Science & Technology

Fact Sheet: Land Application of Biosolids

Recycling biosolids through land application serves several purposes. It improves soil properties, such as texture and water holding capacity, which make conditions more favorable for root growth and increases the drought tolerance of vegetation.

Fact Sheet: In-Vessel Composting of Biosolids

In-vessel composting occurs within a contained vessel, enabling the operator to maintain closer control over the process in comparison with other
composting methods.

Fact Sheet: Alkaline Stabilization of Biosolids

Stabilization of biosolids helps to minimize the potential for odor generation, destroys pathogens (disease causing organisms), and reduces the material’s vector attraction potential.

Fact Sheet: Belt Filter Press

Belt filter presses can be used to dewater most biosolids generated at municipal wastewater treatment plants and are a common type of mechanical dewatering equipment.

Fact Sheet: Centrifuge Thickening and Dewatering

Dewatering removes water and produces a drier material referred to as “cake” which varies in consistency.

Fact Sheet: Multi-Stage Anaerobic Digestion

Multi-stage anaerobic digestion can achieve superior performance relative to single-stage conventional digestion for most wastewater solids
and for all loading rates.

Fact Sheet: Use of Composting for Biosolids Management

Biosolids Technology Fact Sheet on Use of Composting of Biosolids Management

Fact Sheet: Gravity Thickening

Fact sheet regarding thickening of solids

Domestic Septage Regulatory Guidance: A Guide to the EPA 503 Rule

Agricultural Land, Forests, and Reclamation Sites; Discussed in Relationship to Existing State Rules and Other Federal Regulations of Septage

Biosolids Recycling: Beneficial Technology for a Better Environment

This booklet briefly discusses important aspects of the Part 503 Standards for the Use or Disposal of Sewage Sludge

Hazardous Waste Clean-Up Information (CLU-IN) On-line Characterization and Remediation Databases Fact Sheet

This fact sheet provides an overview of the 10 on-line characterization and remediation databases available on the Hazardous Waste Clean-Up Information (CLU-IN) website sponsored by the U.S. Environmental Protection Agency.

Interactive Version of the Gasoline Vehicle Label

Interactive gasoline vehicle fuel economy label displays and details.

Interactive Version of the Plug-in Hybrid Electric Vehicle Label

Interactive version of the plug-in hybrid vehicle electricity-gasoline fuel economy label displays and details.

Kit Car Policy

EPA's policy concerning the regulation of imported and domestically produced kit cars and kit car packages.