Factors Affecting Efficiency of Biosorption of Fe (III) and Zn (II) by Ulva lactuca and Corallina officinalis and Their Activated Carbons

Ameen, Mahy M.; Moustafa, Abdelrauf; Mofeed, Jelan; Hasnaoui, M.; Olanrewaju, Oladokun Sulaiman; Lazzaro, Umberto; Guerriero, Giulia

doi:10.3390/w13233421

Cited by 6 publications

(6 citation statements)

References 105 publications

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“…Figure 1 shows the SEM micrographs obtained for the materials used in this study. All the materials presented a rugged surface with laminar and granular particles, which are characteristic of biomass and activated carbons obtained from biomass [47][48][49]. The AC PO4 (Figure 1e,f) displayed a great distribution of pores on the surface, characteristic of materials with excellent adsorptive capacity and high surface area, as shown in previous publications [50,51].…”

Section: Adsorbents Characterizationsupporting

confidence: 72%

Single-Step Modification of Brewer’s Spent Grains Using Phosphoric Acid and Application in Cheese Whey Remediation via Liquid-Phase Adsorption

Castro,

Matheus,

Mançano

et al. 2023

Water

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Brewer’s spent grains (BSG) are a significant by-product of beer production, and its improper disposal poses environmental challenges. This study investigated the use of BSG for activated carbon production with phosphoric acid as a chemical activator and its application in cheese whey remediation through liquid-phase adsorption. The adsorbent was thoroughly characterized through using techniques such as FTIR, SEM, N2 isotherms, and surface charge distribution. The adsorbent exhibited substantial pores, a high surface area (605.1 m2 g–1), good porosity, and positive surface charges that facilitated favorable interactions with cheese whey compounds. Equilibrium was achieved in 330 min for lactose, BOD5, and COD. The maximum adsorption capacities were 12.77 g g–1 for lactose, 3940.99 mg O2 g–1 for BOD5, and 12,857.92 mg O2 g−1 for COD at 318 K. Removing these adsorbates from cheese whey effluent reduces its organic load, enabling water reuse in the manufacturing unit, depending on its intended use. The adsorption process was spontaneous and endothermic, with ΔH° ≥ 265.72 kJ mol−1. Additionally, the activated carbon produced demonstrated impressive regeneration capability with sodium hydroxide, maintaining 75% of its adsorption capacity. These results emphasize the potential of activated carbon as an effective adsorbent for cheese whey remediation, providing a sustainable solution for waste management in the dairy industry and water reuse.

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Section: Adsorbents Characterizationsupporting

confidence: 72%

Single-Step Modification of Brewer’s Spent Grains Using Phosphoric Acid and Application in Cheese Whey Remediation via Liquid-Phase Adsorption

Castro,

Matheus,

Mançano

et al. 2023

Water

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“…As waves move closer to the shore and reach shallow water, their wavelength decreases, causing their speed to slow down-however, the wave energy and height increase [96]. When water particles come into contact with the seabed, friction causes energy loss.…”

Section: Hard Coastal Structures Vs Nature-based Solutionsmentioning

confidence: 99%

Review of Nature-Based Echo-Hydraulic Aqua-Forest Technology for Coastal Resilience and Sea Level Rise Climate-Induced Adaptation

Oladokun,

Lazzaro

2024

Preprint

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Approximately 20% of the world's population resides in coastal areas at risk of rising sea levels due to climate change. This could lead to severe weather events and ecological impact on critical infrastructure. To combat the effects of water-based environmental forces on the land, hard engineering methods such as seawalls have been utilized. However, a more sustainable solution is emerging in nature-based engineering, which involves growing vegetation. This approach can help extend the lifespan of existing technology and provide climate change adaptation and resilience for coastal and riverine communities. The following paper will review seaweed farms as an advanced nature-based mitigation approach. The paper also outlines the findings of experiments at RWTH Aachen University's hydraulic laboratory. These tests involved using seaweed as a natural solution to dampen waves in a model system to test a hypothesis. One result involving a system with two lines of seaweed revealed 15 percent wave damping. Using seaweed as a nature-based solution, a gentle engineering approach to designing future vegetated protection systems can extend the design life of existing coastal infrastructure. This can also provide protection against climate-induced sea level rise, promote coastal risk mitigation, restore ecosystems, and foster blue bio-economic development.

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“…As the waves propagate towards the shore and encounter shallower water, the wavelength and hence, the wave speed decrease. However, the wave energy and height increase [96]. Friction between the water particles and the seabed results in energy loss.…”

Section: Figurementioning

confidence: 99%

“…Growing seaweed can provide a natural way for adaptation that can help curb the increasing sea level rise and associated risk. Seaweed aquaculture can also help reduce the emissions from agriculture, by improving soil quality feeding to reduce methane emissions [96,97]. Seaweed aquaculture helps climate change adaptation by damping wave energy to protect shorelines, and by elevating pH and supplying oxygen to the waters, thereby locally reducing the effects of ocean acidification and de-oxygenation.…”

Section: Figurementioning

confidence: 99%

Review of Nature based Ecohydraulic Aquaforest Technology for Coastal Resilience and Sea Level Rise Climate-Induced Adaptation - Part A

Olanrewaju¹,

Lazzaro²

2023

Preprint

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One-fifth of the world’s population and critical infrastructures are near the coast and regions at high risk of sea level elevation. Climate change is expected to increase coastal extreme events, rising sea levels, and impact on ecosystem. This paper reviews coastal physical processes, wave and impacts, and the introduction of nature-based models for the mitigation of flooding, erosion, and recovery. Hard engineering like seawalls has been used to prevent, protect, and control water-based environmental forces with an extended impact on the land. A nature-based engineering solution, such as growing vegetation, is being adopted as a sustainable solution to help make existing technology live its design life and provide climate change adaptation and resilience for coastal and riverine communities. This paper presents applications of seaweed farms as an advanced nature-based mitigation approach. The result of the experiments conducted at RWTH Aachen University on wave damping of seaweed types and farming structures to validate the hypothesis will be presented in part B. A soft engineering approach to designing future vegetated protection systems using seaweed as a nature-based solution can help existing coastal infrastructure design life and protect against climate-induced SLR rise and adaptation, coastal risk mitigation, ecosystem restoration, and blue bio-economic development.

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Factors Affecting Efficiency of Biosorption of Fe (III) and Zn (II) by Ulva lactuca and Corallina officinalis and Their Activated Carbons

Cited by 6 publications

References 105 publications

Single-Step Modification of Brewer’s Spent Grains Using Phosphoric Acid and Application in Cheese Whey Remediation via Liquid-Phase Adsorption

Single-Step Modification of Brewer’s Spent Grains Using Phosphoric Acid and Application in Cheese Whey Remediation via Liquid-Phase Adsorption

Review of Nature-Based Echo-Hydraulic Aqua-Forest Technology for Coastal Resilience and Sea Level Rise Climate-Induced Adaptation

Review of Nature based Ecohydraulic Aquaforest Technology for Coastal Resilience and Sea Level Rise Climate-Induced Adaptation - Part A

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