Suitability of hazard rating systems for air contamination from municipal solid waste dumps and improvements to enhance performance

2017 ◽  
Vol 44 (7) ◽  
pp. 549-557
Author(s):  
Amit Kumar ◽  
Manoj Datta ◽  
Arvind K. Nema ◽  
R.K. Singh
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Rating Systems ◽  
Air Contamination ◽  
Waste Dumps ◽  
Hazard Rating ◽  
Hazard Rating Systems

DEVELOPING AND SELECTING SLOPE STABILIZATION TECHNIQUES IN MANAGING SLOPE FAILURES

2016 ◽  
Vol 12 (4) ◽  
Author(s):  
Ari Sandyavitri
Keyword(s):  
Retaining Wall ◽  
Value Engineering ◽  
Rating Systems ◽  
Slope Stabilization ◽  
Rockfall Hazard ◽  
Proactive Approach ◽  
West Sumatra ◽  
Hazard Rating ◽  
Hazard Rating Systems ◽  
Steep Slopes

This paper objectives are to; (i) identification of risky slopes (within 4 Provinces in Sumatra including Provinces of Riau, West Sumatra, Jambi and South Sumatra encompassing 840 kms of the “Jalan Lintas Sumatra” highway) based on Rockfall Hazard Rating Systems (RHRS) method; (ii) developing alternatives to stabilize slope hazards, and (iii) selecting appropriate slopes stabilization techniques based on both proactive approach and value engineering one. Based on the Rockfall Hazard Rating Systems (RHRS) method, it was identified 109 steep slopes prone to failure within this highway section. Approximately, 15 slopes were identified as potential high-risk slopes (RHRS scores were calculated >200 points). Based on the proactive approach, seven riskiest slopes ware identified. The preferred stabilization alternatives to remedy most of these slopes are suggested as follow; either (i) a combination of retaining wall and drainage, or (ii) gabion structure and drainage. However, different approaches may yield different results, there are at least 2 main consideration in prioritizing slope stabilization; (i) based on the riskiest slopes, and(ii) the least expensive stabilization alternatives.

Assessment of the impacts of municipal solid waste dumps on soils and plants

2017 ◽  
Vol 33 (7) ◽  
pp. 589-606 ◽  
Author(s):  
Chukwudi Nwaogu ◽  
Henry D. Ogbuagu ◽  
Selegha Abrakasa ◽  
Modupeola A. Olawoyin ◽  
Vilém Pavlů
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Dumps

scholarly journals Evaluation of Water Chemistry in the Environs of Municipal Solid Waste Disposal Site, Jawaharnagar, Hyderabad, Telangana, India.

2021 ◽  
Author(s):  
A G S Reddy ◽  
P N Rao ◽  
G Ravi Kumar ◽  
G Raja Babu ◽  
K Maruti Prasad
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Disposal ◽  
Chemical Constituents ◽  
Solid Waste Disposal ◽  
Dumping Site ◽  
Waste Dumps ◽  
Groundwater Samples ◽  
The Impact ◽  
Surface And Groundwater

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.

scholarly journals Rockfall Hazard Rating System(s) in Saudi Arabia – A Review

2018 ◽  
Vol 10 (4) ◽  
pp. 1 ◽  
Author(s):  
Adnan M. Aqeel
Keyword(s):  
Saudi Arabia ◽  
Specific Area ◽  
Economic Loss ◽  
Slope Instability ◽  
Rating System ◽  
Rating Systems ◽  
Rockfall Hazard ◽  
Risk Definition ◽  
Hazard Rating ◽  
Hazard Rating Systems

Slope instability along highways in mountainous areas is not only a major hazard for lives and passing vehicles but also may hinder traffic for long period and thus create significant economic loss. The most common type of slope instability failures in such areas is rockfalls. Many qualitative rockfall hazard rating systems (RHRSs) have been developed across the world. However, the Middle East almost lacks to such systems. For instance, in Saudi Arabia, which has the largest economy in the region, only one system of rockfall hazard rating system (RHRS-SA) has been developed up to now. This paper aimed to critically review this system. Some drawbacks were found in the RHRS-SA. However, the main disadvantage was that the final rating score of risk is not consistent with risk definition. In sum, the remarkable findings of this review can be accounted either for any future modifications for the RHRS-SA or to develop a new rockfall hazard rating system but for a specific area(s) in Saudi Arabia.

scholarly journals Closure of municipal solid waste dumps. Site rating for odor impact

2018 ◽  
Vol 44 (2) ◽  
Author(s):  
Amit Kumar ◽  
Manoj Datta ◽  
Arvind K. Nema ◽  
R.K. Singh ◽  
B.R. Gurjar
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Dumps
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