What do you know about the various activated sludge configurations currently used, available, and evolving for activated sludge, BNR, and ENR processes? The objective of this class is to give activated sludge plant operators a more in-depth understanding of the activated sludge process. With this understanding, effluent quality variability and process energy usage can be reduced. Topics to be presented include: wastewater characterization, biological N & P removal, the importance of sludge quality, measuring and controlling sludge quality, WAS flow control, RAS flow optimization, secondary clarifier performance diagnostic testing. Specifically, types of aeration diffusers (mechanical, fine bubble, and membranes) and blowers (positive, multistage, single stage, and high speed) will be addressed. The influence of MCRT and MLSS will also be addressed as to the efficiency, ease (or difficulty) and cost of aeration. Finally, helpful operating hints will be provided based on experiences from operating facilities.
This course is designed for anyone dealing with permit required confined spaces including safety professionals, emergency personnel, firefighters, sanitary engineers, public works personnel, chemical workers, maintenance staff and waste water treatment employees.
This course teaches participants the regulations, procedures, and practices to work safely in spaces defined by OSHA as permit required confined spaces. This course is designed to teach the worker to recognize the spaces and their hazards, recognize the health effects of exposure, testing procedures for atmospheric monitoring, proper selection and use of PPE, and the duties and responsibilities for the confined space entrants, attendants and supervisors. Training meets OSHA29 CFR1910.146 standards. Topics include:
Recognizing Permit Space Hazards
Confined Space Entry/Permits
Protective Equipment for Entry
Duties of Entrant/Attendants/Supervisors
Hands on Training/Equipment Use. Senior adult and disabled retiree course fee waivers apply. Transcript available.
This course is designed for construction workers, foremen, job supervisors and anyone involved in the construction industry. OSHA recommends the 10-hour construction outreach training program as an orientation to occupational safety and health for workers covered by OSHA 29 CFR 1926. Workers must receive additional training, when required by OSHA standards, on the specific hazards of the job. Training topics include Introduction to OSHA; General Safety & Health Provisions; Electrical; Fall Protection; Personal Protective & Lifesaving Equipment;
Materials Handling, Storage, Use & Disposal; Hand & Power Tools; Scaffolds,
Cranes, Derricks, Hoists, Elevators & Conveyors; Excavations; Stairways & Ladders. Senior adult and disabled retiree course fee waivers apply. Transcript available.
8:00 AM - 1:00 PM
8:00 AM - 1:00 PM
Preparation for Refrigerant Recovery Certification
Learn about the regulations, procedures and equipment that apply to refrigerant recovery, reclaiming and recycling in accordance with the Environmental Protection Agency (EPA) certification standards. Senior adult and disabled retiree course fee waivers apply. Transcript available.
Operators and superintendents must recognize many of the common Standard Practices used at water and wastewater systems today can lead to a potential catastrophic issue at their facilities. This course looks at some of these issues, where if not addressed, can ultimately lead to events that potentially cause bodily harm or even kill operators and customers if not effectively addressed. First, we will look at the results of lack of verification of even the very basic chemicals delivered to our facilities, document case histories where events have occurred, and show system personnel how simple and easy a verification program is to establish. Next, we will address operational issues such as the laboratory result where the Pink-Red color that develops in the DPD Chlorine test, but is not chlorine; and what operations personnel can to do to mitigate these issues. Additionally, learn why the Infrastructure Age requires extra vigilance to prevent system contamination. Even with backflow prevention, the fact remains that a garden hose is still the number one potential contamination source for water systems. We will discuss why water stagnation and biofilm formation can lead to bacterial contamination and how operations can minimize these issues with simple low-cost steps.
This course is intended for Intermediate level operators working at activated sludge wastewater treatment plants of all sizes and types. Operational parameters and design standards normally used for process control and troubleshooting will be discussed, along with how they are used to evaluate and monitor treatment units and processes. Participants will be given worksheets for calculating PPD loadings, F/M, sludge age, and MCRT along with several process control examples to complete in class. During the last part of the class, participants will be divided into teams to complete at least two process control assignments using the tools and skills taught earlier in the class. Nutrient removal will be discussed, but the focus will be on utilizing operational parameters and design standards for process control. The course will cover flow-through and batch processing activated sludge treatment processes. Participants are encouraged to discuss actual plant problems or know case studies. Each participant should bring a calculator to this class.
1) Identify operational paramaters;
2) Calculate pounds per day loadings, food to microorganism ratio, sludge age and mean cell resident time;
3) Describe the nutrient removal process; and
4) Utilize process control standards.
Wastewater operators need to have practical knowledge for dealing with sludge thickening and dewatering. In this course, students will analyze the characteristics of primary, secondary, and chemical sludge and the types of treatment processes used for each. Topics covered will include gravity thickening, dissolved air floatation, centrifuge operation, gravity belt, and belt filter presses, and vacuum filters. Each participant should bring a calculator to this course.
8:00 AM - 4:00 PM
Join the conversation on social media:
Also, visit our events site:
Harford Community College
401 Thomas Run Road
Bel Air, MD 21015