Groundwater arsenic remediation : treatment technology and scale up / by Parimal Pal.
Arsenic abatement from groundwater in locations with a central water distribution system is relatively simple. The real challenge is selecting the most effective and affordable treatment and scale up option for locations which lack the appropriate infrastructure. Groundwater Arsenic Remediation: Tre...
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Full Text (via ScienceDirect) |
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| Format: | eBook |
| Language: | English |
| Published: |
Waltham, MA :
Butterworth-Heinemann is an imprint of Elsevier,
[2015]
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| Subjects: |
MARC
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| 100 | 1 | |a Pal, Parimal, |e author. |0 http://id.loc.gov/authorities/names/nb2016022822. | |
| 245 | 1 | 0 | |a Groundwater arsenic remediation : |b treatment technology and scale up / |c by Parimal Pal. |
| 264 | 1 | |a Waltham, MA : |b Butterworth-Heinemann is an imprint of Elsevier, |c [2015] | |
| 300 | |a 1 online resource : |b illustrations (some color) | ||
| 336 | |a text |b txt |2 rdacontent. | ||
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| 504 | |a Includes bibliographical references and index. | ||
| 505 | 0 | |a Front Cover; Groundwater Arsenic Remediation: Treatment Technology and Scale UP; Copyright; Dedication; Contents; Acknowledgements; Preface; Chapter 1: Introduction to the Arsenic Contamination Problem; 1.1. Arsenic chemistry; 1.2. Occurrence and causes of arsenic in groundwater; 1.3. Regulations and maximum contaminant level of arsenic; 1.4. Toxicity and health hazards; 1.5. Introduction to methods of arsenic removal; 1.5.1. Chemical Precipitation; 1.5.1.1. Alum Precipitation; 1.5.1.2. Iron Precipitation; 1.5.1.3. Lime Softening; 1.5.1.4. Coprecipitation; 1.5.2. Adsorption. | |
| 505 | 8 | |a 1.5.3. Ion Exchange1.5.4. Membrane Filtration; 1.5.4.1. Pressure-Driven Membrane Filtration; 1.5.5. Electrodialysis; 1.5.6. Temperature-Driven Membrane Filtration; 1.5.7. Hybrid Methods of Arsenic Removal; References; Chapter 2: Chemical Treatment Methods in Arsenic Removal; 2.1. Different forms of arsenic in groundwater; 2.2. Chemical precipitation; 2.2.1. Alum precipitation; 2.2.2. Lime softening; 2.2.3. Iron precipitation; 2.2.4. Enhanced coagulation; 2.2.5. Coprecipitation; 2.3. Physical separation; 2.3.1. Diffuse-double-layer theory. | |
| 505 | 8 | |a 2.3.2. Destabilization of colloids and settling of particles2.3.2.1. Double-layer compression; 2.3.2.2. Adsorption and neutralization of charge; 2.3.2.3. Enmeshment-precipitation; 2.3.2.4. Interparticle bridging; 2.3.3. Filtration; 2.3.3.1. Rapid sand filtration; 2.3.3.2. Backwashing; 2.4. Modeling and simulation of the physico-chemical processes for scaleup; 2.4.1. Introduction; 2.4.2. Operation of the treatment plant; 2.4.3. Measuring arsenic concentration in water; 2.4.4. Computation of percentage removal of arsenic; 2.4.5. Modeling and simulation of physico-chemical treatment process. | |
| 505 | 8 | |a 2.4.5.1. Process kinetics and modeling basis2.4.5.2. Modeling the process; 2.4.5.3. Material balance for the oxidizer unit; 2.4.5.4. Component mass balance of arsenic; 2.4.5.5. Component mass balance of oxidant; 2.4.5.6. Material balance of the coagulator and flocculator; 2.4.5.7. Material balance for the sedimentation unit; 2.4.5.8. Filtration Unit; 2.4.6. Determination of the model parameters; 2.4.6.1. Computation of flow rate and concentration of oxidant; 2.4.6.2. Computation of root mean square velocity gradient (G) in the coagulator/flocculator. | |
| 505 | 8 | |a 2.4.6.3. Computation of average flock size (dQM) in the coagulator-flocculator unit2.4.6.4. Computation of flow rate and concentration of coagulant; 2.4.6.5. Determination of settling velocity and superficial velocity in sedimentation unit; 2.4.6.6. Determination of the filtration pressure drops due to filter cake and filter medium; 2.4.6.7. Effects of the operating parameters; 2.4.6.8. Effect of pH; 2.4.6.9. Effect of oxidant dose; 2.4.6.10. Effect of coagulant dose; 2.4.6.11. Effect of feed concentration; 2.4.7. Performance of the system and the model. | |
| 520 | |a Arsenic abatement from groundwater in locations with a central water distribution system is relatively simple. The real challenge is selecting the most effective and affordable treatment and scale up option for locations which lack the appropriate infrastructure. Groundwater Arsenic Remediation: Treatment Technology and Scale UP provides the latest breakthrough groundwater treatment technologies and modeling and simulation methods for project scale up and eventually field deployment in locations which lack the proper central water distribution system to ensure arsenic free groundwater. | ||
| 546 | |a English. | ||
| 588 | 0 | |a Online resource; title from PDF title page (Ebsco, viewed May 20, 2015) | |
| 650 | 0 | |a Groundwater |x Arsenic content. |0 http://id.loc.gov/authorities/subjects/sh2007004323. | |
| 650 | 0 | |a Groundwater |x Purification |x Arsenic removal. |0 http://id.loc.gov/authorities/subjects/sh2010013332. | |
| 650 | 7 | |a Groundwater |x Arsenic content. |2 fast |0 (OCoLC)fst01766271. | |
| 650 | 7 | |a Groundwater |x Purification |x Arsenic removal. |2 fast |0 (OCoLC)fst01767834. | |
| 776 | 0 | 8 | |i Print version: |a Pal, Parimal. |t Groundwater Arsenic Remediation : Treatment Technology and Scale UP. |d Burlington : Elsevier Science, ©2015 |z 9780128012819. |
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