Criteria for Choosing a Set of Technical Measures to Reduce Emissions on Municipal Solid Waste Landfills

2018 ◽  
Vol 22 (9) ◽  
pp. 52-57
Author(s):  
Yu.V. Zavizion ◽  
N.N. Slyusar ◽  
V.N. Korotaev

The analysis of technical measures allowing to control the municipal solid waste disposal (MSW) landfill with the purpose of emission reduction at different stages of the life cycle is presented. The review of the latest research in the field of implementation of technical measures at the operational and aftercare period is conducted: controlled water infiltration, collection of biogas, aeration of the landfill body, installation of methane oxidation cover systems. It is substantiated that the choice of a technical measure for management of the disposal for MSW landfill should be carried out taking into account the ultimate goal: reduction of biogas and leachate emissions, acceleration of waste decomposition processes, reduction of the impact of the landfill on environmental objects at the aftercare period. Criteria for choosing technical measures for reduction biogas and leachate emissions, boundary conditions and peculiarities of their implementation at different stages of the life cycle of the landfill have been established.

2016 ◽  
Vol 35 (1) ◽  
pp. 79-91 ◽  
Author(s):  
Bhupendra K Sharma ◽  
Munish K Chandel

Dumping of municipal solid waste into uncontrolled dumpsites is the most common method of waste disposal in most cities of India. These dumpsites are posing a serious challenge to environmental quality and sustainable development. Mumbai, which generates over 9000 t of municipal solid waste daily, also disposes of most of its waste in open dumps. It is important to analyse the impact of municipal solid waste disposal today and what would be the impact under integrated waste management schemes. In this study, life cycle assessment methodology was used to determine the impact of municipal solid waste management under different scenarios. Six different scenarios were developed as alternatives to the current practice of open dumping and partially bioreactor landfilling. The scenarios include landfill with biogas collection, incineration and different combinations of recycling, landfill, composting, anaerobic digestion and incineration. Global warming, acidification, eutrophication and human toxicity were assessed as environmental impact categories. The sensitivity analysis shows that if the recycling rate is increased from 10% to 90%, the environmental impacts as compared with present scenario would reduce from 998.43 kg CO2 eq t−1 of municipal solid waste, 0.124 kg SO2 eq t−1, 0.46 kg PO4−3 eq t−1, 0.44 kg 1,4-DB eq t−1 to 892.34 kg CO2 eq t−1, 0.121 kg SO2 eq t−1, 0.36 kg PO4−3 eq t−1, 0.40 kg 1,4-DB eq t−1, respectively. An integrated municipal solid waste management approach with a mix of recycling, composting, anaerobic digestion and landfill had the lowest overall environmental impact. The technologies, such as incineration, would reduce the global warming emission because of the highest avoided emissions, however, human toxicity would increase.


2014 ◽  
Vol 48 (5) ◽  
pp. 2920-2927 ◽  
Author(s):  
Pradeep Jain ◽  
Jon T. Powell ◽  
Justin L. Smith ◽  
Timothy G. Townsend ◽  
Thabet Tolaymat

2021 ◽  
Author(s):  
A G S Reddy ◽  
P N Rao ◽  
G Ravi Kumar ◽  
G Raja Babu ◽  
K Maruti Prasad

Abstract The impact of uncontrolled municipal solid waste disposal of 3800 tons per day on surface and groundwater in the downstream of Jawaharnagar dumping site was studied. The un-engineered solid waste dumping yard site spreading over an area of about 300 ha is located on topographic high (hillock), and falls in Madyala stream and Dammaiguda watersheds of Musi sub-basin. The area is underlain by granites of the Archaean age. Both surface and groundwater samples, collected covering hydrological cycles of 2011and 2012, were analyzed for major chemical constituents. During 2012, 15 samples of both seasons were tested for BOD, COD, and TOC. The mean values of some tested chemical constituents of surface water samples (15) were - EC 13066 m S/cm, TH 753, Na+ 813, K+ 530, HCO3− 978, Cl− 1304, and NO3− 262 (all in mg/l) which prove that the tanks and stream near dump yard were pools of leachate. The average values of contaminated groundwater samples among the four sampled sessions (17) indicate EC was above 5000 m S/cm, TH 1624, Cl− 1502, and SO42− 284 (all in mg/l) which were found much above the threshold values. Very few samples were found suitable for drinking purpose and most of the samples fall in Good class of WQI. Very high content of TOC, BOD, and COD in both surface and groundwater samples indicate the presence of organic pollutants sourced from domestic waste dumps. Wide temporal and spatial variability in the concentration of many ion species can be attributed to deviation in rainfall, topography, plume dynamics, and aquifer hydraulics. Low resistivity values (5 to 25 ohm.m) at a distance of 4 km from the dumping site and high infiltration rate (29 cm/hr) at Madyala stream, which were contaminant hotspots, indicate the mass flux was controlled by hydrological features. Scattered and limited distribution of contaminants can be accounted for heterogeneous nature of country rocks, retarded lateral and vertical flow of water which restricts the movement of contaminants to certain preferred pathways. The study supports the hypothesis of solid waste dumps were the epicenter of pollution which generates leachate and dissipate contaminants to the aquatic environment influenced by factors like soils, topography, and aquifer hydraulics and contaminant kinetics.


2020 ◽  
Vol 217 ◽  
pp. 04010
Author(s):  
Olga Guman ◽  
Olga Krinochkina ◽  
Victor Khomenko ◽  
Ekaterina Wegner-Kozlova

The aim of the study is both an analysis of existing basic solutions and innovations in the field of municipal solid waste management and new developments by domestic authors. The main research method was environmental monitoring in the impact zone of municipal solid waste (MSW) landfills. In the process of monitoring, the properties of the soils of the landfill bases were studied by testing them and further laboratory studies of lithological and mineral compositions, moisture and density, filtration and other characteristics. As a result, the following were established: the dependence of soil water permeability on particle size distribution, lithological, organ mineral compositions and the degree of their heterogeneity; maximum minimum-required thickness of screening soils at the base of MSW landfills in the Middle Urals. The established dependences of the engineering and geological characteristics of soils make it possible to use them as natural impervious screens, which can be successfully applied in other regions under similar conditions. Among the constructive solutions in the field of municipal solid waste management, the developments of domestic scientists, which were tested in the Moscow, Nizhny Novgorod and Sverdlovsk regions, are considered. Some of them relate to environmental protection in the area affected by landfills, while others are aimed at optimizing the operation of such landfills. The optimization technology consists in combining the operation and reconstruction cycles of municipal solid waste landfills within their land allotment. It allows involving previously unused materials into circulation and obtaining insulating material from “old-year” waste.


2020 ◽  
Vol 24 (7) ◽  
pp. 56-62
Author(s):  
Yu.V. Mozzhegorova ◽  
N.N. Slyusar ◽  
Yu.I. Pirogova

The problems of landfill gas collection and treatment at municipal solid waste landfills are considered. The analysis of the main methods of landfill gas treatment and use is carried out. The characteristic of the gas collection system used at the Kuchino MSW landfill is presented. Installation of a landfill gas treatment system on a flare at the stage of landfill closing will reduce methane emissions by 65 % in comparison with a landfill not equipped with such a system, and the fee for negative impact on environmental objects will decrease by 30 %. Based on the analysis of monitoring studies of landfill biogas emissions from the Kuchino MSW landfill, a decrease in the concentration of pollutants in the landfill gas after its treatment to the MPC level and below was established.


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