Hydrothermal carbonization of anaerobic digestate and manure from a dairy farm on energy recovery and the fate of nutrients

被引：66

作者：

Belete, Yonas Zeslase ^{[1
]}

Mau, Vivian ^{[1
]}

Spitzer, Reut Yahav ^{[1
]}

Posmanik, Roy ^{[2
]}

Jassby, David ^{[3
]}

Iddya, Arpita ^{[3
]}

Kassem, Nazih ^{[4
,5
]}

Tester, Jefferson W. ^{[4
,5
]}

Gross, Amit ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Blaustein Inst Desert Res, Zuckerberg Inst Water Res, IL-84990 Midreshet Ben Gurion, Israel

[2] Volcani Inst, Agr Res Org ARO, Rishon Leziyyon, Israel

[3] Univ Calif Los Angeles, Dept Civil & Environm Engn, Los Angeles, CA USA

[4] Cornell Univ, Smith Sch Chem & Biochem Engn, Ithaca, NY USA

[5] Cornell Univ, Cornell Energy Syst Inst, Ithaca, NY USA

来源：

BIORESOURCE TECHNOLOGY | 2021年 / 333卷

关键词：

Dairy waste; Hydrothermal carbonization; Hydrochar; Nutrient; Energy balance; WASTE; TEMPERATURE; PHOSPHORUS; HYDROCHARS; CONVERSION; PYROLYSIS; WHEY;

D O I：

10.1016/j.biortech.2021.125164

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Hydrothermal carbonization (HTC) of raw and anaerobically digested (AD) manure with either water or whey was studied, with the goal of recovering energy and nutrients. Specifically, the impacts of HTC reaction temperature (180-240 degrees C), solid feedstock, and type of liquid on hydrochar quality and aqueous phase properties were tested. Of the hydrochars produced, the calorific value of whey-based hydrochar was the highest, (19.4 and 16.0 MJ/kg for manure and digestate, respectively). Overall, the net energy gain was higher for HTC of manure with whey (7.4-8.3 MJ/kg dry feedstock) and water (4.4-5.1 MJ/kg) compared to the combined AD-HTC process with whey (4.4-5.3 MJ/kg) and water (2.3-2.9 MJ/kg). Digestate-derived hydrochar contained up to 1.8% P, higher than manure-derived hydrochar (<= 1.5%). Using whey as a liquid for HTC increased the aqueous-phase NP-K concentrations up to 3,200, 410, and 7,900 mg/L, respectively, suggesting its potential use as a liquid fertilizer.

引用

页数：9

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