title: Biomass based activated carbon obtained from sludge and sugarcane bagasse for removing lead ion from wastewater.
abstract: Sewage sludge and bagasse were used as raw materials to produce cheap and efficient adsorbent with great adsorption capacity of Pb(2+). By pyrolysis at 800 °C for 0.5 h, the largest surface area (806.57 m(2)/g) of the adsorbent was obtained, enriched with organic functional groups. The optimal conditions for production of the adsorbent and adsorption of Pb(2+) were investigated. The results of adsorb-ability fitted the Langmuir isotherm and pseudo-second-order model well. The highest Pb(2+) (at pH = 4.0) adsorption capacity was achieved by treating with 60% (v/v) HNO3. This is a promising approach for metal removal from wastewater, as well as recycling sewage sludge and bagasse to ease their disposal pressure.
authors.affiliation: Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China; Department of Civil & Environmental Engineering, Stanford University, Stanford, CA 94305-4020, USA. Electronic address: taohc@pkusz.edu.cn.
authors.forename: Hu-Chun
authors.initials: HC
authors.lastname: Tao
authors.affiliation: Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: He-Ran
authors.initials: HR
authors.lastname: Zhang
authors.affiliation: Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: Jin-Bo
authors.initials: JB
authors.lastname: Li
authors.affiliation: Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
authors.forename: Wen-Yi
authors.initials: WY
authors.lastname: Ding
mesh_terms: D000327:Adsorption; D002482:Cellulose / Q000737:chemistry*; D002606:Charcoal / Q000737:chemistry*; D007220:Industrial Waste / Q000517:prevention & control; D007477:Ions / Q000302:isolation & purification; D007854:Lead / Q000737:chemistry / Q000302:isolation & purification*; D031786:Saccharum / Q000737:chemistry*; D012722:Sewage / Q000737:chemistry; D014462:Ultrafiltration / Q000379:methods; D062065:Wastewater; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D002482:Cellulose; D002606:Charcoal; D007220:Industrial Waste; D007477:Ions; D007854:Lead; D012722:Sewage; D062065:Wastewater; D014874:Water Pollutants, Chemical; C027433:bagasse
keywords: Activated carbon; Adsorption; Metal removal; Sludge; Sugarcane bagasse