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Find research, tools, applications, process designs, and current intelligence from one engineering search.

Start with a discovery path

Research Tools Applications Process Design Intelligence

Start with a discovery path
Process design — engineering workflows

Make the treatment train visible before sizing

Start with an application, objective, or discipline. Trace the stages, the engineering questions, and the ATLAS tools and research that support the next decision.

01Choose an engineering starting point

Choose an engineering starting point

The filters narrow one shared workflow library. The process train stays the primary interface.

01Application
02Treatment System
03Discipline

02Workflow Library

Workflow Library

7 workflows in this view

Municipal Drinking Water Purification

A multi-barrier route for source-water characterization, conditioning, solids control, targeted advanced treatment, disinfection, and finished-water verification.

  1. 01 Source Water Characterization Source basis Define the design basis before selecting barriers.
  2. 02 Coagulation & Conditioning Chemical conditioning Make feed chemistry compatible with the next barrier.
  3. +3 more stages
  4. 06 Distribution & Final Quality Monitoring Carry the quality claim into distribution.
Open Workflow
Treatment System Potable water +1 Discipline Treatment Process Design +2

Municipal / Industrial Wastewater Treatment

Eight decision stages from influent acceptance through preliminary and primary treatment, alternative biological paths, secondary solids separation, optional polishing, disinfection, and effluent/reuse/discharge review.

  1. 01 Influent & Acceptance Basis Source basis Set traceable flow, load, sampling, and source-acceptance boundaries.
  2. 02 Preliminary Treatment & Optional Equalization Pretreatment Screen and remove grit, with equalization added when variability requires it.
  3. +5 more stages
  4. 08 Effluent / Reuse / Discharge Review Reuse / discharge Synthesize final results against declared targets and evidence needs.
Open Workflow
Treatment System Wastewater treatment +1 Discipline Treatment Process Design +3

Seawater Desalination

A membrane-led desalination train from intake and pretreatment through chemical conditioning, UF/MF where applicable, RO, conditioning, disinfection, and product water.

  1. 01 Seawater Intake Source basis Set intake hydraulics and the feedwater basis.
  2. 02 Screening & Pretreatment Pretreatment Protect chemical and membrane barriers.
  3. +5 more stages
  4. 08 Product & Concentrate Boundary Reuse / discharge Carry product and residuals into review.
Open Workflow
Treatment System Desalination +1 Discipline Treatment Process Design +2

High-Purity Water for Advanced Manufacturing

Quality-critical water planning for advanced manufacturing and related uses. Define the end-use basis first: semiconductor UPW, pharmaceutical PW/WFI, power or boiler makeup, and laboratory water are distinct duties.

  1. 01 Pretreatment Pretreatment Protect high-purity barriers from feed variability.
  2. 02 Reverse Osmosis Membrane treatment Reduce the bulk ionic and dissolved-solids load.
  3. +3 more stages
  4. 06 Distribution & Monitoring Monitoring Keep the quality claim alive in the loop.
Open Workflow
Treatment System High-purity water +1 Discipline Treatment Process Design +3

PFAS / Activated Carbon Treatment

A six-stage decision path from PFAS and matrix characterization through pretreatment, carbon screening, lead/lag operation, field monitoring, and spent-media decisions.

  1. 01 Influent Characterization Source basis PFAS, matrix, flow, target.
  2. 02 Pretreatment Pretreatment Solids, organics, bed protection.
  3. +3 more stages
  4. 06 Replacement or Regeneration Residuals PFAS-loaded media disposition.
Open Workflow
Treatment System Contaminant removal +1 Discipline Adsorption & Chemicals +2

Cooling and Industrial Water Management

A systems route from makeup-water characterization through conditioning, cooling-system balance, blowdown, and reuse or discharge context.

  1. 01 Makeup-Water Characterization Source basis Set cooling-loop quality and demand basis.
  2. 02 Conditioning Chemical conditioning Control scaling, corrosion, and biology.
  3. +2 more stages
  4. 05 Reuse or Discharge Context Reuse / discharge Carry the balance into the permitting decision.
Open Workflow
Treatment System Cooling water +1 Discipline Treatment Process Design +2

Pipeline and Hydraulic Design

An engineering-system workflow from source and pipe-network definition through friction/pressure evaluation, air management, and equipment selection.

  1. 01 Source & Duty Definition Source basis Declare flow, fluid, elevations, and cases.
  2. 02 Pipe Network Other Map lines, fittings, elevations, and interfaces.
  3. +2 more stages
  4. 05 Equipment Selection Review Other Connect hydraulic duty to equipment needs.
Open Workflow
Treatment System Hydraulics +1 Discipline Process Equipment +1

03How ATLAS Connects the Workflow

How ATLAS Connects the Workflow

Application sets the context. The treatment train exposes the stage. Each stage names the question, then points to a real tool for calculation or research for the why and how. The output is a decision basis—not silent calculator state transfer.

  1. 01Application
  2. 02Primary treatment train
  3. 03Stage
  4. 04Engineering questions
  5. 05Related tools
  6. 06Supporting research
  7. 07Next decision

04Supporting Engineering Context

Supporting Engineering Context

Related tools

Engineering Tools

Plant Water & Mass BalanceSolve a plant-wide steady-state water and constituent balance across process, waste, and declared recycle streams.Water Treatment Plant Hydraulic ProfileTrack hydraulic grade through entered pipe, pump, fixed-loss, and basin-boundary segments.Water Treatment Residuals & Sludge DesignerEstimate captured raw solids, chemical solids yield, optional backwash and other residuals, and wet-slurry volume.
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Supporting research

Supporting Research

Nanofiltration Membrane Applications: Selective Ion Rejection Across Drinking Water, Leachate, and Specialty Process StreamsA vendor-neutral technical review of nanofiltration (NF) membranes — separation mechanism, rejection-class specifications, and field performance across drinking water softening, landfill leachate, and specialty concentration/desalting duties.Chemical Treatment Programs for Reverse Osmosis Membrane Systems: Antiscalants, Dechlorination, Biocides, and Cleaning FormulationsA functional breakdown of the six chemical treatment categories governing RO membrane performance — antiscalants, dechlorination, biocides, coagulants, pH adjustment, and CIP — with dosing benchmarks, compatibility limits, and advanced fouling-monitoring parameters.A2O Biological Nutrient Removal: Why Nearly Every Real Plant Runs a Modified FlowsheetThe anaerobic-anoxic-oxic process looks like a clean three-zone design, but its single-sludge architecture creates three unavoidable internal conflicts — SRT, carbon competition, and recycle interference — that every major flowsheet variant exists specifically to work around.
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Current intelligence

Intelligence

EPA Proposes Two-Year Compliance Extension for PFOA and PFOS Drinking Water LimitsEPA's proposed rule keeps the 4.0 ppt PFOA/PFOS MCLs intact but lets eligible water systems apply for a federal exemption pushing the compliance deadline from April 2029 to April 2031.West Virginia's Ada Water Treatment Plant Clinches National 25-Year Quality AwardThe Ada Water Treatment Plant in Bluefield earns the prestigious 25-year Directors Award from the Partnership for Safe Water, highlighting long-term process optimization.Sabesp Adds 725 L/s UF Capacity and Expands MBR Wastewater TreatmentBrazilian utility upgrades combine high-rate ultrafiltration with an 84% MBR capacity increase, shifting attention to membrane availability, residuals handling and lifecycle cost.
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