The surge in nano/microplastics (NPs/MPs) through myriad daily products released in the aqueous environment highlights the importance of the urgent development of mitigation techniques. The study has assessed the performance of iron-modified biochar pyrolysed at two different temperatures, i.e., 550°C (FB-550) and 850°C (FB-850), with magnetic extractability for the easy and prompt removal of NPs of varying size and surface functionality. NP1 (1000 nm, carboxyl), NP2 (1000 nm, amine), and NP3 (30 nm, carboxyl) were subjected to batch experiments with the composites. Rapid elimination of all the NPs (<10 min) from the water system using robust magnetic composites was observed. A higher order of reaction kinetics (n > 2) was found through the general order model, and a good fit for the Sips isotherm suggests ultrafast NPs removal and the heterogeneous nature of the composite surface. Maximum removal capacities for NP1 (225.11 mg/g) and NP3 (206.46 mg/g) were obtained using FB-850, whereas FB-550 showed higher removal of NP2 (290.20 mg/g). The influence of solution pH on the sorption of NPs was limited with significant variation in zeta potential, suggesting the probability of surface complexation of NPs. The spectroscopic analysis of the reaction mixture showed the disappearance of the COO− peak, the generation of FeOOH stretching, and the shift in the Fe-O band, confirming the involvement of surface complexation in the sorption process. Minimal impact of environmental parameters, reaction spontaneity, and efficient removal of NPs in complex aqueous matrices justifies the composites’ environmental applicability. No-iron release and excellent reusability of the utilised adsorbents support the large-scale applicability of the composites.
The Scheme of Control and Enforcement Scheme (Scheme) of the North East Atlantic Fisheries Commission (NEAFC) applies to all fishing vessels used or intended for use in fishing activities conducted on fisheries resources in the Regulatory Area. The scheme is divided into seven chapters: General Provisions (I), Control Measures (II), Monitoring of Fisheries (III), Vessel[…]
For the purpose of ensuring that fishing activities are in compliance with South Indian Ocean Fisheries Agreement (SIOFA) Conservation and Management Measures (CMMs), this CMM provides regulations that make it easier to monitor, control, and monitor fishing activities. It is the responsibility of the Contracting Parties, cooperating non-contracting party (CNCPs), and participating fishing entities (PFEs) to[…]
In the context of sustainable fishing activities, this Regulation establishes specific rules regarding the eligibility of costs associated with operations that aim to protect and restore marine biodiversity and ecosystems. Additionally, this Regulation addresses the eligibility of costs for operations that aim to mitigate climate change and improve the energy efficiency of fishing vessels. Furthermore,[…]
The Third Caribbean Regional Fisheries Mechanism (CRFM) Strategic Plan (2022-2030) sets out a clear roadmap for achieving the CRFM’s vision of effective management, conservation and sustainable use of our fisheries and aquaculture resources, to maximise social and economic benefits in the CRFM Member States. The plan was approved by the Eleventh Special Meeting of the[…]
This measure is based on the Convention on the Conservation and Management of Fishery Resources in the South East Atlantic Ocean, adopted by the Annual Meeting of the South East Atlantic Fisheries Organization (SEAFO) in 2015, establishes the System of Observation, Inspection, Compliance and Enforcement, which shall apply to all fishing vessels and fishing research[…]