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Application of Cyanobacteria ( sp.) Liquid Extract for the Alleviation of Salt Stress in Bell Pepper ( L.) Plants Grown in a Soilless System.

Bello, Adewale Suraj; Ben-Hamadou, Radhouane; Hamdi, Helmi; Saadaoui, Imen; Ahmed, Talaat ( MDPI , 2021 , Article)

Salinity is one of the abiotic stresses that affect crop growth and productivity in arid and semi-arid regions. Unfortunately, there are few known methods to mitigate the deleterious impacts of salt stress on the development ...

Evaluation of Roholtiella sp. Extract on Bell Pepper (Capsicum annuum L.) Yield and Quality in a Hydroponic Greenhouse System

Bello, Adewale Suraj; Saadaoui, Imen; Ahmed, Talaat; Hamdi, Helmi; Cherif, Maroua; ... more authors ... less authors ( Frontiers Media , 2022 , Article)

This study was carried out to investigate the impacts of cyanobacteria (Roholtiella sp.) high-value product extract (HVPE) and water resuspended biomass WRB treatments on bell pepper production using the hydroponic system ...

Co-occurrence of antibiotic and metal resistance in long-term sewage sludge-amended soils: influence of application rates and pedo-climatic conditions

Mokni-Tlili, Sonia; Hechmi, Sarra; Ouzari, Hadda Imene; Mechergui, Najet; Ghorbel, Manel; ... more authors ... less authors ( Springer , 2023 , Article)

Urban sewage sludge (USS) is increasingly being used as an alternative organic amendment in agriculture. Because USS originates mostly from human excreta, partially metabolized pharmaceuticals have also been considered in ...

Valorization of salt post-modified poultry manure biochars for phosphorus recovery from aqueous solutions: investigations on adsorption properties and involved mechanism

Hadroug, Samar; Jellali, Salah; Azzaz, Ahmed Amine; Kwapinska, Marzena; Hamdi, Helmi; ... more authors ... less authors ( Springer , 2021 , Article)

In this research work, raw poultry manure biochar (RPM-B) was post-modified by two metal salts and then evaluated for P recovery from aqueous solutions in batch mode. The modified biochar characterization showed that RPM-B ...

Carbon mineralization, biological indicators, and phytotoxicity to assess the impact of urban sewage sludge on two light-textured soils in a microcosm

Hechmi, Sarra; Hamdi, Helmi; Mokni-Tlili, Sonia; Zoghlami, Inès Rahma; Khelil, Mohamed Naceur; ... more authors ... less authors ( Wiley , 2020 , Article)

The agricultural reuse of urban sewage sludge (USS) modifies soil properties depending on sludge quality, management, and pedo-environmental conditions. The aim of this microcosm study was to assess C mineralization and ...

Use of lignite as a low-cost material for cadmium and copper removal from aqueous solutions: Assessment of adsorption characteristics and exploration of involved mechanisms

Jellali, Salah; Azzaz, Ahmed Amine; Jeguirim, Mejdi; Hamdi, Helmi; Mlayah, Ammar ( MDPI , 2021 , Article)

Lignite, as an available and low-cost material, was tested for cadmium (Cd) and copper (Cu) removal from aqueous solutions under various static experimental conditions. Experimental results showed that the removal efficiency ...

Static and dynamic investigations on leaching/retention of nutrients from raw poultry manure biochars and amended agricultural soil

Hadroug, Samar; Jellali, Salah; Jeguirim, Mejdi; Kwapinska, Marzena; Hamdi, Helmi; ... more authors ... less authors ( MDPI , 2021 , Article)

In this study, nutrients release/adsorption from/by raw poultry manure-derived biochar produced at a pyrolysis temperature of 600 °C (RPM-B) was assessed under static and dynamic conditions. Batch sequential leaching ...

Seed Biofortification by Engineered Nanomaterials: A Pathway to Alleviate Malnutrition?

De La Torre-Roche, Roberto; Cantu, Jesus; Tamez, Carlos; Zuverza-Mena, Nubia; Hamdi, Helmi; ... more authors ... less authors ( American Chemical Society , 2020 , Article Review)

Micronutrient deficiencies in global food chains are a significant cause of ill health around the world, particularly in developing countries. Agriculture is the primary source of nutrients required for sound health, and ...

Nutrient retention and release from raw exhausted grape marc biochars and an amended agricultural soil: Static and dynamic investigation

Amel, Ibn Ferjani; Jellali, Salah; Akrout, Hanene; Limousy, Lionel; Hamdi, Helmi; ... more authors ... less authors ( Elsevier , 2020 , Article)

Biochar is the solid by-product of biomass thermochemical conversion via pyrolysis technique. Biochar addition to croplands as an organic amendment can improve soil properties and increase agricultural productivity. However, ...

Sludge-derived biochars: A review on the influence of synthesis conditions on pollutants removal efficiency from wastewaters

Salah, Jellali; Khiari, Besma; Usman, Muhammad; Hamdi, Helmi; Charabi, Yassine; ... more authors ... less authors ( Elsevier , 2021 , Article)

Pyrolysis is a thermochemical process that permits the conversion of biomasses into energy (bio-oil and biogas) and a solid residue called biochar. The generation of biochar from lignocellulosic materials has been, for ...