0000000001101227

AUTHOR

J. Hassoune

showing 2 related works from this author

Management of tannery wastewaters: treatment of spent chrome tanning bath and vegetable tanning effluents

2013

Abstract In this work, a chain of treatment processes was proposed and described in order to reach better management of mineral and vegetable tannery wastewaters. First, chromium was precipitated from the spent chrome tanning bath by sodium hydroxide (NaOH) and then reformulated to form a complex of basic chromium sulfate which was tested successfully in mineral tanning process. On the other hand, the supernatant recovered after precipitation of chromium with NaOH was used to dilute vegetable tanning wastewaters characterized by a high concentration of polyphenols (about 2,574 mg/L). Diluted effluent was then treated by liming and tangential microfiltration using a ceramic membrane based on…

Pore sizeWaste managementPrecipitation (chemistry)ChemistryMicrofiltrationtechnology industry and agriculturefood and beverageschemistry.chemical_elementOcean EngineeringPulp and paper industryPollutionchemistry.chemical_compoundChromiumCeramic membraneSodium hydroxideTurbidityEffluentWater Science and TechnologyDesalination and Water Treatment
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Removal of Hexavalent Chromium from Aqueous Solutions Using Biopolymers

2018

AbstractTwo biopolymers were prepared by reaction of chestnut and quebracho tannins with gelatin extracted from untanned hide wastes. Obtained biopolymers were evaluated as adsorbents for removing ...

021110 strategic defence & security studiesEnvironmental Engineeringfood.ingredientAqueous solutionChemistry0211 other engineering and technologies02 engineering and technology010501 environmental sciences01 natural sciencesGelatinchemistry.chemical_compoundfoodAdsorptionEnvironmental ChemistryHexavalent chromium0105 earth and related environmental sciencesGeneral Environmental ScienceCivil and Structural EngineeringNuclear chemistryJournal of Environmental Engineering
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