scholarly journals Development and Evaluation of a Dispersion Model to Predict Downwind Concentrations of Particulate Emissions from Land Application of Class B Biosolids in Unstable Conditions

10.5772/29513 ◽  
2011 ◽  
Author(s):  
Abhishek Bhat ◽  
Ashok Kumar ◽  
Kevin Czajkowski
Keyword(s):  
Dispersion Model ◽  
Land Application ◽  
Particulate Emissions ◽  
Class B

Class B Land Application: A Long-term, Highly Successful Public-Private Partnership

2017 ◽  
Vol 2017 (1) ◽  
pp. 1056-1064
Author(s):  
Jake Finlinson ◽  
Dave Ruud ◽  
Andy Bary ◽  
Maile Lono-Batura
Keyword(s):  
Land Application ◽  
Public Private Partnership ◽  
Private Partnership ◽  
Class B

Preliminary evaluation of biosolids characteristics for anaerobic membrane reactors treating municipal wastewaters

2015 ◽  
Vol 72 (8) ◽  
pp. 1446-1454 ◽  
Author(s):  
Qirong Dong ◽  
Martha Dagnew ◽  
Jeff Cumin ◽  
Wayne Parker
Keyword(s):  
Suspended Solids ◽  
Municipal Wastewater ◽  
Nutrient Content ◽  
Pilot Scale ◽  
Land Application ◽  
Membrane Reactors ◽  
Preliminary Evaluation ◽  
Secondary Sludge ◽  
Volatile Solids ◽  
Class B

This study assessed the characteristics of biosolids of a pilot-scale anaerobic membrane bioreactor (AnMBR) treating municipal wastewater. The production of total solids (TS) and volatile solids (VS) was comparable to that reported for the extended aeration system at solids residence time (SRT) longer than 40 days. The yields of TS and VS were reduced as SRT increased from 40 to 100 days and increased with the addition of 26 mg/L of FeCl3. The AnMBR destroyed 60–82% of the VS loading in feed wastewater and hence it was concluded the biosolids met the requirements for vector attraction reduction for land application. The concentrations of volatile suspended solids and total suspended solids in the sludge were less than those reported after anaerobic digestion of conventional primary and secondary sludge mixtures, and hence dewatering of the waste stream may be required for some applications. The nutrient content in terms of total Kjeldahl nitrogen and total phosphorus was similar to that of anaerobically digested municipal sludges. The dewaterability of the biosolids was poorer than that reported for sludges from aerobic treatment and anaerobically digested sludges. Dewaterability was improved by addition of FeCl3 and reduced SRT. The biosolids met standards for land application with regards to the concentration of heavy metals but would need further treatment to meet Class B pathogen indicator criteria.

Sustainability of Land Application of Class B Biosolids

2008 ◽  
Vol 37 (S5) ◽  
pp. S-58-S-67 ◽  
Author(s):  
Ian L. Pepper ◽  
Huruy Zerzghi ◽  
John P. Brooks ◽  
Charles P. Gerba
Keyword(s):  
Land Application ◽  
Class B

scholarly journals Field studies measuring the aerosolization of endotoxin during the land application of Class B biosolids

Aerobiologia ◽  
2017 ◽  
Vol 33 (3) ◽  
pp. 417-434 ◽  
Author(s):  
R. F. Herrmann ◽  
R. J. Grosser ◽  
D. Farrar ◽  
R. B. Brobst
Keyword(s):  
Field Studies ◽  
Land Application ◽  
Class B

Long-Term Effects of Land Application of Class B Biosolids on the Soil Microbial Populations, Pathogens, and Activity

2010 ◽  
Vol 39 (1) ◽  
pp. 402-408 ◽  
Author(s):  
Huruy Zerzghi ◽  
Charles P. Gerba ◽  
John P. Brooks ◽  
Ian L. Pepper
Keyword(s):  
Land Application ◽  
Microbial Populations ◽  
Long Term Effects ◽  
Soil Microbial ◽  
Class B

A Case for the Safety and Sustainability of Class B Biosolids Land Application – Results of Microconstituent and Pathogen Research in Gainesville, FL

2010 ◽  
Vol 2010 (4) ◽  
pp. 1065-1089
Author(s):  
Paul Davis ◽  
Ron Herget ◽  
Rick Hutton ◽  
George Lukasik ◽  
Pat Cline ◽  
...  
Keyword(s):  
Land Application ◽  
Class B

scholarly journals Survey of Wastewater Indicators and Human Pathogen Genomes in Biosolids Produced by Class A and Class B Stabilization Treatments

2008 ◽  
Vol 75 (1) ◽  
pp. 164-174 ◽  
Author(s):  
Emily Viau ◽  
Jordan Peccia
Keyword(s):  
Anaerobic Digestion ◽  
Legionella Pneumophila ◽  
Human Adenovirus ◽  
Land Application ◽  
Fecal Coliforms ◽  
Class A ◽  
Stabilization Methods ◽  
Class B ◽  
Male Specific ◽  
Pathogen Genome

ABSTRACT Accurate modeling of the infectious aerosol risk associated with the land application of biosolids requires an in-depth knowledge of the magnitudes and changes in pathogen concentrations for a variety of class A and class B stabilization methods. The following survey used quantitative PCR (qPCR) and culture assays to detect environmentally resistant bacterial and viral pathogens and biosolid indicator organisms for 36 biosolid grab samples. Biosolids were collected from 14 U.S. states and included 16 class B mesophilic anaerobic digestion (MAD) samples and 20 class A biosolid samples from temperature-phased anaerobic digestion (TPAD), MAD plus composting (COM), and MAD plus heat pelletization processes. The indicator concentrations of fecal coliforms and male-specific coliphages as well as pathogen genome concentrations for human adenovirus species, Legionella pneumophila, Staphylococcus aureus, and Clostridium difficile were significantly lower in the class A samples, and a multivariate analysis of variance ranked the stabilization processes from the lowest pathogen/indicator load to the highest as (i) class A COM, (ii) class A TPAD, and (iii) class B MAD. Human adenovirus genomes were found in 88% of the class B samples and 70 to 100% of the class A samples. L. pneumophila, S. aureus, and C. difficile genomes were detected at the qPCR assay detection limits in 19 to 50% of the class B and class A anaerobic digestion samples, while L. pneumophila was detected in 50% of the class A compost samples. When considering all the stabilization methods, both the fecal coliform and the male-specific coliphage concentrations show a significant linear correlation with the pathogen genome concentrations. This survey provides the necessary pathogen concentrations to add to biosolid aerosol risk and pathogen exposure analyses and clarifies the effectiveness of class A stabilization methods with the pathogen and indicator loads in biosolids.

Determining Pathogen and Indicator Levels in Class B Municipal Organic Residuals Used for Land Application

2015 ◽  
Vol 44 (1) ◽  
pp. 265-274 ◽  
Author(s):  
Eric R. Rhodes ◽  
Laura A. Boczek ◽  
Michael W. Ware ◽  
Mary McKay ◽  
Jill M. Hoelle ◽  
...  
Keyword(s):  
Land Application ◽  
Class B
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