Water Practice Case StudyWastewater Plant Upgrades in the NE Bay AreaOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (Therms)Main Problems Lighting HVAC Pumping equipment Compressed air Overview Plant Type Primary Treatment (Flocculation and Sedimentation) Plant Size (MGD) 20 The AESC team was invited to this drinking water treatment facility to perform a detailed integrated energy audit…
Water Practice Case StudyWastewater Plant in South Central ArizonaOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Non-automated control systems Aging infrastructure and deferred maintenance Overview Plant Type Activated Sludge Plant Size (MGD) 203 AESC coordinated, prepared for, and participated in an on-site launch meeting with this agency’s senior staff. AESC supported the delivery of…
Water Practice Case StudyWastewater Plant Upgrades in Southern California – Project 2Outcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Non-automated control systems Excessive hydrogen sulfide generation in collection system and mitigation activities Overview Plant Type Activated Sludge Plant Size (MGD) 15 The AESC team was invited to this wastewater agency to develop a city-wide…
Water Practice Case StudyWastewater Plant in ArizonaOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Higher strength sewage as a result of changing domestic habits and manufacturing trends due to COVID-19 Challenges with consistent aeration throughout treatment plant Overview Plant Type Activated Sludge Plant Size (MGD) 63 AESC coordinated, prepared for, and participated in an…
Water Practice Case StudyWastewater Plant in Central Coastal CaliforniaOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)0Proposed Savings (Therms)Main Problems Inefficient performance of trickling filter Inefficient operation of digester leading to excessive natural gas purchases to augment biomethane Critical pump station electrical system failures Overview Plant Type Trickling Filter Plant Size (MGD) 30 The AESC team…
Water Practice Case StudyWastewater Plant Upgrades in Southern California – Project 1Outcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Change TD to Trickling Filter Low ultraviolet (UV) transmissivity causing excessive energy consumption Overview Plant Type Trickling Filter Denite Filters UV Disinfection Plant Size (MGD) 1.53 AESC partnered with a design engineering firm to assist…
Water Practice Case StudyWastewater Plant Upgrades in the Eastern Sierras CaliforniaOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Inefficient aeration Total absence of automated process control and operation Sludge disposal Overview Plant Type Activated Sludge Process (with Mixed Flow Aeration) Plant Size (MGD) 1 AESC was tasked with identifying ways to improve this treatment…
Water Practice Case StudyWastewater Plant Upgrades in Eastern Sierra Mountain RegionOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Excessive aeration Excessive recirculation of activated sludge Sludge disposal Overview Plant Type Activated Sludge (with Plug Flow Aeration) Plant Size (MGD) 0.176 The AESC team worked to improve this treatment plant’s energy efficiency while mitigating risk,…
Water Practice Case StudyWater Plant in SoCal DesertOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Non-automated control systems Trihalomethanes (THM) Overview Plant Type Class III conventional water treatment plant Plant Size (MGD) 2 The AESC team evaluated three categories of cost savings opportunities including operational measures, energy efficiency, and energy supply measures. The team…
Water Practice Case StudyWastewater Plant in Central CaliforniaOutcomes$0Total Cost Savings Identified0Proposed Savings (kWh)0Proposed Savings (kW)Main Problems Organic capacity constraints Influent loading control Overview Plant Type Activated Sludge Trickling Filter Plant Size (MGD) 19.5 The AESC team was invited to a large wastewater recycle facility to conduct an evaluation and develop a list of energy savings…
