We report the detection of tryptophan at sub-ppb levels for a fluorometer based on Fresnel lenses and low-cost electronics. These fluorometers can be used to detect fecal contamination in drinking water, indicated by tryptophan-like fluorescence.

Drinking water utilities are responsible for providing safe drinking water. As water directly impacts public health, water utilities follow stringent water treatment standards and processes. However to keep pace with the dynamic environment and tackle challenges such as water stress, water pollution, …

Around 60% of drinking water in the Netherlands is from groundwater, often containing high concentrations of dissolved iron. This is generally removed by aeration, which is an important process in both drinking- and waste water treatment. The known disadvantages are high energy consumption relative to …

In the food industry water is commonly used in production. The egislation on water quality is focused on drinking water. The question arises: How should European producers of dry bulk food ingredients approach their decisions on process water quality considering production efficiency and the food safety …

Many people on Earth are hungry or do not have a reliable source of drinking water. Drought-tolerantcrops do not need much water to grow and therefor usable in regions where water is an issue. Cropbreeders are working on crops that are more drought-tolerant and grow faster. Corp …

Sustainable Urban Drainages Systems (SuDS) are designed to collect, store and infiltrate large amount of surface runoff water during heavy rainfall. Surface runoff water is known to transport pollutants such as particle bound heavy metals. Therefore, a build-up of pollutants in the top-soil, of the commonly …

Over the years, one disease that is increasingly common in society is the disease “depression”. This disease is often described by people as “it’s in your head and it doesn’t exist”. Previous studies have shown that more than 25 % of seafarers are dealing with symptoms of depression. These symptoms have …

This final research is conducted as a bachelor thesis of the programme Delta Management at the HZ University of Applied Sciences in Vlissingen, Netherlands and is executed at the Coastal Conservation Institute (ICC) in the coastal municipality of São Sebastião in Brazil. The municipality is located on …

Study about voluntary use of mobile apps to promote behaviour change presented at the Etmaal voor de Communicatiewetenschap

Nutrient enrichment, scientifically known as eutrophication, is a worldwide problem. Eutrophication is one of the main drivers for cyanobacteria blooms. Cyanobacteria blooms can have a negative effect on ecology, economy and human health, as a result of to the ability of some species to release toxins. …