Emerging Technologies Report on Wastewater Treatment (PDF)

More documents

Recommendations

Info

<strong>Emerging</strong> <strong>Technologies</strong> February 2008 Technology Summary DensaDeg ® Process (Contd) Key Words for Internet Search: DensaDeg ® , High Rate Clarification, HRC Data Sources: Web site owned by Infilco Degremont. http://www.infilcodegremont.com/separations_4.html Sigmund, Thomas, et al., “Operating Chemically enhanced Clarification for Optimum Disinfection Performance,” WEFTEC, 2006. Coagulation Flocculation Clari�cation Coagulant Raw Water Polymer Floated Matter Sludge Recirculation Thickened Sludge Extraction Process Diagram of the DensaDeg ® High-Rate Clarifier and Thickener Treated Water 745043_WWT-03.ai 2-12 Wastewater Treatment and In-Plant Wet Weather Management
February 2008 Microwave UV Disinfection Objective: Tertiary Disinfection of Wastewater Effluent. State of Development: Innovative Use of Established Technology. <strong>Emerging</strong> <strong>Technologies</strong> Technology Summary Description: Ultraviolet (UV) disinfection transfers electromagnetic energy from a mercury arc lamp to wastewater. Electromagnetic radiation, between the ranges of 100 to 400 nm (UV range), penetrates bacterial cells, and works as a bactericide. Lamps containing mercury vapor, which are charged by striking an electric arcs emits UV radiation. Currently, the disinfection lamp has three main categories: (1) low-pressure, low-intensity; (2) low-pressure, high-intensity, and (3) medium-pressure, highintensity. All of these lamps contain electrodes that facilitate the generation of UV radiation. These electrodes are of delicate construction and their deterioration is the primary source of failure in UV disinfection systems. Microwave UV disinfection technology eliminates the need for electrodes by using the microwave-powered electrodeless mercury UV lamp. In this technology, microwave energy is generated by magnetrons and directed through wave guides into the quartz lamp sleeves containing argon gas. The directed microwave energy excites the argon atoms, which in turn excite the mercury atoms to produce radiation as they return from excited states to lower energy states, as is the case with other mercury UV lamps. Electrodless lamps operate at higher pressures than medium-pressure lamps, in the range of 5 to 20 atm, compared to 1 to 2 atm for medium-pressure lamps. Microwave UV lamps allow greater flexibility for variations in parameters such as lamp diameter, operating pressures, and fill materials due to the absence of electrodes. This allows for greater optimization of radiation at specific wavelength regions. The intensity of the radiation increases when the applied microwave power is increased. Comparison to Established <strong>Technologies</strong>: The lamps warm up quickly and are capable of disinfection within 12 seconds compared to startup times of 20 seconds to three minutes for electrode lamps. Eliminating the electrode using from the lamp eliminates the primary deterioration process associated with UV lamps, resulting in a lamp life approximately three times that of electrode-using lamps. Furthermore, elimination of the electrodes allows for narrower lamps, which reduces the amount of reabsorption, as well as the heat capacity and infrared radiation generated. The lamp has very low residual radiation of energy, thus almost instant shut-off capability, which prevents overheating heat-sensitive materials near the lamps. Radiation is produced through the entire length of the lamp and there is no energy loss associated with electrodes. Nevertheless, the electrodeless lamp system has more components than the conventional electrode-using system, including the magnetron, wave guides, and cooling fans. Magnetron life is limited and requires replacement. Magnetrons usually are warranted for up to 10,000 hours of operation. Available Cost Information: Approximate Capital Cost: Not disclosed by vendor as cost estimates are dependent upon local requirements and vary with specific applications. Approximate O&M Costs: Not disclosed by vendor. Vendor Name(s): Severn Trent Services 3000 Advance Lane Colmar, PA 18915 Telephone: 215-997-4000 Fax: 215-997-4062 Email: info@severntrentservices.com Web site: www.severntrentservices.com Installation(s): Scotland WWTP, UK Wastewater Treatment and In-Plant Wet Weather Management 2-13
