Diploma in Environmental & Water Technology (N74)

Why EWT?

  • Established course in environmental science and technology that contributes to a sustainable future 
  • Strong partnership with PUB and NEA opens up exciting hands-on learning opportunities 
  • Work with scientists and engineers on cutting edge industry-based multi-disciplinary projects at our Environmental & Water Technology Centre of Innovation 
  • Apply for a bond-free PUB Scholarship that comes with an internship placement

About EWT

With life in Singapore set to be much greener under the Singapore Green Plan 2030, new sustainability initiatives will change the way people work, study and play. Join our Diploma in Environmental & Water Technology (EWT) and be at the forefront of developing sustainable environmental solutions!

Jointly developed with Singapore’s National Water Agency - PUB, EWT will equip you with a firm grounding in the key areas of water technology, waste management and resource conservation, as well as pollution monitoring and control. This course provides a strong foundation for you to pursue further studies and career opportunities in the growing sustainability sector. 

There are also opportunities for you to score a bond-free PUB scholarship, which will open doors for you to get equipped to play a key role in Singapore’s sustainability story!

Get an introduction to basic concepts of environmental science, engineering and technology before learning about the various aspects of environmental engineering and water technology, such as air and water quality monitoring and control, stormwater management, and closing the water loop. You will also learn basic data analysis and technical drawing skills, which will give you a head start in analysing data from environmental studies and be better equipped to address green challenges. 

There will also be opportunities for you to apply your skills to solve real-world issues in competitions such as WorldSkills Singapore, Singapore Junior Water Prize and Sembcorp Greenwave Competition. The course will also provide opportunities for you to gain additional skill certifications such as the BizSafe, noise monitoring and noise control certificates that will give you an edge.

What’s more, you will also learn about emerging technologies such as Internet-of-Things (IoT) and 3D printing relating to environmental applications, thanks to our enhanced curriculum. You will even get to apply what you have learnt in multidisciplinary projects or hands-on activities such as operating drones for environmental monitoring.

In your final year, hone your skills further by working on a final-year project to address real-world problems and a six-month internship. You can also opt for hands-on learning opportunities at our Environmental & Water Technology Centre of Innovation (EWTCOI) and work alongside research engineers and scientists on industry-based projects.


Novel Green Sponge

Novel Green Sponge

EWT students Marcus Ong, Jessica Ong and Pearlyn Hsu took part in the 2021 PUB Splash Lab Competition where they developed ideas on how to increase the water holding capacity of the filter media in bioretention systems, which are part of the features of the ABC Waters Programme. By mixing different compositions of the filter media, they conducted various experiments in order to enhance the water retention, so as to reduce the incidences of flooding at ABC water sites. 

Further Studies

You can pursue a wide range of degree programmes offered by National University of Singapore, Nanyang Technological University, Singapore Institute of Technology, Singapore Management University, Singapore University of Technology and Design and Singapore University of Social Sciences. These include degree courses in in civil engineering, environmental engineering, environmental science, material science & engineering, architecture and chemistry. 

You may enjoy module exemptions when you apply for related degree programmes at overseas universities, including:


  • Murdoch University
  • The University of Adelaide
  • The University of Queensland
  • The University of Western Australia
  • University of New South Wales

United Kingdom

  • Newcastle University
  • The University of Manchester
  • University of Birmingham
  • The University of Plymouth
Headshot of Tan Shern Kai

Tan Shern Kai
Environmental & Water Technology graduate, Class of 2021

A recipient of the Singapore Sustainability Scholarship, Shern Kai will be pursuing a degree in Civil Engineering at NTU. 

Headshot of Tham Yin Wen

Tham Win Yen
Environmental & Water Technology graduate, Class of 2019

A recipient of the iBuildSG scholarship, Win Yen is currently pursuing a degree in Civil Engineering at NTU.


You will be ready for careers in government agencies, multinational corporations, university laboratories and research institutes. The EWT course provides you with the foundation and flexibility to work in various sectors ranging from chemical, environment to civil and workplace safety & health. 

You can look forward to careers in job roles such as:

  • Assistant Engineer
  • Assistant Process Engineer
  • Lab Analyst
  • Lab Officer
  • Noise Monitoring & Control Officer
  • Research Engineer
  • Water Treatment Specialist
  • Workplace Safety & Health Officer

Additional certificates will also qualify you for jobs such as a Noise Monitoring or Noise Control Officer.

Headshot of vikram

Environmental & Water Technology graduate, Class of 2016

As an executive engineer at PUB, Singapore’s National Water Agency, Vickram is involved in drainage planning.

Headshot of qian min

Lor Qian Min
Environmental & Water Technology graduate, Class of 2021

A lab analyst at SGS Testing & Control Services Singapore Pte Ltd, she conducts testing of consumer/retail, food or environmental and health samples in accordance with international standard or in-house methods. Qian Min is also pursuing a work-study programme to obtain a Specialist Diploma in Analytical Science.

Entry Requirements


To be eligible for consideration, candidates must have the following GCE ‘O’ Level examination (or equivalent) results.

