Model-based prediction of fluid bed state in full-scale drinking water pellet softening reactors

Softening at drinking water treatment plants is often realised by fluidised bed pellet reactors. Generally, sand is used as seeding material and pellets are produced as a by-product. To improve to sustainability, research has been carried out to replace the seeding material by re-using grained and sieved calcite pellets as seeding material. An...

Developing water and sanitation services in refugee settings from emergency to sustainability - The case of Zaatari Camp in Jordan

Developing water and sanitation services in refugee settings from emergency to sustainability - The case of Zaatari Camp in Jordan

Three years after Zaatari camp was established in the Hashemite Kingdom of Jordan, to host Syrian refugees, its population has grown to 82,000 persons. Zaatari is one of the largest refugee camps in the world, in one of the most water scarce areas on earth. Since its establishment, drinking water has been delivered by trucks to communal...

On-line monitoring of ozonation through estimation of Ct value and AOC formation with UV/Vis spectrometry

The application of ozone in water treatment serves many purposes, such as disinfection, degradation of organic micro-pollutants and oxidation of taste, odour and colour producing compounds. A commonly used method to determine the disinfection capacity of ozonation is calculating the exposure of pathogens to ozone, this capacity is expressed as...

Water Law and Organization (Dutch version)

Lecture notes in DUTCH for course CIE5500, providing a detailed overview of Dutch and European water law concerning surface and groundwater, the North Sea and the Wadden Sea, water services, flood protection, spatial planning, nature protection, water management organizations (e.g. the water boards), financing and legal protection....

Higher energy efficiency and better water quality by using model predictive flow control at water supply systems

Half of all water supply systems in the Netherlands are controlled by model predictive flow control; the other half are controlled by conventional level based control. The differences between conventional level based control and model predictive control were investigated in experiments at five full scale water supply systems in the first half of...

Subsurface iron and arsenic removal for drinking water treatment in Bangladesh

Arsenic contamination of shallow tube well drinking water is an urgent health problem in Bangladesh. Current arsenic mitigation solutions, including (household) arsenic removal options, do not always provide a sustainable alternative for safe drinking water. A novel technology, Subsurface Arsenic Removal, relies on the existing technology of...

Integrated modeling of ozonation for optimization of drinking water treatment

Drinking water treatment plants automation becomes more sophisticated, more on-line monitoring systems become available and integration of modeling environments with control systems becomes easier. This gives possibilities for model-based optimization. In operation of drinking water treatment plants, the processes are usually optimized...

Leven met de overstromingen 2007

Introduction In May 2006 many rivers and creeks in the interior of Suriname caused flooding and a lot of inhabitants were surprised by the water. Over 22,000 people were struck in a way that their houses were (temporarily) uninhabitable. In the most places the duration of the flooding was limited to three to six days, after that the waterlevel...

Improving operation of drinking water treatment through modelling

Drawdown due to ground-water abstraction with straight lines of wells

Calculation of ground water flow and lowering of the phreatic surface due to pumping of ground waters, with a focus on drinking water.

Bijdrage tot het oordeelkundig beheer van het duinwaterkapitaal

Investigation on the use of groundwater storage for drinking water in the dune area near Leiden, Netherlands. Optimization of the ratio of infiltration and extraction of drinking water

Over grondwaterstroomingen bij wateronttrekking door middel van putten

Calculation method for groundwaterflow in case of subraction of groundwater via vertical pumping wells for drinking water purposes. Both permanent and instationary pumping are considered.