water pollution graphs

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DATA I

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Outfall data:

An outfall is a pollutant point source. The outfall is small if we compare it with the size of the area in which we are simulating (point source). If you click this button, the next dialog box is shown:

Depending on the used model, some data of the dialog box can be modified: Buoyant jet model or Stratified model (see calculation models).

Buoyant jet model: The necessary data in the Buoyant jet model is:

Effluent velocity u_a(m/s): The average velocity of the pollutant effluent. It can be around 1 m/s.

Pollutant concentration (g/m³): The discharge concentration of the material of interest (pollutant or tracer) is defined as the excess concentration above any ambient concentration of that same material. 1g/m³=1ppm in water.

Water depth at discharge location (m): The actual water depth at the sumerged discharge location. For surface discharges it is the water depth at the channel entry location.

Discharge flow rate (m³/s): The discharge flow rate and the discharge velocity are related through the port cross-sectional area. (Flow rate)=(area)x(discharge velocity).

Discharge density (kg/m³): It is the density of the pollutant discharge.

Discharge conditions: There are three options: Vertical discharge, Horizontal discharge (A-type) and Horizontal discharge (B-type). In the vertical discharge, the discharge flow is perpendicular to the water surface. In the horizontal discharges (A and B), the discharge flow is parallel to the water surface. In the horizontal discharge case, we assume that the discharge vector is always perpendicular to current vector. That is to simplify the calculations. In the A-type, the flow vector points the South and the current vector points the East. In the B-type, the flow vector points the North and the current vector points the East.

Stratified model: The necessary data in the Stratified model is:

Pipe angle (0 to 360): It is the horizontal angle of discharge measured clockwise from the North (at the window top).

Diffusor length (m): The diffuser length is the distance from the first to the last port or nozzle.

1/T90 (1/horas): This coefficient considers the half life of the pollutant if this disappears by means of chemical reactions (non-conservative pollutant). This is the T90 for E.Coli. For towns with less than 10.000 inhabitants we can take a T90=2 hours (1/T90=0,5 hours^-1) in the Mediterranean and T90=3 hours (1/T90=0,33 hours^-1) in the Atlantic.

Number of openings: DESCAR allows for different types of discharge geometries. There are three options: Single port, Multiport diffuser and Separated ports. We have a multiport diffuser when the separation among the ports is less than 3% of the depth. We have Separated ports when the separation among the ports is bigger than 20% of the water depth.

INPUT DATA: Data I - Data II - Data III - Import - Commands - Graphs I - Graphs II

Canarina Algoritmos Numéricos, S.L.

Environmental software solutions

Software for environmental impact

Canary Islands, Spain

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European network on pollution · European Union

Member of MAPO: European network on Marine Pollution. Project

funded by the European Commission through the

6th Framework Programme for Research and Development

pollution of water

CANARINA: Home - Air pollution · DISPER - Noise pollution · CUSTIC - Water pollution · DESCAR - Contact us

DESCAR: DESCAR: water pollution - Data I - Algorithms I - Pollutants I

SOLUTIONS: DESCAR: water pollution - Advantages - Price

INPUT DATA: Data I - Data II - Data III - Import - Commands - Graphs I - Graphs II

ALGORITHMS: Algorithms I - Algorithms II - Algorithms III - Algorithms IV - Algorithms V - Algorithms VI

POLLUTANTS: Pollutants I - Pollutants II - The sea I - The sea II - Pycnocline

DESCAR software solutions: This application has been used in great number of environmental reports, courses and water pollution studies in the last years. We currently have users in more than 10 countries.

Derbyshire - thermal simulation - dispersion simulation - water pollution graphs

Dorset - water quality - environmental auditing software

Plymouth - flat water discharge hose - oil water separator discharge - brown water discharge -

Portsmouth - water pollution discharge - oil water discharge - sea water discharge - water pollution graphs

Preston - effluent water discharge - process water discharge - water discharge laws - water pollution graphs

Ripon - water discharge data - waste water discharge regulations - water discharge license - water pollution graphs

Salford - discharge of surface water - waste water discharge limits - submarine ground water discharge -

Salisbury - water flow discharge - discharge where the water table intersects the ground surface -

Sheffield - water discharge measurements - discharge of ground water - salt water discharge - water pollution graphs

St Albans - water discharge guidelines - storm water discharge permits - surface water discharge limits -

St David's - foul water discharge - mine water discharge - wash water discharge -

Stirling - surface water discharge permit - water discharge monitoring - water discharge definition -

Stoke-on-Trent - water discharge unit - water heater discharge line - water based discharge -

Sunderland - effluent reuse - municipal discharge - effluent contamination -

Swansea - effluent equipment - effluent pollution - activated sludge effluent -

Truro - effluent recycling - industrial discharge - effluent waste water -

Wakefield - sewage treatment effluent - effluent sludge - lime discharge -

Wells - effluent treatment plant - river discharge - discharge water -

Westminster - effluent water treatment plant - effluent waste - effluent wastewater -

Winchester - effluent sewerage - effluent sewage - effluent sewer -

Wolverhampton - effluent plant - effluent filter - effluent treatment -

Worcester - effluent tanks - effluent filtration - sewage treatment discharge -

York - effluent waste water treatment - effluent removal - effluent pumps -

Aberdeen - simulation modeling - heat transfer flow - fluent flow modeling -

Armagh - fluid diffusion - fluid flow visualization - fluid flow heat transfer -

Cornualles - fluid flow equation - environmental auditing software

Somerset - modeling theory - fluid equation -

Nottingham - thermal flow - unsteady flow modeling - fluid flow study -

Bangor - fluid flow cylinder - turbulence flow - fluid flow simulations -

Bath - flow dynamics - fluid simulation - fluid flow dynamic -

Belfast - fluid flow analysis - heat transfer fluid - fluid flow mechanics -

Birmingham - heat transfer modeling - fluid flow theory - fluid flow simulation -

Bristol - fluid transport - heat flow - flow simulation -

Cambridge - flow equations - dynamic modeling - analysis modeling -

Bradford - temperature flow - flow method - fluid flow modeling -

Brighton & Hove - modeling methods - flow calculation - flow analysis -

Cumbria - fluid dynamics modeling - environmental auditing software

Suffolk - fluid models - modeling method - pipe flow -

Suffolk - diffusion simulation - environmental auditing software

Cornualles - flow visualization - thermal simulation -

Somerset - fluid flow simulator - numerical flow simulation - heat transfer simulation -

Shropshire - hydrodynamic simulation - flow mechanics -

Bangor - simulation dynamics - simulation modelling - physics simulation -

Bath - flow models - liquid flow - flow transient -

Belfast - fluid flow simulation - water flow simulation - fluid flow simulation software -

Aberdeen - mixing simulation - simulation engineering - simulation models -

Armagh - computational simulation - dynamic simulation - dispersion simulation -

Cumbria - fflow simulation software - environmental auditing software

North Yorkshire - flow calculation - flow viscosity -

Norfolk - sewage water treatment -

Suffolk - water treatment works - water treatment supply -

Derbyshire - water treatment process - industrial water treatment -

Copyright © 2005 Canarina Algoritmos Numéricos, Sociedad Limitada Unipersonal CIF-B38803110 registered for electronic commerce in sheet TF-35526, sheet 1 of the volume 2.671 of the General Section, First Registration, Registro de la Propiedad Número 2 y Marcantil of , Spain. All rights reserved.