Power |
Telecom |
Transport |
Others
Selection of potential waste disposal sites around Ranchi Urban Complex using Remote Sensing and GIS techniques  Upasana Shrivastava M.Tech. Remote Sensing Student,Dept. of Remote Sensing Birla Institute of Technology,Ranchi- 835215 E-mail: upasana_9211@rediffmail.com  Dr. M. S. Nathawat Professor & Head, Department of Remote sensing Birla Institute of Technology,Ranchi-835215, Jharkhand. Tel: +91-651-276003, Fax: +91-651-275401 E-mail: msnathawat@bitmesra.ac.in
1.0 Introduction
Urbanization has brought forth several maladies and suffering to human kind, besides bringing economic and cultural development in its fold. Due to pressure of urbanization most of the cities are growing fast and sometimes they develop beyond the planned limits. Generally the unplanned areas of the city contains a quarter of the total population, where the spatial information is missing because of non-availability of up to date maps. Due to increasing industrialization and population large quantities of wastes are being generated in different forms such as- solid, liquid, sludge and gases. Each city produces tones of solid wastes daily from house holds, hospitals, industry offices, market centers etc. some of these are biodegradable some are non biodegradable and Hazardous waste. Wastes are directly thrown away on the street roads, city garbage collecting places etc. Out of which most of it still remain there, which later pile up and chocks cities drainage lines. Earlier waste disposal did not pose problem due to less population and lack of public awareness. But due to rapid urbanization, proportionate increase in domestic and industrial solid waste generation was observed in large cities. The collection, handling and disposal of this large waste with conventional methods have become increasingly difficult. The efficacy of solid waste disposal depends upon selection of proper site and there are several issues that have impact for site selection . Broadly they are divided into three categories i.e. Economic, Social and Environmental. The Geological, Geotechnical and Hydrogeological parameters fall within the environmental category. The ultimate aim is to select a site where the greatest protection of the environment is provided. Site selection is a part of environmental planning, where the principal part is of problem to select Landscape that is functional safe. Objectives: The objectives of the study are stated below:
Spatial analysis for Site Selection: We have used spatial analyst of Arc View for selection of waste disposal sites. As we all know that GIS is a system of computer hardware, and software, designed to allow users to collect manage analyze and retrieve large volume of spatially referenced data and associated attribute data collected from a variety of sources. It plays a special role in the context of generating and managing complex environmental database system. The use of GIS is found ideal for preliminary waste disposal site selection studies. This technology makes it possible to relate the Ground water of a site with the health parameters of its inhabitants. The ability of overlay gives it a unique power in helping us to make decision about the identification of waste disposal sites. Once a GIS Database is developed, it can provide an efficient and cost effective means of analyzing the best site for disposal of solid waste. Manual method of selection of such sites is very tedious. Integration and correlation of the information related to the factors considered for site selection, which is very complex, can be handled easily with GIS. We have taken experts opinion from various fields, which was required to finalize the parameters, which governs the selection of such site. Study Area: - Ranchi Urban complex has been chosen as our study area which is now declared as the capital of newly created Jharkhand State. Ranchi Urban Complex is Urban Agglomeration of Ranchi, Doranda, Namkum, Hatia, Kanke, Jaganath nagar and some other small towns. It is situated on the central plateau of Chotanagpur with its cardinal points 23 degree23’ North latitude and 25 degree 23’East Longitude with an altitude of 2128 feet above mean sea level. Ranchi Regional development Authority (RRDA) covers an area of 612340 hectares out of which15914 hectares covered by urban centers. Ranchi Municipal Corporation covers 177.19km squares area. According to 2001 census data the population of Ranchi Urban Agglomeration is 862850 and %literacy is 74.39. Data Used:- Following data was used for the study. Spatial data:-
|