Today, 1 in 6 people across the world do not have access to clean water, and a child dies from water -related disease every 20 seconds (UN News Center, 2014). GoodWater® focuses on driving simple and affordable water treatment solutions in partnership with NGOs (humanitarian and non-governmental organisations) as well as corporate alliances to propel into countries where there is a lack of accessibility to clean and safe drinking water.

Water Filtration via 3D Printing Technology for Social & Environmental Impact

Productivity is enhanced in the manufacturing world with each industrial revolution. We are currently experiencing a Third Industrial Revolution, spearheaded by 3D Printing. 3D printing refers to a range of layer-upon-layer manufacturing technologies, which allows components to be fabricated with few restrictions. This gives designers a number of different materials to choose from, and frees them from complexity and the need for tooling or machining. Areas that have used 3D printing to create objects include aeronautics, architecture, automotive, biomedicine and toys. However, minimum work has been reported so far for 3D printing in the field of water filtration.

GoodWater®, as a Solution Integrator creating value via Corporate Social/Sustainability Responsibility (CSR) programmes, has collaborated with Singapore Institute of Manufacturing Technology (SIMTech) to execute feasibility studies on fabrication of ceramic water filters using inkjet 3D printing technique so as to bring this product into existing developing markets.

This completed project has shown that it is feasible to produce ceramic filters using inkjet 3D printing technology together with sintering process. The porosity and the pore size of the investigated ceramic filters can be tuned in the ranges of 0-60% and 1-70 micron respectively. After filtration, the developed ceramic filters are used – this leads to water turbidity that is low enough to meet WHO standards (less than 5 NTU in full). Furthermore, the ceramic filters produced are comparable to the ceramic filters fabricated using conventional methods, in terms of physical properties and water filtration capacity.

Setup for filtration capacity test of inkjet 3D-printed EM ceramics

Portable Filtration Device for Safe Water Drinking  

In collaboration with Singapore Institute of Manufacturing Technology (SIMTech), GoodWater® is designing and developing a portable device for producing safe drinking water. This device comprises of a suction pump and hybrid filters. By pressing on the pump cap, the water source in the bottle is passed through hybrid filters and treated step by step (including the elements of twisted spring, fiber, effective micro-organism (EM) ceramic and charcoal). Filtrated safe drinking water is produced as a result.

This product has customized rubber parts for connecting various drinking bottles with maximum volume of 1 litre. Increased scalability can be achieved by modifying the design. The filtration device is suitable for travel use, camping and in particular, to provide those who reside at the bottom of pyramid (BOP), safe drinking water. This device can effectively last for a period of 6 to 24 months, depending on the usage frequency.

Portable Filtration Device for Safe Water Drinking

Nutrition Facts and Enzyme Activity of Coconut Water

This study aims to estimate the quantity of a few categories of nutrients present in coconut water, to determine a few physical properties which are relevant to the stability of coconut water. In light of the important effect of two enzymes, polyphenoloxidase (POD) and peroxidase (PPD), on the stability and sensory characteristics of coconut water, the activity of these two enzymes will also be investigated. Two additives, ascorbic acid and dehydroascorbic acid, will be added into fresh coconut water in order to evaluate their inhibitory effects on the two enzymes.

Green coconut water is the sterile, nutritious and refreshing drink taken directly from the inner part of coconut fruits. It is nearly isotonic, which attributes its therapeutic value. The physic-chemical composition of green coconut water has been well studied, and commonly found chemicals include sugars, proteins, phosphorus, potassium, sodium, lipids, phenolics, organic acids and etc. To enable the commercialization of green coconut water, one of the biggest challenges is to improve its shelf life and maintain its sensory characteristics.

The outcome of the study will outline the key finding & solutions to inactivate the enzymes and maintain the freshness of coconut water.