Chemical treatability study of disposed wastewater generating from sewage treatment plant in Ahmedabad city

Abstract

Development is necessary for a country to improve its economy. But along with the development due
to rapid industrialization, population explosion, disposal of waste to fresh water bodies etc has adverse effect on
the eco-system. Disposal of untreated or partial treated wastewater in water source directly is one of the most
common causes of water pollution. Wastewater is mostly generated from domestic, industrial, commercial,
agricultural, civil and structural waste. Common effluent treatment plant (CETP) and sewage treatment plants
(STP) – A collective effort for the treatment of effluent especially for cluster of small scale industrial units at
low unit costs are installed in cities for the treatment of industrial and domestic wastewater. Physical, chemical
and biological processes are available for the treatment of wastewater. The characteristics of treated wastewater
before disposal to freshwater body should be under the permissible limit given by Gujarat pollution control
board. Disposal of untreated sewage into water bodies leads to eutrophication which is increase in concentration
of chemical elements required for life. It also causes many health implications, negatively disrupt river and lake
ecosystem which leads to environmental degradation. The present study is focused to check the water quality of
disposed wastewater and to inform the authority, law makers and people about the genuine issues which can
affect them. Also quick action can be taken to control the pollution level