Performance and mechanisms of biochar-based materials additive in constructed wetlands for enhancing wastewater treatment efficiency: A review

Recent Advances in the Effects of Biochar on Constructed Wetlands: Treatment Performance and Microorganisms

“…Under different hydraulic conditions, coir shell and shell with the highest biochar content in the matrix also have better removal effects on pollutants and stronger wastewater purification capacity [17]. Biochar produced with different methods also has different abilities to fix metals [18]. The physical and chemical properties of biochar are mainly determined by the temperature of biomass materials and pyrolysis.…”

Added Biochars Promoted Nitrogen and Phosphorus Removal from Ecological Ditches at Low Temperature

“…On the other hand, biochars were organic carbon in the low-carbon-ratio influent, improving denitrification efficiency [14][15][16]. A recent work of research indicated that the biochar raw materials were divided into four categories: wood, agricultural waste, sludge, and food waste [17]. The pollutant removal of different biochar materials were different: Guo et al found that biochars made from different wetland plants had varied denitrification efficiencies [18], while Zheng et al discovered that the TN removal rates in constructed wetlands supplemented with sludge-derived biochar and cattail-derived biochar increased by 24% and 14%, respectively [19].…”

“…The pollutant removal of different biochar materials were different: Guo et al found that biochars made from different wetland plants had varied denitrification efficiencies [18], while Zheng et al discovered that the TN removal rates in constructed wetlands supplemented with sludge-derived biochar and cattail-derived biochar increased by 24% and 14%, respectively [19]. Commonly used biochars, such as those made of reeds, rice, and corn, were widely applied in constructed wetlands, effectively [17,[20][21][22]. Additionally, the method of biochar addition also caused variations in efficiencies.…”

Bio-based sunflower carbon/polyethylene glycol shape-stabilized phase change materials for thermal energy storage

“…Biomass porous carbon materials have attracted widespread attention and are widely used in many fields, such as energy storage, 25,26 supercapacitors, 27,28 wastewater treatment, 29,30 and electromagnetic shielding, 31,32 because of their vast source, low cost, and renewability, and are synthesized from biomass through thermochemical degradation processes such as gasification, hydrothermal carbonization, and high-temperature pyrolysis under anoxic or micro-oxygen conditions. 33 Biomass is a plant resource composed of organic carbon, 34 which primarily includes agricultural by-products such as straw, rice husk, corn kernel, fruit shells, and bamboo wood, and its chemical composition is mainly cellulose, hemicellulose and lignin, some of which contain a small amount of silica.…”