Microalgal-based desalination brine remediation: Achievements, challenges, and future research trends

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 34, P. 103592 - 103592

Published: March 2, 2024

Desalination brine discharge has several negative impacts on the marine environment, such as increase in salinity levels, effects biodiversity, and alteration of physical chemical characteristics water. In addition, desalination plants consume significant amounts energy, which contribute to carbon emissions global warming. Various management strategies have been adopted mitigate discharge, these are often expensive, require extensive infrastructure, may not be feasible all locations. The focus this review is Algae-based bioremediation, a promising approach managing it only reduces environmental pollution but also produces valuable biomass products. Mechanisms employed by microalgae for including nutrient recovery, organic heavy metal removal through processes like biosorption, bioaccumulation, detoxification discussed. Algae can grow high water use nutrients present produce biomass, harvested used variety applications, biofuels, feed, pharmaceuticals. This potentially provide sustainable cost-effective solution from plants. highlights achievements microalgae-based remediation, sequestration valorization microalgal after treatment. Challenges field, brine's algal harvesting, addressed. paper outlines research trends that encompass strain selection optimization, capture, recycling, photobioreactor design, anaerobic digestion, biochar production, techno-economic feasibility analysis. These future-focused approaches aim enhance sustainability efficacy cultivation remediation.

Language: Английский

---

Processing of lipid-enriched microalgae Chlorella biomass into biofuels and value-added chemicals

Fuel, Journal Year: 2024, Volume and Issue: 381, P. 133484 - 133484

Published: Oct. 25, 2024

Language: Английский

---

Emerging and ecofriendly biological methods for agricultural wastewater treatment

ENVIRONMENTAL SYSTEMS RESEARCH, Journal Year: 2024, Volume and Issue: 13(1)

Published: Oct. 15, 2024

Abstract The quest for sustainable agricultural practices has led to a surge in research focused on innovative wastewater treatment methods. This review explores the emerging biological approaches designed address challenges of eco-friendly and subsequent reuse. investigation centers around three novel techniques: constructed wetlands, algae-based systems, microbial fuel cells. Constructed wetlands (CWs) mimic natural processes treat wastewater, providing habitat various plant species that collaboratively remove contaminants. Algae-based systems(ABs) harness photosynthetic prowess algae absorb nutrients pollutants, producing biomass can be repurposed. Meanwhile, cells (MFCs) employ microorganisms break down organic matter while generating electricity as valuable byproduct. aims provide insights into potential these methods revolutionize management agriculture. By mitigating environmental impact, conserving water resources, yielding reusable outputs, techniques will offer pathway towards addressing pressing enhancing overall ecological balance.

Language: Английский

---

Investigation of NaCl-Modified Graphitic Carbon Nitride for Efficient Biodiesel Production from Waste Oil via Transesterification: A Box–Behnken Design Approach

ACS Omega, Journal Year: 2024, Volume and Issue: 9(13), P. 15641 - 15649

Published: March 20, 2024

NaCl-modified graphitic carbon nitrides (GCN) were applied in the base-catalyzed transesterification of recovered oil. GCN has been seen as a prospective heterogeneous catalyst for transesterification, but pristine-GCN narrow range applications because its weak basic sites and small surface area. To overcome these defects, was prepared through co-thermal polymerization NaCl with urea. The doping generated C≡N Na–N species, which enhanced basicity catalyst. Meanwhile, assistance NaCl, decomposed produced large number pores hundreds nanometers, contributed to increase specific In addition, effects parameters their interactions on biodiesel yields investigated by using Box–Behnken design, reaction conditions optimized. A high yield 93.05% achieved under optimal conditions.

Language: Английский

---

Synthesis and Comparative Study of Biodiesels from the Nine Different Edible and Non-Edible Vegetable Oils

Materials chemistry horizons., Journal Year: 2024, Volume and Issue: 3(1), P. 9 - 16

Published: March 1, 2024

Language: Английский

---

Hematite Nanoparticle Mediated Enhancement of Chlorella minutissima Lipid Productivity for Sustainable Biodiesel Production

Journal of Experimental Biology and Agricultural Sciences, Journal Year: 2024, Volume and Issue: 12(3), P. 366 - 378

Published: July 15, 2024

This study aims to enhance lipid and biofuel productivity from Chlorella minutissima with hematite (α-Fe2O3) nanoparticles (IONPs) as a growth stimulant. The IONPs were synthesized using chemical method characterized X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive (EDX) analysis confirm their structure composition. experimental setup involved inoculating various concentrations of (10, 20, 30 mg·L−1) into the microalgal BG-11 medium evaluate impact on biodiesel production. Results this showed that concentration 10 mg·L−1 significantly increased biomass 508.1 over 20-day cultivation period, achieving highest production rate 31.7 mg·L−1·d−1 at concentration. extracted was subsequently transesterified biodiesel. Key properties, such cetane number, calorific value, density, viscosity, measured assess fuel quality. findings demonstrate incorporating can boost both content overall growth, thereby improving suggests use α-Fe2O3 presents promising approach for scalable sustainable microalgae.

Language: Английский

---

Efficient treatment of actual biogas slurry by Chlorella sorokiniana: Nutrient recovery and biomass production

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 66, P. 106007 - 106007

Published: Aug. 18, 2024

Language: Английский

---