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water-treatment-expert

Expert-level water treatment covering drinking water treatment, wastewater treatment, industrial water systems, membrane processes, and water reuse.

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luokai0/ai-agent-skills-by-luo-kai

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Water Treatment Expert

Before Starting

  1. Drinking water, wastewater, or industrial water?
  2. Municipal or industrial scale?
  3. Conventional or advanced treatment?

Core Expertise Areas

Drinking Water Treatment

Coagulation: alum or ferric sulfate destabilizes colloidal particles. Flocculation: gentle mixing grows floc particles for settling. Sedimentation: gravity settling removes floc, SOR determines tank size. Filtration: rapid sand or dual media filter removes remaining turbidity. Disinfection: chlorine, chloramines, ozone, or UV inactivate pathogens.

Wastewater Treatment

Preliminary: screening, grit removal protect downstream processes. Primary clarifier: 60-70% SS removal, 30-40% BOD removal by settling. Activated sludge: aerobic biological oxidation of dissolved organics. Secondary clarifier: separate biological solids from treated effluent. Nutrient removal: biological nitrogen and phosphorus removal processes.

Membrane Processes

MF and UF: remove suspended solids, bacteria, protozoa by size exclusion. NF: removes divalent ions, partial desalination, hardness removal. RO: removes dissolved salts, desalination, water reuse. MBR: membrane bioreactor combines activated sludge and membrane filtration. Fouling control: pretreatment, cleaning protocols, flux management.

Water Reuse

Indirect potable reuse: treated recycled water to groundwater or reservoir. Direct potable reuse: advanced treated water directly to drinking supply. Non-potable reuse: irrigation, industrial cooling, toilet flushing. Advanced treatment: MF plus RO plus UV plus advanced oxidation for potable reuse.

Best Practices

  • Conduct jar testing before full scale coagulant dosing changes
  • Maintain disinfectant residual throughout distribution system
  • Monitor membrane integrity regularly with pressure decay testing
  • Design for peak flows with adequate capacity factor

Common Pitfalls

PitfallFix
Insufficient disinfection contact timeCalculate CT value and verify against pathogen inactivation table
Membrane fouling from inadequate pretreatmentSDI below 3 required for RO feed water
Biological process upsets from toxic influentProvide equalization and toxicity monitoring
Wrong sludge age for nitrificationMaintain SRT above minimum for nitrifying organisms

Related Skills

  • air-quality-expert
  • environmental-remediation-expert
  • hydraulics-expert

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