Geophysical modelling and mapping of contaminated groundwater around three waste disposal sites in southern Ontario

1986 ◽  
Vol 23 (3) ◽  
pp. 372-384 ◽  
Author(s):  
John P. Greenhouse ◽  
David D. Slaine
Keyword(s):  
Groundwater Contamination ◽  
Waste Disposal ◽  
Geophysical Methods ◽  
Cost Effective ◽  
Independent Method ◽  
General Distribution ◽  
Contaminated Groundwater ◽  
Southern Ontario ◽  
Sampling Program ◽  
Lateral Variations

We present an approach to the use of electomagnetic geophysical methods for delineating groundwater contamination, and test the concepts at three waste disposal sites. The approach includes a technique for modelling a site's response to a variety of instruments, and a device-independent method of contouring the data. The modelling attempts to account for the noise inherent in the measurement process, particularly the effects of lateral variations in stratigraphy. These concepts are evaluated by comparing the geophysical response to groundwater conductivities measured in sampling wells. We conclude that geophysics offers a cost-effective supplement to drilling, and that it is best used in a reconnaissance mode to map the general distribution of contamination prior to a detailed sampling program. The correlation between the observed and predicted geophysical response as a function of groundwater conductivity is as good as can be expected given the uncertainties in the process. The methodology proposed is simple to use and practical. Key words: groundwater, contamination, geophysics, electromagnetic, mapping, modelling.

Assessment of the State of the Territories of Closed Waste Disposal Facilities by Vegetation Indices

2021 ◽  
Vol 25 (9) ◽  
pp. 30-37
Author(s):  
N.N. Sliusar ◽  
A.P. Belousova ◽  
G.M. Batrakova ◽  
R.D. Garifzyanov ◽  
M. Huber-Humer ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Waste Disposal ◽  
Vegetation Cover ◽  
Vegetation Index ◽  
Vegetation Indices ◽  
Cost Effective ◽  
Google Earth ◽  
The State ◽  
Landsat 8 ◽  
The Earth

The possibilities of using remote sensing of the Earth data to assess the formation of phytocenoses at reclaimed dumps and landfills are presented. The objects of study are landfills and dumps in the Perm Territory, which differed from each other in the types and timing of reclamation work. The state of the vegetation cover on the reclaimed and self-overgrowing objects was compared with the reference plots with naturally formed herbage of zonal meadow vegetation. The process of reclamation of the territory of closed landfills was assessed by the presence and homogeneity of the vegetation layer and by the values of the vegetation index NDVI. To identify the dynamics of changes in the vegetation cover, we used multi-temporal satellite images from the open resources of Google Earth and images in the visible and infrared ranges of the Landsat-5/TM and Landsat-8/OLI satellites. It is shown that the data of remote sensing of the Earth, in particular the analysis of vegetation indices, can be used to assess the dynamics of overgrowing of territories of reclaimed waste disposal facilities, as well as an additional and cost-effective method for monitoring the restoration of previously disturbed territories.

Pilot-Scale Performance of Iron and Arsenic Removal from Contaminated Groundwater

2005 ◽  
Vol 40 (1) ◽  
pp. 82-90 ◽  
Author(s):  
Biswaranjan Manna ◽  
Uday Chand Ghosh
Keyword(s):  
Arsenic Removal ◽  
Cost Effective ◽  
Pilot Scale ◽  
Cost Evaluation ◽  
Contaminated Groundwater ◽  
Arsenic Content ◽  
Hand Pump ◽  
Excess Iron ◽  
Tube Wells ◽  
Performance Results

Abstract Pilot-scale performance in reducing excess iron and arsenic from contaminated groundwater has been systematically reported. Here, a double column unit, the first packed with β-MnO2 and the second with crystalline FeOOH (goethite variety), with filters attached to the outlet of hand-pump tube-wells has been used in the field. Results showed that the filters generate 10,000 to 15,000 BV and 19,000 to 35,000 BV water with iron ≤ 0.3 mg/L and arsenic ≤10 µg/L from groundwater having influent iron and arsenic levels of 3.75 to 7.25 mg/L and 70 to 220 µg/L, respectively. The downflow rate of effluent water was 237.6 to 305.5 L/m2-min. The performance results were achieved with a single charging of the iron and arsenic removal media. Toxicity characteristic leaching procedure (TCLP) tests of the waste (arsenic content: 2.4 g/kg) showed that it is not hazardous to the environment and does not pose any risk to users. Cost evaluation showed $US0.50 to 0.70 per 1000 gallons of treated water and, hence, the technology is cost-effective for countries such as India and Bangladesh.

scholarly journals Use of a Novel Biopellet to Treat Total Petroleum Hydrocarbon Contaminated Groundwater

