R.K. Srivastava

GIS‐based disaster management: A case study for Allahabad Sadar sub‐district (India)

Purpose – This paper aims to demonstrate a Geographic Information System (GIS)‐based study on development of District Disaster Management System for floods for Allahabad Sadar Sub‐District (India).Design/methodology/approach – An approach has been designed to explore the scope for the combination of Disaster Management and GIS. The flood‐prone areas have been identified and their positions are marked using ArcView 9.1. GIS has been exploited to obtain the spatial information for the effective disaster management for flood‐affected areas.Findings – ArcView 9.1 has been used as a tool for storing all types of relevant data for analysis and decision making. The various thematic maps include road network map, drinking water sources map, land use map, population density map, ward boundaries and location of slums.Originality/value – The paper proposes evelopment of a GIS‐based early response system, and an emergency preparedness plan for the Allahabad Sadar sub‐district and also analysis of the impact of flood ...

Towards sustainable municipal solid waste management in Allahabad City

Purpose – This paper aims to describe the present waste management scenario in the city of Allahabad listing the gaps in the waste management system.Design/methodology/approach – The research work was divided into three stages. The first stage was the collection of background data regarding municipal solid waste management systems such as waste generation, waste collection, treatment and disposal methods. The second stage involved data organization and data analysis. The third stage provided the conceptual framework that has been developed for MSW management, and finally a sustainable and suitable waste management option was provided for improving the MSW management in Allahabad.Findings – The existing solid waste management approach in the city is highly unprofessional and lacking in scientific methodologies. There is neither proper collection nor proper treatment and disposal of waste. Most of the waste is dumped in low lying areas leading to pollution of land, air and water due to leachate generation.P...

Sustainable drinking water management strategy using GIS: case study of Allahabad City (India).

Purpose – The purpose of this study is to develop a methodology for sustainable drinking water management by assessing the existing state of the water supply system in the study area (Allahabad, India). An attempt is made to identify various problems and gaps in the existing system and evolve solutions for the present water supply problems in a GIS framework. Finally, the paper proposes a conceptual framework for sustainable drinking water management.Design/methodology/approach – The study was conducted in four stages. The first stage involved collection of data and background information through various primary and secondary sources including reports and publications of various organizations. This was followed by discussions with various officials of Uttar Pradesh (UP) Jal Nigam (Water Corporation), Jal Sansthan (Water Board), State Ground Water Board, Central Ground Water Board and Municipal Corporation of the city. The second stage involved field studies in a few zones of the city. The third stage invo...

An assessment of air pollution impact for an Indian highway project

Purpose – The paper aims to demonstrate a geographic information system (GIS) based study on environmental impact assessment (EIA), due to air pollution, for a highway project.Design/methodology/approach – An approach has been designed to explore the scope for the combination of EIA and GIS in development for the proposed Allahabad Bypass Project. The air quality in the study area has been quantified in terms of the air pollution index (API). GIS has been exploited to obtain the spatial information for the prediction of air pollution impact at different suburban and rural areas adjacent to the stretch of bypass.Findings – The study has enabled the researchers to understand the variation in air quality along the total stretch of the bypass keeping in view the “with” and “without” project scenarios. The results obtained from the study show considerable increase in air pollution levels from baseline to the projected period of 20 years, due to gradual increase in vehicular traffic along the highway.Originalit...

Experimental Studies on Heavy Metal Extraction from Contaminated Soil Using Ammonium Citrate as Alkaline Chelate during the Electrokinetic Process

Researchers have performed experimental studies using ammonium citrate (AC) during the electrokinetic (EK) remediation process for the extraction of cadmium (Cd) and copper (Cu) from the contaminated soil. They evaluated the efficiency of ammonium citrate by considering it as a washing solution and a purging solution at the anode electrode compartment. The efficiency of electrokinetic extraction was observed to be significantly influenced by the pH and buffering nature of the soil medium. The experimental studies indicate that the removal of cadmium and copper was 48.9% and 30.0%, respectively, when ammonium citrate was used both washing and purging solution. The solubility of both cadmium (Cd++) and copper (Cu++) in EK-treated soils has also been estimated by sequential extraction studies with deionized (DI) water. The analytical techniques, X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscope (SEM) provide the evidence of migration of cations during treatment of contaminat...

Enhanced Electrokinetic Remediation of Soil Contaminated with Heavy Metals

The experimental set-up was designed to examine the removal of heavy metals cadmium and copper from clayey soil by electrokinetic (EK) remediation process. Different enhancement agents such as chelating (ammonium citrate) and surface active agent (tween-20) have been tested for better removal of the metallic species by electrokinetic process. Applied voltage was 35 V DC and time duration was 120 h. A large pH influence has been observed over removal of metals. The results showed that the ammonium citrate during remediation process enhanced the removal rate of cadmium (48.8%) and copper (30.0%) compared to experiments with tween-20. EK treated soil samples were analysed by X-ray diffraction (XRD) and X-ray fluorescence (XRF) to understand the mineralogical changes during electrokinetic process.

An approach for designing appropriate water tariff structure: case study of Allahabad City (India)

This paper is an attempt to bring out the issues that are relevant and crucial for determining appropriate tariff for urban water services. It discusses different tariff structures being used in India and brings out the issues involved in pricing urban water services. The paper also includes study of existing water tariff structure in Allahabad City (India) and identifies merits and demerits in existing tariff structure. A tariff structure has also been proposed for Allahabad City. Comparison between the existing and proposed tariff has been done so as to justify the proposed tariff structure.