Matches in SemOpenAlex for { <https://semopenalex.org/work/W2935687046> ?p ?o ?g. }
- W2935687046 endingPage "378" @default.
- W2935687046 startingPage "366" @default.
- W2935687046 abstract "Biological and thermochemical sanitization of source-separated human solid waste (HSW) are effective technologies for unsewered communities. While both methods are capable of fecal pathogen sterilization, the agronomically-beneficial properties of waste sanitized between methods remains unclear. Therefore, this study compared recovery and quality of soil amendments produced by compostation, torrefaction, and pyrolysis of HSW, established their financial value, and quantified tradeoffs between product value and conversion efficiency. Temperature and associated mass losses significantly affected the physical and chemical properties of thermochemically-treated HSW. Thermophilic composting, a biological sanitation method practiced in informal settlements in Nairobi, Kenya, produced an amendment that contained between 16 and 858-fold more plant-available nitrogen (N; 214.5 mg N/kg) than HSW pyrolyzed between 300 and 700 °C (0.2–15.2 mg N/kg). Conversely, HSW pyrolyzed at 600 °C had four-fold higher plant-available phosphorus (P; 3117 mg P/kg) and five-fold higher plant-available potassium (K; 7403 mg K/kg) than composted HSW (716 mg P/kg and 1462 mg K/kg). Wide variation between international fertilizer prices on the low end and regional East African prices on the high end resulted in broad-spaced quantiles for the value of agronomic components in HSW amendments. Phosphorus and K comprised a disproportionate amount of the value, 52–87%, compared to plant-available N, which contributed less than 2%. The total value of treated HSW, summed across all agronomic components per unit weight amendment, was greatest for thermochemically-treated HSW at 600 °C, averaging 220 USD/Mg, more than four-fold that of composted HSW, 53 USD/Mg. In contrast, torrefaction provided the highest monetary value per unit weight feedstock, 144 USD/Mg, as low heating temperatures engender minimal mass loss and higher nutrient densities per unit weight feedstock, compared to composted or pyrolyzed HSW. When benchmarked against total N, P, and K of eight commonly-applied organic amendments, including sewage-sludge (Milorganite), compost, and alfalfa meal, HSW pyrolyzed at 700 °C was of greatest value per unit weight of amendment, 365 USD/Mg, compared to 89 USD/Mg for composted HSW, and contained 2.9% total N (0.5 mg available N/kg), 3.1% total P (7640 mg available P/kg), 3.5% total K (17,671 mg available K/kg)." @default.
- W2935687046 created "2019-04-25" @default.
- W2935687046 creator A5004826453 @default.
- W2935687046 creator A5010625810 @default.
- W2935687046 creator A5014679580 @default.
- W2935687046 creator A5042699954 @default.
- W2935687046 creator A5043488647 @default.
- W2935687046 creator A5063397968 @default.
- W2935687046 date "2019-04-01" @default.
- W2935687046 modified "2023-10-03" @default.
- W2935687046 title "Biological and thermochemical conversion of human solid waste to soil amendments" @default.
- W2935687046 cites W1594095768 @default.
- W2935687046 cites W1758664273 @default.
- W2935687046 cites W1805381326 @default.
- W2935687046 cites W1967101542 @default.
- W2935687046 cites W1970076390 @default.
- W2935687046 cites W1981715012 @default.
- W2935687046 cites W1984069785 @default.
- W2935687046 cites W1987490818 @default.
- W2935687046 cites W1987628591 @default.
- W2935687046 cites W1988113681 @default.
- W2935687046 cites W1989006506 @default.
- W2935687046 cites W1992198528 @default.
- W2935687046 cites W1994624079 @default.
- W2935687046 cites W1997490480 @default.
- W2935687046 cites W2002193414 @default.
- W2935687046 cites W2004831700 @default.
- W2935687046 cites W2012598519 @default.
- W2935687046 cites W2017883609 @default.
- W2935687046 cites W2018460896 @default.
- W2935687046 cites W2018662558 @default.
- W2935687046 cites W2019613863 @default.
- W2935687046 cites W2021935248 @default.
- W2935687046 cites W2023954195 @default.
- W2935687046 cites W2024766984 @default.
- W2935687046 cites W2028263805 @default.
- W2935687046 cites W2030408564 @default.
- W2935687046 cites W2042052842 @default.
- W2935687046 cites W2044888990 @default.
- W2935687046 cites W2047950649 @default.
- W2935687046 cites W2049129466 @default.
- W2935687046 cites W2050552134 @default.
- W2935687046 cites W2056641622 @default.
- W2935687046 cites W2063410840 @default.
- W2935687046 cites W2071506818 @default.
- W2935687046 cites W2077213975 @default.
- W2935687046 cites W2078206549 @default.
- W2935687046 cites W2078270988 @default.
- W2935687046 cites W2080965447 @default.
- W2935687046 cites W2081819300 @default.
- W2935687046 cites W2085474059 @default.
- W2935687046 cites W2087004776 @default.
- W2935687046 cites W2088145197 @default.
- W2935687046 cites W2097467169 @default.
- W2935687046 cites W2099663213 @default.
- W2935687046 cites W2100653346 @default.
- W2935687046 cites W2102782029 @default.
- W2935687046 cites W2103988865 @default.
- W2935687046 cites W2107496595 @default.
- W2935687046 cites W2113750680 @default.
- W2935687046 cites W2123145468 @default.
- W2935687046 cites W2128454060 @default.
- W2935687046 cites W2134295117 @default.
- W2935687046 cites W2141362853 @default.
- W2935687046 cites W2141370599 @default.
- W2935687046 cites W2141666921 @default.
- W2935687046 cites W2156687357 @default.
- W2935687046 cites W2157423028 @default.
- W2935687046 cites W2168300146 @default.
- W2935687046 cites W2280616934 @default.
- W2935687046 cites W2337595190 @default.
- W2935687046 cites W2341230696 @default.
- W2935687046 cites W2466564333 @default.
- W2935687046 cites W2471690155 @default.
- W2935687046 cites W2511404131 @default.
- W2935687046 cites W2536933884 @default.
- W2935687046 cites W2542473081 @default.
- W2935687046 cites W2563248266 @default.
- W2935687046 cites W2575895030 @default.
- W2935687046 cites W2608694685 @default.
- W2935687046 cites W2618443559 @default.
- W2935687046 cites W2620859519 @default.
- W2935687046 cites W2753986250 @default.
- W2935687046 cites W2756089889 @default.
- W2935687046 cites W2782195536 @default.
- W2935687046 cites W2789893224 @default.
- W2935687046 cites W2802932976 @default.
- W2935687046 cites W2854253574 @default.
- W2935687046 cites W2884047149 @default.
- W2935687046 cites W2896788037 @default.
- W2935687046 cites W4230096730 @default.
- W2935687046 doi "https://doi.org/10.1016/j.wasman.2019.04.010" @default.
- W2935687046 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6538828" @default.
- W2935687046 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31079750" @default.
- W2935687046 hasPublicationYear "2019" @default.
- W2935687046 type Work @default.
- W2935687046 sameAs 2935687046 @default.
- W2935687046 citedByCount "21" @default.