Topic
Organics, composting and digestion, from kitchen scraps to plant scale.
7 posts
A PBAT and PLA blend with TUV OK Compost Home certification. The disintegration is tested. The barrier performance and the microplastic question are not.
A Danish team found a bacterial enzyme that cleaves untreated polyurethane foam and nylon with no pretreatment. Three days of it removed 1.4 percent of a shoe sole.
Coway has launched a kitchen unit that digests food scraps with microbes cultured from doenjang rather than grinding and drying them. The mechanism is genuinely different. The throughput ceiling and the missing data are the story.
Japan's AIST reports a two-stage anaerobic digestion design that keeps acid production and methane production in separate vessels. The concept is decades old; the claim is that this configuration holds up at high loading.
A Chinese research group reports converting food waste into single-cell protein using salt-tolerant marine microorganisms. The salt tolerance is a genuine engineering advantage. Feed approval is where this stalls.
Certified compostable packaging is engineered to break down in a hot industrial windrow. Put it in a garden bin, a recycling bin or a landfill and it behaves like ordinary plastic — because in those conditions, it is.
Larvae turn organic waste into protein in about two weeks with high conversion efficiency. Whether that protein can legally be fed to anything is decided by regulation, not by biology.