Core water treatment objectivesHardness control: total hardness of circulating water ≤150mg/L (calculated as CaCO₃)Scaling inhibition: Langelier index (LSI) <1.0Microbial control: total number of heterotrophic bacteria <…
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Core water quality control objectivesMicrobial limit: total bacteria <100CFU/mL (<10CFU/mL for medical use)Scale control: Langelier index (LSI) <0.5Conductivity requirements: steam humidification ≤5μS/cm, gasification…
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TSS pollution characteristics and control requirementsTSS concentration in industrial wastewater is usually 200-2000mg/L (up to 5000mg/L in food/printing and dyeing industries)Discharge limit: primary standard ≤70mg/L, centrali…
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Pollution characteristics and risk controlDivalent manganese (Mn⁺) is commonly found in groundwater (concentrations often reach 0.1-2.0 mg/L)Exceeding 0.1 mg/L will cause black water in pipes (national standard limit 0.1 mg/L)L…
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Pollution characteristics and risk thresholdsGeological dissolution leads to sulfate enrichment in natural water bodies (concentrations often reach 100-500 mg/L)Causes gastrointestinal discomfort when exceeding 250 mg/L (nationa…
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Analysis of the mechanism of odor generationHydrogen sulfide pollution: sulfate reduction reaction in anaerobic environment (concentration>0.05mg/L produces rotten egg smell)Algae metabolites: eutrophic water releases geosmin…
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