Impacts of geogenic and anthropogenic sources change seriously quality of groundwater. Inferior groundwater quality directly affects the human health, agricultural output and industrial sector. The aim of the present study is to evaluate the groundwater quality for drinking purpose and also to identify the pollutants responsible for variation of chemical quality of groundwater, using pollution index of groundwater (PIG). Groundwater samples collected from a rural part of Telangana State, India, were analyzed for pH, total dissolved solids (TDS), calcium (Ca 2+), magnesium (Mg 2+), sodium (Na +), potassium (K +), bicarbonate (HCO − 3), chloride (Cl −), sulfate (SO 2− 4), nitrate (NO − 3) and fluoride (F −). The groundwater is characterized by Na + and HCO − 3 ions. The values of TDS

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The chemical moreover petroleum industries are responsible for the production of a diverse range of organic contaminants that are extremely hazardous.  As a result, these industries have contributed to the accumulation of damaging impacts on the surrounding environment. These companies' waste water typically contains aromatic organic chemicals, which are notoriously difficult to degrade through natural processes and, as a result, are found to be pervasive in the environment. Being the straightforward units for an extensive variety of organic substances, In industries such as oil refining, production of phenol and the various derivatives of it, pharmaceuticals, productions of resins, textile dyes, paints, disinfectants, petrochemicals, and paper mills, phenol and its derivatives are used, and as a result, The effluents produced by these industries often contain phenol as well as derivatives of phenol. The existence of phenolic compounds in water systems is associated with significant increases in the likelihood of adverse health effects being experienced by both human beings and other organisms.  In light of this, the elimination of such potentially hazardous substances has garnered a significant amount of focus in recent decades.  The removal of phenolic pollutants from aquatic environments by biodegradation is a technique that is both environmentally friendly and economical. For the purpose of optimising procedure process, building bioreactor systems, and scaling up microbial wastewater treatment procedures to fulfil the requirements of the effluent quality standard, having an understanding of the kinetics of microbial growth and biodegradation is absolutely essential. The current study concentrates on a number of different research publications on Haldane kinetic models, which are utilised to Describe the processes involved in the growth of microbes on phenol.