2023 pp. 139-148 Vol. 22 p-ISSN: 0972-6268 (Print copies up to 2016) No. 1 Nature Environment and Pollution Technology An International Quarterly Scientifc Journal Original Research Paper e-ISSN: 2395-3454 Open Access Journal Original Research Paper https://doi.org/10.46488/NEPT.2023.v22i01.012 An Integrated GIS-AHP Approach for Municipal Solid Waste Landfill Siting in Srikakulam District, Andhra Pradesh Penki Ramu*† , Basina Sai Santosh* and Praveen S.** *Department of Civil Engineering, GMR Institute of Technology, Rajam, Andhra Pradesh, India **Head of Products, ECOSTP Technologies Private Limited, Bengaluru, 562125, India †Corresponding author: Penki Ramu; ramu.p@gmrit.edu.in ABSTRACT The availability of land for proper waste disposal is one of the most important and emerging potential challenges in most big cities. Although some attempts are being made to minimize and recover garbage, landfill disposal continues to be the dominant method of waste disposal. An improper landfill site can negatively impact the environment, the economy, and the environment. Thus, it should be carefully chosen, taking into consideration both rules and standards from other sources. To examine all aspects of this study, an integration of the “Geographic Information System (GIS)” and the “Analytic Hierarchy Process (AHP)” was incorporated for land-fill site selection. Various parameters were examined to make decisions about landfill site selection. These parameters included slope, elevation, soil texture, LULC, surface water, groundwater table, road network, historical areas, and residential areas. An analytic-hierarchy process was used to determine the relative importance of each parameter, and a final site suitability map was created. With an equal interval classification method, the final index model was categorized into four categories, which included “unsuitable”, “less suitable”, “moderately suitable” and “suitable”. As a result, 30.28% of the study area was less suitable, 28.49% was moderately suitable, 12.39% was suitable, and 28.84% of the study area was unsuitable for landfilling. INTRODUCTION The current environmental concerns have stimulated the interest of institutions, industries, and the general public in two critical concepts: sustainability and circular economy (Ingrassia et al. 2020, 2019). A circular economy-based production would allow us to meet current needs without compromising the ability of future generations to meet their own needs by optimizing resources, energy consumption, wastes, and emissions through protracted design, maintenance, and 5R(repair, reuse, remanufacturing, refurbishing, and recycling). This is in contrast to linear economies based on a “make-use-dispose” model of resource consumption (Ingrassia et al. 2020, Penki & Rout 2021, Silva de Souza Lima Cano et al. 2022). Many of them believe that sustainability is associated with environmentalism, but it is based on three pillars: economy, social, and environmental sustainability. Solid waste management (SWM) has attracted new attention due to the urgent requirement to adhere to the circular economy (CE) principles and improve waste management rather than disposing of waste in landfills or dumping it in the environment (Silva de Souza Lima Cano et al. 2022). As a means of achieving CE, it is necessary to devise strategies for recovering and preserving the waste generated at all stages of both the production and consumption value chains, whether it is man-made materials, natural resources, or manufactured materials, components, and goods (Geneletti 2010, Ingrassia et al. 2020). This refers to the recovery of resources from the garbage. The recovery of resources from garbage is not an easy task. It is dependent on the different compositions of solid waste and the various collections and management schemes used across the world (Kamdar et al. 2019, Nas et al. 2010, Penki & Rout, 2021). On the other hand, recovering resources from garbage is a difficult process; garbage must be disposed of efficiently and scientifically while safeguarding health and the environment. Perhaps, the construction of landfill sites for multiple purposes provides a clear perspective for resource recovery and contributes value in the real world. However, getting this done by a manual Nat. Env. & Poll. Tech. Website: www.neptjournal.com Received: 27-05-2022 Revised: 04-07-2022 Accepted: 19-07-2022 Key Words: Municipal solid waste Landfll Geographic information system Analytic hierarchy process Site suitability map ORCID details of the authors: Penki Ramu: https://orcid.org/0000-0001-7551-9630