Land Farming of Biosolids from a Secondary Wastewater Treatment Plant

1. E-101 Environmental Management I Harvard University Extension School Boston, Massachusetts Land Farming of Biosolids from a Secondary Wastewater Treatment Plant Ceferino Aponte, M.Ch.E.; P.E.

2. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant Land farming of Biosolids from The Barceloneta Regional Wastewater Treatment Plant • The Challenges • Limited Wastewater Treatment Infrastructure • Fast Industrial Development • Industry Government Partnership • The Results • Ecologically and Cost effective Alternative for biosolids reuse • Potential for Application in other areas

3. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant

4. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant Biosolids Disposal The Barceloneta Regional Wastewater Treatment Plant • Options • Landfilling • Incineration • Ocean dumping • Land farming • Path Forward • Initially Landfilling • Phase I Pilot Land Farm Project 1982 - 1987 • Phase II Full Scale Land Farming 1987 - Present

5. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant

6. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant

7. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant

8. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant

9. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant

10. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant Biosolids Disposal The Barceloneta Regional Wastewater Treatment Plant Lessons Learned • 1. Land farming is a very attractive option for biosolids disposal as long as: • A strong pretreatment program is in place • Stakeholders are willing to cooperate ($$) • 2. There is good potential lo extend the experience to use treated effluent for irrigation and groundwater recharge, particularly on the south coast of Puerto Rico.

11. Land Farming of Biosolids from a Secondary Wastewater Treatment Plant