Mi-Hy - Microbial Hydroponics for nutrient recovery and utilisation

Mi-Hy首次将微生物燃料电池（MFC）技术和水培技术结合在一起，从而将假根际（扩展的根际群落）引入到典型的“无土”水培系统配置中。Mi-Hy系统将调节氮的形态，植物根系微生物群优化氮的吸收，并动员磷，避免对化肥的需求。这个循环的、可持续的平台将碳转化为生物质，并从废水中回收氮。通过共享的微生物组连接，生物发电生物电化学系统（BES）微生物燃料电池（MFC）平台：i)优化为以1mW/1mL的原料从废水中发电（为MFC设定了新的基准）；ii)驱动波长特定的led来优化光合作用；iii)能够利用相邻的mfc回收有用的生物分子，以调节执行微生物电合成（MES）的主要微生物电解细胞（MEC）的氧化还原电位。这一新颖的发展将mfc和mec结合在一起。由于它们具有共同的微生物成分，因此它们可以在技术上结合起来，而不需要外部（基于化石燃料的）能源。为了实现这一目标，Mi-Hy的目标是利用代谢工程在野生型共生菌株中设计生物膜。这种新一代水培系统在不久的将来将应用于农业和城市环境。它提供了一个智能的、分散的、低功耗的数字基础设施，具有可持续的有机解决方案，这符合使命城市和气候适应的雄心（城市农业、精准园艺、废水处理、能源生产、高价值化合物（如维生素）的合成）。Mi-Hy还将邀请来自不同领域的设计师和利益相关者共同创造未来的应用程序。最终，它预测并促进了一个更健康、可持续、以自然为基础的城市景观。

For the first time, Mi-Hy brings together Microbial Fuel Cell (MFC) technology and hydroponics, thereby introducing a prosthetic rhizosphere (an extended rhizosphere community) to the typically “soil-less” configuration of hydroponics systems. The Mi-Hy system will modulate nitrogen forms, plant root microbiomes optimise nitrogen uptake, and mobilise phosphorous, averting the need for chemical fertilisers. This circular, sustainable platform turns carbon into biomass and reclaims nitrogen from wastewater streams. Linked through shared microbiomes, the bioelectricity generating Bioelectrochemical System (BES) Microbial Fuel Cell (MFC) platform is: i) optimised to generate electricity from wastewater at 1mW/1mL feedstock (setting a new benchmark for MFCs); ii) driving wavelength-specific LEDs to optimize photosynthesis; iii) capable of recovering useful biomolecules using adjacent MFCs to modulate the redox potential of a workhorse Microbial Electrolysis Cell (MEC) performing microbial electro synthesis (MES). This novel development brings together MFCs & MECs. Since these share common microbial constituents, they can be technologically combined without the need for external, (fossil-fuel based) energy sources. To achieve this goal, Mi-Hy aimsto design biofilms using metabolic engineering in wild type symbiotic strains. This next-generation hydroponics system has near-future applications in agriculture and in the urban environment. It delivers a smart, decentralized, low power digital infrastructure with sustainable organic solutions, which are in line with the ambitions of the Missions Cities & Climate adaptation (urban agriculture, precision gardening, wastewater treatments, energy generation,synthesis of high value compounds e.g., vitamins). Mi-Hy will also invite designers and stakeholders from various sectors to co-create future applications. Ultimately, it anticipates and facilitates a healthier, sustainable, nature-based urban landscape.