Boiler wall tubes are important components in boilers for safe and efficient operation. After service exposure, boiler wall tubes often require replacement or repair, in which new sections of boiler tubes are welded onto the old boiler walls. Following the repair welding, the code requires the boiler be hydrostatic tested before putting the boiler back […]

Bio-oil derived from fast pyrolysis and hydrothermal liquefaction of lignocellulosic biomass usually contains a high oxygen content (30-50%), leading to a relatively low heating value, high viscosity and poor stability. Moreover, the presence of organic acids in crude bio-oil results in low pH value and hence corrosion of the reactor materials (steel or alloys). To […]

Reactive crystallization is a process commonly used for the production of chemical compounds including pharmaceutical ingredients. In a stirred-tank setup, one reagent solution stream is injected into the reactor where it meets a sitting solution of the other reagent. Reaction occurs as soon as the reagents meet, forming an insoluble product which quickly precipitates in […]

Occupying the large tailings ponds is the most significant environmental issue for oil sand conventional extraction process. Making Green Ceramic/building materials is the most promising method to reduce the size of tailings ponds. This not only leads to consumption of tailings but also results in valuable products for the construction industries. The main objectives of […]

The steam assisted gravity drainage (SAGD) is the most commonly employed process for extraction of oil or bitumen from oil sands reservoirs. This process involves injection of large quantity of steam into the oil reservoir. The injected steam is further recovered as produced water which constitutes high concentrations of hydrocarbons and mineral salts. Due to […]

Many major municipalities rely on ultraviolet (UV) disinfection of their drinking water and wastewater to protect their citizens and the environment. The novel coronavirus, Covid19, has been detected in water, and may be transmitted by improperly treated wastewater and drinking water. It is important that the sensitivity of Covid19 to UV be measured, in order […]

Public awareness of global climate change resulting from greenhouse gas emission has led to increasing utilization of renewable energy sources such as wind and solar. These sources are inherently intermittent in nature, necessitating effective methods of storing power for later use. Zinc-ion batteries (ZIBs) are a promising candidate, since zinc is widely available and inexpensive. […]

Enzyme immobilisation is crucial for preserving the enzyme activity while enabling the enzymes to be recovered and reused for multiple applications in biocatalysis. However, immobilisation can change the structure and functionality of enzymes. Therefore, immobilisation of enzymes needs to be carefully investigated and controlled at fundamental levels. The emerging two-dimensional (2D) materials, such as graphene […]

In recent years there has been renewed interest in nuclear power for the purposes of combating climate change. ARC Nuclear’s ARC-100 reactor design requires extensive research and development to deploy a prototype. Significant effort is needed to develop the materials to be used in the reactor’s core. HT9 is a specialty steel alloy which has […]

Unmanned Arial Surveillance is rapidly gaining acceptance for various applications, such as monitoring of long power transmission lines, pipelines and mass transit systems that extend for hundreds of kilometers. Unmanned Aerial Vehicles (UAVs) such as drones provide the flexibility to reduce costs. In the case of natural disaster occurrence such as earthquake, flood or hurricane, […]

Aqueous rechargeable zinc ion battery is a competitive candidate for the energy storage system. Compared to lithium ion battery, it has several advantages: high safety, high energy density, low cost and environmental friendliness. From many cathode materials, manganese dioxide (MnO2) has been widely used because of the low cost, abundant resource and environment friendly features. […]

As of 15 May 2020, more than 4.4 million COVID-19 cases have been reported across 188 countries and territories, resulting in more than 300,000 deaths. According to the World Health Organization reports, one of the main routes for transmission of COVID-19 and other infectious diseases is by contact with surfaces in public spaces that are […]