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eLibrary > AWWA Manual M7 Problem Organisms in Water: Identification and Treatment, Fourth Edition >

AWWA Manual M7 Problem Organisms in Water: Identification and Treatment, Fourth Edition, 2025

Preface
1.3 COMMON BIOLOGICAL TREATMENT APPLICATIONS
1.4 HISTORY OF BIOLOGICAL DRINKING WATER TREATMENT
1.5 PLANNING FOR BIOLOGICAL TREATMENT
1.6 DESIGN OF BIOLOGICAL TREATMENT SYSTEMS
1.7 OPERATION AND MONITORING OF BIOLOGICAL TREATMENT SYSTEMS
1.8 REFERENCES
2.2 PLANNING
2.3 DESIGN
2.4 OPERATIONS
2.5 FEATURED CASE STUDIES
Aerobic Biotreatment of Groundwater
3.1 APPLICATION OVERVIEW
3.2 PLANNING
3.3 DESIGN
3.4 OPERATIONS
3.5 FEATURED CASE STUDIES
2.6 REFERENCES
Figure 3-13 �Raw (A) and finished manganese concentrations (B) at the Park Street Wellfield water treatment plant from February 2019 to July 2020
Figure 3-12 Manganese acclimation at the Park Street Wellfield water treatment plant
Figure 3-11 Process flow diagram
Figure 3-10 Iron (A), manganese (B), and total arsenic concentrations (C) in the raw water, contactor effluent, and filter effluent, and soluble arsenic speciation in the contactor effluent (D) over the course of the pilot study
Figure 3-9 Nitrogen species through the contactor (A) and the biofilter (B) over the course of the pilot study
Figure 3-8 Process flow diagram (A) and photograph of pilot system (B)
Figure 3-7 Average iron (A), arsenic (B), and inorganic nitrogen species (C) through the treatment plant
Figure 3-6 DO (A) and pH (B) profiles through the treatment plant. Points show the average value, and error bars represent one standard deviation.
Figure 3-5 Aeration blowers (A) and gravity sand biologically active filters at Greene County Southern Plant (B) (Lytle et al. 2007a)
Figure 3-4 Process flow diagram for Greene County Southern Plant
Figure 3-3 Schematic of aeration contactor followed by filtration
Figure 3-2 Schematic of air injection and pressurized filtration system
Figure 3-1 Schematic of open aeration followed by filtration system
Figure 2-12 Acclimation of manganese removal
Figure 2-12 Acclimation of ATP on filter media and TOC removal
Figure 2-11 Photo of the LLWTP biofilters
Figure 2-10 Process flow diagram for the LLWTP
Figure 2-9 Filters before (left) and after (right) maintenance cleaning
Figure 2-8 Enzyme activity associated with nonchlorinated and chlorinated backwash
Figure 2-7 Biomass accumulation in filters backwashed with nonchlorinated and chlorinated water
Figure 2-6 Hayden Bridge Filtration Plant pilot system
Figure 2-5 Process flow diagram for the Hayden Bridge Filtration Plant following conversion to biofiltration
Figure 2-4 DRWP TOC removal
Figure 2-3 Photo of converted GAC/sand filters
Figure 2-2 Process flow diagram for the Dublin Road Water Plant
Figure 2-1 Example process flow diagrams for most common intentional biofiltration processes: direct filtration (pre-ozonation) (A) and conventional treatment (intermediate ozonation) (B)
Figure 1-5 Example schematic of operational phases for biological treatment
Figure 1-4 Increasing implementation of surface water biofiltration in the United States
Figure 1-3 Implementation of biological drinking water treatment
Figure 1-2 Example biochemical oxidation and reduction reactions
Figure 1-1 Organization of subsequent application Chapters 2–5
Table 1-1 Summary of biological process monitoring tools (Hooper et al. 2019, Evans et al. 2013)
Table 2-1 Contaminant drivers and removal potential by biofiltration* (surface-water specific)
Table 2-2 Removal ranges of emerging contaminants with biofilters
Table 2-3 Example pathways for biological contaminant removal
Table 2-4 Summary of benefits, limitations, and common objectives of each testing scale
Table 2-5 Description of key filter design factors for testing
Table 2-6 Common chemicals added in biofiltration applications (WRF Project #4719)
Table 2-7 Media selection considerations
Table 2-8 Recommended monitoring for operational parameters
Table 2-9 Recommended monitoring for water quality parameters
Table 2-10 Recommended monitoring for biological parameters
Table 2-11 Recommended monitoring for process integrity
Table 2-12 Common challenges and potential solutions
Table 2-13 Water quality
Table 2-14 Biological treatment design criteria
Table 2-15 Water quality
Table 2-16 Biological treatment design criteria
Table 2-17 Pilot biofilters average performance
Table 2-18 Raw water quality (January 2014 through December 2014)
Table 2-19 Biofilter influent water quality (November 2013 through December 2015)
Table 2-20 Biological treatment design criteria
Table 2-21 Biofilter operational parameters during study
Table 3-1 Summary of selected pilot- and full-scale aerobic groundwater biotreatment systems
Table 3-2 Oxidation stoichiometry for reduced species common in drinking water
Table 3-3 Existing US regulations for contaminants of interest
Table 3-4 Treatment alternatives
Table 3-5 Comparison of process configurations
Table 3-6 Comparison of aeration systems (Lytle et al. 1998)
Table 3-7 Backwash water source comparisons
Table 3-8 Recommended monitoring parameters
Table 3-9 Strategies to address suboptimal treatment performance
Table 3-10 Aerobic biotreatment of groundwater case studies
Table 3-11 Raw water quality
Table 3-12 Design criteria
Table 3-13 Raw water quality
Table 3-14 Pilot design criteria
Table 3-15 Raw water quality
Table 3-16 Biotreatment design criteria
Table 3-17 Filter operating parameters, June 2019 through June 2020 [Go to Page]

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AWWA Manual M7 Problem Organisms in Water: Identification and Treatment, Fourth Edition, 2025

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