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Omar S. Abu-Rizaiza Rahman Hammadur 《Journal of the American Water Resources Association》1998,34(4):855-863
ABSTRACT: Extensive use is made of on-site wastewater disposal systems of cesspools due to the absence of a sanitary sewerage system in Saudi urban areas. This system has caused the groundwater table to rise to a public nuisance level. A health risk has also evolved. There are several infrastructural, environmental, and social impacts from this, resulting in great financial losses. Examples are: surface water flooding, damage to foundations of buildings and asphalt street pavements, flooded basements and added construction costs required for excavation, dewatering, insulation materials, and special cements. Most of these costs are indirectly being paid by the private and public sectors. This study compares the estimated costs of damage and losses with the estimated costs of building, operating, and maintaining sanitary sewerage systems in the cesspool-served areas. The annual cost of the cesspool system, depending on the severity of the adverse impacts, ranges from 2.2 to 4.4 times the annual cost of the sanitary sewerage system. Remedies for these impacts are very expensive, and delays in the implementation of the sanitary sewerage facility will make the damage recovery more expensive, and in some cases, impossible. Thus, it is recommended that highest priority to be given to the sanitary sewerage systems in Saudi urban areas. 相似文献
64.
Tuihedur Rahman H.M. Hickey Gordon M. Ford James D. Egan Malcolm A. 《Regional Environmental Change》2018,18(5):1535-1553
Regional Environmental Change - In this paper, we present the results of a systematic literature review of climate change vulnerability-related research conducted in Bangladesh between 1994 and... 相似文献
65.
El Sebaey Aya Farag Atlam Samir Abd El Mageed El Kafas El Sayed Abd El Rahman Zayed Hanaa Abdelaziz 《Environmental science and pollution research international》2022,29(10):14371-14379
Environmental Science and Pollution Research - Health care-associated infections are reported among the top causes of hospital deaths worldwide. Their prevention is a first priority for patient... 相似文献
66.
Phulpoto Anwar Hussain Qazi Muneer Ahmed Haq Ihsan Ul Phul Abdul Rahman Ahmed Safia Kanhar Nisar Ahmed 《Environmental science and pollution research international》2018,25(17):16578-16578
Environmental Science and Pollution Research - The original publication of this paper contains a mistake. 相似文献
67.
Rahman MM Rahman MM Koddus A Ahmad GU Voigt G 《Journal of environmental radioactivity》2005,83(2):199-211
Soil-to-plant transfer factors (TF) of radiocaesium (137Cs) were determined under field condition for grassy vegetation grown in Bangladesh at contaminated land in the Atomic Energy Research Establishment (AERE) campus. TF values for rice, grass and grassy/root vegetations grown in the same type of soil were also measured under pot condition. TF values of 137Cs for grassy vegetation (2.4 x 10(-2) -4.2 x 10(-2) with an average of 3.1 x 10(-2) +/-0.005) obtained under field condition were slightly lower than the values for grass and grassy/root vegetations (2.9 x 10(-2) -6.6 x 10(-2) with an average of 4.8 x 10(-2) +/-0.01 for grass and grassy vegetations and 2.3 x 10(-2) -5.6 x 10(-2) with an average of 4.0 x 10(-2) +/-0.009 for root vegetations, respectively) obtained under pot condition. However, TF values (9.0 x 10(-3) -2.6 x 10(-2) with an average of 1.9 x 10(-2) +/-0.004) obtained for rice were about a factor of 4 lower than the values obtained for grass and grassy/root vegetations. When the properties of the AERE soils as input parameters were used in the soil-plant transfer model of Absalom, the estimated TF values (4.5 x 10(-2) -6.7 x 10(-2) with an average of 5.3 x 10(-2) +/-0.006) were consistent with the measured values obtained for grass and grassy vegetations under pot condition, however, the model overestimates the TF values for rice. 相似文献
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Kheng Soo Tay Noorsaadah Abd Rahman Mhd Radzi Bin Abas 《Environmental Chemistry Letters》2011,9(4):539-546
Contamination of wastewater by organic pollutants is a major worldwide issue. For instance plastic additives such as phthalates
are found in wastewater. Efficient techniques are thus needed to clean wastewaters. The Fenton reaction involving H2O2 and Fe(II) salts can be used to treat polluted water. During the Fenton reaction pollutants are decomposed directly by hydroxyl
radicals. In some cases toxic by-products are produced. Here dimethyl phthalate, diethyl phthalate, and dipropyl phthalate
by-products formed during the Fenton reaction were studied. Fenton degradation of selected phthalates yielded numerous transformation
products such as hydroxylated phthalates. The hydroxylation reaction occurred at the aromatic ring of phthalates and yielded
mono- and dihydroxylated phthalates. For monohydroxylated phthalate, 3-hydroxy- and 4-hydroxydialkylphthalates are the main
transformation products. In addition to hydroxylated derivatives, aliphatic chain degraded mono- and dihydroxylated phthalates
were also detected. 相似文献