Leachate characteristics and treatment difficultiesFormation mechanism:Rainwater infiltration (accounting for ≥70%) and waste biochemical reaction liquidTypical pollutant concentrations:COD: 5,000-60,000 mg/LNH₃-N: 500-3,000 m…
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Characteristics and risk control of zincSource characteristics:Zinc content in galvanizing process wastewater: 50-200mg/LPeak zinc concentration in metal processing wastewater: ≥500mg/LHealth threshold:Drinking water zinc limit…
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Characteristics and hazards of hydrogen sulfideGeneration mechanism: Sulfate-reducing bacteria (SRB) decompose organic sulfide in an anaerobic environmentTypical scenarios:Concentration in oilfield produced water reaches 50-200m…
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The Langelier Saturation Index (LSI) is a set of water quality parameters that indicate the corrosiveness of the feed water, thus ensuring the stability of the water quality. The LSI helps determine the cause of occasional chang…
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Essential technical differencesCore functions of softening water systemSelectively remove calcium and magnesium ions (Ca⁺/Mg⁺) through ion exchange resin, with a hardness removal rate of over 99%, but it cannot intercept pollu…
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Core treatment objectivesControl scale index (LSI≤0.5)Inhibit corrosion rate (carbon steel <0.075mm/a)Kill microorganisms (total number of heterotrophic bacteria <110⁵ CFU/mL)Key components of the systemPretreatment unit…
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