Absolute Filtration Technology StandardDefinition and Classification StandardsAbsolute filtration refers to the retention rate of the filter element for target particle size being ≥99.9% (β value ≥1000), with the following co…
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The water treatment mechanism in the absorption processCore definitions and mass transfer principlesAbsorption refers to the process by which contaminant molecules dissolve through a phase interface and diffuse into the bulk liq…
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Environmental Behavior and Control of Acidic AerosolsFormation mechanism and physical propertiesAcid aerosol refers to liquid/solid acidic particles with an aerodynamic diameter of ≤2.5μm (PM₂.₅), and its core characteristic…
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Chemical significance of acid neutralization capacity (ANC)Definition and mechanismAcid neutralization capacity (ANC) characterizes the buffering strength of water bodies against pH decline, with the core mechanism being:Carbona…
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Acid rain formation mechanism and ecological impactCauses and chemical processesDefinition: Atmospheric precipitation with pH < 5.6 (natural rainwater pH = 5.6)Human sources (accounting for ＞70%):Coal combustion releases: SO…
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Acidic Water Causes and Treatment TechnologiesDefinition and Formation MechanismAcidity Determination: pH < 7.0 (Standard Conditions at 25℃)Natural Causes:Atmospheric precipitation: CO₂ + H₂O → H₂CO₃ (carbonic acid, pH≈…
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