Page 1 and 2: Emerging T
Page 3 and 4: Emerging T
Page 5 and 6: February 2008 Preface Wastewater Tr
Page 7 and 8: February 2008 Contents Wastewater T
Page 9 and 10: February 2008 List of Tables Wastew
Page 11 and 12: February 2008 Wastewater Treatment
Page 13 and 14: February 2008 Physical/Chemical Tre
Page 15 and 16: February 2008 List of Techn
Page 17 and 18: February 2008 Overview Wastewater T
Page 19 and 20: Chapter 1 Introduction and Approach
Page 21 and 22: February 2008 1.2.1 Information Col
Page 23 and 24: February 2008 Wastewater Treatment
Page 25 and 26: February 2008 Technology and Advanc
Page 29 and 30: February 2008 Table 1.2—Summary o
Page 33 and 34: February 2008 Table 1.4—Summary o
Page 35 and 36: February 2008 1.3 Guidance Document
Page 37 and 38: Chapter 2 Physical/Chemical Treatme
Page 39 and 40: February 2008 Process Figure 2.1—
Page 41 and 42: February 2008 Compressible Media Fi
Page 43 and 44: February 2008 Nanofiltration Object
Page 45 and 46: February 2008 Actiflo ® Process Ob
Page 47: February 2008 DensaDeg ® Process O
Page 51 and 52: February 2008 Blue CAT TM Objective
Page 53 and 54: February 2008 Blue PRO Objective: R
Page 55 and 56: February 2008 CoMag TM Objective: E
Page 57 and 58: February 2008 Solar Disinfection Ob
Page 59 and 60: Chapter 3 Biological Treatment Proc
Page 61 and 62: February 2008 Established T
Page 63 and 64: February 2008 Bioaugmentation Objec
Page 65 and 66: February 2008 Bioaugmentation (Cont
Page 73 and 74: February 2008 Cannibal ® Process O
Page 75 and 76: February 2008 CATABOL TM Objective:
Page 77 and 78: February 2008 Deep Shaft Activated
Page 79 and 80: February 2008 Integrated fixed-Film
Page 81 and 82: February 2008 Integrated fixed-Film
Page 83 and 84: February 2008 Membrane BioReactor (
Page 89 and 90: February 2008 Mobile-Bed Reactor Te
Page 91 and 92: February 2008 Emerging</str
Page 93 and 94: February 2008 Biological-Chemical P
Page 95 and 96: February 2008 Modified University o
Page 97 and 98: February 2008 Modified Anaerobic/Ox
Page 99 and 100:
February 2008 Trickling Filter/Soli
Page 101 and 102:
February 2008 Aerobic Granular Slud
Page 103 and 104:
February 2008 ANaerobic Membrane Bi
Page 105 and 106:
February 2008 Anaerobic Migrating B
Page 107 and 108:
February 2008 DEamMONification (DEM
Page 109 and 110:
February 2008 Hydrogen-based hollow
Page 111 and 112:
February 2008 Membrane-Aerated BioR
Page 113 and 114:
February 2008 Microbial Fuel Cell (
Page 115 and 116:
February 2008 Multi-Stage Activated
Page 117 and 118:
February 2008 Nereda TM Objective:
Page 119 and 120:
February 2008 SHARON (Single reacto
Page 121 and 122:
February 2008 SHARON - ANAMMOX (ANa
Page 123 and 124:
February 2008 STRASS Process (Nitri
Page 125 and 126:
February 2008 Vacuum Rotation Membr
Page 127 and 128:
Chapter 4 In-Plant Wet Weather Mana
Page 129 and 130:
February 2008 Continuous Deflection
Page 131 and 132:
February 2008 HYDROSELF ® Flushing
Page 133 and 134:
February 2008 Tipping Flusher ® Ob
Page 135 and 136:
February 2008 TRASHMASTER TM Net Ca
Page 137 and 138:
February 2008 WWETCO Compressed Med
Page 139 and 140:
February 2008 Emerging</str
Page 141 and 142:
February 2008 Alternative Wet Weath
Page 143 and 144:
Chapter 5 Process Monitoring <stron
Page 145 and 146:
February 2008 Figure 5.1—Evaluati
Page 147 and 148:
February 2008 Ammonia and Nitrate P
Page 149 and 150:
February 2008 Ammonia and Nitrate P
Page 151 and 152:
Page 153 and 154:
February 2008 Microwave Density Ana
Page 155 and 156:
February 2008 Microtox ® /Online M
Page 157 and 158:
February 2008 SymBio TM - Nicotinam
Page 159 and 160:
February 2008 Online Respirometry O
Page 161 and 162:
February 2008 NITROX - Oxidation Re
Page 163 and 164:
February 2008 Biological Micro-Elec
Page 165 and 166:
Page 167 and 168:
February 2008 Handheld Advanced Nuc
Page 169 and 170:
February 2008 Immunosensors and Imm
Page 171 and 172:
February 2008 Photo-electro Chemica
Page 173 and 174:
Chapter 6 Research Needs 6.1 Introd
Page 175 and 176:
February 2008 � � Wastewater Tr
Page 177 and 178:
February 2008 Exhibit 6.1—Paper f
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
likely as a component of more conve
Page 189 and 190:
Appendix A Trade Associations A.1 I
show all

Emerging Technologies Report on Wastewater Treatment (PDF)

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?