scholarly journals A Preliminary Sustainability Analysis of Producing Class A Biosolids with Conventional and Low-Cost, Low-Tech Processes

2019 ◽  
Author(s):  
Janna Brown
Keyword(s):  
Low Cost ◽  
Class A ◽  
Sustainability Analysis ◽  
Class A Biosolids

Class A Biosolids Production by a Low-Cost Conventional Technology

2000 ◽  
Vol 72 (4) ◽  
pp. 413-422 ◽  
Author(s):  
Prakasam Tata ◽  
Cecil Lue-Hing ◽  
James J. Bertucci ◽  
Salvador J. Sedita ◽  
George J. Knafl
Keyword(s):  
Low Cost ◽  
Class A ◽  
Conventional Technology ◽  
Class A Biosolids

PRE–PASTEURISATION AND ANAEROBIC DIGESTION A Low Cost Route to Class A Biosolids

2000 ◽  
Vol 2000 (9) ◽  
pp. 523-543
Author(s):  
Colin Brade ◽  
Dorian Harrison ◽  
Aidan Cumiskey ◽  
Mick Dawson
Keyword(s):  
Anaerobic Digestion ◽  
Low Cost ◽  
Class A ◽  
Class A Biosolids

Pilot Scale Evaluation of a Two-Stage, Low-Cost Low-Tech Class A Biosolids Treatment Process

2018 ◽  
Vol 2018 (4) ◽  
pp. 1132-1142
Author(s):  
Karina Eyre ◽  
Tanner Keyzers ◽  
Jennifer G Becker ◽  
Eric A Seagren ◽  
Christa Meingast
Keyword(s):  
Treatment Process ◽  
Low Cost ◽  
Pilot Scale ◽  
Two Stage ◽  
Scale Evaluation ◽  
Class A ◽  
Class A Biosolids

Single-stage Sequencing Batch Process for Producing Class A Biosolids from AD Effluent at Terminal Island Treatment Plant

2006 ◽  
Vol 1 (4) ◽  
Author(s):  
Huub H.J. Cox ◽  
Steve Fan ◽  
Reza Iranpour
Keyword(s):  
Fecal Coliform ◽  
Treatment Plant ◽  
Batch Process ◽  
Single Stage ◽  
Fecal Coliforms ◽  
Class A ◽  
Truck Loading ◽  
Train Operation ◽  
Plant Control ◽  
Class A Biosolids

Terminal Island Treatment Plant converted its digesters to thermophilic operation with the objective to comply with the U.S. EPA Part 503 Biosolids Rule requirements for Class A biosolids. The following processes were tested: a) single-stage continuous; b) two-stage continuous; c) single-stage sequencing batch. Salmonella sp. were always non-detect in digester outflows (<3 MPN/4 g dry wt), whereas fecal coliform densities were usually below the Class A limit of 1000 MPN/g dry wt. However, the recurrence of fecal coliforms in post-digestion caused non-compliance with the Class A limit at the truck loading facility as the last point of plant control for compliance. After several design modifications of the post-digestion train, operation of the digesters as sequencing batch digesters according to the time-temperature requirement of Alternative 1 of the Part 503 Biosolids Rule achieved compliance for both Salmonella sp. and fecal coliforms at the last point of plant control (truck loading facility).

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