Analysis of wastewater discharges to the Wadi Kebir East River by the environmental discharge objectives (EDO) method

Bahroun, Sofia; Bousnoubra, Houria; Drouiche, Nadjib; Kherici, Nacer

doi:10.1080/19443994.2016.1146924

Cited by 10 publications

(4 citation statements)

References 1 publication

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“…The global trends of water ecosystem evolution can be, however, strongly biased by local effluent discharge, such as from the dairy industry [8]. Thus, phosphate is widely recognized as a very efficient tracer of urban wastewater efflux to the environment [9].…”

Section: Introductionmentioning

confidence: 99%

Small Boreal Lake Ecosystem Evolution under the Influence of Natural and Anthropogenic Factors: Results of Multidisciplinary Long-Term Study

Shirokova

Vorobieva

Zabelina

et al. 2016

Water

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Small aquatic ecosystems of the boreal zone are known to be most sensitive indicators of on-going environmental change as well as local anthropogenic pressure, while being highly vulnerable to external impacts. Compared to rather detailed knowledge of the evolution of large and small lakes in Scandinavia and Canada, and large lakes in Eurasia, highly abundant small boreal lakes of northwest Russia have received very little attention, although they may become important centers of attraction of growing rural population in the near future. Here we present the results of a multidisciplinary, multi-annual study of a small boreal humic lake of NW Russia. A shallow (3 m) and a deep (16 m) site of this lake were regularly sampled for a range of chemical and biological parameters. Average multi-daily, summer-time values of the epilimnion (upper oxygenated) layer of the lake provided indications of possible trends in temperature, nutrients, and bacterio-plankton concentration that revealed the local pollution impact in the shallow zone and overall environmental trend in the deep sampling point of the lake. Organic phosphorus, nitrate, and lead were found to be most efficient tracers of local anthropogenic pollution, especially visible in the surface layer of the shallow site of the lake. Cycling of trace elements between the epilimnion and hypolimnion is tightly linked to dissolved organic matter speciation and size fractionation due to the dominance of organic and organo-ferric colloids. The capacity of lake self-purification depends on the ratio of primary productivity to mineralization of organic matter. This ratio remained >1 both during winter and summer periods, which suggests a high potential of lake recovery from the input of allochthonous dissolved organic matter and local anthropogenic pollution.

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Section: Introductionmentioning

confidence: 99%

Small Boreal Lake Ecosystem Evolution under the Influence of Natural and Anthropogenic Factors: Results of Multidisciplinary Long-Term Study

Shirokova

Vorobieva

Zabelina

et al. 2016

Water

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“…In addition, The presence of sulphate ions in water is related to the dissolution of gypsum formations on the one hand, and to pesticides from irrigation waters on the other hand [26]. (Figure 2h).…”

Section: Resultsmentioning

confidence: 99%

Water Quality of the Kebir Watershed, Northeast of Algeria

Amamra¹,

Khanchoul²

2019

J. CleanWAS

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Water is a natural resource indispensable not only for the maintenance of human life and health but also for the preservation of all ecosystems and economic activities. At the global level, water is threatened in its quality and quantity by various pollutions such as uncontrolled urban and industrial wastes, excessive use of chemical fertilizers and pesticides in agriculture and the exploitation irrationality of this resource. Water quality in Kebir River has been adversely affected by pollutants usually without any treatment. Chemical and physical degradations are due to agricultural and industrial practices and domestic wastewaters. The aim of the present study is to evaluate water quality of the Kebir and Bougous rivers. The physicochemical parameters are analyzed by using the Titrimetry standard procedure and a Spectrophotometer device. The observed values of different physical and chemical parameters like temperature, pH, electrical conductivity, dissolved oxygen, chloride ions, calcium, magnesium, sulfate, nitrite, nitrate, and ammonium have been also performed. Water is sampled at three study sites with four surveys during 2015 and 2016. The results show the existence of a seasonal variation of the physicochemical element concentrations. Also, there is an eutrophication caused mainly by chemical fertilizers used for agriculture. The present findings alert the inhabitant's sanitation of irrigation water and environmental hygiene, where water quality varies from a moderate pollution state at some sampling stations to a very strong pollution downstream. The used parameters can also be useful when searching deeply for pollution causes and when planning preventive measures for protective purpose.

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“…The maximum assimila tion rate of ammonium and nitrate by bacteria in the seawater has been previously deter mined, reaching a value of 1.96 × 10 −3 mg L −1 day −1 [47]. Therefore, with nitrogen discharges to the ocean at concentrations from 12.48 to 40.67 mg L −1 for nitrate and 5.29 to 54.90 mg L −1 for ammonium [11,[31][32][33][34], the natural cycle of microbial nitrogen metabolization is no sufficient to remove the excess of this compound in the medium. For this reason, it is nec essary to find a way to remove this excess nitrogen to avoid eutrophication problems in coastal marine systems.…”

Section: Microorganisms Responsible For the Natural Metabolization Of...mentioning

confidence: 91%

“…Fish farming and urban wastewater discharge zones have shown concentrations from 12.48 to 40.67 mg L −1 for nitrate and from 5.29 to 54.90 mg L −1 for ammonium. [11,[31][32][33][34]. These measurements are 20 to 70 times and 40 to 3000 times higher than the nitrate and ammonium averages in the non-disturbed coastal sea, respectively [35,36].…”

Section: Sources and Effects Of Nitrogen Excess On Coastal Marine Eco...mentioning

confidence: 99%

Microbial Electrochemical Technologies for Sustainable Nitrogen Removal in Marine and Coastal Environments

Fuente

Bustos

Iglesia

et al. 2022

IJERPH

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For many years, the world’s coastal marine ecosystems have received industrial waste with high nitrogen concentrations, generating the eutrophication of these ecosystems. Different physicochemical-biological technologies have been developed to remove the nitrogen present in wastewater. However, conventional technologies have high operating costs and excessive production of brines or sludge which compromise the sustainability of the treatment. Microbial electrochemical technologies (METs) have begun to gain attention due to their cost-efficiency in removing nitrogen and organic matter using the metabolic capacity of microorganisms. This article combines a critical review of the environmental problems associated with the discharge of the excess nitrogen and the biological processes involved in its biogeochemical cycle; with a comparative analysis of conventional treatment technologies and METs especially designed for nitrogen removal. Finally, current METs limitations and perspectives as a sustainable nitrogen treatment alternative and efficient microbial enrichment techniques are included.

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Analysis of wastewater discharges to the Wadi Kebir East River by the environmental discharge objectives (EDO) method

Cited by 10 publications

References 1 publication

Small Boreal Lake Ecosystem Evolution under the Influence of Natural and Anthropogenic Factors: Results of Multidisciplinary Long-Term Study

Small Boreal Lake Ecosystem Evolution under the Influence of Natural and Anthropogenic Factors: Results of Multidisciplinary Long-Term Study

Water Quality of the Kebir Watershed, Northeast of Algeria

Microbial Electrochemical Technologies for Sustainable Nitrogen Removal in Marine and Coastal Environments

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