Decision notes on assumptions and site conditions that can change the route.
Each note addresses one issue: an operating condition, design assumption or scope gap that should be resolved before it affects procurement, commissioning or day-to-day performance.
- Design basis and wastewater character
- Reuse demand and stream segregation
- Treatment stability and process diagnostics
- Sludge, odor and residuals
- Monitoring, control and commissioning
- Supplier comparison and asset definition
Technology write-ups focused on design basis, integration and proposal requirements.
Each Design write-up explains the need behind a process, how its treatment duty is delivered, where it fits, what can limit performance and what a supplier proposal should declare.
- Why the process was developed
- How the treatment mechanism works
- Selection and integration conditions
- Performance limitations and operating risks
- Proposal, commissioning and guarantee requirements
Process and business-case analysis for decisions that require wider review.
In Depth reviews connect technical route development with reuse value, residual streams, project economics and the year-round operating basis before a major scope or investment decision is made.
- Site water balance and confirmed reuse demand
- Route comparison and technology fit
- Recovery, reject and residue handling
- CAPEX, OPEX and operational readiness
- Conditions for proceeding, deferring or changing route
Choose the level of review that matches the decision.
Field Notes identify a decision point or missing site condition. Design write-ups explain the process basis and proposal requirements. In Depth reviews examine route options, operating implications and project economics when the decision extends beyond one treatment step.
Field Notes surface assumptions, site conditions and scope gaps that can change the route or asset duty.
Design write-ups explain treatment mechanisms, integration, limitations and the information a proposal should declare.
In Depth reviews connect technical options with reuse demand, residuals, CAPEX, OPEX and operational readiness.
A Field Note may identify the issue, a Design write-up may frame the process response, and an In Depth review may test the wider project case.
Assess the site before the schematic.
Eighteen Field Notes examine design basis, reuse intent, treatment stability, sludge, odor, monitoring, commissioning and supplier readiness. Each note opens the issue in full and is grouped by the decision area it supports.
Browse Field NotesMBBR design basis for STP and ETP applications
A Design write-up on why MBBR was developed for compact treatment and capacity upgrading, how loading and mass transfer govern the moving biofilm, where the process fits, what can reduce performance and what a proposal should declare.
Read the MBBR Design write-upWhen ZLD has a business case at an existing ETP
An In Depth review of ETP stability, site water balance, reuse demand, recovery, reject and residue handling, project economics and the year-round operating basis used to decide whether to defer, recover partially or proceed to full ZLD.
Read the ZLD In Depth review