Effect of Effluent Quality and Application Method on Agricultural Productivity and Environmental Control

Oron, Gideon; DeMalach, Yoel; Hoffman, Zafrir; Manor, Yossi

doi:10.2166/wst.1992.0603

Cited by 51 publications

(22 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…When a drip irrigation system is used no aerosols are formed, water logging by runoff and deep percolation is negligible and the only contact with the water occurs when the product to be consumed touches the soil; the products of plants growing above the soil are practically devoid of pathogens when the drip system is buried in the soil or covered by plastic sheets (Capra et al, 1984;Oron et al, 1996;Pescod, 1992;Bahri, 1999). Drip irrigation is, however, limited by emitter clogging.…”

Section: Introductionmentioning

confidence: 99%

Emitter and filter tests for wastewater reuse by drip irrigation

Capra

Scicolone²

2004

Agricultural Water Management

140

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Emitter and filter tests for wastewater reuse by drip irrigation

Capra

Scicolone²

2004

Agricultural Water Management

140

View full text Add to dashboard Cite

“…Drip irrigation, as highlighted by different authors (Capra et al, 1984;Pescod, 1992;Oron et al, 1996;Papayannopoulou et al, 1998, amongst others) is particularly suitable for wastewater reuse because it minimizes contact with plants and operators, does not form aerosols, and waterlogging by runoff and deep percolation is negligible. The products of plants growing above the soil are practically devoid of pathogens when the drip system is buried in the soil (sub-irrigation) or covered by plastic sheets.…”

Section: Introductionmentioning

confidence: 99%

Assessing dripper clogging and filtering performance using municipal wastewater

Capra

Scicolone²

2005

Irrig. and Drain.

View full text Add to dashboard Cite

The paper discusses some drip irrigation system management problems according to the performance of emitters and filters shown in six trials conducted in Sicily (Italy) using six kinds of municipal wastewater that has not undergone previous advanced treatment. Nine types of filters (gravel media, disk and screen) and five types of drip emitters (vortex, labyrinth and long-path) were tested. The performance of the emitters and filters tested depends on the quality of the wastewater. Total suspended solids, BOD 5 and pH are the water characteristics best correlated to emitter and filter performance.The vortex emitters tested were more sensitive to clogging than labyrinth emitters. The optimal performance of the subsurface emitters shows the feasibility of drip subirrigation. The gravel media filters guaranteed the best performance. The disk filters, which are cheaper and simpler to manage, assured satisfactory performance in most trials. Screen filters were shown to be unsuitable for use with wastewater of poor quality. The need for frequent cleanings leads to short operating times for the filters, which may cause management problems. An empirical equation is proposed to estimate the frequency of filter cleaning operations depending on the solid discharge. Copyright # 2005 John Wiley & Sons, Ltd.key words: drippers; emitter clogging; filters; irrigation; water quality; wastewater RÉ SUMÉ Dans cet article il s'agit de quelques problèmes de gérer des systèmes d'irrigation à la goutte à goutte et de la performance des goutteurs et des filtres utilisant des eaux usées urbaines. Dans ce travail on discute de certains problèmes de gestion des installations d'irrigation localisée mis en relief par les résultats des six essais de goutteurs et filtres (réalisés en Sicile, Italie) avec six types différents d'eaux usées urbaines non-soumises à traitements avancés. On a essayé neuf types de filtre (à gravillon, à disques, à mailles) et cinq types de distributeur (à tourbillon, à labyrinthe, à long parcours). Les résultats des essais ont confirmé que la performance des distributeurs et des filtres dépend de la qualité des eaux; en particulier du contenu des solides suspendus, du BOD 5 et du pH. Les goutteurs à tourbillon essayés se sont révélés plus sensibles à l'occlusion que ceux à labyrinthe. L'excellente performance des goutteurs souterrains met en relief la faisabilité de l'irrigation souterraine. Les filtres à gravillon ont été ceux qui protègent mieux les goutteurs. Les filtres à disques, plus économiques et plus faciles à gérer, assuraient une satisfaisante performance des distributeurs dans la plupart des essais. Les filtres à mailles, au contraire, ne se sont pas indiqués à l'utilisation d'eaux usées de mauvaise qualité. Les très bas temps de fonctionnement de la plupart des filtres peuvent causer des problèmes de gestion. Les résultats des essais ont permis de formuler une équation empirique pour l'évaluation de la fréquence des opérations de nettoyage des filtres en fonction du débit solide.

show abstract

“…Also, irrigating with effluents may reduce purification levels and fertilization costs, because soil and crops serve as bio-filters and effluents contain nutrients. Policy decisions regarding the level of purification and location of agriculture using effluents should consider multifarious aspects including costs, hazards of reuse of effluents [15].…”

Section: Introductionmentioning

confidence: 99%

Bioremediation of Four Food Industrial Effluents

Mcheik¹

2013

AJAF

View full text Add to dashboard Cite

Some effluents ((Whey Effluent (WhE); Orange Effluent (OE); Carrot Effluent (CE) and Chocolate Effluent (ChE)) were bioremediated using some allochthonous microorganisms (Lactobacillus delbrueckii subsp. bulgaricus, Saccharomyces cerevisiae Y-1347 and Dekkera bruxellensis). The highest biodegradable efficiency of the Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD) and Total Organic Nitrogen (TON) of the effluents under investigation was noticed when using the allochthonous microorganisms together with the autochthonous one. Saccharomyces cerevisiae Y-1347 proved to be the best utilizer of Whey (WhE) organic and nitrogenous compounds with the reduction of BOD, COD and TON by 12.36, 20.09 and 68.42%, respectively. Dekkera bruxellensis proved to be the organism of choice on using Orange Effluent (OE) where BOD, COD and TON were reduced by 18, 20 and 53.39%, respectively. Lactobacillus delbrueckii subsp. bulgaricus proved to be the best utilizer of the Carrot Effluent (CE) constituents by reducing BOD, COD and TON by 24.27, 19.33 and 63.63%, respectively. Dekkera bruxellensis proved to be the best utilizer of the Chocolate Effluent (ChE) constituents by improving its quality and reducing BOD, COD and TON by 18.36 and 15.86 and 73.07%, respectively. A successful trial was made to use the treated effluents in the irrigation of Lens culinaris and Phaseolus vulgaris seeds for germination.

show abstract

Effect of Effluent Quality and Application Method on Agricultural Productivity and Environmental Control

Cited by 51 publications

References 0 publications

Emitter and filter tests for wastewater reuse by drip irrigation

Emitter and filter tests for wastewater reuse by drip irrigation

Assessing dripper clogging and filtering performance using municipal wastewater

Bioremediation of Four Food Industrial Effluents

Contact Info

Product

Resources

About