Ellis Island was the principal federal immigration station in the United States from 1892 to 1954. More than 12 million immigrants were processed here. Over time, the immigration station spread over 3 connected islands with numerous structures including a hospital and contagious disease wards.
Over 20 years of experience in the design of aerobic wastewater treatment plants have given wedotanks.comÂ® the know-how to design and construct the best precast concrete tanks and systems for both aerobic wastewater treatment plants and anaerobic wastewater treatment plants for nitrification/denitrification and biological Phosphorus removal.
Anaerobic means without oxygen, and respiration refers to the processes in a cell that convert biochemical energy, such as that found in glucose, into usable energy in the form of ATP. Waste products like carbon dioxide are also produced during this process. The fermentation process in anaerobic respiration is roughly 5 percent as effective as what cells can do when they have access to oxygen. An aerobic cycle may produce between 36 and 38 ATP molecules, while anaerobic respiration only creates 2 ATP molecules.