The radioactive waste produced from the construction of a nuclear power plant is a controversial topic. The resulting radioactive waste contains 60Co and 137Cs isotopes that are the most difficult to remove. Bentonite is widely used as an adsorbent for heavy metals. An important factor is the safe operation of waste management at a nuclear power plant to be built in Vietnam. Therefore, a method of degrading complexes of radionuclides and the adsorption of radionuclides onto Vietnamese Bentonite was implemented in this study. In current literature, UV radiation and heating with oxidising substances are used in general for degrading complexes of radionuclides. The experimental results for the adsorption of Co(II) and Cs+ onto VNB suggest that VNB can be used in the future for large-scale liquid waste treatment due to its low cost, high efficiency, and environmentally friendliness.
The impacts of scientific-technological development in the Fourth Industrial Revolution have created potentials and opportunities for the enhancement of acting capability, productivity of organizations in general and enterprises in particular. Facing the rapid changes of technology and operational modes, in order to achieve a sustainable development, corporates need to renovate their core elements such as human resources and culture. This article discuss the role of corporate culture as an instrument for responsible and sustainable business. Especially after the SARSCoV-2 pandemic, corporate culture has received the most attention over other solutions because it is both an immediate and a permanent solution in theory as well as in practice. From that, the authors also suggests some directions for the renovation of corporate culture corresponding to the current digital transformation process.
Keyword: Business sustainability, corporate culture, digital culture, digital transformation, employee’s empowerment.
An air-lift bioreactor using PVA-gel was used to remove organic components in wastewater treatment. The wastewater treatment system using Sequencing Batch Reactor with carrier material volume of 5%, activated sludge density of 2.5 g/L to treat artificial wastewater made from cat food (Whiskas) with initial COD content of 2,000 mg/L. After 10 days of operation, the removal efficiency of total COD, soluble COD, and achieved 92, 89, and 84%, respectively. Despite the high removal efficiencies of organic components, the output wastewater did not achieve QCVN 40:2011/BTNMT (Column B) discharge standards. Due to high concentrations of TSS and slow biodegradable organic components. The experimental system will be necessary to study the operating conditions to treat wastewater more efficiently and achieve the discharge standards to the environment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.