Subject'O' Level Grade
English Language1-7
Mathematics (Elementary/Additional)1-6
Any one of the following subjects: 

Computing/Computer Studies
Design & Technology
Electronics/Fundamentals of Electronics
Science (Chemistry , Biology)
Science (Physics, Biology)
Science (Physics, Chemistry)

You must also fulfil the aggregate computation requirements for the ELR2B2-C Aggregate Type listed here (    33KB).

For students with other qualifications, please refer to the NP website for the entry requirements and admissions exercise period.

What You Will Learn

Data Analytics & Drafting (3 Credit Units)

The module provides an introduction to basic data analytics which includes understanding of statistics, data processing, and data visualization. In addition, the module also provides hands-on practice of AutoCAD in engineering drafting allowing students to apply it in environmental project work, including noise mapping, sewerage and drainage diagrams, process plant diagrams and site plans.

Engineering Mathematics 1 (6 Credit Units)

The module provides students with an adequate foundation of Engineering Mathematics that will enable them to acquire the necessary mathematical skills required in other engineering subjects. Students will also use a mathematical software package to solve mathematical problems.

Fundamentals of Engineering Principles (3 Credit Units)

The module introduces students to basic engineering concepts and applications, for example, units and dimensions, mass balance calculations, and reaction stoichiometry. Upon completion of this module, students will be able to undertake basic engineering calculations.

Inorganic & Physical Chemistry (5 Credit Units)

This module covers the principles of physical chemistry as well as the reactions and properties of inorganic compounds. Students will study the structure of matter, chemical bonding, chemical calculations, electrochemistry and redox reactions, chemical equilibria, ionic equilibria, chemical kinetics, thermochemistry, transition metal chemistry and chemistry of solutions, including acids and bases.

English Language Express* (Credit Units - NA)

English Language Express aims to give you a better grounding in the English Language and to strengthen the written and oral communications skills that you will need in your academic and professional careers. You will be engaged in writing, reading, listening and speaking activities that will develop your ability to speak and write grammatically, coherently and clearly. You will also hone your reading and listening comprehension skills.

Innovation Made Possible^ (3 Credit Units)

Career & Professional Preparation 1 (1 Credit Units)

This module is part of the Education and Career Guidance framework to provide students with the tools and resources necessary for their career and/ or further education. In this first module, students will undergo personal discovery and exploration of industry and career prospects. Students will learn how to plan and set achievable goals in preparation for their future. Students will also learn the importance of passion and professionalism, along with basic teamwork and interpersonal skills.

Engineering Mathematics 2 (6 Credit Units)

A continuation of the Engineering Mathematics I module, this module provides students with an adequate foundation of Engineering Mathematics that will enable them to apply the mathematical skills for their careers and/or further studies. The emphasis of this module is placed on their applications in solving engineering related problems. Students will also use a mathematical software package to solve mathematical problems.

Environmental Microbiology & Biotechnology (2 Credit Units)

The module covers fundamentals of microbiology and biotechnological methodologies to assess the well-being of ecosystems, transform pollutants to harmless substances, generate biodegradable materials from renewable sources, and develop eco-friendly manufacturing and disposal processes. Applications, including recent developments in the field of microbiology and biotechnology in aspects relating to the environment will be covered.

Hydraulics (4 Credit Units)

Students will learn the basic hydraulic principles and concepts which are essential for the study of water and wastewater treatment technologies. Students will be exposed to properties of fluids, manometers, hydrostatics and fundamental principles of fluid flow. Head losses in pipeline, design of pipeline, flow measurements and pipe network analysis will be covered. Students will also learn the open channel flow, the design of surface water drainage systems and pumping pipeline systems.

Solid & Hazardous Waste Management (3 Credit Units)

In this module, students will be taught how solid and hazardous waste is generated, methods of collection, handling, treatment, disposal of waste and related pollution impacts. Concepts of waste minimisation such as recycling, reuse, reduction and waste exchange will be highlighted as effective tools for sustainable waste management. Issues in hazardous waste with emphasis on biomedical waste generation, collection and treatment will be addressed. Local legislation for solid and hazardous waste will be explained in relation to the overall waste management system.

Communication Essentials^ (3 Credit Units)

Health & Wellness^ (1 Credit Unit)

ABC Waters Management (4 Credit Units)

Singapore has an extensive network of waterways and waterbodies allowing efficient stormwater management. This module provides an introduction to the Active, Beautiful and Clean (ABC) Waters Programme as part of the initiative to remake Singapore into a vibrant ‘City of Gardens and Water’. Students will be taught about the role of ABC Waters design features in keeping Singapore’s waterways and waterbodies clean by retaining and treating stormwater close to the source. Other topics covered include design concepts of sedimentation basins, vegetated swales and bioretention systems.

Career & Professional Preparation 2 (2 Credit Units)

This module is part of the Education and Career Guidance framework to provide students with the tools and resources necessary for their further career and/or education. In this module, students will explore basic job search strategies, practise writing effective resumes and cover letters, and learn interview skills. Students will also learn professional and intercultural communication skills to prepare them for a dynamic and diverse workplace.

