One clear process design pack covering load cases, sizing, equipment schedules, connections, and review criteria - so your detailed engineering partner or EPC can move into IFC and procurement with the scope and limits already set out.
Think of the Process Design Pack as one structured project pack. It gives you everything you need to set out the job clearly for vendors and design partners, without tying you to any one supplier or EPC partner.
Where stamped IFC is needed, we work with your engineer of record or design partners while staying on as the owner’s advisor to keep feasibility inputs, project basis, and review criteria intact through delivery.
A single FlowPlan design & advisory pack that ties together process overview, design ranges, PFDs, equipment list, controls and monitoring concept, and review criteria around a clear project type.
Structured inputs that vendors and EPCs can pick up immediately for pricing and detailing - without having to guess your intent, limits or record expectations.
KPIs, sampling points, factory and site check points and early-operation checks are designed in from the start, so everyone knows what success looks like before equipment is ordered.
The same logic powers STP+, ETP+, retrofit, UFRO+ and built-environment reuse (GWTP, VWRP), so your design pack reflects project families already recognised in the market.
This service usually starts once you’ve decided to procure or upgrade a plant - for example an STP+, ETP+ or onsite reuse system - and need a Process Design Pack your chosen partners can implement.
FlowPlan design & advisory packs by variant
Each Process Design Pack engagement is built around a concrete project type you already recognise - an STP, an ETP, a retrofit, a membrane reuse stage, or onsite reuse such as greywater or vehicle wash water. For each variant, we assemble a combined design and advisory pack that can be delivered anywhere and then taken forward by your engineer of record, EPC or vendors. The STP+, ETP+, retrofit and ZLD-focused FlowPlan project variants are configured as vendor-ready design & advisory packs - with key project choices available to clients, leading to custom and targeted fit-for-purpose designs.
Process Design & Advisory for municipal and decentralised STPs.
Process: MBBR-hybrid biological stage with clarification, polishing and sludge handling, configured around your actual flows and loads.
Sector: Domestic sewage from cities, townships and institutions - new plants, expansions or upgrades of stressed / non-compliant STPs.
Pack includes: A vendor-ready process configuration with limits, reuse/compliance route, sludge path and monitoring/review outline that your design partners and solution providers can act on.
Delivers: process design scheme, BoM, specs & technical notes, commercial snapshot, and a visual map of water and sludge streams.
Set your project preferences early through FlowPlan diagnostics.
Process Design & Advisory for retrofit and capacity upgrades of STPs.
Process: Reconfiguration of existing basins, addition of key units and controls, and rerouting of flows to stabilise and uplift performance.
Sector: Municipal STPs with usable civil structures but chronic performance, odour or compliance issues.
Pack includes: Retrofit options with a preferred route, impact on civil works, and a vendor-ready concept aligned with your upgrade budget.
Delivers: retrofit process scheme, upgrade BoM, impact notes, commercial snapshot, and a visual of pre/post water and sludge pathways.
Clarify retrofit constraints and uplift targets before locking the design.
Process Design & Advisory for industrial effluent treatment plants.
Process: Stream segregation, equalisation, physico-chemical steps (coagulation, flocculation, DAF/clarifier), biological stage where needed, and tertiary polishing.
Sector: Industrial effluents from sectors such as food & beverage, textiles, metals, chemicals, pharma and mixed-use estates.
Pack includes: A defined treatment stage that balances compliance, production continuity and reuse/ZLD-prep, ready for vendors to price and configure.
Delivers: process scheme, equipment concept, compliance & reuse KPIs, and a commercial view that links plant risk with upgrade decisions.
Balance compliance, production and reuse priorities from the start.
Process Design & Advisory for industrial ETP retrofits and debottlenecking.
Process: Integration of new segregation, equalisation or polishing steps with existing units to resolve overload, variability and non-compliance.
Sector: Operational ETPs where product changes, expansions or stricter norms have stressed the original design.
Pack includes: Retrofit options, connection strategy and risk-focused performance outlook that vendors and EPCs can price and implement.
Delivers: retrofit configuration, integration notes, compliance risk view and a structured upgrade note for solution providers.
Align retrofit scope with compliance risk and production continuity.
System Design & Advisory for brine and ZLD-focused integrations.
Process: Focused on post-RO or high-TDS brine, integrating evaporators, crystallisers or other thermal units with upstream treatment.
Sector: Industrial and infrastructure sites facing stringent discharge bans or high penalties for brine disposal.
