Effects of feedstock type and slow pyrolysis temperature in the production of biochars on the removal of cadmium and nickel from water
- Resource Type
- Authors
- Carlos Eduardo Pellegrino Cerri; Rafaela Feola Conz; Fábio Satoshi Higashikawa; Marina Colzato; Luís Reynaldo Ferracciú Alleoni
- Source
- Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
- Subject
- Sorbent
Waste management
Renewable Energy, Sustainability and the Environment
Chemistry
020209 energy
Strategy and Management
02 engineering and technology
010501 environmental sciences
Raw material
01 natural sciences
Husk
Industrial and Manufacturing Engineering
visual_art
Environmental chemistry
Biochar
0202 electrical engineering, electronic engineering, information engineering
visual_art.visual_art_medium
Chicken manure
Sawdust
POLUIÇÃO DA ÁGUA
Charcoal
Pyrolysis
0105 earth and related environmental sciences
General Environmental Science
- Language
- ISSN
- 0959-6526
Biochar is a universal sorbent suitable in strategies for removing contaminants from both soil and water. This study evaluated the potential of four biochars each produced from a different feedstock for removing Cd and Ni from water. Chicken manure mixed with sawdust (CM), sugarcane straw (SS), rice husk (RH) and sawdust (SW) were used to produce biochar through slow pyrolysis at two temperatures: 350 and 650 °C. The percentage removed and the removal capacity of Cd and Ni from water by biochars at both temperatures used in the pyrolysis followed the order: CM > SS > RH > SW. The removal percentage ranged from 31 to 98% for Cd and 24–72% for Ni, while removal capacity ranged from 0.3 to 12.5 mg g−1 for Cd and 0.2–10.9 mg g−1 for Ni. The type of feedstock had greater influence on the performance of biochars for removing metals than the pyrolysis temperature.