Discussion of “Fastest Rapid Loading Methods of Vertical and Radial Consolidations” by S. K. Tewatia, Pratima Rani Bose, and Asuri Sridharan

Tewatia, Sudhir Kumar; Bose, P. R.; Sridharan, A.

doi:10.1061/(asce)gm.1943-5622.0000423

Cited by 2 publications

(1 citation statement)

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“…5,6 The development of strategic wastewater treatment technologies, including advanced oxidation, adsorption, photocatalytic degradation, biological treatment, and membrane filtration, has been driven by the urgency to address the escalating problem. 7,8 However, many of these technologies exhibit inherent drawbacks, such as poor hydrophobic stability, time-intensive processes, arduous energy utilization, mediocre performance, and the risk of secondary pollutants. 9 Consequently, there is a growing interest in more practical methods for large-scale oily wastewater treatment, with a focus on the physical sorption of oil.…”

Section: ■ Introductionmentioning

confidence: 99%

Hierarchical 0D CuO Wrapped by Petal-like 2D ZnO: A Strategic Approach of Superhydrophobic Melamine Sponge toward Wastewater Treatment

Aier,

Dhar Purkayastha

2024

Langmuir

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In addressing the pressing environmental challenges posed by frequent oil spills, this work presents a novel approach of synthesizing a superhydrophobic three-dimensional (3D) porous melamine sponge (MS). CuO and ZnO nanoparticles were grown on the MS via a hydrothermal method to create MS/CuO/ZnO with multiscale hierarchical nanostructures. The resulting material exhibited a stable water contact angle of 155°through various tests. MS/ CuO/ZnO demonstrated exceptional oil absorption capacities (40−145 g/g and 0.83−0.99 mL.cm −3 ), surpassing 98% efficiency in oil separation, and retained reusability for 10 cycles. Impressively, the sponge achieved successful separation of oil/water emulsions with a permeation flux of 14870 L m −2 h −1 . The composite sponge, distinguished by its high photodegradation ability, can degrade both waterand oil-targeted pollutants under visible light irradiation from light-emitting diode (LED). With its remarkable attributes including superior oil absorption, excellent oil/water separation, mechanical resistance, and excellent photocatalytic ability, it exhibits considerable potential for applications in both wastewater treatment and large-scale marine oil spill response. The easily prepared MS/CuO/ZnO emerges as a versatile solution capable of addressing pressing challenges and marking a significant leap toward sustainable and impactful environmental remediation.

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Section: ■ Introductionmentioning

confidence: 99%