Subsurface Soil and Water Pollution by Diesel Fuel at Boždarevac Railway Station Near Belgrade and Remedial Measures

1991 ◽  
Vol 24 (11) ◽  
pp. 205-209
Author(s):  
Slobodan Vujasinovic ◽  
Docent Ivan Matic
Keyword(s):  
Water Pollution ◽  
Ground Water ◽  
Diesel Fuel ◽  
Specific Effect ◽  
Remedial Measures ◽  
Railway Station ◽  
First Order ◽  
Wide Range ◽  
Subsurface Soil ◽  
Soil And Water

An excessive pollution of ground water and the hydrogeologic environment by naphtha and its derivatives spilled on the surface has been recorded in Yugoslavia. The similar accidents in Serbia (Obrenovac, Užička Požega, Beograd -Makiš, Beograd-Danube railway station, Leskovac, Boždarevac, etc.) have increased in number in the last several years. Transportation of naphtha and its derivatives, either by road or river, from the refineries to the consumers is obviously contributing much to the environmental pollution hazard. For the wide range of use and the specific effect on ground water, this pollutant can be taken for one of the first order. This paper discussir a case example.

scholarly journals Deterioration of Ground Water Quality in Eloor –Edayar Industrial Belt

2019 ◽  
Vol 8 (2S11) ◽  
pp. 2289-2292
Keyword(s):  
Water Pollution ◽  
Ground Water ◽  
Water Contamination ◽  
Industrial Effluents ◽  
High Rate ◽  
Remedial Measures ◽  
Industrial Zone ◽  
Ground Water Quality ◽  
Ground Water Contamination ◽  
Ground Water Pollution

Ground water contamination has become a serious problem due to rapid growth of population, industrialization and high rate of Urbanization. Untreated or partially treated industrial effluents discharged in to water bodies or ponds and sludge heaps causes severe ground water pollution in industrial belts. In the present investigation an attempt has been made to study the extent of ground water pollution in an area of 500 m around the Eloor-Edayar Industrial belt. Results revealed that the ground water near to the Industrial zone is already polluted and possible remedial measures are suggested.

scholarly journals Influence De L’exploitation Artisanale Du Sable Sur La Santé Et La Sécurité Des Artisans Et L’environnement: Cas De La Carrière De Nkol’Ossananga, Région Du Centre Cameroun

2018 ◽  
Vol 14 (15) ◽  
pp. 246
Author(s):  
Clautaire Mwebi Ekengoue ◽  
Rodrigue Fotie Lele ◽  
Armand Kagou Dongmo
Keyword(s):  
Water Pollution ◽  
Data Analysis ◽  
Bacterial Infections ◽  
Health And Safety ◽  
Protective Equipment ◽  
Waste Oil ◽  
High Demand ◽  
Wide Range ◽  
The World ◽  
Soil And Water

Sand is classified among the low value development minerals, even though it is massively used in the world. The exploitation of that construction mineral at Nkol’Ossananga, around Yaounde, is done by craftsmen in unsafe conditions, such as: the exposure to a wide range of diseases and the destruction of the environment. We carried out a study on occupational health and safety and environmental impacts on the Nkol’ossananga site. Our method consisted firstly of the bibliographic review, sandpit quarry investigations afterwards, and lastly the data analysis. Tabulation of results showed that the population in the site is essentially threatened by diseases such as dysentery (15%), fibromyalgia (25%), typhoid fever (55%), otalgia (10%), ocular pains (15%), and malaria (45%). Craftmen work without any personal protective equipment (PPE) and are often victims of drowning and bacterial infections. The high demand of sand in Yaoundé involves the development of the activity in other sites and, in consequence, there is a deforestation and disappearance of many animals and vegetables species. The soil and water pollution is also noticeable due to pouring of engines waste oil in the site.

scholarly journals Diffuse Water Pollution from Agriculture: A Review of Nature-Based Solutions for Nitrogen Removal and Recovery

Water ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 1893
Author(s):  
Giuseppe Mancuso ◽  
Grazia Federica Bencresciuto ◽  
Stevo Lavrnić ◽  
Attilio Toscano
Keyword(s):  
Water Pollution ◽  
Nitrogen Removal ◽  
Plant Uptake ◽  
Environmental Issues ◽  
Polluted Water ◽  
Health Issues ◽  
Agricultural Wastewater ◽  
Research Activities ◽  
Wide Range ◽  
Different Types

The implementation of nature-based solutions (NBSs) can be a suitable and sustainable approach to coping with environmental issues related to diffuse water pollution from agriculture. NBSs exploit natural mitigation processes that can promote the removal of different contaminants from agricultural wastewater, and they can also enable the recovery of otherwise lost resources (i.e., nutrients). Among these, nitrogen impacts different ecosystems, resulting in serious environmental and human health issues. Recent research activities have investigated the capability of NBS to remove nitrogen from polluted water. However, the regulating mechanisms for nitrogen removal can be complex, since a wide range of decontamination pathways, such as plant uptake, microbial degradation, substrate adsorption and filtration, precipitation, sedimentation, and volatilization, can be involved. Investigating these processes is beneficial for the enhancement of the performance of NBSs. The present study provides a comprehensive review of factors that can influence nitrogen removal in different types of NBSs, and the possible strategies for nitrogen recovery that have been reported in the literature.

