Co-treatment of olive-mill and urban wastewaters by experimental stabilization ponds

Jail, A.; Boukhoubza, F.; Nejmeddine, A.; Sayadi, Sami; Hassani, Lahcen

doi:10.1016/j.jhazmat.2009.11.120

Cited by 22 publications

(13 citation statements)

References 53 publications

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“…Natural aquatic systems work on the natural ecological principals where aquatic plants, algae, and other microbes absorb pollutants found in the wastewater to accomplish treatment. Wastewater ponds are one of the convenient options for the effective pollutant removal [152]. The proceeding section has been reserved for recent advancements on the use of various ponds to treat wastewaters.…”

Section: Aquatic Systemsmentioning

confidence: 99%

“…There are three types of stabilization ponds, that is, (1) anaerobic ponds, (2) facultative ponds, and (3) aerobic (maturation) ponds. All of these have different action and design distinctiveness [152]. For effective performance, WSPs should be connected in a sequence of three or more with waste matter to be transferred from the anaerobic to the facultative pond and finally to the aerobic pond.…”

Section: Aquatic Systemsmentioning

confidence: 99%

“…Anaerobic ponds are built for a depth of 2 to 5 m for little detention time of 1 to 7 days. A complete design manual must be consulted for all kinds of WSPs, and the actual design will depend on the wastewater characterization and the loading rates [152]. Organic carbon is converted into methane through anaerobic bacteria, and it also removes about 60 to 65% of the BOD.…”

Section: Aquatic Systemsmentioning

confidence: 99%

“…Mechanical aerators are installed to give oxygen (O 2 ) and to sustain the aerobic microorganisms mixed and suspended in the water body for high rate nutrient removal and organic degradation [151]. To reduce the interference with the aerators influent must be subjected to screening and pretreatment to remove trash fine and coarse particles [152]. Increased mixing along aeration through mechanical components in aerated ponds ensures high organic loading in the ponds.…”

Section: Aquatic Systemsmentioning

confidence: 99%

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Natural Treatment Systems as Sustainable Ecotechnologies for the Developing Countries

Mahmood

Pervez

Zeb

et al. 2013

BioMed Research International

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The purpose of natural treatment systems is the re-establishment of disturbed ecosystems and their sustainability for benefits to human and nature. The working of natural treatment systems on ecological principles and their sustainability in terms of low cost, low energy consumption, and low mechanical technology is highly desirable. The current review presents pros and cons of the natural treatment systems, their performance, and recent developments to use them in the treatment of various types of wastewaters. Fast population growth and economic pressure in some developing countries compel the implementation of principles of natural treatment to protect natural environment. The employment of these principles for waste treatment not only helps in environmental cleanup but also conserves biological communities. The systems particularly suit developing countries of the world. We reviewed information on constructed wetlands, vermicomposting, role of mangroves, land treatment systems, soil-aquifer treatment, and finally aquatic systems for waste treatment. Economic cost and energy requirements to operate various kinds of natural treatment systems were also reviewed.

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Section: Aquatic Systemsmentioning

confidence: 99%

Section: Aquatic Systemsmentioning

confidence: 99%

Section: Aquatic Systemsmentioning

confidence: 99%

Section: Aquatic Systemsmentioning

confidence: 99%

See 2 more Smart Citations

Natural Treatment Systems as Sustainable Ecotechnologies for the Developing Countries

Mahmood

Pervez

Zeb

et al. 2013

BioMed Research International

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“…The annual production of black and highly toxic olive mill wastewater in the Mediterranean olive-growing countries is estimated at about 10–30 million m 3 . The disposal of such effluents without any treatment is known to cause serious environmental problems [1]. For example, in Israel, in the winter of 2006-2007, olive mill wastewater effluents seriously impacted the water quality of several springs along the Keziv stream (Elhanani, personal communication); many other instances have gone unreported [2].…”

Section: Introductionmentioning

confidence: 99%

The Use of Clay-Polymer Nanocomposites in Wastewater Pretreatment

Rytwo

2012

The Scientific World Journal

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Some agricultural effluents are unsuitable for discharge into standard sewage-treatment plants: their pretreatment is necessary to avoid clogging of the filtering devices by colloidal matter. The colloidal stability of the effluents is mainly due to mutual repulsive forces that keep charged particles in suspension. Pretreatment processes are based on two separate stages: (a) neutralization of the charges (“coagulation”) and (b) bridging between several small particles to form larger aggregates that sink, leaving clarified effluent (“flocculation”). The consequent destabilization of the colloidal suspension lowers total suspended solids (TSSs), turbidity, and other environmental quality parameters, making the treatments that follow more efficient. Clay-based materials have been widely used for effluent pretreatment and pollutant removal. This study presents the use of nanocomposites, comprised of an anchoring particle and a polymer, as “coagoflocculants” for the efficient and rapid reduction of TSS and turbidity in wastewater with a high organic load. The use of such particles combines the advantages of coagulant and flocculant by neutralizing the charge of the suspended particles while bridging between them and anchoring them to a denser particle (the clay mineral), enhancing their precipitation. Very rapid and efficient pretreatment is achieved in one single treatment step.

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Operational Cost Comparison of Several Pre‐Treatment Techniques for OMW Treatment

Coskun

Debik

Demır

2011

CLEAN Soil Air Water

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Olive mill wastewaters (OMWs), which are known to have deep impacts on the receiving water bodies due to their high-strength contents of organic materials and color, must be treated before discharge. For this reason; a number of research studies have been available in current literature related to the treatment of OMWs. However, no widely accepted treatment alternatives have been proposed yet. The common results of these studies suggest that OMWs must be pretreated prior to final purification processes. This study focuses on the comparison of alternative pre-treatment processes in the aspect of chemical oxygen demand (COD) removal and costs of operation. Centrifuging, lime precipitation, acid cracking, and electrocoagulation processes were performed to compare removal efficiencies and operational costs. The COD removal efficiencies for centrifuging, lime precipitation, acid cracking, and electrocoagulation processes were determined to be 30.1, 24.1, 20.0, 53.7%, respectively, with operational costs being $0.30, $0.37, $1.42, and $11.60 per cubic meter of wastewater treated, respectively. The centrifuging process was concluded to be the most appropriate one according to the COD removal efficiency and cost of operation.

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Co-treatment of olive-mill and urban wastewaters by experimental stabilization ponds

Cited by 22 publications

References 53 publications

Natural Treatment Systems as Sustainable Ecotechnologies for the Developing Countries

Natural Treatment Systems as Sustainable Ecotechnologies for the Developing Countries

The Use of Clay-Polymer Nanocomposites in Wastewater Pretreatment

Operational Cost Comparison of Several Pre‐Treatment Techniques for OMW Treatment

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