A Waste Treatment/Disposal Site Evaluation Process for Areas Underlain by Carbonate Aquifers

1986 ◽  
Vol 6 (2) ◽  
pp. 117-121 ◽  
Author(s):  
J.A. Magner ◽  
P.R. Book ◽  
E.C. Alexander
Author(s):  
A. J. Cooper

AbstractThick and predictable deposits of fine grained Quaternary materials have been used for the siting of waste management facilities in Ontario. The search for such sites is founded on the application of techniques in Quaternary geology and hydrogeology. Two examples are presented. Oxford County is located southwest of Toronto in an area of parallel morainic ridges separated by flat till plains. Conventional wisdom would focus on the till plains for thick, consistent fine grained Quaternary Sediments. However, the careful analysis of the Quaternary stratigraphy and glacial history revealed that better sites are located along the moraines. A site on the Ingersoll Moraine was studied in detail and defended at a public hearing. Concerns about the geology of the materials were allayed by the confirmation of homogeneous clayey silt materials exposed when the site opened in late 1986. A much wider ranging search was undertaken for a major hazardous and liquid industrial waste treatment and disposal facility for the Province of Ontario. Progressively more detailed investigations of the Quaternary geology were used to assist a multi-disciplinary site selection team. Initial interpretations covered an area of 75 000 km2 at a scale of 1:250 000. Eight candidate sites were then selected for further investigation with five continuously sampled stratigraphic boreholes. The chosen site is located in a depression in the bedrock filled with 40 m of glaciolacustrine clayey silt. Site specific hydrogeological and geotechnical studies were integrated with a detailed geological investigation.


2020 ◽  
Vol 4 (2) ◽  
pp. 103-111
Author(s):  
Rahmat Hidayat ◽  
◽  
Ade Irmayanti ◽  
Muhammad Tommy ◽  
◽  
...  

Determining the final waste disposal site is a complex problem for Lamandau Regency, which is a developing district, the more people there are every year, the more waste is produced. However, determining the location is still done subjectively without considering the influencing factors and is still manual. In problems like this, the decision support system can be used as a solution to help make decisions. This study aims to implement a decision support system in determining the final disposal site using the Multi-Factor Evaluation Process (MFEP) method which is applied in the form of a Web Application using a prototype model. In determining the final disposal site, there are 5 criteria to be assessed, namely: Cover Land with an initial weight of 0.2, Rain Intensity with an initial weight of 0.1, Nature Reserve with an initial weight of 0.2, Agriculture with an initial weight of 0.3 and Entrance roads with an initial weight of 0.2, and the number of alternatives consists of 5 locations. The findings show that the error rate of this system is below 5%. After testing all modules or system components, all of them were successful and feasible to be used as a tool in determining the final place of development.


Author(s):  
Thai Thi Thanh Minh ◽  
Nguyen Trung Anh ◽  
Joo Young Lee ◽  
Bach Quang Dung

The study focuses on assessing the potential and economic efficiency of reducing greenhouse gas (GHG) emissions from organic solid waste treatment technologies, including: Non-recovery landfill, landfill and gas recovery for power generation (applied in Nam Son disposal site) and composting (applied in Cau Dien disposal site) in Hanoi. Research results illustrate that, the treatment of 1 ton of organic domestic waste by landfill without gas recovery and landfill with gas recovery need to cover losses about $14.2 USD and $0.9 USD, respectively. While application of composting technology makes a profit about $5.1 USD. Composting had the potential to significantly reduce GHG emissions and used the product after the treatment in commerce to have capital for reinvestment but it was also planned by Hanoi People’s Committee for waste treatment in the future. However, the roadmap for converting to composting technology should be implemented from 2030.


1993 ◽  
Vol 28 (8-9) ◽  
pp. 273-281 ◽  
Author(s):  
P. G. Kullberg ◽  
T. J. Fredette

