Vol. 8 & Issue 4 ; Section D : Environmental Sciences

Date : Aug. to Oct.2018


Study on Effect of Hydrogen Peroxide on Removal of Diesel Contaminated Soil

Alfa-Sika Mande Seyf-Laye, Dougna Akpénè Amenuvevega ,Tchakala Ibrahim,Djaneye-Boundjou Gbandi, Bawa Limam Moctar and Chen Honghan

[DOI: 10.24214/jcbps.D.8.4.40113.]

  • Abstract

    In recent years, pollution of soil and groundwater caused by fuel leakage from old underground storage tanks, oil extraction process, oil refineries, fuel distribution terminals, improper disposal and also spills during transferring has been reported. Diesel fuel has created many problems for water resources. The main objective of this research was focused on evaluating the feasibility of using Fenton process in removing TPH from unsaturated soil.  Four parameters namely TPH concentration, H2O2 amount, soil initial pH and molar ratio of H2O2/ Fe(II), were assessed in optimum condition determination. According to data, the optimum conditions were as follows: (i) the reaction time of 1 hour with H2O2 (0.01mol/L, 20 mL) leads to about 60% removal of TPH at neutral pH (7.3), (ii) H2O2/Fe (II) molar ratio of 1:1 (0.01mol/L, 5 mL) after 1 hour of reaction time gives 65% as TPH reduction rate. It appears that stepwise addition of Fenton’s reactant could lead to sustainable removal of pollutant. The results demonstrated that Fenton’s reactant can be used for treatment of contaminated soil with TPH.

Study on Physico-Chemical Parameters of Industrial Waste Water of Lucknow District

Kavya Srivastava, Aisha Siddique, Salma Khan, Waseem Ahmad Ansari,

[DOI: 10.24214/jcbps.D.8.4.41417]

  • Abstract

    The research work deals with the physico-chemical parameters of Industrial waste water. These waste water were collected from the different industrial area of Lucknow. i.e. from Bisleri Industry, IPL(Indian Pesticide Limited), These are the industries which are responsible for the pollution of surrounding and also for the pollution of aquatic environment. It was observed that the pH of the IPL industry was slightly above the desirable limit set by BIS i.e. 6.5-8.5. TDS of Bisleri industry was also found within the desirable limit which is 500mg/l. Beside this the various parameters
    were also calculated for the waste water samples like DO, BOD, COD. And it was
    observed according to the investigation point to implement advances and improvement in
    the waste water treatment methods

Physicochemistry of salty soils of the municipality of Loul Sessène (Fatick-Senegal)

Bineta FAYE SANE, Dethié NDIAYE, Abdou Aziz FAYE

[DOI: 10.24214/jcbps.D.8.4.41830]

  • Abstract

    The municipality of Loul Sessène under the effect of climate change is facing a strong advance of salty land in recent decades. The purpose of this article is to analyze the physicochemical characteristics of salty soils. The methodological approach is based on the determination of the electrical conductivity (EC) from a suspension of 20 g of soil and 200 ml of distilled water according to the ratio of the extract 1/10, the pH determination from of a suspension of 20 g of soil and 10 ml of distilled water at a ratio of 2/5, the method of extraction of soluble salts to determine the ionic balance by a mixture of 50 ml of distilled water and 20 ml of distilled water of soil and granulometric analyzes carried out with Robinson sieve and pipette method. The results obtained show that, except for the soils of "flooded tans" by the surface tide, which are slightly acidic to very alkaline, the tannic soils are on the whole very acidic. The pH is generally less than 5.3. Soil salinity is ascending; the maximum electrical conductivity of the sites is noted on the surface. A sharp advance of extremely salty soils to the detriment of salty and slightly salty soils is noted. Soils are characterized by a dominance of sodium ions (Na+) on potassium (Ka+), magnesium (Mg2+) and calcium (Ca2+). They are sodium chloride and are sandy-loamy in shrub and herbaceous tans; silt-sandy-clay in bare tanns.

Physicochimie des sols salés de la Commune de Loul Sessène (Fatick-Sénégal).

Bineta FAYE SANE, Dethié NDIAYE, Abdou Aziz FAYE

[DOI: 10.24214/jcbps.D.8.4.41830.]

