Tag: Dennis F. Hallahan

Best Practices for Designing Large Wastewater Treatment Systems

By Dennis F. Hallahan, PE, Determining the optimum wastewater treatment system design can be complicated particularly in sensitive watershed areas or where fluctuating daily flows...

Protecting the Soil – Best Construction Practices for Large Decentralized Wastewater Treatment Systems

By Dennis F. Hallahan, PE Introduction Good onsite wastewater treatment combines proper soils evaluation, siting, selection of the most effective product, and installation best practices regardless...

Decentralized Wastewater Treatment Approaches Meet Community Treatment and Large Commercial System Demands

By Dennis F. Hallahan, PE and Donald Prince Introduction Two general methods are considered for wastewater treatment planning and design: centralized and decentralized models. As environmental...

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