Urban Ground-Water Pollution: A Case Study from Coventry, United Kingdom

Ground Water ◽  
1993 ◽  
Vol 31 (3) ◽  
pp. 417-424 ◽  
Author(s):  
M. M. Nazari ◽  
M. W. Burston ◽  
P. K. Bishop ◽  
D. N. Lerner
Keyword(s):  
Water Pollution ◽  
United Kingdom ◽  
Ground Water ◽  
Ground Water Pollution

Critical examination of various approaches used for analysing helical cables

1994 ◽  
Vol 29 (1) ◽  
pp. 43-55 ◽  
Author(s):  
M Raoof ◽  
I Kraincanic
Keyword(s):  
Large Diameter ◽  
Numerical Results ◽  
Hertzian Contact ◽  
Critical Examination ◽  
First Order ◽  
Wide Range ◽  
End Conditions ◽  
Parametric Studies ◽  
The Individual ◽  
Fixed End

Using theoretical parametric studies covering a wide range of cable (and wire) diameters and lay angles, the range of validity of various approaches used for analysing helical cables are critically examined. Numerical results strongly suggest that for multi-layered steel strands with small wire/cable diameter ratios, the bending and torsional stiffnesses of the individual wires may safely be ignored when calculating the 2 × 2 matrix for strand axial/torsional stiffnesses. However, such bending and torsional wire stiffnesses are shown to be first order parameters in analysing the overall axial and torsional stiffnesses of, say, seven wire stands, especially under free-fixed end conditions with respect to torsional movements. Interwire contact deformations are shown to be of great importance in evaluating the axial and torsional stiffnesses of large diameter multi-layered steel strands. Their importance diminishes as the number of wires associated with smaller diameter cables decreases. Using a modified version of a previously reported theoretical model for analysing multilayered instrumentation cables, the importance of allowing for the influence of contact deformations in compliant layers on cable overall characteristics such as axial or torsional stiffnesses is demonstrated by theoretical numerical results. In particular, non-Hertzian contact formulations are used to obtain the interlayer compliances in instrumentation cables in preference to a previously reported model employing Hertzian theory with its associated limitations.

OPTIMIZATION OF GAS-DIESEL ENGINE REGULATION AS A METHOD OF IMPROVING ITS ECOLOGICAL CHARACTERISTICS

2021 ◽  
pp. 28-32
Author(s):  
VALERIY L. CHUMAKOV ◽  
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Nitrogen Oxides ◽  
Diesel Fuel ◽  
Hydrocarbon Fuel ◽  
Load Range ◽  
Engine Operation ◽  
Exhaust Gases ◽  
Wide Range ◽  
Diesel Cycle

The paper shows some ways to improve the environmental characteristics of a diesel engine using gaseous hydrocarbon fuel and operating the engine in a gas-diesel cycle mode. Some possibilities to reduce toxic components of exhaust gases in a gas-diesel engine operating on liquefi ed propane-butane mixtures have been studied. Experiments carried out in a wide range of load from 10 to 100% and speed from 1400 to 2000 rpm showed that the gas-diesel engine provides a suffi ciently high level of diesel fuel replacement with gas hydrocarbon fuel. The authors indicate some eff ective ways to reduce the toxicity of exhaust gases. The engine power should be adjusted by the simultaneous supply of fuel, gas and throttling the air charge in the intake manifold. This method enriches the fi rst combusting portions to reduce nitrogen oxides and maintains the depletion of the main charge within the fl ammability limits of the gas-air charge to reduce carbon monoxide and hydrocarbons. The authors found that when the engine operates in a gas-diesel cycle mode, the power change provides a decrease in nitrogen oxide emissions of gas-diesel fuel only due to gas supply in almost the entire load range as compared to the pure diesel. At high loads (more than 80%) stable engine operation is ensured up to 90% of diesel fuel replaced by gas. Even at 10% of diesel fuel used the concentration of nitrogen oxides decreases by at least 15…20% as compared with a diesel engine in the entire load range. However, there is an increased emission of hydrocarbons and carbon monoxide in the exhaust gases. Further experimental studies have shown that optimization of the gas diesel regulation can reduce the mass emission of nitrogen oxides contained in exhaust gases in 2…3 times and greatly reduce the emission of incomplete combustion products – carbon monoxide and hydrocarbons.

Observations on some basal failures in sheeted excavations

1970 ◽  
Vol 7 (2) ◽  
pp. 136-144 ◽  
Author(s):  
V. Milligan ◽  
K. Y. Lo
Keyword(s):  
Shear Strength ◽  
Ground Water ◽  
Groundwater Level ◽  
Soil Conditions ◽  
Remedial Measures ◽  
Factors Influencing ◽  
Water Head ◽  
The Stability ◽  
Made In

In excavations below groundwater level, instability of the base may result from the inflow of water into the excavation. The most important factors influencing the stability are the ground water and detailed soil conditions at the site.Construction problems encountered in excavations in clay strata, underlain by pervious water bearing layers, are described. The remedial measures adopted in each case are also discussed. From a study of the observations made in the case records, it is suggested that excavation in intact clays may be carried out to depths exceeding that limited by the ratio of t/h = 0.5, where t is the distance from the bottom of the excavation to the top of the water bearing stratum, and h is the water head at the top of the water bearing stratum, provided that the clay is not disturbed during construction so that the shear strength of the clay is preserved.

Sign in / Sign up

Export Citation Format

Share Document