Abstract: A photobioreactor assembly, including panel having an array of equal radius, generally parallel, generally vertical and generally transparent tubes, where the tubes have a radius such that for a pre-determined microorganism preferred light intensity level, photosynthesis viable light is available at the center of each tube for an expected maximum culture density for that microorganism, an air supply operationally connected to panel and capable of maintaining a positive pressure within the panel, a water purifier operationally connected to the panel, and a water supply operationally connected to the water purifier. Each respective tube is connected in fluidic communication with each other.

Abstract: A photobioreactor assembly, including a first generally horizontal manifold, a second generally horizontal manifold positioned below the first generally horizontal manifold, an array of generally parallel, generally transparent tubes extending between the manifolds, an air supply operationally connected to at least one manifold, a water filter, a water purifier, a water supply operationally connected to the water purifier, a pH sensor positioned to measure the pH in the array, and an electronic controller operationally connected to the pH sensor, the air supply, the water purifier, and the water supply. Each respective tube is connected in fluidic communication with the first horizontal manifold, and each respective tube is connected in fluidic communication with the second horizontal manifold.

Abstract: A photobioreactor assembly, including a first generally horizontal manifold, a second generally horizontal manifold positioned below the first generally horizontal manifold, an array of generally parallel, generally transparent tubes extending between the manifolds, an air supply operationally connected to at least one manifold, a water filter, a water purifier, a water supply operationally connected to the water purifier, a pH sensor positioned to measure the pH in the array, and an electronic controller operationally connected to the pH sensor, the air supply, the water purifier, and the water supply. Each respective tube is connected in fluidic communication with the first horizontal manifold, and each respective tube is connected in fluidic communication with the second horizontal manifold.