[HTML][HTML] Heavy metals removal from water and wastewater

L Lupa, L Cocheci - 2023 - intechopen.com
The chapter summarizes the main treatment processes used for the removal of heavy metals
from water and wastewater. Heavy metals present a recalcitrant and persistent character, a …

Eco-efficiency analysis of desalination by precipitation integrated with reverse osmosis for zero liquid discharge in oil refineries

FM Ronquim, HM Sakamoto, JC Mierzwa… - Journal of Cleaner …, 2020 - Elsevier
In a process for industrial water reuse with zero liquid discharge (ZLD), a membrane
separation step followed by an evaporative process is usually required. It is proposed here …

Efficient removal of hexavalent chromium from electroplating wastewater using polypyrrole coated on cellulose sulfate fibers

A Hosseinkhani, BF Rad, M Baghdadi - Journal of Environmental …, 2020 - Elsevier
In this study, cellulose sulfate was synthesized through sulfonation of cotton, and polypyrrole
was coated on the surface of fibers. Then, the optimum ratio of pyrrole to cellulose sulfate …

Crystallization kinetics and mechanisms of calcium sulfate dihydrate: experimental investigation and theoretical analysis

S Tang, Y Ji, K Ge - Industrial & Engineering Chemistry Research, 2020 - ACS Publications
In this work, four influencing factors including temperature, stirring speed, pH value, and
polymer concentration were chosen to investigate crystallization kinetics of calcium sulfate …

Produced water softening using high-pH catholyte from brine electrolysis: reducing chemical transportation and environmental footprints

G Khajouei, HI Park, HO Finklea… - Journal of Water …, 2021 - Elsevier
This study evaluates the benefits of using brine electrolysis for generating caustic soda
(NaOH) and free chlorine for on-site produced water (PWs 1) treatment. A two-compartment …

Highly efficient radium removal from mine wastewater with fly ash NaP1 zeolite

K Samolej, W Franus - Separation and Purification Technology, 2024 - Elsevier
This study investigates the application of NaP1 zeolite, synthesized hydrothermally from F-
class fly ash, for treating radium-contaminated mine water. The objective was to assess the …

Inhibition of barium sulfate precipitation during water injection into oil reservoirs using various scale inhibitors

A Khormali, S Ahmadi, Y Kazemzadeh - Arabian Journal for Science and …, 2023 - Springer
In this work, barium sulfate precipitation was analyzed under ambient and reservoir
conditions. The worst scenario for barium sulfate precipitation occurred at a mixing ratio of …

Influence of temperature and flow rate on alteration layer structure and leaching properties of simulated sulfur-containing borosilicate HLW glass under multi-field …

H An, H Zhang, Q Lian, Z Jiang, L Xu, L Wu - Journal of Non-Crystalline …, 2024 - Elsevier
During long-term deep geological disposal process, high-level liquid waste (HLW) glass
may be exposed to “Thermodynamics-Hydrodynamics-Mechanics-Chemistry”(THMC) multi …

Remediation of Annular Gas Migration along Cemented Wellbores Using Reactive Mineral Fluids: Experimental Assessment of Sodium Bicarbonate and Sodium …

TKT Wolterbeek, SJT Hangx - Energies, 2021 - mdpi.com
Achieving zonal isolation along wellbores is essential for upholding the containment
integrity of subsurface reservoirs and preventing fluid seepage to the environment. The …

An eco-efficiency analysis of refinery effluent pretreatments for water reuse under a Zero Liquid Discharge regime

H Sakamoto, BA de Sá Teles, L Kulay - Science of the Total Environment, 2021 - Elsevier
This paper presents an eco-efficiency analysis of five scenarios for treating a petrochemical
unit effluent defined sequentially to increase the water reuse rate to the limit condition of …