Science & Technology

Sterigenics Willowbrook Facility - Summary of U.S. EPA's Risk Assessment

Summary of the risk assessment for ethylene oxide emissions in Willowbrook, IL

Research Grants Guidance and Policies

These pages are designed to assist prospective applicants as well as recent recipients by conveying key documents that describe the quality assurance, reporting requirements, forms, and FAQs for the NCER STAR grant application and implementation process.

The Clean Air Act and the Economy

Since 1970, cleaner air and a growing economy have gone hand in hand. The Act has created market opportunities that have helped to inspire innovation in cleaner technologies for which the United States has become a global market leader.

Examples of Equivalent Processes: PFRP and PSRP

Equivalent Processes: PFRP and PSRP

Fact Sheet: Recessed-Plate Filter Press

Recessed-plate filter presses can be used to dewater most biosolids generated at municipal wastewater treatment plants.

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

Regulatory Exclusions and Alternative Standards for the Recycling of Materials, Solid Wastes and Hazardous Wastes

Determining the Level of Regulation for Hazardous Waste Recycling, Recycled Materials that are not Subject to RCRA Hazardous Waste Regulation, Materials Subject to Alternative Regulatory Controls, Materials Subject to Full Hazardous Waste Regulations.