alternatives drying class a processing dewatering centrifuge, bfp thickened liquid sludge class a...
TRANSCRIPT
AlternativesAlternatives
Drying
Class A Processing
Dewatering Centrifuge, BFP
Thickened Liquid Sludge
Class A
LandApplication
Incineration
Pelletization
Alkaline StabilizationClass A or B
Class B
LandFill
Digestion(MAD, TPAD, AGPD)
CambiEH
Pasteurizations
Ash into bricks
Gasification
Ash
EnerTech, E-fuel
Fertilizer
Ash
Composting
Minergy, Aggregates
A.1
B.8
B.7
A.2
B.6
A.6
B.3
B.1
B.9
B.5
B.2
B.4
A.4
A.5
A.7
A.3
B.10
TABLE 4 - SOLIDS PROCESSING ALTERNATIVE TRAINS
ID Process Train
Thickened Sludge
Centrifuge Dew atering Incineration
Centrifuge Dew atering
Thickened Sludge
Drying
Ash to bricks
Pasteurization Mesophilic Anaer Dig
Belt Filter Press Dew atering
To Land Application
Thickened Sludge
To LandApplication
Centrifuge Dew atering
Cambi Mesophilic Anaer Dig
Centrifuge/BFP Dew atering
Thickened Sludge
Enzymatic Hydrolysis
Mesophilic Anaer Dig
To Land Application
Centrifuge Dew atering
Lime Stabilization
To Land Application
Thickened Sludge
Thickened Sludge
Centrifuge Dew atering
Thickened Sludge
Acid-Gas Anaer Dig
CentrifugeDew atering
To Land Application
Thickened Sludge
Centrifuge Dew atering
Drying Vitrif icationGlass
Aggregate
Auto Thermal Aerobic Dig
Temp Phased Anaer Dig
To Land Application
Thickened Sludge
Centrifuge Dew atering
To Land Application
Centrifuge Dew atering
Composting To Land Application
Thickened Sludge
Thickened Sludge
Centrifuge Dew atering
To Landfill
Thickened Sludge SlurryCarb
Centrifuge Dew atering
Fuel
Temp Phased Anaer Dig (Eggs)
To Land Application
Thickened Sludge
Centrifuge Dew atering
Temp Phased Anaer Dig (Pancakes)
To Land Application
Thickened Sludge
Centrifuge Dew atering
Thickened Sludge
Mesophilic Anaer Dig (Primary)
Centrifuge Dew atering
Drying To Land Application
Thermophilic Anaer Dig
To Land Application
Thickened Sludge
Centrifuge Dew atering
Mesophilic Anaer Dig
To Land Application
Thickened Sludge
Centrifuge Dew atering
A.1
B.8
B.7
A.2
B.6
A.6
B.3
B.1
B.9
B.5
B.2
B.4
A.4
A.5
A.7
A.3
B.10
TABLE 4 - SOLIDS PROCESSING ALTERNATIVE TRAINS
ID Process Train
Thickened Sludge
Centrifuge Dew atering Incineration
Centrifuge Dew atering
Thickened Sludge
Drying
Ash to bricks
Pasteurization Mesophilic Anaer Dig
Belt Filter Press Dew atering
To Land Application
Thickened Sludge
To LandApplication
Centrifuge Dew atering
Cambi Mesophilic Anaer Dig
Centrifuge/BFP Dew atering
Thickened Sludge
Enzymatic Hydrolysis
Mesophilic Anaer Dig
To Land Application
Centrifuge Dew atering
Lime Stabilization
To Land Application
Thickened Sludge
Thickened Sludge
Centrifuge Dew atering
Thickened Sludge
Acid-Gas Anaer Dig
CentrifugeDew atering
To Land Application
Thickened Sludge
Centrifuge Dew atering
Drying Vitrif icationGlass
Aggregate
Auto Thermal Aerobic Dig
Temp Phased Anaer Dig
To Land Application
Thickened Sludge
Centrifuge Dew atering
To Land Application
Centrifuge Dew atering
Composting To Land Application
Thickened Sludge
Thickened Sludge
Centrifuge Dew atering
To Landfill
Thickened Sludge SlurryCarb
Centrifuge Dew atering
Fuel
Temp Phased Anaer Dig (Eggs)
To Land Application
Thickened Sludge
Centrifuge Dew atering
Temp Phased Anaer Dig (Pancakes)
To Land Application
Thickened Sludge
Centrifuge Dew atering
Thickened Sludge
Mesophilic Anaer Dig (Primary)
Centrifuge Dew atering
Drying To Land Application
Thermophilic Anaer Dig
To Land Application
Thickened Sludge
Centrifuge Dew atering
Mesophilic Anaer Dig
To Land Application
Thickened Sludge
Centrifuge Dew atering
EPA Process/Technology
Classification
EPA Process/Technology
Classification• Embryonic: Technologies that are in the development stage and/or have been tested at laboratory or bench scale;
New technologies that have reached the demonstration stage overseas, but not yet considered to be established there or in North America
• Innovative:Technologies that meet one of the following criteria: Have been tested as a full-scale demonstration; Have been implemented in the U.S. for less than five years; Have some degree of initial use (i.e. implemented in < 25 plants in the U.S. Established technologies from overseas.
• Established: Processes that are used at >25 full-scale facilities in North America; Technologies that are widely used but introduced only recently in North America.
An established technology (e.g., Anaerobic Digestion) that may have been modified or adapted resulting in a new, innovative technology such as Thermally Phased Anaerobic Digestion (TPAD)
• Embryonic: Technologies that are in the development stage and/or have been tested at laboratory or bench scale;
New technologies that have reached the demonstration stage overseas, but not yet considered to be established there or in North America
• Innovative:Technologies that meet one of the following criteria: Have been tested as a full-scale demonstration; Have been implemented in the U.S. for less than five years; Have some degree of initial use (i.e. implemented in < 25 plants in the U.S. Established technologies from overseas.
