ALD

(redirected from Anoxic Limestone Drain)
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AcronymDefinition
ALDAtomic Layer Deposition (method to produce conformal thin films)
ALDAdults with Learning Disabilities
ALDAdults with Learning Difficulties (social services)
ALDAlderman
ALDAdrenoleukodystrophy (genetic disease)
ALDAt a Later Date
ALDAtomic-Layer Deposition
ALDAlcohol(ic) Liver Disease
ALDAlderson (Amtrak station code; Alderson, WV)
ALDArapahoe Library District (Englewood, CO)
ALDAssociation of Lighting Designers
ALDAdministrative Law Division (various locations)
ALDAffection de Longue Durée (French: Long Term Illness)
ALDAssistive Listening Device
ALDAlpha Lambda Delta (National freshman honors society)
ALDAssistant Laboratory Director
ALDAirborne Laser Designator (US DoD)
ALDAcademy of Laser Dentistry
ALDAlderney
ALDAngular Light Distribution
ALDAdvanced Logistics Development (various companies)
ALDArakan League for Democracy
ALDÀ l'Attention De
ALDAnoxic Limestone Drain (passive treatment for remediation of acid mine drainage)
ALDAmerican Library Directory
ALDAvailable-to-Load Date
ALDApproximate Lethal Dose
ALDAssistant Lighting Designer (theatre)
ALDAppointment of Limited Duration
ALDAvailable Landing Distance (aviation)
ALDAmerican Law Division (Congressional Research Service)
ALDAcoustic Leak Detection
ALDArch Length Discrepancy (dentistry)
ALDAccounting Line Designator
ALDAlarm Display
ALDAviation Logistics Department
ALDAnalog Line Driver
ALDArrêt Longue Durée
ALDAir Lift Division
ALDAirborne Laser Demo
ALDAcquisition Logistics Division
ALDAviation Logistics Division
ALDAzimuthal Lithodensity (trademark of Halliburton)
ALDAssembly Line Diagram
ALDAssign Local Distribution
ALDAdvanced Laser Designator
ALDAverage Link Duration
ALDAccelerated Life Data
ALDAutomatic Louver Damper (HVAC systems)
ALDAutomatic Logic Diagram
ALDAcquisition Logistics Documents
ALDAircraft Logistics Department
ALDAvailable-to-Load Data
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References in periodicals archive ?
Scheme 2 is an anaerobic cell with anoxic limestone drain pretreatment and this has performed the best so far with removal of up to 95% of the incoming zinc, cadmium and copper.
Now the trend is to use passive treatment systems, such as aerobic or compost wetlands, open limestone channels, diversion wells, or anoxic limestone drains. The park worked with a consultant to complete blueprints for treatment systems for the nine mine openings responsible for the worst pollution.