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Biological Wastewater Treatment II - MBBR Processes

This webinar has not been scheduled yet.
Biological Wastewater Treatment II - MBBR Processes
Course Highlights

This engineering online PDH live webinar will establish, through slides, discussions and detailed examples of process design calculations for the following types of MBBR systems: single stage BOD removal, two stage BOD removal, single stage nitrification, two-stage BOD removal/nitrification, post-anoxic denitrification, and pre-anoxic denitrification.


The MBBR (moving bed biofilm reactor) process is an attached growth process that uses plastic carriers to provide a surface on which biofilm grows.  The plastic carriers are kept suspended in the aeration tank by an aerator for an aerobic process or by mechanical mixing for an anoxic or anaerobic process.  The MBBR process doesn’t require sludge recycle because the biomass remains in the system attached to the plastic carriers.  The required reactor size for an MBBR process is typically significantly smaller than that for an activated sludge process treating the same wastewater flow or for other common attached growth processes like the RBC or trickling filter.  It can be used for BOD removal, biological nitrification, biological denitrification, and biological phosphorus removal. 


This 4 PDH online live webinar is intended primarily for civil, environmental and chemical engineers.  After completing this webinar, you will be familiar with the general components and configuration of an MBBR wastewater treatment process and be able to make typical process design calculations for an MBBR process.
Learning Objectives

This live webinar is intended to provide you with the following specific knowledge and skills:

  • Knowing the differences between attached growth and suspended growth biological wastewater treatment systems
  • Familiarizing with the components of and general configuration of an MBBR wastewater treatment system
  • Learning how to calculate the loading rate of a wastewater constituent to an MBBR process (in lb/day and g/day) for a specified wastewater flow rate and constituent concentration
  • Learning how to calculate the required carrier surface area for an MBBR wastewater treatment process for a specified SALR and loading rate
  • Learning how to calculate the required MBBR tank volume for specified carrier surface area, carrier specific surface area, and carrier fill %
  • Learning how to calculate the liquid volume in an MBBR tank for known tank volume, carrier volume and carrier % void space
  • Learning how to calculate the BOD, NH3-N or NO3-N removal rate for known values of the surface area removal rate (SARR) and design carrier surface area
  • Learning how to calculate an estimated effluent BOD, NH3-N, or NO3-N concentration based on known values of the appropriate loading rate, estimated removal rate, and design wastewater flow rate
  • Understanding how to make process design calculations for a post-anoxic denitrification MBBR process, including required tank sizes, estimated effluent concentrations, alkalinity requirements, and carbon source requirements
  • Understanding how to make process design calculations for a pre-anoxic denitrification MBBR process, including required tank sizes, estimated effluent concentrations, and alkalinity requirements


How it works

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Webinar Registration

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We recommend that you register for any webinar ahead of time, although you can still register online up to the start time of the webinar. If you need any assistance with last minute webinar registrations, please contact us at 877-322-5800.

Webinar Access

From the webinar access and completion instructions that you receive, you will be provided with a link to access the webinar platform from your computer to view the pesentation as well as listen to and interact with the instructor. Therefore, to get connected, you will need a computer with high-speed internet as well as microphone and speaker capabilities. We recommend using a headset connected to your computer for enhanced audio quality.

Alternatively, if your computer is not equipped with a microphone and speakers, you need to dial in using a phone line. From the webinar access and completion instructions, you will be also provided with a dial-in number to join the webinar and listen in. Furthermore, you will be provided with a link to download the webinar handout, or you can download it directly from you account, in the event you are unable to view the webinar on your computer screen.

Regardless of the connection method used, you will have the opportunity to interact with the instructor at the appropriate times either way. We recommend that you connect to the webinar approximately 10 to 15 minutes prior to the scheduled start time.

Certificate of Completion (PDH Credit)

Following attending the webinar, you need to return to the website and log in to your account to complete and submit the feedback form. Once submitted, we will email you your Certificate of Completion. You can also download it instantly, or at anytime, from your account where all your PDH records are kept for your convenience at all times.

PDH Accredited Webinars (including IA, NE, NY, OH and WI) live interactive webinars are accepted for PDH or CEU credit by all State Licensing Boards (including IA, NE, NY, OH and WI) mandating continuing professional competency, as they are prepared in compliance with the requirements of all State Licensing Boards. For additional details, please refer to your State Requirements.

Our PDH or CEU accredited webinars are developed and conducted by subject matter experts experienced in their field of practice. Our webinars are designed as live interactive web-conferences allowing you the opportunity to fully interact with the instructor at any time during the webinar from the convenience of your home, office or anywhere using your computer or mobile device.

Webinar Cancellation

If you register but you cannot attend due to unforeseen circumstances, we will issue a full refund if you notify us of your cancellation 24 hours in advance. If you must cancel in less than 24 hours, we will exchange it with another webinar of equal value that you select and attend at a date of your convenience. There is no expiration to your purchase so you don’t have to worry.

Group Webinars

If you have seven (7) or more engineers interested in attending the same webinar, we encourage you to enroll in our Group Webinar Program and purchase the one of interest to maximize your savings. Our webinars cover a variety of engineering and ethical topics and are presented by subject matter experts distinguished by their many years of practical engineering experience and academic standings.

If you need any additional information on our Group Webinar Program, please contact us at 877-322-5800 or email us

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