• Established: Processes that are used at >25 full-scale facilities in North America; Technologies that are widely used but introduced only recently in North America.
An established technology (e.g., Anaerobic Digestion) that may have been modified or adapted resulting in a new, innovative technology such as Thermally Phased Anaerobic Digestion (TPAD)
Evaluation CriteriaScoring Scheme and Weighting Factors
Evaluation CriteriaScoring Scheme and Weighting Factors
Score Weight• Capital and O&M Cost
Present Worth – Equivalent Annual Cost 0 – 5 40
• Process Reliability 0 – 5 10 Ease of Operations 0 – 5 5 Ease of Maintenance 0 – 5 10
• Implementation Construction Duration 0 – 5 5 Air Quality Impacts 0 – 5 2 Ease of Implementation 0 – 5 2 Ease of Permitting 0 – 5 2 Compatibility with Existing Facilities 0 – 5 2 Public Perception 0 – 5 2
• End Product Acceptability/Marketability 0 – 5 8 Sustainability/Risk 0 – 5 8 Diversification (Class A) 0 – 5 4
Score Weight• Capital and O&M Cost
Present Worth – Equivalent Annual Cost 0 – 5 40
• Process Reliability 0 – 5 10 Ease of Operations 0 – 5 5 Ease of Maintenance 0 – 5 10
• Implementation Construction Duration 0 – 5 5 Air Quality Impacts 0 – 5 2 Ease of Implementation 0 – 5 2 Ease of Permitting 0 – 5 2 Compatibility with Existing Facilities 0 – 5 2 Public Perception 0 – 5 2
• End Product Acceptability/Marketability 0 – 5 8 Sustainability/Risk 0 – 5 8 Diversification (Class A) 0 – 5 4
Criteria DefinitionII: Process
Criteria DefinitionII: Process
• Process Reliability:Existing operational experience at past or present installations for producing the desired output from the technology as designed and when being operated within the specified conditions.
• Ease of Operation:Level of skill that Blue Plains operations staff is required to have in order operate the technology effectively
• Ease of Maintenance:Level of skill that existing Blue Plains staff is required to have in order to maintain the process systems and equipment
• Process Reliability:Existing operational experience at past or present installations for producing the desired output from the technology as designed and when being operated within the specified conditions.
• Ease of Operation:Level of skill that Blue Plains operations staff is required to have in order operate the technology effectively
• Ease of Maintenance:Level of skill that existing Blue Plains staff is required to have in order to maintain the process systems and equipment
Criteria DefinitionIII: Implementation
Criteria DefinitionIII: Implementation
• Construction Timeframe:The time required to construct the process or install the technology and associated appurtenances, including testing and acceptance for full service operation.
• Air Quality Impacts:The impacts of air emissions released from the process to the atmosphere (after application of appropriate air pollution control technologies), that might adversely impact air quality and affect the ability of the plant to comply with its Title V air permit limits.
• Ease of Implementation:The time and effort required to fully implement the process at Blue Plains including project delivery options (DB, DBO), space limitations and site constraints
• Construction Timeframe:The time required to construct the process or install the technology and associated appurtenances, including testing and acceptance for full service operation.
• Air Quality Impacts:The impacts of air emissions released from the process to the atmosphere (after application of appropriate air pollution control technologies), that might adversely impact air quality and affect the ability of the plant to comply with its Title V air permit limits.
• Ease of Implementation:The time and effort required to fully implement the process at Blue Plains including project delivery options (DB, DBO), space limitations and site constraints
Criteria DefinitionIII: Implementation
Criteria DefinitionIII: Implementation
• Ease of Permitting:The ease of compliance with permitting requirements, the complexity of the permitting process, and the level of effort and time required to obtain all required regulatory permits and approvals
• Compatibility with Blue Plains:The ease with which the process can be integrated with the existing onsite processes and technologies with minimal short-term and long-term impacts on existing operations. This includes operation and maintenance requirements, special staff skills, and training needs.
• Public Perception:The public’s perception of the process in terms of overall aesthetics; potential for odor, noise, and traffic impacts; potential for beneficial reuse, energy production, and eco-friendliness.
• Ease of Permitting:The ease of compliance with permitting requirements, the complexity of the permitting process, and the level of effort and time required to obtain all required regulatory permits and approvals
• Compatibility with Blue Plains:The ease with which the process can be integrated with the existing onsite processes and technologies with minimal short-term and long-term impacts on existing operations. This includes operation and maintenance requirements, special staff skills, and training needs.
• Public Perception:The public’s perception of the process in terms of overall aesthetics; potential for odor, noise, and traffic impacts; potential for beneficial reuse, energy production, and eco-friendliness.
Criteria DefinitionIV: End Product
Criteria DefinitionIV: End Product
• Product Marketability/Acceptability:Marketability: The potential to give away or derive revenue through sales, marketing and distribution of the end product.
Acceptability: The public’s level of acceptance of the product including odor potential.
• Ease of Diversification:The ease with which the product can be managed through multiple outlets to minimize risk to WASA.
• Risk/Sustainability:The potential risks associated with future federal, state or local regulations that might restrict or ban the use of the product.
• Product Marketability/Acceptability:Marketability: The potential to give away or derive revenue through sales, marketing and distribution of the end product.
Acceptability: The public’s level of acceptance of the product including odor potential.
• Ease of Diversification:The ease with which the product can be managed through multiple outlets to minimize risk to WASA.
• Risk/Sustainability:The potential risks associated with future federal, state or local regulations that might restrict or ban the use of the product.