Wastewater Treatment Using Nature-Based Technique, a Drive Toward Circular Economy

Cost effective and nature based wastewater treatment is the need of the hour. It leads to the exploration of new ideas in wastewatermanagement. Wetland technology has emerged as a promising sustainable approach for wastewater treatment which mimic the nature based treatment.Wetlands are widely utilized in the treatment of municipal, industrial wastewater and stormwater, as they effectively remove organic matter andnutrients. Among the various types of wetlands, constructed wetlands (CWs) and floating wetlands systems (FWS) are the most commonlytried at different levels. It is significant in selecting the appropriate type of wetland that considers all factors can be challenging. To addressthis gap, a lab-scale trial study with the help of stabilisation tank (Integrated Constructed Wetland (ICW)) was conducted. According to a study,it has been proved that the proposed research is effective in reducing organic pollutants by 70–80%. It is best fit for domestic wastewatertreatment. Additionally, the use of floating wetlands has been proven to be an effective method for treating wastewater, particularly incontaminated water bodies mainly for purification of surface water, and has been identified as the best eco-friendly nature based technique. Itwill results in circular economy approach in wastewater management.