Abstract-Constructed wetland, being simple inconstruction and maintenance and operation, is a biological process which intends to interact among media, plants, waste water and microorganisms for a better treatment of grey water from households. The objectives of this study were to perform quantitative analysis of grey water recycling using constructed wetland process (horizontal and vertical flow) and feasibility study of application of recycled water in daily use. It included a residential staff quarter, a residential hostel and a hospital as the subject area. The three different types of water consumption rate in different sectors in these areas and the amount of produced and recycled grey water were studied. The findings are, recycled grey water can be successfully used in several daily use purposes and the production of recycled water is much higher than demand. With the use of recycled water, it can be saved 17.62%,19.22% and 17.71% of total water of the three respective subject areas. Reduction of water bill to some extent and betterment of environment by improving the quality of downstream waste water and reduction in groundwater depletion by less withdrawal of water is also possible.Index Terms-Constructed wetlands, reusable water, water consumption, water scarcity.

There has been a sudden increase in population and in the establishment of different industries due to which we are having waste pollution problems, including plastic waste. Discarding of plastic waste is a major problem, as it is non-biodegradable. When we mix plastic waste with bitumen, we are able to enhance bitumen's physical properties for a specific road mix. Then, bitumen's stability and water resisting capacity is upgraded. Plus, it acts as a more superior binding material than without the addition of plastic waste. Through this work, we are able to find the optimum percentage of bitumen to be substituted with plastic waste. This will also act as a part of smart waste disposal in smart cities and improve the air quality with increase environmental, economic parameters of the place leading to the improvement in human health in urban areas.