Enhancement of Quality of Secondary Industrial Wastewater Effluent by Coagulation Process: A Case Study

Altaher, Hossam; Al‐Ghamdi, Ahmed A.

doi:10.4236/jep.2011.29144

Cited by 14 publications

(13 citation statements)

References 9 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Turbidity is caused by small particles that may be organic or inorganic and can provide food and shelter for pathogens providing a possible explanation of its strong positive correlation with Salmonella count at the NWWTW ( Table 4 ). If not removed, turbidity can promote the regrowth of pathogens in the final effluent of receiving water body into which the effluent is discharged [ 38 ]. Turbidity also limits the bactericidal effect of chlorine in the wastewater during disinfection [ 35 ] and may react with organic compounds in the water to form micro-contaminants such as trihalomethane (THM).…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Antimicrobial Resistant and Virulent Salmonella spp. in Treated Effluent and Receiving Aquatic Milieu of Wastewater Treatment Plants in Durban, South Africa

Odjadjare

Olaniran

2015

IJERPH

View full text Add to dashboard Cite

In this study, we evaluated the impact of treated wastewater effluent from two wastewater treatment plants on the physicochemical parameters and Salmonella spp. load of receiving rivers. Presumptive Salmonella spp. were obtained at all sampled points including the discharge points, with counts ranging from 0 to 4.14 log cfu/mL at both plants. Turbidity, chemical and biological oxygen demand were found to be high and mostly above the required limit for treated wastewater discharge. However, recorded nitrate and phosphate values were very low. Of the 200 confirmed Salmonella spp. isolates recovered from the treated effluent and receiving surface waters, 93% harbored the spiC gene, 84% harbored the misL gene, and 87.5% harbored the orfL gene while 87% harbored the pipD gene. The antibiotic resistance profile revealed that the isolates were resistant to sulfamethoxazole, nalidixic acid and streptomycin, but susceptible to quinolones and third generation β-lactams. These results indicate that in South Africa treated effluents are still a major source of contamination of rivers with pathogens such as Salmonella. Appropriate steps by the regulatory authorities and workers at the treatment plants are needed to enforce stipulated guidelines in order to prevent pollution of surface water resources due to the discharge of poorly treated effluents.

show abstract

Section: Discussionmentioning

confidence: 99%

Prevalence of Antimicrobial Resistant and Virulent Salmonella spp. in Treated Effluent and Receiving Aquatic Milieu of Wastewater Treatment Plants in Durban, South Africa

Odjadjare

Olaniran

2015

IJERPH

View full text Add to dashboard Cite

show abstract

“…Les échantillons prélevés, soigneusement étiquetés et conservés à 5 °C dans des glacières sont ensuite transportés au laboratoire pour les autres analyses électrochimiques. Ces échantillons ont été protégés contre les rayonnements solaires durant le transport (Altaher et al, 2011;Savadogo et al, 2013) pour éviter toute décomposition anaérobie.…”

Section: Materiel Et Methodes Présentation Des Sites D'étudeunclassified

Analyses électrochimiques des eaux de pluie provoquées: cas du Burkina Faso

Maman¹,

Sawadogo²,

Bambara³

et al. 2018

Int. J. Bio. Chem. Sci

View full text Add to dashboard Cite

REMERCIEMENTS Ce travail a été financé par «Programme SAAGA» de la base aérienne du Burkina Faso. Les auteurs expriment leurs remerciements pour l'appui technique, matériel et financier dont ce travail a bénéficié. RÉSUMELa problématique de l'accès à l'eau constitue une préoccupation majeure pour tous, du fait qu'elle est étroitement liée à la santé et au développement socio-économique. L'accès à l'eau pour les populations rurales des pays en développement reste un défi à relever. Au Burkina Faso, malgré les efforts fournis par l'Etat et ses partenaires au développement, la rareté de la ressource demeure une réalité. Dans le cadre d'une gestion participative des eaux de pluie provoquées au Burkina Faso, un suivi de la qualité des eaux a été réalisé en campagne pluvieuse. Cette étude fait l'état des lieux de l'impact des opérations d'ensemencement des nuages du PROGRAMME SAAGA sur la pollution de l'environnement au Burkina Faso. L'objectif du travail est de déterminer le niveau de concentration en ions calcium (Ca Mots clés : Eaux de pluie, Ensemencement des nuages, Programme SAAGA, Ionométrie, voltamétrie cyclique, Burkina Faso. MAMAN et al. / Int. J. Biol. Chem. Sci. 11(5): 2521-2536, 2017 2522 Electrochemical analysis of rainwater caused: cas of Burkina Faso ABSTRACT The problematic of the access to water constitutes a major concern for all, because of its strong linkage to health and to socio-economic development. The Access to water for rural populations in developing countries remains a challenge for the sustainable development despite the efforts deployed by the government and its partners to achieve the Millennium development goals, the lack of water remains a reality especially in Burkina Faso. As part of a participatory management of rainwater caused in Burkina Faso, monitoring the water quality was carried in the rainy season. This study is an inventory of the impact of clouds seeding program of "PROGRAMME SAAGA" on environmental pollution in Burkina Faso. The objective of this study is to determine the level of concentration of the calcium ions (Ca M.A.

show abstract

“…Coagulation is the most widely used chemical pre-treatment process for water and industrial wastewater, due to its economic and efficiency advantages, compared to alternatives, in reducing COD, SOG, TSS and turbidity (Altaher & Alghamdi 2011;Ngamlerdpokin et al 2011). In coagulation, the coagulant is added to neutralize ionic charges to destabilize colloidal materials, causing small particles to agglomerate into larger, settlable flocs.…”

Section: Introductionmentioning

confidence: 99%

Treatment of industrial mineral oil wastewater – effects of coagulant type and dosage

Tetteh

Rathilal

Robinson³

2017

Water Practice and Technology

View full text Add to dashboard Cite

The use of coagulants is essential in the diverse disciplines of conventional water and wastewater treatment. This work aimed to select an economic and effective coagulant, to minimize the cost of treatment and the oil droplet content of the water, thus enhancing the efficiency of a local South African oil refinery effluent plant recovering water and oil for reuse by treating the industrial mineral oil wastewater. A standard dissolved air flotation jar test preceded evaluation of four coagulants, viz. aluminum sulfate (Alum), aluminum chloride, ferric sulfate and ferric chloride. Chemical oxygen demand, soap oil and grease, total suspended solids and turbidity were determined as water quality parameters to check coagulant efficiency. Removal of over 70% was achieved for each parameter. The results obtained at pH 5 and coagulant dose of 50 mg/L showed that alum was the best pretreatment coagulant for destabilizing and minimizing oil droplets in water, due to its trivalent cationic nature. It was also economically viable.

show abstract

Enhancement of Quality of Secondary Industrial Wastewater Effluent by Coagulation Process: A Case Study

Abstract: ABSTRACT

Cited by 14 publications

References 9 publications

Prevalence of Antimicrobial Resistant and Virulent Salmonella spp. in Treated Effluent and Receiving Aquatic Milieu of Wastewater Treatment Plants in Durban, South Africa

Prevalence of Antimicrobial Resistant and Virulent Salmonella spp. in Treated Effluent and Receiving Aquatic Milieu of Wastewater Treatment Plants in Durban, South Africa

Analyses électrochimiques des eaux de pluie provoquées: cas du Burkina Faso

Treatment of industrial mineral oil wastewater – effects of coagulant type and dosage

Contact Info

Product

Resources

About