Carbon Quest, Inc is a CA-registered Benefit Corporation that has designed an energy efficient advanced wastewater treatment process to permanently sequester carbon dioxide. The patent-pending and carbon-negative process can reverse unsustainable trends by simultaneously recovering wastewater nutrients that lead to eutrophication of marine ecosystems (i.e. “dead zones”), destroy toxic chemicals of emerging concern (CEC) typically found in wastewater before release into waterways, permanently sequester carbon dioxide, and produce an algal biochar product used as a fertilizer that reduces the need for Haber-Bosch nitrogen and phosphate mine depletion.