A COMPARATIVE-EVALUATION OF DIFFERENT APPROACHES FOR ASSESSING SOIL ACIDIFICATION IMPACTS

Date

1993-01-01

Author

SOYUPAK, S
KILIC, B
MUKHALLALATI, L
YURTERI, C

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

186
views

0
downloads

Long-term impacts of acidic depositions on soils can be predicted with coupled applications of acid deposition models and approaches to assess soil acidification. Soil acidification assessment can be achieved by using the following approaches: (i) Mechanistic modelling (ii) Experimental acid buffering capacity (ABC) method (iii) Qualitative evaluations The mechanistic modelling approach adopted in this study utilises predicted acid deposition rates and soil properties as well as dominant soil mechanisms including utilisation, immobilization, nitrification, dissociation, association, carbonate weathering, silicate weathering, aluminium hydroxide disintegration, and cation exchange. The experimental ABC method, on the other hand, was based on titration curves obtained by adding different dilutions of H2SO4 to known quantities of soil samples. The sensitivities of the soil samples to acidification were also evaluated using a qualitative approach based on the pH and cation exchange capacity (CEC). A comparative evaluation of these approaches was made using the results of an environmental impact assessment (EIA) study conducted for a proposed coal-fired thermal power plant to be sited at Aliaga near Izmir, Turkey. In this context, the regional soils were first evaluated qualitatively. Then, the results of mechanistic and experimental approaches were compared in terms of the time required to reach certain critical pH levels. For the case of less sensitive calcareous soils, the mechanistic modelling approach yielded more conservative predictions. In the case of highly sensitive non-calcareous soils, however, the experimental ABC approach resulted in more conservative predictions.

Subject Keywords

Waste Management and Disposal, Water Science and Technology, Environmental Chemistry, General Medicine

URI

https://hdl.handle.net/11511/67704

Journal

ENVIRONMENTAL TECHNOLOGY

DOI

https://doi.org/10.1080/09593339309385264

Collections

Department of Environmental Engineering, Article

Suggestions

OpenMETU
Core

A comparison of physical properties of synthetic sludge with activated sludge Sanin, Faika Dilek (Wiley, 1999-03-01) Conducting physical and chemical tests with activated sludge is difficult because of its constantly changing properties. To overcome this difficulty a synthetic sludge that physically and chemically resembles activated sludge was created. In this study, the physical properties of synthetic sludge were examined and compared to those of activated sludge, including particle size, filterability by specific resistance to filtration and capillary suction time, conditioning with two polyelectrolytes, flee strength...
Control of trichloroethylene emissions from sparging systems by horizontal bio- and chemo-barriers Tezel, U; Demirer, Göksel Niyazi; Uludag-Demirer, S (Informa UK Limited, 2005-02-01) The scope of this study was to develop a continuous system to clean-up a trichloroethylene (TCE) contaminated gas stream, where biotic and abiotic removal mechanisms are undertaken sequentially simulating the horizontal bio- and chemo-barriers proposed for the in-situ remediation of the contaminated sites. The bio- and chemo-barriers were simulated by using glass columns packed with granular anaerobic mixed culture and Fe(0) filings, respectively. The effect of gas residence time, which is adjusted by the g...
A SCREENING MODEL FOR EFFECTS OF LAND-DISPOSED WASTES ON GROUNDWATER QUALITY Ünlü, Kahraman; PARKER, JC; STEVENS, D; CHONG, PK; KAMIL, I (Elsevier BV, 1992-10-01) This paper describes a screening model for evaluating the migration of organic and inorganic contaminants leached from land-disposed wastes. The model is composed of a waste-zone release submodel, an unsaturated-zone transport submodel and a saturated-zone transport submodel. The waste-zone submodel assumes steady one-dimensional vertical flow through a uniform waste zone treated as a "stirred tank reactor". Soluble inorganic contaminants are assumed to exhibit a constant concentration in the leachate until...
Comparison of methods for estimating carbonaceous BOD parameters Uludag-Demirer, S; Demirer, Göksel Niyazi; Bowers, AR (Informa UK Limited, 2001-08-01) The performance of seven different methods (Differential, Fujimoto, Thomas, Graphical, Integral, Log-Difference, and Nonlinear Regression) for estimating first-stage, carbonaceous biochemical oxygen demand (CBOD), curve parameters, namely k and L-0 were compared using synthetic data generated by Monte Carlo simulation technique. The comparison of the methods was made based on their efficiency in retrieving the original values of k and L-0 which were selected to generate the synthetic data. In the first part...
A new screening index for pesticides leachability to groundwater DEMİR, A. Ece Akay; Dilek, Filiz Bengü; Yetiş, Ülkü (Elsevier BV, 2019-02-01) Given the fact that pesticides exist in the aquatic environment at very low concentrations, it is clear that their analysis require expensive analytical techniques. Water authorities in Turkey are in need of assessing the likelihood of pesticide occurrence in groundwater in order to identify minimum number of pesticides that would be included in monitoring programs. To this purpose, the pesticides used in Turkey are ranked and those having higher leaching potentials are identified using pesticide screening ...

Citation Formats

S. SOYUPAK, B. KILIC, L. MUKHALLALATI, and C. YURTERI, “A COMPARATIVE-EVALUATION OF DIFFERENT APPROACHES FOR ASSESSING SOIL ACIDIFICATION IMPACTS,” ENVIRONMENTAL TECHNOLOGY, pp. 59–70, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/67704.