(117am) A Silk Fibroin-Based Wastewater Treatment System By Automated Air-Delivery

As our personal drinking water sources become increasingly contaminated, a large population on earth live without access to clean and safety water and almost every two minutes a child dies from a water-related disease. Thus, treating polluted water sources like rivers, lakes and streams becomes a matter of great urgency to alleviate water scarcity and supply safe drinking water. Nevertheless, existing commercial adsorbents such as activated carbon consume a significant amount of energy during mass production and have low removal efficiency when operating in harsh environments. Herein, a sustainable silk fibroin (SF) film is fabricated as an efficient bioadsorbent for wastewater remediation. The experimental results exhibited the fabricated SF films showed high adsorption capacities towards different types of water-soluble dye contaminants. The maximum adsorption capacity of SF films can reach up to 174.48 mg/g. Moreover, the SF films also demonstrated strong acid and alkaline resistance, allowing them to meet the harsh real wastewater treatment requirements (pH 1~13). On the other hand, in order to fulfill the dynamic and intricate treatment requirements of natural water sources, we integrated internet of things (IoT)-based real-time water quality monitoring part and the SF film based sustainable bioadsorbent into a complete treatment system. During the operation of the integrated system, the water quality data are real-time captured, processed and uploaded by the Raspberry Pi to Google Cloud. Simultaneously, the cloud server automatically analyzes data to develop an optimized treatment strategy. For the delivery of the treatment system to target water body (including the hard-to-reach sites), it is achieved by the Unmanned Aerial Vehicles autonomously. In conclusion, we provide a promising and closed-loop strategy for high-performance remediation and management of polluted natural water sources.