29 Feb '16, 9am

Huge Cuts In Brick CO2 Emissions Coming From Startup BioMason

I think it’s from the yeast extract which is high in carbon. I found this description of the process: “The raw input materials used in biocement production include sporosarcina pasteurii (bacteria anaerobically grown with NaCl, yeast extract), while cementation feedstocks include yeast extract, urea, and calcium chloride. These inputs are inexpensive, globally abundant, and manufactured in ambient temperatures. The water component used to deliver the cementation reagents is recycled in a closed-loop system and reused in the manufacturing process. Biomass ammonium by-products are captured in a closed-loop system. Since biological cements are formed in a different crystalline process than Portland based cements, recent tests have been successful with seawater. The production of yeast extract is a by-product of the brewing industry and/or fermented in high volumes with yeast ...

Full article: http://cleantechnica.com/2016/02/29/huge-cuts-in-brick-co...

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