Multi-Soil Layering System for the Treatment of Domestic Wastewater

A centralized wastewater treatment system is not available in villages or rural areas where the houses are scattered due to excess costing required for collecting the wastewater at one particular location. At these locations, decentralized domestic wastewater treatment units need to be installed. The multi-soil layering (MSL) system is such a decentralized treatment used for the treatment of domestic wastewater. The case study presents a prefabricated acrylic material model with the dimensions 50 cm (L) × 20 cm (W) × 60 cm (D) that is used for the experimental analysis. The potential of the MSL system for removing pollutants from wastewater is discussed by changing the operating conditions, such as hydraulic loading rate, organic loading rate and aeration and non-aeration conditions. In the case study, experimental setup were installed for the MSL system, and indoor tests are conducted. The effects of varying hydraulic loading rates and aeration and non-aeration conditions were studied to treat domestic wastewater using the MSL system. The study revealed that the flow rate of 0.2 m3/m2/d in an aeration condition was effective for treating domestic wastewater by using the MSL system. Once the ability to purify the soil is over, the soil can be further used on agricultural land as fertile soil. The study revealed that the MSL system proved to be efficient in treating domestic wastewater. The aeration and non-aeration methods are studied, and it is observed that the aeration system is more efficient. The multi-soil layering (MSL) system is such a decentralized treatment used for the treatment of domestic wastewater. Therefore, it is of vital importance to investigate the technological solution, which will have various advantages such as low cost, easy operation and maintenance and use of local materials that are easily available for domestic wastewater treatment. Hence it is valuable to study the MSL system as a cost-effective and feasible treatment facility and method for the removal of contaminant from domestic wastewater system is effective for preventing clogging and shortcut water flow, which are major constraints in conventional soil-based wastewater treatment systems. Hence, it is valuable to study the MSL system as a cost-effective and feasible treatment facility and method for removing contaminants from domestic wastewater. Hence, the proposed research is aimed to carry out an experimental investigation of the MSL technology using the lab-scale exper