Research Progress on the Preparation and Application of Sludge Biochar
China is facing substantial and growing challenges in municipal sludge disposal.The current conven-tional municipal sludge treatment and disposal methods suffer from low stabilization rates,high energy con-sumption,and secondary pollution,and there is an urgent need to develop environmentally friendly and safe re-source utilization approaches.Pyrolytic carbonization technology represents a promising sludge treatment method,and the resulting biochar has great potential for application in wastewater treatment and soil quality im-provement.Despite the potential of sludge biochar,comprehensive reviews on the factors influencing its produc-tion,modification techniques,and specific applications in wastewater treatment and soil quality improvement are insufficient.This paper systematically presents the principles and methods of sludge biochar preparation,an-alyzes the impact of factors such as pyrolysis temperature,duration,heating rate,and additives on its properties,and explores modification methods to enhance its performance.This paper also reviews the applica-tions of sludge biochar in soil amelioration and water pollutant adsorption,providing prospects for future re-search.
municipal sludgesludge biocharmodificationpollution controlsoil improvement
万方数据
维普
