Waste recovery
With 324.5 million tonnes of waste produced in 2015 for only 48 million tonnes processed and recovered in 2014, the importance of energy recovery of waste is needed. (ADEME data: « Waste 2017: 10 key digits ».)
SIAAP, a water sanitation actor in Ile-de-France, treats up to 2.5 million m3 of water/day. The sludge from this treatment is partly recovered for biogas production. The compound of major interest then produced is methane. Biogas is used in cogeneration, allowing energy autonomy of up to 70% on some of its stations.
The Micro GC Fusion in all this...
In this context, the Micro GC Fusion allows measurement in less than 5 minutes of the different gases generated from a few ppm up to 100% and thus optimizes processes in near real time.
The undesirable compounds, even at low levels (e.g. H2S, GHGs) are then easily quantified.
Figure 1. Process of methanization in 500mL digesters connected to two AMPTS2 (Automated Methane Potential Test System) and Micro GC Fusion. Laboratory (Service Expertise Prospective – SIAAP). Preliminary test with Micro GC in parallel for qualitative analysis of the gases produced for each condition.
Within the SIAAP's Expertise and Prospective service, the Micro GC Fusion, equipped with a multi-channel selection valve, has completed their technical platforms. The laboratory scale includes the automated system for determining the methane potential AMPTSII (Bioprocess control®) (Figure 1).
Micro GC Fusion integrates well into this system because it requires a small sample volume for analysis. In addition, coupled with a multi-channel valve, it allows sequential monitoring of several fermenters.
Thus, it gives a qualitative result of the gas produced in addition to the methanogenic potential value.
Larger scale...
Micro GC Fusion allows the analysis of biogas produced over longer periods, in parallel with biogas flow measurements (Figure 2).
Figure 2. Discontinuous solid-track digger (pilots, instrumentation and Labo-M Solutions structure) for methanization, connected to Micro GC Fusion and a MacroFlow (Bioprocess control®) standalone flowmeter. Siaap Test Hall (Colombes). Larger scale biogas production and process optimization using Micro GC Fusion measurements.
Fermentation or kinetic monitoring can now also be controlled in real time (Figure #3) with Chembox.
Figure 3. Trends associated with digester analysis by Micro GC Fusion.
At around 11:10 a.m., the Micro GC quickly detects the air entering the digester.
Today many alternatives are being studied for energy production; What if the solution was in our garbage?
What do you think?
Contacts:
MicroGC Fusion – CHEMBOX: Chemlyscontact@chemlys.com
Bioprocess control : Labo-M Solutions, lucile.macchi@labo-m.solutions
