Optimizing the recovery process of ceramic grade calcium fluoride from hydrofluoric/hexafluorosilicic acid wastewater

QTP Tran, PH Lin - Journal of Cleaner Production, 2022 - Elsevier
Chemical precipitation using calcium salts has been widely applied in hydrofluoric acid
wastewater treatment due to its simplicity, flexibility and economy. Coagulants/flocculants …

treatment of Hydrogen Fluoride Generated from the F-gases Decomposition Processes

JH Park, CY Choi, TH Kim, IH Shin, YS Son - Asian Journal of Atmospheric …, 2016 - Springer
The objective of this study is to obtain the optimal conditions to remove hydrogen fluoride
(HF) generated from a variety of F-gas treatment processes. First, we selected Ca (OH) 2 …

Simulation of alternative process schemes for hydrofluoric and phosphoric acid stream treatment and nutrient recovery

K Ohanessian, C Barca, A Soric, JH Ferrasse… - Process Integration and …, 2023 - Springer
Hydrofluoric and phosphoric acid streams produced by the microelectronic industry usually
present high flow and high contents of phosphorus, nitrogen, fluorine, and organic carbon …

[PDF][PDF] Optimisation de filières de traitement des eaux résiduaires industrielles par couplage de procédés physico-chimiques, thermiques et biologiques

K Ohanessian, A SORIC, JH FERRASSE - 2019 - theses.fr
L'objectif général est d'étudier différentes configurations de couplage de procédés à partir
de données de la littérature et autres données théoriques. L'étude doit permettre de générer …

Nevtralizacija odpadnih mešanih anorganskih kislin z apneno suspenzijo v industrijskem mešalnem reaktorju

A Štros - 2021 - repozitorij.uni-lj.si
V magistrski nalogi je predstavljeno, kako lahko različni parametri mešanja vplivajo na
celotno kakovost mešanja v procesu nevtralizacije v mehansko mešani posodi s pomočjo …

Optimisation of Fluorinated and Phosphorus acids stream treatment from Microelectronic industry

K Ohanessian, C Barca, JH Ferrasse… - 21st Conference on …, 2018 - amu.hal.science
The treatment of fluorinated and phosphorus acid microelectronic stream was studied by
physiochemical simulations by ProSimPlus software. The conventional treatment is carry out …