MADFORWATER. WP4-Field pilots for the adaptation and integration of technologies. Task 4.3-Operation and optimization of the field pilots. Effect of municipal wastewater post-aeration on clogging potential

Choukr-Allah, Redouane ; Benlouali, Hajar (2020) MADFORWATER. WP4-Field pilots for the adaptation and integration of technologies. Task 4.3-Operation and optimization of the field pilots. Effect of municipal wastewater post-aeration on clogging potential. -. DOI 10.6092/unibo/amsacta/6393. [Dataset]
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Abstract

In Agadir, a water-scarce Moroccan region, municipal and industrial wastewater is tertiary-treated to be reused in golf courses. Wastewater reuse has been constrained by severe emitter clogging that caused technical and financial problems. This study aimed to perform an in-depth characterization of the treated wastewater in relation to its susceptibility to cause clogging, and to assess the capacity of an aeration post-treatment to reduce the clogging potential. The post-treatment consisted in injecting different airflows (0-33 L/min/Lreactor) into the treated wastewater. The structural, morphological and elemental composition of the clogging matter collected in the irrigation pipeline was characterized using Scanning Electron Microscopy, Scanning Transmission Electron Microscopy, X-ray Diffraction and X-ray Energy Dispersive Spectroscopy. The 15-day aeration post-treatment at 16.5 L/min/Lreactor presented the best cost-benefit ratio. Organic matter was totally degraded. Calcium was reduced by 9%, bicarbonates by 54%. The analysis of the deposits induced by the aeration post-treatment revealed a relevant decrease of the major constituents of the clogging deposits found in the irrigation pipeline. The results show the effectiveness of post-aeration in biodegrading residual organic matter and precipitating several salts, thus reducing the clogging potential.

Abstract
Document type
Dataset
Creators
CreatorsAffiliationORCID
Choukr-Allah, RedouaneHassan II Institute of Agronomy and Veterinary Medicine
Benlouali, HajarHassan II Institute of Agronomy and Veterinary Medicine
Keywords
Biodegradation, clogging, irrigation, post-aeration, precipitation, wastewater reuse
Subjects
DOI
Contributors
NameAffiliationORCIDType
Frascari, DarioUniversità di BolognaContact person
Karmal, IIbn Zohr UniversityData collector
Deposit date
29 May 2020 10:52
Last modified
29 May 2020 10:52
Project name
MADFORWATER - DevelopMent AnD application of integrated technological and management solutions FOR wasteWATER treatment and efficient reuse in agriculture tailored to the needs of Mediterranean African Countries
Funding program
EC - H2020
URI

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