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Sonichem (formerly Bio-Sep)

Sonichem ultrasonic technology
driving the sustainable
chemicals of the future

We have transitioned our brand to Sonichem (formerly Bio-Sep), as we embark on an exciting new chapter of innovation and growth.


Sonichem biorefinery technology is an ultra-clean way to convert low-value woody biomass (e.g. sawdust) into high value green chemicals 

Learn more about our process >

Low energy

Our ultrasonic technology requires significantly less energy than conventional methods, resulting in green chemicals with a low carbon footprint.

Sonichem zero waste icon

Zero waste

All the biomass that enters our process is upcycled into pure platform chemicals – with no co-products, no impurities and only recyclable solvents.

Sonichem green chemicals icon

High quality green chemicals

Our process creates three clean product streams with a huge range of potential uses, including some of the purest lignin on the market.

Sonichem biomass icon

Responsibly-sourced biomass

We only use non-food woody biomass – by-products from the forestry and agricultural industry – that would otherwise be burnt or left to rot.

Our products

Our green chemicals sequester carbon and can be used to create a wide range of products, packaging, and materials with a low environmental impact.


Cellulose                             >

Hemicellulose hydrolysate   >

Lignin                                   >

Cellulose in Wood
Hemicellulose in Wood
Sonichem Lignin from sawdust

Our impact

Fossil fuels and the burning of waste biomass from
forestry and agriculture are significant contributors
to rising CO2 levels in the earth’s atmosphere. To
tackle the climate crisis, we need to find clean
technological solutions that reduce our reliance on
depleting reserves, like crude oil and gas, while
better utilising the world’s renewable resources.

Sonichem technology optimises the use of the world’s natural resources at every step, reducing our
collective reliance on fossil fuels and avoiding
excess and waste.

Latest news

Dr Andy West with Sonichem Lignin

Dr Andrew West, Awarded Fellowship of the Royal Society of Chemistry

Congratulations to Dr Andrew West, Fellow of the Royal Society of Chemistry Sonichem is celebrating the exciting news that our Chief Chemist, Dr Andrew (Andy) West,
Sonichem Crowdfunding with Seedrs

Help us Create Sustainable Ripples in the Chemicals Industry Through Crowdfunding

Invest in bio-based chemicals and start a ripple of change Petrochemicals permeate every nook and cranny of modern society, playing an integral role in the production
Speciality Chemicals Magazine October, with Sonichem Article

How Nature is Giving a New Face to Cosmetics – Speciality Chemicals Article

Our commercial director discusses the potential application of bio-based chemicals produced from the ultrasonic Sonichem biorefinery process in cosmetics. The bio-based chemicals cellulose, lignin and hemicellulose

Industry Associations

Confor Member Logo


A membership organisation supporting sustainable forestry and wood-using businesses.

IBioIC logo

Industrial Biotechnology Innovation Centre

An organisation that connects industry, academia and government to bring biotechnology processes and products to the global market.

Innovation centre of sustainable technologies logo


An R&D and collaboration hub for companies to translate sustainable chemical technologies into clean growth.