (m2) was lower (US$ 73.4–73.8) than dip coating (US$ 89.0–99.2). The EIPS/NIPS method was the most economically and statistically advantageous, and its properties can favor future applications for PTEs removal in aqueous media.

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Electrocoagulation/electroflotation as a combined process for the laundry wastewater purification and reuse

Cited by 66 publications

References 29 publications

Electrocoagulation/Electroflotation Process for Removal of Organics and Microplastics in Laundry Wastewater

Electrocoagulation/Electroflotation Process for Removal of Organics and Microplastics in Laundry Wastewater

Laundry wastewater treatment using a combination of sand filter, bio-char and teff straw media

Two different routes to prepare porous biodegradable composite membranes containing nanoclay

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