Biochar Derived from Sewage Sludge as a Soil Amendment: The Impact of Pyrolysis Temperature on Product Characteristics Along with Heavy Metal Environmental Risk

被引：3
作者：
Bauer, T. M. [1 ]
Polyakov, V. A. [2 ]
Minkina, T. M. [1 ]
Kirichkov, M. V. [1 ]
Gritsai, M. A. [2 ]
Namsaraev, Z. B. [3 ]
Rajput, V. D. [1 ]
机构：
[1] Southern Fed Univ, Acad Biol & Biotechnol, Rostov Na Donu, Russia
[2] Southern Fed Univ, Smart Mat Res Inst, Rostov Na Donu 344090, Russia
[3] Kurchatov Inst, Natl Res Ctr, Moscow, Russia
来源：
NANOBIOTECHNOLOGY REPORTS | 2024年 / 19卷 / 03期
基金：
俄罗斯科学基金会;
关键词：
HYDROTHERMAL CARBONIZATION; CO-PYROLYSIS; RICE STRAW; WASTE; BEHAVIOR; BIOMASS; WATER; IMMOBILIZATION; TRANSFORMATION; LIQUEFACTION;
D O I：
10.1134/S2635167624600779
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The purpose of this research was to investigate the impact of pyrolysis temperature on the properties of biochars fabricated by sewage sludge. Increasing pyrolysis temperature from 300 to 900 degrees & Scy; led to an increase of biochar pH between 8.4-11.8, ash content 60-75% as well as specific surface area 68-161 m(2) g(-1). At the same time, there were reduced H, O, C, S, N contents, the H/C and O/C ratios. An increase in pyrolysis temperature enhanced the content of metals in biochars and reduced their bioavailability. XRD analysis confirmed a higher degree of metal-containing phases of formation in biochar with increasing pyrolysis temperature.
引用
收藏
页码：366 / 380
页数：15
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