Pack includes: Brine source mapping, ZLD route options, integration logic and evaluation of recovery versus complexity and energy cost.
Delivers: ZLD configuration options, heat & energy notes, solids handling view and a decision-ready comparison of routes.
Set brine, heat and recovery priorities upfront for FlowPlan - ZLD+.
System Design & Advisory for batch chemical treatment stages.
Process: Batch coagulation/flocculation, pH correction and solids separation to target metals, colour, organics or high-TDS streams as needed.
Sector: Industrial or mixed streams where variability, campaigns or intermittent flows make batch treatment more practical.
Pack includes: Chemistry route, sizing logic, filtrate/brine handling options and integration notes with upstream/downstream systems.
Delivers: batch process scheme, chemical strategy, solids/filtrate paths and a vendor-ready concept for packaged or in-situ systems.
Tune batch chemistry, operating mode and filtrate use upfront.
Advanced membrane reuse design pack built around ultrafiltration and RO hybrids.
Use when a site needs high-assurance treated water for cooling, process make-up, or polishing before ZLD - and wants a clear view of recovery, brine streams, and risks.
We help you set out influent quality ranges, select UF/RO stage configurations, and position RO Core, Micra and ZLD+Prep modules so that your suppliers can quote confidently.
Delivers: membrane stage concept, recovery & brine map, module selection notes, and diagnostic-driven inputs that your membrane vendors can plug directly into proposals.
Powered by FlowPlan diagnostics on TDS, organics, fouling risk and reuse priority.
Greywater Treatment Plant design pack for buildings, campuses and community clusters.
Use when you need a structured way to move from “we want flushing / landscape reuse” to a concrete GWTP scheme that vendors can price and deliver against.
We help you set out daily loads, peaking, equalisation, disinfection, and storage so that both building engineers and treatment vendors are aligned on what “good” looks like.
Delivers: GWTP concept, hydraulic & storage basis, quality targets, and a vendor-ready outline for civil, M&E and controls integration.
Driven by building type, occupancy, reuse mix and footprint constraints.
Vehicle Wash Recycling Plant design pack for commercial and fleet wash sites.
Use when you want to convert a fresh-water-hungry wash into a recycling-led layout with clear oil, grit and solids handling - and a reuse percentage you can track.
We map bays, soiling levels, interceptors, equalisation and polishing stages so that vendors can configure DAF, filters and dosing systems that align with your reuse goals.
Delivers: wash-water mass balance, treatment stage concept, reuse & discharge ranges, and vendor-facing notes on equipment duty and connections.
Bay count, soiling profile, reuse target and operating range are all dialled in up front.
A tailored design & advisory pack when your site does not fit a single predefined variant.
Use when you have multiple water types, unusual constraints, or a mix of new build and retrofit needs - and want a single tailored pack that still lands as a clear note for vendors.
We assemble a custom pack from the same building blocks - diagnostics, concept design, specs, KPIs and commercial snapshots - but tuned to your sector, risk profile and decision process.
Delivers: a structured, vendor-ready scope that may blend STP, ETP, brine, sludge, heat or niche reuse elements into one navigable set of outputs.
Start from your sector, water types, constraints and decision horizon - FlowPlan tunes around that.
The Process Design Pack comes between feasibility/options and detailed IFC design. We hold the process, performance and review intent; your nominated engineering partners / EPC turn this into IFC drawings and detailed construction design; your technology partners and solution providers supply and commission the equipment. The client stays in control of who does what.
We start from your FlowPlan variant and project data to configure the process route, limits, load cases, electromechanical scope and controls/automation concept. We assemble a design pack and structured equipment list that vendors can price and your partners can detail, and we stay alongside you as the owner’s advisor so design reviews, vendor proposals and commissioning all remain tied back to the agreed KPIs and review criteria.
Your engineering office, engineer of choice or EPC uses the design pack to develop IFC: detailed P&IDs, layouts, structural/MEP connections, I/O and cable schedules and construction sequencing. We do not replace them; we work alongside whoever you appoint so that the detailed design stays faithful to the agreed process intent.
Equipment suppliers, technology partners and solution providers respond to the design pack with equipment selections, skids, panels and process guarantees. We help reconcile their proposals with the design basis, bill of electromechanical equipment and review plan. Adjustments to scope or configuration are agreed with you, and factory and site checks and on-site tests are executed by vendors and your EPC, with us available to support as project-side advisor.
