Environmental impact assessment of Gonabad municipal waste landfill site using Leopold Matrix

Sajjadi, Seyed Ali; Aliakbari, Zohreh; Matlabi, Mohammad; Biglari, Hamed; Rasouli, S S

doi:10.19082/3714

Cited by 16 publications

(16 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Leopold matrix was used for the selection of technological recommendations [68] ( Table 6). In the prepared matrix, the specific numerical values were assigned to each of the five parameters (O 2 concentration in a pile, temperature in a pile, final waste AT 4 index, final LOI, and moisture content in waste), defining the effectiveness of the composting process.…”

Section: The Efficiency Of Biowaste Composting Processesmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of the Spatial and Temporal Distribution of Process Gases within Municipal Biowaste Compost

Stegenta-Dąbrowska

Sobieraj

Pilarski³

et al. 2019

Sustainability

View full text Add to dashboard Cite

Composting processes reduce the weight and volume of biowaste and produce products that can be used in agriculture (e.g., as fertilizer). Despite the benefits of composting, there are also problems such as odors and the emission of pollutants into the atmosphere. This research aimed to investigate the phenomenon of process gas (CO, CO2, NO, O2) evolution within a large-scale municipal composter. The effects of turning frequency and pile location (outdoor vs. indoors) on process gas and temperature spatial and temporal evolution were studied in six piles (37‒81 tons of initial weight) over a six-month period. The biowaste consisted of green waste and municipal sewage sludge. The chemical composition and temperature of process gases within four cross sections with seven sampling locations were analyzed weekly for ~7–8 weeks (a total of 1375 cross sections). The aeration degree, temperature, CO, CO2, and NO concentration and their spatial and temporal distribution were analyzed. Final weight varied from 66% reduction to 7% weight gain. Only 8.2% of locations developed the desired chimney effect (utilizing natural buoyancy to facilitate passive aeration). Only 31.1% of locations reached thermophilic conditions (necessary to inactivate pathogens). Lower O2 levels corresponded with elevated CO2 concentrations. CO production increased in the initial composting phase. Winter piles were characterized by the lowest CO content. The most varied was the NO distribution in all conditions. The O2 concentration was lowest in the central part of the pile, and aeration conditions were good regardless of the technological regime used. Turning once a week was sufficient overall. Based on the results, the most favorable recommended procedure is turning twice a week for the first two weeks, followed by weekly turning for the next two weeks. After that, turning can be stopped unless additional removal of moisture is needed. In this case, weekly turning should continue until the process is completed. The size of the pile should follow the surface-to-volume ratio: <2.5 and <2 for cooler ambient conditions.

show abstract

Section: The Efficiency Of Biowaste Composting Processesmentioning

confidence: 99%

“…Table 6. Assessment criteria of a matrix for evaluation of biowaste composting (Leopold method [68]). Table 7.…”

Section: The Efficiency Of Biowaste Composting Processesmentioning

confidence: 99%

Analysis of the Spatial and Temporal Distribution of Process Gases within Municipal Biowaste Compost

Stegenta-Dąbrowska

Sobieraj

Pilarski³

et al. 2019

Sustainability

View full text Add to dashboard Cite

show abstract

“…Sajjadi et al [28] used the Leopold matrix to analyze the environmental impacts of the landfill in the municipality of Gonabad and other waste management options that could be implemented. Adjustments and modifications were made to the Leopold matrix to better analyze the problem, showing the flexibility that the matrix has to adapt to the most varied types of projects.…”

Section: Resultsmentioning

confidence: 99%

Turbining the Leopold Matrix

Figueiredo¹,

Santos²,

Ramos³

2020

IJAERS

View full text Add to dashboard Cite

The conservation of natural resources is a fundamental issue, in addition to being, in many cases, regulated by laws and decrees. In Brazil, resolutions require a rigorous environmental impact assessment to be carried out and the EIA (Environmental Impact Study) and RIMA (Environmental Impact Report) to be generated in any projects with activities that potentially cause degradation to the environment. A widespread way of assessing environmental impacts is the interaction matrix known as the Leopold Matrix. Many scientific articles use the original or modified Leopold matrix to perform the assessment of environmental impacts, although they commonly point out disadvantages or limitations in the use of the matrix. The purpose of this article is to propose a new matrix, named "Leopold Turbinated Matrix", with the elimination of the identified disadvantages, in addition to enhancing the advantages, without visually loading the matrix, in addition to including new elements, which enhance its ability to evaluate and predict environmental impacts. For this, an in-depth study was carried out on the applications of the matrix based on national and international scientific and technological. The developed "Leopold Turbine Matrix"solve identified disadvantages or limitations, in addition to including new criteria, so that it constitutes a new powerful, efficient and comprehensive tool regarding the assessment of environmental impacts.

show abstract

“…This matrix consists of 100 activities and 88 environmental factors to form 8800 cells, each cell is diagonally bisected to show activity from horizontal axis and environmental factor from vertical axis. These matrices are formed for four environments: biological, physical, social and economic on the horizontal axis against the activities that occur in the project on the vertical axis [8]. In each cell there is a distinction between the value and importance of the impact on a scale of 1 -10 [5].…”

Section: Leopold Matrix Methodsmentioning

confidence: 99%

“…This method has been developed by Leopold in the late 1960s of the last century. In which all environmental consequences of a project are considered and is approved by the American National Environmental Law [8]. This tool takes in consideration the harmful or the beneficial environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

The Environmental Impact Assessment Of The Spent Engine Oil Recycling Plant By Using Leopold Matrix: Case Study Recycling Plant In Al-Diwaniyah City –Iraq

Alkasser¹,

Abbas²

2021

Al-Qadisiyah Journal of Pure Science

View full text Add to dashboard Cite

The study achieve to make an environmental impact assessment for a spent engine oil recycling plant in AL-Diwaniyah city – Iraq. The assessment has been carried out using Leopold matrix. The studied plant deals with the bentonite clay as adsorbent material for removing the impurities from spent oil. The waste of bentonite clay which has been discharged as by- product waste without any minimal level of remediation which is harmful to the all environmental components in addition to that, the plant discharges air pollutants during the operation. Leopold matrix is a simple method in terms of applying and using, it can be used easily for a comparison among different projects and gives clarified results. Moreover, the significant characteristic is its ability to covering biological, physical, economic and social environment. From the results of Leopold matrix analysis, it can be observed that the maximum impact of the plant was on physical components in both quantity and importance, while there are some positive impacts on social components. Generally, all the impacts that caused from the plant is low on the environment by the comparison with maximum locally index of environmental impact value.

show abstract

Environmental impact assessment of Gonabad municipal waste landfill site using Leopold Matrix

Cited by 16 publications

References 14 publications

Analysis of the Spatial and Temporal Distribution of Process Gases within Municipal Biowaste Compost

Analysis of the Spatial and Temporal Distribution of Process Gases within Municipal Biowaste Compost

Turbining the Leopold Matrix

The Environmental Impact Assessment Of The Spent Engine Oil Recycling Plant By Using Leopold Matrix: Case Study Recycling Plant In Al-Diwaniyah City –Iraq

Contact Info

Product

Resources

About