Challenge Synopsis:
ARLANXEO operates a BioIndustrial Park in Sarnia, Ontario, Canada. Included in the BioIndustrial Park is a biological oxidation wastewater treatment facility (BIOX). The BIOX facility uses aerobic digestion to treat contaminated effluent from several industrial sources in the Sarnia area. Through this process, over 1000 tonnes of biological sludge is generated and removed from the system per year. The sludge is currently sent to landfill for disposal. The challenge being proposed would be to determine a method for the biomass to be diverted from landfill and converted into a usable product. Preferably, this would be converted to a feedstock for the petrochemical industry. Feedstock that is used at ARLANXEO is primarily isoprene and isobutylene; however, in the local Sarnia area feedstocks include styrene, ethylene, 1,3-butadiene, alkanes and alkenes. Conversion to energy (methane, hydrogen) would be another option under consideration.
Context:
ARLANXEO has a commitment to reduce the waste and carbon footprint of its facilities. Landfilled biomass accounts for 25-35% of total waste generated at the site. This would significantly reduce the waste generated from the site.
In addition, by developing a biobased feedstock, this would be able to off-set the purchase of fossil fuels by processors.
Response Criteria:
- Conversion of the biomass to a usable feedstock
- Preference for conversion to ARLANXEO feed stock (isobutylene, isoprene)
- Energy conversion from biomass is also accepted
- Solutions that can accept liquid biomass are preferred
- Sludge dewatering can be performed by ARLANXEO as required