Design of Aeration System for Water Treatment Plant

Abstract

Wastewater generated by the people living in metropolitan cities as well as in small cities has been a major problem and increasing industrialization aggravates this problem. So, it is very necessary to handle this wastewater very delicately to make our earth green and clean. Nowadays to eradicate wastewater problem the developed nations are using and developing are going forward to use the wastewater treatment plants. Commissioning cost of the plant is not a problem, but the running cost of the plant is great cause of concern for the industries as well as for the government also. Most of energy that is used for running the wastewater treatment goes to biological treatment unit.70-75percent of energy used by the wastewater treatment plant is spent to run the blower to deliver the air for aeration of wastewater. The energy needed by the blower depends upon the efficiency of the aeration system. The more will be the efficiency of the aeration system, lessor energy will be required by the aerations system. So, it is very crucial to design the whole aeration system i.e. from blower to diffuser including piping. This dissertation work focuses on the need of blower and the number of diffusers required because these two are the most important part of the aeration system. So, for a researcher is worth focusing on minimize the cost of running of the plant. Mostly the cost of running spends in the aeration system for biological treatment of the wastewater. The location the of the plays significant role in minimizing the cost of operation of the aeration system. So, we can say that the designing of aeration system is very important.