Monitoring Water Quality & Quantity in Mining

Home , Water quality

© DHI Environmental monitoring monitoring Environmental MONITORING WATER QUA DHISOLUTION ADCPsystems, providing instant information about the flow, depthand velocity and stations and occasional measurements using flow meters.Today, DHI works with Traditionally,data on water quantityin rivershad been collected using water level WATERQUANTITY DATA severelychange the water quality. processand water. Finally, also ordinarywastewater from domestic household can alsocan be changed due to application of differenttypes ofchemicals to the mining metals,which are mobilisedby thechanges inpH. Besides acidity thewater quality usuallyalso connected tosubstantial changes in theconcentration of various conditionsin thewater, but it is by itself change thepH industrialuse. The acidity can downstream fordomestic or but alsoon water which is taken impacts noton just thebiology the mine aciddrainage ofthe minesor standardimpacts comes from such problems. Oneof the unfortunatelycreates various and the miningindustry leadto manytypes of impacts Changesinwater quality can relevantdata atWe DHI work with tailor mining:exploration, operation/productionand decommissioning. substantialneed to assess water quality and quantity conditions in all phasesof surfacewater coastal water, or process/wastewater and accordingly thereisa Wateris linkedto nearly every typeof miningindustry, whether groundwater,as amountofdata butnot knowledge. establishedwith the aim toknow everything, which eventually leads to enormous becan used forspecific actions. Too many monitoring programmeshave been do to this inan optimal way asso toprovide only thenecessary information,which aboutenvironmental conditions. itWhen comes to monitoringwater, essentialit is Regardlessof theproject, monitoring crucialis a element ofgaining knowledge ENVIRONMENTAL MONITO - tailing andtailing has multiple -

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tailor - made! made! LITY & QUANTITY IN MINING

SURFACE & GROUNDWATER / ENVIRONMENT & ECOSYSTEMS / ENVIRONMENT & GROUNDWATER SURFACE

SUMMARY companies associated and industry The mining CLIENT    VALUE   SOLUTION     CHALLENGE

part of the monitoring of the part data the relevant impacts Easier compliance with permits with compliance Easier data of delivery Fast costs monitoring of Optimisation state Applying tailor provide To of judgement sound scientifically Ensure regulations Fulfill the variables right Collect the quantity and quality water of Assessment

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DHI SOLUTION

a range of sensors for turbidity, temperature, oxygen and prepared to match the demands of the authorities. other variables. Such systems are of course online systems, We can engage with the authorities and ensure that the allowing the client to access the results 24/7. information delivered from our monitoring systems will fit with the demands of the public. WATER QUALITY DATA change like annual/seasonal or random. Eliminating variables, which do not provide information, is part of the DHI approach. We design and assess the programme and ensure that the client only gets what is necessary and accordingly to a price balancing the needs. As for water quantity, we build stations with online sensors and provide access to raw and processed data through our Global Data Handling Centre .

Longitudinal concentration plot for Ammonia along a river. BIOLOGICAL MONITORING There is a rising trend to use biological monitoring as well as From our experience, we know that many industrial operations water quality monitoring—the main reason being that are not judged correctly in terms of their impact from biological monitoring is capable of providing much better discharge, mainly due to the fact that upstream operations information about the actual state of the aquatic environment. and discharges, often from public sources, are not taken into The focus is mainly on benthic invertebrates and fish. account and hence the industrial operation is blamed for the whole load to the river, despite it being from upstream The key principle is that if the water quality conditions are fine, sources. We carry out, up-and downstream assessments then we will find a healthy invertebrate and fish community. If before we design a proper monitoring network. We also, to our there are contaminants, the communities will be impacted possible extent establish reference stations to provide data for and there will only be tolerant species or, in severe cases, no comparison. animals at all. The fish and invertebrates live all their life in the aquatic system and are thus continuously exposed to the 91 - 100 % Coverage water quality conditions. Therefore, biological monitoring 6138000 51 - 90 % Coverage 21 - 50 % Coverage provides information about the long-term conditions in the 01 - 20 % Coverage

water, as opposed to water quality monitoring, which provides 6136000 information in snap-shot-mode.

6134000 DHI OFFERS TAILOR-MADE MONITORING 6132000 Being a water and environment consultant for more than 40 years has taught us at DHI, how to optimise monitoring 6130000 programmes on all levels. programmes at all levels. We are running national and international monitoring stations for rivers 6128000

and oceans and are providing water forecasts for ports, 496000 498000 500000 502000 504000 506000 508000 510000 terminals, oil and construction operations, globally. Assessment, based on biological monitoring of Common Mussel, done in association with building bridge facilities in Our experience benefits your operation and optimise your Denmark. monitoring network to ensure a smooth operation. The data gathered through various channels will be analysed and

Contact: Jesper Dannisøe - [email protected] or