Browsing by Author "M. Hakimi Ibrahim"

Now showing 1 - 5 of 5

An overview for exploring the possibilities of energy generation from municipal solid waste (MSW) in Indian scenario
(2011) R.P. Singh; V.V. Tyagi; Tanu Allen; M. Hakimi Ibrahim; Richa Kothari
The energy crisis and environmental degradation are currently two vital issues for global sustainable development. Rapid industrialization and population explosion in India has led to the migration of people from villages to cities, which generate thousands tons of municipal solid waste daily, which is one of the important contributors for environmental degradation at national level. Improper management of municipal solid waste (MSW) causes hazards to inhabitants. The management of MSW requires proper infrastructure, maintenance and upgrade for all activities. The MSWM (municipal solid waste management) system comprises with generation, storage, collection, transfer and transport, processing and disposal of solid wastes. In the present study, an attempt has been made to provide a comprehensive review of MSW management to evaluate the current status of waste to energy facilities for sustainable management, which will be helpful in tackling this huge quantity of waste and the problem of energy crisis. A critical review of known MSW management practices/processes in Indian scenario, which will give an idea to investors about the market potential, the maturity of the practicing technologies, and the environmental and economical aspects was also evaluated with its advantages and disadvantages. © 2011 Elsevier Ltd. All rights reserved.
Energy recovery potential and environmental impact of gasification for municipal solid waste
(Taylor and Francis Ltd., 2019) Barkha Vaish; Bhavisha Sharma; Vaibhav Srivastava; Pooja Singh; M. Hakimi Ibrahim; Rajeev Pratap Singh
Currently the world is facing numerous environmental problems associated with waste management, climate change and global warming. Therefore, research and development has shifted towards utilising solid waste as an alternative to diminishing fossil fuels. The availability of large amounts of waste and its potential to supply a substantial amount of energy have been widely recognised by the scientific community. Municipal solid waste can be transformed into usable forms of energy through either biological or thermochemical processes (viz. combustion, pyrolysis and gasification). Gasification is considered one of the most efficient routes to convert waste into energy, and is a widely accepted technology that harnesses energy stored in waste. Moreover, for any process to be feasible overall its environmental performance has to be taken into consideration. Recent reports have supported the fact that the gasification process can be carried out with no threat to the environment or human health. The coming decades will reveal the environmental performance of various commercial waste gasifiers currently in operation as strong competitors of other thermochemical conversion processes. Therefore, this review aims to understand the process of gasification, energy recovery potential, environmental impact and technical challenges to tackle the problem of climate change and ultimately reach the goal of sustainability. © 2017, © 2017 Informa UK Limited, trading as Taylor & Francis Group.
Land application of sewage sludge: Physicochemical and microbial response
(2011) Rajeev Pratap Singh; Pooja Singh; M. Hakimi Ibrahim; Rokiah Hashim
As a result of rapid urbanization, industrialization, and uncontrolled population increase, waste management has become a worldwide problem. In the 2001 census, the urban population of India comprised 285 millions, which accounted for 27% of the total population of the country. The share of urban population has increased from 19.9% in the year 1971 to 27.8% in the year 2001 (Vaidya 2009). The decadal growth from 1991 to 2001 of the urban population was 31.2%. One of the main reasons for increasing urbanization is the migration of rural populations to urban centers for employment. The unprecedented growth of this urban population has put tremendous pressure on the quality of life regarding housing, water, and power supply, and water, air, and soil quality deterioration. A decline in environmental quality from waste generation in these urban centers, especially solid waste, is of major and growing concern. © 2011 Springer Science+Business Media, LLC.
Management of urban solid waste: Vermicomposting a sustainable option
(2011) Rajeev Pratap Singh; Pooja Singh; Ademir S.F. Araujo; M. Hakimi Ibrahim; Othman Sulaiman
Solid waste management is a worldwide problem and it is becoming more and more complicated day by day due to rise in population, industrialization as well as changes in our life style. Presently most of the waste generated is either disposed of in an open dump in developing countries or in landfills in the developed ones. Landfilling as well as open dumping requires lot of land mass and could also result in several environmental problems. Land application of urban/municipal solid waste (MSW) can be carried out as it is rich in organic matter and contains significant amount of recyclable plant nutrients. The presence of heavy metals and different toxics substances restricts its land use without processing. Vermicomposting of MSW, prior to land application may be a sustainable waste management option, as the vermicast obtained at the end of vermicomposting process is rich in plant nutrients and is devoid of pathogenic organism. Utilization of vermicast produced from urban/municipal solid waste in agriculture will facilitate in growth of countries economy by lowering the consumption of inorganic fertilizer and avoiding land degradation problem. Vermicomposting of urban/MSW can be an excellent practice, as it will be helpful in recycling valuable plant nutrients. This review deals with various aspects of vermicomposting of MSW. © 2011 Elsevier B.V.
The effect of oil palm decanter cake on the accumulation of nutrients and the stomatal opening of Solanum melongena (brinjal) plants
(Springer Berlin Heidelberg, 2016) Asha Embrandiri; Parveen Fatemeh Rupani; Sultan Ahmed Ismail; Rajeev Pratap Singh; M. Hakimi Ibrahim; Mohd. Omar b. Abd. Kadir
Purpose: Research has shown that oil palm decanter cake (DC) serves as a potential source of nutrients for plant growth. This study therefore investigated the applicability of decanter cake (DC) as an amendment to soil for the growth of Solanum melongena (brinjal) at three ratios 10, 20, 30 % DC and suitable controls (0 %). Methods: Seeds of brinjal were sown in soils amended with decanter cake at 10, 20, 30 % w/w and 0 % as control. Nutrient enrichment factors were calculated from the concentration of selected metals (Cu, Ca, Fe, Zn and Mg) in plant parts. The scanning electron micrographs were also taken to measure the stomatal opening/closing due to the effect of excess nutrients on the leaf structure. Results: Enrichment factor (EF) values in this study were all below 3 indicating low enrichment of metal ions from soil to plants. SEM studies of the leaf epidermis of the test plants revealed the closure of guard cells with increasing decanter cake treatments. Conclusions: Decanter cake at 20 % amendments with soil could serve as a source of soil amendment for cultivation of S. melongena plants. © 2016, The Author(s).