Author(s): Bi H; Wang Z; Yue R; Sui J; Mulligan CN; Lee K; Pegau S; Chen Z; An C;

Coastal areas of the Arctic and Subarctic are vulnerable to accidental oil spills, impacting the ecosystem, society, and economy. This article provides a comprehensive overview of oil spill pollution issues in cold regions, focusing on environmental impacts, oil transport and fate, coastal/shoreline response measures, and the state of current internationa ...

Article GUID: 39689468

Author(s): Wilcox SM; Mulligan CN; Neculita CM;

Mining waste represents a global issue due to its potential of generating acidic or alkaline leachate with high concentrations of metals and metalloids (metal(loid)s). Microbial-induced calcium carbonate precipitation (MICP) is an engineering tool used for remediation. MICP, induced via biological activity, aims to precipitate calcium carbonate (CaCO3) or ...

Article GUID: 38393202

Author(s): Bi H; Mulligan CN; Lee K; An C; Wen J; Yang X; Lyu L; Qu Z;

Oil deposited on shoreline substrates has serious adverse effects on the coastal environment and can persist for a long time. In this study, a green and effective microemulsion (ME) derived from vegetable oil was developed as a washing fluid to remove stranded oil from beach sand. The pseudo-ternary phase diagrams of the castor oil/water (without or witho ...

Article GUID: 37399736

Author(s): Fukue M; Lechowicz Z; Fujimori Y; Emori K; Mulligan CN;

The estimation of optical density (OD) with viable cells is challenging for engineering purposes. In this study, the OD conversion based on previous study was used. The inhibited and retarded behavior of the microbially induced carbonate precipitation (MICP) process was examined. The experimental results showed that high Ca2+ drastically influences the in ...

Article GUID: 37176240

Author(s): Binte Rafiq Era S; Mulligan CN;

The removal of NH4+, NO3-, and NH3- from wastewater can be difficult and expensive. Through physical, chemical, and biological processes, metals and nutrients can be extracted from wastewater. Very few scientific investigations have employed surfactants with high biodegradability, low toxicity, and suitability for ion removal from wastewater at different ...

Article GUID: 36838547

Author(s): Bolan S; Padhye LP; Mulligan CN; Alonso ER; Saint-Fort R; Jasemizad T; Wang C; Zhang T; Rinklebe J; Wang H; Siddique KHM; Kirkham MB; Bolan N;

This review aims to provide an overview of the sources and reactions of persistent organic pollutants (POPs) and surfactants in soil and sediments, the surfactant-enhanced solubilisation of POPs, and the unintended consequences of surfactant-induced remediation of soil and sediments contaminated ...

Article GUID: 36265382

Author(s): Vu KA; Mulligan CN;

Oil contamination has become a primary environmental concern due to increased exploration, production, and use. When oil enters the soil, it may attach or adsorb to soil particles and stay in the soil for an extended period, contaminating the soil and surrounding areas. Nanoparticles have been widely used for the treatment of organic pollutants in the soi ...

Article GUID: 35834082

Author(s): Vu KA; Mulligan CN;

BSTRACTOil (or petroleum), consisting of a mixture of hydrocarbons, can be leaked from oil exploration, production, and use. Due to their complex mixture and interaction with the subsurface soil and water, they are hard to treat and can become a significant environmental concern. Rhamnolipid and sophorolipid biosurfactants, biologically produced surfactan ...

Article GUID: 35361056

Author(s): Fukue M; Lechowicz Z; Fujimori Y; Emori K; Mulligan CN;

The engineering practices for applying the microbial precipitation of carbonates require a design of the blending biocement solution (BCS). The BCS is usually blended with concentrated strains NO-A10, reaction media, such as urea and CaCl2, and a solvent, i.e., water or seawater. To characterize the BCS, the unknown microbial characteristics, such as the ...

Article GUID: 35269187

Author(s): Abbasi-Garravand E; Mulligan CN;

A membrane-based technique for production of pressure-retarded osmosis (PRO) is salinity gradient energy. This sustainable energy is formed by combining salt and fresh waters. The membrane of the PRO process has a significant effect on controlling the salinity gradient energy or osmotic energy generation. Membrane fouling and operating conditions such as ...

Article GUID: 34436319

Author(s): Bi H; An C; Mulligan CN; Wang Z; Zhang B; Lee K;

Marine oil spills are often reported as a result of activities associated with oil exploration, production and transportation. The spilled oil may reach the shoreline, and then the stranded oil can persist for a long time, exerting many negative effects on coastal ecosystems. Conventional shoreline cleanup methods cannot effectively remove the oil residue ...

Article GUID: 34346356