Utilizing Biosolids on Agricultural Land (E2781)

Biosolids are solid, semisolid and liquid residues generated during the treatment of sanitary sewage, or domestic sewage, in treatment works treating domestic sewage (TWTDS).

Introduction

Biosolids Management Options in Michigan

Landfilled

Surface disposal

Incineration

Land application

Other beneficial uses

Summary

Process of Biosolids Production

Potential Concerns with Land Application

Parasites and pathogens

Heavy metals and trace elements

Organic contaminants

Salts

Radioactive materials

Public acceptability

Regulations on Utilizing Biosolids

Part 503 risk assessment

Pollutant limits

Lifetime biosolids applications

Pathogen reduction

Vector attraction reduction

Organic pollutants

Nutrients

Wildlife and endangered species

Monitoring frequency and state rule prohibition

Additional regulatory restrictions required by Part 24 Rules

Biosolids Quality

Nutrient Value of Biosolids

Nitrogen in biosolids

Phosphorus, potassium and other plant nutrients in biosolids

Establishing and Managing Successful Biosolids Land Application Programs

Site selection and land availability

Determining agronomic rates for biosolids applications

Biosolids application

Monitoring program

Conclusion

References

 

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