Modelling of sediment treatment and disposal scenarios in the Netherlands

1998 ◽  
Vol 37 (6-7) ◽  
pp. 363-369 ◽  
Author(s):  
J. M. Gadella ◽  
A. Honders
Keyword(s):  
The Netherlands ◽  
Input Data ◽  
Ex Situ ◽  
Attractive Alternative ◽  
Dredged Sediments ◽  
Sediment Treatment ◽  
Physical Composition ◽  
Treatment And Disposal ◽  
Modelling Study

This paper discusses the results (in terms of costs, reuse of sand and reduction of disposal volume) of a modelling study on various disposal and sand separation scenario's. The model is based on the following input data: (i) the quantity of annually dredged sediments divided over four types of sediment; (ii) the physical composition of these four types of sediment; (iii) the costs for wet disposal and sand separation. Based on the input data of the model, the SCG concludes that sand separation is an environmentally and economically attractive alternative for disposal. The costs for sand separation are in the same range as the costs for disposal, even at relatively low disposal costs (10–20 US $ per m3 ex-situ). Therefore large savings on both disposal volume and primary sand seems achievable.

scholarly journals Calibration and Validation of ArcGIS Solar Radiation Tool for Photovoltaic Potential Determination in the Netherlands

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1865
Author(s):  
Bala Bhavya Kausika ◽  
Wilfried G. J. H. M. van Sark
Keyword(s):  
Solar Radiation ◽  
The Netherlands ◽  
Urban Areas ◽  
Input Data ◽  
Solar Irradiation ◽  
Energy Yield ◽  
Atmospheric Parameters ◽  
Factors Affecting ◽  
Calibration And Validation ◽  
Solar Radiation Model

Geographic information system (GIS) based tools have become popular for solar photovoltaic (PV) potential estimations, especially in urban areas. There are readily available tools for the mapping and estimation of solar irradiation that give results with the click of a button. Although these tools capture the complexities of the urban environment, they often miss the more important atmospheric parameters that determine the irradiation and potential estimations. Therefore, validation of these models is necessary for accurate potential energy yield and capacity estimations. This paper demonstrates the calibration and validation of the solar radiation model developed by Fu and Rich, employed within ArcGIS, with a focus on the input atmospheric parameters, diffusivity and transmissivity for the Netherlands. In addition, factors affecting the model’s performance with respect to the resolution of the input data were studied. Data were calibrated using ground measurements from Royal Netherlands Meteorological Institute (KNMI) stations in the Netherlands and validated with the station data from Cabauw. The results show that the default model values of diffusivity and transmissivity lead to substantial underestimation or overestimation of solar insolation. In addition, this paper also shows that calibration can be performed at different time scales depending on the purpose and spatial resolution of the input data.

scholarly journals Effects of changing land use in the Netherlands on net carbon fixation.

1991 ◽  
Vol 39 (4) ◽  
pp. 237-246 ◽  
Author(s):  
J. Wolf ◽  
L.H.J.M. Janssen
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
The Netherlands ◽  
Input Data ◽  
Carbon Fixation ◽  
Arable Land ◽  
Rate Of Change ◽  
Pool Size ◽  
Average Amount

The changed crop rotation on arable land, the decreasing grassland area and the increase in forest area in the Netherlands resulted in a decrease in C pool size. For the calculation of this C pool a method requiring only three input data (average amount of crop or tree residue rate, soil organic matter decomposition and the humification coefficient) has been applied. However the method can only be applied to situations in equilibrium where all three input data are equal. For a changing land use a new state of equilibrium and rate of change in C pool size can be calculated. (Abstract retrieved from CAB Abstracts by CABI’s permission)

BEACH CLEANING TESTS IN THE NETHERLANDS AT HOOK OF HOLLAND, SEPTEMBER-OCTOBER 1980

1983 ◽  
Vol 1983 (1) ◽  
pp. 273-277
Author(s):  
A. van Eden
Keyword(s):  
The Netherlands ◽  
Working Group ◽  
Oil Spills ◽  
Oil Pollution ◽  
Public Works ◽  
Wide Range ◽  
Other Substances ◽  
Set Up ◽  
Treatment And Disposal ◽  
Beach Pollution