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2512
Author(s):  
Dun-Sheng Yang ◽  
Shyi-Tien Chen
Keyword(s):  
Groundwater Contamination ◽  
Petroleum Hydrocarbon ◽  
Removal Rate ◽  
Total Petroleum Hydrocarbon ◽  
Contaminated Groundwater ◽  
Microbial Count ◽  
Treatment Results ◽  
Fruit Peel ◽  
Pump And Treat ◽  
Microbial Consumption

Conventional pump-and-treat strategies for dealing with groundwater contamination are both energy- and time-consuming. Potential passive biological techniques are of interest to remedy the massive volume of total petroleum hydrocarbon (TPH)-contaminated groundwater worldwide. In this study, novel biopellets made of TPH-acclimated microbes, fermented fruit peel materials, and CaO2 recycled from eggshells were manufactured to treat TPH-contaminated groundwater. The biopellets provided 56 mg of oxygen and achieved a C:N:P ratio by weight of 10:4:1. Moreover, each biopellet was capped with alginate to prolong its floating time in water to 25 days. The mimicked groundwater spiked with 500 mg/L diesel TPHs (TPHd) was treated using our novelly manufactured biopellets. After 8 days of treatment, results showed a 98.8% removal of spiked TPHd at a rate of 64.1 mg/L per day, with a microbial count that increased from nearly zero to 1.0 × 107 CFU/mL. The residual TPHd constituents were mainly C13–C18. Furthermore, microbial consumption of N, P, and oxygen was noted during the 8-day period of TPHd removal. As the TPHd level increased to 1500 mg/L, the removal rate reached 45 mg/L per day, and all TPHd had been removed after 22 days.

Architectural Solution to Economic and Environmental Challenges: The Generic Plastic Villa

2017 ◽  
Vol 4 (11) ◽  
pp. 76-84
Author(s):  
Oluwole Alagbe
Keyword(s):  
Sustainable Development ◽  
Construction Industry ◽  
Waste Disposal ◽  
Construction Material ◽  
Cost Effective ◽  
Solid Waste Disposal ◽  
Initial Formation ◽  
Waste Plastic ◽  
Pet Bottles ◽  
Plastic Bottle

This paper proposes the use of waste plastic polyethylene terephthalate (PET) bottles as a construction entity instead of standardised bricks. Waste plastic bottles are a major cause of solid waste disposal. Today, the construction industry is in need of finding cost-effective materials for increasing the strengths of structures. The benefits of the use of PET bottles are improved ductility in comparison with raw blocks and inhibition of crack propagation after its initial formation. One of the main disadvantages in construction of houses is the high cost involved. Plastic bottle is considered as an urban junk with sustainability characteristics that can be used for construction of buildings. This paper investigates the application of plastic bottles for sustainable development. The solution offered in this paper is one of the answers to the long-standing menace of unemployment, waste disposal and poor conditions of living. Keywords: Plastic bottle, sustainable material, sustainable development, urban wastage, construction material.

scholarly journals Rhizofiltration for Removal of Inorganic and Organic Pollutants in Groundwater: a Review

2021 ◽  
Vol 11 (4) ◽  
pp. 12326-12347
Keyword(s):  
Heavy Metals ◽  
Groundwater Contamination ◽  
Human Life ◽  
Organic Pollutant ◽  
Cost Effective ◽  
Health Issues ◽  
Low Concentrations ◽  
Water Recharge ◽  
By Products

Groundwater serves as the water recharge of surface water and provides clean water for domestic, industrial, and agricultural usage for human life. However, rapid developments resulted in groundwater contamination by heavy metals, pesticides, waste by-products, cosmetics, pharmaceutics, and biological agents. Groundwater contamination by the percolation of heavy metals (HM) is focused on in this review. Heavy metals known for their persistence, bioaccumulation, and biomagnification properties are hazardous to live organisms. Long-term exposure to heavy metals brings adverse effects on respiratory diseases, cardiovascular disorders, cancer, etc. They are considered toxins, carcinogens, mutagens, and teratogens for humans in low concentrations. Hence, technologies to remediate heavy metals and organic pollutant in groundwater is vital to prevent environmental and health issues. However, current conventional remediation technologies that are expensive, utilize hazardous materials, and produce toxic by-products in effluents are insufficient to alleviate heavy metals' effects in groundwater. Thus, an eco-friendly and cost-effective rhizofiltration method that adsorb, concentrate, and precipitate contaminants in or on plants' rhizosphere is introduced. This review portrays the mechanisms involved in rhizofiltration to remediate heavy metals-contaminated groundwater and describes the gaps for rhizofiltration to be a commercially viable technology.

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