title: Physicochemical properties of biochar produced from aerobically composted swine manure and its potential use as an environmental amendment.
abstract: Biochars derived from the pyrolysis, at 400 and 700°C, respectively, of fresh (T0), 21d (T1) and 84d (T2) aerobically composted swine manure, were characterized and investigated for their potential use as environmental amendments. The biochar yield significantly increased following composting, but decreased with increased temperature. The ash content, surface area (SA), pH, electrical conductivity (EC), mineral nutrients, total heavy metals (except Cd) and available As, Cu, Mn and Zn concentrations of biochar produced at 700°C were higher than in biochar produced at 400°C, whereas the volatile matter, higher heating value (HHV) and elemental composition were decreased. The maximum Cu(II) adsorption capacity was 20.11 mg g(-1) by biochar produced from T2 at 400°C. The pyrolysis of 84d aerobically composted swine manure to produce biochar at 400°C could be used as a soil amendment, or as an adsorbent for the removal heavy metal ions from wastewater.
authors.affiliation: College of Environmental and Natural Resources Sciences, Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition, Zhejiang University, Hangzhou 310058, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Meng
authors.forename: Lili
authors.initials: L
authors.lastname: Wang
authors.forename: Xingmei
authors.initials: X
authors.lastname: Liu
authors.forename: Jianjun
authors.initials: J
authors.lastname: Wu
authors.forename: Philip C
authors.initials: PC
authors.lastname: Brookes
authors.forename: Jianming
authors.initials: J
authors.lastname: Xu
mesh_terms: D000327:Adsorption; D000332:Aerobiosis; D000818:Animals; D002606:Charcoal / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D008372:Manure; D012987:Soil; D013552:Swine
chemical_list: D008372:Manure; D012987:Soil; C540010:biochar; D002606:Charcoal
keywords: Adsorption; Aerobic composting; Biochar; Pyrolysis; Swine manure