Environmental Separation of Heavy Metals: Engineering ProcessesArup K. SenGupta This new book explains advanced and emerging technologies for removing heavy metals from wastestreams and contaminated sites. Separation processes of this type are critical for meeting stringent regulations of priority pollutants, especially arsenic, mercury, and lead, which the text treats in depth. After explaining the chemistry of heavy metals and their transport in various media, the work offers a comprehensive analysis of strategies for separating metals from groundwater, wastewater, contaminated soils, and industrial sludges. Both the basics and the applications of techniques such as ion-exchange, specialized sorbents, novel membranes, advanced precipitates, and electrokinetic processes are presented with a view to current use and potential for future applications such as resource reuse. Information in this volume enables engineers and other investigators to adapt and select the best means to remove and, in certain instances, recover heavy metals. |
Contents
Underlying Chemistry | 3 |
Separation Strategies and Chapters in the Book | 9 |
A COALDERIVED HUMIC ACIDBASED | 10 |
ADSORPTION OF ELEMENTAL MERCURY BY VIRGIN | 15 |
Mercury Uptake by Impregnated Activated Carbons | 25 |
References | 42 |
ELIMINATION OF HEAVY METALS FROM WASTEWATERS | 97 |
Removal of Heavy Metals in Combination with | 106 |
Arsenic Treatment | 193 |
Summary and Conclusions | 201 |
ITS CHEMISTRY | 265 |
Underlying Principles | 273 |
Sorption Behaviors of AsIII | 282 |
Experience in Indian Subcontinent | 291 |
Conclusions | 301 |
CrIII SEPARATION AND RECOVERY FROM TANNERY | 307 |
Removal of Heavy Metals Using Microorganisms | 118 |
References | 136 |
Mercury Removal from Debris | 146 |
Removal of Mercury from Soils | 158 |
Removal of Toxic and Radioactive Metals | 168 |
Summary | 174 |
CASE STUDIES FOR IMMOBILIZING TOXIC METALS | 181 |
Other editions - View all
Environmental Separation of Heavy Metals: Engineering Processes Arup K. SenGupta Limited preview - 2001 |
Common terms and phrases
activated carbon adsorbent adsorption anion aqueous phase arsenic arsenic removal As(III As(V bed volumes BPL-S breakthrough curves capacity carbon surface cation chelating chelating exchangers chelating polymers Chemical chloride chromium chromium(III complex concentration contaminated copper Cr(III Cr(VI Cu(II debris desorption dosage EBCT EDTA effect effluent pH Environmental extraction ferric Figure filtration functional groups groundwater heavy metal high-gradient magnetic separation HNO3 humic acid Hydrodarco hydroxide increased influent inorganic ion exchange iron kinetics leachate leaching ligands magnetite matrix membrane mercury mercury(0 mercury(II metal ions metal removal mg/L microorganisms NaOH operation oxidation oxyanions particles PEIC-ff pH values pH-adsorption edges polymer polymeric precipitation presented ratio reaction recovery redox reduced regeneration resin rinse samples selectivity SenGupta sludge soil solid soluble solution sorbent sorption species sulfide sulfur Table tannery TCLP Technology temperature tests tion toxic treatment uptake waste wastewater µg/L