WasteWater Education specializes in providing Continuing/Professional Education Classes on line.

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Risk Management Approach used for On-site Wastewater System Accreditation in Australia

On-site and Decentralized Wastewater Modelling

Models are used in the design of on-site and decentralized wastewater treatment systems to determine the size of the treatment unit and dispersal area, as well as, the potential impacts of nutrient and pathogen run-off from the application area.
There are a wide variety of models used in the on-site wastewater industry and this presentation will cover how they can be practically applied.
It is very important to correctly size treatment units and application areas.
Models that determine the flow of domestic and commercial wastewater generation volumes will be discussed. This will also include how water efficient infrastructure, such as dual flush toilets, can concentrate wastewater flows and impact on treatment performance.
Models that examine the impact of different dispersal techniques will also be examined.
Models will be demonstrated that show how application method, such as gravity versus pressurized, influences how nutrients (nitrogen and phosphorus) move through the soil and potentially impact ground and surface waters. The influence of soil type and texture will also be discussed.
Models that predict the log reductions of potential pathogens through treatment units and dispersal areas will also be examined. The aim of this presentation is to provide on-site wastewater designers and installers with a knowledge of the different types of relevant models and how they can be practically applied.
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Jim Kelly has more than 40 years experience in recycled water, wastewater treatment and agribusiness.

Jim is recognized nationally and internationally for his research and knowledge in the beneficial management and use of recycled water projects. Jim's extensive knowledge on risk assessment and how it is applied to the reuse of treated water has helped developed a wide range of guidelines, regulations and associated publications.
Learning Objectives
At the conclusion of this presentation the attendee will be able to use models to determine the inflow wastewater volume of on-site and decentralized wastewater treatment systems.
The attendee will be able to discuss how models can be used to predict nutrient (nitrogen and phosphorus) discharge from on on-site system into the soil and groundwater.
The attendee will be able to describe how models can be used to determine decreases (log reductions) in potential pathogens.
The attendees will recognize the benefits and limitations of various models and be aware of the importance of ground-truthing models with real data.

Independent. Impartial. We provide access to information to empower sustainable, local, wastewater decision making.

Our Purpose
To provide education which increases public awareness of the link between clean drinking water, safe recreational waters, environmentally sustainable surface and groundwater with watershed based, best management practices related to appropriate wastewater systems, technology, treatment and management.

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