The Process Design Pack works within our broader design & delivery models. On every Process Design Pack engagement we stay in the system-planning and advisory role, while your engineering partners / EPC and technology partners take responsibility for stamped design, supply and construction. If you’d like to see how different engagement depths work in practice, you can explore our dedicated section: Our design & delivery business models .
By the time you come to us for a Process Design Pack, feasibility and options have already been agreed. We treat those as fixed inputs and focus on configuring a vendor-ready process & system design pack, then staying with you through procurement, testing and early operation as owner’s advisor. The scope typically includes the building blocks below.
Feasibility outputs, options analysis and design ranges are treated as fixed inputs, not re-worked. We start from the agreed variant, limits, KPIs, hydraulics, utilities and site constraints, and use them as the starting basis for the pack.
End-to-end process route tying together headworks, biological/chemical stages, clarification, polishing and residuals handling. We define normal, peak and upset load cases and a clear hydraulic concept that your design partners can translate into detailed P&IDs and profiles.
Core process units, packaged systems and proprietary equipment are positioned inside a defined treatment stage with clear duty points, standby logic, bypasses and connections. The outcome is a structured list of electromechanical equipment that vendors can price and your EPC can detail without guessing.
High-level control philosophy and monitoring intent: what is measured, how loops and interlocks behave, alarm and trip priorities, and how project basis will be logged for performance and compliance. Detailed I/O lists and panel design are then completed by your automation partners in line with this concept.
KPIs, test conditions, sampling and monitoring plan, and factory and site check points are built into the design from the start. Vendors and EPCs can see how commissioning and performance testing will be judged before equipment is ordered, reducing disputes and making guarantees concrete.
Clear hand-off to your engineer of record, EPC and vendors: who details what, where reviews happen, and how design changes are agreed. If you wish, we stay on as owner’s advisor through RFQs, vendor alignment, design reviews, factory and site checks and early operation ranges to keep the design intent and KPIs intact.
The outcome is a complete Process Design Pack that can be priced, detailed and built by the teams you choose. These are the core outputs we typically land on your table.
A concise basis-of-design overview: selected route, operating range, key assumptions, and the sizing logic behind each major unit.
Sizing sheets (tanks, hydraulics, aeration, pumps/blowers, chemical dosing, solids handling, etc.) plus an equipment schedule and datasheet basis that your EPC can carry into procurement.
Process flow diagrams, indicative hydraulic profile, and a block layout / zoning note to make connections, levels, and footprint implications explicit for civil/MEP detailing.
Control states/sequences, key loops and interlocks, setpoint ranges, alarms, and a planning-level instrumentation / I/O outline aligned to performance checks.
Review notes and approvals on IFC packages prepared by your EPC/detailed engineer to protect the design basis, connections, and review intent through delivery.
Clarifications and decision notes on vendor offers (as needed), together with factory and site checks intent, commissioning checks, and performance record checkpoints that make outcomes verifiable.
Our involvement can stay focused or continue through procurement, implementation and early operation. Some clients want us to land the Process Design Pack and stay available in the background; others ask us to remain engaged all the way through procurement, implementation and early operation. In all cases, detailed engineering, supply, factory and site checks and construction are carried out by your chosen partners and vendors.
We scope and deliver the full FlowPlan design & advisory pack for the chosen variant (STP+, ETP+, retrofit, UFRO+, GWTP, VWRP). You receive the process design overview, limits, PFDs, electromechanical equipment list, controls/monitoring concept and review plan, ready for your design partners and vendors to act on. We typically support clarification of the pack through RFQs/specs and early vendor questions as needed.
Where you prefer, we stay engaged beyond the design pack as your owner-side advisor: supporting RFQs and evaluations, design reviews with your design partners and EPC, vendor alignment, factory and site checks, and early-operation ranges. Vendors and implementers adjust details, skids and panels based on the agreed design; we help make sure those adjustments are deliberate, documented and consistent with the intent and review criteria.
Sampling, KPIs, trending, and approval criteria from feasibility through commissioning.
Any vendor/partner deviation assessed against limits; tracked to review impacts.
O&M guidance pack (ops states, upset recovery), troubleshooting trees, and project basis trail.
A delivery flow that keeps process intent, sizing, and review record connected - from basis-of-design through detailed engineering and commissioning.
Prefer to start earlier? We can begin with a feasibility or route-confirmation sprint and then move into dimensioning once the route is confirmed.