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Selective adsorption

Envirotec Magazine

The crystal structure of the K-GIS zeolite adsorbent: The size of cavities in the crystal is slightly larger than the CO2 molecule, permitting CO2 to enter the crystal and be adsorbed while larger molecules such as methane are excluded. Biogas from sewage sludge, garbage, and similar sources consists of approximately 60% methane and 40% CO2.

Methane 244
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CH4nge is in the air? Comparing laser and FID for landfill emissions monitoring

Envirotec Magazine

The accurate and effective monitoring of surface methane emissions levels is critical to the safe operation of landfill and waste management sites. However, methane monitoring equipment can sometimes be more of a hinderance than a help. Another way? It is able to detect emissions from 1-10,000ppm or from 0.1%

Methane 244
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Anaerobic digestion trade body calls for ban on Russian natural gas imports in open letter to the UK Prime Minister

Envirotec Magazine

In fact, converting biomethane to green hydrogen can be net negative. Finally, biomethane is generated by recycling methane emitting organic wastes. Therefore, the AD sector alone could deliver 20% of the UK’s commitment to the Global Methane Pledge. Russia has put a six-month moratorium on the export of mineral fertiliser.

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Specialist firm develops eco-solution for Japanese knotweed waste

Envirotec Magazine

The creation of biochar, a charcoal used as a soil amendment, from Japanese knotweed plant waste is a carbon negative process which harnesses the carbon-scavenging power of Japanese knotweed in a positive way and contributes to the fight against climate change by locking carbon away for thousands of years.

Waste 188
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Dealing sensibly with knotweed (with a nod to emissions)

Envirotec Magazine

We can now harness the carbon scavenging power of Japanese knotweed and other invasive plants, explains Nic Seal, Founder and MD of Environet, a UK specialist in the topic. From one tonne of knotweed rhizome (wet weight) we can create around 150-200kg of charcoal which is 99% pure carbon.

Soil 244
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BEIS funding supports utility’s project to turn biogas into hydrogen

Envirotec Magazine

The consortium has a vast amount of knowledge and experience, which we are leveraging to produce carbon negative hydrogen – there is no better goal to be working on right now.”. Although the primary goal of the work is to produce hydrogen, the Levidian LOOP is also a unique carbon capture and utilisation technology.

Hydrogen 162
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Geological Hydrogen vs Fracking

Hydrogen Fuel News

Another pressing issue is methane leakage. During the drilling and fracking processes, methane, a potent greenhouse gas, can escape into the atmosphere. This contributes to climate change and negates some of the benefits of using natural gas, which has lower carbon emissions than coal or oil. 2021;192(1):11. Gaucher EC.

Hydrogen 121