A microalga, Chlorella vulgaris, could grow in the recovered solution from
the low temperature catalytic gasification of itself, by which methane rich
fuel gas was obtained. All nitrogen in the microalga was converted to ammo
nia during the gasification, and the recovered solution, in which ammonia w
as dissolved, could be used as nitrogen nutrient. The result of the energy
evaluation indicated that the novel microalgal system for energy production
with nitrogen cycling could be coated. (C) 1999 Elsevier Science Ltd. All
rights reserved.