This subject covers the scientific principles behind the membrane separation processes, and the classification of industrial wastewaters and the strategies for wastewater treatment to meet trade effluent standards and for resource recovery.  For water treatment, further studies into the characteristics of microfiltration, nanofiltration, ultrafiltration, reverse osmosis are also carried out. Differences in the behaviour of different membranes are also highlighted. Desalination membrane systems and industrial case studies will be covered as well. For wastewater treatment, the characteristics and treatment methodology for various industries like chemical, pharmaceutical, etc. will be covered. Membrane bioreactor systems and industrial case studies will also be included.

This subject covers issues related to urban solid waste management and an integrated approach to environmental management through the consideration of the potential impact of human activities on the physical and biological environment. Solid waste topics include generation, collection, transportation, thermal recovery technology, biological recovery technology and landfill. Continual improvement to organisation environmental performance is covered in environmental management system (ISO 14001), which includes environmental regulations in Singapore.

This subject covers the operation and maintenance of common utilities found in industries and the technologies used for air pollution control from point-source emissions. Topics for plant utilities include boiler systems, high-purity water, industrial chillers, and cooling towers. Topics for pollution control include types of air pollutants and their impact on health and environment, air quality monitoring, air pollution control technology and equipment.

Upon completion of the subject, learners can expect to be able to:
• Calculate corrosion/scaling and fouling potential in water utilities
• Calculate boiler efficiency
• Perform data interpretation of compressed air systems
• Explain air pollution control technology and equipment 

This subject covers the workings of common energy-intensive systems in the workplace, chiefly the HVAC (heating, ventilation and air-conditioning) system.  Among the areas covered are configurations of different chilled water distribution systems, different types of fans used in mechanical ventilation systems, types of instruments used for measurement of parameters in air-conditioning and mechanical ventilation (ACMV) systems and how the systems can be optimised for energy efficiency.

Upon completion of the subject, learners can expect to be able to:
• Explain the selection considerations for various types of ACMV systems
• Compare the different strategies used to improve energy efficiency of the ACMV system
• Analyse various air-treatment processes in the air-handling systems
• Analyse fluid flow with losses using conservation laws for pump sizing
• Examine factors affecting the selection and efficiency of motor-driven systems