Bell Engineering



FRIDAY, August 18, 2011 12:00

wastewater system engineering

"Dirty Water" - For nearly 100 years, Bell Engineering has been helping communities manage the complexities of wastewater treatment and collection. Decades of experience have taught us how to assist communities in finding safe, efficient and environmentally sound ways to manage water resources. Working hand-in-hand with management and operations staff, we create practical plans for cost-effective projects. We deliver tailored wastewater solutions and creative ideas that save our clients time and money.

Bell's team can evaluate existing systems to identify infiltration and inflow problems, determine how to design a minimal maintenance collection system, recommend the types of treatment plants that work best for different conditions and identify where to look for hydraulic flow issues. Our team is professional and has the technical knowledge necessary to complete complex projects with aggressive schedules. Bell is dedicated to remaining current in all treatment and collection system technology ensuring your community's peace of mind. We are committed to quality work and 100% client satisfaction. Bell Engineering offers a full range of engineering services for wastewater systems.

We also provide analysis of existing wastewater treatment facilities to assess their ability to meet long-term discharge requirements, wastewater treatment facility design, treatment system master planning, collection system capacity analysis, compliance with CMOM requirements, wastewater collection system design, pump station design and general assistance with daily operations.

wastewater treatment facilities
Clean, safe water is the foundation of our communities. Bell Engineering understands the challenges and constraints that new regulations and community growth can place on your wastewater systems. Discharge limits are becoming more stringent for nutrients such as nitrogen and phosphorus, causing operational costs to rise as utilities must meet additional permit requirements. Our engineers are skilled in maximizing the use of existing structures and equipment and utilizing careful project construction sequencing to keep plants in service during the phase-in of new facilities.

We have expertise in wastewater collection, treatment and distribution. Our staff has designed and constructed facilities utilizing a variety of treatment techniques including: membrane bioreactors, activated sludge, ultraviolet disinfection, lagoon systems and oxidation ditches. Using our thorough understanding of wastewater biology and different treatment systems, we can assist your community in treating your wastewater and returning it to the environment in the cleanest, most efficient and safest manner for your specific conditions.

collection systems
Sewage pollution is a community problem that has an adverse effect on the health and welfare of everyone exposed to it. A problem that has the potential to stifle development and make entire regions less appealing places to live, work or visit. Sanitary sewer systems are designed to ensure the safe collection and transportation of wastewater within a service area. Design considerations include pipe size, pump station capacity, operation under emergency conditions and provisions for proper odor control.

Bell Engineering provides design services for collection systems of all sizes. Projects include expanding service into un-sewered areas and rehabilitation of existing systems. Rehabilitation may be necessary in order to eliminate overflows of raw sewage that occur as a result of the age or condition of the existing system. Rehabilitation can also eliminate sources of Inflow and Infiltration, potentially reducing the need to expand existing treatment facilities offering a significant cost savings. Our staff can evaluate your system and develop the best plan of action to cost effectively meet your needs.

pump stations
The Bell team is capable of providing engineering services on pump stations of all sizes, small and large scale, including new construction or rehab. Our team has been involved in projects ranging from a few hundred gallons per minute to 24 million gallons per day. We are familiar with these projects not only from a design perspective dealing with varying head and flow conditions, but also from in-field procedures dealing with easement acquisition and property appraisal. Our team has designed and constructed diesel engine, electric motor-operated, horizontal centrifugal, split-case and vertical turbine pumps. Bell specializes in working on existing sites where a minimal footprint is required due to limited room for new equipment and construction materials. Our staff have designed pump stations for raw water, treated water and stormwater in addition to wastewater. Projects have also included built-in flow metering equipment, surge control equipment, flood control and telemetry including SCADA. Each design is undertaken to meet your specific requirements and blend seamlessly into the surrounding environment. Our team thinks outside the box to accommodate our client's needs, schedule and budget.

Storm and sewer modeling technologies are now significantly more capable than ever before. These advances in technology, while beneficial, have also made the modeling process more complex. Bell understands the complexities that come with building and operating a system model along with how things such as project cost and scope can be affected. Our firm has a number of different modeling softwares available in-house along with staff trained in the use of each program. From simple EPA SWMM models to in-depth Innovyze InfoWorks CS 3D models incorporating overland flows, we can help you find the program that best suits your needs.

Our extensive experience in flow monitoring provides insight into model calibration, providing a tool that allows clients to benefit from predictive analysis. Multiple scenarios can be run simultaneously and can include control structures and pump station operations. Modeling results are also used to help clients prepare capital planning budgets and schedules, providing unprecedented access to system data and improvement impacts.

Capacity, Management, Operation and Maintenance (CMOM) Programs ensure that communities have adequate wastewater collection capacity, improve the operation and performance of the municipal sanitary sewer collection system, evaluate areas of excessive inflow of precipitation or groundwater into the system and identify maintenance and repairs needed to prevent problems. The result is a reduction in the frequency and occurrence of sanitary sewer overflows and basement backups and more effective public notification when overflows do occur. As more communities find themselves subject to EPA Consent Decrees to remediate sanitary sewer overflows, Bell Engineering is equipped to help clients with the development and implementation of a CMOM Program to satisfy Consent Decree requirements.

Our staff have authored program documents and edited existing documents submitted to the EPA for approval. We assist clients with the development, submission and implementation of plans for continued improvements of wastewater collection and transmission systems and with elimination of SSO's and unpermitted bypasses. Additionally, we offer in-house modeling services to assess and certify system capacity for proposed connections to the sewer system. A functioning model of your sewer system is a very useful tool for simulating and identifying real-time conditions under specific parameters. Also, as data is collected, a determination can be made as to whether or not additional sewer connections can be accommodated without causing overflows.

sewer system evaluation survey (SSES)
Maintaining the structural integrity of a sanitary sewer system for reliable wastewater transportation is an ongoing part of asset management. Bell understands that today's system owners are required to assess collection systems for purposes that far exceed integrity alone. Reduction of Inflow and Infiltration can greatly reduce the hydraulic loading, lowering capital costs, reducing operation and maintenance and extending the value of current physical assets. Bell utilizes the most recent technological advances in high-resolution CCTV data, analytical software and field knowledge to produce SSES plans for clients that help to achieve the best application of financial resources. From physical inspection of manholes to smoke testing, dye water flooding and uniform coding of defects, Bell offers a full range of SSES services to help you monitor and upgrade your collection system.

sanitation standard operating procedures (SSOP's)
Budgeting and planning for necessary infrastructure improvements and upgrades is a key step in ensuring you achieve the maximum usable life of your sanitary sewer system. From pump stations to lines to facilities, prioritizing projects based on need, expense and impact can serve as a guide to help you stay ahead of potential disasters and changing regulations. An SSOP is a document that identifies capital projects needed to transport wastewater flows and eliminate sanitary sewer overflows. The staff at Bell have developed SSOP's for a wide variety of clients, helping them define the schedule and budget of each needed project.

flow monitoring
Flow monitoring establishes the basis for all sanitary and storm sewer rehabilitation efforts. Our staff is trained in the use of flow monitoring equipment and has years of experience in the analysis of collected data. We provide turn-key operations including monitoring program assessment and design, equipment selection and procurement, installation, calibration, maintenance and data collection. Bell owns cell-modem equipped flow monitors and can host or provide internet accessible database server management. Through a secure webpage maintained by Bell, clients can share in near real-time access to flow and rainfall data within the system. Bell can provide an immediate response to equipment alarms, such as low battery notices or clogged sensors, greatly reducing missed opportunities during the field data collection process. Additionally, with access to the data in real-time, analysis and report turnaround times are much faster.