A synergistic combination of nutrient reclamation from manure and resultant hydrochar upgradation by acid-supported hydrothermal carbonization

被引：72

作者：

Dai, Lichun ^{[1
,2
]}

Yang, Bo ^{[3
]}

Li, Hong ^{[4
]}

Tan, Furong ^{[1
,2
]}

Zhu, Nengmin ^{[1
,2
]}

Zhu, Qili ^{[1
,2
]}

He, Mingxiong ^{[1
,2
]}

Ran, Yi ^{[1
,2
]}

Hu, Guoquan ^{[1
,2
]}

机构：

[1] Minist Agr, Biogas Inst, Biomass Energy Technol Res Ctr, Sect 4-13,Renmin South Rd, Chengdu 610041, Sichuan, Peoples R China

[2] Minist Agr, Biogas Inst, Key Lab Dev & Applicat Rural Renewable Energy, Chengdu 610041, Sichuan, Peoples R China

[3] Sanya Univ, Sch Sci & Technol, Sanya 572022, Peoples R China

[4] Chongqing Univ, Three Gorges Reg Minist Educ, Key Lab Ecoenvironm, Chongqing 400044, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 243卷

关键词：

Hydrothermal carbonization; Manure; Phosphorus recovery; Nitrogen recovery; Hydrochar; DEWATERED SEWAGE-SLUDGE; HEAVY-METALS; RICE HUSK; PHOSPHORUS; NITROGEN; RECOVERY; BIOCHAR; PYROLYSIS; IMPACT; PH;

D O I：

10.1016/j.biortech.2017.07.016

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Cattle manure was hydrothermally carbonized in acid solutions (0-2% HCl), then nutrient concentration in liquid product and physicochemical properties of hydrochar were characterized to investigate the effects of acid addition on hydrochar properties and nutrient recovery from manure. Results showed that hydrothermal carbonization (HTC) in 2% HCl extracted almost 100% and 63.38% of phosphorus and nitrogen, respectively; specifically, >90% of the extracted phosphorus was PO4-P in liquid from HTC with acid addition, and increasing amount of extracted nitrogen was NH4-N with increasing acid addition. Generally, higher heating value, surface area, total pore volume, fixed carbon, atomic ratios of H/C and O/C were increased in hydrochars from HTC with acid addition, while yield, volatile matter, contents of nitrogen, sulfur and oxygen of these hydrochars were decreased. These results indicated that HTC with acid addition could simultaneously facilitate nutrient recovery from manure and resulting hydrochar upgradation. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：860 / 866

页数：7

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