Capping of contaminated sediments with cleaner sediments is a technique that has been used by the US Army Corps of Engineers, New England Division (NED) since 1979, to avoid or minimize the impacts of contaminated sediments disposed at open water sites. A case study of contaminated sediments from a project on the Thames River, capped at a disposal site offshore of New London, Connecticut, illustrates the application of this technique. Several steps, both regulatory and operational, must be accomplished to ensure proper employment of this technique. First, once it is determined through the permit evaluation process that material to be dredged from a project is not suitable for unconfined open water disposal, the quantity of uncontaminated dredged material needed to achieve a desired cap thickness of 50 to 100 cm must be identified. This quantity may be determined by the use of a computer model - the DAMOS (Disposal Area Monitoring System) Capping Model - which simulates the disposal events and mound formation. Next, the applicant/project proponent must submit a capping plan to NED, which includes provisions for obtaining the necessary quantity of cap material and a schedule for dredging and disposal of both contaminated and cap materials. Upon approval of this plan by NED, the contaminated material may be dredged and disposed at a taut-wire moored buoy located at a specified set of coordinates. The use of such a buoy is critical to the success of capping, since it aids in limiting the distribution of the contaminated material on the seafloor. Post-disposal bathymetric and sediment-profile camera surveys of the contaminated material are conducted to delineate the areal extent of the mound formed during disposal. Several sets of coordinates are then chosen by NED for disposal of the cap material, with the aim of covering all contaminated sediments. The operational success of the capping technique is measured by adequate areal coverage and thickness of the cap over the contaminated material. Thus, following disposal (and sometimes during disposal) of cap material, additional surveys are conducted for this purpose.


2020 ◽  
Vol 16 (1) ◽  
pp. 85
Author(s):  
Mochammad Chaerul ◽  
Dhia Atikah Aliyyu

Law No. 18 of 2008 on Waste Management prioritizes waste handling nearer the generator by considering economical value remained. In Depok City, waste handling at the community level has been performed at the Waste Treatment Unit (WTU) and waste bank. WTU focuses on organic waste treatment, while waste bank for inorganic waste recycling. The paper aims to identify waste generation and to evaluate the operational activity of the facilities. The sampling procedure proceeded for 8 days consecutively for 14 WTUs and 1 day for 7 waste banks applying stratified random sampling from a total of 30 WTUs and 428 waste banks operated in Depok City. Waste received daily were varied between 95,32-1.436,98 kg of organic waste at each WTU and 69,65-868,40 kg of inorganic waste at each waste bank. The variation of waste received was proportional to the number of inhabitants served and the character of the community surrounding the facility. The performance of the facilities could be improved including through promotion and financial support attained from the retribution. Waste handling at the community level could reduce the amount of waste transported to the Final Disposal Site (FDS) and reduce land required for FDS which becomes difficult to find especially in big cities in Indonesia.


2021 ◽  
Vol 2048 (1) ◽  
pp. 012042
Author(s):  
Yarianto S Budi Susilo

Abstract In 2013, a pre-project activity of Experimental Power Reactor (RDE Project) was started. The reactor type is a High Temperature Gas-cooled Reactor (HTGR) with a 10 MWth capacity. At present the project has been postponed due to some reason, however, there was an important stage that has been achieved, regarding the site evaluation process to obtain site permits from the Regulatory Body (BAPETEN). Site evaluation is an critical activity that will guarantee the safety of nuclear facilities from natural and human induced external events as well as the safety of population and the environment due to nuclear facility accidents. Site evaluation for the RDE project has the same process as a large NPP project, considering that at the time of the site evaluation process there were no specific regulations that considered a graded approach for a mini-scale NPP. The site evaluation process includes two stages, namely 1). Site Evaluation Program (SEP) and Management System of Site Evaluation (MSSE) Approval and 2) Site Evaluation Approval. SEP is intended to establish the scope and criteria for site evaluation safety. Whereas the Site Evaluation Management System is a managerial instrument that makes site safety as the top priority in each activity and process of RDE site evaluation. BATAN as the project owner delivered the SEP document and MSSE to BAPETEN on March 10, 2014. These documents was intensively discussed by BAPETEN and BATAN to determine agreement on the scope of site evaluation, criteria and management aspects based on site safety considerations. The technical aspects that must be evaluated are seismicity, volcanic hazard, geotechnical and foundation, meteorology, hydrology, human induced events, dispersion and population distribution. This document was approved by BAPETEN on March 2, 2015. Considering the very wide scope with various fields of competence and need supporting data for evaluation, this can not be done only by BATAN experts, it must collaborate with various institution that have competence related to the site aspect. The experts that involved in the site evaluation come from Meteorology and Geophysics Agency (BMKG) for seismic and meteorological aspects, Geospatial Information Agency (BIG) to support geospatial data and ground movements/deformation, Geological Survey Center (PSG) to support geological data and geological structures, Center for Volcanology and Geological Disaster Mitigation (PVMBG) to support volcanic catalog data and volcanic hazard, University to support geotechnical, foundation and hydrology evaluation. BATAN experts from various Centers involved for evaluating topography, human induced events, dispersion, dose assessment, population distribution, emergency preparedness, and technology aspects. Data acquisition activities such as geophysics, drilling, geological mapping, volcanic mapping, hydrology, satellite imagery and digitizing processes are contracted through third parties with guidance developed by the BATAN Expert Team. Considering the very limited time and financial resources availability, in order to achieve the effectiveness of all activities, a special organization was formed to control site evaluation with the BATAN Chairman as Top Management. The Site evaluation document was submitted in two stages. The first stage is administrative completeness and it was declared administratively complete on November 15, 2015. The second step is BAPETEN assessed and evaluated the technical documents submitted to determine the acceptability of the site. The process of evaluating the site evaluation document lasts quite a long and intensive. Finally, the site permit was issued on January 23, 2017. The valuable lessons during the site evaluation project are: 1) It require the same understanding and perception between applicant and regulator regarding the site licensing process; 2) The establishment and implementation of an effective organization; 3) controlling the project schedule.


