Real-Time Biological Insights for Wastewater and Biogas
ActiSense is a bio-electrode sensor system that tracks microbial health and organic loading minute by minute.
Do you struggle with variable feedstocks that sometimes cause costly process upsets?
Are you aiming to safely increase organic loading and biogas production?
Do you want to safely take advantage of opportunistic feedstocks and gate fees?
If yes, ActiSense gives you the real-time data to achieve those goals.
Prevent upsets, optimise processes, and cut costs with live insights you can act on.
What is ActiSense?
ActiSense is a microbial fuel cell-based sensor system that continuously measures the metabolic activity of microbes in wastewater and anaerobic digestion.
Unlike traditional tools that rely on delayed lab samples or proxy indicators, ActiSense directly monitors microbial respiration — the foundation of biological treatment.
Think of it as a “heart rate monitor for your biology”: clear, real-time signals of microbial health that help you keep processes efficient, stable, and profitable.
Why Choose ActiSense?
Benefits of ActiSense
Early Warning System
Detect toxic shocks, overloading, and imbalances days before traditional sampling.
Optimised Efficiency
Fine-tune aeration, chemical dosing, and feed strategies for predictable performance.
Cost & Energy Savings
Typical facilities report £75k+ annual savings by reducing downtime and unnecessary aeration.
Continuous Real-Time Data
Minute-by-minute monitoring of biomass activity and organic loading, updated every 60 seconds.
Low Maintenance
No calibration, cleaning, or consumables. Sensors thrive in the fouling conditions that disable conventional probes.
How it works
How ActiSense Works
ActiSense combines three elements into a simple, plug-and-play system:
Bio-Electrode Sensors
- Installed in drop-in or in-line configurations.
- Pre-loaded microbes acclimate in 1–3 days, then form a robust biofilm.
- As they metabolise organics, they generate an electrical signal that reflects microbial activity.
Control Panel
- Supports up to four sensors.
- Provides power and connectivity (Ethernet, Wi-Fi, analog outputs).
- Quick installation — live data streaming within 30 minutes.
Web Dashboard
- Cloud-based, accessible anywhere.
- Displays real-time signals, refreshed every 60 seconds.
- Customisable alerts for toxicity, VFA buildup, or variable influent.
- Integrates seamlessly with SCADA systems.
Actisense
Applications
Wastewater Treatment
- Detect variable influent early.
- Identify industrial discharges causing toxicity.
- Optimise aeration efficiency and cut energy costs.
- Stabilise effluent quality and improve compliance.
Anaerobic Digestion
- Prevent souring and downtime.
- Track VFAs and microbial health in real time.
- Optimise co-digestion mixtures and feeding strategies.
- Increase methane yield and volatile solids destruction.
Industrial Wastewater
- Monitor process water in pulp & paper, food & beverage, and chemical industries.
- Detect toxicity events and shock loads.
- Inform production and dosing decisions with live data.
Actisense FAQs
How is ActiSense installed?
Sensors can be installed in as little as 30 minutes. Options include drop-in for tanks or in-line (1.5” NPT fitting, ≥3” pipe).
How often is maintenance required?
What data does it provide?
Continuous signals of microbial metabolic activity, updated every 60 seconds, available via the dashboard or SCADA.
What problems can it detect?
Process upsets such as toxic shocks, VFA accumulation, variable influent, and microbial stress — well before they reduce performance.
What savings can I expect?
Typical facilities report £75k or more in annual operational savings by reducing downtime and optimising aeration efficiency.
Ready to Stay Ahead of Process Upsets?
If variable feedstocks or rising loading targets are challenges in your plant, ActiSense can help you stay in control.
About RAFT Energy
RAFT Energy develops technologies that turn waste into wealth. Our product suite combines chemistry and monitoring to help operators maximise performance and profitability.

Our catalyst that delivers higher methane output, cleaner gas, and more predictable operations.

Our sensor system for real-time monitoring of biomass health and organic loading.
Together, they provide a powerful combination: ActiCH4R improves performance inside your digester, while ActiSense gives you the live data to optimise every decision.
Register Your Interest in ActiSense
Get in touch with RAFT Energy to learn how ActiSense can help you detect imbalance, optimise organic loading, and maximise biogas yield.