Papers by Mohammad Azim Kashify
Abstract, 2019
Freshwater shortage around the world enhanced the investigations for alternative sources to susta... more Freshwater shortage around the world enhanced the investigations for alternative sources to sustain our future. Contamination, water scarcity and mismanagement of surface, ground, and waste water developing countries such Afghanistan; home of 32.3 million people increased the risk rate of annual death causes by waterborne diseases. It also endangered keeping the region a sustainable place. Grey water (wastewater excluded toilet) treatment on site and reuse as a continuum source will lead to solve a portion of issues. Natural Physical Low-Tech Treatment of Grey water is an effective option using multimedia layer filters from bark, sand, charcoal and gravel to treat generated domestic light grey water for reuse purposes. In this study, each person average consumption is considered 150 litters water per day where 40% of daily generated wastewater is accounted as light grey water (60 litters per person per day). Results presented, indicates several advantages: reduction in demand, recharging back groundwater, reduction in amount of contamination, maintenance and operation cost of septic tanks, minimising the health risks and water borne diseases. Outcomes supports that physical treatment of grey water in a decentralized system for reuse purposes has great potential in conserving water and providing alternative solutions for managing a portion of wastewater in developing countries. Treating on site and reusing light grey water can sustain water availability for the future. Identifying the advantages of reusing treated light greywater for irrigation and assess it is impacts on amount of water consumptions from the groundwater for garden area are the main objectives to: • Estimate the amount of water extracted for domestic and non-domestic use from groundwater in a property. • Estimate the amount of daily generated wastewater (greywater and Blackwater) from an urban property installed with modern sanitation system. • Discuss current installed sanitation systems and it is impact on groundwater pollution, human health and the environment. • Estimate impact of using treated greywater in large scale to bring back amenity, biodiversity, water quantity and quality benefits. • Review technologies used for treating greywater in most countries. • Asses the need for treatment of greywater prior to reuse in irrigation and recharging groundwater. • Indicates the treatment capacity of multimedia filter layers from bark, charcoal and sand in removal of contaminations from grey water. • Explore the opportunities and constraints using treated greywater commonly for irrigation of local plants, or washing cars at an urban environment like Kabul city the capital of Afghanistan.
Paper, 2019
Developing countries around the world faces environment challenges where these challenge turn int... more Developing countries around the world faces environment challenges where these challenge turn into opportunities in developed countries. Afghanistan home of 34 million (UNDP et al 2018) people confront contamination in potable water source and environment pollution from municipal wastes. Annual death causes by environment pollutions are rapidly increasing in Afghanistan. This situation endangers the future generation sustainability and keeping Afghanistan a liveable place. Four decades of continuing war kept Afghanistan researchers to find and implement solutions for environmental challenges Afghans encounter. To address the mentioned issues author suggested an innovative solution to turn municipal wastes to useful products. Implementing this solution can collaborates in improvement of municipal waste management and quality of afghan life in urban and rural areas, additionally creating employment opportunity. Environment pollution in Afghanistan is the major issue which highly contribute in air pollution and water source pollution. Lack of proper solid waste management along poor wastewater management system contribute in scaling up the problem in urban areas. Solution is designed for small community in Kabul the capital city of Afghanistan and home for 6 million people as sample which is applicable to similar situation communities in developing countries.
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Papers by Mohammad Azim Kashify