Treatment of Source-Separated Human Feces via Lactic Acid Fermentation Combined with Thermophilic Composting

Andreev, Nadejda; Ronteltap, Mariska; Boincean, Boris; Lens, Piet N.L.

doi:10.1080/1065657x.2016.1277809

Cited by 14 publications

(22 citation statements)

References 43 publications

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“…The effect of this compost on the germination and growth of plants is also explored in this chapter to understand the potential for the recycling of the nutrients present in the human faeces that are collected in UDDTs. The pathogen removal in lacto-fermented excreta (Table 3.3) did not comply with the recommendations for soil amendments that are obtained from biological treatment (Hogg et al, 2002), aside from improved hygienization through supplementary treatment via thermophilic composting (Andreev et al, 2017).…”

Section: Lactic Acid Fermentation Of Human Excreta For Agricultural Amentioning

confidence: 94%

“…An interesting fact is that the sanitizing temperature of 56-65°C during the posttreatment composting stage, after the lactic acid fermentation, was achieved without turning or mixing (Andreev et al, 2017). This may be related to the types of microorganisms that are involved in this process under low oxygen conditions (Wang et al, 2007b), the enzymes synthesized by lactic acid bacteria during fermentation (Muller, 2001), or the concentration of easily degradable organic carbon in the substrate .…”

Section: Lactic Acid Fermentation Of Human Excreta For Agricultural Amentioning

confidence: 99%

“…For an efficient lacticacid fermentation, sources of soluble carbohydrates need to be used that have other competitive economic uses. For example, experiments on excreta lactic acid fermentation were carried out with the application of wheat bran and mollases (Yemaneh et al, 2013;Böttger et al, 2014;Scheinemann et al, 2015;Andreev et al, 2016;Andreev et al, 2017).…”

Section: Input Materials Required For Lactic Acid Fermentation Of Excmentioning

confidence: 99%

“…Recently, thermophilic composting was proposed as a post-secondary step to efficiently recycle the nutrients and organic matter as well as to reduce the pathogen contamination (Andreev et al, 2017). Biochar supplementation at the end of the lactic acid fermentation or at the thermophilic or vermi-composting stage increases the stability of carbon matter and reduces the nitrogen loss via volatilization.…”

Section: General Introductionmentioning

confidence: 99%

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Lactic acid fermentation of human excreta for agricultural application

Andreev

Ronteltap

Boincean

et al. 2018

Journal of Environmental Management

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Although all care is taken to ensure integrity and the quality of this publication and the information herein, no responsibility is IHE for any damage to the property or persons as a result of operation or use of this publication and/or the information contained herein. A pdf version of this work will be made available as Open ....................................................................................................................................... 48 3.1 Introduction ........................................................................................................................ ........................................................................................................... 52 3.3 Results ...................................................................................................................................... 56 3.4 Discussion ................................................................................................................................. 61 3.5 Conclusions ......................................................................................................................... .................................................................................................................................... 73 4.3 Results ...................................................................................................................................... 84 4.4 Discussion ............................................................................................................................... 101 4.5 Conclusions ............................................................................................................................ 109 Chapter 5. Lactic acid fermentation of human urine for improving its fertilizing value and reducing odour emissions in urine diverting dry toilets ............................................ 111 Abstract ........................................................................................................................................ 112 5.1 Introduction ...................................................................................................................... ................................................................................................. 143 6.6 Potential entrepreneurial models ......................................................................................... 149 6.7 Conclusions ............................................................................................................................ 151 References .................................................................................................................................... 153 Appendixes .............................................................................................................................. only. Lactic acid fermentation of the mix of faeces and bio-waste with the addition of lactic acid bacteria and molasses followed by thermophilic composting led to a rapid incr...

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Section: Lactic Acid Fermentation Of Human Excreta For Agricultural Amentioning

confidence: 94%

Section: Lactic Acid Fermentation Of Human Excreta For Agricultural Amentioning

confidence: 99%

Section: Input Materials Required For Lactic Acid Fermentation Of Excmentioning

confidence: 99%

Section: General Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Lactic acid fermentation of human excreta for agricultural application

Andreev

Ronteltap

Boincean

et al. 2018

Journal of Environmental Management

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“…LAF is a cheap method that can be achieved through acidification at pH < 4 ( Anderson et al., 2015b ). LAF of feces is a simple and economical method that can be achieved through acidification ( Andreev et al., 2017a ). However, a number of LAB species do not produce effective lactic acids for pathogen inactivation in FS.…”

Section: Introductionmentioning

confidence: 99%

Locally produced lactic acid bacteria for pathogen inactivation and odor control in fecal sludge

Odey

Zhou

et al. 2018

Journal of Cleaner Production

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Providing safe fecal sludge (FS) sanitation has remained an important goal of global communities because of the high risks imposed on human health of the exposure to un-sanitized FS. This study used lactic acid fermentation as a pre-treatment technology to evaluate the sanitization effect of lactic acid bacteria (LAB) on FS. A combination of fermented rice flour and brown sugar was used as the medium to prepare LAB, and fecal coliforms were used as the indicator organisms. The addition of a LAB suspension grown in fermented rice flour and brown sugar to FS was studied to evaluate the survival of fecal coliforms. The pH decreased during ongoing lactic acid fermentation after the addition of the LAB suspension. The results revealed that fecal coliforms in reactors containing 1:1 and 2:1 w/w of FS and LAB suspension decreased to half of the initial concentration within seven days of the treatment process in comparison with that of the control reactor. Viable plate counts of 0.6 × 108, 0.9 × 108, and 2.4 × 108 CFU/100 mL were recorded from reactors 1:1, 2:1, and the control, respectively. The total elimination of the fecal coliforms below the detection limit (<3 log 10 CFU/100 mL) was observed in both reactors after 15–17 days, whereas the number of fecal coliforms remained at 2.3 × 108 CFU/100 mL in the control reactor. The fecal coliforms were eliminated because of the acidification caused by the LAB during the incubation time. The final pH in the treatment reactors 1:1 and 2:1 was 3.7 and 3.9. While the final pH in the control reactor was 7.91. The results revealed that the bacterial pathogens in FS can be completely eliminated through a low-cost technique and a simple lactic acid fermentation process.

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Survival of Pathogenic and Antibiotic-Resistant Bacteria in Vermicompost, Sewage Sludge, and Other Types of Composts in Temperate Climate Conditions

Grantina-Ievina

Rodze

2020

Soil Biology

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Treatment of Source-Separated Human Feces via Lactic Acid Fermentation Combined with Thermophilic Composting

Cited by 14 publications

References 43 publications

Lactic acid fermentation of human excreta for agricultural application

Lactic acid fermentation of human excreta for agricultural application

Locally produced lactic acid bacteria for pathogen inactivation and odor control in fecal sludge

Survival of Pathogenic and Antibiotic-Resistant Bacteria in Vermicompost, Sewage Sludge, and Other Types of Composts in Temperate Climate Conditions

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