Better Wastewater Decisions, Built On Trusted Evidence.

We give clients quick access to high-frequency wastewater process data by deploying and maintaining temporary monitoring instrumentation at key locations, with measurements presented through live dashboards.

We then apply our wastewater process experience to turn the data into evidence clients can act on.

Wastewater Data & Process Intelligence

BI-Zen helps water companies and delivery partners rapidly generate the process evidence needed to understand performance, reduce uncertainty and inform operational, design and investment decisions.

What We Do

From rapid mobilisation to informed wastewater decisions.

Where We Add Value

Better evidence for everyday wastewater decisions.

Digital Flow & Load
Process headroom
Commissioning & performance verification
Optimisation & compliance recovery
Nutrient removal
Process emissions

What Bi-Zen Does

BI‑Zen’s Optimisers are temporary, mobile monitoring systems configured with the sensor array needed for each project. We deploy and maintain them as a managed service, with data available through live dashboards.

Mobilise around the decision

We rapidly deploy Optimisers and specialist instrumentation around the site, project or programme question.

Generate And Assure Evidence

Maintain the monitoring, check data quality and align high-frequency measurements with relevant client data in live dashboards.

Align, Trend And Quantify

Bring monitoring and client data together in dynamic dashboards, creating Digital Flow & Load profiles and mass balances that show changing loads, performance and headroom.

Interpret, Inform And Verify

Apply wastewater process engineering to identify likely causes, constraints and headroom, inform action and verify what changed.

Specialist In Character. Enterprise-Ready In Delivery.

BI-Zen was established by experienced wastewater professionals who saw important decisions being made from limited snapshots, disconnected data or evidence gathered too late. We created a faster, managed route to generate the missing evidence and keep process engineering involved from deployment through interpretation and follow-up.

Clients work directly with experienced wastewater professionals, supported by management systems certified to ISO 9001, ISO 14001 and ISO 45001.

Projects & Evidence

See how BI-Zen has generated missing evidence, clarified what was happening and informed operational, design and investment decisions.

When wastewater samples and process evidence disagree

At a large wastewater works, calibrated sensors and fresh onsite checks followed a consistent pattern, while some transported nitrogen and COD results differed. A later comparison raised the same question: final-effluent results aligned, but active mixed-liquor results did not. BI-Zen combined process trends, duplicate onsite tests and accredited analysis to define a controlled next step before conflicting evidence influenced operational, design or investment decisions.

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Live evidence supported low-phosphorus commissioning while protecting biological performance

At a 10,000 PE works, upgraded solids separation was producing very low final-effluent turbidity, but the remaining phosphorus was predominantly soluble. With permanent analysers on long lead times, BI-Zen rapidly deployed temporary Optimisers and specialist nutrient monitoring. Two-minute data and live dashboards gave the commissioning team a faster way to review chemical dosing, verify process response and watch for conditions that could affect nitrification.

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Digital Flow & Load evidence refined the rationalisation strategy across two works

BI-Zen deployed temporary Optimisers at the inlets to two large works within one catchment. High-frequency evidence established current loading profiles, quantified saline infiltration and tested the effect of digestate return liquors. At one works, the measured basis indicated a potential reduction of around 20% against historical values, allowing design assumptions to be reviewed before the rationalisation option progressed.

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Revealing catchment differences to inform anoxic zone design

Temporary Optimisers compared settled-sewage composition across two process batteries before moving to an existing anoxic zone. Minute-level trends showed that Battery C received less soluble carbon relative to ammonium and behaved differently from the reference battery, prompting the project team to reconsider a conventional anoxic zone design and take a wider systems approach.

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Granular SBR monitoring identified a maintenance cause of solids breakthrough

To inform site rationalisation and future design, BI-Zen monitored crude-sewage loading and SBR outlet performance. Live, high-frequency evidence captured repeated solids breakthrough during specific decant cycles and focused investigation on a sealing valve letting by. The team could address the maintenance issue before considering larger process or capital changes.

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Using live process evidence to reduce unnecessary capital investment

A two-week digital monitoring and sampling programme showed where the biological filter works was underperforming and where process headroom remained. The project team used the evidence to target operational and maintenance interventions and reduce the promoted capital solution from £6.76m to an estimated £1.6m.

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Testing what the existing filter works could achieve before committing capital

At a 2,826 PE biological filter works, BI-Zen monitored a controlled increase in recirculation and filter wetting using one-minute data at the humus-tank outlet. Live evidence exposed short morning ammonia peaks that periodic samples could miss and helped the project team test hydraulic options before assuming that a major media upgrade was required.

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Recovering treatment performance through whole-works process understanding

A medium to large wastewater treatment works, that included region sludge treatment, had experienced pollution failures and required sustained reactive intervention. BI-Zen helped operations, process science and ICA use a systems-thinking approach to test historic assumptions and close evidence gaps with live Optimiser data. The collaborative work identified the conditions behind instability, supported rapid operational and control changes, and helped recover more stable performance without a major capital intervention.

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Carbonaceous ASPs: a scalable opportunity to tackle N₂O

N₂O has 273 times the 100-year warming impact of CO₂, and recent UK water-sector reporting changes have raised the importance of understanding when wastewater processes generate it. Across two comparable carbonaceous asps, bi-zen’s optimisers have connected changing load, aeration and treatment response with dissolved n₂o to reveal when unintended nitrification developed and inform an approach that could scale across a wider asset portfolio.

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Agile N₂O monitoring linked process emissions to changing operating conditions

South West Water, Jacobs and BI-Zen combined fixed dissolved N₂O monitoring, a settled-sewage Optimiser and a mobile floating profiling rig across three activated sludge lanes. High-frequency evidence established an ASP baseline, revealed lane-to-lane variation and focused the next stage of investigation.

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Better Wastewater Decisions, Built On Trusted Evidence.

Wastewater Data & Process Intelligence

What We Do

Where We Add Value

What Bi-Zen Does

Mobilise around the decision

Generate And Assure Evidence

Align, Trend And Quantify

Interpret, Inform And Verify

Specialist In Character. Enterprise-Ready In Delivery.

Projects & Evidence

When wastewater samples and process evidence disagree

Live evidence supported low-phosphorus commissioning while protecting biological performance

Digital Flow & Load evidence refined the rationalisation strategy across two works

Revealing catchment differences to inform anoxic zone design

Granular SBR monitoring identified a maintenance cause of solids breakthrough

Using live process evidence to reduce unnecessary capital investment

Testing what the existing filter works could achieve before committing capital

Recovering treatment performance through whole-works process understanding

Carbonaceous ASPs: a scalable opportunity to tackle N₂O

Agile N₂O monitoring linked process emissions to changing operating conditions

Testimonials

Projects & Evidence

When wastewater samples and process evidence disagree

Live evidence supported low-phosphorus commissioning while protecting biological performance

Digital Flow & Load evidence refined the rationalisation strategy across two works

Revealing catchment differences to inform anoxic zone design

Granular SBR monitoring identified a maintenance cause of solids breakthrough

Using live process evidence to reduce unnecessary capital investment

Testing what the existing filter works could achieve before committing capital

Recovering treatment performance through whole-works process understanding

Carbonaceous ASPs: a scalable opportunity to tackle N₂O

Agile N₂O monitoring linked process emissions to changing operating conditions