Lactic acid fermentation of human excreta for agricultural application

Nonfiction, Science & Nature, Science, Biological Sciences, Botany, Technology, Agriculture & Animal Husbandry, Environmental Science
Cover of the book Lactic acid fermentation of human excreta for agricultural application by Nadejda Andreev, CRC Press
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: Nadejda Andreev ISBN: 9781351649681
Publisher: CRC Press Publication: November 14, 2017
Imprint: CRC Press Language: English
Author: Nadejda Andreev
ISBN: 9781351649681
Publisher: CRC Press
Publication: November 14, 2017
Imprint: CRC Press
Language: English

Human excreta is a valuable fertilizer for improving soil quality and crop productivity, with a potential to replace or complement the mineral fertilizers. The main challenges related to human excreta regarding agricultural applications are microbial contamination risks, loss of nutrients, and odor issues. Fertilization by lacto-fermented faeces supplemented by biochar has benefits such as improved soil bulk density, nitrate and potassium concentrations as well as the yield and yield components of corn, compared to untreated, simple stored faeces, urine, cattle manure, and unfertilized controls. Even though the mineral fertilizer produced corn with significantly higher height and leaf length, it did not add significantly higher yields than lacto-fermented faeces supplemented by biochar.
A faeces treatment process by combined lacto-fermentation with thermophilic composting and biochar supplementation had better reduction of coliforms, Escherichia coli, Enterococcus faecalis and Clostridium perfringens, and higher germination of radish and growth of tomatoes than combined lacto-fermentation with vermicomposting. Urine lacto-fermentation contributed to a pH reduction below 4, a decrease in the ammonium concentration and odor strength, as well as an increase in the germination rates compared to untreated stored urine.

The results of this study provide important information that can set the basis for scaling up a sustainable technology for the treatment of source separated human excreta while improving its potential for resource recovery.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

Human excreta is a valuable fertilizer for improving soil quality and crop productivity, with a potential to replace or complement the mineral fertilizers. The main challenges related to human excreta regarding agricultural applications are microbial contamination risks, loss of nutrients, and odor issues. Fertilization by lacto-fermented faeces supplemented by biochar has benefits such as improved soil bulk density, nitrate and potassium concentrations as well as the yield and yield components of corn, compared to untreated, simple stored faeces, urine, cattle manure, and unfertilized controls. Even though the mineral fertilizer produced corn with significantly higher height and leaf length, it did not add significantly higher yields than lacto-fermented faeces supplemented by biochar.
A faeces treatment process by combined lacto-fermentation with thermophilic composting and biochar supplementation had better reduction of coliforms, Escherichia coli, Enterococcus faecalis and Clostridium perfringens, and higher germination of radish and growth of tomatoes than combined lacto-fermentation with vermicomposting. Urine lacto-fermentation contributed to a pH reduction below 4, a decrease in the ammonium concentration and odor strength, as well as an increase in the germination rates compared to untreated stored urine.

The results of this study provide important information that can set the basis for scaling up a sustainable technology for the treatment of source separated human excreta while improving its potential for resource recovery.

More books from CRC Press

Cover of the book Earthquakes and the Urban Environment by Nadejda Andreev
Cover of the book A Guide to Energy Management in Buildings by Nadejda Andreev
Cover of the book Making Sense of Public Health Medicine by Nadejda Andreev
Cover of the book Optical Waves and Laser Beams in the Irregular Atmosphere by Nadejda Andreev
Cover of the book Axoplasmic Transport by Nadejda Andreev
Cover of the book A Concrete Introduction to Real Analysis by Nadejda Andreev
Cover of the book IET Wiring Regulations: Wiring Systems and Fault Finding for Installation Electricians, 7th ed by Nadejda Andreev
Cover of the book Integrated Construction Information by Nadejda Andreev
Cover of the book Materials Science In Construction: An Introduction by Nadejda Andreev
Cover of the book Seismic Performance of Soil-Foundation-Structure Systems by Nadejda Andreev
Cover of the book Numerical Solutions for Partial Differential Equations by Nadejda Andreev
Cover of the book Procurement of Built Assets by Nadejda Andreev
Cover of the book Polluted Sites by Nadejda Andreev
Cover of the book Housing and Asthma by Nadejda Andreev
Cover of the book Statistical Mechanics for Chemistry and Materials Science by Nadejda Andreev
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy