What are THMs?Trihalomethanes (THMs) are byproducts of the chlorination process of drinking water and are commonly found in surface water sources that contain organic matter. These compounds are formed when chlorine reacts with…
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What are VOCs?Volatile organic compounds (VOCs) are a class of carbon-containing compounds that evaporate easily from water into the air at normal temperatures and pressures. This is why the smell of substances such as gasoline…
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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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