In terms of the applications on the ground, the blue-green alga, Spirulina platensis is more suitable to be used as a fertilizer or fish bait, for it is difficult for people to accept alga cultivated with the human urine as the substrate as food. However, it cannot be denied that there are large amounts of beneficial substances in Spirulina platensis.

As for pathogens, the alga definitely has to be disinfected before being used to prevent bacterial pollution. As one kind of biological energy, the Spirulina platensis contains an enzyme that can generate hydrogen energy.

The alga we cultivated lived on the simulated urine rather than the real urine, therefore, we cannot confirm whether there is any heavy metal accumulation in the alga.

Best regards,
Liu Hong

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While it might offend the sensibilities of the most who live in denial, we eat the plants the greedily soak up the nutrients left behind by animals that use our gardens and farms as a convenient loo. This does not even address the decaying carcasses of creatures that don’t get a proper burial or cremation (not discussing the merits of “proper” here).

I say, why not? It’s just a scientific extension of what has been happening for billions of years. Besides, those of us who drink martinis are drinking the waste products of a certain fauna.

Finally, use it as a fuel? I rather fancy thinking of my car’s fuel tank as yet another powder room.

Good article.