  • Abstract

    La Commune de Loul Sessène sous l’effet des changements climatiques est confrontée à une forte avancée des terres salées durant ces dernières décennies. L’objectif de cet article est d’analyser les caractéristiques physico-chimiques des sols salés. La démarche méthodologique est basée sur le dosage de la conductivité électrique (CE) à partir d’une suspension de 20 g de sol et 200 ml d’eau distillée selon le rapport de l’extrait 1/10, le dosage du pH à partir d’une suspension de 20 g de sol et 10 ml d’eau distillée selon un ratio de 2/5, la méthode d’extraction des sels solubles pour déterminer le bilan ionique par un mélange de 50 ml d’eau distillée et de 20 g de sol et les analyses granulométriques effectuées avec la méthode du tamisage et de la pipette de Robinson. Les résultats obtenus montrent qu’excepté, les sols des « tannes inondés » par la marée de profondeur en surface qui sont légèrement acides à très alcalins, les sols des tannes sont dans l’ensemble très acides. Le pH est généralement inférieur à 5,3. La salinité des sols est ascendante ; le maximum de la conductivité électrique des sites est noté en surface. Une forte avancée des sols extrêmement salés au détriment des sols salés et légèrement salés est notée. Les sols se particularisent par une dominance des ions sodiums (Na+) sur le potassium (Ka+), le magnésium (Mg2+) et le calcium (Ca2+). Ils sont chlorurés sodiques et sont de texture limono-sableuse dans les tannes arbustifs et herbacés ; limon-sablo-argileuse dans les tannes nus.

Comparing methods of water use by irrigation in the horticultural hydro system of the Niayes, Senegal

Mahécor DIOUF, Saliou NDIAYE, Ibrahima DIEDHIOU, El Hadji Bamba DIAW,

[DOI: 10.24214/jcbps.D.8.4.43144]

  • Abstract

    The water valorization methods’ knowledge by the irrigation and their effects in the cultivated hydro-system of the Niayes in Senegal are a stake in the current context of the climate changes. The study was about three types of water valorization by irrigation in the Niayes hydro-system of Senegal: localized, sprinkling and manual irrigation. Comparative analysis of the different irrigation methods practiced in the study area shows that the drip (localized) irrigation is more water saver and offers more production, sprinkler irrigation as second and the traditional irrigation as third. To cover the vegetables crop cycle, the comparison between the localized irrigation and the sprinkler shows a difference of 24.5 millimeters, 6.23 millimeters between the sprinkler irrigation and the manual irrigation, 30.8 mm between the drip irrigation and the manual irrigation. The study of irrigation efficiency gave three grouped classes around 94.86% for the irrigation mode. The variance’s analysis showed a highly significant effect at the 14.39% level. Comparison of averages showed that the drip irrigation gave the best yield with an average of 28.72 tons per hectare. Sprinkler irrigation yielded 24.44 tons per hectare and traditional irrigation with an average of 20.83 tons per hectare. However, the drop irrigation is not suitable around the study area because of the iron concentration, which is very high in some places. We recommend promoting drip irrigation in areas where the iron concentration is less than 2.5 mg / liter to reduce punctures on the Niayes aquifer

Oligocene history and post-Oligocene lithostructural evolution of the continental margin of Côte d'Ivoire:contribution of seismic reflection

KOUAME Loukou Nicolas; KOUAKOU Kouassi Eric-Germain; YAO N’goran Jean-Paul ; DJROH Simon Pierre et SOMBO Boko Célestin

[DOI: 10.24214/jcbps.D.8.4.44556]

  • Abstract

    Analysis of 1500 km multi-channel seismic profiles allows to bring explanations on sedimentary and structural evolution of Côte d’Ivoire continental margin during Paleogene to Neogene. It reveals that important withdrawal of sea at Rupelian subjected the formed relief during rifting intracontinental at aerial actions provoking removal of important ante-Oligocene sediments. According to numerous eustatic fluctuations, after we attend at interaction construction/erosion which initially fosters chattian shreds formation, later on, facilitates thick sedimentary sequences post-Oligocene deposit. This sedimentary blanket, in Oligocene to Present time, is deformed by some rare faults.

L’histoire oligocène et évolution lithostructurale post-oligocène de la marge continentale de Côte d’Ivoire : apport de la sismique réflexion

KOUAME Loukou Nicolas; KOUAKOU Kouassi Eric-Germain; YAO N’goran Jean-Paul; DJROH Simon Pierre et SOMBO Boko Célestin,

[DOI: 10.24214/jcbps.D.8.4.44556.]

  • Abstract

    L’analyse de 1500 km de profils sismiques multitraces a permis d’apporter des éclaircissements sur l’évolution sédimentaire et structurale de la marge continentale ivoirienne durant la période allant du Paléogène au Néogène. Elle révèle que le recul important de la mer survenu au Rupélien a soumis le relief formé au cours du rifting intracontinental aux actions aériennes provoquant ainsi l’ablation d’importants sédiments anté-oligocènes. Au gré des nombreuses fluctuations eustatiques, on assiste à la suite à une véritable interaction construction/érosion qui d’abord favorise la formation de lambeaux chattiens et ensuite facilite le dépôt d’épaisses séries sédimentaires progradantes post-oligocènes. Cette couverture sédimentaire, d’âge Oligocène à Actuel, est plus ou moins tectonisée par quelques rares failles.