Environmental Laboratory 2 (3 Credit Units)

This module integrates the practical aspects of Environmental Microbiology and Chemistry. Students will harness their laboratory skills in sample preparation and testing. They will also learn about laboratory operations management. Basic Internet of Things aspect in water monitoring will also be introduced.

Noise Monitoring & Control (4 Credit Units)

Singapore’s rapid economic growth towards an industrialised and urbanised society coupled with an affluent population has resulted in a greater need to control noise in the general environment. The control of noise pollution is essential in all aspects of work and students will be taught the fundamentals of how noise pollution arises, health impacts of noise, measurement and monitoring of noise levels, preventive and control measures and local environmental legislation. The module provides for two WSQ recognised certifications under Competency unit of Monitor Noise and Vibration (Competency Code: OH-PH-501C-1) and Competency unit of Control Noise and Vibration (Competency Code: OH-PH-502C-1), if students qualify based on the WSQ assessment plan.

Water & Environmental Chemistry (3 Credit Units)

This module introduces students to key aspects of environmental and water chemistry for application in pollution control, resource recovery and water and wastewater treatment. Students will learn quantitative measurements and analysis of solid wastes, water and wastewater. Principles of measurement, instrumentation and analysis are emphasised using an application-oriented approach.

Water Supply Technology & Design (4 Credit Units)

This module introduces the concepts of water treatment technologies for treating raw water from various sources. The focus in this module is to impart knowledge on the conventional water treatment technologies. The topics covered include pre-treatment, sedimentation, filtration and disinfection techniques for the treatment of potable water. Adverse effects of hardness and hardness treatment using chemical methods and the use of ion-exchange processes are covered in detail. Practical problems associated with the operation and maintenance of water treatment plants including mechanical & electrical equipment and possible solutions for these problems will be emphasised.

Air Quality Monitoring & Control (4 Credit Units)

Monitoring and control of both outdoor and indoor air pollution are important aspects of environmental management. Students are taught the fundamentals of how air pollution arises, types of pollutants, and their environmental and health impacts. Dispersion modelling, indoor air quality audit, sampling and monitoring of pollutants, techniques of identification of pollutants, preventive and control measures, local environmental legislation and guidelines on air quality including PSI will be introduced.

Civil Engineering Fundamentals (6 Credit Units)

This module explores the fundamental principles and practices of civil engineering. It provides students with an understanding of the main types of civil engineering structures and construction processes. It also covers the theory of statics and mechanics of materials, with applications to a range of environmental engineering projects.

Environmental Management Systems (2 Credit Units)

In this module, students will learn the application of concepts and principles in environmental management. Topics covered include the fundamentals of environmental impact assessment (EIA), environmental baseline studies (EBS), environmental management systems (EMS), ISO 14001, ISO 50001, environmental auditing and renewable energy.

Water Pollution & Reclamation Technology (4 Credit Units)

This module introduces students to sewage characteristics, sewer design and maintenance and unit operations in a conventional wastewater treatment plant. It covers the fundamentals of sewage collection systems for domestic wastewater, wastewater treatment technologies, monitoring and operation of wastewater treatment systems and the code of practice relevant to sewerage and wastewater treatment. Students will be given an overview of water pollution and impact of pollution on different types of waterbodies. Students will also learn about sludge treatment and disposal technologies. Emerging technologies in water reclamation and water recycling will be emphasised.

Workplace Safety & Health (3 Credit Units)

This module covers the relevant legislation and standards pertaining to workplace safety and health. Students will be taught to identify the various types of workplace hazards and the means of protection and control against these hazards. Topics include risk assessment and control, safety management systems, job safety analysis, accident reporting and investigation. Students will be issued WSHC recognized bizSAFE Level 2 certificates upon completion of this module.

World Issues: A Singapore Perspective^ (2 Credit Units)

Environmental Innovation & Research (8 Credit Units)

In this module, students are expected to integrate the knowledge they have gained in the earlier semesters to undertake an environmental project on a related topic in the field of water, environmental science and technology.

Environmental Laboratory 3 (3 Credit Units)

This module integrates the practical aspects of Water Supply Technology & Design and Industrial Wastewater & Membrane Technology. Students will harness their water treatment process units and utilities operations skills.

Industrial Wastewater & Membrane Technology (4 Credit Units)

Characteristics of industrial wastewater vary with the industrial process. Treatment methodology adopted varies with the type of wastewater. Membrane applications are taking an edge as a treatment option. Topics that will be covered include unit processes and treatment technologies applicable to industrial wastewater treatment and specific industrial wastewater case studies. Students will be introduced to membrane science and applications in environmental engineering. Membrane applications in water reclamation, recycling and reuse including desalination technology will be taught. Case studies will be used to illustrate specific industrial applications.

Project ID: Connecting The Dots^ (4 Credit Units)

6-Month Internship (20 Credit Units)

Students will be attached to organisations for a period of six months. This module will prepare them for future employment in their particular discipline of study. During their internship, they will undertake projects and tasks assigned by the organisations. This allows them the opportunity to take initiatives as well as to develop their soft skills.