**Abstract**

The proposed research will look into, and study the impact of artificial recharge of treated sewage in the unconfined aquifer. In order to enhance the focus on the development and planning for wastewater management, finding a solution for the disposal of treated sewage has become an important priority. As a result, a quantitative study is necessary to bring out the solution for the disposal of treated sewage. There are two types of artificial recharge of treated sewage practiced globally (a) confined aquifer recharge and (b) unconfined aquifer recharge. Artificial recharge in a confined aquifer may not be sufficient to meet the need for pollutant removal, but artificial recharge practice in an unconfined aquifer will meet the needs of pollutant removal as per the review of the literature. At the moment, treated sewage after tertiary treatment is reused in a variety of ways, such as landscapes in educational institutions, cooling towers in industry, and so on. However, the pollution control board insists zero disposal, then the disposal of treated sewage remaining after reusing will become a burning issue to handle and to dispose it. The idea of the recharge will serve the purpose of replenishment and also a solution for disposal in all-time weathering conditions.

**Keywords:** biochemical oxygen demand, chemical oxygen demand, total dissolved solids, groundwater recharge, pollutant transport

### **1. Introduction**

Water is a vital source of life for all creatures on the planet earth. Indians have developed various lifestyles as a result of the country's diverse culture and because of the constant growth in population, wastewater management has become a timeconsuming procedure, especially in urban areas. The demand for water is increasing every day, and so is the quantity of water squandered. Furthermore, due to a lack of adequate wastewater disposal management, the issue has gained momentum in virtually all cities inside the present environment.

The focus is on driving away sustainable development as a result of increased urbanization and the government's smart city program. In the current situation, adopting a systematic approach to achieve sustainability is critical, since pollution, climate change, and deforestation are on the rise on the one hand, while natural

existing water supplies are decreasing day by day on the other end. After China, India is second of the leading populated countries in the globe. Currently, 61,754 million liters of water per day (MLD) of sewage is generated per day, 22,963 MLD of sewage is processed, and 62% of sewage is discharged straight into water bodies without treatment, according to the estimates.

Water consumption for business and home use might reach 29.2 billion cubic meters by 2025 and the population is expected to cross 1.5 billion mark by 2050 [1]. Therefore, the aim has to be to utilize the treated sewage as an alternative source to replenish and conserve it for future purposes by employing an artificial recharge technique. This may increase the efficiency in the use of water by employing the conjunctive use of groundwater thereby reducing the demand for freshwater sources. Though the practice of stormwater recharge is adopted, the significant effects are still unknown after recharge for seasonal emerging pollutants. The artificial recharge system of treated sewage is a promising technique that has significant research potential to understand the mechanism with preliminary hydrogeological investigation to evaluate the impact on unconfined aquifer. This study will head into a new form of disposal for all weathering conditions and more importantly, the potential of the land to adopt this method needs to be addressed.