Author(s):  
Ni Putu Manacika Manupada ◽  
Ahyar Ismail ◽  
Meti Ekayani

Babakan is one of administrative villages in Bogor Regency where Institut Pertanian Bogor (IPB) is located. IPB has given social and economic impacts in Babakan that many small-scalled business developed and small-scalled restaurant has the most participators. These small-scale restaurants generate waste everyday and the waste is still managed with end of pipe practice where waste was hauled from collection point to disposal site without any intermediate treatment. Community based waste management with 3R (reduce, reuse, recycle) approach should be proposed to reduce waste at source. 3R Solid Waste Treatment Facilities (TPS 3R) is a facility that focused on reducing, reusing, and recycling waste at source comunally involved active roles from community and goverment. The objectives of this study are (1) Examining level of participation of small-scale restaurant owners if TPS 3R is built and implemented in Babakan. (2) Estimating Willingness to Pay (WTP) of small-scale restaurans owners to TPS 3R implementation planning. The results showed most of small-scale restaurant owners are willing to participate in both sorting waste at source and paying TPS 3R service if TPS 3R is being implemented in Babakan. Average WTP values for TPS 3R is Rp 32,037.04/month and it’s higher than existing rate of waste collection service, which shows small-scale restaurant owners have preference for TPS 3R. Keywords: small-scaled restaurants; TPS 3R; waste management; willingness to pay


Author(s):  
A. Papafotiou ◽  
R. Senger ◽  
A. Alcolea ◽  
G. W. Lanyon ◽  
J. Ewing

Different low-permeability formations are considered as potential host rocks for Low / Intermediate Level waste (L/ILW) and spent fuel / high-level / long-lived intermediate-level waste (SF/HLW/ILW) in Switzerland. As part of a generic site evaluation process, emphasis is on the assessment of Mesozoic limestones, marls and claystones in six potential siting areas in Northern and Central Switzerland. An important aspect in the site evaluation process is the characterization of the low-permeability formations in terms of spatial variability of the relevant transport properties (porosity, permeability, clay content), as they may affect the migration of waste-generated gas from L/ILW and SF/HLW/ILW repositories. Numerical modeling studies are presented, aimed at quantifying the impact of spatial variability of rock properties on gas release through the host rock on a deca- to hectometer scale. For this purpose, 2D models of an emplacement tunnel embedded in a low-permeability host rock are developed for both a sequence of limestones and marls with distinct lithological variability (Effingen Beds) and a claystone of moderate spatial variability (Opalinus Clay). For the Effingen Beds, a composite geological model is implemented, comprising stochastic representations of the different facies and the fracture systems. The facies model displays spatial variations in clay content, porosity and permeability within the different facies. The fracture model accounts for the hydraulic effects associated with the faults and fracture systems in the siting area under consideration. For the Opalinus Clay the available geostatistical information (experimental variograms of clay content, porosity, hydraulic conductivity) is used to generate a stochastic facies model based on a log-normal permeability distribution. A separate fracture network model is not established for the Opalinus Clay. A generic gas source-term is assigned to the emplacement tunnel and hydrostatic pressures are initially assumed for the host-rock domain. The comparison of the simulations with different permeability realizations indicates that the heterogeneity of the host rock introduces strong differences in the propagation of the gas pressure perturbation, resulting in significant variations in the lateral propagation of the gas front in the host rock and the gas pressure build-up in the emplacement tunnels. Despite these differences, the calculated peak pressures in the disposal cavern and gas breakthrough along the upper model boundary are similar for multiple realizations, which compare well with the simulated results for a homogeneous model with equivalent averaged properties.


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