ABSTRACT In 1978, the Dutch Minister of Transport and Public Works set up a national working group to look into the question of heavy oil pollution of the Dutch coast. This working group was given the task of selecting, from the wide range available, those methods for cleanup, treatment, and disposal of oil pollution which would be best suited for use in the Netherlands and give the best results in combating coastal oil pollution. At the same time, it was to draw up a contingency plan and inventory the facilities available. Experiments to determine the best method of combating beach pollution caused by oil spills were undertaken with the following objectives in mind:Testing of preventive measures to limit beach pollution, such as herders, straw bales, sand embankments, and plastic linersTesting of various methods of removing oil (mousse) from the beachTesting of various methods for the final cleaning of a beach from which oil has been removed by dispersants, demulsifiers, etc.Testing of various preliminary treatments enabling better and more efficient transport of oil and making it more suitable for further processing. Mousse-breaking additives and other substances were tested thoroughly in this respect.1Testing of various methods for dealing with the collected oil, such as incineration in suitable installations The experience gained from the tests and the results achieved were evaluated and substantial conclusions drawn. The working group now is in a position to give useful advice to the various coastal municipalities so that they will be able to combat coastal oil pollution more efficiently. This has been done.

Development of Surface Marker System for the Observation of Microstructural Changes in Nuclear Graphite using Micro X-ray Tomography

2012 ◽  
Vol 1475 ◽  
Author(s):  
Rosemary A. Holmes ◽  
Abbie N. Jones ◽  
Lorraine McDermott ◽  
Barry Marsden
Keyword(s):  
Thermal Treatment ◽  
Nuclear Energy ◽  
Ex Situ ◽  
X Ray ◽  
Power Stations ◽  
Nuclear Graphite ◽  
Irradiated Graphite ◽  
The Matrix ◽  
Treatment And Disposal ◽  
The Uk

ABSTRACTCurrent energy demands and future energy needs are a growing industry which at present attracts a large amount of research and investment of which nuclear energy is an integral part. Eight new nuclear stations are proposed to be developed in the UK over the next ten years to meet this demand. In order for nuclear energy to sustain growth and development, nuclear decommissioning of first and second generation power stations needs to be addressed in the U.K. and worldwide. Presently the UK has 36 graphite moderated reactors as a result of the UK military and civil programs, which over the next twenty years will close. This will result in ∼99’000 tonnes of irradiated graphite waste for which no current national decommissioning strategy exists. The main issues associated with this waste are the large volume and activation products associated. By far the greatest inventory is from 3H and 14C. An EU Euroatom FP7 Program; CARBOWASTE was established in 2008 with the aim of developing treatment and disposal options for graphite.This research is based within CARBOWASTE, the main objectives are to understand the mechanisms involved in the production, location and removal of radioisotopes from nuclear graphite. Computed X-ray Tomography (CT) will be used in order to quantify the initial porosity in conjunction with thermal treatment (ex situ) in order to eventually identify the location of 14C within the matrix of irradiated graphite, through the preferential chemically controlled oxidation of graphite. Unirradiated Pile Grade A graphite samples have been laser and manually marked in order align the samples prior to and post thermal treatment to determine the degree of porosity changes and weight loss under a range of thermal oxidation parameters.

scholarly journals Thermal evolution and shale gas potential estimation of the Wealden and Posidonia Shale in NW-Germany and the Netherlands: a 3D basin modelling study

2015 ◽  
Vol 28 (1) ◽  
pp. 2-33 ◽  
Author(s):  
B. Bruns ◽  
R. Littke ◽  
M. Gasparik ◽  
J.-D. van Wees ◽  
S. Nelskamp
Keyword(s):  
The Netherlands ◽  
Shale Gas ◽  
Thermal Evolution ◽  
Nw Germany ◽  
Basin Modelling ◽  
Posidonia Shale ◽  
Gas Potential ◽  
Modelling Study

scholarly journals The transmission potential of Rift Valley fever virus among livestock in the Netherlands: a modelling study

2013 ◽  
Vol 44 (1) ◽  
pp. 58 ◽  
Author(s):  
Egil AJ Fischer ◽  
Gert-Jan Boender ◽  
Gonnie Nodelijk ◽  
Aline A de Koeijer ◽  
Herman JW van Roermund
Keyword(s):  
The Netherlands ◽  
Rift Valley ◽  
Rift Valley Fever ◽  
Rift Valley Fever Virus ◽  
Fever Virus ◽  
Valley Fever ◽  
Transmission Potential ◽  
Modelling Study

Treatment and Disposal of Municipal Sludge in The Netherlands

1993 ◽  
Vol 7 (2) ◽  
pp. 116-120 ◽  
Author(s):  
F. van VOORNEBURG ◽  
H. J. van VEEN
Keyword(s):  
The Netherlands ◽  
Municipal Sludge ◽  
Treatment And Disposal
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