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Van Dijk, M.J. (author), Rientjes, T.H.M. (author)
The study area of this case study is the river basin of the Mananga river, one of the main rivers on Cebu-island, the Philippines. Today the Mananga is used as discharge river, in the near future this river may be used for drinking water purposes of the region around Cebucity, some 25 kilometres east of the Mananga catchment. This catchment area...
report 1993
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Van Dijk, M.J. (author), Rientjes, T.H.M. (author)
At present, the collection of environmental information is increasing in importance. Environmental modelling and defining measures relating to environmental protection policies are usually taken on the basis of the collected information. Especially in the more developed countries, hydrologists and meteorologists are in this respect privileged...
report 1994
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Van Dijk, K. (author), Boedianto, P. (author), Te Dorsthorst, B.J.H. (author), Kowalczyk, T. (author)
journal article 2001
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Verhagen, H.J. (author), Van Dijk, B. (author), Nederpel, A. (author)
Medium height breakwaters are subjected to a considerable amount of overtopping. This implies the armour on the inner slope has to stable against overtopping waves. Existing equations do lack some basic understanding of the process of starting up movement of rock on the inner slopes. In case one relates the stability of the blocks on the inner...
conference paper 2003
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Verhagen, H.J. (author), Van Dijk, B. (author), Nederpel, A. (author)
Medium height breakwaters are subjected to a considerable amount of overtopping. This implies the armour on the inner slope has to stable against overtopping waves. Existing equations do lack some basic understanding of the process of starting up movement of rock on the inner slopes. In order to get more insight into this phenomenon a special...
conference paper 2003
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Van Dijk, K. (author)
doctoral thesis 2004
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Van Dijk, J.C. (author), Van der Meulen, M. (author)
report 2006
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Van Dijk, T. (author)
Crop yields in the hilly north of Tanzania could do with some improvement. Researchers at Delft University of Technology together with local farmers are mapping the water system and developing new irrigation techniques. Were sparring partners for the farmers
journal article 2007
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Teunissen, K. (author), Abrahamse, A. (author), Leijssen, H. (author), Rietveld, L. (author), Van Dijk, H. (author)
Iron is the primary source for discolouration problems in the drinking water distribution system. The removal of iron from groundwater is a common treatment step in the production of drinking water. Even when clear water meets the drinking water standards, the water quality in the distribution system can deteriorate due to settling of iron ...
journal article 2008
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Blokker, E.J.M. (author), Vreeburg, J.H.G. (author), Buchberger, S.G. (author), Van Dijk, J.C. (author)
Today, there is a growing interest in network water quality modelling. The water quality issues of interest relate to both dissolved and particulate substances. For dissolved substances the main interest is in residual chlorine and (microbiological) contaminant propagation; for particulate substances it is in sediment leading to discolouration....
journal article 2008
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Smeets, P.W.M.H. (author), Medema, G.J. (author), Van Dijk, J.C. (author)
The Netherlands is one of the few countries where chlorine is not used at all, neither for primary disinfection nor to maintain a residual disinfectant in the distribution network. The Dutch approach that allows production and distribution of drinking water without the use of chlorine while not compromising microbial safety at the tap, can be...
journal article 2009
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Van Halem, D. (author), Bakker, S.A. (author), Amy, G.L. (author), Van Dijk, J.C. (author)
For more than a decade it has been known that shallow tube wells in Bangladesh are frequently contaminated with arsenic concentrations at a level that is harmful to human health. By now it is clear that a disaster of an unheard magnitude is going on: the World Health Organization has estimated that long-term exposure to arsenic in groundwater,...
journal article 2009
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Li, S. (author), Heijman, S.G.J. (author), Verberk, J.Q.J.C. (author), Van Dijk, J.C. (author)
A new treatment concept for drinking water production from surface water has been investigated on a pilot scale. The treatment concept consists of fluidized ion exchange (FIEX), ultrafiltration (UF), nanofiltration (NF), and granular activated carbon filtration (GAC). The FIEX process removed calcium and other divalent cations; the UF membrane...
journal article 2009
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Blokker, E.J.M. (author), Vreeburg, J.H.G. (author), Beverloo, H. (author), Klein Arfman, M. (author), Van Dijk, J.C. (author)
An “all pipes” hydraulic model of a DMA-sized drinking water distribution system was onstructed with two types of demand allocations. One is constructed with the conventional op-down approach, i.e. a demand multiplier pattern from the booster station is llocated to all demand nodes with a correction factor to account for the average water emand...
journal article 2010
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Van der Aa, L.T.J. (author), Rietveld, L.C. (author), Van Dijk, J.C. (author)
Four pilot (biological) granular activated carbon ((B)GAC) filters were operated to quantify the effects of ozonation and water temperature on the biodegradation of natural organic matter (NOM) in (B)GAC filters. Removal of dissolved organic carbon (DOC), assimilable organic carbon (AOC) and oxygen and the production of carbon dioxide were taken...
journal article 2010
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Blokker, E.J.M. (author), Vreeburg, J.H.G. (author), Beverloo, H. (author), Klein Arfman, M. (author), Van Dijk, J.C. (author)
An “all pipes” hydraulic model of a drinking water distribution system was constructed with two types of demand allocations. One is constructed with the conventional top-down approach, i.e. a demand multiplier pattern from the booster station is allocated to all demand nodes with a correction factor to account for the average water demand on...
journal article 2010
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Van der Aa, L.T.J. (author), Rietveld, L.C. (author), Van Dijk, J.C. (author)
Four pilot (biological) granular activated carbon ((B)GAC) filters were operated to quantify the effects of ozonation and water temperature on the biodegradation of natural organic matter (NOM) in (B)GAC filters. The removal of dissolved organic carbon (DOC), assimilable organic carbon (AOC) and oxygen and the production of carbon dioxide were...
journal article 2011
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Van Dijk, H. (author)
public lecture 2011
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De Moel, P.J. (author), Van Dijk, J.C. (author), Van der Meer, W. (author)
journal article 2012
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Marques Arsenio, A. (author), Vreeburg, J.H.G. (author), Bouma, F. (author), Van Dijk, J.C. (author)
In 2010 the Dutch drinking water network stretched for almost 116,000 km supplying water to more than 16 million people. Almost 50% was made of PVC. The analysis of the failure registration of 5 Dutch drinking water companies showed that ca. 29 % of the total number of failures in the PVC Dutch network is detected at joints. In the Netherlands,...
conference paper 2012
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