Environmental Impact of Industrial Effluent and Swage in Chembarambakkam Lake at Chennai

J.Ramkumar , L.Prabudoss kumar and M.S.Deenadayalan,

[DOI: 10.24214/jcbps.D.8.4.45766.]

  • Abstract

    The chembarambakkam lake are located at Chennai city the waste water from the industries which is situated near to the ponds and the sewage water from the house hold living around the river at the distance of 1km are discharged through the drain into the river. During the rainy season, the rain water collects in the river. The rain water is main source of water to the wells and bore wells located around the rivers at a radius of 5km.The rainwater collected in the river is contaminated with industries waste water, and sewage water and pesticide waste water which percolates to the ground and reach the bore well and well. This causes the pollution of the well and ground water becomes unfit for domestic and agricultural purposes. This paper is discussing various pollution matter in this river and heavy metal analysis of this in around lake area.

Influence of upwelling on the availability and frequency of pruning of Elagatis bipinnulata (Roy & Gaimard, 1825) landed by the Ivorian maritime artisanal fishery

Assan N’dri Florentine, Soro Yaya, Amande Monin Justin, Diaha N’guessan Constance, Angui Kouamé Jean Paul, Edoukou Abekan, N’da Konan ,

[DOI: 10.24214/jcbps.D.8.4.46776.]

  • Abstract

    This study focused on specimens of Elagatis bipinnulata  (Roy & Gaimard, 1825) landed at the Abobo-doumé pirogue dock (Côte d'Ivoire) between January and December 2015. The purpose of this study is to search for a possible relationship between fluctuating numbers and sizes of this species with upwelling. A total of 736 specimens (479 females and 257 males) ranging in length from 40 to 93 cm was sampled. The fishing effort, raised during the Hot Season (96 pirogues) records a catch of 391 individuals including 259 females and 132 males. These fish have an average weight of 2.16 kg (males: 2.09 kg and females: 2.20 kg). The average size of the landed specimens is 59.94 cm. During the cold seasons (SF) that correspond to the upwelling, 345 individuals were captured with a fishing effort of 86 canoes. Average sizes and average weights during this cold season (mean size = 59.13 cm and average weight = 2.18 kg respectively). The use of statistical tests on numbers, sizes and mean weight of catches in the marine seasons revealed no significant difference. These upwelling, which are responsible for the temperature fluctuations, therefore have no influence on the availability of E bipinnulata in the central eastern area of ​​the Atlantic Ocean.

Influence de l’upwelling sur la disponibilité et la fréquence de taille d’Elagatis bipinnulata (Guoy & Gaimard, 1824) débarqué par la pêche artisanale maritime ivoirienne

Assan N’dri Florentine, Soro Yaya, Amande Monin Justin, Diaha N’guessan Constance, Angui Kouamé Jean Paul, Edoukou Abekan, N’da Kona,

[DOI: 10.24214/jcbps.D.8.4.46776.]

  • Abstract

    Cette étude apportée sur les spécimens d’Elagatis bipinnulata (Guoy & Gaimard, 1824) débarqués au quai piroguier d’Abobo-doumé (Côte d’Ivoire) entre janvier et décembre 2015. Le but de la présente étude consiste à rechercher une éventuelle relation entre la fluctuation des effectifs et des tailles de cette espèce avec l’upwelling. Un effectif de 736 spécimens (479 femelles et 257 mâles) de longueurs à la fourche variable entre 40 et 93 cm a été échantillonné. L’effort de pêche, élevé pendant la Saison Chaude (96 pirogues) enregistre une prise de391 individus dont 259 femelles et 132 mâles. Ces poissons ont un poids moyen de  2,16 kg (mâles : 2,09.kg et femelles: 2,20.kg). La taille moyenne des spécimens débarqués est de 59,94 cm. Au cours des saisons froides (SF) qui correspondent à l’upwelling, 345 individus ont été capturés avec un effort de pêche de 86 pirogues. Tailles moyennes et poids moyens au cours de cette saison froide (taille moyenne =59,13 cm et poids moyen = 2,18 kg respectivement). L’usage des tests statistiques sur les effectifs, les tailles et les poids moyens des prises suivant les saisons marines n’a révélé aucune différence significative. Ces remontées d’eau profonde froide (upwelling), responsables desfluctuations de températures n’a donc aucune influence sur la disponibilité d’E bipinnulata dans la zone centre Est de l’océan Atlantique